СПОСОБ ПОЛУЧЕНИЯ СТАЛЬНЫХ ПОКОВОК ПОЛУКОРПУСОВ ШАРОВЫХ КРАНОВ

Изобретение относится к обработке металлов давлением и может быть использовано при изготовлении крупногабаритных стальных поковок полукорпусов шаровых кранов и изделий подобной конфигурации, имеющих массу свыше одной тонны. Исходную стальную заготовку в виде обечайки нагревают в интервале температур горячей штамповки до температуры, переменной по высоте обечайки. Затем одновременно формируют днище и горловину полукорпуса шарового крана. Горловину получают путем горячего обжима и высадки обечайки. При этом температуру нагрева обечайки на соответствующей высоте определяют по приведенным зависимостям. В результате обеспечивается повышение качества поверхности поковки, минимизация окалинообразования и, как следствие, увеличение стойкости инструмента, сокращение металлоемкости за счет приближения формы и размеров поковки к детали. 1 з.п. ф-лы, 2 ил., 1 табл.

Способ изготовления горячей штамповкой клапана с биметаллической оболочкой

СПОСОБ ИЗГОТОВЛЕНИЯ ГОРЯЧЕЙ ; ШТАМПОВКОЙ КЛАПАНА С БИМЕТАЛЛИЧЕСКОЙ ОБОЛОЧКОЙ из заготовки, содержащей соединенные сваркой трением стержень из конструкционной стали и тарелку из У/ I С:.,. жаропрочного металла, имеющую внутри полость, заполненную теплопроводным: материалом, отличающийся тем, что, с целью повышения рабочего ресурса клапана и экономичности технологии изготовления, стержень выполняют с хвостовиком в виде усеченного обратного конуса с диаметром максим-льного сечения, соответствующим диаметру полости в тарелке и превьшающим диаметр.минимального сечения не более чем в четыре раза, в качестве теплопроводного материала используют опилки или стружку из отходов металлообработки, засыпают их в полость до торцов тарелки клапана и прессуйт осевым усилием в процессе сварки трением с помощью хвостовика стержня. 00 со 00 со ...

Способ изготовления изделий типа стаканов

Использование: технология пластического деформирования металлов. Сущность изобретения: получают отрезкой от прутка заготовку, производят ее подготовку под выдавливание формуют стакан, осуществляя межоперационные отжиг и фосфотиро- вание. Подготовку заготовки под выдавливание выполняют за четыре перехода путем набора конусообразной головки, раздачи заготовки в зоне головки при наметке отверстия и двойного редуцирования, осуществляемых на многопозиционном хо- лодновысадочном автомате. 1 ил.

Bauteil für Schnellkupplung mit Druckreduzierungsteil

Method of fabricating a forged flange-type ball valve

An improved method of producing integral wrought valve bodies

... 472,055. Making valves and cocks. CORNELL, jun., E. S. March 23, 1936, No. 8642. Convention date, March 22, 1935. [Classes 83 (ii) and 83 (iv)] Forging-dies.-Rolates to the production of integral wrought valve bodies particularly of the inverted-T-type shown in Fig. 1, and consists in a method of cold working a solid blank of copper or copper alloy in dies whereby the various limbs are progressively formed both internally and externally, leaving an internal part for the valve seat. A solid blank which may be cylindrical, is placed in a cavity of a die 22, Fig. 3, and pressure applied by punches 23, 24 shaped as shown. The punches 23 are replaced by punches with less pointed ends, and reamers in turn shape the end passages. After further shaping in dies, drilling takes place horizontally through the central partition at the top and bottom thereof. The drilled holes are enlarged by punches 31a, 31b, Fig. 8, to the form of segmental apertures. Successive drilling, shaping, reamering, and screw ...

Improvements relating to valve-seats for internal combustion engines

... 352,856. Valve - seats. ANDREWS, H., of Andrews Grinding Co., Cheapside, Birmingham. Oct. 28, 1930, No. 32292. [Class 135.] Means for renewing valve seats of internalcombustion engines comprise a grooved seating ring e which is forced into a recess cut in the part b containing the original seat, and a split spring ring g which expands into a groove d to hold the ring e in place. A sleeve compresses the ring g during insertion.

Procedure and pressing tool for manufacturing verscheweißten out with one another parts existing housings for piping large armatures, T-pieces od.dgl.

VALVE CASING FOR A GATE VALVE

Procédé de fabrication d'une vanne métallique, dispositif pour la mise en oeuvre de ce procédé et vanne fabriquée au moyen de ce procédé

Axial piston machine with coated sliding surface.

Die Erfindung betrifft eine Axialkolbenmaschine umfassend eine Trommel (10) mit Zylinderbohrungen (3) und darin aufgenommenen Kolben (4), die zwischen einer Gleitscheibe und einer Steuerplatte angeordnet ist, wobei die Trommel (10) um eine Rotationsachse rotierbar gelagert ist. Dabei ist wenigstens ein Bauteil der Axialkolbenmaschine an einer, mit einem Gleitpartner in Kontakt stehenden, Oberfläche zumindest abschnittsweise mit einer auftragsgeschweissten Beschichtung überzogen. Die Erfindung betrifft ferner ein Verfahren zur Herstellung einer derartigen Axialkolbenmaschine, wobei die Beschichtung durch Auftragschweissen und vorzugsweise Laserauftragschweissen angebracht wird.

Process for manufacturing a drum a axial piston machine.

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer Trommel (10) einer Axialkolbenmaschine (1) durch Bearbeitung eines zylinderförmigen Rundmetalls, wobei die Bearbeitung ein Schmieden umfasst. Zudem wird bei der Bearbeitung wenigstens ein Strukturelement (21, 22) der Trommel durch das Schmieden gefertigt oder vorgefertigt.

Valve body forges mould

Device of advance of the chucks of the presses for the execution of metal parts machined by hot pressing

Quick action element of coupling, its manufactoring process, and quick action coupling

L'invention concerne un raccord rapide. Elle se rapporte à un élément (2) de raccord rapide ayant un obturateur (1). Un organe ayant un canal (7) de réduction de pression est disposé dans l'obturateur et comporte un élément d'arrêt (8) placé dans le canal, qui peut être en appui contre un siège (9) et qui est soulevé par un organe (13) d'activation malgré la force appliquée par un ressort (10). La surface du siège a un degré de finesse qui correspond dans une grande mesure à celui de l'élément d'arrêt. Ce dernier a une dureté nettement supérieure à celle du matériau du siège. L'élasticité du matériau du siège contribue à l'étanchéité de l'élément contre le siège en position de fermeture. Application aux raccord rapides.

METHOD FOR PRODUCING A VALVE, AND TOOL FOR STAMPING A DOME IN AN ANCHOR PIN OF A VALVE

The invention relates to a method for producing a valve, in particular an electromagnetically actuatable pressure control valve for a high-pressure accumulator of an internal combustion engine. The valve comprises an anchor pin (1) which is received in a valve housing in an axially movable manner and which has a dome (2) at one end face, said dome being introduced by means of a stamping process. The dome (2) stamping process is carried out outside of the valve housing by means of a tool. A tool for stamping a dome (2) into an end face of an anchor pin (1) of such a valve comprises a guide body (4) with a guide bore (3) and a stamping body (6) which is received in the guide bore (3) for plastically deforming the end face of the anchor pin (1), the diameter of said guide bore (3) being selected in relation to the diameter of the anchor pin (1) such that a clearance of less than 15 micrometers, preferably 10 micrometers, remains between the inserted anchor pin (1) and the guide body (4).

Method for manufacturing cast iron member

There is provided a method for manufacturing a cast iron member in which the production of gas defects such as blowholes or pinholes in a clad layer formed on the surface of a cast iron material can be reduced, and the generation of bead cracks in the clad layer can be restrained. In the method for manufacturing a cast iron member, including a step of forming the clad layer by melting a material for cladding by means of irradiation of a laser emitted from a laser irradiation device and by depositing the melted material on the surface of a part of the cast iron material, the step of forming the clad layer is performed by using a material the main ingredient of which is a copper element as the material for cladding so that when the clad layer is formed, a hardened layer having a thickness of 0.01 to 2.0 mm is formed on the surface of the cast iron material.

Method of manufacturing a modular fuel injector

A method of fabricating a modular fuel injector permits the fabrication of the electrical group subassembly outside a clean room while a fuel group subassembly is fabricated inside a clean room. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a second end; a seat that is secured at the second end of the tube assembly and that defines an opening; an armature assembly that is disposed within the tube assembly; a member that biases the armature assembly toward the seat; an adjusting tube that is disposed in the tube assembly and that engages the member for adjusting a biasing force of the member; a filter that is located at least within the tube assembly; and a first attachment portion. The coil group subassembly includes a solenoid coil that is operable to displace the armature assembly with respect to the seat; and a second attachment portion ...

Valve seat ring securing tool

Process and device for manufacturing hollow, internally cooled valves

A matrix for shaping a valve preform has a circular through opening and a reduced conical section. The reduced conical section tapers from an outer diameter to a reduced cone inner diameter, the outer diameter being greater than or equal to the initial outer diameter of the valve preform, and the matrix inner diameter being smaller than the initial outer diameter.

Method for producing valve casings

EXHAUST BYPASS VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To provide an additional tightening joint structure capable of maintaining joining force of an additional tightening part of a platelike member and a shaftlike member for a long time. SOLUTION: By pressurizing both sides of the shaftlike member inserted into a through hole of the platelike member and giving additional tightening deformation to one end of the shaftlike member, joining force is obtained by nipping force generated between a first joint face and a third joint face of both faces of the platelike member and tension force generated by swelling deformation onto an outside diameter side of the shaftlike member on a second joint face and a fourth joint face formed around the shaftlike member. For this reason, a gently inclined face (chamfered shape) is constituted as the fourth joint face in a corner part on an additional tightening side of the shaftlike member of the through hole. COPYRIGHT: (C)2006,JPO&NCIPI ...

Verfahren zum Warmschmieden von úÈ-foermigen Armaturen, insbesondere Ventilgehaeusen

Diaphragm valves and method of making the same

... 989,585. Valves. GRINNELL CORPORATION. July 15, 1963 [July 19, 1962], No. 27895/63. Heading F2V. [Also in Division B3] Making weir-type diaphragm valve bodies. (a) Pressing.-A carbon steel tube is heated to 1200‹ F. and then compressed between socketed die halves 14, 16, Fig. 7, to provide a bulged centre part 32; a core 34 limits movement of the die-halves. A rotary tool is employed to make an opening 12, Fig. 4, in the middle of the centre part 32 after which the tube is re-heated to 1200‹ F. and then disposed between dies 37, 38, Fig. 9. The base 43 of lower die 38 has a weir-shaping plate 44 surrounded by pins 45 slidable in a platform 48 urged upwardly by springs 50, one around each pin; an opening 52 in the platform 48 allows the passage of the plate 44. Whilst the weir is being shaped the tube 12 is held on the platform 48 by cradles 46 and opposed spring- loaded plungers 63 operated by cams 70 on the die base 43. The upper die 37 has cradles that co-operate with cradle 46 and a ...

METHOD OF FORMING HEAD MEMBER HAVING INTEGRAL VALVE SEATS FOR REED VALVE

VALVE CASING FOR A GATE VALVE

Integral forging mold of valve body with flanges, and forging method

The invention relates to an integral forging mold of a valve body with flanges, and a forging method, and belongs to the technical field of metal forging. The lower portion of an upper male mold of the mold is provided with an upper convex semicircular arc adaptive to the shape of a valve body cylindrical main body and an upper convex cavity which respectively extends towards two ends from the semicircular arc and is adaptive to a valve body upper half flange neck and a flange; the upper portion of a lower female mold is provided with a lower concave semicircular arc adaptive to the shape of a valve body cylindrical main body and a lower concave cavity which respectively extends towards two ends from the semicircular arc and is adaptive to a valve body lower half flange neck and a flange; and the two sides, which are opposite to the upper half flange neck, of the upper male mold and the two sides, which are opposite to the lower half flange neck, of the female mold are each provided with ...

Improvements with the valves with vapor, hydraulics and others

Body of valve stamped, in particular for valves with average and high pressure, and proceeded for the manufacture of the known as body

PROCESS AND DEVICE FOR THE REALIZATION OF BODY OF VALVE BY FORGING

Apparatus for valve of various type of forging method

Method of forming and securing valve seats in position

ASSEMBLING METHOD AND ASSEMBLING DEVICE FOR VALVE SEAT MEMBER

PURPOSE: To facilitate the assembling of a valve seat member having a valve seat surface into a housing. CONSTITUTION: A valve seat member 12 is pushed into a hole 11b provided on a housing 11 and having an oil passage 11a opened in the bottom surface by use of a punch 26, and a valve seat surface 12b is formed simultaneously with it. The valve seat 12 having an axial liquid passage 12a and a hole 12d having a flat inner bottom surface is assembled into the lower end of a sleeve 27, and the punch 26 is lowered to press the valve seat member 12 into the hole 11b of the housing 11 by the top end of the punch 26. The punch 26 has a truncated conical valve seat surface forming part 26c on the top end, so that the inner bottom surface of the hole 12d of the valve seat member 12 is plastically deformed into a truncated cone simultaneously with the press-in to form the valve seat surface 12b. Thus, the press-in of the valve seat member 12 and the formation of the valve seat surface 12b can be ...

Manufacturing process for forging flanged ball valve seats uses blanks with friction welding faces of water inlet seat and ball valve seat welded together by friction welding with welding slag in centre hole cleared by ram

Four dies are produced to which four parts are swage-forged. The blanks of a water inlet seat (1), a ball valve seat (2), a limiting seat (3) and a water outlet seat (4) are produced with the four swages and at the same time the centre holes and the socket chamber (21) for the balls are produced. The front side of the necks (11, 22) form a friction welding face whereby the friction welding faces of the blanks are welded together by friction welding to produce a left and right main body with the welding slag adhering to the neck and inner wall of the centre hole. The welding slag on the inside wall of the centre hole is removed by a ram to produce a smooth inside wall and the slag at the neck is removed by surface finishing. An indentation is worked out in the socket of the ball valve seat corresponding in circumference to that of the ball and a left groove for a left water seal is formed in the front inside wall of the centre hole of the limiting seat.

Improvements in or relating to valve seats for internal combustion engines

... 320,830. Andrews, H., and Andrews, A. Jan. 25, 1929. Seats.-A new seating for a poppet valve is provided by machining out a recess a around the cylinder port b, and by forcing therein a ring d which is machined to be a smooth driving fit in the recess and to provide a lip e at the bottom, which becomes forced outwards into an undercut groove c at the bottom of the recess. The ring d is preferably of centrifugally-cast iron.

Improvements relating to steam, hydraulic and like valves

... 347,732. Making valves. GRAY, T. F., BOLTON, E. A., and VICTORY VALVES, Ltd., Adswood, Stockport, Cheshire. Jan. 4, 1930, No. 414. [Classes 83 (ii) and 83 (iv).] Perforating and dividing by fusion.-Highpressure steam or hydraulic valve bodies of large size are produced from forgings by combined processes of machining and flame cutting from machined holes by oxy-acetylene or other flame. For a parallel slide valve, as shown in Figs. 4 and 10, a forging of a plain cube-like form is first shaped exteriorly by flame cutting, and thereafter a hole d of small diameter is drilled through the cylindrical part of the block. This hole is enlarged by flame cutting to form the passages e. The valve chamber f and opening g are subsequently formed by flame cutting, and the body brought to the finished flanged form, as shown, by flame cutting and machining as required. The production of other forms of valve, as for example the screw-down valve shown in Fig. 37, are described making use of the same general ...

Procedures for the production one for large armatures intended housing center section for a Schiebergehäuse and a slidegate valve housing center section

EINSPRITZVENTIL, PROCEDURE FOR ITS PRODUCTION AND DEVICE FOR THE EXECUTION OF THE PROCEDURE

SHUT-OFF VALVE

Forging an engine valve system

PROCESS AND DEVICE FOR the REALIZATION Of a SPHERICAL HOLLOW BODY WITHOUT WELDING

MANUFACTURING METHOD FOR METAL SEAL VALVE AND METAL SEAL VALVE THEROF

... 본 발명은 개폐가 용이한 유체 밸브 장치의 제작 방법 및 이에 의하여 제작된 유체 밸브 장치에 관한 것으로, 보다 상세하게는 원자력, 화력 발전소 또는 플랜트 설비 등의 고온, 고압의 유체가 이송되는 배관에 적용되는 메탈 씰 밸브 장치(Metal Seal Valve)에서 밸브 작동을 위하여 90도 회전되는 밸브부와, 밸브부에 밀착되어 기밀성을 유지하는 시트부 표면의 마찰계수를 최소화함으로써, 접촉되는 표면들에서 발생하는 마찰력을 줄여 개폐 동작 시 소요되는 힘을 최소화(저 토크(Low Torque))할 수 있는 개폐가 용이한 유체 밸브 장치의 제작 방법 및 이에 의하여 제작된 유체 밸브 장치에 관한 것이다.

Method of and apparatus for extruding valves and multiflanged pipe fittings

Fuel injector tip with compressive residual stress

Steel rod stock is shaped into a fuel injector tip having a central axis and including a shank extending between a mating end and a nozzle end. An inner surface of the fuel injector tip includes a conical needle valve seat and defines a nozzle chamber and a sac on opposite sides of the needle valve seat. The mating end includes a injector stack surface and an injector body contact surface. After shaping the fuel injector tip, it is a case hardened to a hardness in excess of HRC 55. Next, the nozzle end is shaped, after the case hardening step, to include a plurality of nozzle surfaces that each define one of a plurality of nozzle outlets extending between the sac and the outer surface. The inner surface and the nozzle surfaces are then autofrettaged to induce compressive residual stress at the case hardened needle valve seat, the case hardened sac and at least a portion of the nozzle surfaces closest to the sac.

VACUUM ACTUATED FLUID DELIVERY

The present invention relates to fluid delivery systems comprising valve assemblies that provide for a more stable and reliable delivery system for a fluid, for example a gaseous fluid, from a tank by utilizing vacuum to open the normally closed valves assemblies. The present invention also relates to methods of delivering a fluid from a tank, assembling and operating the valves assemblies, as well as retrofitting existing tanks with such systems.

MANUFACTURE OF FLANGE TYPE BALL VALVE SEAT

PROBLEM TO BE SOLVED: To provide the manufacturing method of a flange type ball valve seat which can reduce a material cost and shorten a manufacturing time and hold the strength of a forged main body. SOLUTION: The proper position of each neck is divided by making the outer look of a general flange type ball valve to a base. In the case of two flanges type ball valve seat, four parts such as a water take in seat 1, a ball valve seat 2, a limit seat 3 and a water take out seat 4 are formed by forging. In two flanges type valve, the water take in seat 1 and ball valve seat 2, the limit seat 3 and water take out seat 4 are welded respectively so as to make right/left main bodies. Center through holes 112, 222, 312, 412 can be formed by forging together. COPYRIGHT: (C)2000,JPO ...

PRODUCTION OF ENGINE VALVE

PURPOSE: To prevent the defective goods from producing by forming a dry film graphite coating agent on an internal wall face of a die and pre-heating the die in the case of using the new hot forging die. CONSTITUTION: An internal wall face 3 of a lower die 2 to co-operate with an upper die 1 is coated with a dry film graphite coating agent 4, the die is pre-heated, an object to be machined is thrown inside the lower die 2 and then it is formed by moving the upper die 1 up and down. After forming, the upper die 1 is raised, next a pusher 5 is raised inside a through hole 6 and the machined object is pushed out at a stroke from the lower die 2. After then, this cycle is repeated, but according to increasing of machining times, the die is made to a high temperature and pre-heating is also made needless. Therefore, galling, face roughing, or biting, etc., are not caused and the machining goods from the 1st time can be used practically. COPYRIGHT: (C)1996,JPO ...

CПOCOБ ИЗГOTOBЛEHИЯ ИЗДEЛИЙ TИПA CTAKAHOB

Geschmiedetes, einteiliges Ventilgehaeuse und Verfahren zu seiner Herstellung

Vorbehandlungsverfahren

Verfahren zum Vorbehandeln eines an einem Düsenkörper (1) einer Kraftstoffeinspritzeinrichtung ausgebildeten Düsennadelsitzes (9), der mit einer Düsennadelspitze (7) zusammenwirkt, um die Einspritzung von Kraftstoff in den Brennraum einer Brennkraftmaschine zu steuern, wobei der Düsennadelsitz (9) mit einem Werkzeug, das im Wesentlichen die Gestalt der Düsennadelspitze (7) aufweist, beaufschlagt wird, um die plastische Verformung vorweg zu nehmen, dadurch gekennzeichnet, dass der Düsennadelsitz (9) gleichzeitig einer erhöhten Temperatur ausgesetzt wird, wobei die Temperatur etwa 200° bis 500°C beträgt und wobei die Kraft, mit der der Düsennadelsitz (9) beaufschlagt wird, etwa 100 bis 1000 Newton beträgt.

VERFAHREN ZUR HERSTELLUNG VON EINSTUECKIGEN MEMBRANVENTIL GEHAEUSEN

Making preformed blanks - for subsequent forging to gate valve bodies

Gate valve bodies are drop forged from a blank that has been preformed by some other process such as forging, followed by rolling or expanding, to give the preform the required height and wall thickness. The final body can then be bored through for pipe connections to be welded on and seatings inserted inside. The process allows the mfr. of valve bodies normally difficult to drop forge direct if the dia. is less than the height.

Ventilation vavle

Quick-coupling component with pressure reduction member

Improvements connected with valve seats for internal-combustion and other engines

... 380,195. Cylinders. WASTIE, C. R., 42, Chiltern Avenue, Bushey, Hertfordshire, and SCAMMELL LORRIES, Ltd., 52, High Holborn, London. July 10, 1931, No. 19886. [Class 7 (ii).] A valve-seating ring 1 is locked in a recess in a cylinder by a deformable conical ring 8 which is engaged by grooves 3, 11 and deformed when the ring 1 is pressed home so that it becomes flat as shown, or its conicity is reversed. The ring 8 is made of mild steel or aluminium and the ring 1 of centrifugally-cast iron.

Improvements in or relating to valves for controlling the passage of fluids

... A method of making valve seatings consists in charging the undercut, annular recess 5, Fig. 3, in each of a number of mounts 3, with powdered synthetic resin and placing the mounts on a conveyer belt 1, Fig. 2, which is moved intermittently to bring the mounts in turn between electrodes 7 of a low-voltage, high-amperage, alternating current supply, by which the resin is rendered fluent. The fluent mass may be pressed into the recess by a plunger 8 disposed above the conveyer. In a modification, the resin is formed into a solid ring which is placed in the recess prior to heating. In another arrangement, the resin may be heated to the fluent state before being charged into the recesses. Preferred materials are the thermoplastic vinyl resins, especially polythene, polystyrene, or acrylic resins, but thermosetting resins of the phenol-formaldehyde, urea-formaldehyde or phenolic-furfural types may be used.

SHUT-OFF VALVE

METHOD FOR MANUFACTURING A BLOCK FORGED VALVE BODY WITH A FULLY ENCAPSULATED SEAT RING

A block forged valve body includes a fully encapsulated seat ring. The valve body includes a through hole and a chamber having a shelf portion that overlies an annular shoulder that encapsulates the valve seat. Methods for the manufacturing and use thereof are also provided.

Manufactoring process of hollow body of all non-ferrous metal species, like hollow body manufactured according to this process

Process for the manufacture of taps for tap and water pipelines thus produced

ACTUATOR, VALVE AND METHOD

An actuator or valve includes an inner member; an outer member around the normally rotatable inner member; the inner member including normally two spaced apart outwardly extending projections abutting with the outer member; the outer member including normally two inwardly extending projections abutting with the inner member, the projections defining a chamber therebetween; and the actuator further including a fluid port in communication with the chamber. The actuator/valve is normally made by straight profile cutting. The compact rotary actuator may be remotely operated.

MANUFACTURE OF BALL FOR VALVE

PURPOSE: To obtain a ball for a valve forming an engaging groove at the outer periphery in a simple process and at high yield. CONSTITUTION: A cylindrical blank 20 is press-formed to form a recessed part 21 at a part of the outer periphery. Successively, the blank 20 is sphered by cold-forging and the recessed part 21 is formed to the engaging groove 22. Therefore, as the formations of sphering and engaging groove 22 of the blank 20 are executed by plastic-working without machining, the product ball 23 is obtd. in the simple process at the high yield. COPYRIGHT: (C)1995,JPO ...

EXHAUST VALVE OF DIESEL ENGINE FOR LARGE SHIP, AND MANUFACTURING METHOD OF THE EXHAUST VALVE

PROBLEM TO BE SOLVED: To reduce the size of a manufacturing facility and to improve utilization factor of a material, in the manufacturing the exhaust valve of a diesel engine for a large ship. SOLUTION: The valve 1 is formed by separately manufacturing an umbrella part 2 and a stem part 3 and integrating them through flash-butt welding. The umbrella part 1 is made of a nickel-based heat-resistant alloy of precipitation hardening type and is forge molded. COPYRIGHT: (C)2003,JPO ...

Motoranordnung mit Ventilsitzentlüftungsdurchgängen und Verfahren zur Herstellung derselben

Motoranordnung, welche umfasst: einen Motorblock, der eine Zylinderbohrung definiert; einen Zylinderkopf, der an dem Motorblock befestigt ist und einen Ansaugkanal mit einem Einlass in fluidtechnischer Verbindung mit einer Luftquelle und einem Auslass in fluidtechnischer Verbindung mit der Zylinderbohrung umfasst, wobei der Ansaugkanal einen Ventilsitz an dem Auslass davon definiert und einen stufenartigen Bereich umfasst, wobei der stufenartige Bereich eine Auflagefläche definiert, die sich von dem Ansaugkanal radial nach außen erstreckt, wobei die Auflagefläche eine Reihe von Vorsprüngen umfasst, die voneinander in Umfangsrichtung um den Auslass herum beabstandet sind und eine Reihe von Vertiefungen dazwischen bilden; und einen Ventilsitzring, der innerhalb des stufenartigen Bereichs angeordnet ist und eine erste axiale Stirnfläche umfasst, welche an den Vorsprüngen an der Auflagefläche anliegt, wobei der Ventilsitzring und der Ansaugkanal eine ringförmige Vertiefung definieren, die radial ...

Membranventile mit zusammengesetzten Gehaeusen und Verfahren fuer deren serienmaessige Fertigung

MANUFACTURE OF SEAMLESS BALL HOUSINGS

Manufacture of seamless ball housings

A tubular blank is held in a bed, heated on one end, which is then rolled into a semisphere with an integral nipple; an adjacent portion of the blank is subsequently heated and stretch-formed by rolling to obtain a spherical continuation of the semisphere, being continued in a cylindrical portion, preferably with a stepped-down section. The remainder of the blank is then cut off.

A new or improved method of and means for securing valve seats in internal combustion engines

... 390,744. Cylinders. OURBRIDGE, W. A., Parklands, Park Road, Coventry. Oct. 13, 1932, No. 28547. [Class 7 (ii).] A valve seating-ring c is secured in a recess a by a split ring b of ductile metal having a flange b<1> which is first forced into a slot a<1> in the recess ; after insertion of the ring c the upper edge of the ring b is rolled into the reduced part c<1> of the ring c, which in a driving fit in the lower part of the recess and slightly greater in diameter than the internal diameter of the split ring b.

Forging forming mold of flange ball valve forged piece and forming method

PRELIMINARY PROCESS OF TREATMENT Of an INJECTOR AND INJECTOR THUS OBTAINED

Spherical nut manufactured without production of chips, for stop valves

System of tools acting by pressure for the production of drops forging or stamped by coring

ENGINE VALVE SEAT AND A MANUFACTURING METHOD THEREOF, CAPABLE OF REDUCING ABRASION OF A VALVE

PURPOSE: An engine valve seat and a manufacturing method thereof are provided to include excellent abrasion resistance and to improve the abrasion resistance by including a matrix of iron powder in which chrome, molybdenum and so on are alloyed. CONSTITUTION: An engine valve seat comprises iron which is main component, 0.6-1.2 wt% of carbon, 1.0-3.0 wt% of nickel, 8.0-11.0 wt% of cobalt, 3.0-6.0 wt% of chrome, 4.0-7.0 wt% of molybdenum, 0.5-2.5 wt% of tungsten, 1.0-3.0 wt% of manganese, 0.2-1.0 wt% of calcium and other impurities. COPYRIGHT KIPO 2013 ...

COOLING METHOD AND DEVICE FOR FORGING VALVE

Provided are a cooling method and device for a forging valve that have superior cooling capacity and can greatly reduce cycle time. A forged valve (1) brought in and mounted on a water-cooled, level straight line shaped valve transport path (22A) such that an umbrella front surface (1a1) is in contact with the same is moved smoothly a prescribed distance forward by a valve transport mechanism (20A) while the valve (1) that was previously moved is moved forward smoothly a prescribed distance, thereby intermittently transporting the valve aligned in a row at the prescribed distance while the umbrella front surface (1a1) is kept in a state of contact with the valve transport path (22A) in conjunction with the operation of bringing in the valve (1). The valve is cooled during the above process.

UNITIZED VALVE SEAT ASSEMBLY

A valve seat assembly including a housing having a cavity and a puck located in the cavity and connected to the housing. The puck having a greater hardness than the housing.

Electronically controlled valve and systems containing same

Disclosed herein is a controlled valve. The valve includes a valve body, a sleeve, a spool, and a valve actuator assembly. The valve body includes a cavity and a first chamber. The sleeve is between the cavity and the first chamber. The sleeve includes an inner bore and at least one opening. The inner bore extends from a first end to a second end of the sleeve. The at least one opening extends through the second end of the sleeve. A portion of the inner bore forms a second chamber. The spool is movably disposed within the inner bore. The valve actuator assembly is connected to the spool. The first chamber is in fluid communication with the second chamber through the at least one opening. The spool is configured to be movable over at least a portion of the at least one opening to regulate fluid flow therethrough.

MAGNETIC MICROVALVE USING METAL BALL AND METHOD OF MANUFACTURING THE SAME

There is provided a magnetic microvalve using a metal ball and a method of manufacturing the same. A magnetic microvalve using a metal ball according to an aspect of the invention may include: an upper substrate having a microchannel serving as a passage through which a fluid moves, a fluid inlet through which the fluid flows into the microchannel, and a fluid outlet through which the fluid, having passed through the microchannel, flows out of the microchannel; a lower substrate having a trench locally provided therein; a PDMS/metal ball combination having a metal ball and PDMS surrounding the metal ball so that the metal ball is located in a central portion thereof, the PDMS/metal ball combination being inserted into the trench provided in the lower substrate; and a magnet located above the microchannel, provided in the upper substrate, and generating magnetic force.

Method for making stop cocks

FORMING METHOD OF BALL SHAPED MEMBER OF BALL VALVE

PROBLEM TO BE SOLVED: To reduce a working cost by forming a ball shell body having circular openings at the both sides and an engaging slot to its outer peripheral face by press-working a circular tube stock, welding and fixing a tube body between the circular opening of the shell body and forming a ball shaped member in which the inside is hollow. SOLUTION: A ball shell body 10 having circular openings 12 by press- working the both ends of a tube stock with two forming dies, which can join facing to each other and have respectively semi-spherical recessed cavities/ circular blocks on the joining faces, is formed. The diameter of the tube stock is approximately same as the diameter of the ball shell body 10, the length of the tube stock is preferably 1.1 times of a flow passage between the circular openings 12. A slot 14 to which a valve rod is mounted, is formed on the outer peripheral face of the ball shell body 10. A tube body 20 having the length of a flow passage inside the ball shell ...

Устройство для прошивки отверстий

Способ изготовления биметаллических тарельчатых клапанов

... 1. СПОСОБ ИЗГОТОВЛЕНИЯ БИМЕТАЛЛИЧЕСКИХ ТАРЕЛЬЧАТЫХ КЛАПАНОВ, включающий операции получения Заготовки наружного слоя, горячей штамповки и введения в нее материала внутреннего слоя, отличающийся тем, что, с целью снижения трудоемкости процесса, заготовку наружного слоя изготавливают состоящей из двух отдельных частей, в каждой из них выполняют полость под материал, внутреннего слоя, после чего в полость части заготовки, предназначенной для выполнения тарелки клапана, вводят материал внутреннего слоя и соединяют обе части заготовки наружного слоя, а горячую штамповку проводят после получения сборной заготовки . 2. Способ ПОП.1, отличаюс SS щийся тем, что, с целью повьшения эксплуатационных свойств клапа (Л нов, полость в части заготовки наружного слоя под тарелку клапана выполняют Т-образного профиля в осевом сечении.

Steel housing for high security risk areas - with welded seams accessible to ultrasonic checks during operation

Large pipe fittings for high security risk areas, such as gate valve housings for nuclear power stations for pipes of up to 1000mm. dia. are mfd. by hot extrusion of the housing from a steel billet. A through bore is machined and its edges are upset by a three-roller expander so that straight tube ends can be welded on. The welds are thus purely circular and accessible to ultrasonic tests during operation. The mfg. costs are much less than machining a housing out of solid steel.

Verfahren zur Herstellung des Armaturengehäuses eines Absperrschiebers

Verbinden von Ringen mit Ventilkoerpern

Absperrschieber-Armatur

Method and means of making valve bodies

... 1,018,018. Producing valve bodies; tubeexpanders; stamping. GRINNELL CORPORATION. May 6, 1964 [May 6, 1963], No. 18917/64. Headings B3A, B3E, B3J and B3Q. In a method of forming a valve body from a metal cylinder, a piece of heated tubing 100 is held in die parts 110, 112, which may be heated, and plugs 120 are inserted in either end of the tubing (Figs. 10, 11, not shown). Between the plugs 120 lies a cylindrical member 128 positioned opposite a hole in the tubing wall. The member 128 is connected to a guide 136, which is connected to a press part capable of pulling the member 128 upwardly to form an enlarged hole having a lip 138 (Figs. 12 to 15, not shown). Simultaneously a die component 140 engages the tubing to form the weir 18 (Fig. 1). The guide 136, member 128 and guiding sleeve 126 therefor are withdrawn except for a loose split ring 146 at the bottom of the sleeve 126 (Fig. 16, not shown). A further tool 147 is inserted, the lower end part 148 of which fits over the formed weir ...

Quick-coupling component with pressure reduction member

Casings for Fluid Control Valves.

... 1,180,029. Making valve casings; angular bending; straightening; stamping; welding by fusion. SAUNDERS VALVE CO. Ltd. 28 June, 1967 [4 July, 1966], No. 29913/66. Headings B3A, B3E, B3Q and B3R. [Also in Division F2] In a method of making a casing for a fluid control valve having a bore which is at least substantially straight through and having a seating formed by an inward taper from an opening on one side and a clamping flange bounding the opening, comprises machining a piece of tube of wrought metal from one side to a dimension to receive the flange and to a depth to form a longitudinal slot in the tube side, applying outward pressure at the mid-length of the slot to open out the sides of the tube, applying further pressure finally to shape the side opening and inward taper, indenting the tube on the side opposite the opening, and welding the clamping flange to the tube. The slotted tube, which may be of stainless steel, is mounted in a fixture comprising a V-block 15 and two end clamps ...

METHOD OF FORMING HEAD MEMBER HAVING INTEGRAL VALVE SEATS FOR REED VALVE

METHOD FOR PROVIDING AN ARMATURE HOUSING

The invention relates to a method of providing an armature housing having the steps of providing a solid cylinder of malleable material having a first part and a second part; raising at least a part of a perimeter of the first part in a direction away from the second part for defining a raised wall; compressing the second part in an axial direction toward the first part, resulting in a flattened disc generally perpendicular to the first part; and wherein the first part, second part, and at least part of the perimeter are all integrally connected as a single piece.

Thin-wall stainless steel changeover valve body forging process and mould structure

Manufactoring process of seats of valves called to direct passage

METHOD FOR PRODUCING A VALVE SEAT AND A CAP TOOL IN THE SPINDLE OF THE ARMATURE OF A VALVE

Procédé et dispositif pour la réalisation d'un corps creux sphérique sans soudure.

On part d'une ébauche tubulaire 5 montée à rotation dans des poupées 2 et 3 convenablement entraînées, on y engage une tige 8 portant en bout un mandrin sphérique 9 prolongé par un goujon 10 engagé dans une pièce tournante 11. On chauffe par une bobine inductrice 20, puis on refoule l'extrémité de 5 sur 9 par l'outil 21 en obtenant ainsi un hémisphère. On retire la tige 8, on en enlève 9, on la réintroduit en place, on retourne la tête revolver 12 pour présenter la cupule tournante 15 qui reçoit l'hémisphère conformé, on chauffe à nouveau par 20' et l'on rétreint 5 sur 8 par l'outil 21 dont le profil 21 permet d'obtenir le second hémisphère. Application à la fabrication de corps de vanne haute pression.

Check Valve Unit For Solid Ink Reservoir System

A check valve unit is provided for a high-speed phase change ink image producing machine between a reservoir for receiving and holding a volume of melted ink from a source and a receiving unit, which may be a printhead system. The check valve unit includes a plurality of ball elements trapped between upper and lower housings defining a like plurality of inlet and discharge passageways. The passageways are configured to optimize flow of melted ink through the unit during charging of the secondary reservoir. The check valve unit is scalable as to size and number of reservoirs for a particular application. The unit further incorporates features that simplify the manufacturing and assembly process while maintaining optimal performance.

PISTON BORES AND METHODS OF MANUFACTURING PISTON BORES FOR A SERIES PROGRESSIVE DIVIDER VALVE

A series progressive divider valve comprises a valve body and pistons. The valve body comprises a fluid inlet, piston bores, outlet bores and porting. The fluid inlet extends into an exterior of the valve body. The piston bores extend through the valve body from a first end to a second end, wherein the piston bores are arranged along a first circular path intersecting each of the piston bores. Each piston bore includes a piston. The outlet bores extend into the valve body, and each outlet bore comprises a first set of outlet bores, and a second set of outlet bores. The porting forms a plurality passageways connecting the piston bores to each other and with the outlet bores such that when high pressure fluid is applied to the inlet each of the pistons reciprocates from the first end to the second end in sequence. 1. A series progressive divider valve comprising: a fluid inlet extending into an exterior of the valve body;', 'a plurality of piston bores extending through the valve body from a first end to a second end, wherein the piston bores are arranged along a first circular path intersecting each of the piston bores, each piston bore including a piston;', a first set of outlet bores; and', 'a second set of outlet bores; and, 'a plurality of outlet bores extending into the valve body, the plurality of outlet bores comprising, 'porting forming a plurality passageways connecting the piston bores to each other and with the plurality of outlet bores such that when high pressure fluid is applied to the inlet each of the pistons reciprocates from the first end to the second end in sequence., 'a valve body comprising2. The series progressive divider valve of wherein:the valve body comprises a parallelepiped block formed from a single piece of material and having a plurality of faces;wherein each of the plurality of piston bores extends between a first pair of opposing faces and the first circular path extends in a plane parallel to the first pair of faces; andwherein the ...

TOOL FOR ATTACHING VALVE KEYS TO THE VALVE OF THE ENGINE

A tool for attaching valve keys to a valve stem includes an elongated holder with a longitudinal axis, an inner hollow space and an end opening. An elongated core is arranged in the hollow space of the holder coaxially to the longitudinal axis. An elongated recess for receiving a substantial upper portion of the valve stem is provided in the end region of the core coaxially to the longitudinal axis. The recess of the core issues into the end opening and has a depth which is greater than or at least equal to the axial distance between the end and the annular groove of the valve stem. The core at least partially covers the annular groove, such that the valve keys can be supplied to the lateral surface of a valve stem underneath the annular groove and incorrect engagement can be avoided. 117-. (canceled)18. A tool for fitting valve keys to a valve of an engine , the engine having a valve stem with an upper end and at least one annular groove for fixing the valve keys , the tool comprising:an elongate holder with a longitudinal axis, an inner cavity and an end opening through which the upper end of the valve stem can be introduced into a hollow cavity in a holder;an elongate core arranged in the hollow cavity in the holder coaxially with the longitudinal axis and having an end region accessible through the end opening; andat least one transport passage extending in a direction of the longitudinal axis externally on the core and to before the end region of the core for feeding valve keys to a valve,wherein the at least one transport passage is laterally delimited at least partially by a guide jaw arranged moveably relative to the holder and at least partially by the elongate core which is fixed immovably in the hollow space in the holder, andwherein an elongate recess is provided in the end region of the core coaxially with the longitudinal axis for receiving a substantial upper portion of the valve stem, wherein the recess of the core opens into the end opening and is ...

Pipetting Apparatus and Method for Production Thereof

The invention relates to a pipetting apparatus, in particular for pipetting a fluid sample by aspiration into a pipetting container by means of air under a pipetting pressure, said pipetting apparatus comprising: a valve arrangement having at least one valve device for setting a pipetting pressure, wherein the valve device comprises a valve chamber; at least one pump device, which is connected to the valve chamber to generate a chamber pressure in the valve chamber; a pipetting channel, to which the pipetting container can be connected, and; a bypass channel, which is open to the surrounding environment; wherein the pipetting channel and the bypass channel are each connected to the valve chamber; and wherein the at least one valve device is designed such that, to generate the desired pipetting pressure in the pipetting channel, the chamber pressure is distributed in a metered manner by the valve device between the pipetting channel and the bypass channel. The invention further relates to a method for producing this pipetting apparatus. 11999ab. Pipetting apparatus () , in particular for pipetting a fluid sample () by aspiration into a pipetting container () by means of air () under a pipetting pressure , said pipetting apparatus comprising the following{'b': 10', '100', '200', '101', '102', '101', '106', '106', '106, 'a valve arrangement (; ; ) having at least one valve device (; ; ″) for setting a pipetting pressure, wherein the valve device comprises a valve chamber (; ′; ″);'}{'b': '7', 'at least one pump device (), which is connected to the valve chamber to generate a chamber pressure in the valve chamber;'}{'b': 103', '103, 'a pipetting channel (; ″), to which the pipetting container can be connected, and'}{'b': 104', '104, 'a bypass channel (; ″), which is open to the surrounding environment;'}wherein the pipetting channel and the bypass channel are each connected to the valve chamber;and wherein the at least one valve device is designed such that, to generate ...

Pump System for Food Machine

Dual foods pump arrangement that includes a pump manifold, two food pumps, and a rotary valve element removably located within the manifold. The rotary valve element is operated to selectively direct the flow of food product from the two food pumps in alternating fashion through a single manifold outlet. The food pumps are driven by servo actuated cylinders. A tool is provided for lifting the valve element from the manifold that includes a pivotal removal bar that can be attached to a top of the valve element. 1. A tool for lifting a valve element from a manifold , comprising:a removal bar having a base end pivotally connected with respect to the manifold and a distal end opposite the base end, and a vertical removal rod, the removal bar has a longitudinal slot between the base and distal ends through which the vertical removal rod is passed;the vertical removal rod has a handle portion which does not pass through the longitudinal slot due to its larger size;the rest of the vertical removal rod is passed through the longitudinal slot and fastened to a top of a valve element;once the vertical removal rod is secured to the top of the valve element, the user raises the distal end of the removal bar to lift up the valve element from its position within the manifold.2. The tool according to claim 1 , wherein as the removal bar is lifted claim 1 , the rotational motion is translated to a vertical lifting motion by the sliding movement of the vertical removal rod within the longitudinal slot.3. A dual food pump arrangement comprising:a pump manifold having a first manifold inlet, a second manifold inlet, and a manifold outlet, said manifold outlet being a single nozzle;a first food pump within a first pump cavity and a second food pump within a second pump cavity, the first pump cavity having a first outlet open into the first manifold inlet and the second pump cavity having a second outlet open into the second manifold inlet;a rotary valve element disposed within the pump ...

Casting Machine Valve

The invention relates to a valve flap () for producing a casting machine valve (), in particular for installing into a casting machine for casting a flowable substance, in particular a liquid substance with suspended solid particles, such as chocolate for example, in which cocoa particles and sugar particles are typically suspended in a molten fatty substance that has cocoa butter and milk fat to a greater or lesser extent. The valve flap is designed such that a valve can be produced with at least one other valve element, said valve consisting in particular of at least two valve flaps () that are preferably identical. 118-. (canceled)19. A valve flap for a valve for installation in a casting machine , wherein the valve flap is designed such that , with at least one further valve element a valve can be formed.20. The valve flap as claimed in claim 19 , whereinthe valve flap is designed such that a valve can be formed made up of at least two similar valve flaps.21. The valve flap as claimed in claim 19 , whereinthe valve flap has at least one flap region.22. The valve flap as claimed in claim 21 , whereinthe valve flap has a neck region.23. The valve flap as claimed in claim 19 , whereinthe valve flap is geometrically overdetermined.24. The valve flap as claimed in claim 23 , whereinthe valve flap has at least one flap region and the flap region is geometrically overdetermined.25. The valve flap as claimed in claim 19 , whereinthe valve flap has at least one cutting lip which in the mounted state, with the valve closed, overlaps or underlaps an adjacent valve element.26. The valve flap as claimed in claim 25 , whereinthe valve flap has at least one flap region and the valve flap has at least one cutting lip in the flap region.27. The valve flap as claimed in claim 19 , whereinthe valve flaps are realized at the marginal regions such that they fit, in the mounted state, sealingly onto adjacent valve flaps.28. The valve flap as claimed in claim 27 , whereinthe valve ...

METHOD FOR MANUFACTURING HOLLOW ENGINE VALVE

A method for manufacturing a hollow engine valve includes a step for performing rotational plastic working on a follow engine valve body semifinished product which is configured from a shaft part and a valve umbrella part forming portion connected to the shaft part. A columnar hole part is formed from the shaft part to an enlarged diameter section of the valve umbrella part forming portion to thereby reduce the diameter of the shaft part. A necking step follows the rotational plastic working step, necking the hollow engine valve body semifinished product to thereby reduce the outer diameter and the inner diameter of the shaft part. A sealing step seals the leading end of the shaft part to obtain the hollow engine valve. 1. A method for manufacturing a hollow engine valve having a hollow portion formed from a stem part to a widening portion of a valve head part , characterized in that the method comprises:a first rotary plastic working step of performing rotary plastic working on a semifinished hollow engine valve body which includes a stem part and a valve head part forming part connected to the stem part, to thereby narrow the stem part, the semifinished hollow engine valve body having a columnar hole portion formed from the stem part to a widening portion of the valve head part forming part;a necking step of, after the first rotary plastic working step, performing necking on the semifinished hollow engine valve body to thereby reduce an outer diameter and an inner diameter of the stem part, the necking using as many dies as the number of narrowing operations to thereby narrow the widening portion of the valve head part forming part and the stem part of the semifinished hollow engine valve body stepwisely, the dies being configured to press the widening portion and the stem part and having die holes with inner diameters decreasing slightly and successively according to a sequence of the operations; anda sealing step of, after the necking step, sealing a tip of the ...

METHOD FOR MANUFACTURING VALVE TRAIN PARTS USING METAL POWDER INJECTION MOLDING

Disclosed is a method for manufacturing a plurality of valve train parts using metal powder injection molding, comprising: obtaining a raw material for injection molding by mixing a metal powder and a binder; forming a formed body by injecting the obtained raw material for injection molding into a mold of a valve train part shape; solvent extracting the formed body; forming a sintered body by debinding and sintering the solvent extracted formed body; sizing processing the sintered body; vacuum carburizing the sizing processed sintered body; and polishing the vacuum carburized sintered body. 1. A method for manufacturing a plurality of valve train parts using a metal powder injection molding comprising:obtaining a raw material for injection molding by mixing a metal powder and a binder;forming a formed body by injecting the obtained raw material for injection molding into a mold of a valve train part shape;solvent extracting the formed body;forming a sintered body by debinding and sintering the solvent extracted formed body;sizing processing the sintered body;vacuum carburizing the sizing processed sintered body; andpolishing the vacuum carburized sintered body.2. The method for manufacturing the plurality of valve train parts using metal powder injection molding according to claim 1 , wherein claim 1 , in obtaining the raw material for injection molding claim 1 , the metal powder of about 93% by weight and the binder of about 7% by weight is mixed.3. The method for manufacturing the plurality of valve train parts using metal powder injection molding according to claim 2 , wherein the metal powder comprises: nickel (Ni) about 2% by weight claim 2 , molybdenum (Mo) about 0.5% by weight claim 2 , carbon (C) about 0.25% by weight and the remaining percent by weight of iron (Fe) of the entire composition.4. The method for manufacturing the plurality of valve train parts using metal powder injection molding according to claim 1 , wherein claim 1 , in forming a sintered ...

REBUILDABLE MICRO-FLUIDIC VALVE ASSEMBLY

A multi-position valve assembly including a valve housing, a stator element and a rotor element rotatably mounted about a rotational axis. The valve assembly further includes a pressure adjustment assembly movable between a release position and a stop position, hard stopped relative to the valve housing. The pressure adjustment assembly includes a pressure adjuster device configured to movably cooperate between the rotor element and the valve housing to adjustably generate an axial compression pressure at the rotor-stator interface at a calibrated operating pressure, P. When the pressure adjustment assembly is oriented in the release position, the axial compression pressure is substantially removed from the rotor-stator interface. In contrast, when the pressure adjustment assembly is oriented in the stop position, the axial compression pressure is substantially reproduced at the calibrated operating pressure, P. 1. A method of rebuilding a high pressure , multi-position shear valve assembly having a valve housing and a plurality of serviceable valve components including a stator element defining a stator face and a rotor element rotatably mounted about a rotational axis , said rotor element defining a rotor face disposed opposite said stator face , at a rotor-stator interface , said valve assembly further including a pressure adjuster assembly selectively generating an axial compression pressure between the stator face and the rotor face at a calibrated operating pressure , P , to enable fluid-tight , selective relative rotation between the rotor face and the stator face between two or more rotor positions , said method comprising:substantially removing the axial compression pressure at the rotor-stator interface;disassembling the stator element and the rotor element from opposed contact with one another;replacing one or more serviceable valve components;reassembling the rotor element and stator element back into opposed contact with one another;{'sub': 'C', ' ...

SOLENOID VALVE AND METHOD FOR PRODUCING SOLENOID VALVES

A solenoid valve for metering a fluid into an intake tract () of an engine, said solenoid valve comprising a solenoid assembly (), an armature () interacting with the solenoid assembly () and a stroke-movable valve disc () connected to the armature () for opening and closing at least one through-flow aperture () formed in a valve plate ().

METHOD OF MANUFACTURING AN ECCENTRIC VALVE

Provided is a method of manufacturing an eccentric valve of a tri-offset structure including a valve body, a valve seat, a valve unit, and a valve stem. The method includes steps of providing a seal being a centrosymmetric ring with an outer edge surface being a cambered surface with a fixed curvature; disposing the seal on an annular surface of the valve unit; enabling the disposal position of the seal on the annular surface to deviate from the disposal position of a pair of second shaft holes provided in a longitudinal direction of the valve unit. 1. A method of manufacturing an eccentric valve , comprising:providing a valve body having a through hole disposed at center in an axial direction, and a first shaft hole disposed in a longitudinal direction to pass through the through hole, a centerline of the first shaft hole deviating from a center of the through hole, the axial direction being perpendicular to the longitudinal direction;providing a ring-shaped valve seat having an inner edge surface thereof consisting a part of a tapered face of an oblique cone, the valve seat having a thickness in the axial direction;accommodating the valve seat in the through hole and disposing the valve seat in the valve body, enabling a peak of the oblique cone to offset from a first axial centerline passing through the center of the through hole, and enabling the accommodated position of the valve seat to deviate from the position of the first shaft hole;providing a disc-shaped valve unit having an annular surface and a pair of second shaft holes provided in the longitudinal direction of the valve unit;providing a seal which is a centrosymmetric ring, an outer edge surface thereof being a cambered surface with a fixed curvature; disposing the seal on the annular surface of the valve unit, enabling the disposal position of the seal on the annular surface to deviate from the disposal position of the pair of second shaft holes;accommodating the valve unit in the through hole and ...

BUTTERFLY VALVE AND METHOD OF MANUFACTURING THE SAME

The butterfly valve comprises a body in which an inserting space is formed; and a disk inserted into the inserting space of the body, wherein fluid flow is opened or closed in response to rotation of the disk, wherein the disk further includes: a disk body formed of a metal; a first plastic layer formed of a first plastic on the disk body; a second plastic layer formed of a second plastic on the first plastic layer, wherein a melting point of the first plastic layer is different from a melting point of the second plastic layer, and the disk body is formed of a framework structure having an internal space. 1. A butterfly valve comprising:a body in which an inserting space is formed; anda disk inserted into the inserting space of the body,wherein fluid flow is opened or closed in response to rotation of the disk, a disk body formed of a metal;', 'a first plastic layer formed of a first plastic on the disk body;', 'a second plastic layer formed of a second plastic on the first plastic layer,', 'wherein a melting point of the first plastic layer is different from a melting point of the second plastic layer, and', 'the disk body is formed of a framework structure having an internal space., 'wherein the disk further includes2. The butterfly valve of claim 1 , the disk body is not exposed outside according as the first plastic layer or the second plastic layer covers whole of the disk body.3. A fluid contacting member contacted with a fluid in a valve claim 1 , the fluid contacting member comprising:a body formed of a metal and manufactured by using a mechanical processing;a first plastic layer formed on the body and formed of a first plastic; anda second plastic layer formed on the first plastic layer and formed of a second plastic,wherein the plastic layers are formed through an insert molding, a melting point of the first plastic is different from a melting point of the second plastic, and the body is formed of a framework structure having an internal space. This ...

BUTTERFLY VALVE AND METHOD OF MANUFACTURING THE SAME

A body covering a disk in a butterfly valve comprises: an upper body; and a lower body, wherein an inserting space is formed by combining the upper body with the lower body, the disk is inserted into the inserting space, and at least one of the upper body and the lower body includes a framework formed of a metal and a plastic layer formed on the framework. 1. A body covering a disk in a butterfly valve , the body comprising:an upper body; anda lower body,wherein an inserting space is formed by combining the upper body with the lower body,the disk is inserted into the inserting space, and at least one of the upper body and the lower body includes a framework formed of a metal and a plastic layer formed on the framework.2. The body of claim 1 , wherein the framework of the upper body is included in the plastic layer of the upper body claim 1 , the framework of the lower body is included in the plastic layer of the lower body claim 1 ,the framework of the upper body is separable from the framework of the lower body,a bottom member is respectively formed at an end part of the framework of the upper body and an end part of the framework of the lower body, and the framework of the upper body and the framework of the lower body are combined through the bottom members. This application is a continuation application of U.S. application Ser. No. 16/659,489, which was filed on Oct. 21, 2019, and which is a continuation application of U.S. application Ser. No. 16/659,489, which was filed on Oct. 21, 2019, and which is a continuation application of PCT application filed on Jan. 23, 2019 and assigned Serial No. PCT/KR2019/000975, and which claims priority from Korean Patent Application No. 10-2018-0048160 filed with the Korean Intellectual Property Office on Apr. 25, 2018, Korean Patent Application No. 10-2018-0167205 filed with the Korean Intellectual Property Office on Dec. 21, 2018, Korean Patent Application No. 10-2018-0167458 filed with the Korean Intellectual Property ...

CONTACT TRAY FOR A MASS TRANSFER COLUMN AND METHOD INVOLVING SAME

A fixed valve contact tray for use in a mass transfer or heat exchange column and having a plurality of fixed valves distributed across a tray deck of the contact tray. Each of the fixed valves has a valve cover that is wider than and extends outwardly beyond an underlying opening in the tray deck, a perimeter region of the valve cover that is beveled downwardly, and a boundary region of the opening that is raised above a plane of the tray deck. 1. A contact tray for use in a mass transfer column , said contact tray comprising:a generally planar tray deck; anda plurality of fixed valves distributed across the tray deck, each of said fixed valves comprising an opening that extends through the tray deck to allow for passage of fluid through the tray deck and a valve cover supported by attachment legs at a fixed location above said opening, said attachment legs having lower ends that are integral with the tray deck,wherein said valve cover and at least a portion of said attachment legs extend outwardly beyond an outer perimeter of the underlying opening.2. The contact tray as set forth in claim 1 , wherein said attachment legs are inclined.3. The contact tray as set forth in claim 1 , wherein said attachment legs comprise first and second attachment legs aligned at opposite ends of said valve cover.4. The contract tray as set forth in claim 1 , wherein said valve cover is circular.5. The contact tray as set forth in claim 1 , wherein said valve cover has a centrally-positioned protrusion extending downwardly from an undersurface of the valve cover.6. The contact tray as set forth in claim 1 , wherein said valve cover has a beveled outer perimeter.7. The contact tray as set forth in claim 1 , wherein said attachment legs comprise first and second attachment legs aligned at opposite ends of said valve cover and wherein both of said first and second attachment legs have a width less than that of the valve cover.8. The contact tray as set forth in claim 7 , wherein one of ...

METHOD OF REBUILDING SOLENOIDS FOR AUTOMATIC TRANSMISSIONS

A method of rebuilding a solenoid for use in automatic transmissions is disclosed. In one embodiment, an improvement over the original equipment design allows for increased durability of the solenoid. In another embodiment, a lower cost method is disclosed for reusing an expensive component. In either case, various components within the solenoid are reused, reconditioned or replaced. A preferred process for disassembling the solenoid is also disclosed. 119-. (canceled)20. A method for restoring a used solenoid and valve assembly from an automatic transmission , comprising:providing a new bushing, and a used solenoid assembly including a solenoid housing connected to a valve housing, the solenoid housing holding within it an electromagnetic actuator supported by a used bushing, the valve housing holding within it a spool valve movable by the actuator along an axis;testing the hydraulic characteristics of the used solenoid assembly by applying a range of electrical currents to the solenoid to move the spool valve within a range of positions;comparing the tested hydraulic characteristics to OEM hydraulic characteristics;removing the used bushing;installing a new bushing after said removing; andretesting the hydraulic characteristics of the used solenoid assembly with the new bushing by applying the range of electrical currents to the solenoid to move the spool valve within a range of positions.21. The method of wherein the member is a set screw.22. The method of wherein said testing is of the pressure drop of the solenoid assembly as a function of electrical current.23. The method of wherein said testing is of the of the fluid flow of the solenoid assembly as a function of electrical current.24. The method of wherein said providing includes the used bushing supported by a used member claim 20 , said removing the used bushing is from the used member claim 20 , and said installing a new bushing is into the used member.25. A method for restoring a used solenoid and valve ...

VALVE BODY OF A PNEUMATIC VALVE WITH SEALING RING SEATS

A valve body () of a pneumatic valve () includes a transversal compartment () for a shaft or spool () accessible according to an insertion direction (IN) for the insertion of annular gaskets () for the seal with the shaft (). The transversal compartment () has a downward support surface () for a downward gasket (), and an upward support surface () for an upward gasket (). The diameter of the upward support surface () is greater than the diameter of the downward support surface () for a convenient insertion of the downward gasket (). 1. A pneumatic valve comprising:a single piece valve body comprising cast, bar processed or molded plastic material;a shaft or spool;at least a downward gasket and an upward gasket, each gasket consisting of a single piece annular gasket;at least one spacer; i) a transversal compartment translatably accommodating the shaft or spool and suitable for insertion of the annular gaskets for sealing with the shaft according to an insertion direction along a transversal axis;', 'ii) at least one inlet duct leading to the transversal compartment by an inlet opening and at least one outlet duct leading to the transversal compartment by an outlet opening, the inlet duct and outlet duct being side-by-side and parallel;', 'iii) wherein, along the insertion direction, downwardly of the outlet opening, the transversal compartment is annularly delimited by a downward support surface suitable for radial containment of the downward gasket, and upwardly of the outlet opening, the transversal compartment is annularly delimited by an upward support surface suitable for radial containment of the upward gasket,', 'iv) and wherein the diameter of the upward support surface is greater than the diameter of the downward support surface for a convenient insertion of the downward gasket;, 'wherein the valve body comprisesthe downward gasket is on the downward support surface and the upward gasket is on the upward support surface, and the upward gasket and the ...

METHOD FOR MANUFACTURING A BLOCK FORGED VALVE BODY WITH A FULLY ENCAPSULATED SEAT RING

A block forged valve body includes a fully encapsulated seat ring. The valve body includes a through hole and a chamber having a shelf portion that overlies an annular shoulder that encapsulates the valve seat. Methods for the manufacturing and use thereof are also provided. 1. A method of manufacturing a valve body comprising:block forging a one-piece body having opposite ends, opposite sides, a top and a bottom;machining a through hole having a first minimum diameter and extending along a first axis between the opposite ends, wherein the through hole defines a flow passageway;machining a chamber having a second minimum diameter and extending downwardly from the top along a second axis, wherein the first and second axes are orthogonal, and wherein the chamber comprises a bottom defined by a floor separating the chamber from the through hole;machining a passageway through the floor between the chamber and the through hole and thereby defining a pair of shelf portions overlying the through hole;machining an annular shoulder having a third minimum diameter greater than the first minimum diameter and extending along the first axis under each of the shelf portions, wherein each of the annular shoulders has a first depth defined under the shelf portion along the first axis, and wherein the annular shoulders are coaxial with the through opening; andinserting a valve seat in each of the annular shoulders, wherein each of the valve seats has a circumferential surface having a second depth, wherein the second depth is between 100 and 135% of the first depth, and wherein the valve seats each have a front side facing each other and a backside facing away from each other; andsecuring the valve seat in the annular shoulder such that the valve seat is not moveable along the first axis.2. The method of wherein block forging the one-piece body comprises block forging a rectangular prism.3. The method of wherein securing the valve seat in the annular shoulder further comprises ...

Butterfly valves

A lightweight butterfly valve having a disk maintained in a fixed position on a compound shaft through an interlocking relation ship between each of the individual shafts of the compound shaft and the disk as the disk is moveable between an open or closed position with the butterfly valve may having other features such as an electric drive to quickly rotate the compound shaft to provide for rapid opening and closing the butterfly valve, a disk position indicator and a shaft stop to prevent the disk from being driven past a full open condition.

SYSTEMS AND METHODS FOR A PLUG HEAD ASSEMBLY

A plug head assembly having a ceramic plug head having an annular retention groove, wherein the ceramic plug head has a proximal terminus and a distal terminus, a first clamp portion having a first annular retention protrusion conforming to the annular retention groove, a second clamp portion having a second annular retention protrusion conforming to the annular retention groove, and an annular retention sleeve conforming to the annular retention groove, the annular retention sleeve disposed between the annular retention groove and at least one of the first clamp portion and the second clamp portion. 1. A plug head assembly comprising:a ceramic plug head having an annular retention groove, wherein the ceramic plug head has a proximal terminus and a distal terminus;a first clamp portion having a first annular retention protrusion conforming to the annular retention groove;a second clamp portion having a second annular retention protrusion conforming to the annular retention groove; andan annular retention sleeve conforming to the annular retention groove, the annular retention sleeve disposed between the annular retention groove and at least one of the first clamp portion and the second clamp portion.2. The plug head assembly of claim 1 , further comprising a gasket disposed on a proximal portion of the ceramic plug head.3. The plug head assembly of claim 2 , further comprising a translating shaft having a distal flange claim 2 , the distal flange in contact with the gasket.4. The plug head assembly of claim 3 , further comprising an annular retention ring circumscribing the distal flange claim 3 , gasket claim 3 , and the proximal portion of the ceramic plug head.5. The plug head assembly of claim 4 , wherein the first clamp portion and the second clamp portion circumscribe the annular retention ring.6. The plug head assembly of claim 5 , wherein the first clamp portion is retained by a shoulder bolt.7. The plug head assembly of claim 5 , wherein the annular ...

TOOL-LESS VALVE ACTUATOR CONNECTOR FOR A GLOBE VALVE ASSEMBLY

A globe valve assembly includes a globe valve and a bonnet secured to a housing of the globe valve. The globe valve assembly further includes a yoke assembly having a yoke secured to a globe valve actuator, and a connector assembly secured to the yoke and configured to be connected to the bonnet to secure the globe valve to the globe valve actuator. The connector assembly includes a first arm pivotally secured to the yoke and a second arm pivotally secured to the yoke, with the first arm and the second arm being movable between an open position in which the yoke can receive the bonnet and a closed position in which the arms engage and connect the bonnet to the yoke, and a latch to fasten the arms in the closed position. 1. A globe valve assembly comprising:a globe valve including a housing having an inlet and an outlet, the globe valve being configured to regulate a flow of fluid between the inlet and the outlet;a bonnet secured to the housing of the globe valve;a valve stem axially movable within the bonnet, the valve stem being secured to the valve member; a first arm pivotally secured to the yoke and configured to engage the bonnet on one side of the bonnet,', 'a second arm pivotally secured to the yoke and configured to engage the bonnet on an opposite side of the bonnet, the first arm and the second arm being movable between an open position in which the yoke can receive the bonnet and a closed position in which the arms engage and connect the bonnet to the yoke, and', 'a latch to fasten the arms in the closed position., 'a yoke assembly including a yoke secured to a globe valve actuator configured to move the valve stem and the valve member, and a connector assembly secured to the yoke and configured to be connected to the bonnet to secure the globe valve to the globe valve actuator, the connector assembly including'}2. The globe valve assembly of claim 1 , wherein the bonnet includes a disc-shaped element claim 1 , and wherein a lower portion of the yoke has ...

CYLINDRICAL VALVE ASSEMBLY

A cylindrical valve assembly, including: a housing defining a port, an interior volume, and an interior surface; a lip structure disposed about the periphery of the port, wherein the lip structure protrudes into the interior volume past the interior surface of the housing; and a valve door defining an exterior surface disposed concentrically within the housing, wherein the valve door is configured to move from an open configuration in which it does not obstruct the port to a closed configuration in which it does obstruct the port, and wherein, when the valve door is in the closed configuration, the exterior surface of the valve door is in contact with the lip structure and not the interior surface of the housing. Optionally, the lip structure is provided by an insert structure that is disposed through the port. Optionally, an end of the insert structure opposite the lip structure includes a velocity stack. Optionally, a plurality of dimples are manufactured into the exterior surface of the valve door. 1. A cylindrical valve assembly , comprising:a housing defining a port, an interior volume, and an interior surface;a lip structure disposed about the periphery of the port, wherein the lip structure protrudes into the interior volume past the interior surface of the housing; anda valve door defining an exterior surface disposed concentrically within the housing, wherein the valve door is configured to move from an open configuration in which it does not obstruct the port to a closed configuration in which it does obstruct the port, and wherein, when the valve door is in the closed configuration, the exterior surface of the valve door is in contact with the lip structure and not the interior surface of the housing.2. The cylindrical valve assembly of claim 1 , wherein the valve door comprises a pair of valve doors.3. The cylindrical valve assembly of claim 1 , wherein the lip structure is provided by an insert structure that is disposed through the port.4. The ...

TURBINE WASTEGATE ASSMEBLY

A method can include positioning a bushing in a bore of a turbine housing; positioning a shaft of a wastegate in a bore of the bushing where the shaft includes a shaft shoulder and a shaft end; applying force to a plug of the wastegate to substantially center the plug with respect to a wastegate seat of the turbine housing; positioning a ring at least in part in the bore of the bushing and between the shaft shoulder and the shaft end; and fixing the ring to the bushing. 1. A method comprising:positioning a bushing in a bore of a turbine housing;positioning a shaft of a wastegate in a bore of the bushing wherein the shaft comprises a shaft shoulder and a shaft end;applying force to a plug of the wastegate to substantially center the plug with respect to a wastegate seat of the turbine housing;positioning a ring at least in part in the bore of the bushing and between the shaft shoulder and the shaft end; andfixing the ring to the bushing.2. The method of comprising fixing a control arm to the shaft.3. The method of comprising positioning a shim about the shaft between the bushing and a control arm.4. The method of comprising fixing the control arm to the shaft and removing the shim.5. The method of wherein the shim comprises a thickness of approximately 0.1 mm or less.6. The method of wherein the ring is positioned within the bore of the bushing and wherein an axial clearance exists between the control arm and an end of the bushing.7. The method of wherein the ring extends axially beyond an end of the bushing and wherein an axial clearance exists between the control arm and an end of the ring.8. The method of wherein the ring and the shaft shoulder delimit axial translation of the wastegate.9. The method of wherein the control arm delimits axial translation of the wastegate.10. The method of wherein the ring and the shaft shoulder delimit axial translation of the wastegate.11. The method of wherein the shaft comprises a journal and wherein the shaft shoulder comprises ...

TRANSCATHETER VALVE HAVING REDUCED SEAM EXPOSURE

A transcatheter valve having an expandable frame and a collapsible multi-portion skirt within the frame are provided with seams between the portions of the skirt that are located to cooperate with features of the frame and thereby reduce the exposure of the seams. 116-. (canceled)17. A method of manufacturing a valve prosthesis comprising:providing an expandable frame having a longitudinal axis and an inflow end, and comprising a plurality of cells;providing a valve body comprising a skirt having a bottom edge;sewing the bottom edge to the inflow end of the frame;providing the skirt with a plurality of leaflets attached along a seam having upper and lower portions; andproviding the skirt with at least one side seam extending between the lower portion of the seam and the bottom edge of the skirt.18. The method of claim 17 , in which the lower portion of the joint has a lower apex region claim 17 , and the side seam extends between the lower apex region and the bottom edge.19. The method of claim 17 , in which the frame comprises struts and nodes; the method further comprising aligning the skirt with the frame such that at least one side seam substantially follows a line defined by three immediately adjacent nodes.20. The method of claim 17 , in which the frame comprises struts and nodes; the method further comprising aligning at least one side seam and a line defined by three immediately adjacent nodes with each other within ±1 mm.21. The method of claim 17 , wherein a seam between each leaflet and the skirt is curved.22. The method of claim 17 , wherein at least one side seam extends only between a lower portion of the seam and the bottom edge.23. The method of claim 17 , wherein each leaflet is sewn to the skirt to form a curved seam defining upper and lower portions claim 17 , wherein an apex of the curved seam lies in the lower portion.24. The method of claim 17 , wherein adjoining leaflets are sewn together to form commissures; the method further comprising ...

CLOSURE ELEMENT FOR A VACUUM VALVE WITH PRESSED-OFF, VULCANIZED-ON SEAL

Some embodiments may include a closure element for a vacuum valve that may be configured, for example, for the gastight closing of a process volume by means of cooperation with a vacuum valve opening of the vacuum valve. In some embodiments, the closure element may include a first sealing surface, corresponding to a second sealing surface of the vacuum valve opening, wherein the second sealing surface surrounds the vacuum valve opening, and a sealing material vulcanized onto the first sealing surface and in accordance with its course and having a defined height in the direction of the surface normal of the first sealing surface. In some embodiments, the sealing material may have a defined shape with respect to a sealing material cross section, comprising a first seal portion, provided on the process volume side, and a second seal portion, provided, in particular, facing away from the process volume. 115.-. (canceled)16. A closure element for a vacuum valve and configured for the gastight close-off of a process volume by means of cooperation with a vacuum valve opening , provided for the process volume of the vacuum valve , the closure element comprising:a first sealing surface corresponding to a second sealing surface of the vacuum valve opening wherein the second sealing surface surrounds the vacuum valve opening; and a first seal portion provided on the process volume side; and', 'a second seal portion provided facing away from the process volume;, 'a sealing material vulcanized onto the first sealing surface and in accordance with the course thereof and having a defined height in the direction of the surface normal of the first sealing surface, wherein the sealing material has a defined shape with respect to a sealing material cross section, comprisingwherein the closure element has a compression adjoining the first seal portion and having a pressing edge; andwherein the pressing edge is shaped, and is configured with respect to the first seal portion, such that ...

FLUX COLLECTOR WITH INTERCONNECTED PORTIONS AND METHOD OF MANUFACTURING SOLENOID VALVE ASSEMBLY HAVING SAME

An apparatus such as for a solenoid valve assembly includes a substantially annular flux collector () that has a first arced portion () and at least one additional arced portion (). The first arced portion and the at least one additional arced portion are cooperatively configured to interlock with one another to form the substantially annular flux collector. A method () of manufacturing a solenoid valve assembly using the annular flux collector is also provided. 1. An apparatus comprising:{'b': '12', 'a flux collector () having{'b': '10', 'a first arced portion();'}{'b': '14', 'at least one additional arced portion (); wherein the first arced portion and said at least one additional arced portion are cooperatively configured to interlock with one another so that the flux collector is substantially annular.'}2. The apparatus of claim 1 , wherein the first arced portion and said at least one additional arced portion are configured to interlock by deformation.3. The apparatus of claim 1 , wherein said at least one additional arced portion is a single claim 1 , second arced portion that is substantially identical to the first arced portion.4262420302822. The apparatus of claim 3 , wherein the first arced portion and the second arced portion each have a first feature () at a first radially-extending surface () of a first end () and a second feature ( at a second radially-extending surface () of a second end ();wherein the second feature of the second arced portion is configured to deform the first arced portion at the first feature of the first arced portion and the second feature of the first arced portion is configured to deform the second arced portion at the first feature of the second arced portion to thereby interlock the first arced portion and the second arced portion.526342630. The apparatus of claim 4 , wherein the first feature of the first arced portion and the first feature of the second arced portion are each a slot () having projections () extending inward ...

Pressure relief device assemblies

The present invention is directed to pressure relief devices and to corresponding pressure relief assemblies that have improved vacuum resistance, improved fragmentation resistance, and/or improved burst control while maintaining low mass. The pressure relief device includes a substantially flat flange section and a domed section. The domed section may include a transitional line that defines a change in the shape of the domed section. The pressure relief device may also include a bracket for securing or aligning a domed section to a flange section. The pressure relief device may further include a stress distribution feature that is disposed transversely to a line of weakness in the domed section. The pressure relief assembly may include a fastener having a wire that is configured to break and release the pressure relief device when subject to a predetermined tensile load. 163-. (canceled)64. A pressure relief device , comprising;a first structure having a substantially flat flange section;a second structure having a domed shape and an outer edge; anda bracket having a body portion configured to be securely engaged with the first structure and a support configured to engage the outer edge of the second structure.65. The pressure relief device of claim 64 , wherein the bracket includes at least one tab configured to be securely engaged with the second structure and further configured to withstand a predetermined tensile force.66. The pressure relief device of claim 65 , wherein the second structure includes a notch configured to receive the at least one tab.67. The pressure relief device of claim 65 , wherein the second structure includes a concave surface and a convex surface and the tab is securely engaged with the convex surface.68. The pressure relief device of claim 64 , wherein the bracket extends along the entire perimeter of the first structure.69. The pressure relief device of claim 65 , wherein the bracket includes a plurality of tabs configured to be ...

PROCESS AND DEVICE FOR MANUFACTURING HOLLOW, INTERNALLY COOLED VALVES

A matrix for shaping a valve preform has a circular through opening and a reduced conical section. The reduced conical section tapers from an outer diameter to a reduced cone inner diameter, the outer diameter being greater than or equal to the initial outer diameter of the valve preform, and the matrix inner diameter being smaller than the initial outer diameter. 112-. (canceled)13. A tapering machine for shaping a valve preform , comprising a matrix for shaping a valve preform , the matrix having a circular through opening and a reduced conical section , wherein the reduced conical section tapers from an outer diameter of the opening of the matrix to a reduced cone inner diameter of the matrix , and wherein the outer diameter of the opening of the matrix is greater than or equal to an initial outer diameter of the valve preform , and the matrix reduced cone inner diameter is smaller than the initial outer diameter , and further including a pressing device an a pressing device controller than are configured for pressing the valve preform with a stem section thereof into the matrix with an oscillating motion.14. The tapering machine for shaping a valve preform according to claim 13 , wherein the reduced conical section of the matrix comprises a first reduced conical section claim 13 , and wherein the matrix also includes a second reduced conical section claim 13 , and wherein a transition section is situated between the first and the second reduced conical sections.15. The tapering machine for shaping a valve preform according to claim 14 , wherein the transition section between the first and the second reduced conical sections is cylindrical.16. The tapering machine for shaping a valve preform according to claim 14 , wherein the transition section expands between the first and the second reduced conical sections.17. The tapering machine for shaping a valve preform according to claim 14 , wherein the matrix includes a cylindrical calibration section behind the ...

STRUCTURE FIXING DIAPHRAGM TO DRIVE SHAFT AND METHOD FOR FIXING DIAPHRAGM TO DRIVE SHAFT

In an electromagnetic control valve configured to cancel out forces acting on a valve body by differential pressure using a diaphragm, pressure tightness and durability of the diaphragm are improved. A needle-shaped projection is formed on a lower end of a piston section of a valve rod that is a drive shaft. An insertion hole is formed in the center of a diaphragm guide. The center of the diaphragm is stuck on the needle-shaped projection to make it pass through it. The needle-shaped projection is inserted into the insertion hole in the diaphragm guide. An end of the needle-shaped projection is spot-welded. The diaphragm is stuck with the needle-shaped projection to fix it to the valve rod without cutting a base fabric of the diagram. A needle-shaped projection may be formed on the diaphragm guide and an insertion hole may be formed in the valve rod. 3. The structure fixing diaphragm to drive shaft according to claim 1 ,wherein the needle-shaped projection is formed on the diaphragm guide, the insertion hole is formed in the drive shaft, and wherein the needle-shaped projection and the insertion hole are firmly fixed together by press-fitting the needle-shaped projection into the insertion hole.4. A method of fixing diaphragm to drive shaft for fixing a flexible diaphragm with a base fabric embedded therein to a drive shaft claim 1 , the method comprising the steps of:using a diaphragm guide nipping and holding the diaphragm together with the drive shaft;forming a needle-shaped projection on one of the drive shaft and the diaphragm guide and forming an insertion hole into which the needle-shaped projection is to be inserted in the other; andsticking a center of the diaphragm on the needle-shaped projection to make the needle-shaped projection pass through the diaphragm, and firmly fixing together the needle-shaped projection and the insertion hole so as to fix the diaphragm to the drive shaft.5. The method of fixing diaphragm to drive shaft according to claim 4 , ...

VALVE DIFFUSER FOR A VALVE

A valve diffuser () for a valve (), wherein the valve diffuser () has a valve seat () to make contact with a valve body. The valve seat () has a bushing () for making contact with a valve body. The bushing is formed from a different reinforced material wherein the valve diffuser () and preferably stellite. 1. A valve diffuser for a valve: the valve having a valve seat configured to make contact with a valve body; andthe valve seat comprises a bushing at the valve seat for making contact with the valve body of the valve.2. The valve diffuser as claimed in claim 1 , wherein the bushing is formed from a different reinforced material than the valve seat.3. The valve diffuser as claimed in claim 2 , wherein the material of the bushing is a stellite.4. The valve diffuser as claimed in claim 1 , wherein the bushing has a stellite plating thereon.5. The valve diffuser as claimed in claim 1 , wherein the bushing has an annular form and has an outer region formed parallel to an axis of symmetry of the valve.6. The valve diffuser as claimed in claim 1 , wherein the bushing has an annular form and has a radially outer region of a conical form.73. The valve diffuser () as claimed in claim 6 , wherein a greater diameter of the conical form is arranged at the valve diffuser end8. A method for mounting a bushing on a valve diffuser claim 6 , wherein the diffuser has an open passageway and the diffuser is located in a valve passageway in the valve; andthe method comprises pressing the bushing into the valve diffuser.9. The method as claimed in claim 8 , wherein the valve diffuser is mounted in the valve passageway and the valve diffuser has a passage therethrough having a start end in the valve;the bushing has a conical form with a greater end;the method comprising:arranging the bushing into the passage through the valve diffuser, placing the bushing in the passage with the greater diameter end being at the start end of the passage through the diffuser;the method comprising:pressing ...

METHOD AND APPARATUS FOR MANUFACTURING STEPPED MEMBER

A method and an apparatus for manufacturing a stepped member are provided. An intermediate portion of a shaft workpiece is radially enlarged while being compressed in an axial direction by applying alternating load to the intermediate portion in a direction intersecting the axial direction in a state in which pressure that compresses the shaft workpiece in the axial direction is applied to both ends of the shaft workpiece. The enlarged intermediate portion of the shaft workpiece is cat in a direction perpendicular to the axial direction so that the shaft workpiece is divided into two stepped members. Each of the stepped members has a shaft portion and a head portion provided at an axial end of the shaft portion, and the head portion has a larger diameter than the shaft portion. 1. A method for manufacturing a stepped member having a shaft portion and a head portion provided at an axial end of the shaft portion , the head portion having a larger diameter than the shaft portion , the method comprising:radially enlarging an intermediate portion of a shaft workpiece while compressing the shaft workpiece in an axial direction of the shaft workpiece, the radially enlarging including applying alternating load to the intermediate portion of the shaft workpiece in a direction intersecting the axial direction in a state in which pressure that compresses the shaft workpiece in the axial direction is applied to both ends of the shalt workpiece; anddividing the shaft workpiece into two stepped members, the dividing including cutting the enlarged intermediate portion of the shaft workpiece in a direction perpendicular to the axial direction.2. The method according to claim 1 , wherein the shaft workpiece has a pipe shape claim 1 , and wherein the cutting includes cutting the enlarged intermediate portion of the shaft workpiece at a center of the intermediate portion such that the intermediate portion is divided equally with respect to the axial direction.3. The method according ...

ELECTROHYDRAULIC VALVE AND METHOD FOR PRODUCING THE ELECTROHYDRAULIC VALVE

An electrohydraulic valve including an electromagnetic actuator assembly; and a hydraulic assembly, wherein the electromagnetic actuator assembly and the hydraulic assembly are arranged in axial alignment along a longitudinal axis, wherein the hydraulic assembly includes a valve housing in which a valve piston is arranged axially movable along the longitudinal axis, wherein the electromagnetic actuator assembly includes an actuator housing, a coil configured to generate a magnetic field and an armature that is arranged axially movable along the longitudinal axis to position the valve piston, wherein a connection is formed between the electromagnetic actuator assembly and the hydraulic assembly, wherein the actuator housing is formed by an encasement of at least the coil with a synthetic material through injection molding, wherein a circumferential annular groove is formed in which a seal element is positioned that seals the electromagnetic actuator assembly between the hydraulic assembly and the electromagnetic actuator assembly. 1. An electrohydraulic valve , comprising:an electromagnetic actuator assembly; anda hydraulic assembly,wherein the electromagnetic actuator assembly and the hydraulic assembly are arranged in axial alignment along a longitudinal axis,wherein the hydraulic assembly includes a valve housing in which a valve piston is arranged axially movable along the longitudinal axis,wherein the electromagnetic actuator assembly includes an actuator housing, a coil configured to generate a magnetic field and an armature that is arranged axially movable along the longitudinal axis to position the valve piston,wherein a connection is formed between the electromagnetic actuator assembly and the hydraulic assembly,wherein the actuator housing is formed by an encasement of at least the coil with a synthetic material through injection molding,wherein a circumferential annular groove is formed in which a seal element is positioned that seals the electromagnetic ...

Removal And Installation Device For Valve Keepers

A tool for installing or removing valve keepers is disclosed. One end of the tool is configured to easily remove valve keepers, while the other end of the tool is configured to easily install valve keepers. This valve tool can be further connected to an engine-mounted lever assembly for increasing leverage on the tool during use. 1. A tool for installing valve keepers on a valve stem , comprising:a tool body;a centering pin connected to said tool body; and,an end portion being user-removable from an end of said tool body; said end portion having an aperture through which the centering pin is located, and further having a first and second channel that are each sized to contain a valve keeper.2. The tool of claim 1 , wherein said centering pin is spring biased within a cavity of said tool body.3. The tool of claim 1 , wherein said centering pin further includes a recess on its distal end that is sized to engage the top of a valve stem.4. The tool of claim 1 , wherein said end portion further comprises one or more fastening pins that engage one or more fastening apertures located on a bottom of said tool body.5. The tool of claim 1 , wherein said tool has a first end configured to install said valve keepers on a valve stem and wherein said tool has a second end configured to remove said valve keepers from a valve stem.6. The tool of claim 1 , further comprising a removable handle adapter that can be engaged on a first end of said tool and on a second end of said tool.7. The tool of claim 1 , further comprising a cavity in said tool body; said cavity including a first and a second magnet that are positioned to attract valve keepers when said tool body is pressed over a valve stem.8. The tool of claim 1 , wherein said first and second channels have a semi-circular shape.9. A tool for installing valve keepers on a valve stem claim 1 , comprising:a tool body;a centering pin extending from a pin cavity in said tool body and being movable into and out of said pin cavity; and ...

ORBITAL SEAT IN A BUTTERFLY VALVE

A sealing member is described including a surface contacting a valve body that is at least a portion of a sphere. 1. A sealing member disposed in a valve , the sealing member comprising:an outside surface configured to engage with at least a portion of a valve body; andan disk engaging surface configured to engage with at least a portion of a disk;wherein the outside surface defines at least a portion of a sphere.210. The sealing member of any of and - , wherein the disk engaging surface defines at least a portion of a sphere.32410. The sealing member of any of - and - claims 1 , wherein the disk engaging surface comprises a non-metal portion.43510. The sealing member of any of - and - claims 1 , wherein the sealing member is ring shaped.54610. The sealing member of any of - and - claims 1 , comprising a top surface and a bottom surface65710. The sealing member of any of - and - claims 1 , wherein the top surface is parallel with the bottom surface.76810. The sealing member of any of - and - claims 1 , wherein the top surface is planar.87910. The sealing member of any of - and - claims 1 , wherein the bottom surface is planar.9810. The sealing member of any of - and claims 1 , comprising a top surface claims 1 , a bottom surface claims 1 , and an inner surface.109. The sealing member of any of - claims 1 , wherein:the sealing member is ring shaped;the top surface is parallel with the bottom surface; andthe inside surface and the disk engaging surface define an inner portion of the ring shape.11. A butterfly valve claims 1 , comprising:a valve body defining an aperture;a disk, configured to rotate from a position substantially preventing fluid flow through the aperture to a position allowing fluid flow through the aperture; anda sealing member disposed between the disk and the valve body when the disk is in a position substantially preventing fluid flow through the aperture;wherein a portion of the sealing member in contact with the valve body defines a portion of a ...

Control Valve and Hydraulic Control Module Including the Same

A control valve includes a metal insert extending along an axis and presenting an interior insert surface defining a fluid passage. The control valve also includes a valve member slidably disposed in the fluid passage, and a composite valve body. The composite valve body has a first and second protrusion disposed about the axis. The first protrusion is spaced from the second protrusion along the axis. The composite valve body has a connecting bridge integral with and extending between the first and second protrusions. The connecting bridge has a first connecting side and a second connecting side spaced from the first connecting side, with the axis, the first connecting side, and the second connecting side defining a central angle between 5 and 45 degrees. 1. A control valve for controlling a flow of fluid medium , said control valve comprising:a metal insert extending along an axis and presenting an exterior insert surface, and an interior insert surface defining a fluid passage;a valve member slidably disposed in said fluid passage for controlling the flow of fluid medium; anda composite valve body disposed around said exterior insert surface of said metal insert and about said axis, with said composite valve body having a first and second protrusion disposed about said axis, with said first protrusion being spaced from said second protrusion along said axis, and with said first protrusion, said second protrusion, and said exterior insert surface collectively defining a fluid port for allowing the flow of fluid medium into said fluid passage of said metal insert;wherein said composite valve body has a connecting bridge integral with and extending between said first and second protrusions, wherein said connecting bridge has a first connecting side and a second connecting side spaced from said first connecting side, and wherein said axis, said first connecting side of said connecting bridge, and said second connecting side of said connecting bridge define a central ...

FLUID EXTRACTOR DEVICE AND KIT

A fluid extractor device including a ring with a circumference capable of fitting around an oil filter; a bracket affixed to the ring; and a valve including a base attached to the bracket, an extendable pin extending through the base, and a vacuum extension extending perpendicularly from the base and terminating in a vacuum aperture. 1. A fluid extractor device for extracting fluid from an oil filter , comprising:a ring having a ring circumference capable of fitting around an oil filter circumference of the oil filter and comprising a ring clamp disposed on said ring and capable of reducing said ring circumference of said ring such that said ring is tightly held against the oil filter;a bracket affixed to said ring; and a base comprising a bracket side and a pin side, wherein said bracket side extends through said bracket such that said valve and said bracket are held in place relative to one another;', said pin extends through said base with said screw end of said pin extending beyond said pin side of said base; and', 'through turning said screw end of said pin, said pointed end of said pin is capable of being disposed entirely within said base and is capable of extending beyond said bracket side of said base; and, 'a pin comprising a pointed end and a screw end, wherein, 'a vacuum extension extending perpendicularly from said base and terminating in a vacuum aperture, wherein said vacuum extension is sized and dimensioned to securely attach a vacuum hose around said vacuum extension., 'a valve comprising2. The fluid extractor device as claimed in claim 1 , wherein said bracket is affixed to said ring such that said bracket is a part of said ring circumference.3. The fluid extractor device as claimed in claim 1 , wherein:said bracket comprises a left side, a right side, and a center side connecting tops of said left and right sides, a distance between said left and right sides, a width, and at least one valve hole disposed through said bracket;said left side and ...

GRID FLAP

The invention relates to a grid flap () for use in a filling device or scale, especially in food processing, wherein the grid flap () comprises a metal frame () and a metal grid (), and wherein the grid () comprises a plurality of braces (), which are connected to the frame () on their respective final sections. 1. A grid flap comprising:a metal grid comprising a plurality of braces anda metal frame, the frame surrounding the grid,wherein each of braces comprises an end section, each end section being fixed on the frame.2. The grid flap to wherein the frame comprises a sub-structure for the grid.3. The grid flap according to claim 2 , wherein the sub-structure is integrally formed with the frame.4. The grid flap according to claim 1 , wherein the braces are aligned parallel to each other.5. The grid flap according to claim 1 , wherein at least a first brace is aligned horizontally and at least a second brace is aligned vertically claim 1 , and the braces are arranged crosswise on top of each other to form the grid.6. The grid flap according to claim 1 , wherein at least a first brace is aligned horizontally and at least a second brace is aligned vertically claim 1 , and the braces (are interwoven with each other in a mesh-like structure to form the grid.7. The grid flap according to claim 1 , wherein the end sections are formed in parallel with a plane of the frame.8. The grid flap according to claim 1 , wherein the end section after a last cross brace is longer than a mesh width of the grid.9. The grid flap according to claim 8 , wherein the last cross brace rests on the frame.10. A method of manufacturing grid flap; a metal grid comprising a plurality of braces and', 'a metal frame, the frame surrounding the grid', 'wherein each of braces comprises an end section, each end section being fixed on the frame;, 'the grid flap comprising'} providing a wire netting having a grid structure,', 'providing of a metal frame,', 'adapting the wire netting to the metal frame by ...

Butterfly Valve Assembly

A valve assembly has a valve body, a lower bushing, a valve seat, a lower stem, a disc, and an upper stem. The valve body defines a bi-directional flow path therethrough; wherein the valve body has an inner surface, two flange faces, and further defines an upper orifice and a hemispherical lower orifice along an axis perpendicular to the flow path. The lower bushing is housed in the lower orifice, and the lower bushing is configured to tilt within the lower orifice away from the axis. The lower bushing defines a bushing cavity. The valve seat has an outer surface configured to encapsulate the inner surface and the two flange faces of the valve body. The lower stem is housed in the bushing cavity, and the lower stem is configured for tilting away from and towards the axis perpendicular to the flow path. The disc has a seating surface on at outer circumference, defines a stem receptacle to house the lower stem, and the stem receptacle extends less than a diameter of the disc. 1. A valve assembly having a valve body with an inner surface defining a flow path therethrough , wherein the valve assembly further has an axis perpendicular to the flow path , comprising:an upper orifice defined on an upper side of the inner surface, wherein the upper orifice is aligned along the axis;a lower orifice defined on a lower side of the inner surface, wherein the lower orifice is aligned along the axis;a lower bushing housed in the lower orifice; anda lower stem inserted at one end into the lower bushing, wherein the lower stem is configured for tilting, and wherein the lower stem is inserted at an opposite end into a disc.2. The valve assembly of claim 1 , further comprising a valve seat having an outer surface encapsulating the inner surface of the valve body claim 1 , wherein the valve seat defines an upper opening aligned with the upper orifice and a lower opening aligned with the lower orifice.3. The valve assembly of claim 2 , further comprisingan upper receptacle defined in an ...

Edgeless Valve Spool Design with Variable Clearance

A valve spool may include a cylindrical spool body having a spool longitudinal axis, a first spool body end wall and a second spool body end wall disposed axially opposite the first spool body end wall, and a spool outer surface. The spool outer surface may include a first spool guide region proximate the first spool body end wall and having a spool guide region outer diameter, a second spool guide region proximate the second spool body end wall and having the spool guide region outer diameter, and a spool tight clearance region disposed between the first spool guide region and the second spool guide region. The spool tight clearance region may have a spool tight clearance region outer diameter that is greater than the spool guide region outer diameter. 1. A valve spool comprising:a cylindrical spool body having a spool longitudinal axis, a first spool body end wall and a second spool body end wall disposed axially opposite the first spool body end wall; and a first spool guide region proximate the first spool body end wall and having a spool guide region outer diameter,', 'a second spool guide region proximate the second spool body end wall and having the spool guide region outer diameter, and', 'a spool tight clearance region disposed between the first spool guide region and the second spool guide region and having a spool tight clearance region outer diameter that is greater than the spool guide region outer diameter., 'a spool outer surface comprising'}2. The valve spool of claim 1 , wherein the spool outer surface comprises:a first spool intermediate region disposed between the first spool guide region and the spool tight clearance region and having a first spool intermediate region outer diameter that is less than the spool guide region outer diameter; anda second spool intermediate region disposed between the second spool guide region and the spool tight clearance region and having a second spool intermediate region outer diameter that is less than the spool ...

CHECK VALVE, AIR-CONDITIONING APPARATUS, AND METHOD OF MANUFACTURING CHECK VALVE

A check valve includes a container body and a valve body. The container body includes a cylindrical valve-body housing portion, an inlet portion, an outlet portion, and a valve seat. The inlet portion is formed at one end portion of the valve-body housing portion, and the outlet portion is formed at the other end portion of the valve-body hosing portion. The valve seat is protruded at an inner circumferential surface of the valve-body housing portion. The valve body is provided in the container body and movable in the axial direction thereof.

SYSTEM AND METHOD FOR VALVE ASSEMBLY

A method for assembling a ball valve using a system having a support structure and a tool includes positioning a body of the ball valve on a surface of the support structure. The method also includes driving one or more engaging members of the tool radially outward from a retracted position to an expanded position to engage a seat disposed within the body of the ball valve. The method further includes adjusting an axial position of the surface of the support structure relative to the one or more engaging members of the tool while the seat is engaged by the one or more engaging members of the tool to drive the seat into a seated position within the body of the ball valve. 1. A method for assembling a ball valve using a system having a support structure and a tool , the method comprising:positioning a body of the ball valve on a surface of the support structure;driving one or more engaging members of the tool radially outward from a retracted position to an expanded position to engage a seat disposed within the body of the ball valve; andadjusting an axial position of the surface of the support structure relative to the one or more engaging members of the tool while the seat is engaged by the one or more engaging members of the tool to drive the seat into a seated position within the body of the ball valve.2. The method of claim 1 , comprising inserting a trunnion through a passageway of a ball disposed adjacent to the seat within the body of the ball valve while the seat is held in the seated position by the one or more engaging members of the tool.3. The method of claim 1 , comprising adjusting the axial position of the surface of the support structure relative to the one or more engaging members while the one or more engaging members of the tool are in the retracted position to move the tool to an inserted position in which the one or more engaging members of the tool are axially aligned with the seat to enable the one or more engaging members to engage the seat ...

PRODUCTION METHOD OF BATHROOM HARDWARE SHELLS

A method that includes heating a bar having an outer diameter and a length to a first temperature for a first time; extruding the heated bar to form a hollow blank having a wall thickness; forming a semi-finished blank by closing one end; bending the semi-finished blank to have an angle between first and second parts of the semi-finished blank; placing the bent semi-finished blank in a die, which is heated to a second temperature; forming a shell by injecting a gas onto or into the bent semi-finished blank after closing the die through a gas inlet in the die at a pressure for a second time, which causes the bent semi-finished blank to fit a cavity of the bathroom hardware shell shaping die; removing the shell from the die and forming a water faucet hole therein; and plating an outer surface of the shell with a coating. 1. A method of producing bathroom or kitchen hardware shells , comprising:providing a bar having an outer diameter and a length;heating the bar to a first temperature for a first time;extruding the heated bar to form a hollow blank having a substantially uniform wall thickness;forming a semi-finished blank by closing one end of the hollow blank;bending the semi-finished blank to have an angle between first and second parts of the semi-finished blank;placing the bent semi-finished blank in a bathroom hardware shell shaping die, wherein the bathroom hardware shell shaping die is heated to a second temperature;forming a shell by injecting a gas onto or into the bent semi-finished blank, after closing the bathroom hardware shell shaping die, through a gas inlet in the bathroom hardware shell shaping die at a pressure for a second time, which causes the bent semi-finished blank to fit a cavity of the bathroom hardware shell shaping die;removing the shell from the bathroom hardware shell shaping die and forming a water faucet hole therein; andplating an outer surface of the shell with a coating.2. The method of claim 1 , wherein providing the bar comprises: ...

TRANSCATHETER VALVE HAVING REDUCED SEAM EXPOSURE

A transcatheter valve having an expandable frame and a collapsible multi-portion skirt within the frame are provided with seams between the portions of the skirt that are located to cooperate with features of the frame and thereby reduce the exposure of the seams. 1. A valve body for use in a prosthetic heart valve , the valve body comprising:a skirt having a lower edge;a plurality of valve leaflets, at least one valve leaflet being joined to the skirt to form a leaflet-to-skirt joint, the leaflet-to-skirt joint having an upper portion and a lower portion, the upper portion having an uppermost point;the skirt further having a side seam extending from the leaflet-to-skirt joint toward the lower edge of the of the skirt, the skirt side seam having a length that is significantly shorter than a line extending from the skirt lower edge to the uppermost point on the upper portion of the leaflet- to-skirt joint in a longitudinal direction.2. The valve body of claim 1 , wherein leaflet-to-skirt joint has an upper half and a lower half claim 1 , the skirt side seam extending from the lower half.3. The valve body of claim 2 , wherein the skirt side seam extends downwardly in a longitudinal direction from the lower half of the leaflet-to-skirt joint toward the lower edge of the skirt.4. The valve body of claim 2 , wherein the skirt side seam extends downwardly in a longitudinal direction from the lower half of the leaflet-to-skirt joint to the lower edge of the skirt.5. The valve body of claim 1 , wherein the skirt side seam extends downwardly in a longitudinal direction from the lower portion of the leaflet-to-skirt joint toward the lower edge of the skirt.6. The valve body of claim 1 , wherein the skirt side seam extends downwardly in a longitudinal direction from the lower portion of the leaflet-to-skirt joint to the lower edge of the skirt.7. The valve body of claim 1 , wherein the valve leaflets have free edges forming coaptation edges arranged to meet in an area of ...

CARTRIDGE HEATER FOR THERMOSTAT AND MANUFACTURING METHOD OF THE SAME

Disclosed are a cartridge heater for a thermostat and a manufacturing method of the same. The cartridge heater for a thermostat inserted into wax that reciprocatively moves a piston while being expanded and contracted according to a temperature in a wax cylinder embedded in the thermostat and used for selectively transferring heat to the wax by depending on whether power is applied, includes: a bobbin around which a coil connected with each of lead wires connected with external power and inserted therein is wound on the outer periphery thereof; a heating tube of which one end is closed and the other end is initially opened, the bobbin being inserted toward the closed end from the initially opened end therein, such that the lead wires protrude to the outside and the closed end is inserted into the wax; a filling material filled in the heating tube into which the bobbin is inserted; an insulating cap mounted on the initially opened end of the heating tube in which the filling material is filled while being penetrated by the lead wires; and a joining body mounted on the other end of the heating tube and joined to the wax cylinder while covering the outer periphery of the closed end of the heating tube. 1. A cartridge heater for a thermostat inserted into wax that reciprocatively moves a piston while being expanded and contracted according to a temperature in a wax cylinder embedded in the thermostat and used for selectively transferring heat to the wax depending on whether power is applied , the cartridge heater comprising:a bobbin around which a coil connected with each of lead wires connected with external power and inserted therein is wound on the outer periphery thereof;a heating tube of which one end is closed and the other end is initially opened, the bobbin being inserted toward the closed end from the initially opened end therein, such that the lead wires protrude to the outside and the closed end is inserted into the wax;a filling material filled in the ...

INTAKE CONTROL VALVE AND ASSEMBLY METHOD THEREOF

An intake control valve has a body, a valve, and a shaft. The valve has a connecting portion, a first boss located at an end of the connecting portion in the rotation axial direction; and a second boss located at an other end of the connecting portion in the rotation axial direction. The body has first and second bearing portions supporting the first and second protruding portions, respectively, first and second projection portions projecting inward from inner surfaces of the first and second bearings, respectively, to slidably support the first and second bosses, respectively, and first and second insertion openings defined between one circumferential end and an other circumferential end of the first and second projection portions, respectively. The first and second projection portions partially cover the first and second bosses, respectively, in a circumferential direction of the first boss and the second boss. 1. An intake control valve comprising:a body having a valve seat that is formed in an annular shape and has a space passing through the valve seat to communicate with a cylinder of an internal combustion engine;a valve fitting the valve seat to close the space or separating from the valve seat to open the space; anda shaft connected to the valve to rotate integrally with the valve, the shaft extending in a rotation axial direction of the valve, wherein a connecting portion extending in the rotation axial direction;', 'a first boss having a cylindrical shape and located at an end of the connecting portion in the rotation axial direction; and', 'a second boss having a cylindrical shape and located at an other end of the connecting portion in the rotation axial direction,, 'the valve has a fitting portion fitting the connecting portion and coupled with the connecting portion, the fitting portion passing through the first boss and the second boss in the rotation axial direction;', 'a first protruding portion protruding from an end surface of the first boss in ...

Fluid Control Shutoff And Pump Assembly For A Beverage Dispensing Machine

A shutoff switch for dispensing mixed beverages is presented. The shutoff switch includes a syrup inlet receiving syrup and a syrup outlet dispensing the syrup to a pump. The shutoff switch also includes a water inlet receiving water, and a water outlet dispensing the water to a either the pump or a dispensing point. Two distinct inlets and outlets for syrup and water prevent the syrup and water being mixed in the shutoff switch. The shutoff switch further includes a pressure responsive member that deforms based on pressure changes in the shutoff switch. When the deformation of the pressure responsive member reaches a threshold, an electrical gate in direct communication with the pressure responsive member opens, turning of a pump of the beverage dispensing system. Valves in either chamber of the shutoff switch can also be used as a redundant mechanical way to stop flow in the system. 1. A method for modifying a valve for use as a pressure switch , comprising the steps of:disposing a pressure responsive member in the valve at least partially forming a first chamber fluidly sealed from a second chamber within the valve, wherein the pressure responsive member translates between a first and a second position in response to a pressure; and wherein the actuator moves in response to translation of the pressure responsive member between the first and second positions; and', 'wherein movement of the actuator operates an electrical gate of the pressure switch., 'disposing an actuator in tactile communication with the pressure responsive member;'}216. The method of claim , wherein the actuator is disposed in direct tactile communication with the pressure responsive member.316. The method of claim , further comprising the step of coupling a housing comprising the actuator to the valve.416. The method of claim , wherein the electrical gate of the pressure switch controls a flow of electrical current to a pump.516. The method of claim , wherein the pressure responsive member of ...

Unit for the regulation or control of a fluid pressure

A unit () for the regulation or control of a fluid pressure, having at least one housing section () and a switching film () connected to the at least one housing section () for switching at pressure differentials relative to an ambient pressure acting on the switching film (), and for the regulation, release or blocking of a flow of the fluid between an inlet () and a discharge () for the fluid. The switching film () is made out of a polymer material having fluorine and carbon, in particular a thermoplastic having fluorine and carbon. In this arrangement, a hole cross-section () of the at least one housing section () is closed off by the switching film (). 1. A regulation unit for the regulation or control of a fluid pressure , comprising: at least one housing section;', 'a fluid inlet port;', 'a fluid discharge port;, 'a regulation housing havinga switching film connected to the at least one housing section and adapted to switch at pressure differentials of 1 to 250 mbar relative to an ambient pressure acting on the switching film;wherein the switching film is adapted for regulation, release or blocking of a flow of the fluid between the inlet port and the fluid discharge port;wherein the switching film is made out of a thermoplastic or a polymer material having fluorine and carbon,wherein a first housing section of the at least one housing section has a first chamber, the first housing section having a hole though which the first chamber opens to an exterior of the first housing section, the hole having a hole cross-section;wherein the hole cross-section of the at least one housing section is closed off by the switching film.2. The regulation unit according to claim 1 , whereinat least one circumferential mating surface situated radially to the outside and radially surrounding the hole cross-section;wherein the switching film is fixedly and fluid-tightly connected to the at least one housing section and closing off the hole cross-section.3. The regulation unit ...

Unit for the regulation or control of a fluid pressure

A unit () for the regulation or control of a fluid pressure, having at least one housing section () and a switching film () connected to the at least one housing section () for switching at pressure differentials relative to an ambient pressure acting on the switching film (), and for the regulation, release or blocking of a flow of the fluid between an inlet () and a discharge () for the fluid. The switching film () is made out of a polymer material having fluorine and carbon, in particular a thermoplastic having fluorine and carbon. In this arrangement, a hole cross-section () of the at least one housing section () is closed off by the switching film (). 1. A regulation unit for the regulation or control of a fluid pressure , comprising: at least one housing section;', 'a fluid inlet port;', 'a fluid discharge port;, 'a regulation housing havinga switching film connected to the at least one housing section and adapted to switch at pressure differentials of 1 to 250 mbar relative to an ambient pressure acting on the switching film;wherein the switching film is adapted for regulation, release or blocking of a flow of the fluid between the inlet port and the fluid discharge port;wherein the switching film is made out of a thermoplastic or a polymer material having fluorine and carbon,wherein a first housing section of the at least one housing section has a first chamber, the first housing section having a hole though which the first chamber opens to an exterior of the first housing section, the hole having a hole cross-section;wherein the hole cross-section of the at least one housing section is closed off by the switching film.2. The regulation unit according to claim 1 , whereinat least one circumferential mating surface situated radially to the outside and radially surrounding the hole cross-section;wherein the switching film is fixedly and fluid-tightly connected to the at least one housing section and closing off the hole cross-section.3. The regulation unit ...

Unit for the regulation or control of a fluid pressure

A unit () for the regulation or control of a fluid pressure, having at least one housing section () and a switching film () connected to the at least one housing section () for switching at pressure differentials relative to an ambient pressure acting on the switching film (), and for the regulation, release or blocking of a flow of the fluid between an inlet () and a discharge () for the fluid. The switching film () is made out of a polymer material having fluorine and carbon, in particular a thermoplastic having fluorine and carbon. In this arrangement, a hole cross-section () of the at least one housing section () is closed off by the switching film (). 1. A regulation unit for the regulation or control of a fluid pressure , comprising: at least one housing section;', 'a fluid inlet port;', 'a fluid discharge port;, 'a regulation housing havinga switching film connected to the at least one housing section and adapted to switch at pressure differentials of 1 to 250 mbar relative to an ambient pressure acting on the switching film;wherein the switching film is adapted for regulation, release or blocking of a flow of the fluid between the inlet port and the fluid discharge port;wherein the switching film is made out of a thermoplastic or a polymer material having fluorine and carbon,wherein a first housing section of the at least one housing section has a first chamber, the first housing section having a hole through which the first chamber opens to an exterior of the first housing section, the hole having a hole cross-section;wherein the hole cross-section of the at least one housing section is closed off by the switching film.2. The regulation unit according to claim 1 , whereinat least one circumferential mating surface situated radially to the outside and radially surrounding the hole cross-section;wherein the switching film is fixedly and fluid-tightly connected to the at least one housing section and closing off the hole.3. The regulation unit according to ...

NOZZLE ASSEMBLY

The present disclosure relates to a nozzle assembly for a servo valve. The nozzle assembly comprises a nozzle including a nozzle inlet and a nozzle outlet, and a tubular filter mounted to the nozzle for filtering fluid flowing into the nozzle through the nozzle inlet. 1. A nozzle assembly for a servo valve comprising:a nozzle including a nozzle inlet and a nozzle outlet; anda tubular filter mounted to the nozzle configured to filter fluid flowing into the nozzle through the nozzle inlet.2. The nozzle assembly of claim 1 , wherein the tubular filter comprises:a tubular filter body; anda nozzle fitting adapter;wherein a first end of the filter body is fixed to the nozzle fitting adapter and a portion of the nozzle fitting adapter is received by a portion of the nozzle at the nozzle inlet.3. The nozzle assembly of claim 2 , wherein the portions of the nozzle fitting adapter and the nozzle inlet are complementary threaded portions.4. The nozzle assembly of claim 2 , wherein the nozzle assembly further comprises:a housing including a nozzle cavity, the nozzle being received in the nozzle cavity; anda cap receiving a second, opposing end of the filter body, and providing a removable seal between the environment and the nozzle cavity.5. The nozzle assembly of claim 4 , wherein the cap further comprises an annular recess and an O-ring received in the recess.6. The nozzle assembly of claim 4 , wherein the cap is secured to the housing with removable fasteners or via a screw thread on an outer surface of the cap co-operating with a screw thread on the housing.7. The nozzle assembly of claim 4 , wherein the nozzle assembly further comprises a spring member extending between the cap and the nozzle fitting adapter claim 4 , the spring member surrounding the filter body and allowing fluid communication thereto.8. The nozzle assembly of claim 4 , further comprising:a control fluid port opening into the nozzle cavity and in fluid communication with the nozzle via the tubular filter ...

SPRING LOAD ADJUSTING METHOD

A linear solenoid valve has a spring member and a spring load adjusting member, which is screwed into a sleeve member of the linear solenoid valve in order to adjust a spring load of the spring member. The sleeve member has a female screw portion and a swaged-claw forming portion is formed at an axial end surface of the female screw portion. Multiple swaging punches are prepared, each of which has a punching tooth portion of a punching portion. A punching area of the punching tooth portion differs from the swaging punch to the swaging punch. One of the multiple swaging punches is selected depending on a press-direction distance between the swaged-claw forming portion and an axial end surface of the adjust screw member. When the press-direction distance is smaller than a predetermined distance range, the swaging punch having a larger punching area for the punching tooth portion is selected, wherein the punching area is larger than a punching area of another swaging punch which is selected when the press-direction distance is larger than the predetermined distance range. 1. A method for adjusting spring load comprising; a spring member;', 'a female screw member of a cylindrical shape having a female screw formed at its inner peripheral surface, wherein the female screw member has a swaged-claw forming portion at its axial end in a press direction for pushing the spring member; and', 'an adjust screw member having a male screw formed at its outer peripheral surface and engaged with the female screw, wherein the adjust screw member adjusts the spring load for the spring member depending on a relative position of the adjust screw member with respect to the female screw member in the press direction;, 'a step for preparing a spring load adjusting device, which includes;'}a step for preparing multiple swaging punches for plastically deforming the swaged-claw forming portion and forming a swaged claw plastically deformed to an axial end surface of the adjust screw member in ...

SERVO VALVE HOUSING

The present disclosure relates to an additively manufactured servo valve housing comprising an outer shell, having an outer wall surface defining an outer perimeter of the housing, and a lattice structure within the outer shell. 1. A servo valve housing comprising:an outer shell having an outer wall surface defining an outer perimeter of the housing;a lattice structure within the outer shell.2. The servo valve housing of claim 1 , wherein the outer shell includes an inner wall surface claim 1 , defining an inner perimeter of the outer shell claim 1 , and the lattice structure extends between different portions of the inner wall surface.3. The servo valve housing of claim 1 , wherein at least one cavity is defined within the housing by the outer wall surface of the outer shell.4. The servo valve housing of claim 1 , wherein the outer shell is a solid outer shell layer.5. The servo valve housing of claim 1 , wherein the lattice structure has an irregular structure claim 1 , defining a mixed density within the outer shell.6. The servo valve housing of claim 5 , wherein the density of the lattice structure is greater in an area of the housing determined to experience a relatively higher stress during operation than in another area of the housing.7. The servo valve housing of claim 6 , wherein the density of the lattice structure is greater in an area of the housing determined to be relatively more susceptible to stress concentrations and/or fatigue than in another area of the housing.8. The servo valve housing or method of claim 1 , wherein the lattice structure has an irregular structure claim 1 , comprising more than one different types of lattice structure within the outer shell.9. The servo valve housing of claim 1 , wherein the lattice structure has a regular structure claim 1 , defining an approximately uniform density within the outer shell and one type of lattice structure.10. The servo valve housing or method of claim 1 , wherein the thickness of the outer ...

Backflow Prevention and Method of Manufacture

A backflow prevention assembly is disclosed including a backflow prevention valve having a valve housing including a valve inlet end and a valve outlet end; a spool spacer of predetermined length having a first end and a second end; an inlet shut-off valve; and an outlet shut-off valve, wherein the spool spacer extends between the backflow prevention valve and one of the inlet shut-off valve and the outlet shut-off valve. The entire assembly, including the backflow prevention valve, the spool spacer, the inlet shut-off valve, and the outlet shut-off valve, is a certified assembly, certified by a certifying authority prior to installation. Methods of manufacturing a backflow prevention assembly and replacing a backflow prevention assembly are also disclosed. 120-. (canceled)21. A method of manufacturing a backflow prevention assembly comprising the steps of:receiving a measured length of a first backflow prevention assembly between a fluid supply conduit to a fluid exit conduit, wherein the first backflow prevention assembly is at a replacement site and includes a first inlet shut-off valve, a first backflow prevention valve having a first backflow prevention valve length, and a first outlet shut-off valve;receiving a measured line size of at least one component of the first backflow prevention assembly;obtaining a second backflow prevention valve having a second backflow prevention valve length different than the first backflow prevention valve length;obtaining a spool spacer;obtaining a second inlet shut-off valve and a second outlet shut-off valve, the second inlet shut-off valve having a second inlet shut-off valve line size, the second outlet shut-off valve having a second outlet shut-off valve line size, each of the second inlet shut-off valve line size and the second outlet shut-off valve line size being equal to the measured line size;assembling a second backflow prevention assembly by connecting the second backflow prevention valve, the spool spacer, the ...

CONNECTOR LINK FOR BUTTERFLY VALVE

A connector link for use in an actuation system for a butterfly valve has a central web extending between two generally cylindrical ends. There are bores formed in each of two generally cylindrical ends and bushings extend axially upwardly from a nominal face at each of the ends. One of the ends has a bore formed at a radius defined as a first distance. A distance between center points of the bores in the first and second ends is defined as a second distance. The ratio of the second distance to the first distance is greater than or equal to 19.2772 and less than or equal to 19.4125. A valve and method are also disclosed. 1. A connector link for use in an actuation system for a butterfly valve comprising:a central web extending between two generally cylindrical ends;bores formed in bushings at each of the two ends and said bushings extending upwardly from a nominal face at each of said ends, a first of said bushings ends having said bore formed at a radius defined as a first distance, and a distance between center points of said bores in said first bushing and a second of said bushings being defined as a second distance; anda ratio of said second distance to said first distance being greater than or equal to 19.2772 and less than or equal to 19.4125.2. The connector link as set forth in claim 1 , wherein a radius of said bore in said second bushing is equal to said first distance.3. The connector link as set forth in claim 2 , wherein said connector link is formed of a stainless steel claim 2 , and said bushings are formed of a cob alt alloy.4. The connector link as set forth in claim 1 , wherein said connector link is formed of a stainless steel claim 1 , and said bushings are formed of a cob alt alloy.5. A butterfly valve and actuation system comprising:a butterfly valve pivotally mounted within a fluid flow duct and an actuation system including a piston attached to one end of a connector link and the connector link including an arm attached at a second end to ...

FLUID FLOW REGULATOR ASSEMBLY

A fluid flow resistance assembly includes a fluid pathway. A width of the fluid pathway orthogonal to a flow of fluid through the fluid pathway varies along its length. Positioning of one or more ports at different locations over the fluid pathway at different locations controls a flow rate of fluid. 1. A flow control apparatus comprising:a length of fluid pathway;a first port, an opening of the first port positioned over the fluid pathway at a first location along the length; anda second port, an opening of the second port positioned over the fluid pathway at a second location along the length, a width of the fluid pathway at the first location into the opening of the first port different than a width of the fluid pathway at the second location into the opening of the second port.2. The flow control apparatus as in claim 1 , wherein the fluid pathway is movable with respect to the opening of the first port and the opening of the second port to adjust a fluid flow resistance through a combination of the first port claim 1 , a portion of the fluid pathway between the first location and the second location claim 1 , and the second port.3. The flow control apparatus as in claim 2 , wherein the opening of the first port is disposed to be at a fixed offset distance with respect to the opening of the second port.4. The flow control apparatus as in claim 1 , wherein an aperture of the fluid pathway into the opening of the first port at the first location and an aperture of the fluid pathway into the opening of the second port at the second location controls an amount of fluid flow resistance of fluid passing along the fluid pathway from the first port to the second port.5. The flow control apparatus as in claim 1 , wherein a cross-sectional flow area of the fluid pathway orthogonal to a flow of fluid through the fluid pathway varies along the length.6. The flow control apparatus as in claim 1 , wherein a width of the fluid pathway orthogonal to a flow of fluid through the ...

SLANT-DRILLED VALVE COLLAR

A valve collar for use with a fluid actuated downhole tool includes a mandrel having one or more valve cylinders formed in the wall thereof, the valve cylinders formed at an angle to the mandrel. The valve cylinders may be connected to each other, to the interior of the mandrel, and to the fluid actuated downhole tool through end holes, slant shell holes, and radial holes. Each valve cylinder may include a valve assembly inserted thereinto. 1. A method of manufacturing a valve collar comprising:providing a mandrel, the mandrel being a generally tubular body having a first end, and a wall having a thickness;forming a first blind end hole in the first end of the mandrel;forming a first slant shell hole in the mandrel, the slant shell hole located apart from the first end of the mandrel, the first slant shell hole fluidly coupled to the blind end hole, the first slant shell hole defining a first valve cylinder;forming a first radial hole in the mandrel, the radial hole positioned to fluidly couple the first valve cylinder to the interior bore of the mandrel; andinserting a valve assembly into the first valve cylinder.2. The method of claim 1 , further comprising:forming a second slant shell hole, the second slant shell hole located apart from the first slant shell hole, the second slant shell hole defining a second valve cylinder;forming a first connecting port to fluidly couple the first valve cylinder and the second valve cylinder, the first connecting port being a shell hole or slant shell hole; andinserting a second valve assembly into the second valve cylinder;the first radial hole intersecting the second valve cylinder, and coupled to the first valve cylinder via the second valve cylinder and the first connecting port.3. The method of claim 2 , further comprising:forming a second blind end hole in the first end of the mandrel, the second blind end hole spaced apart from the first blind end hole, the second blind end hole fluidly coupled to the second valve ...

HARD COATED SUPPLY BIASED SPOOL VALVES

Hard coated spool valves are disclosed. An example spool valve includes a sleeve and a spool to be positioned within the sleeve. The sleeve and the spool are made of a corrosion resistant material. The spool valve includes a wear resistant coating on at least one of the spool or the sleeve. 1. A spool valve comprising:a sleeve;a spool to be positioned within the sleeve, the sleeve and the spool made of a corrosion resistant material; anda wear resistant coating applied to at least one of the spool or the sleeve.2. The spool valve of claim 1 , wherein the corrosion resistant material is austenitic stainless steel.3. The spool valve of claim 1 , wherein the coating is a diamond-like carbon coating.4. The spool valve of claim 1 , wherein the wear resistant coating has a thickness of approximately 1 μm.5. The spool valve of claim 1 , wherein the wear resistant coating has a thickness that is less than a radial clearance between the spool and the sleeve.6. The spool valve of claim 1 , wherein the spool and the sleeve are prefabricated claim 1 , an outer diameter of the prefabricated spool to be machined to increase a gap between the spool and the sleeve before the coating is applied to the spool.7. The spool valve of claim 1 , wherein an inner diameter of the sleeve is to be machined to size after applying the coating to an outer diameter of the spool.8. The spool valve of claim 1 , wherein the coating is applied to outer surfaces of lands on the spool.9. The spool valve of claim 8 , wherein the coating is not applied to regions of the spool spaced apart from the lands on the spool.10. The spool valve of claim 1 , wherein the spool valve is implemented in a digital valve controller.11. A digital valve controller claim 1 , comprising:a housing; anda spool valve within the housing, the spool valve including a spool moveable within a sleeve, a wear resistant coating to be applied onto at least one of the spool or the sleeve to create a barrier between direct contact of the ...

TORQUE REDUCING VALVE SEAT

A valve seat includes an annular sealing surface comprising a rubber-lubricant mixture; and a seat body. A valve includes a valve body; a valve element disposed within the valve body; and a valve seat comprising a rubber-lubricant mixture, the valve element configured to seal against the valve seat. A method for forming a valve seat includes mixing a raw rubber with a lubricant to form a rubber-lubricant mixture; placing the rubber-lubricant mixture into a mold configured to form a valve seat; and curing the rubber-lubricant mixture. 1. A valve seat comprising:an annular sealing surface comprising a rubber-lubricant mixture; anda seat body.2. The valve seat of claim 1 , wherein the seat body defines the annular sealing surface and comprises the rubber-lubricant mixture.3. The valve seat of claim 1 , wherein the rubber-lubricant mixture comprises an amide derivative.4. The valve seat of claim 1 , wherein the rubber-lubricant mixture comprises LUBE-2.5. The valve seat of claim 1 , wherein the rubber-lubricant mixture comprises a concentration of lubricant between 30 g/kg and 60 g/kg.6. The valve seat of claim 1 , wherein the rubber-lubricant mixture comprises a concentration of lubricant measured in g of lubricant/kg of rubber between 45 g/kg and 55 g/kg claim 1 , inclusive.7. The valve seat of claim 1 , wherein the rubber-lubricant mixture comprises a concentration of lubricant of about 50 g of lubricant per kg of rubber.8. The valve seat of claim 1 , wherein the valve seat is configured as a butterfly valve seat.9. A valve comprising:a valve body;a valve element disposed within the valve body; anda valve seat comprising a rubber-lubricant mixture, the valve element configured to seal against the valve seat.10. The valve of claim 9 , wherein the valve is a butterfly valve and the valve element is a disc claim 9 , wherein the butterfly valve defines a bore with a diameter greater than or equal to 8 inches claim 9 , and wherein the disc is configured to seal against ...

METHOD OF MAKING A BALL VALVE

A refrigeration valve having a ball valve assembly and a hermetic seal between the body and bonnet is provided. Such a refrigeration valve allows for a generally straight flow path for the associated fluid. 1. A method of making a hermetically sealed refrigeration service ball valve comprising the steps of:providing refrigeration ball valve fitting components including a body, a bonnet, a ball valve member, and a number of ball seals, said fitting body defining a ball valve chamber, said ball valve member corresponding to said fitting body ball valve chamber;positioning a first ball seal in said fitting body ball valve chamber;positioning said ball valve member in said fitting body ball valve chamber;positioning a second ball seal in said fitting body ball valve chamber;coupling said fitting body and said fitting bonnet at a circular interface; andcoupling said fitting body and said fitting bonnet by a metal coupling.2. The method of wherein said step of providing refrigeration ball valve fitting components includes the step of providing a fitting body and a fitting bonnet structured to have a circular interface spaced between about 0.34 and 0.54 from the outer surface of said second ball seal when said second ball seal is disposed in said fitting body ball valve chamber.3. The method of wherein said step of providing refrigeration ball valve fitting components includes the step of providing a fitting body and a fitting bonnet structured to have a circular interface spaced about 0.44 from the outer surface of said second ball seal when said second ball seal is disposed in said fitting body ball valve chamber.4. The method of wherein said step of coupling said fitting body and said fitting bonnet by a metal coupling includes the step of applying heat to said circular interface with a welding dwell time of about eighteen seconds.5. The method of wherein said step of coupling said fitting body and said fitting bonnet by a metal coupling includes the step of utilizing a ...

PROSTHETIC VALVE WITH LEAFLET CONNECTORS

In an unfolded state, a sheet defines a panel at a medial region, and tab portions disposed peripherally to the panel. A method comprises (A) sandwiching, between a first tab portion and a second tab portion, (i) a first commissural portion of a first leaflet, and (ii) a second commissural portion of a second leaflet; (B) attaching the first tab portion and the second tab portion to the sheet by stitching a first stitching through the tab portions and the commissural portions; (C) subsequently, covering the first stitching by: (i) forming the first tab portion into a first tab having an outer layer and an inner layer, and (ii) forming the second tab portion into a second tab having an outer layer and an inner layer; and (D) subsequently, stitching a second stitching through the outer and inner layers, and the commissural portions. Other embodiments are also described. 1. A method for use with a flexible sheet that , in an unfolded state of the sheet , defines a panel at a medial region of the sheet , a first tab portion disposed peripherally to the panel , and a second tab portion disposed peripherally to the panel opposite the first tab portion , the method comprising:sandwiching, between the first tab portion and the second tab portion, (i) a first commissural portion of a first prosthetic leaflet, and (ii) a second commissural portion of a second prosthetic leaflet;attaching the first tab portion and the second tab portion to the flexible sheet by stitching a first stitching through the first tab-portion, the first commissural portion, the second commissural portion, and the second tab-portion; folding the first tab portion back against itself to form the first tab portion into a first tab having first-tab outer layer and a first-tab inner layer, such that the first-tab inner layer is sandwiched between the first-tab outer layer and the first commissural portion, and', 'folding the second tab portion back against itself to form the second tab portion into a ...

PROCESS FOR MANUFACTURNIG AN INTERNALLY COOLED VALVE HAVING A COOLING STRUCTURE, AND VALVE MANUFACTURED BY SAID METHOD

The invention relates to a process for manufacturing an internally cooled valve, said process involving providing an externally at least partly cylindrical semifinished product (), creating or increasing the depth of an at least partly cylindrical cavity in the semifinished product () in a hot-working procedure using a male die such that a valve blank is formed; during the hot-working procedure, a recess on an end face of the male die forms a structure on the bottom of the cavity. 111-. (canceled)12. A method for producing a valve blank for an internally cooled valve , comprising providing a semifinished product having an at least partially cylindrical exterior , and creating an at least partially cylindrical cavity in the semifinished product by heat forming , using a stamp , thus producing a valve blank , wherein the hot forming encompasses backward extrusion , wherein a structure is formed on a base of the cavity during the hot forming via a recess at n end face of the stamp.13. The method for producing a valve blank according to claim 12 , wherein the structure includes cooling ribs that extend in a circular or star shape.14. The method for producing a valve blank according to claim 12 , wherein the structure includes pins claim 12 , cones claim 12 , or truncated cones that act as cooling elements.15. The method for producing a valve blank according to claim 12 , wherein the structure includes blades that are able to set a coolant in a valve into rotation.16. The method for producing a valve blank according to claim 12 , wherein a valve head is formed onto the valve blank during the hot forming.17. A method for manufacturing an internally cooled valve claim 16 , wherein after the valve head is formed according to claim 16 , a diameter of the valve blank next to the valve head is reduced in the axial direction in order to form a valve stem.18. The method for manufacturing an internally cooled valve according to claim 17 , wherein the valve stem is formed by ...

WATER VALVE WITH SUPPORTED OPENING FUNCTION

Water valves and methods of regulating fluid flow for low ambient pressure water sources that reduce the amount of filtration needed for valve mechanisms operating in the water source. 1. A water valve comprising:a chamber defining an inlet and an outlet;an anchor disposed in the chamber;a pull element engaged with the anchor;a sealing cylinder engaging the pull element;a membrane with a proximal surface facing toward the inlet and a distal surface facing away from the inlet, wherein the membrane defines a central cavity, that engages the sealing cylinder, and a continuous substantially radial surface surrounding and extending from the central cavity;in an anchor first position the pull element closes a small valve seat defined in the sealing cylinder and water flows through a bypass channel to engage the distal surface of the membrane;in an anchor second position, displacement of the anchor moves the pull element to open the small valve seat and water flows through the small valve seat through an interior of the sealing cylinder and out via the outlet; andin an anchor third position, the sealing cylinder is displaced by the pull element and opens a main valve seat such that water flows substantially from the inlet through the outlet.2. The water valve of claim 1 , wherein in the anchor third position claim 1 , water flows substantially from the inlet through the outlet while flow reduces through the small valve seat.3. The water valve of claim 1 , wherein in the anchor third position claim 1 , water flows substantially from the inlet through the outlet without passing through a filter.4. The water valve of claim 1 , wherein the sealing cylinder is at least partially encircled by a filter.5. The water valve of claim 4 , wherein only water passing through the filter at least partially encircling the sealing cylinder contacts the distal surface of the membrane.6. The water valve of claim 4 , wherein only water passing through the filter at least partially encircling ...

PROSTHETIC VALVE WITH LEAFLET CONNECTORS

A unitary flexible sheet is folded to defines a panel, and first and second tabs. Each of the tabs has an inner layer and an outer layer. Commissural portions of prosthetic leaflets are sandwiched between inner layers of the first and second tabs. The tabs protrude from a first side of the panel, and are shaped such that progressively downstream parts of each tab protrude progressively further away from the panel portion. Other embodiments are also described. 175-. (canceled)76. An apparatus , comprising:a tubular frame that defines a lumen and has an inner surface that faces the lumen; and a panel portion at a medial region of the sheet,', 'a first tab portion disposed peripherally to the panel, and having (i) a first part, and (ii) a second part that is disposed peripherally to the first part of the first tab portion, and', 'a second tab portion disposed peripherally to the panel opposite the first tab portion, and having (i) a first part, and (ii) a second part that is disposed peripherally to the first part of the second tab portion,, 'a unitary flexible sheet that, in an unfolded state of the sheet, defines a panel, defined by the panel portion, having a first side facing in a first direction, and a second side that is opposite the first side;', a first-tab inner layer defined by the first part of the first tab portion extending away from the panel in the first direction, and', 'a first-tab outer layer defined by the second part of the first tab portion being folded back over the first part of the first tab portion, and extending back toward the panel;, 'a first tab, defined by the first tab portion, the first tab being disposed on the first side of the panel, shaped such that progressively downstream parts of the first tab protrude progressively further away from the panel portion and into the lumen, and having, a second-tab inner layer defined by the first part of the second tab portion extending away from the panel in the first direction, and', 'a second-tab ...

Solenoid Valve Having One-Piece Collar-Tube

According to various aspects, exemplary embodiments are disclosed of a one-piece collar-tube for a valve assembly. Also disclosed are valve assemblies that include a one-piece collar-tube. Also disclosed are exemplary embodiments of methods. In an exemplary embodiment, a method generally includes integrally forming a collar portion and a tube portion for a valve assembly from a non-magnetic material as a single piece having a monolothic construction. 1. A valve assembly comprising:a one-piece collar-tube including a collar portion and a tube portion;an inlet;an outlet;a valve seat disposed within the collar portion in the flow path between the inlet and the outlet;a stationary core disposed within the tube portion;a moveable valve member disposed within the one-piece collar-tube and moveable relative to the valve seat;a biasing element disposed within the tube portion for resiliently biasing the moveable valve member relative to the valve seat; anda solenoid disposed around the tube portion, the solenoid operable for moving the valve member relative to the valve seat against the bias of the biasing element.2. The valve assembly of claim 1 , wherein the collar portion and tube portion are integrally formed from non-magnetic material such that the one-piece collar-tube has a monolithic construction of the non-magnetic material.3. The valve assembly of claim 1 , wherein the one-piece collar-tube comprises ASTM A276 304L or 316L stainless steel.4. The valve assembly of claim 1 , wherein the one-piece collar-tube has a monolithic construction without any welded claim 1 , soldered claim 1 , or brazed joints connecting the collar portion to the tube portion.5. The valve assembly of claim 1 , wherein:the valve assembly further comprises a cartridge the includes or defines the inlet, the outlet, and the valve seat; andthe cartridge is disposed within the collar portion.6. The valve assembly of claim 3 , wherein the collar portion of the one-piece collar-tube includes a ...

Method and System of Valve Refurbishment

A method of refurbishing a damaged valve is disclosed that generally includes receiving a valve housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength and the side walls having a predetermined thickness, creating an annular groove about an interior annular face of the inlet port, creating an annular groove about an interior annular face of the outlet port, and placing a second metal within each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal. 1. A method , comprising:(a) receiving a valve housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength and the side walls having a predetermined thickness;(b) creating an annular groove about an interior annular face of the inlet port;(c) creating an annular groove about an interior annular face of the outlet port; and(d) placing a second metal within each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal2. The method of claim 1 , wherein the temperature of the valve housing is maintained at between approximately 400 and 600 degrees Fahrenheit during placement of the second metal within each of the annular grooves.3. The method of claim 1 , wherein the grooves have a U-shaped geometry.4. The method of claim 3 , wherein the U-shaped grooves are smooth.5. The method of claim 3 , wherein the second metal is placed into the grooves by a welding process.6. The method of claim 3 , wherein the second metal comprises an alloy containing nickel claim 3 , chromium claim 3 , cobalt claim 3 , and ...

METHOD FOR PRODUCING A HOUSING, ESPECIALLY A VALVE HOUSING

A method for producing a housing is provided. In a first method step, connecting a material plate, having a main extension plane in each case, of the first, second and third material, respectively, in the first and second connection regions, the first and second connection region extending parallel to the main extension planes of the material plates in each case; in a second connection step, processing the interconnected material plates in order to produce the first, second and third zones of the housing. 17.-. (canceled)8. A method for manufacturing a housing , the housing extending longitudinally along an axial direction and being rotationally symmetrical about an axial direction at least in subregions , the housing including at least one first zone having a first material , a second zone having a second material , and a third zone having a third material , and along the axial direction , the first zone being directly connected to the second zone in a first connection region , and along the axial direction , the second zone being directly connected to the third zone in a second connection region , the second material having different magnetic properties than the first and third material , the method comprising:in each case connecting one material plate, having a main extension plane, of the first, second, and third material in the first and the second connection regions, the first and the second connection regions extending parallel to the main extension planes of the material plates in each case; andprocessing the interconnected material plates in order to produce the first, second, and third zones of the housing.9. The method as recited in claim 8 , wherein the housing is a valve housing for an electromagnetically actuable valve.10. The method as recited in claim 8 , wherein the connection of the material plates in the connecting step is carried out one of by roll bonding and by explosive cladding.11. The method as recited in claim 8 , wherein during the ...

DUAL-ALLOY PYROTECHNIC-ACTUATED VALVE ASSEMBLY

A pyrotechnic-actuated valve assembly may include an insert body having an inlet, an outlet, and a flow path extending from the inlet to the outlet. The insert body is formed of a first alloy. A shear structure is bonded to the outlet of the insert body so as to close the flow path. The shear structure is formed of a second alloy. The second alloy of the shear structure is bonded to the first alloy of the insert body so as to form a hermetic seal. The dual-alloy nature of the valve assembly allows a relatively clean shearing of the shear structure during actuation, thus reducing or preventing the occurrence of deformation and/or material fragments in the flow path. 1. A pyrotechnic-actuated valve assembly , comprising:an insert body having an inlet, an outlet, and a flow path extending from the inlet to the outlet, the insert body formed of a first alloy; anda shear structure bonded to the outlet of the insert body so as to close the flow path, the shear structure formed of a second alloy, the second alloy of the shear structure being bonded to the first alloy of the insert body so as to form a hermetic seal.2. The pyrotechnic-actuated valve assembly of claim 1 , wherein the insert body is tapered at the outlet to decrease a contact area with the shear structure.3. The pyrotechnic-actuated valve assembly of claim 1 , wherein the insert body has an outer diameter that is larger than 2 inches.4. The pyrotechnic-actuated valve assembly of claim 1 , wherein the first alloy and the second alloy have different crystal structures.5. The pyrotechnic-actuated valve assembly of claim 1 , wherein the first alloy and the second alloy have different lattice constants.6. The pyrotechnic-actuated valve assembly of claim 1 , wherein the second alloy is harder than the first alloy.7. The pyrotechnic-actuated valve assembly of claim 1 , wherein the second alloy is free of cobalt.8. The pyrotechnic-actuated valve assembly of claim 1 , wherein the second alloy contains at least 0.5 ...

VARIABLE FLOW VALVE

A variable flow valve having an externally threaded valve body, a valve element and an actuator that includes coil and a plunger assembly. The coil can be operated to move the plunger assembly to drive the valve element into engagement with a seat surface on a valve seat in the valve body. 1. A variable flow valve comprising:a valve body assembly having a valve body, a valve element guide, a valve element, a valve actuator guide, a first seal and a second seal, the valve body having an externally threaded section, a valve element chamber, an outlet port, and an inlet port, the valve element chamber defining a valve seat, the outlet port being formed through a first axial end of the valve body and intersecting the valve chamber radially outwardly of the valve seat, the inlet port having a first portion, which intersects the valve seat, and second portion that is in fluid communication with the first portion and which extends transverse to a longitudinal axis of the valve body, the valve element guide being received in the valve element chamber and defining a valve element channel and a rod channel that are coincident with the longitudinal axis of the valve body, the valve element being received in the valve element channel and being movable along the longitudinal axis between a first position, in which the valve element is abutted against the valve seat, and a second position in which the valve element is spaced apart from the valve seat by a predetermined distance, the valve actuator guide being received into the valve body and abutted against the valve element guide, the valve actuator guide including a guide bore formed therethrough coincident with the longitudinal axis, the first seal being received on and sealingly engaged to the valve body in a first seal location that is axially between the second portion of the inlet port and the first axial end of the valve body, the second seal being received on and sealingly engaged to the valve body in a second seal ...

METHOD OF MANUFACTURING A VALVE FOR AN INTERNAL COMBUSTION ENGINE

A method of manufacturing a valve for an internal combustion engine, comprises: (i) a primary step of forging a bulging portion at one end of a rod material to form a generally disk-shape valve head of the valve having a tapered periphery; (ii) an thickness adjustment step of machining an excessively thick portion of the valve head; and (iii) a secondary step of forging a peripheral region of the valve head to create radial slip deformations therein to form a valve face of the valve head. In the step of thickness adjustment, only the front end of the disk-shape valve head is machined without harming dense grain flow lines induced in the tapered face () in the primary forging while advantageously saving the valve material and reducing thickness adjustment time. In the secondary forging, the hardness of the valve face is further enhanced. 1. (canceled)2. A method of manufacturing a valve for an internal combustion engine , comprising:a step of primary forging in which a bulging portion at one end of a rod material is forged to form a generally disk-shape valve head of the valve by means of a primary forging die unit having a first die and a first punch;a step of adjusting the thickness of the disk-shape valve head formed in the step of primary forging by machining an excessively thick portion thereof; anda step of secondary forging in which a periphery of the disk-shape valve head is forged to create therein radial slip deformations by means of a secondary forging die unit having a second die and a second punch, the periphery being associated with a valve face that comes into contact with a valve seat of the internal combustion engine,the method characterized in thatthe primary die unit is provided on the die thereof for forging the valve head with a peripheral taper forming face for forming a tapered face associated with the valve face; anda predetermined tapered face that corresponds to the valve face is formed in the step of primary forging along the periphery of ...

VALVE APPARATUS, METHOD OF MANUFACTURING VALVE APPARATUS, AND METHOD OF REPAIRING VALVE APPARATUS

According to one embodiment, a valve apparatus includes a movable member operating in conjunction with opening and closing of a valve, and a stationary member in sliding or abutting contact with the movable member. The valve apparatus includes a cladding portion that is integrally formed on a sliding-contact surface or an abutting contact surface of at least one of the movable member or the stationary member. The cladding portion is formed by inducing a pulsed discharge between an electrode, which is formed of a molded body consisting mainly of a metal, and a treatment target portion of the movable member or the stationary member, so as to weld and deposit a material of the electrode on a surface of the treatment target portion. 1. A valve apparatus comprising:a movable member operating in conjunction with opening and closing of a valve, and a stationary member in sliding or abutting contact with the movable member; anda cladding portion that is integrally formed on a sliding-contact surface or an abutting contact surface of at least one of the movable member or the stationary member,wherein the cladding portion is formed by inducing a pulsed discharge between an electrode, which is formed of a molded body consisting mainly of a metal, and a treatment target portion of the movable member or the stationary member, so as to weld and deposit a material of the electrode on a surface of the treatment target portion.2. The valve apparatus according to claim 1 , wherein the movable member comprises a valve body or a valve rod claim 1 , and the stationary member comprises a seal ring in sliding contact with the valve body or a bushing in sliding contact with the valve rod.3. The valve apparatus according to claim 1 , wherein the movable member comprises a valve body claim 1 , and the stationary member comprises a valve seat in abutting contact with the valve body.4. The valve apparatus according to claim 1 , wherein the cladding portion comprises a penetrant diffusion layer ...

ASSEMBLING APPARATUS AND CONTROL METHOD

An assembling apparatus of this invention includes a main pallet and a sub pallet detachable from the main pallet, and can convey a cylinder head and parts thereof. The apparatus includes a mechanism disconnecting, from the main pallet, the cylinder head placed on the main pallet and lifting/lowering the cylinder head, a mechanism detaching the sub pallet from the main pallet and lifting/lowering the sub pallet, a mechanism holding the cylinder head lifted to a work operation region, an operation unit extracting a valve retainer from the sub pallet lifted to a part preparation region and assemble it to a cylinder head, and a device arranged between the work operation region and the part preparation region and detaching a pair of cotter pieces. 1. An assembling apparatus for assembling a valve retainer including a pair of cotter pieces to a cylinder head , comprising:a main pallet on which the cylinder head is placed;a sub pallet which is detachably attached to said main pallet and on which at least the valve retainer is placed;a conveyance mechanism configured to horizontally convey said main pallet;a lifting mechanism provided under a predetermined position of a conveyance track of said main pallet by said conveyance mechanism and configured to disconnect, from said main pallet, the cylinder head placed on said main pallet and lift/lower said cylinder head;a moving mechanism provided on one side of said lifting mechanism and configured to detach, from said main pallet, said sub pallet attached to said main pallet and lift/lower said sub pallet;a rotation mechanism configured to hold the cylinder head lifted to a work operation region by said lifting mechanism and roll the cylinder head about a horizontal axis;an operation unit including a retainer holding tool configured to hold the valve retainer, and configured to extract, by said retainer holding tool, the valve retainer from said sub pallet lifted to a part preparation region by said moving mechanism and ...

METHOD FOR MANUFACTURING VALVE BODY FOR SPOOL VALVE

An axial cast hole is formed to have a large diameter side end on one side at a draft angle. A large diameter hole is formed on the one side to form a stepped surface between the large diameter hole and the axial cast hole. The stepped surface has an inner periphery end located on a plane perpendicular to the axial direction. A tool is moved from the one side toward the other side coaxially with the axial cast hole to make contact with the stepped surface. The tool is moved subsequently to cut the inner periphery of the axial cast hole between the large diameter hole and the first port. The tool is moved subsequently to cut the inner periphery of the axial cast hole on the other side relative to the first port. 1. A method for manufacturing a valve body for a spool valve , the spool valve including:the valve body having an axial hole and a plurality of ports, the ports substantially perpendicularly intersecting with the axial hole and communicating the axial hole with an outside of the valve body, the ports arranged in an axial direction; anda spool slidable inside the axial hole in the axial direction, whereinthe ports includes a first port on one end side most in the axial direction, andthe axial hole has an axial hole portion on an other end side in the axial direction relative to the first port, the axial hole portion formed as a spool hole, in which the spool is slidable, the spool hole having a predetermined diameter X,the method comprising: 'an axial cast hole to have a large diameter side end on the one end side in the axial direction relative to the first port, the large diameter side end being at a draft angle and having a diameter smaller than the predetermined diameter X, and', 'forming, in a cast hole formation process,'}a plurality of cast holes as the ports to intersect substantially perpendicularly to the axial cast hole;forming, in a large diameter hole formation process, a large diameter hole on the one end side in the axial direction relative to ...

EXPLOSION-PROOF VALVE AND MANUFACTURING METHOD THEREFOR

An explosion-proof valve installed to a hole portion of a pressure vessel and valve opening when the pressure within the pressure vessel goes beyond a predetermined value so as to release the pressure integrally has a tubular portion inserted to the hole portion, an outside flange portion provided in one end portion of the tubular portion and engaging with an opening peripheral edge portion outside the vessel in the hole portion, a locking projection provided in the other end portion of the tubular portion and engaging with an opening peripheral edge portion in side the vessel in the hole portion, and a membrane portion provided in an inner peripheral side of the tubular portion and rupturing due to the pressure at the valve opening time, and has such a shape that an outer diameter of the outside flange portion is made smaller than an outer diameter of the locking projection. 1. (canceled)2. A manufacturing method of an explosion-proof valve installed to a hole portion of a pressure vessel from an outer side of said pressure vessel and valve opening when the pressure within said pressure vessel goes beyond a predetermined value so as to release said pressure , the explosion-proof valve integrally having a tubular portion which is inserted to said hole portion , an outside flange portion which is provided in one end portion of said tubular portion or in the vicinity thereof and engages with an opening peripheral edge portion outside the vessel in said hole portion , a locking projection which is provided in the other end portion of said tubular portion or in the vicinity thereof and engages with an opening peripheral edge portion in side the vessel in said hole portion , and a membrane portion which is provided in an inner peripheral side of said tubular portion and ruptures due to said pressure at the valve opening time , the explosion-proof valve being set such that an outer diameter of said outside flange portion is larger than an inner diameter of said hole ...

Brass Compression Ring Removal Tool

The unique advantages of this tool are the small size of the tool, and the simplicity of the tool. It is composed of parts. 1. The unique advantages of this tool are its small size and the simplicity of the tool.2. The tool consists of two parts , the claw and the screw; therefore the tool is very light and can be used with one hand where space is limited.3. The tool will not rust or become deformed. Not ApplicableNot ApplicableU.S. Pat. No. 6,637,089 Apr. 9, 2002 Compression Sleeve PullerU.S. Pat. No. 6,904,660 Jun. 14, 2005 Compression Ring PullerBrass pipes can be scarred when changing a water valve on toilets, etc. by forcing the brass compression ring off the water pipe, which results in water leaks. This invention removes the compression ring quickly without scarring or grooving the brass pipe. This results in faster repairs and greater customer satisfaction in time and materials.This Tool provides an answer for all plumbers and Do-It-Your-Selfers to replace water valves using this very inexpensive Brass Compression Ring Removal Tool. Other tools cost four times the price of this tool and because of this; few repairmen have the proper tool in their bag. Should the brass pipe get scarred or damaged the replacement can be very costly to both repairmen and customer.The Tool removes the compression ring without damage to the brass pipe. Without this tool the brass ring is frequently removed with pliers, a Dremel tool, or hack saw, all of which can score the brass pipe resulting in water leaks. The Tool frame is aluminum, light weight, and easy to manufacture. The screw has a collar at the end that is designed to fit inside the brass pipe. Turning the screw “in” allows the collar to center itself inside the brass pipe while the raised shoulder contacts the edge of the pipe to hold it firmly. The “claw” part of the tool pulls the valve nut and brass compression ring off the brass pipe leaving the brass pipe undamaged.The Brass Compression Ring Removal Tool will ...

Backflow Prevention and Method of Manufacture

A backflow prevention assembly is disclosed including a backflow prevention valve having a valve housing including a valve inlet end and a valve outlet end; a spool spacer of predetermined length having a first end and a second end; an inlet shut-off valve; and an outlet shut-off valve, wherein the spool spacer extends between the backflow prevention valve and one of the inlet shut-off valve and the outlet shut-off valve. The entire assembly, including the backflow prevention valve, the spool spacer, the inlet shut-off valve, and the outlet shut-off valve, is a certified assembly, certified by a certifying authority prior to installation. Methods of manufacturing a backflow prevention assembly and replacing a backflow prevention assembly are also disclosed. 120-. (canceled)21. A method of manufacturing a backflow prevention assembly comprising the steps of:receiving a measured length of an existing backflow prevention assembly between a fluid supply conduit to a fluid exit conduit, wherein the existing backflow prevention assembly includes an inlet shut-off valve, a backflow prevention valve, and an outlet shut-off valve;obtaining a replacement backflow prevention valve having a length different than the existing backflow prevention valve;obtaining an inlet shut-off valve and an outlet shut-off valve;securing the replacement backflow prevention valve between the outlet shut-off valve and inlet shut-off valve to form a replacement backflow prevention assembly, such that length of the replacement backflow prevention assembly, including the replacement backflow prevention value, the inlet shut-off valve, and the outlet shut-off valve, is equal to the measured length of the existing backflow prevention assembly;obtaining certification of the replacement backflow prevention assembly, including the replacement backflow prevention valve, the inlet shut-off valve, and the outlet shut-off valve by a certifying authority; andproviding an entire certified replacement backflow ...

EXCESS FLOW VALVE WITH FLEXIBLE SEALING MEMBER

An assembly for limiting excess flow includes a seat that provides a sealing surface and a diaphragm that is coupled to the seat. The diaphragm includes a seal portion and at least one leg extending between the seal portion and the seat. The seal portion is spaced apart from the sealing surface during normal flow conditions and is in engagement with the sealing surface when a predetermined flow condition is exceeded. 1. An assembly for limiting excess flow comprising:a seat providing a sealing surface; anda diaphragm coupled to the seat, the diaphragm including a seal portion and at least one leg extending between the seal portion and the seat, and wherein the seal portion is spaced apart from the sealing surface during normal flow conditions and is in engagement with the sealing surface when a predetermined flow condition is exceeded.2. The assembly of wherein the at least one leg comprises a plurality of legs that are circumferentially spaced apart from each other.3. The assembly of wherein the legs are moveable between a first position during normal flow conditions and wherein the legs are collapsed to a second position when the predetermined flow condition is exceeded.4. The assembly of wherein the seal portion comprises a solid body having an upstream side and a downstream side claim 2 , and wherein each leg has a first end attached to the downstream side and a second end directly attached to the seat.5. The assembly of wherein the seal portion comprises a solid body having an upstream side and a downstream side claim 2 , and wherein the diaphragm further includes a ring portion axially spaced from the seal portion claim 2 , and wherein each leg has a first end attached to the downstream side and a second end attached to the ring portion.6. The assembly of wherein the seat comprises a band having a central bore extending from an upstream end face to a downstream end face claim 5 , and wherein the sealing surface comprises a tapered surface portion formed along ...

Method and System of Valve Refurbishment

A valve assembly is disclosed with a housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports. The housing is made of a first metal with a yield strength. The assembly also has a chamber disposed between the inlet and outlet ports, wherein a vertical axis of the chamber is normal to longitudinal axes of the inlet and outlet ports. An annular groove is disposed about the interior annular face of the inlet port and the interior annular thee of the outlet port. A second metal is disposed within each of the annular grooves, the second metal having a yield strength greater than the yield strength of the first metal. 1. A valve assembly , comprising:a housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength;a chamber disposed between the inlet and outlet ports, wherein a vertical axis of the chamber is normal to longitudinal axes of the inlet and outlet ports;a sealing member disposed within the chamber;an annular groove disposed about the interior annular face of the inlet port;an annular groove disposed about the interior annular face of the outlet port; anda second metal disposed within the each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal.2. The valve assembly of claim 1 , wherein the annular groove disposed about the interior annular face of the inlet port and the annular groove disposed about the interior annular face of the outlet port is U-shaped.3. The valve assembly of claim 2 , wherein the annular groove disposed about the annular face of the outlet port circumscribes the outlet port and the annular groove disposed about the annular face of the inlet port circumscribes the inlet port.4. The ...

SYSTEMS AND METHODS FOR ASSEMBLING A BLOWOUT PREVENTER

An assembly tool for assembling a blowout preventer including a hub configured for releasably coupling with a hydraulic package of the blowout preventer, a support ring coupled to the hub, wherein the support ring is configured for releasably coupling with an outer housing of the blowout preventer, and a first seating assembly coupled to the hub, wherein the first seating assembly is configured to apply a force against the hydraulic package to seat the hydraulic package within the outer housing, and react the force applied to the hydraulic package against the outer housing. 1. An assembly tool for assembling a blowout preventer , comprising:a hub configured for releasably coupling with a hydraulic package of the blowout preventer;a support ring coupled to the hub, wherein the support ring is configured for releasably coupling with an outer housing of the blowout preventer; anda first seating assembly coupled to the hub, wherein the first seating assembly is configured to apply a force against the hydraulic package to seat the hydraulic package within the outer housing, and react the force applied to the hydraulic package against the outer housing.2. The assembly tool of claim 1 , wherein the first seating assembly comprises an inner fastener threadably engaging a displacement sleeve disposed about the inner fastener claim 1 , and wherein the inner fastener is configured to releasably couple with the hydraulic package.3. The assembly tool of claim 2 , wherein claim 2 , when the inner fastener is coupled to the hydraulic package and the support ring is coupled to the outer housing claim 2 , rotation of the displacement sleeve causes the inner fastener to be displaced through the displacement sleeve and seat the hydraulic package within the outer housing.4. The assembly tool of claim 1 , wherein the force applied against the hydraulic package reacts against a frictional force applied to the hydraulic package from the outer housing.5. The assembly tool of claim 1 , ...

Valve and method for manufacturing a valve

The invention refers to a valve, in which a valve housing is deformed and thereby a sliding sleeve pushes against a housing. The invention also refers to a method for manufacturing such a valve. 1. A valve , in particular a slide valve , having a longitudinal axis , which is provided witha housing,a valve housing, anda sliding sleeve, which extends along the longitudinal axis,wherein the housing has at least one bearing surface, against which the sliding sleeve rests,wherein the valve housing at least partially surrounds the sliding sleeve and is connected in a shear-resistant manner to the sliding sleeve at least in the direction of the housing,wherein the valve housing has a holding edge which lies radially on the outer side with respect to the longitudinal axis andwherein the housing has at least one holding element, which surrounds the holding edge, so that the valve housing is tensioned along the longitudinal axis by elastic deformation of the valve housing towards the housing.2. The valve of claim 1 , characterized in that the housing is made of metal claim 1 , and/or the valve housing is made of plastic material and/or the sliding sleeve is made of metal.3. The valve of claim 1 , characterized in that the housing has a fixing recess for the sliding sleeve claim 1 , wherein the bearing surface is positioned inside the fixing recess.4. The valve of claim 1 , characterized in that the valve housing completely encloses the sliding sleeve.5. The valve of claim 1 , characterized in that the valve housing is form-fittingly connected to the sliding sleeve.6. The valve of claim 1 , characterized in that the sliding sleeve has a circumferentially surrounding external groove claim 1 , in which a complementary bead of valve housing engages for forming a form-fitting connection.7. The valve of claim 1 , characterized in that the sliding sleeve has a circumferentially surrounding external bead claim 1 , which engages a complementary groove of valve housing in order to form ...

INTEGRAL PUSH FITTING AND VALVE WITH INTEGRAL PUSH FITTING AND METHOD OF MANUFACTURING SAME

A push fitting for a valve includes a body having a longitudinal axis along which a fluid can flow, the body defining an opening at a first end of the body. A push fitting assembly at the first end of the body includes a housing. The housing includes a first end which is integrally formed within a wall of the opening at the first end of the body and a crimpable second end which extends longitudinally beyond the first end of the body. The housing also includes a crimpable material such that the second end of the housing is crimpable to capture elements of the push fitting assembly at the first end of the body. 1. A method of making a push fitting , comprising:forming a body having a longitudinal axis along which a fluid can flow, the body defining an opening at a first end of the body, forming the body comprising forming a first end of a housing integrally within a wall of the opening at the first end of the body; andinstalling elements of a push fitting assembly inside the housing.2. The method of claim 1 , wherein forming the body comprises molding the body integrally with the housing.3. The method of claim 2 , wherein forming the body comprises injection molding the body integrally with the housing.4. The method of claim 1 , wherein the housing comprises a metallic material.5. The method of claim 1 , wherein the housing comprises one of copper and a copper alloy.6. The method of claim 1 , wherein forming the body comprises molding one of plastic claim 1 , Noryl claim 1 , and nylon.7. The method of claim 1 , wherein forming the body comprises injection molding one of plastic claim 1 , Noryl claim 1 , and nylon.8. The method of claim 1 , wherein the elements of the push fitting assembly installed inside the housing include a grip ring for gripping a tubular element connectable to the push fitting.9. The method of claim 1 , wherein the elements of the push fitting assembly installed inside the housing include an O-ring for sealing the push fitting.10. The method of ...

VALVE STEM AND PLUG CONNECTIONS AND STAKING TOOLS

Example valve stem and plug connections and example staking tools are described herein. An example apparatus includes a valve plug having a first side, a second side opposite the first side and a bore extending from the first side to the second side. A first portion of the bore is tapered from a first diameter to a second diameter smaller than the first diameter. A valve stem is disposed within the bore of the valve plug. The valve stem includes a first section, a second section and a third section between the first and second sections. The third section is tapered from a third diameter to a fourth diameter smaller than the third diameter. The tapers of the first portion of the valve plug and the third section of the valve stem, when engaged, create a frictional force that resists movement of the valve stem out of the bore. 1. An apparatus comprising: a first side;', 'a second side opposite the first side; and', 'a bore extending from the first side to the second side, a first portion of the bore being tapered from a first diameter to a second diameter smaller than the first diameter; and, 'a valve plug including a first section;', 'a second section; and', 'a third section between the first and second sections, the third section being tapered from a third diameter to a fourth diameter smaller than the third diameter, the third section of the valve stem engaged with the first portion of the bore, the tapers of the first portion of the valve plug and the third section of the valve stem creating a frictional force that resists movement of the valve stem out of the bore., 'a valve stem disposed within the bore of the valve plug, the valve stem including2. The apparatus of claim 1 , wherein a second portion of the bore has a substantially constant diameter equal to the second diameter.3. The apparatus of claim 2 , wherein a first length of the first portion is greater than a second length of the second portion.4. The apparatus of claim 1 , wherein the first section has a ...

SOLENOID VALVE AND MANUFACTURING METHOD OF THE SAME

A solenoid valve has a coil spring that biases a spool valve toward a solenoid portion, and an adjuster screw that is positioned to interpose the coil spring between the adjuster screw and the spool valve and that is screwed in an internally threaded portion of a sleeve so that its axial position is adjusted. The sleeve is swaged with a swaging tool etc. from an outer peripheral surface located on the outer peripheral side of the internally threaded portion of the sleeve, whereby the swaged part of the internally threaded portion is plastically deformed to the opposite side from the coil spring. The adjuster screw is thus fixed. 1. A solenoid valve , comprising:a solenoid portion having a plunger that moves in an axial direction according to a current supplied to an electro-magnetic coil;a cylindrical sleeve placed coaxially with the plunger and having an internally threaded portion formed on an inner peripheral surface of its end located on an opposite side from the solenoid portion;a spool valve that is accommodated in a valve hole formed in the sleeve and that slides on an inner surface of the sleeve according to the axial movement of the plunger;an elastic member that biases the spool valve toward the solenoid portion; andan adjusting screw that is positioned to interpose the elastic member between the adjusting screw and the spool valve, and that is screwed in the internally threaded portion of the sleeve so that its axial position is adjusted; whereinrotation of the adjusting screw relative to the sleeve is restricted by swaging the sleeve from an outer periphery of the internally threaded portion with a swaging tool, anda part of the internally threaded portion which is swaged with the swaging tool is plastically deformed to an opposite side from the elastic member.2. The solenoid valve according to claim 1 , whereina part of an outer peripheral surface of the sleeve which is swaged with the swaging tool is such a tilted surface that a distance from a central ...

VALVE FOR PREVENTING DISTORTION

Various valves capable of preventing distortion are disclosed. The valve comprises a metal member configured to have at least two sub metal members and a main body. Here, the sub metal members are included in the main body, and the main body is formed of plastic. 1. A valve comprising:a metal member configured to have at least two sub metal members; anda main body,wherein the sub metal members are included in the main body, and the main body is formed of plastic.2. The valve of claim 1 , further comprising:a liner,wherein the sub meal members surround the liner, a fluid flow space through which fluid flows is formed in the liner, the liner is formed of fluorine resin and includes a liner body member and a liner flange member formed at an end part of the liner body member, at least one of the sub metal members includes a sub metal body member and a sub metal flange member formed at an end part of the sub metal body member, the main body includes a main body member and a main body flange member formed at an end part of the main body member,a width of the sub metal flange member is higher than a width of the liner flange member, and the sub metal flange member surrounds the liner body member just beneath the liner flange member while the sub metal flange member closes to the liner flange member.3. The valve of claim 2 , wherein the liner flange member claim 2 , the sub metal flange member and the main body flange member form one flange claim 2 , and the flange is combined with a flange of a pipe or a flange of another valve.4. The valve of claim 2 , wherein at least one first hole into which a fixing member is inserted to combine the valve with a pipe and at least one second hole in which melt plastic is filled when an insert molding is performed are formed on the sub metal flange member.5. The valve of claim 2 , wherein each of the liner claim 2 , the sub metal members and the main body is in a body claim 2 , the sub metal members surround whole of the liner body ...

ENGINE VALVE FORGING SYSTEM

An engine valve forging system includes a molding forging die having a circular hole stem molding portion continued to a tip end of a head type molding portion, to mold an engine valve by extrusion-forging a material from the head type molding portion to the stem molding portion by an upper die, and a stem guide forging die which is coaxially disposed to communicate with a tip end of the stem molding portion, and has a guide portion for a stem portion of an engine valve extruded from the stem molding portion, and a plurality of stem curve restraining portions having a shape gradually tapering toward a central shaft line from a rear end portion to a tip end portion are formed continuously along the central shaft line of the guide portion in the guide portion, to be capable of manufacturing high-precision engine valves with less stem curve. 16.-. (canceled)7. An engine valve forging system comprising:a molding forging die for engine valve which has a circular hole shaped stem molding portion which is formed so as to be continued to a tip end of a head type molding portion, and extrusion-forges a material on the head type molding portion to the stem molding portion by an upper die; anda stem guide forging die which communicates with a tip end of the stem molding portion, and is disposed coaxially with the stem molding portion, and which has a stem curve restraining portion for a stem portion of an engine valve extruded from the stem molding portion, whereinthe stem curve restraining portion has a shape gradually tapering toward a central shaft line of the stem curve restraining portion over the entire area from a rear end portion to a tip end portion which is continued to a tip end of the stem molding portion.8. The engine valve forging system according to claim 7 , wherein a plurality of the stem curve restraining portions are formed continuously along the central shaft line of the stem curve restraining portions.9. The engine valve forging system according to claim 7 ...

VEHICLE BRAKE HYDRAULIC PRESSURE CONTROL APPARATUS AND METHOD FOR MANUFACTURING THE SAME

A vehicle brake hydraulic pressure control apparatus includes a base body and a solenoid valve. The solenoid valve is attached to an attachment hole which opens on one surface of the base body. A plurality of press-fitting portions that are press-fitted to an inner peripheral surface of the attachment hole are provided on an outer peripheral surface of the solenoid valve at an interval in a hole axis direction. Contact lengths, in the hole axis direction, between the inner peripheral surface of the attachment hole and two of the press-fitting portions are different from each other. 1. A vehicle brake hydraulic pressure control apparatus , comprising:a base body; anda solenoid valve that is attached to an attachment hole which opens on one surface of the base body, whereina plurality of press-fitting portions that are press-fitted to an inner peripheral surface of the attachment hole are provided on an outer peripheral surface of the solenoid valve at an interval in a hole axis direction,contact lengths, in the hole axis direction, between the inner peripheral surface of the attachment hole and two of the press-fitting portions are different from each other.2. The apparatus according to claim 1 , whereina communication hole that communicates with a fluid line of the base body opens on the outer peripheral surface of the solenoid valve, andthe two of the press-fitting portions are disposed across an opening portion of the communication hole.3. The apparatus according to claim 1 , whereinhole guide portions are provided on the inner peripheral surface of the attachment hole, anda diameter of each hole guide portion gets larger as it goes from a press-fitting region of the corresponding press-fitting portion toward the one surface of the base body.43. The apparatus according to claim 1 , wherein is larger than that between the inner peripheral surface of the attachment hole and the other of the two of the press-fitting portions and', 'is smaller than a value obtained by ...

FRANGIBLE SHAPE MEMORY ALLOY FIRE SPRINKLER VALVE ACTUATOR

A temperature-activated valve for a conventional fire sprinkler utilizing a hyperelastic single-crystal shape memory alloy is described. The shape-memory element expands as it is heated, forcing a bolt to break, thereby opening the sprinkler valve. The devices described are less susceptible to accidental breakage than conventional actuators, and have fewer moving parts. Transition temperature of the shape memory alloy can be tuned to a narrow range. 1. Method of making a thermally-activated sprinkler valve assembly comprising:tuning a shape-memory element comprising single-crystal shape memory alloy to exert a pre-determined force at a pre-determined temperature;forming a temperature-sensitive actuator by coupling a frangible bolt to the shape-memory element so that the shape-memory element is compressed; andcoupling the actuator to a linkage, wherein the linkage is configured to couple with the valve of a fluid passageway having a valved outlet to oppose fluid pressure and maintain the valve closed.2. The method of claim 1 , further comprising connecting the fluid passageway to a fluid source.3. The method of claim 1 , wherein the step of tuning comprises tempering the shape-memory alloy by a heat treatment process that causes controlled partial precipitation of Al.4. The method of claim 1 , further comprising coupling the linkage to the valve of the fluid passageway.5. The method of claim 1 , wherein the step of coupling the actuator to the linkage comprises coupling the actuator between two brackets forming the linkage.6. The method of claim 1 , further comprising matching the plateau stress of the shape-memory element to the ultimate tensile strength of the bolt. This application is a divisional application of U.S. patent application Ser. No. 12/019,553, titled “FRANGIBLE SHAPE MEMORY ALLOY FIRE SPRINKLER VALVE ACTUATOR,” filed Jan. 24, 2008, Publication No. US-2010-0025050-A2, which claims the benefit under 35 U.S.C. §119 of U.S. Provisional Patent Application ...

PISTON BORE UNDERCUT AND METHODS OF MANUFACTURING A PISTON BORE UNDERCUT FOR A SERIES PROGRESSIVE DIVIDER VALVE

A series progressive divider valve comprises a valve body and pistons. The valve body comprises a fluid inlet, piston bores, outlet bores, porting and undercuts. The fluid inlet extends into an exterior of the valve body. The piston bores extend through the valve body from a first end to a second end. Each piston bores includes a piston. The outlet bores extend into the valve body, each outlet bores comprises a first set of outlet bores and a second set of outlet bores. The porting forms a plurality passageways connecting the piston bores to each other and with the outlet bores such that when high pressure fluid is applied to the inlet each of the pistons reciprocates from the first end to the second end in sequence. An undercut is located at an intersection between each passageway and piston bore. 1. A method of manufacturing a series progressive divider valve , the method comprising:drilling a plurality of piston bores from a first end to a second end into a parallelepiped valve block;machining a plurality of undercuts in the plurality of piston bores between the first and second ends; andmachining a plurality of passages connecting the piston bores to each other, each of the passages extending from an end of a piston bore to an undercut.2. The method of manufacturing a series progressive divider valve of wherein the step of machining the plurality of undercuts comprises using a Woodruff tool to machine the undercuts.3. The method of manufacturing a series progressive divider valve of wherein the step of machining a plurality of undercuts comprises:machining a void adjacent a piston bore to increase a cross-sectional area of the piston bore.4. The method of manufacturing a series progressive divider valve of wherein the void comprises a cylindrical void surrounding the piston bore along an axial length to increase a diameter of the piston bore at right angles.5. The method of manufacturing a series progressive divider valve of wherein the step of machining a ...

METHOD FOR MAKING VALVE DEVICE

An opening degree sensor produces a sensor output corresponding to a valve opening degree of a valve, and includes a memory into which the sensor output corresponding to the valve opening degree is written. When performing a first half process, flow rates of more than one valve device are measured, a flow rate error is calculated based on an average flow rate obtained by averaging the measured flow rates, and the sensor output corresponding to the valve opening degree into which the flow rate error is incorporated is obtained. When performing a second half process, the sensor output corresponding to the valve opening degree obtained in the first half process is written into the memory of the valve device whose flow rate is not measured. 1. A method for making a valve device including:a passage through which fluid passes;a valve that makes opening degree adjustment of the passage; andan opening degree sensor that produces a sensor output corresponding to a valve opening degree of the valve and that includes a memory into which the sensor output corresponding to the valve opening degree is written, the method comprising: the valve device is one of more than one valve device; and', measuring flow rates of the more than one valve device;', 'calculating a flow rate error based on an average flow rate obtained by averaging the measured flow rates; and', 'obtaining the sensor output corresponding to the valve opening degree into which the flow rate error is incorporated; and, 'the performing of the first half process includes], 'performing a first half process, whereinperforming a second half process, wherein the performing of the second half process includes writing the sensor output corresponding to the valve opening degree obtained in the first half process into the memory of the valve device whose flow rate is not measured.2. The method according to claim 1 , further comprising:measuring a flow rate of the valve device that has completed writing the sensor output into ...

Fluid Control Shutoff and Pump Assembly For A Beverage Dispensing Machine

A shutoff switch for dispensing mixed beverages is presented. The shutoff switch includes a syrup inlet receiving syrup and a syrup outlet dispensing the syrup to a pump. The shutoff switch also includes a water inlet receiving water, and a water outlet dispensing the water to a either the pump or a dispensing point. Two distinct inlets and outlets for syrup and water prevent the syrup and water being mixed in the shutoff switch. The shutoff switch further includes a pressure responsive member that deforms based on pressure changes in the shutoff switch. When the deformation of the pressure responsive member reaches a threshold, an electrical gate in direct communication with the pressure responsive member opens, turning of a pump of the beverage dispensing system. Valves in either chamber of the shutoff switch can also be used as a redundant mechanical way to stop flow in the system. 1. A shutoff switch comprising:a housing comprising a first inlet that receives a first fluid from upstream of the first inlet, a first outlet that passes the first fluid downstream of the first outlet, and a cavity fluidly coupling the first inlet to the first outlet;a pressure responsive member in direct fluid communication with the cavity, and biased to a first position;wherein the pressure responsive member translates to a second position in response to a pressure change in the cavity; andan electrical gate operated by movement of the pressure responsive member.2. The shutoff switch of claim 1 , wherein the pressure responsive member closes the electrical gate when in the first position.3. The shutoff switch of claim 1 , wherein the pressure responsive member opens the electrical gate when in the first position.4. The shutoff switch of claim 1 , wherein the housing contains a first chamber in fluid communication with the first inlet and the first outlet claim 1 , and a second chamber in fluid communication with a second inlet and a second outlet claim 1 , wherein the first and ...

VALVE APPARATUS AND METHOD OF MANUFACTURING THE SAME

According to one embodiment, a cladding portion is integrally formed on a sliding-contact surface of a valve rod or a valve body, which serves as a movable member, wherein the cladding portion is formed by inducing a pulsed discharge between an electrode which is formed of a molded body consisting mainly of a metal and a treatment target portion of the valve rod or the valve body, so as to weld and deposit a material of the electrode on a surface of the treatment target portion. A surface layer is integrally formed on a sliding-contact surface of a bushing or a sleeve, which serves as a stationary member, wherein the surface layer is formed by forming a first coating film by surface-hardening heat treatment using a metallic cementation. 1. A valve apparatus comprising:a cladding portion that is integrally formed on a sliding-contact surface of either a valve rod or a valve body, which serves as a movable member, wherein the cladding portion is formed by inducing a pulsed discharge between an electrode, which is formed of a molded body consisting mainly of a metal, and a treatment target portion of either the valve rod or the valve body, so as to weld and deposit a material of the electrode on a surface of the treatment target portion; anda surface layer that is integrally formed on a sliding-contact surface of either a bushing or a sleeve, which serves as a stationary member, wherein the surface layer is formed by forming a first coating film by surface-hardening heat treatment using a metallic cementation,the sliding-contact surface of either the valve rod or the valve body and the sliding-contact surface of either the bushing or the sleeve being put in sliding contact with each other in accordance with a valve opening/closing operation.2. A valve apparatus comprising:a cladding portion that is integrally formed on a sliding-contact surface of either a valve rod or a valve body, which serves as a movable member, wherein the cladding portion is formed by inducing a ...

METHOD FOR PRODUCING A HOLLOW ENGINE VALVE

The present invention provides a method for producing a hollow engine valve, with which the production process can be simplified and the processing precision can be improved. To this end, the present invention provides a method for producing a hollow engine valve () which is provided with a valve main body () in which a hollow hole () is formed along a valve umbrella part () and a hollow shaft part (), wherein a solid round bar () forming the material of the valve main body () is moulded to a semi-finished article () by means of a single hot-forging process, the semi-finished article () is subjected to rotary swaging whereby the semi-finished article () is moulded into a semi-finished article (), the semi-finished article () is subjected to necking whereby the semi-finished article () is moulded into the valve main body () , and a shaft end sealing member () is joined to the end part of the hollow shaft part () of the valve main body (). 1. A method for producing a hollow engine valve including a valve body in which a hollow bole extending through a valve umbrella portion and a hollow stem portion connected to the valve umbrella portion is formed , characterized in that the method comprises:shaping a solid round bar which is a raw material of the valve body into a valve body semi-finished product in which a semi-finished product hollow hole is formed, by performing hot forging once, the semi-finished product hollow hole corresponding to the hollow hole and extending through a semi-finished product valve umbrella portion corresponding to the valve umbrella portion and a semi-finished product hollow stem portion corresponding to the hollow seem portion;subjecting the valve body semi-finished product to a rotary swaging process in which an outer peripheral surface of the semi-finished product hollow stem portion is pressed while the valve body semi-finished product is rotated, and thereby reducing a diameter of the semi-finished product hollow stem portion and ...

MODULAR STOP FOR VALVE

A modular stop is provided for ball valves, such as those used as drill stem safety valves. The modular stop can be a replaceable component in valves for use with stems used to rotate a ball valve in the valve's body. The modular stop can bear the wear associated with the operation of ball valves and when the modular stop has exceeded its usable service life, it can be replaced without replacing the whole of the valve body. The modular stop can be used in new valve manufacture as well as in the retrofitting or remanufacturing of existing valves. 1. A modular stop for use in a valve , the valve comprising a tubular body and at least one opening disposed through a sidewall thereof , the at least one opening providing communication to a valve chamber disposed within an interior of the body , the at least one opening providing access to a stem configured for turning a ball valve disposed in the tubular body , the stem comprising a cylindrical portion comprising a longitudinal axis extending therethrough , and a cam plate disposed on one end of the cylindrical portion wherein the cam plate is substantially perpendicular to the longitudinal axis , the cam plate comprising at least one cam lobe , the body further comprising a first relief disposed around the at least one opening in the interior adjacent to the valve chamber , the modular stop comprising:a) a tubular neck portion comprising a first end and a second end, the first end configured for slidable fit into the at least one opening when inserted therein, the tubular neck portion defining a first passageway between the first and second ends, the first passageway configured for slidable fit with the cylindrical portion of the stem when the cylindrical portion is inserted therein; andb) a base portion disposed on the second end, the base portion larger in diameter than the tubular neck portion, the base portion configured for insertion into the first relief when the tubular neck portion is inserted into the at least ...

SHUTTLE VALVE WITH A CASING ASSEMBLY

A shuttle valve and a method of fabricating a shuttle valve. In one embodiment, a shuttle valve comprises a casing assembly, a sleeve, and a spool slidable within the sleeve. The casing assembly includes an inlet casing having first and second inlet ports, an inlet casing coupling port, and an inlet fluid passageway providing fluid communication between the first inlet port, the second inlet port, and the inlet casing coupling port. The casing assembly further includes an outlet casing having an outlet port, an outlet casing coupling port, and an outlet fluid passageway providing fluid communication between the outlet port and the outlet casing coupling port. The outlet casing coupling port is removably coupled to the inlet casing coupling port. The sleeve is disposed in the inlet fluid passageway of the inlet casing. 1. A shuttle valve , comprising: an inlet casing having a first inlet port, a second inlet port coaxial with the first inlet port, an inlet casing coupling port, and an inlet fluid passageway providing fluid communication between the first inlet port, the second inlet port, and the inlet casing coupling port; and', 'an outlet casing having an outlet port, an outlet casing coupling port, and an outlet fluid passageway providing fluid communication between the outlet port and the outlet casing coupling port;', 'wherein the outlet casing coupling port is removably coupled to the inlet casing coupling port;, 'a casing assembly that includesa sleeve disposed in the inlet fluid passageway of the inlet casing; anda spool slidable within the sleeve.2. The shuttle valve of further comprising:a strainer;wherein the inlet casing coupling port includes a cylindrical recess, and the strainer is disposed in the cylindrical recess; andwherein the outlet casing coupling port includes a cylindrical member fitted in the cylindrical recess to abut the strainer.3. The shuttle valve of wherein:the cylindrical member includes a seal groove, and a seal member is disposed in ...

PROSTHETIC VALVE WITH LEAFLET CONNECTORS

A unitary flexible sheet is folded to define: (i) a panel, defining a plane, and having a first side facing in a first direction away from the plane, (ii) a first tab, disposed on the first side of the panel, and protruding in the first direction away from the panel, and (iii) a second tab, disposed on the first side of the panel, and protruding in the first direction away from the panel. Between the first tab and the second tab are secured (i) a first-leaflet commissural portion of a first prosthetic leaflet, and (ii) a second-leaflet commissural portion of a second prosthetic leaflet. At the first tab, the sheet is folded to define a first cushion at a downstream edge of the first tab. At the second tab, the sheet is folded to define a second cushion at a downstream edge of the second tab. 2. The apparatus according to claim 1 , further comprising a separate flexible sheet claim 1 , sandwiched between the first-leaflet commissural portion and the second-leaflet commissural portion.3. The apparatus according to claim 1 , wherein the first cushion and the second cushion are disposed downstream of the first prosthetic leaflet and the second prosthetic leaflet.4. The apparatus according to claim 1 , wherein:the sheet is folded such that the first tab has a first-tab outer layer and a first-tab inner layer, and the second tab has a second-tab outer layer and a second-tab inner layer,the first-leaflet commissural portion is disposed between the first-tab inner layer and the second-tab inner layer, andthe second-leaflet commissural portion is disposed between the first-tab inner layer and the second-tab inner layer.5. The apparatus according to claim 4 , wherein the first tab defines a downstream opening between the first-tab inner layer and the first-tab outer layer claim 4 , and the second tab defines a downstream opening between the second-tab inner layer and the second-tab outer layer.6. The apparatus according to claim 4 , wherein:the sheet defines a first-tab fold ...

DOUBLE ECCENTRIC VALVE

A double eccentric valve includes a valve seat having a seat surface, a valve element having a sealing surface, a passage in which the valve seat and the valve element are arranged, and a rotary shaft which rotates the valve element attached to an attaching part of the rotary shaft. With respect to the valve element and the valve hole, a main axis of the rotary shaft is doubly eccentric in a passage direction and a direction perpendicular to the passage. By rotation about the main axis, the valve element moves between a fully closed position where the sealing surface contacts the seat surface and a fully open position where the sealing surface is furthest away from the seat surface. A second axis of the attaching part extends parallel to the main axis and eccentrically in a radial direction of the rotary shaft from the main axis. 1. A double eccentric valve comprising:a valve seat including a valve hole and an annular seat surface formed on an edge of the valve hole;a valve element having a circular disc shape and including an annular sealing surface formed on an outer periphery, the sealing surface corresponding to the seat surface;a passage allowing a fluid to flow through, the valve seat and the valve element being placed in the passage; anda rotary shaft to rotate the valve element,the rotary shaft having an axis extending across the passage and in a direction perpendicular to the passage, the rotary shaft being positioned eccentrically from a center of the valve hole in an extending direction of the passage and in a direction perpendicular to the passage, so that the valve element is configured to rotate about the axis of the rotary shaft between a fully closed position where the sealing surface contacts with the seat surface and a fully open position where the sealing surface is furthest away from the seat surface,wherein the rotary shaft includes an attaching part to which the valve element is attached, and, wherein when the axis of the rotary shaft is a main ...

THERMOSTATIC ASSEMBLE AND MANUFACTURING METHOD THEREFOR

A thermostatic assembly (c) and a manufacturing method therefor. The thermostatic assembly (c) comprises a metal casing (), a housing (), a heat sensitive material (), a diaphragm () and a piston (). A metal structural body () is formed in a chamber () of the metal casing (), and the metal structural body () comprises countless granular metal powders (), and countless cavities () mutually communicating with one another. The metal powders () are mutually consolidated with one another, and the metal powders () located at a peripheral position are mutually consolidated with the inner wall surface () of the metal casing (). The cavities () are defined by gaps naturally formed among the metal powders (), and between the inner wall surface () of the metal casing () and each adjacent metal powder (). The heat sensitive material () is filled and injected into the cavities () in the form of a liquid. Through the design of using an integrally sintered metal structural body () and filling the heat sensitive material () into the cavities (), heat conduction efficiency can be greatly improved, thereby shortening the reaction time of the thermostatic assembly (c). 1. A thermostatic assembly comprising:a metal casing soaked in a fluid, and the metal casing including a tubular section, a bottom segment for closing the tubular section, and an accommodating portion extending outwardly from a top end of the tubular section; wherein between the tubular section and the bottom segment is defined a chamber;a housing including a central channel and a seat located at a bottom end thereof; wherein the seat is fixed in the accommodating portion of the metal casing;a heat sensitive material filled in the chamber of the metal casing and expanding and contracting based on a mixed temperature of cold water and hot water;a diaphragm disposed between the housing and the metal casing to separate the housing from the heat sensitive material;a piston secured in the central channel of the housing and ...

GAS FLOW FUEL METERING

A fuel metering valve includes a valve body housing a valve element in an interior chamber between an inlet port and an outlet port, an actuator coupled to move the valve element relative to the valve body, and a controller configured to regulate the position of the valve body. The valve element regulates a flow of fuel through the valve body. The controller regulates the position of the valve body via an actuator based on measurements by differential and absolute pressure sensors to achieve a target mass flow rate of the fuel through the valve body. The differential pressure sensor is calibrated for accuracy only across a limited scale range based on a predetermined maximum subsonic pressure. 1. A fuel metering valve , comprising:a valve body housing a valve element in an interior chamber between an inlet port and an outlet port, the valve element regulating a flow of fuel through the valve body;an actuator coupled to move the valve element relative to the valve body;a controller configured to regulate the position of the valve body via the actuator based on differential and absolute pressure measurements to achieve a target mass flow rate of the fuel through the valve body; anddifferential and absolute pressure sensors arranged to provide the pressure measurements,wherein the differential pressure sensor is calibrated for accuracy only across a limited scale range based on a predetermined maximum subsonic differential pressure.2. The fuel metering valve of claim 1 , wherein the controller is configured to identify a sonic or subsonic flow condition across the valve element based on the pressure measurements claim 1 , and wherein the controller is further configured to:in response to identifying a subsonic flow condition, implement a first set of one or more flow equations to achieve the target mass flow rate; andin response to identifying a sonic flow condition, implement a second set of one or more different flow equations to achieve the target mass flow rate.3. ...

VALVE, FLUID CONTROL STRUCTURE, FLUID DEVICE AND METHOD OF MANUFACTURING VALVE

A valve disposed at a flow path includes: a substrate having a first surface in which a hole having an opening section is formed; and a diaphragm member fixed to at least part of a wall surface of the hole and in which at least a central portion has a thin film shape, wherein a flow of a fluid in the flow path is controlled by deforming the diaphragm member. 1. A valve disposed at a flow path , the valve comprising:a substrate having a first surface in which a hole having an opening section is formed; anda diaphragm member fixed to at least part of a wall surface of the hole and in which at least a central portion has a thin film shape,wherein a flow of a fluid in the flow path is controlled by deforming the diaphragm member.2. The valve according to claim 1 , whereinthe first surface of the substrate is a fluid contact surface, and the diaphragm member controls the flow of the fluid in the flow path by deforming in a direction perpendicular to an axis of the flow path.3. The valve according to claim 1 , whereinthe diaphragm member is disposed at the opening section side of the hole.4. The valve according to claim 1 , whereina thickness of an outer edge section of the diaphragm member in contact with the wall surface of the hole is larger than that of the central portion of the diaphragm member.5. The valve according to claim 1 , whereina first surface of the diaphragm member facing the first surface of the substrate is a plane substantially parallel to the first surface of the substrate, andat least a central portion of a second surface of the diaphragm member opposite to the first surface of the diaphragm member has a recessed concave shape.6. The valve according to claim 1 , whereinin a cross-section in a thickness direction of the substrate,a first side of the diaphragm member facing the first surface of the substrate is a straight line substantially parallel to a first side that constitutes the first surface of the substrate, andat least a central portion of a ...

CONTAINER LID AND VALVE

A lid for use with a fluid container includes a body member and a valve. The body member defines an aperture and includes a central portion that extends to an outer periphery configured to couple to a rim of a fluid container. In one embodiment, the body member and the valve and connected by an interconnecting portion which are formed as an integral single piece structure. The valve has a first portion directly secured to the bottom surface of the body member and a second free end portion that extends from the first portion. The second free end portion includes a protuberance and is movable relative to the first portion between a free state in which the protuberance seals the aperture and a depressed state obtained in response to downward deflection of the central portion of the body member relative to the outer periphery in which the aperture is unsealed.

METHODS AND APPARATUS TO ACCESS AND ALIGN SEALING DISCS

Methods and apparatus to access and align sealing discs are disclosed herein. An example apparatus includes a cage of a fluid regulator, where the cage has a central aperture, and a valve stem to be received by the central aperture. The example apparatus also includes a diaphragm coupled to the valve stem, where an integral protrusion of the cage is to constrain a peripheral edge of the diaphragm against a removable portion of a valve body when the cage is coupled to the valve body.

SERVO VALVE WITH IMPROVED SEALING AND METHOD OF MANUFACTURING THE SAME

A servovalve includes a torque motor section and a hydraulic section. The torque motor section may comprise first and second opposing pole pieces and first and second permanent magnets may be positioned between these first and second pole pieces. The torque motor section also comprises an armature/flapper assembly which comprises a torsion bridge, an armature plate and a flapper that is connected at a first end to the armature plate. The flapper extends from said armature plate along a first longitudinal axis X. The armature plate may extend between the first and second permanent magnets and along a second longitudinal axis Y that is perpendicular to the first axis X. The hydraulic section comprises: a housing that comprises a body section and a chimney section. The chimney section extends from the body section to a first end. 1. A servovalve comprising: a torsion bridge;', 'an armature plate; and', 'a flapper connected at a first end to said armature plate, said flapper extending from said armature plate along a first longitudinal axis X;', 'wherein the armature plate extends along a second longitudinal axis Y that is perpendicular to said first axis X; and, 'an armature/flapper assembly comprising, 'a torque motor section that comprises a housing that comprises a body section and a chimney section, said chimney section extending from said body section to a first end, said chimney section having an outer surface and an internal hollow channel extending along said first longitudinal axis X and from said first end and into said body section;', 'wherein said flapper is positioned so as to extend within said internal hollow channel; and, 'a hydraulic section that comprisesmeans for sealing said torque motor section from said hydraulic section, said sealing means being positioned on said outer surface of said chimney section at said first end;wherein said torsion bridge is provided around said sealing means, so that said sealing means contacts both an inner surface of ...