КЛАПАН ДЛЯ ТЕКУЧЕЙ СРЕДЫ

ДВОЙНОЙ СИЛОВОЙ КЛАПАН С ИНТЕГРИРОВАННЫМ УСТРОЙСТВОМ УРАВНОВЕШИВАНИЯ ДАВЛЕНИЯ

... 1. Двойной силовой клапанный узел, имеющий единый корпус, содержащий:левое силовое клапанное устройство (12), расположенное в корпусе (16), имеющее левую первую уравновешивающую камеру (41), и правое силовое клапанное устройство, имеющее правую первую уравновешивающую камеру;нагнетательный канал (50, 50'), расположенный в корпусе (16);левый золотниковый узел (34), расположенный в левом силовом клапанном устройстве (12), приводимый в действие оператором для избирательного обеспечения сообщения по текучей среде нагнетательного канала (50, 50') с левым каналом (52) торможения, и правый золотниковый узел, расположенный в правом силовом клапанном устройстве (14), приводимый в действие оператором для избирательного обеспечения сообщения по текучей среде нагнетательного канала (50, 50') с правым каналом (52') торможения;при этом левый канал (52) торможения расположен в корпусе в сообщении по текучей среде с левой первой уравновешивающей камерой (41), а правый канал (52') торможения расположен ...

WEGEVENTIL MIT MEHREREN SCHALTSTELLUNGEN

Hydraulik-Stossdaempfer fuer Steuerregler von Fluessigkeitsverteilern zum Aufrechterhalten der Hoehenlage eines Fahrzeugaufbaues oder -rahmens

Hydraulikventil mit integrierten Dichtungen

Proportionalmagnetventil

Steuerkolbenventilsystem

Steuerkolbenventilsystem mit: einem Ventilhauptkörper (62), in dem in einer Anordnungsrichtung von einer Seite zu einer anderen Seite ein Eingangsanschluss (p1), dem ein Eingangsdruck zugeführt wird, ein Ausgangsanschluss (p2), der einen Ausgangsdruck ausgibt, und ein Ablassanschluss (p4), der den Eingangsdruck abgibt, ausgebildet sind; und einem Steuerkolben (26), der so eingebaut ist, dass er in Bezug auf den Ventilhauptkörper (62) frei vor und zurück fahrbar ist und der in der vorstehend beschriebenen Anordnungsrichtung einen ersten Steg (68), eine Rille (79), die benachbart zu dem ersten Steg (68) ausgebildet ist, und einen zweiten Steg (70) hat, der benachbart zu der Rille (79) ausgebildet ist, wobei die Rille (79) in der vorstehend beschriebenen Anordnungsrichtung einen ersten sich verjüngenden Abschnitt (86), der von dem ersten Steg (68) zu einem Halsabschnitt (85) ausgebildet ist, den Halsabschnitt (85), und einen zweiten sich verjüngenden Abschnitt hat; dadurch gekennzeichnet, ...

Pneumatikventilgruppe mit einfacher Installierung und einfacher Wartung

Handbetaetigte Steuereinrichtung fuer einen Arbeitszylinder

Vorgesteuertes Wahlventil

Hydraulische Ventilanordnung in Form einer Patrone

SERVO-VALVES

... 1375924 Valves SOC ANON AUTOMOBILES CITROEN 14 Feb 1972 [17 March 1971] 6828/72 Heading F2V The fluid-pressure in a conduit 10 is dependent upon the force f applied to a valve 1 which connects the conduit 10 with a supply line 9 or an exhaust 12, the force f being opposed by the pressure in conduit 10. The conduit pressure is applied to the valve through a piston 29 and a spring 32, the movement of the piston also being influenced by a stiffer spring 31 in a chamber 23 connected to an exhaust reservoir 11. The piston 29 and spring abutment 30 may be formed as a single member and the springs 31, 32 may each be replaced by a plurality of springs providing a non-linear law. The force f may be produced by an electrical torque motor.

CONTROL VALVE WITH METERING TYPE VALVE SPOOL

... 1376657 Valves KOEHRING CO 21 Jan 1972 [17 May 1971] 3035/72 Heading F2V A control valve has a bore 11 to which service, feeder and tank passages 14, 16, and 17 open and a spool 12 with a land L2 having notches 32, 33 at its opposite ends so that in one working position of the spool fluid flows from the passage 16 through the notches 32 and a passage 26 to the service passage 14 while in a second working position fluid flows from the passage 14 through the notches 33 to the passage 17. The spool may be of the open-centre type with a similar land L6 to control the supply and exhaust of fluid concurrently with the land L2 to opposite ends of a ram 30. The supply and return passages 21, 22, 23 at the centre of the spool are controlled by lands L3, L5 and a land L4 having notches 34, 35. The forces due to fluid flow opposing movement of the spool are reduced by the arrangement of notches each of which is formed as shown in Fig. 4 with its lower surface at an angle of 5 to 25 degrees and preferably ...

Safety valve for hydraulic systems

... 1,145,604. Power steering. DANFOSS A/S. 17 March, 1967 [26 March, 1966], No. 12722/67. Heading B7H. [Also in Division F2] A power steering circuit includes an hydraulic actuator 9, 10, 11, connected to the steered wheels, a control unit 4 connected with a steering wheel, a pump 3 driven by a motor 2, a reservoir 1, and a safety valve 18, see Division P2, to relieve fluid pressure from either one of conduits 16 and, 17 leading to the actuator, when an external force acts upon the steered wheels, e.g. if they strike an obstacle. The valve has a single ball closure (23), Fig. 2 (not shown), loaded by a spring (24), and is arranged, when a pressure builds up in one conduit, to relieve to the other or to the reservoir 1.

Hydraulic circuit for turning

JAM COMPENSATING CONTROL VALVE

FLUID CONTROL VALVE

FLUID CONTROL VALVE

In a hydraulic spool valve 40 of the edge control type the peripheral ends 31, 33 of a spool land 47 cooperate with a radial service port 41 to define the degree of opening of the port 41 to supply or return port 19. The spool 25 is located in a sleeve 14, itself located in a housing 11 and O-ring seals 22', 22'' inhibit leakage between sleeve and housing beyond the seals. Leakage fluid up to the seals exerts a contracting force onto the sleeve and when the spool is in a neutral position closing the service port striction occurs between the sleeve and the end 36 of the spool land closest to the return port. Both the service port in the sleeve and the spool are constructed such that with the spool in the neutral position a groove 48 in the spool land 47 extends towards the return port 19 so that the end 50 of the groove is at least in line 51 with the O-ring seal 22' and the supporting end region 36 of the spool land, inevitably contacting the sleeve, does so at an axial part not subjected ...

Pressure balance valve

A statically and dynamically pressure balanced fluid control valve (10). The valve (10) contains a spool (24) that is moved within an inner chamber (26) of a valve housing (28) by a pair of solenoids (34, 36). The ports are symmetrically located on each side of a center port (20), wherein the resultant fluid forces on the spool (24) are in opposite directions. The opposing forces create a net fluid force of approximately zero, so that the spool (24) is dynamically pressure balanced when the valve (10) is switched to a new position. The spool (24) also has an inner channel (40) and a pair of end openings (42) that are in fluid communication with the inner chamber (26) of the valve (10). When the spool (24) is pulled to a new position, the end openings (42) and inner channel (40) allow fluid within the inner chamber (26) to flow out of the space between the end of the spool (24) and the housing (28).

Vehicle suspension system

... 965,655. Tractor/semi-trailer fluid suspensions. DUNLOP RUBBER CO. Ltd. Jan. 19, 1961 [Feb. 6, 1960], No. 4290/60. Heading B7D. A fluid pressure suspension system for a tractor/semi-trailer assembly comprises fluid springs 13 associated with the rear wheels of the tractor, a coupling device between the tractor and semi-trailer and means associated with the coupling device automatically to exhaust the blind springs when the coupling device is operated to allow the tractor and semi-trailer to separate. The tractor (Fig. 3) comprises a rear axle 10 attached on each side to a beam 11 supported by a spring 13 with an associated surge tank 14 and levelling valve 15. The tractor is provided with a ramp 7 which lifts the semi-trailer up off its supporting bogey when the tractor is reversed to pick up the semitrailer. Coupling is effected by clamping a pair of jaws around a pin on the semi-trailer. The jaws are operated either manually or automatically by lever 9 which is connected to a two-way ...

PUSH-BUTTON TYPE VALVE

Hydraulic spool valves

... 1,105,451. Fluid-pressure servomotor systems. SPERRY RAND Ltd. July 1, 1964 [July 5, 1963], No. 26703/63. Heading G3P. [Also in Division F1 A spool valve for controlling a reversible hydraulic motor comprises a spool 16 having a threaded portion 18 which co-operates with a nut 23. The spool 16 is connected to a cam 20 which co-operates with a roller 22. The nut 23 is loaded by a spring 25 to engage the cam and is connected to the valve sleeve 5 through a tongue and slot mechanism 24 whereby the nut can be rotated by rotation of the sleeve 5. In operation, the spool is rotated by a drive to a shaft 6 and the spool is moved axially through the threaded portion 18 and the cam 21, acting through the nut, to control the supply to the motor. Rotation of the motor acts through gearing (not shown) to rotate the sleeve 5 and nut 23 to cause movement of the spool in a direction opposite to the movement caused by rotation of the shaft 6. The arrangement provides a non-uniform rotation of the hydraulic ...

Valve

... 1,120,698. Valves. NEW YORK AIR BRAKE CO. 29 Nov., 1966 [23 Feb., 1966], No. 53395/66. Heading F2V. [Also in Division F1] A valve plunger 11 which selectively connects the working chambers of a double-acting motor 22 with a supply pump 57 and a reservoir 21 is movable from the " neutral " position shown, in which motor chambers 14, 18 are isolated, to " raise " and " lower " positions, and is provided with a load drop check valve 48 and a coaxial valve 49 which serves to control the bias on valve 48. The plunger is also provided with a check valve 35 and a by-pass valve 38 which, when opened, directs return fluid from the exhausting lower chamber of the motor directly back into the working upper chamber to increase the rate of flow of fluid in the event of the load moving the piston 22a faster than the pump 57 can make up. With the plunger in the " raise " position (Fig. 2, not shown) the pump supplies fluid to the lower end of the cylinder via chamber 15, radial passages 45, valve 48, ...

Improvements in Valves for Fluids

... 1,189,024. Valves. SPERRY RAND CORP. 21 June, 1967 [24 June, 1966], No. 28540/67. Heading F2V. Double start screw-threads are cut in the lands 68 of the spool 66 of a piston valve so that fluid continuously leaks past the lands, thereby maintaining them concentric with base 28 so that spool locking is avoided. This leakage fluid also provides pressure assistance to movement of the spool by solenoid 12.

FLUID CONTROL VALVES

... 1,203,196. Valves; clutch control. CLARK EQUIPMENT CO. 28 March, 1969 [19 April, 1968], No. 16393/69. Headings F2L and F2V. Sliding spool valve is arranged with lands 58, 60 on the spool to connect a pressure inlet 38 selectively with one or the other of two outlets 36, 40. In the position where the outlet 40 is so connected, excess pressure is relieved to a drain port 42 by a spring-biased sleeve 62 on the spool, which sleeve constitutes a third, relatively movable land on the spool. As shown, the valve controls a fluid pressure engaged clutch 12 connected to the outlet 36, and a spring-engaged fluid pressure released clutch 14 connected to the other outlet. The spool is biased to neutral by a centring spring 72 and operated by a handle 90. There is a pressure regulator 24 in the supply from a pump 22. The outlets are returned to drain through ports 34, 44.

Improvements in or relating to control regulators of hydraulic devices for maintaining vehicle frames at a constant level

... 854,716. Maintaining vehicle height constant. CITROEN S.A., A. Feb. 9, 1959 [April 10, 1958], No. 4401 /59. Classes 108(2) and 108(3). A regulator valve or switch for controlling the height of a road vehicle has dashpot means for damping movement from a neutral position, the damping being eliminated on the return movement to the neutral position. In Fig. 1 a resilient arm 12 connected to the vehicle axle (not shown) is connected to a cam 21 which operates one or other of valves 17, 18, controlling conduits 15, 16, leading to a source of compressed fluid and to exhaust respectively. A conduit 7 leads to the fluid suspension springs. A lever 22 rigid with the arm 12 engages a regulator member 43 the ends of which are in engagement with respective auxiliary members 41, 42, which are urged towards the regulating member by springs 46, 47 to a limit formed by shoulders 44, 45. The arrangement is such that the end faces of the regulator member are just in engagement with the corresponding faces ...

Improvements relating to door locking systems for motor vehicles

... 907,003. Latches. TRICO PRODUCTS CORPORATION. Sept. 19, 1958 [Sept. 23, 1957], No. 9849/62. Divided out of 907,002. Drawings to Specification. Class 44. The subject-matter of this Specification is substantially the same as that described in Specification 907,002, but the claims are concerned with a motor vehicle having a door lock controlled by a fluid-operated servomotor, and a valve comprising a valve element controlling a pressure or vacuum supply for operating the servomotor and connected to a diaphragm which partly defines a control chamber and which is urged by a spring in one direction, the control chamber being arranged to communicate with a source of pressure or vacuum which is generated by the engine of the vehicle while the engine is running and which moves the diaphragm against the action of the spring and thus moves the valve element so as to operate the servomotor and lock the door when the engine is started.

Hydraulic control system

... 1,070,000. Change speed control. EIMCO CORPORATION. Oct. 27, 1964 [Feb. 28, 1964], No. 43728/64. Headings F2D and F2V. In an hydraulic control for servomotors such as cylinders of forward and reverse establishing clutches for the tracks of an earth-moving tractor, line pressure is fed to a selected servomotor through a valve arrangement 70 comprising a spring-centred spool 112 and a spring- loaded modulating spool 72 to provide a more gradual and a smoother clutch cylinder filling. As shown, a pair of like Forward-Neutral- Reverse manual distributer valve spools are respectively arranged in series between two like spools 110, 112 of the valve arrangement 70 and the clutch cylinders. When, say, the spool of the manual distributer valve corresponding to the spool 112 is shifted, to say Forward, line pressure, at say 175 p.s.i., in a chamber 124 bleeds through an annular gap 117 to a chamber 120, which, together with a connected chamber 118, is connected to the distributer valve to provide ...

CONTROL VALVE FOR A CAM SHAFT VERSE PLATE

DRAIN EXHAUST FOR A FLUID RULE DEVICE

CONTROL VALVE

SEALS ARRANGEMENT

VALVE BUSHING FROM PLASTIC FOR A DYNAMIC MULTIPLE WAY VALVE.

DIAPHRAGM COMPOUND PUMP.

Valve arrangement, in particular with vehicle drives with an internal-combustion engine

GROUP OF SINGLE PILOTED VALVES WITH SIMPLE INSTALLATION AND SIMPLE MAINTENANCE

Directional control valve for fully hydraulic steering system

Hydraulic control apparatus

Hydraulic control apparatus

LOW EFFORT PLUNGER

ELECTROMAGNETIC HYDRAULIC VALVE, IN PARTICULAR PROPORTIONAL VALVE FOR CONTROLLING A DEVICE FOR ADJUSTING THE ROTATIONAL ANGLE OF A CAMSHAFT IN AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR THE PRODUCTION THEREOF

SELECTOR VALVE

Pressure balance valve

FLUID MOTOR CONTROL CIRCUIT WITH OVERSPEED LIMITING MEANS

DETENT MECHANISM AND TRANSMISSION SPEED RANGE SELECTOR VALVE

DETENT MECHANISM AND TRANSMISSION SPEED RANGE SELECTOR VALVE A transmission speed range selector valve pressure biased to the high speed range position and spring biased toward the low speed range position. A detent mechanism for retaining the valve in the low speed range arrests the movement of the valve when the pressure of the pressure biasing fluid decreases allowing the spring to move the valve toward the low speed range and thereby downshift the transmission when fluid is throttled to the speed range selector valve.

FLUID PUMP

MODULATING CONTROL VALVE FOR HYDRAULICALLY OPERATED WINCH

HYDRAULIC PRESSURE REDUCING CONTROL VALVE

AUXILIARY SPRING ASSISTED VALVE LINKAGE

ZERO-LEAKAGE SPOOL VALVE

COMBINATION PRESSURE CONTROL SELECTOR VALVE

CONTROL VALVE WITH METERING TYPE VALVE SPOOL

COMBINED STEERING CLUTCH AND BRAKE CONTROL FOR CRAWLER TRACTORS

LOW GAIN PRESSURE RELIEF VALVE FOR A FLUID PUMP

AA pressure relief valve (10) includes a casted, metal material housing (20) including a passage (16) therein along a longitudinal axis (X) and inlet and outlet ports (12, 13, 14) substantially perpendicular to the longitudinal axis, the outlet port having a wall (18) at an angle less than perpendicular to the longitudinal axis wherein and at a draft angle of the casting of the housing (20). The housing includes a counterbore (17) at the intersection of the wall of the passage and the wall of the outlet port (14) to provide a counterbore surface that is substantially perpendicular to the wall of the passage around the outer circumference of a valve body (30) in the passage. The top end (32) of the valve body (30) includes a reduced diameter portion (44) and a tapered portion (45) between the reduced diameter portion and the top of the valve body.

FORCE BALANCED HYDRAULIC SPOOL VALVE

Title FORCE BALANCED HYDRAULIC SPOOL VALVE of the Invention A hydraulic spool valve assembly includes a pair of lands spaced apart by a groove, one land comprising a piston face, an adjacent land comprising a hydraulic flow notch, wherein the piston face includes a pair of concentric radially concave concentric. The boundary between the two concave annuli defines a convex split point annulus. The notch is oriented so as to establish a hydraulic fluid flow adapted to impact the split point annulus so as to create inversely directed radial flows across the respective concave annuli. A reverse flow component is thereby established across the groove and back toward the notch to lessen the impact of the force of the hydraulic stream against the split point annulus.

Dispositif d'actionnement par fluide sous pression des porte-outils d'une bourreuse pour voies ferrées

Dispositif de commande de la vitesse de rotation d'un moteur hydraulique

Schieberkonstruktion

Schaltelement für Kältekompressoren

Vollhydraulische Vorrichtung an Maschine oder Apparat mit geradlinig hin- und hergehendem Teil, für weitgehend last- und geschwindigkeitsunabhängige Genauigkeitsumsteuerung der Bewegung des Teils zwischen zwei einstellbaren Umsteuerpunkten

Soupape à noyau coulissant

Steuerventil

Steuerschieber

Meccanismo tastatore per macchine utensili

Installation de transmission entre deux arbres rotatifs de machine

Hydraulische Steuereinrichtung mit mehreren Steuerschiebern

MULTI-WAY TRANSFER VALVE, IN PARTICULAR FOR GASEOUS ARGUMENTS.

CONTROL VALVE.

SERVO SLIDE VALVE.

VALVE CONTROL THE FLOW OF FLUID MEDIA.

Spool valve.

5/2-way valve IN SLIDEGATE VALVE DESIGN FOR the ARGUMENT SUPPLY of a SERVO ACTUATOR.

Sliding spool valve construction

The valve consists of a valve housing (2) with a bore (3) for a sliding spool (9) which is guided in a series of sealing rings (7) spaced along the bore. The sealing rings are retained in recesses (20) which are formed in one piece with the valve housing (2). The valve housing itself is split longitudinally into two halves (21,22) each containing half recesses into which the sealing rings fit. To assemble the valve housing the sealing rings are placed in the recesses of one half of the housing, and the second half is then secured by welding, adhesive or screws.

Single-acting reversing valve

Solenoid valve

In a solenoid valve, multiple flow-blocking portions are formed in a passage between a supply port (23) and an output port (24) and a passage between the output port (24) and a drain port (25). The flow-blocking portions, having an overlap length that corresponds to the movement amount of a spool (30), are formed by the outer peripheral faces of lands (32, 33) and the inner peripheral face of a spool case.

Hand control valve in hydraulic control system for automatic gearbox of vehicle

Slide valve

HYDRODYNAMIC TORQUE CONVERTER

L'invention concerne un convertisseur de couple hydrodynamique (1) comportant une roue (4) de pompe dans un carter (2, 3), une roue de turbine (5) et un distributeur (6) de turbine, ainsi qu'un accouplement de contournement (70) de convertisseur, incluant un piston mobile axialement, un amortisseur (40) d'oscillations de torsion, à parties d'entrée et de sortie rotatives l'une par rapport à l'autre en opposition à des accumulateurs de force. Sa roue de turbine (5) comporte un moyeu (13), logé en direction axiale sur un moyeu de sortie (15) du convertisseur de couple, axialement fixe par rapport à ce moyeu par l'effet d'un palier axial (20, 24, 23, 25), et logé par un palier radial (16, 17). Une liaison à jeu de rotation, par engrenage de butée (32, 34), est prévue entre ces deux moyeux, et une liaison fixe à rotation, par engrenage entraîneur (34, 4la), entre la partie d'entrée (41) de l'amortisseur et le moyeu de roue de turbine. Les engrenages entraîneur et de butée sont dans la même ...

CONTROL VALVE WITH METERING TYPE VALVE SPOOL

STEERING CLUTCH AND BRAKE CONTROL SYSTEM

HYDRAULIC VALVES

DIRECTION ASSISTEE FOR MOTOR VEHICLES

DEVICE OF HYDRAULIC CONTROL INTENDS IN PARTICULAR BE ORDER UNEBOITE SPEED

Regulator of order for hydraulic distributor of maintenance in height of the frame of a vehicle

MULTILANE VALVE COMPRISING SEVERAL POSITIONS OF CONNECTION

VALVE HOUSING FOR A FLUID FLOW CONTROL VALVE

HYDRAULIC VALVES

DISTRIBUTOR OF ADJUSTMENT PROVIDED With a HYDRAULIC MECHANISM Of STOP

HYDRAULIC DISTRIBUTOR.

FITTING OF SLIT Of THROTTLING FOR DRAWER OF CONTROL VALVE

HYDRAULIC FITTING OF DISTRIBUTOR IN THE FORM OF CARTRIDGE

L'invention concerne un ensemble de distributeur hydraulique et de corps destiné à recevoir au moins un distributeur hydraulique, le distributeur hydraulique comportant des orifices de distribution (15) et des moyens de distribution (16,17) pour mettre sélectivement en communication hydraulique les orifices de distribution (15). Le distributeur hydraulique (5) se présente sous la forme d'une cartouche oblongue, le corps comportant un logement (6) débouchant adapté à recevoir le distributeur hydraulique (5) de façon démontable de sorte que, lorsque le distributeur hydraulique est en place dans le logement, le distributeur et le logement définissent des chambres (35) hydrauliquement isolées dans lesquelles débouchent les orifices de distribution (15) du distributeur hydraulique.

PRESSURE CONTROL VALVE

DISPOSITIVO DE DIRECIONAMENTO HIDROSTATICO

Press lubrication system modification

A new and improved grease shunt valve and lubrication system for a printing press or the like is achieved by the adding of vent drains and/or seals to prevent the accumulation of a waxy-like residue from the grease that interfered with operation of a return spring for closing of the valve. An existing solenoid, operated, grease shunt valve may be retrofitted with an additional body portion having a grease drain vent therein and a seal that seals grease from flowing along a solenoid, actuating rod and into the solenoid core. Preferably, an end plug that seals one end of the return spring is drilled to provide the drain vent for grease flowing into the spring chamber. Vent holes may also be drilled into the solenoid housing to drain and vent grease flowing into the solenoid core.

Fluid distributor logic

A dual metering valve for a diesel engine pilot fuel injection system. The dual valve includes a pilot fuel metering valve, a main fuel metering valve, and a logic system. The pilot and main valves are of the spool type and each includes a solenoid for axially moving the spool from an unactuated position to an actuated position and a spring which returns the spool to an unactuated position when the solenoid is de-energized. The logic system controls the supply of unmetered fuel to a chamber in each spool and utilizes the position of the spools to provide the logic control. When the main spool is in its unactuated position it ports unmetered fuel to the pilot spool chamber; when the main spool is in its actuated position it blocks the supply of unmetered fuel to the pilot spool chamber. Pilot spool control is the reverse of the main spool control; i.e., when the pilot spool is in its unactuated position it blocks the supply of unmetered fuel to the chamber in the main spool; when the pilot ...

Twin power valve with integrated pressure balance

A twin power valve assembly ( 10 ) for a hydraulic braking system having a single body ( 16 ) with twin power valve arrangements, each having a spool ( 36, 36′ ) with a longitudinally extending passageway ( 36 D, 36 D′) for providing a modulation of the pressure applied to the brakes, and an integral balance piston ( 60, 60′ ) contained within the body ( 10 ) that equalizes the pressure applied to the left and right hand brakes when both brakes are applied.

Solenoid valve

Disclosed is a solenoid valve 10 having a valve sleeve 41 in which a spool 60 is arranged on the interior so as to move freely in axis direction, and a solenoid portion 20 which is mounted at one end along axial direction of the valve sleeve 41 and which gives a force to move the spool 60 in axial direction. A plurality of ports 51 to 54, which properly communicate with an internal flow passage 47 formed in the valve sleeve 41, is formed inside the valve sleeve 41. In at least an outlet port 51 of the plurality of ports, a relation of S 1≧ S 0 is fulfilled, where S 1 is an opening area of valve portion when the spool 60 moves in axial direction to maximally open the valve portion between the outlet port 51 and the internal flow passage 47, and S 0 is the total flow passage cross-sectional area.

Volume Booster With Seat Load Bias

A fluid flow control device includes a trim cartridge, a diaphragm assembly, and a control element. The trim cartridge defines a cartridge supply port and an upper planar surface. The cartridge supply port is disposed along a supply path of the volume booster and the upper planar surface is disposed along an exhaust of the volume booster. The diaphragm assembly defines an exhaust port on the exhaust path. The control element is movably disposed in the trim cartridge and includes a supply plug, an exhaust plug, and a stem. The supply plug engages the cartridge supply port and the exhaust plug engages the exhaust port. The exhaust plug further includes a lower planar surface that is coplanar with the upper planar surface of the trim cartridge.

Valve and dispenser using the valve

A valve for a pneumatic dispenser, the dispenser comprising a handle with an actuation arrangement for selectively applying pressure to a respective one of the front and rear chambers on either side of a piston coupled to a rod for applying a dispensing force, thereby controlling movement of the rod. The valve is provided with a body and first and second moveable members moveable relative to the body. The valve can be arranged as a space saving five port valve instead of two three port valves for use in the disclosed dispenser and can be arranged to provide a fail safe mechanism if both valve members are actuated concurrently. A dispenser comprising a stock portion and a cylinder secured to the stock portion is disclosed. Pressure is supplied to the rear chamber of the cylinder from the stock portion through its front chamber and the piston moveable inside the cylinder.

Liquid flow rate control valve

A liquid flow rate control valve is provided in which since a distributor ( 38 ) is rotated relative to a sleeve ( 37 ) by a first drive source ( 46 ) only through a predetermined angle, the total area of overlapping sections of a first opening ( 37 a ) of the sleeve ( 37 ) and the second opening ( 38 c ) of the distributor ( 38 ) changes, and a rotor ( 42 ) having a third opening ( 42 c 42 d ) is rotated by a second drive source ( 47 ), it is possible to carry out PWM control of the liquid input from an input port ( 61 e ) and output it from an output port ( 61 f ). In this process, one end in an axis (L) direction of the rotor ( 42 ) disposed on an inside in a radial direction is coaxially connected to the second drive source ( 47 ), and one end in the axis (L) direction of the distributor ( 38 ) disposed on an outside in a radial direction is connected to the first drive source ( 46 ) via a gear train ( 66, 73, 70 ), and therefore, it is possible to individually rotate the distributor ( 38 ) and the rotor ( 42 ) while achieving a compact size by arranging the first and second drive sources ( 46, 47 ) in a concentrated manner at one end in the axis (L) direction of a liquid flow rate control valve ( 23 ).

Flow control valve for construction machine

A flow control valve for a construction machine is provided, which can constantly control a flow rate of hydraulic fluid supplied to a hydraulic actuator through a flow control spool in a spool. The flow control valve for a construction machine, having a valve body in which a supply passage communicating with a pump passage and actuator ports connected to a hydraulic actuator are formed, and a spool installed in the valve body to be shifted, includes a flow control spool shifted in the spool to variably control a cross-sectional area of a passage connected to the one actuator port if a flow rate of the hydraulic fluid that flows through the supply passage is higher than a set flow rate, a first passage formed on the spool to communicate with the supply passage and a second passage formed on the spool to communication with the one actuator port and having a cross-sectional area that is varied depending on the shifting of the flow control spool.

Pressure control valve with pressure cycling control

A spool valve includes a housing having a spring-enclosing portion and a spool-enclosing portion aligned along a longitudinal axis. A spool is mounted for reciprocal axial movement in the housing and a piston is fixed to one end of the spool. The spool-enclosing portion supports a stationary bushing having a bore receiving an opposite control end of the spool, the bushing formed with a first plurality of radially-oriented passages opening into an annular groove formed in the bore, the groove having sloped side edges. The spool supports plural ring-seals arranged to engage the sloped side edges of the annular groove and thereby seal off the radially-oriented passages when the spool is in a neutral position. Movement of the spool is adjustably limited in one direction and dampened in both axial directions.

Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control

A valve ( 100 ) comprises a barrel ( 104 ) having a central bore ( 110 ), an inlet ( 112 ), and an outlet ( 114, 116 ), and a spool ( 120 ) disposed for motion within the central bore, including a ball tip ( 128 ), a metering edge ( 130 ), and a bore ( 132 ). The spool is moveable between a closed position, wherein the ball tip engages a seat ( 142 ) to prevent fluid flow through the inlet and the metering edge is disposed in a lower chamber ( 148 ) of the central bore to prevent the fluid flow through the outlet, and an opened position, wherein the tip is spaced apart from the seat to permit fluid flow through the inlet and the spool bore into an upper chamber ( 154 ) of the central bore to equalize pressure on the spool, and the metering edge is disposed in a flow path of the outlet to permit fluid flow through the outlet.

Spool valve

A spool for a spool valve having a longitudinal axis (L). The spool comprising: a plurality of lands each having a substantially radially extending metering edge and an axially extending circumferential surface; a plurality of grooves separating each of the plurality of the lands; and a guiding section located axially between at least one land and an adjacent groove. The guiding section comprising a plurality of circumferentially spaced guiding surfaces being substantially flush and contiguous with the circumferential surface of the land, wherein the guiding section allows fluid communication between the groove and the metering edge of the land.

Spool valve with special metering configuration for hydraulic valve main control speed

A spool component for use in a spool valve has a cylindrical body including a first diameter portion and a second diameter portion, the first diameter portion having a diameter that is larger than a diameter of the second diameter portion. A metering notch is cut into the first diameter portion and extends toward the second diameter portion. The metering notch includes a first angle cut and a second angle cut that are sloped at different depth angles toward the first diameter portion. A spool valve assembly includes a housing defining a bore, and the spool component, which is moveable within the bore along a stroke distance comprising a metering band for metering a flow of fluid across the spool component. The metering notch provides precise metering of the flow of fluid across the spool component based on the different depth angles of the cuts in the metering notch.

High pressure anti-cavitation cage

A control valve has a cage disposed within a valve body adjacent a valve seat and proximate a valve plug to provide guidance for the valve plug. The cage includes a solid, unitary circumferential wall with inlet passages adjacent one of an inner surface or an outer surface and outlet passages adjacent the other of the inner and outer surface. An annular cavity is spaced apart from the inner and outer surfaces and is connected to the inlet passages. Intermediate passages are connected to the annular cavity and recovery plenums interconnect the intermediate passages and the outlet passages. The recovery plenums have cross-sectional areas that are larger than a cross-sectional areas of the intermediate and outlet passages.

Control valve for a camshaft adjuster

A control valve ( 4 ) for controlling pressure medium flows of a camshaft adjuster, which control valve includes a substantially hollow cylindrical control sleeve ( 6 ), which is disposed inside a casing ( 8 ), and a control piston ( 12 ) which is guided axially displaceably inside the control sleeve ( 6 ) against the spring force of a spring element ( 14 ), the control sleeve ( 6 ) having at one axial end a base ( 22 ) which serves as an axial contact surface for the spring element ( 14 ).

Five-way oil control valve with integrated venting spool

A fluid flow control valve ( 10 ) having an elongated valve body ( 14 ) with a longitudinally extending aperture ( 14 a ) and a plurality of longitudinally spaced, radially extending ports ( 14 b ) formed therein. The valve body ( 14 ) includes an undercut portion ( 14 c ) located between two adjacent radially extending ports ( 14 b ). A valve spool ( 12 ) within the longitudinally extending aperture ( 14 a ) of the valve body ( 14 ) can be moved between first and second end limits of travel. The valve spool ( 12 ) has a plurality of lands ( 12 a ) and reduced diameter portions ( 12 b ) defining fluid passages ( 18 ) for fluid communication with selective radially extending ports ( 14 b ) of the valve body ( 14 ) depending on a longitudinal position of the valve spool ( 12 ) within the valve body ( 14 ). A longitudinally extending passage ( 12 c ) and a radially extending passage ( 12 d ) are formed in the valve spool ( 12 ). The radially extending passage ( 12 d ) terminates in one land ( 12 a ) of the valve spool ( 12 ) for fluid communication with the undercut portion ( 14 c ) of the valve body ( 14 ).

STEPPER MOTOR DRIVEN PROPORTIONAL ROTARY ACTUATOR

A stepper motor driven actuator system is provided. The system includes a stepper motor, a cam, and a gearbox system. The gearbox system operatively connects the stepper motor to the cam. The cam rotates in response to stepping of the stepper motor. The system also includes a valve having a control piston located therein. The control piston is configured to translate in response to rotation of the cam. The system further includes a rotary actuator. The rotary actuator is fluidly connected to the valve, and the rotary actuator is configured to rotate the cam in response to translation of the control piston. 1. A stepper motor driven actuator system comprising:a stepper motor;a cam;a gearbox system including a ring gear, the gearbox system operatively connecting the stepper motor to the cam such that the cam rotates in response to stepping of the stepper motor;a valve having a control piston located therein, the control piston configured to translate in response to rotation of the cam; anda rotary actuator, the rotary actuator fluidly connected to the valve;wherein translation of the control piston of the valve directly imparts rotary motion to the rotary actuator; andwherein the rotary actuator is configured to rotate the ring gear of the gearbox system to re-center the cam.2. The stepper motor driven actuator system of claim 1 , further comprisinga driveshaft of the stepper motor;a planet frame having an output shaft operatively connected to the cam; anda re-nulling gear configured to rotate in response to rotation of the rotary actuator;wherein the gearbox system includes a sun gear, a plurality of planetary gears, and the ring gear;wherein the re-nulling gear is in mesh relation to the ring gear;wherein the driveshaft of the stepper motor is integral with the sun gear; andwherein the planet frame causes rotation of the cam in response to stepping of the stepper motor and in response to rotation of the rotary actuator.3. The stepper motor driven actuator system of ...

High flow spool valve

The present disclosure provides a high flow coefficient spool valve ( 50 ) through one or more changes in the flow path from a conventional spool valve. The body ( 56 ) of the spool valve includes spherically contoured internal grooves ( 68 ). The spool ( 58 ), slidably engaged inside the body ( 56 ), includes concave surfaces between seals ( 62 ) that is complementary to the spherically shaped internal grooves ( 68 ) of the body. The spherical shape of the body internal grooves ( 68 ) and/or concave shape of the spool allow more volume and more laminar flow therebetween, resulting in an increased flow coefficient and flow capacity. The body also is formed with transverse port windows in the port that contour into a bore of the body adjacent the spool. A choke volume in the flow is strategically designed in a parallel flow location rather than a perpendicular flow location to promote laminar flow and lessen turbulence to also increase the flow coefficient.

Valve device

A valve device that changes the direction of flow of a hydraulic fluid supplied to and discharged from a cylinder mechanism to actuate the cylinder mechanism, the valve device including: a control valve including a main spool axially movable between different positions; a lock valve including a plunger and a pressure chamber; and a selector valve including a selector spool operable in conjunction with the main spool to axially move between different positions, the selector spool being located adjacent to the main spool and having an axis crossing an axis of the main spool.

Downhole Fluid Control System

A fluid flow control system serving as an inflow port from a fluid reservoir (R) to the interior of a production pipe (S) is in the form of a housing (b, c, d, e, f, g, h, i, j, k, l). The housing has a primary flow path () and a secondary flow path (). The secondary flow path is in fluid communication with a chamber (B) in which is arranged an actuator () for a valve device (), the valve device arranged to open and close the primary flow path. At least one flow restrictor () is arranged in the secondary flow path, the flow restrictor arranged to provide a pressure to chamber (B) sufficient to actuate the valve to an open position when the fluid flowing through the secondary flow path is oil, and a pressure sufficient to actuate the valve to a closed position when the fluid has a viscosity and/or density less than oil. 1. A downhole fluid flow system comprising:a fluid control module having an upstream side and a downstream side, the fluid control module including a main fluid pathway in parallel with a secondary fluid pathway each excluding between the upstream and downstream sides;a valve element disposed within the fluid control module, the valve element operable between an open position wherein fluid flow through the main fluid pathway is allowed and a closed position wherein fluid flow through the main fluid pathway is prevented;a viscosity discriminator disposed within the fluid control module the viscosity discriminator having a viscosity sensitive channel that forms at least a portion of the secondary fluid pathway anda differential pressure switch operable to shift the valve element between the open and closed positions, the differential pressure switch including a first pressure signal from the upstream side a second pressure signal from the downstream side and a third pressure signal from the secondary fluid pathway the first and second pressure signals biasing the valve element toward the open position the third pressure signal biasing the valve element ...

Pressure regulating valve and method of adjusting damping of the same

A pressure regulating valve includes a housing having a cavity therein with at least a first port, a second port and a third port in fluidic communication with the cavity, and a spool movable within the cavity. The spool separates the cavity into at least a first space and a second space, the first port and the second port are in alterable fluidic communication with the first space with movement of the spool altering a flow area connecting the first port with the second port. The third port connects to the second space through a variable flow area opening that is configured to alter a rate of movement of the spool.

Oil control valve

An oil control valve has a housing and a spool valve that is arranged in the housing and is movable in the axial direction. The movement range of the spool valve includes a first area and a second area. In the first area, a port that is connected to a lock mechanism opens to prevent the movement of a variable valve timing mechanism through drainage of oil from the lock mechanism. In the second area, oil is supplied and drained to and from the variable valve timing mechanism through a passage inside the spool valve. The first area exists at a position separated from the second area in the movement range.

Valve device

In a seat component received in a receiving region of a first body of a body, one surface of a contacting portion and one surface of an engaging portion are planar and are flush with each other, and the other surface of the contacting portion and the other surface of the engaging portion are planar and are flush with each other. The engaging portion engages two portions of the first body, which form one opening of the receiving region, in a state where a distal end of the seat component reaches another opening of the receiving region. Furthermore, in the state where the engaging portion engages the portions of the first body, a second body of the body covers the one opening and contacts the engaging portion. Thereby, the engaging portion engages the three portions of the body, so that movement of the seat component is effectively limited.

Line pressure valve to selectively control distribution of pressurized fluid

A line pressure valve includes a valve housing having a central cavity and a plurality of inlet and outlet ports, and a spool positioned within the central cavity and axially displaceable therein, the spool having a plurality of radial cutouts that fluidly connect respective inlet and outlet ports based on an axial position of the spool with respect to the valve housing. First and second pumps are fluidly connectable and disconnectable respectively to and from the fluid circuit based on the axial position of the spool via the inlet and outlet ports.

VALVE SIGNATURE DIAGNOSIS AND LEAK TEST DEVICE

A valve signature diagnosis and leak testing device includes a spool valve operatively connected to a pilot valve, the pilot valve being configured to position the spool valve to one of an open position and a closed position. A blocker valve is fluidly connected to a control fluid outlet of the spool valve. An electrical module is operatively connected to the pilot valve, a supply of control fluid, and the blocker valve, the electrical module being capable of sending pulsed electrical signals to the pilot valve and the blocker valve to selectively position the spool valve and the blocker valve to an open or closed position.

Solenoid Device With Sensor

A solenoid device including pressure altering means for altering an output pressure of the solenoid device; and an actuator for providing an actuating signal to said pressure altering means; wherein the solenoid device further includes a sensor arranged to sense a control value of the solenoid device, and a controller which receives a request and is arranged to control delivery of power to the actuator with feedback from the sensor until the control value meets the request.

Hydraulic control valve with pressure sensing device

Control valve for operating hydraulic coupling has sliding valve element in slide valve bore and pressure transition region formed by reduced diameter section on surface of sliding element

The control valve has an electromagnet (12), a slide valve (14) with a valve housing (46) functionally connected to the electromagnet and with a bore (48) with one end next to the electromagnet and the other at the far end of the valve housing, a sliding valve element (50) in the bore and a pressure transition region (55) formed by a reduced diameter section (54) on a surface of the sliding element.

Hydraulic valve for a Schwenkmotorversteller

Die Erfindung betrifft ein Hydraulikventil (12) für einen Schwenkmotorversteller welches mittels Rückschlagventilen (35,36) Nockenwellenwechselmomenten zur schnelleren Verstellung nutzt. Dabei wird das für die jeweilige Drehung ungenutzte Rückschlagventil (35bzw.36) zusätzlich mittels des Kolbens (19) des Hydraulikventils (12) verschlossen. The invention relates to a hydraulic valve (12) for a swivel motor adjuster which uses camshaft alternating torques for quick adjustment by means of check valves (35, 36). The check valve (35 or 36) which is not used for the respective rotation is additionally closed by means of the piston (19) of the hydraulic valve (12).

Hydraulic reversing system for a reciprocating working member

A HYDRAULIC REVERSING SYSTEM FOR A RECIPROCATING WORKING MEMBER WHICH IS CONNECTED WITH A POWER CYLINDER RECEIVING A MAIN PISTON WHICH SUBDIVIDES THE CYLINDER INTO DISPACEMENT CHAMBERS. THE MAIN CONTROL VALVE COMPRISES A PISTON WITH A CENTRAL SPOOL SEPARATING TWO WORKING CHAMBERS FROM ONE ANOTHER THE WORKING CHAMBERS BEING CONNECTED TO THE DISPLACEMENT CHAMBERS OF THE MAIN CYLINDER. IN ADDITION, A PAIR OF CONTROL SPOOLS SEPARATE THE MAIN CHAMBERS OF THE VALVE FROM CONTROL CHAMBERS WHICH ARE RESPECTIVELY CONNECTED BY HYDRAULIC IMPULSE TRANSMITTERS COOPERATING WITH THE MOVABLE MEMBER FOR ALTERNATE OPERATION ON RECIPROCATION THEREOF. IMMEDIATELY UPON TRIPPING OF ONE OF THE IMPULSE GENERATORS, AND OIL FLOW FROM THE MAIN VALVE INLET TO THE CORRESPONDING CONTROL COMPARTMENT IS TERMINATED AND THE SPOON VALVE SHIFTED IN THE OPPOSITE DIRECTION TO REVERSE THE FLOW OF FLUID TO THE DISPLACEMENT COMPARTMENTS OF THE MAIN CYLINDER. AFTER AN INITIAL CLEARANCE IS FORMED IN COMMINICATION WITH THE CONTROL CHAMBER, THE MAIN HYDRAULIC PRESSURE SERVES TO BIAS THE CONTROL VALVE.

Control valve for a camshaft adjuster

Die Erfindung betrifft ein Steuerventil (14) für eine Vorrichtung (1) zur Veränderung der Steuerzeiten von Gaswechselventilen (110, 111) einer Brennkraftmaschine (100). Dabei ist vorgesehen, innerhalb einer druckmitteldurchströmten Ringnut (44), welche an einer der Komponenten des Steuerventils (14) ausgebildet ist, ein Rückschlagventil (54) anzuordnen. Dabei soll vor allem der Montageaufwand reduziert werden. The invention relates to a control valve (14) for a device (1) for changing the control times of gas exchange valves (110, 111) of an internal combustion engine (100). It is provided to arrange a check valve (54) within a pressure-medium-flowed annular groove (44), which is formed on one of the components of the control valve (14). In particular, the assembly effort is to be reduced.

control valve

Die Erfindung betrifft ein Steuerventil (12) mit einem im Wesentlichen zylindrisch ausgebildeten Ventilgehäuse (34) und einem im Wesentlichen zylindrisch ausgebildeten Steuerkolben (36), wobei das Steuerventil (12) innerhalb einer zylindrischen Aufnahme (31) angeordnet werden kann und wobei der Steuerkolben (36) innerhalb des Ventilgehäuses (34) axial verschiebbar angeordnet ist. The invention relates to a control valve (12) with a substantially cylindrical valve housing (34) and a substantially cylindrical control piston (36), the control valve (12) can be arranged within a cylindrical receptacle (31) and the control piston ( 36) is arranged axially displaceably within the valve housing (34).

Electromagnetic proportional valve with bypass for a cam shaft adjuster for an internal combustion engine

Central valve for a Schwenkmotorversteller

Die Erfindung betrifft ein Zentralventil für einen Schwenkmotorversteller mit einem Gehäuserohr (101), das einen ersten Arbeitsanschluss (A), einen Versorgungsanschluss (P), einen zweiten Arbeitsanschluss (B) und einen Tankabflussanschluss (T) aufweist, einem von dem Gehäuserohr (101) umgebenen Kolben (102), der relativ zu dem Gehäuserohr (101) beweglich ist und radiale Öffnungen aufweist, wobei in einer ersten Stellung des Kolbens (102) der erste Arbeitsanschluss (A) mit dem Versorgungsanschluss (P) und der zweite Arbeitsanschluss (B) mit dem Tankabflussanschluss (T) verbunden ist, in einer zweiten Stellung des Kolbens (102) der erste Arbeitsanschluss (A) und der zweite Arbeitsanschluss (B) abgesperrt sind, und in einer dritten Stellung des Kolbens (102) der zweite Arbeitsanschluss (B) mit dem Versorgungsanschluss (P) und der erste Arbeitsanschluss (A) mit dem Tankabflussanschluss (T) verbunden ist. Erfindungsgemäß ist vorgesehen, dass der Kolben (102) auf seiner Außenseite ein oder mehrere erste Rückschlagventile (104) trägt, die einen Strömungsweg von dem ersten Arbeitsanschluss (A) zu dem zweiten Arbeitsanschluss (B) öffnen, wenn der Kolben (102) in seiner dritten Stellung ist und an dem ersten Arbeitsanschluss (A) ein Druck anliegt, der einen Schwellenwert übersteigt, und der Kolben (102) auf seiner Außenseite ein oder mehrere zweite Rückschlagventile (105) trägt, die einen Strömungsweg von dem zweiten Arbeitsanschluss (B) zu dem ersten Arbeitsanschluss (A) öffnen, wenn der Kolben (102) in seiner ersten Stellung ist und an dem zweiten Arbeitsanschluss (B) ein Druck anliegt, der einen Schwellenwert übersteigt. The invention relates to a central valve for a swivel motor adjuster with a housing tube (101) which has a first working connection (A), a supply connection (P), a second working connection (B) and a tank drain connection (T), one of the housing tube (101) surrounded piston (102), which is movable relative to the housing tube (101) and has radial openings, ...

Control valve for a camshaft adjuster

The invention concerns a control valve (4) for controlling pressure medium flows of a camshaft adjuster, which control valve comprises a substantially hollow cylindrical control sleeve (6), which is disposed inside a jacket (8), and a control piston (12) which is guided axially displaceably inside the control sleeve (6) against the spring force of a spring element (14) , the control sleeve (6) comprising at one axial end a base (22) which serves as an axial abutment surface for the spring element (14).

Proportional Solenoid Valve for a Camshaft Adjusting Device of Motor Vehicles

A proportional solenoid valve or a camshaft adjusting device of motor vehicles has a valve housing and a piston movably arranged in the valve housing and provided with at least one pressure medium passage. A solenoid part is connected to the valve housing and acts on the piston. The valve housing has at least one working connector, a tank connector, and a pressure connector configured to supply a pressure medium into the piston. A leakage passage is provided that connects the pressure connector at all times to the at least one working connector.

Power steering

Hydraulic valve for a Schwenkmotorversteller

Hydraulikventil (12 bzw. 44 bzw. 54) für einen Schwenkmotorversteller (14) einer Nockenwelle (18), das einen längsverschiebbar in einer Bohrung (85 bzw. 185 bzw. 285) eingesetzten Kolben (19 bzw. 119 bzw. 219) zur Verteilung von Hydraulikfluid auf zwei Arbeitsanschlüsse (A, B) aufweist, wobei von dieser Bohrung (85 bzw. 185 bzw. 285) axial beabstandet zueinander – ein erster Anschlussteil (A1) des ersten Arbeitsanschlusses (A) zur Führung von Hydraulikfluid in eine erste Druckkammer (9) des Schwenkmotorverstellers (14), – ein zweiter Anschlussteil (A*) zur Ausleitung von Hydraulikfluid aus dieser ersten Druckkammer (9) zu einem innerhalb des Kolbens (19 bzw. 119 bzw. 219) angeordneten Versorgungskanal (32 bzw. 132 bzw. 232), – ein erster Anschlussteil (B1) des zweiten Arbeitsanschlusses (B) zur Führung von Hydraulikfluid in eine der ersten Druckkammer (9) entgegen gerichteten zweiten Druckkammer (10) des Schwenkmotorverstellers (14) und – ein zweiter Anschlussteil (B*) zur Ausleitung von Hydraulikfluid aus der zweiten Druckkammer (10) zum Versorgungskanal (32 bzw. 132 bzw. 232) abgehen, wobei im Fluss von den Druckkammern (9, 10) zu den beiden zweiten Anschlussteilen (A*, B*) jeweils ein Rückschlagventil (35, 36 bzw. 135, 136 bzw. 67, 68) angeordnet ist, das den Druck in der vom Versorgungskanal (32 bzw. 132 bzw. 232) zu den Druckkammern (9, 10) weisenden Richtung sperrt, dadurch gekennzeichnet, dass der Kolben (19 bzw. 119 bzw. 219) – in der einen Stellung der Zuleitung von Hydraulikfluid vom Versorgungskanal (32 bzw. 132 bzw. 232) zu der einen Druckkammer (9 bzw. 10) den der einen Druckkammer (9 bzw. 10) zugeordneten zweiten Anschlussteil (A* bzw. B*) sperrt und – in der anderen Stellung der Zuleitung von Hydraulikfluid vom Versorgungskanal (32 bzw. 132 bzw. 232) zu der anderen Druckkammer (10 bzw. 9) den der anderen Druckkammer (10 bzw. 9) zugeordneten zweiten Anschlussteil (B* bzw. A*) sperrt. Hydraulic valve (12 or 44 or 54) for a Schwenkmotorversteller (14) of ...

Proportional solenoid valve of a camshaft adjustment device for motor vehicles

Nockenwellenverstelleinrichtungen dienen dazu, den Kraftstoffbedarf eines Verbrennungsmotors an seine jeweils abzugebende Leistung anzupassen. Die Einrichtung hat einen Versteller mit einem Verstellelement, das durch ein Druckmedium verstellt wird. Die Betätigung des Verstellers erfolgt über das Proportionalmagnetventil. DOLLAR A Der Druckanschluß des Proportionalmagnetventils ist über den Leckagedurchtritt ständig mit dem Arbeitsanschluß verbunden. Dadurch wird im System auftretende Leckage zuverlässig kompensiert. Über den Leckagedurchtritt wird der Arbeitsanschluß auch dann mit Druckmedium versorgt, wenn er geschlossen ist. DOLLAR A Das Proportionalmagnetventil ist für Nockenwellenverstelleinrichtungen von Kraftfahrzeugen vorgesehen. Camshaft adjustment devices serve to adapt the fuel requirement of an internal combustion engine to its output to be output. The device has an adjuster with an adjusting element which is adjusted by a pressure medium. The adjuster is operated via the proportional solenoid valve. DOLLAR A The pressure connection of the proportional solenoid valve is permanently connected to the working connection via the leakage passage. This reliably compensates for any leakage occurring in the system. The working connection is also supplied with pressure medium via the leakage passage when it is closed. DOLLAR A The proportional solenoid valve is intended for camshaft adjustment devices in motor vehicles.

Control valve

The invention relates to a control valve (12) comprising a substantially cylindrical valve box (34) and a substantially cylindrical control piston (36). The control valve (12) can be arranged in a cylindrical receptacle (31) and the control piston (36) is arranged so as to be axially displaceable inside the valve box (34).

Valve part for a hydraulic control valve

The invention relates to a valve part for a hydraulic control valve for controlling pressure medium flows, comprising: a cylindrical valve housing with a valve housing chamber axially open to one side, wherein the valve housing is provided with a first radial working connection (A), a second radial working connection (B) and a radial pressure connection (P) each opening out in the valve housing chamber and a cylindrical control piston housed in the valve housing chamber such as to move axially with a control piston chamber which is open to one side at an axial control piston chamber opening, where the control piston is provided with a radial bleed connection (T) opening into the control piston chamber and the control piston is designed such that the working connections (A, B) may be selectively fluidly connected to the pressure connection (P) and the bleed connection (T) by axial movement of the control piston. The valve part is characterised in that at the axial control piston chamber opening, a cover is proved with at least one cover opening.

Nockenwellenstellvorrichtung und Steuerventil mit Leckageausgleich

Die Erfindung betrifft eine Stellvorrichtung zur relativen Winkelverstellung einer angetriebenen Welle, insbesondere einer Nockenwelle einer Brennkraftmaschine, mit einem Antriebsrad, das drehwinkelbeweglich mit der Welle verbunden ist, mit einem Verstellelement (1) zur Drehwinkelverstellung des Antriebsrades gegenüber der Welle, mit Kammern (2, 3) zur wechselseitigen Zuführung von Hydraulikflüssigkeit und mit einem über Druckmittelkanäle (4, 5) mit den Kammern (2, 3) des Verstellelementes (1) verbundenen Steuerventil (6) zur Betätigung des Verstellelementes (1). Das Steuerventil (6) besteht dabei aus einem Ventilkörper (7), der zwei Arbeitsanschlüsse A und B für die Druckmittelkanäle (4, 5), einen Druckanschluß P für die Zuführung von Hydraulikflüssigkeit und einen Ablaufanschluß T für die Abführung von Hydraulikflüssigkeit aufweist, und aus einen verschiebbaren Ventilsteuerkolben (8) zur Einstellung unterschiedlicher hydraulischer Widerstände W zwischen den einzelnen Anschlüssen.In einer mittleren Schlatposition des Ventilsteuerkolbens (8) zur Einstellung eines mittleren Phasenwinkels besteht ein geringerer hydraulischer Widerstand W zwischen dem Druckanschluß P und demjenigen Arbeitsanschluß A oder B, an dem konstruktionsbedingt ein erhöhter Verluststrom V auftritt.

Electromagnetic hydraulic valve, for controlling camshaft setting device, has control piston moved by magnetic armature for controlling radial openings in axial bore of valve housing

Valve (1) has hollow cylindrical electromagnet (2), axially displaced magnetic armature (3), cylindrical valve housing (4) with axial bore (5) and hollow control piston (6) displaced by armature against force of a coil spring (7). Axial bore has radial openings (11,12,13) of rectangular cross-section controlled by control sections (14,15) of control piston, with the flow through radial openings being linear in all positions of control piston. An Independent claim for a manufacturing method for an electromagnetic hydraulic valve is also included.

Control valve for a device for variably adjusting the valve timing for gas exchange valves in an internal combustion engine

The invention relates to a control valve (14) for a device (1) for altering the valve timing for gas exchange valves (110, 111) in an internal combustion engine (100). A non-return valve (54) is located within an annular groove (44) formed on one of the components of the control valve (14) and pressure medium flows through said annular groove. The aim is, in particular, to facilitate assembly.

Control valve

The invention relates to a control valve (12) comprising a substantially cylindrical valve box (34) and a substantially cylindrical control piston (36). The control valve (12) can be arranged in a cylindrical receptacle (31) and the control piston (36) is arranged so as to be axially displaceable inside the valve box (34).

Valve, preferably proportional solenoid valve

Das Ventil wird als Cartridgeventil eingesetzt, das mit seinem Ventilteil in einen Aufnahmeblock, beispielsweise einen Motorblock einer Brennkraftmaschine, eingesetzt wird. Im Motorblock befinden sich Ölkanäle, über die Öl zu Anschlußbohrungen im Ventilteil zugeführt wird. DOLLAR A Um in konstruktiv einfacher Weise eine einwandfreie Zuführung bzw. Abführung des Druckmediums vom Ventilteil zu den Ölkanälen des Aufnahmeblockes zu gewährleisten, liegt zumindest eine der Anschlußbohrungen in einer Nut, die sich längs des Ventilteiles erstreckt. Dadurch müssen die Ölkanäle im Aufnahmeblock nur so vorgesehen werden, daß sie in die Nut münden. Dadurch können bei der Lagegenauigkeit der Ölkanäle größere Toleranzen zugelassen werden. Auch die Montage des Ventils am Aufnahmeblock wird erleichtert. DOLLAR A Das Ventil eignet sich als Cartridgeventil, das in einen Motorblock einer Brennkraftmaschine eingesetzt wird. The valve is used as a cartridge valve, which is used with its valve part in a receiving block, for example an engine block of an internal combustion engine. There are oil channels in the engine block, through which oil is fed to connection bores in the valve part. DOLLAR A In order to ensure that the pressure medium is fed or removed from the valve part to the oil passages of the receiving block in a structurally simple manner, at least one of the connection bores lies in a groove which extends along the valve part. As a result, the oil channels in the receiving block only have to be provided in such a way that they open into the groove. As a result, larger tolerances can be allowed for the positional accuracy of the oil channels. Mounting the valve on the mounting block is also made easier. DOLLAR A The valve is suitable as a cartridge valve which is inserted into an engine block of an internal combustion engine.

Control valve

Control valve for a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine

Die Erfindung betrifft ein Steuerventil (14) für eine Vorrichtung (1) zur Veränderung der Steuerzeiten von Gaswechselventilen (110, 111) einer Brennkraftmaschine (100). Dabei ist vorgesehen, innerhalb einer druckmitteldurchströmten Ringnut (44), welche an einer der Komponenten des Steuerventils (14) ausgebildet ist, ein Rückschlagventil (54) anzuordnen. Dabei soll vor allem der Montageaufwand reduziert werden. The invention relates to a control valve (14) for a device (1) for changing the control times of gas exchange valves (110, 111) of an internal combustion engine (100). It is provided that a check valve (54) is arranged within an annular groove (44) through which pressure medium flows and which is formed on one of the components of the control valve (14). Above all, the assembly effort should be reduced.

Control valve of a camshaft adjuster

Es wird ein Steuerventil (4) zur Steuerung von Druckmittelströmen eines Nockenwellenverstellers angegeben, welches eine im Wesentlichen hohlzylindrisch ausgeführte Steuerhülse (6), die innerhalb einer Ummantelung (8) angeordnet ist, und einen innerhalb der Steuerhülse (6) entgegen einer Federkraft eines Federelements (14) axial verschiebbar geführten Steuerkolben (12) umfasst, wobei die Steuerhülse (6) an einem axialen Ende einen Boden (22) aufweist, der als axiale Anlagefläche für das Federelement (14) dient. A control valve (4) for controlling pressure medium flows of a camshaft adjuster is provided, which has a substantially hollow cylindrical control sleeve (6) which is arranged inside a casing (8) and one inside the control sleeve (6) against a spring force of a spring element (FIG. 14) axially displaceably guided control piston (12), wherein the control sleeve (6) at one axial end a bottom (22) which serves as an axial abutment surface for the spring element (14).

Control valve for a camshaft adjuster

A control valve ( 4 ) for controlling pressure medium flows of a camshaft adjuster, which control valve includes a substantially hollow cylindrical control sleeve ( 6 ), which is disposed inside a casing ( 8 ), and a control piston ( 12 ) which is guided axially displaceably inside the control sleeve ( 6 ) against the spring force of a spring element ( 14 ), the control sleeve ( 6 ) having at one axial end a base ( 22 ) which serves as an axial contact surface for the spring element ( 14 ).

凸轮轴调节器的控制阀

本发明说明了一种用于控制凸轮轴调节器的压力介质流动的控制阀(4)，其包括布置在外壳(8)之内的、大致空心圆柱形地实施的控制套筒(6)和在控制套筒(6)之内以能抵抗弹簧元件(14)的弹簧力地轴向移动的方式受引导的控制活塞(12)，其中，控制套筒(6)在轴向端部具有底部(22)，该底部充当弹簧元件(14)的轴向贴靠面。

Control valve of a camshaft adjuster

Steuerventil (4) zur Steuerung von Druckmittelströmen eines Nockenwellenverstellers, welches eine im Wesentlichen hohlzylindrisch ausgeführte, aus einem Metall gefertigte Steuerhülse (6), die innerhalb einer Ummantelung (8) angeordnet ist, und einen innerhalb der Steuerhülse (6) entgegen einer Federkraft eines Federelements (14) axial verschiebbar geführten Steuerkolben (12) umfasst, wobei die Steuerhülse (6) an einem axialen Ende einen Boden (22) aufweist, der eine Ausnehmung (24) umfasst, die axial von einem Fortsatz (25) der Ummantelung (8) formschlüssig durchgriffen wird, und wobei ein Herausgleiten des Steuerkolbens (12) aus der Ummantelung (8) durch einen Sicherungsring verhindert wird, dadurch gekennzeichnet, dass der Boden (22) als axiale Anlagefläche für das Federelement (14) dient. Control valve (4) for controlling pressure medium flows of a camshaft adjuster, which has an essentially hollow-cylindrical control sleeve (6) made of metal and arranged inside a casing (8), and one inside the control sleeve (6) against a spring force of a spring element (14) comprises axially displaceable control piston (12), the control sleeve (6) having at one axial end a base (22) which comprises a recess (24) which is axially defined by an extension (25) of the casing (8) is positively penetrated, and a sliding out of the control piston (12) from the casing (8) is prevented by a locking ring, characterized in that the base (22) serves as an axial contact surface for the spring element (14).

Central valve for a Schwenkmotorversteller

Zentralventil für einen Schwenkmotorversteller mit einem Gehäuserohr (101), das einen ersten Arbeitsanschluss (A), einen Versorgungsanschluss (P), einen zweiten Arbeitsanschluss (B) und einen Tankabflussanschluss (T) aufweist, einem von dem Gehäuserohr (101) umgebenen Kolben (102), der relativ zu dem Gehäuserohr (101) beweglich ist, wobei in einer ersten Stellung des Kolbens (102) der erste Arbeitsanschluss (A) mit dem Versorgungsanschluss (P) und der zweite Arbeitsanschluss (B) mit dem Tankabflussanschluss (T) verbunden ist, in einer zweiten Stellung des Kolbens (102) dieser in einer Mittenstellung positioniert ist, und in einer dritten Stellung des Kolbens (102) der zweite Arbeitsanschluss (B) mit dem Versorgungsanschluss (P) und der erste Arbeitsanschluss (A) mit dem Tankabflussanschluss (T) verbunden ist, wobei der Kolben (102) auf seiner Außenseite ein oder mehrere erste Rückschlagventile (104) trägt, die einen Strömungsweg von dem ersten Arbeitsanschluss (A) zu dem zweiten Arbeitsanschluss (B) öffnen, wenn der Kolben (102) in seiner dritten Stellung ist und an dem ersten Arbeitsanschluss (A) ein Druck anliegt, der einen Schwellenwert übersteigt, wobei das erste bzw. die ersten Rückschlagventile (104) an einer Hülse (94) angeordnet sind, die den Kolben (102) umgibt und starr mit dem Kolben (102) verbunden ist. Central valve for a Schwenkmotorversteller with a housing tube (101) having a first working port (A), a supply port (P), a second working port (B) and a Tankabflussanschluss (T), one of the housing tube (101) surrounded piston (102 ) movable relative to the housing tube (101), wherein in a first position of the piston (102) the first working port (A) is connected to the supply port (P) and the second working port (B) is connected to the tank discharge port (T) in a second position of the piston (102) is positioned in a central position, and in a third position of the piston (102) the second working port (B) with the supply port (P) and the first working ...

Schwenkmotorversteller with a central valve

Schwenkmotorversteller (14) einer Nockenwelle (18) mit einem Zentralventil (12), das einen längsverschiebbar in einer Längsbohrung (55) eingesetzten Hohlkolben (19) zur Verteilung eines aus einer Versorgungsausnehmung (41) in einer Innenwand (57) der Längsbohrung (55) kommenden Versorgungsdrucks auf zwei Arbeitsanschlüsse (A, B) aufweist, wobei der Hohlkolben (19) dazu einen Hohlraum (44) aufweist, der hydraulisch über eine Eintrittsöffnung (50) zum Versorgungsanschluss (P) führbar ist und der hydraulisch über eine axial zu dieser Eintrittsöffnung (50) beabstandeten Austrittsöffnung (51) je nach Hohlkolbenstellung auf den ersten Arbeitsanschluss (A) oder den zweiten Arbeitsanschluss (B) führbar ist, wobei eine Hülse (46) eine von dem Versorgungsdruck beaufschlagbare Stirnfläche (58) aufweist, so dass die Hülse (46) koaxial auf dem Hohlkolben (19) in eine erste Richtung verschiebbar ist und dabei die Eintrittsöffnung (50) freigeben kann, wobei eine Rückflussöffnung (43) im Hohlkolben (19) vorgesehen ist, die eine von der ersten Stirnfläche (58) abgewandte zweite Stirnfläche (60) der Hülse (46) aufweist, welche einen Druckraum (25) begrenzt, der durch die Rückflussöffnung (43) in den Hohlraum (44) des Hohlkolbens (19) führt. Schwenkmotorversteller (14) a camshaft (18) having a central valve (12) having a longitudinally displaceable in a longitudinal bore (55) used hollow piston (19) for distribution of a supply recess (41) in an inner wall (57) of the longitudinal bore (55) Coming supply pressure to two working ports (A, B), wherein the hollow piston (19) to a cavity (44), which is hydraulically via an inlet opening (50) to the supply port (P) feasible and the hydraulically via an axial to this inlet opening (50) spaced outlet opening (51) depending on the hollow piston position on the first working port (A) or the second working port (B) can be guided, wherein a sleeve (46) has an acted upon by the supply pressure end face (58), so that the sleeve ( 46) is ...

Pressure control valve in slide construction with improved damping behavior

Es wird ein Druckregelventil (18) in Schieberbauweise mit einem verbesserten Dämpfungsverhalten vorgeschlagen. A pressure control valve (18) in slide design with improved damping behavior is proposed.

Electromagnetic proportional valve with bypass for a cam shaft adjuster for an internal combustion engine

The magnet valve includes a valve housing (1), in which a piston can be shifted and has at least a working connection, a refueling adaptor and a pressure connection. Pressure medium, preferably hydraulic oil, is fed to the piston, which includes a least a passage for the pressure medium.

Hydraulic valve for an oscillating motor adjuster

The invention relates to a hydraulic valve for an oscillating motor adjuster that utilizes camshaft alternating torques by means of non-return valves for more rapid adjustment. The non-return valve that is not used for the respective rotation is additionally closed by means of the piston of the hydraulic valve.

Control valve for a camshaft adjuster

The invention relates to the control valve of a hydraulic adjuster for the camshaft of an internal combustion engine, wherein an actuator acts on a pressure part (12) embedded into a control piston (5). In order to prevent the piston (5) from being blocked in the valve hausing by the expansion thereof caused by the pressure part embedment, said pressure part (12) and/or control piston (5) is (are) provided with radial recesses (34) in the embedment area (13) which make it possible to limit jointing forces and the resulting radial piston (5) expansion. Alternatively or additionally, the external surface of the control valve (5) has a reduced cross-sections in the embedment area (13).

Hydraulic valve socket

Beispielsweise für Cartridgeventile bei Nockenwellenverstelleinrichtungen in Kraftfahrzeugen werden Buchsen eingesetzt, über deren Öffnungen Hydraulikmedium Zuleitungen im Motorblock oder im Ventilaufnahmeblock zugeführt wird. Die Öffnungen werden mechanisch nachbearbeitet. Dadurch sind die Buchsen teuer in der Herstellung. DOLLAR A Damit die Buchsen kostengünstig hergestellt werden können, ist die Wandung der Öffnungen wenigstens über einen Teil ihres Umfanges als Formschräge ausgebildet. Dadurch können die Öffnungen im Rohteil vorgesehen werden, ohne daß mechanische Arbeitsgänge nachträglich erforderlich sind. DOLLAR A Die Buchsen werden für Cartridgeventile bei Nockenwellenverstellern für Kraftfahrzeuge eingesetzt. For example, for cartridge valves in camshaft adjusting devices in motor vehicles, bushings are used, through the openings of which hydraulic medium supply lines in the engine block or in the valve receiving block are supplied. The openings are reworked mechanically. This makes the bushings expensive to manufacture. DOLLAR A So that the bushings can be manufactured inexpensively, the wall of the openings is designed at least over part of its circumference as a bevel. As a result, the openings can be provided in the unfinished part without mechanical operations subsequently being required. DOLLAR A The bushings are used for cartridge valves in camshaft adjusters for motor vehicles.

Method and apparatus for operating an oil flow control valve

Valve part of a hydraulic control valve

Central valve for pivot motor actuator

A central valve for a pivot motor actuator, the central valve including a housing tube including a first operating connection, a supply connection, a second operating connection and a tank drain connection; a piston enveloped by the housing tube and moveable relative to the housing tube, wherein the first operating connection is connected with the supply connection and the second operating connection is connected with the tank drain connection in a first position of the piston, wherein the piston is positioned in a center position in a second position, and wherein the second operating connection is connected with the supply connection and the first operating connection is connected with the tank drain connection in a third position of the piston, wherein the piston includes at least one first check valve on its outside.

Control valve for a camshaft adjuster

A control valve ( 14 ) for a device ( 1 ) for modifying the control times of gas exchange valves ( 110, 111 ) of an internal combustion engine ( 100 ) is provided. A check valve is arranged inside an annular groove ( 44 ) which is formed on one of the components of the control valve ( 14 ) and through which a pressurized medium flows. This reduces the assembly costs.

Elektromagnetisches Hydraulikventil

Die Erfindung betrifft ein elektromagnetisches Hydraulikventil (1) insbesondere Proportionalventil zur Steuerung einer Vorrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine, bestehend zum einen aus einem Elektromagnet (2) mit einem hohlzylindrischen Magnetgehäuse (4), zumindest einer Spulenwicklung (5) und einem axial beweglichen Magnetanker (6) sowie einem ersten und einem zweiten Polschuh (7, 8) und zum anderen aus einem Ventilteil (3) mit einem hohlzylindrischen Ventilgehäuse (9), in dem ein vom Magnetanker (6) des Elektromagneten (2) über eine Stößelstange (11) axial verschiebbarer Steuerkolben (12) aufgenommen ist. DOLLAR A Die Erfindung besteht darin, dass auf dem in Richtung der Stößelstange (11) liegenden Ende des Steuerkolbens (12) eine aus einem Boden (18) und einer hohlzylindrischen Seitenwand (19) bestehende Buchse (17) angeordnet ist, die eine größere Härte als der Steuerkolben (12) aufweist. DOLLAR A Durch diesen gebauten Kolben lässt sich der Ventilteil (3) gegenüber dem Stand der Technik wesentlich einfacher herstellen.

Control valve for a camshaft adjuster

Control valve for a camshaft adjuster

Die Erfindung betrifft ein Steuerventil für einen hydraulischen Nockenwellenversteller einer Brennkraftmaschine, bei dem ein Aktuator auf ein in einen Steuerkolben (5) eingepresstes Druckstück (12) einwirkt. DOLLAR A Zur Vermeidung eines Verklemmens des Steuerkolbens (5) in dem Ventilgehäuse des Steuerventils in Folge einer Aufweitung des Steuerkolbens (5) aufgrund des Einpressens des Druckstückes schlägt die Erfindung vor, das Druckstück (12) und/oder den Steuerkolben (5) im Einpressbereich (13) mit radialen Ausnehmungen (34) zu versehen, über die die Fügekräfte und eine resultierende radiale Aufweitung des Steuerkolbens (5) vorgegeben werden. Alternativ oder zusätzlich kann die Mantelfläche des Steuerkolbens (5) im Einpressbereich (13) eine Querschnittsverringerung aufweisen. The invention relates to a control valve for a hydraulic camshaft adjuster of an internal combustion engine, in which an actuator acts on a pressure piece (12) pressed into a control piston (5). DOLLAR A To avoid jamming of the control piston (5) in the valve housing of the control valve as a result of expansion of the control piston (5) due to the pressing of the pressure piece, the invention proposes, the pressure piece (12) and / or the control piston (5) in the press-fit (13) to be provided with radial recesses (34), via which the joining forces and a resulting radial expansion of the control piston (5) are specified. Alternatively or additionally, the lateral surface of the control piston (5) in the press-fit region (13) can have a cross-sectional reduction.

Pressure-sealed piston-and-cylinder assembly

Control valve for a camshaft adjuster

A control valve ( 14 ) for a device ( 1 ) for modifying the control times of gas exchange valves ( 110, 111 ) of an internal combustion engine ( 100 ) is provided. A check valve is arranged inside an annular groove ( 44 ) which is formed on one of the components of the control valve ( 14 ) and through which a pressurized medium flows. This reduces the assembly costs.

Membranverbundpumpe.

Control valve

Digital servo valve system

A novel digital servo valve system for use in displacing an actuator is capable of operating either in closed or open loop mode. The system includes a controller that compares computed values of actuator parameters with preselected parameter values and iteratively determines therefrom command signals for the servo valve. The servo valve is characterized by a ball screw mechanism that eliminates mechanical backlash and a torsion bar which increases radial and angular compliance. A servo valve provided according to the present invention also displays reduced flow forces using a simple, inexpensive valve body in combination with a uniquely configured displaceable spool.

Pneumatically shifted reciprocating pump

A pneumatically actuated reciprocating fluid pump and shuttle valve combination is pneumatically shifted by pressurized air that exhausts from a respective pressurized bellows, diaphragm, or piston chamber, as the bellows, etc. nears the end of its pressure stroke (the exhaust stroke of the pumped fluid). This pressurized air exhausts from the bellows chamber via a shifting piston and cylinder mechanism within the bellows chamber that opens the bellows chamber at a specified location or point in the pump pumping cycle. The pressurized air exhaust from the bellows chamber acts on the end of the shuttle valve spool element to shift the spool element to its opposite position, which reverses the application of pneumatic pressure and atmospheric exhaust between the two bellows chambers to actuate the reciprocating pump.

Low-flow valve

A low-flow diaphragm valve is disclosed having a flexible diaphragm that cooperates with a portion of the valve body to open and close the valve. The diaphragm may have a portion for seating in a passage between the inlet and outlet of the valve and may have one or more ribs for seating against other portions of the body located around the passage. While the valve body may include openings or interruptions to permit fluid and small particulate matter to flow through the valve, the ribs and openings block or restrict particulate matter of relatively large size from flowing to the passage between the diaphragm and the valve body. With this structure, the valve will function even when particulate matter is trapped between one or more of the diaphragm portion that sits in the passage and ribs, on the one hand, and the body on the other hand.

Valve

Valve

Passive fluid flow regulator for constant flow rate drug delivery and corresponding drug infusion device

A fluid flow regulator (1) of the passive type is disclosed which has a fluid inlet adapted to be connected to a fluid reservoir and a fluid outlet (13) adapted to be connected to a patient's body. The regulator comprises a rigid substrate (2) and a resilient membrane (3) tightly linked together so as to define a cavity (6) therebetween which is connected to the fluid outlet while the membrane has a first surface (12) opposite the cavity which is connected to the fluid inlet. The membrane has a plurality of through holes (15) contiguous with the cavity, to define a pathway for a fluid from the fluid inlet to the fluid outlet, and is flexible so as to be able to come into contact with the substrate as a fluid applies a sufficient pressure on the first surface. The through holes are arranged such that, when the fluid pressure increases, they close one after the other to increase the regulator fluidic resistance so that a fluid flow rate would be substantially constant as a function of the pressure applied on the first surface within a predefined pressure range.

Air valve with connection device to prevent icing

Spool-type selector valve

Oil control valve

오일컨트롤밸브(27)는 원통상의 밸브하우징(28)과, 액추에이터(3)에 작동유를 유도하는 다수의 관로(34) 및 (35)에 대응해서 밸브하우징의 외주부에 형성된 포트(41) 및 (42)를 포함한다. 밸브하우징(28)에는 각 포트마다에 포트(41) 및 (42)와 관로(34) 및 (35)의 연통을 개재하는 전주홈(45) 및 (46)이 설치되어 있다. The oil control valve 27 includes a port 41 formed in the outer circumference of the valve housing in correspondence with the cylindrical valve housing 28 and the plurality of pipes 34 and 35 for guiding hydraulic oil to the actuator 3, and (42). The valve housing 28 is provided with electric pole grooves 45 and 46 via communication between the ports 41 and 42 and the conduits 34 and 35 for each port.

Valve seat assembly for hydraulic valves

FIELD: machine building. SUBSTANCE: valve seat assembly for use in hydraulic valves is proposed. The offered valve seat includes a seal located between a valve barrel (316) and body (306), so, when the valve is in a position of closure, the outer seating surface of the gate (344), being in a sliding contact with a barrel, seats with a sliding contact on elastic gasket, closing the fluid medium flow through the valve body, and the back of the gate (344) does not contact the other seating surface. The named sealing comprises C-shape gasket and has an open part (364), faced to injected process fluid medium flowing through the valve body, and the pressure of process fluid medium forces down the seal to the seating surface (366). EFFECT: perfected design. 16 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 527 813 C2 (51) МПК F16K 3/24 (2006.01) F16J 15/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011149845/06, 16.04.2010 (24) Дата начала отсчета срока действия патента: 16.04.2010 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.07.2013 Бюл. № 21 (73) Патентообладатель(и): ФИШЕР КОНТРОЛЗ ИНТЕРНЕШНЕЛ ЛЛС (US) R U 26.05.2009 US 12/472,102 (72) Автор(ы): ПЕРРО Аарон Эндрю (US), БЛЭКФОРД Рохель Мария (US), ВЕСТУОТЕР Дэйвид Джеймс (US), КАУФМАНН Рональд В. (US) (45) Опубликовано: 10.09.2014 Бюл. № 25 2003159737 A1, 28.08.2003. EP 0602519 A1, , 22.06.1994. RU 2037715 C1, 19.06.1995. SU 1013638 A1, 23.04.1983 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.12.2011 2 5 2 7 8 1 3 (56) Список документов, цитированных в отчете о поиске: US 2530433 A, 21.11.1950. US 2 5 2 7 8 1 3 R U US 2010/031449 (16.04.2010) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2010/138255 (02.12.2010) Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", пат. пов. М.В. Хмара, рег.N 771 (54) УСТРОЙСТВО СЕДЛА КЛАПАНА ДЛЯ ПРИМЕНЕНИЯ В ГИДРАВЛИЧЕСКИХ КЛАПАНАХ (57) ...

캠축 조정장치용 제어 밸브

본 발명은 내연기관의 유압식 캠축 조정 장치용 제어 밸브에 관한 것이다. 상기 제어 밸브의 경우, 액추에이터는 제어 피스톤(5) 내부에 압입된 압력 부재(12)에 작용한다. 상기 압력 부재의 압입을 바탕으로 제어 피스톤(5)이 팽창함에 따라 상기 제어 밸브의 밸브 하우징 내에 제어 피스톤(5)이 고착되는 것을 방지하기 위해, 본 발명에 따라, 압입 영역(13)에서 상기 압력 부재(12) 및/또는 상기 제어 피스톤(5)에 반경 방향 리세스부(34)가 제공된다. 그리고 그 반경 방향 리세스부를 통해 결합력과 그에 따라 발생하는 제어 피스톤(5)의 팽창이 사전 설정된다. 이에 대체되거나, 또는 추가되는 방법에 따라, 상기 제어 피스톤(5)의 원주면은 압입 영역(13)에서 감소된 횡단면을 포함할 수 있다. 내연기관, 캠축 조정장치, 제어 밸브, 압력 부재, 압입, 제어 피스톤

유동력 보상이 가능한 스풀 밸브 및 이를 이용한 유압밸브, 공압 밸브, 3웨이 제어 밸브, 4웨이 제어 밸브

본 발명은 스풀 로드의 외주부로서 슬리브의 공급 유로측에 유동력 보상 돌출링이 일체로 형성된 것을 특징으로 하는 유동력 보상이 가능한 스풀 밸브 및 이를 이용한 유압 밸브, 공압 밸브, 3웨이 방식의 밸브, 4웨이 방식의 밸브를 제시함으로써, 슬리브 자체의 구조 변형을 요구하지 않고 스풀의 간단한 구조 변화에 의해 유동력을 보상할 수 있도록 한다.

결빙을 방지하기 위한 블리드 장치를 갖는 공기 밸브

본 발명은 배기 포트 지역을 가열하여 결빙되는 것을 방지하기 위해 가압된 공기 챔버로부터 배기 포트 내로 밸브 컵 내의 구멍을 통해 공기를 유출하는 왕복 공기 펌프 상의 공기 밸브에 관한 것이다. 상기 구성은 스폴 밸브에서의 사용에도 적당하다.

Triple valve (versions) and device for hand dispensing of foamy and/or carbonated beverages into open containers and its usage

FIELD: food industry. ^ SUBSTANCE: inventions group relates to food industry namely to trading equipment for pouring beer and other foamy and\or carbonated beverages from isobarometric container into plastic bottles in shops, kiosks, restaurants and bars. Triple valve contains hollow cylinder body with two flumes and one discharge channel and mechanism of connection or disconnection of one of flumes with discharge channel set in the casing with control lever. Casing has three sequentially set ring cavities. Flumes are connected to the first and the third cavities. Discharge channel is connected to the middle cavity. Flutes connection and disconnection mechanism contains valve. The valve has elastic end seal and axial canal with ring elastic seal. The valve is placed in casing's third cavity with axial out-in traverse possibility. Rod is placed in cock's casing with axial out-in traverse possibility. One side of rod is put outside of the casing and kinematically connected to the control stick. Its other end is placed in the opposite casing's third cavity, set through valve's axial channel and kinematically connected to it with the first spring which wrings valve from rod's end to this valve's seat. Seat is formed by bulge in casing's wall between its second and third cavity and ring bulge on the rod. Rod has axial channel, closed with dummies from both sides. There is the first raw of radial through holes, made in the rod for connection of its axial channel with the first casing cavity. There is the second raw of radial through holes made in the rod beneath its ring bulge along casing chambers placed for connection between axial rod channel and the second casing cavity. All casing's cavities are hermetically isolated from each other. There is second version for triple valve manufacturing and device for hand dispensing of foamy and/or carbonated beverages into open containers. This device has two triple valves according to the first and ...

Suction cleaning valve device

에너지 절약 밸브

에너지 절약 밸브는 주밸브 본체의 일단측에 제 1 출력포트로부터 비조압의 압축 에어가 출력되는 위치에 스풀을 스위칭하는 스풀 구동부를 가짐과 아울러 상기 주밸브 본체의 타단측에 제 2 출력포트로부터 설정압으로 조압된 압축 에어가 출력되는 위치에 상기 스풀을 스위칭하는 조압부를 갖고, 상기 조압부는 상기 스풀과 일체의 조압 피스톤과, 상기 조압 피스톤에 상기 제 2 출력포트의 에어 압력을 작용시키는 수압면과, 상기 수압면이 면하는 실린더실과, 상기 실린더실을 상기 제 2 출력포트에 연통시키는 조압용 유로와, 상기 조압 피스톤에 상기 수압면에 작용하는 에어 압력과 반대 방향으로 바이어싱 포오스를 작용시키는 압력 설정용의 탄성부재를 갖는다.

Device and method for handling lase-of-polymerization substance, device for extracting liquid from device under reduced pressure, and method of manufacturing lase-of-polymerization substance

A device capable of distilling and refining lase-of-polymerization substance, wherein piping is performed so that, when a strainer during operation is switched to a spare one, the strainer can be switched after air inside the spare strainer is replaced with pumped liquid to eliminate the air in the spare strainer so as to switch the strainer installed on the upstream side of a liquid extracting pump in a vacuum distillation tower for distilling and refining the lase-of-polymerization substance without causing any trouble with the operation of the distillation tower, and a means for measuring a pressure difference across the upstream side and downstream side of the strainer during operation is installed to switch, at an appropriate timing, two or more units of strainers disposed parallel with each other so as to efficiently manufacture the lase-of-polymerization substance.

Electrically controlled hydraulic valve

FIELD: machine building. SUBSTANCE: proposed valve comprises valve assembly. The latter includes common bypass valve 4, inlet channel 20, outlet channel 22, return channel 23 communicated with bypass valve, and axially moving gate device 8, 15. In first position, device 8, 15 allows fluid to flow between channel 22 and channel 23 with channel 20 closed. In second position, device 8, 15 is axially shifted with respect to first position to allow fluid to flow between channel 20 and channel 22 with channel 23 closed. Spring 14 aims at driving device 8, 15 to its first position. Electrical drive 19 is connected with gate device and comprises permanent magnet 24 and electrical coil 25 with magnetic core. One of said device, either magnet or core, makes stator. Another device makes moving part. The latter is connected with gate device 8, 15 to displace the latter from first position into second position. Electrical drive operated from the mains. EFFECT: reduced electric power consumption. 9 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 444 666 (13) C2 (51) МПК F16K 31/02 (2006.01) H01F 7/06 (2006.01) H01F 7/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008151073/06, 03.05.2007 (24) Дата начала отсчета срока действия патента: 03.05.2007 (73) Патентообладатель(и): ЭЙКЕР САБСИ ЛИМИТЕД (GB) (43) Дата публикации заявки: 20.07.2010 Бюл. № 20 2 4 4 4 6 6 6 (45) Опубликовано: 10.03.2012 Бюл. № 7 (56) Список документов, цитированных в отчете о поиске: EP 0349723 A1, 10.01.1990. SU 143287 A, 09.02.1962. SU 1576764 A1, 07.07.1990. US 4310143 A, 12.01.1982. GB 2039150 A, 30.07.1980. DE 1550378 B1, 11.02.1971. GB 2240158 A, 24.07.1991. 2 4 4 4 6 6 6 R U (86) Заявка PCT: GB 2007/001634 (03.05.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.01.2009 (87) Публикация заявки РСТ: WO 2007/138244 (06.12.2007) Адрес для переписки: 191002, Санкт-Петербург, а/я 5, ООО "Ляпунов и партнеры", ...

Steering device with hydrostatic servo drive

УСТРОЙСТВО ДЛЯ РУЛЕВОГО УПРАВЛЕНИЯ С ГИДРОСТАТИЧЕСКИМ СЕРВОПРИВОДОМ , в частности, дл  транспортных средств, содержащее шестеренный насос, имею11ий соединенное с корпусом зубчатое колесо с внутренним зацеплением и установленную в нем шестерню с внешним зацеплением, имеющую на один зуб меньше, чем зубчатое колесо, и соединенную с приводным валом через шарнирную муфту с боковым люфтом, поворотный золотник , размещенный в корпусе с возможностью осевого перемещени  и взаимодействи  с приводным валом, причем между приводным валом и сое .диненным с зубчатым колесом с внешним зацеплением ш рнирным валом расположен упругий элемент, выполненный в виде двух изогнутых плоских пружин, сопр женных между собой выпуклыми сторонами, установленных между прижимными пластинами с предварительным нат жением в прорез х приводного вала и пружинодержател , g св занного с шарнирным валом, отличающеес  тем, что, с О) целью повышени  срока службы и точности центрировани  золотника, в приводном валу со стороны золотника вьтолнена цилиндрическа  полость, в которой размещен пружинодержатель, упругий элемент расположен вдоль оси золотника, а концы изогнутых плоских пружин со стороны прижимных пластин ю ю ю закруглены. A STEERING DEVICE WITH A HYDROSTATIC SERVO DRIVE, in particular for vehicles, which contains a gear pump, has a gear with internal gear connected to the body and an external gear with gear that has one tooth smaller than the gear and one gear drive shaft through a hinged coupling with side play, a rotary valve placed in the housing with the possibility of axial movement and interaction with the drive shaft, and between the drive shaft and soy A single element with a gear wheel with external gearing of the hinge shaft is an elastic element made in the form of two bent flat springs, conjugated between each other by convex sides, installed between the pressure plates with pre-tension in the slots of the drive shaft and the spring holder, g connected with A hinge shaft, characterized in ...

Distributing arrangement for hydraulic booster for vehicle steering system

The invention provides a control valve having a valve piston and coacting valve sleeve for flow control in booster power steering systems of the kind having a servo steering pump and a metering pump, especially as used in motor vehicles having power steering cylinders. The valve piston and valve sleeve have novel rings and grooves that effect a throttling flow control as the valve piston is shifted in steering, which substantially reduces vibration or chatter of the valve, permits ready return to neutral of the valve piston and the danger of cavitation in the power cylinder precluded. The dimensioning of special rings on the piston coacting with rings in the valve sleeve produces the advantages of the invention particularly when the valve is controlling high pressures. The arrangement effects a throttling of pressure flow from the metering pump to the power cylinder such that, when the valve piston is shifted for steering, low throttling is at first effected followed by high throttling as the valve piston moves to its fully shifted position, corresponding to initial low pressure in a power cylinder reaching high pressure in the course of power piston travel, as pressure flow is metered from the manually operated metering pump to the control valve.

Solenoid spool valve

本发明公开一种电磁滑阀。该电磁滑阀包括：滑阀，该滑阀具有设置有供给压力口、控制压力口、排出口的套筒和支撑在该套筒中用于在该套筒内轴向移动的轴；和用于沿着第一轴向方向为所述轴提供轴向驱动力的电磁致动器；其中该轴具有第一活塞和第二活塞，该第一活塞具有用于打开/关闭供给压力口的第一阀面；该第二活塞具有用于打开/关闭该排出口的第二阀面，其中第一活塞具有比第二活塞更大的与控制压力口流体连通的活塞面表面积。

Device for reducing fluid pressure

Устройство для снижения давления текучей среды содержит группу уложенных в стопу кольцевых пластин. У каждой пластины имеются наружный периметр и полая центральная часть, которые при укладке кольцевых пластин одна на другую с образованием стопы расположены концентрично относительно продольной оси стопы. Каждая пластина дополнительно содержит входной проточный сектор и выходной проточный сектор, а также пространственно разделенные крепежные отверстия, каждое из которых снабжено каналом для текучей среды, сообщающимся с потоком текучей среды, текущим через устройство. 13 з.п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 595 313 C2 (51) МПК F16K 47/02 (2006.01) F16K 47/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012113414/06, 09.04.2012 (24) Дата начала отсчета срока действия патента: 22.06.2007 Приоритет(ы): (30) Конвенционный приоритет: 2009101946 31.07.2006 (73) Патентообладатель(и): ФИШЕР КОНТРОЗ ИНТЕРНЭШНЛ ЛЛС (US) (45) Опубликовано: 27.08.2016 Бюл. № 24 (54) УСТРОЙСТВО ДЛЯ СНИЖЕНИЯ ДАВЛЕНИЯ ТЕКУЧЕЙ СРЕДЫ (57) Реферат: Устройство для снижения давления текучей стопы. Каждая пластина дополнительно содержит среды содержит группу уложенных в стопу входной проточный сектор и выходной кольцевых пластин. У каждой пластины имеются проточный сектор, а также пространственно наружный периметр и полая центральная часть, разделенные крепежные отверстия, каждое из которые при укладке кольцевых пластин одна на которых снабжено каналом для текучей среды, другую с образованием стопы расположены сообщающимся с потоком текучей среды, концентрично относительно продольной оси текущим через устройство. 13 з.п. ф-лы, 4 ил. R U 2 5 9 5 3 1 3 Адрес для переписки: 191186, Санкт-Петербург, а/я 230, "АРСПАТЕНТ", М.В. Хмара C 2 C 2 (56) Список документов, цитированных в отчете о поиске: WO 9748930 A1, 24.12.1997;RU 2285185 C2, 20.06.2006;US 6244297 B1, 12.06.2001;WO 9939122 A1, 05.08.1999;US 5769122 A, 23.06. ...

Regulator valve

Fluid force compensating method and spool-type flow control valve

(57)【要約】 【課題】 バケット形状を複雑な形状にすることなく、 所要の旋回流を生じさせることができる流体力補償方法 及びスプール型流量制御弁を提供すること。 【解決手段】 スプール（１）がスリーブ（Ｓ）内に静 圧軸受（１９）で支持され、スプール（１）のランド （２）とスリーブ（Ｓ）の円周溝による弁空間（１６） に、静圧軸受（１９）からの流れが流入する流路構造の 流量制御弁の流体力補償方法において、スプール（１） のランド（２）に周溝（４）を形成し、この周溝（４） とスリーブ（Ｓ）とで形成される空間（１６）に軸受か らの流れを軸心へ向けて流入させ、この軸受流れにより 制御流れを旋回させて流体力を補償している。

Hydraulic system for construction machinery

굴삭기를 이용한 굴삭 작업 또는 정지 작업 등을 하는 경우 운전자가 우선 기능을 설정 또는 해제하기 위한 유압시스템을 개시한다. 본 발명에 따른 유압시스템에 있어서, 엔진에 연결되는 제1,2유압펌프와, 제1,2유압펌프에 각각 연결되는 제1,2유압 액츄에이터와, 제1,2유압펌프와 제1,2유압 액츄에이터사이의 유로에 각각 설치되고 절환시 제1,2유압 액츄에이터의 기동, 정지 및 방향전환을 각각 제어하는 스풀들이 구비되는 메인 컨트롤밸브와, 사용자의 조작량에 비례하는 조작신호를 각각 출력하는 제1,2조작레버와, 우선 기능을 위해 사용자에 의한 제1조작레버 또는 제2조작레버의 조작에 따라 제1유압펌프 또는 제2유압펌프를 공유하는 제1유압 액츄에이터 또는 제2유압 액츄에이터측 어느 하나의 스풀에 인가되는 유량을 제한하기 위한 제어장치와, 사용자 판단에 의해 우선 기능으로 전환하거나 우선 기능을 해제할 수 있도록 상기 제어장치의 구동을 제어하는 제어부를 구비하는 것을 특징으로 하는 건설기계용 유압시스템을 제공한다. In the case of performing excavation work or stop work using an excavator, the driver firstly starts the hydraulic system for setting or canceling the function. In the hydraulic system according to the present invention, the first and second hydraulic pumps connected to the engine, the first and second hydraulic actuators respectively connected to the first and second hydraulic pumps, the first and second hydraulic pumps, A main control valve provided in the flow path between the hydraulic actuators and provided with spools for respectively controlling start, stop and direction switching of the first and second hydraulic actuators during switching; 1, 2 operating lever, and a first hydraulic actuator or a second hydraulic actuator side which shares the first hydraulic pump or the second hydraulic pump in accordance with the operation of the first operation lever or the second operation lever by the user for the priority function A control device for limiting the flow rate applied to one spool and a control part for controlling the drive of the control device so as to switch to the first function or release the first function by user judgment To provide a hydraulic system for a construction machine as claimed.

Hydraulic valve

길이방향 축(L) 및 길이방향 축(L)을 따라 연장된 수급 개구(14)를 포함하는 밸브 하우징(12)으로서, 밸브 하우징(12)은 공급 연결부(P)의 제1 유동 통과 개구(16), 작동 연결부(A)의 제2 유동 통과 개구(18) 및 탱크 연결부(T)의 제3 유동 통과 개구(20)를 포함하고, 유동 통과 개구들(16, 18 , 20)은 밸브 하우징(12)을 관통하여 흐르는 유압유가 적어도 부분적으로 유동 가능하게 구성된, 밸브 하우징(12); 밸브 하우징(12) 내 수급 개구(14) 안에서 길이방향 축(L)을 따라 축방향으로 이동 가능한, 제어 홈(24)을 갖는 밸브 피스톤(22); 및 밸브 피스톤(22)을 축방향으로 이동시키도록 구성된 이송 장치(26)로서, 이송 장치(26)는 패스 통과 개구들(16, 18, 20)에 대하여 제어 홈(24)을 축방향으로 위치시키도록 구성된, 이송 장치(26)를 포함하는, 유압 밸브(10) 특히 유압 변속 밸브는, 밸브 피스톤(22)이 제1 유동 통과 개구(16)에서 제2 유동 통과 개구(18)로 유압유가 흐르는 유압 밸브(10)의 제1 전환 위치에 반대되는 방향으로 지향된 유압유의 유동력들의 보상이 제공되도록 구성되는 것을 특징으로 한다.

Oil flow control valve for internal combustion engine

flow control device and method

一种流体流控制装置，包括具有流体入口(7)和至少一个流体出口(8)的壳体。第一流体限流器(1)用作在壳体中的腔室(B)的流入端口，第二流体限流器(2)用作腔室(B)的流出端口。第一流体限流器和第二流体限流器构造成用于产生不同的流体流特征；并且，腔室(B)包括致动器件(5a‑l)，该致动器件对腔室中的流体压力变化(ΔP 2 )进行响应。第一流体限流器(1)和第二流体限流器(2)构造为，基于不同的流体特性而施加流体的相应的不同的流体流特征。在使用中，通过允许流体的至少一部分(f)流过第一流体限流器(1)，进入腔室(B)并经由第二流体限流器(2)离开腔室，可以用所发明的流体流控制装置来控制通过壳体的流体流(F)；并且利用当流体的特性变化时在腔室中出现的压力变化(ΔP 2 )，来操作阀装置。

Spool valve

스풀밸브는 종방향으로 분리되는 밸브 하우징을 가지며 이 경우, 하우징 부품들은 종방향 측면을 따라 서로 결합된다. 밸브 하우징의 벽내에는 밸브덕트가 제공된다. 상기 밸브 하우징의 제조를 간단하게 하기 위해, 밸브덕트의 최소한의 길이부분이 밸브 하우징의 분리 경계면 내에서 연장된다. 이러한 점에서, 밸브덕트의 벽은, 분리 경계면에서 서로 인접되는 하우징 부품에 제공되는 보충적인 외주 벽부분에 의해 구성된다. The spool valve has a valve housing that is longitudinally separated, in which case the housing parts are joined together along the longitudinal side. A valve duct is provided in the wall of the valve housing. To simplify the manufacture of the valve housing, the minimum length of the valve duct extends within the separation interface of the valve housing. In this regard, the wall of the valve duct is constituted by a supplementary outer circumferential wall portion provided in the housing parts adjacent to each other at the separation interface.

Valve device

【課題】走行性を向上するとともに小型化を図ることのできる弁装置を提供する。【解決手段】弁装置１００は、走行制御弁ユニット１３０が、左右の走行制御弁ユニット１３０の導出通路１２３同士を連通する走行連通路１２４を有し、メインスプール１７０が、導出通路１２３と走行連通路１２４とを連通または遮断する導出側ランド部１７２と、アクチュエータ通路１２５と排出通路１２９とを連通または遮断する排出側ランド部１７３と、導出側ランド部１７２に設けられ、メインスプール１７０の移動初期段階で、供給通路１２１から導出通路１２３に導かれる作動流体の一部を排出通路１２９に排出する排出部１９２Ｂと、導出側ランド部１７２に設けられ、メインスプール１７０の移動最終段階で、導出通路１２３と走行連通路１２４とを連通する連通部１９２Ａと、を有する。【選択図】図２ Provided is a valve device that can improve traveling performance and can be miniaturized. In a valve device, a travel control valve unit has a travel communication passage that communicates lead-out passages of left and right travel control valve units, and a main spool is connected to the lead-out passage. The lead-out land portion 172 that communicates or blocks the passage 124, the discharge-side land portion 173 that communicates or blocks the actuator passage 125 and the discharge passage 129, and the lead-out land portion 172 are provided in the initial movement of the main spool 170. The discharge portion 192B for discharging a part of the working fluid led from the supply passage 121 to the discharge passage 123 in the step and the discharge-side land portion 172 are provided in the discharge passage 129. 123 and a communication portion 192 </ b> A that communicates the traveling communication path 124. [Selection] Figure 2

Hydraulic control valve with regeneration function

본 발명은 유압펌프의 토출유량, 작업장치의 위치, 재생유량 및 귀환유량이 변하여도 재생통로의 압력이 일정하게 유지되는 재생기능을 구비한 유압제어밸브에 관한 것이다. The present invention relates to a hydraulic control valve having a regeneration function in which the pressure in the regeneration passage is kept constant even when the discharge flow rate of the hydraulic pump, the position of the work device, the regeneration flow rate, and the return flow rate are changed. 본 발명에 따른 재생기능을 구비한 유압제어밸브는 압유가 공급되는 공급통로와 압유를 액추에이터로 공급하는 적어도 하나 이상의 포트와 압유를 외부의 저장탱크로 배출하는 탱크통로와 제1 재생통로가 설치되는 본체와, 본체 내부에 이동 가능하게 설치되어 압유의 흐름을 제어하며 내부에 제2 재생통로가 설치되는 스풀과, 제1 재생통로의 압유의 일부만을 탱크통로로 귀환시킴으로써 제1 재생통로에 일정한 압력을 유지하여 제2 재생통로 측으로 압유를 공급하고, 공급통로 측 압력이 설정압력 이상일 때에는 공급통로의 압력변화에 따라 제1 재생통로의 압력을 일정하게 변화시키는 재생밸브를 포함한다. The hydraulic control valve having a regeneration function according to the present invention includes a supply passage for supplying pressurized oil, at least one port for supplying the pressurized oil to the actuator, and a tank passage for discharging the pressurized oil to an external storage tank and a first regeneration passage installed therein. Constant pressure in the first regeneration passage by returning the main body, the spool which is movably installed in the main body to control the flow of the hydraulic oil and the second regeneration passage is installed therein, and only a part of the pressure oil of the first regeneration passage to the tank passage. And supplying the pressurized oil to the second regeneration passage side while maintaining the pressure, and regenerating the valve to constantly change the pressure of the first regeneration passage according to the pressure change of the supply passage when the supply passage side pressure is equal to or higher than the set pressure. 재생밸브, 헌팅, 유압제어밸브, 캐비테이션 Regeneration Valve, Hunting, Hydraulic Control Valve, Cavitation

4.5 port switching valve

Fluid pressure reducer to be used in processes with high pressure drop factors

FIELD: machine building. SUBSTANCE: proposed device comprises stacked two or more ring plates. Every plate has perimetre and hollow central part arranged concentrically relative to stack lengthwise axis in placing said plates one onto another. Besides, every plate comprises, at least one inlet intermediate sector with inlet flow stage to form first inlet zone and first outlet zone, and, at least, one outlet flow sector with outlet flow stage to form second inlet zone and second outlet zone. Note here that second inlet zone area-to-second outlet zone area ratio is selected to create back pressure to outlet flow stage to provided for subsonic floe nearby aforesaid perimetre. EFFECT: reduced flow pressure and aerodynamic noise. 18 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 453 753 (13) C2 (51) МПК F16K 47/02 F16K 47/14 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009101946/06, 22.06.2007 (24) Дата начала отсчета срока действия патента: 22.06.2007 (56) Список документов, цитированных в отчете о поиске: WO 9748930 А1, 24.12.1997. RU 2285185 С2, 20.06.2006. US 6244297 В1, 12.06.2001. WO 9939122 А1, 05.08.1999. US 5769122 А, 23.06.1998. SU 287338 А1, 19.11.1970. 2 4 5 3 7 5 3 R U (86) Заявка PCT: US 2007/014521 (22.06.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.03.2009 (87) Публикация заявки РСТ: WO 2008/016430 (07.02.2008) Адрес для переписки: 191186, Санкт-Петербург, а/я 230, "АРСПАТЕНТ", пат.пов. М.В.Хмаре, рег. № 771 (54) УСТРОЙСТВО ДЛЯ СНИЖЕНИЯ ДАВЛЕНИЯ ТЕКУЧЕЙ СРЕДЫ, ИСПОЛЬЗУЕМОЕ В ПРОЦЕССАХ С ВЫСОКИМИ КОЭФФИЦИЕНТАМИ ПАДЕНИЯ ДАВЛЕНИЯ (57) Реферат: Устройство для снижения давления текучей среды содержит две или более кольцевых пластин, которые могут быть сложены в стопу. У каждой пластины имеются периметр и полая центральная часть, которые, при укладке кольцевых пластин одна на другую с образованием стопы, расположены концентрично относительно ...