TWO-STROKE INTERNAL COMBUSTIONENGINES

... 1467394 Charging IC engines W FRANKE 18 Feb 1974 [19 Feb 1973] 7291/74 Heading F1B [Also in Division F2] A two-stroke I.C. engine comprises a cylinder 1 divided by a partition 13 into a power chamber 10, 30 and a compression chamber 33, 36, which are respectively divided into working chamber 10 and auxiliary chamber 30 and into a first subsidiary compression chamber 33 and a second subsidiary compression chamber 36. A power piston 12 and compression piston 24 are movable in unison and connected to a crank-shaft 2 and input and exhaust ports 32, 16 communicate with the working chamber 10 when the pistons are at BDC and with the auxiliary chamber when the pistons are at TDC. A valve controlled air intake 19 communicates with the first subsidiary compression chamber 33 and a transfer duct 31, 37 connects via a valve 48 the chamber 33 to the input port 32 and to the chamber 36. A second intake 25 is connected to the chamber 36 via a second valve 27. Mixture drawn in through the second intake ...

RADIAL PISTON MACHINE

Hydraulic device

... 856,693. Pistons. NORTH AMERICAN AVIATION Inc. Aug. 11, 1958, No. 25717/58. Class 122 (1). [Also in Groups XXVIII and XXIX] In a radial cylinder pump or motor the pistons each comprise a piston and slipper assembly 10. The piston portion is thinwalled and of steel and has a spherical portion 40 engaging the cylinder bore; secured within the piston is an aluminium plug 44 which forms with the piston a passage 46 so that liquid from the cylinder may flow through a non-return valve 49 to a lubrication basin 47 within the slipper portion 12 which has a spherical portion 13 engageable with the track ring 5. Differential expansion between the plug 44 and the piston reduces the passage 46 when the temperature of the pump and liquid increases. A groove 52 is also formed between the piston and plug 44 so that liquid pressure expands the piston into contact with the cylinder. The piston surface may also flatten under load to increase the area of contact with the cylinder bore.

Positive displacement pump

... 839,512. Cylinders. BENDIX AVIATION CORPORATION. Feb. 17, 1958 [April 12, 1957], No. 5124/58. Class 122 (1). [Also in Group XXVIII] In a ball piston pump each cylinder bore 24 is surrounded by a recess 144 which extends substantially coextensively with the length of the cylinder bore swept by the piston whereby the piston and cylinder expand and contract at the same rate.

ROTARY FLUID MACHINES

Improvements in rotary engines

... 864,767. Liquid-pressure engines. WADEFELT, C. I. April 21, 1959, No. 13522/59. Class 69 (2). [Also in Group XXVII] A liquid-pressure engine comprises a housing 2 having a number of radial cylinders 3 provided with pistons 4 carrying rollers 10a, 10b engaging cam rings 6a, 6b, rotatable relative to the housing, and guide rollers 11a, 11b which are mounted on axle pins 9a, 9b at the tops of the piston and co-operate with guide planes 151a, 151b parallel to the axes of the pistons and the motor axis. The cylinders 3 are supplied with fluid pressure from a rotary valve 16 driven by gearing 17 from the cam rings 6a, 6b, which may be secured to a pulley 7 and have a different number of lobes 61, 611 than the number of cylinders, to urge the pistons 4 radially outwards so that the rollers 10a, 10b carried by crossheads 9 resiliently secured to the pistons by bolts 13 and springs 14 bear against the cam rings which are thus rotated relative to the housing fixed ...

RADIAL PISTON MOTOR OR PUMP

... 1528298 Liquid pressure engines CATERPILLAR TRACTOR CO 9 May 1977 [7 Oct 1976] 19298/77 Heading F1A In a fluid motor comprising a fixed body 22 with a central bore and radial piston and cylinder means 60, a rotary valve 100 directs fluid to and allows flow of fluid from each piston and cylinder means in turn and the piston and cylinder means co-operate with an orbiting ring 52 with teeth 78 which intermittently engage teeth 80 on a rotary casing 24. In the embodiment two such motors are inter-connected. A crank-shaft 64 with offset cylinders 73, 74 maintain one orbiting member 180 degrees behind the other. The valve is connected by a gear train to the crank-shaft. By rotating casing 24 the apparatus may be used as a pump.

RADIAL PISTON FLUID HANDLING DEVICES

... 1495727 Reciprocating pumps K EICKMANN 28 Nov 1974 51658/74 Heading F1A In a radial-piston pump a rotor 9 has pistons 2 with pivoted shoes 12 that engage with a cam, or "guide", ring 33 and lie between annular plates 14 secured to either the rotor or the guide ring, the radial dimensions of the shoes being less than those of fins 23 extending circumferentially of the rotor between the cylinders 10 for the pistons. The shoes when the respective pistons are in the fully retracted position thus lie radially below the outer surfaces of the adjacent fins (as shown on the left-hand sides of Figs. 1 and 2). An annular slot 24 saves the ring 33 from being fouled by the fins. Lubricating and pressure-balancing recesses 16 and passages 21 may be formed in the shoes. Substantially hemi-spherical portions of the shoes are retained in the pistons by virtue of the matching shapes of the seats for these portions. A second embodiment, Figs. 5 and 6 (not shown), differs in that the shoes are free to move ...

Improvements in fluid pressure pumps or motors

... 902,012. Reciprocating pumps. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. May 4, 1960 [May 4, 1959; Nov. 25, 1959], Nos. 15117/59 and 39968/59. Class 102(1). [Also in Group XXIX] A fluid pressure pump or motor includes piston type inlet and outlet valves in which one or both valves includes a sleeve in which the valve piston slides and which has a port in its wall controlled by the valve piston and registering with a cylinder port and means for adjusting the position of the sleeve relative to the bore in which the sleeve is fitted to vary the timing for opening and closing the valve. As shown in Fig. 1, a hydraulic motor having a plurality of radial cylinders 7 reciprocably mounting pistons 5 whose rods 3 formed with slippers 2 engage an eccentric 1 is fitted with piston type inlet and outlet valves 13, 14 respectively. Each valve comprises a twolanded valve piston 25 and a loosely fitting push-rod 15 urged by a spring against a tappet 18 which engages a cam 16 secured to the eccentric ...

RADIAL PISTON MACHINES HAVING PISTON SHOES

... 1499161 Reciprocating pumps and motors K EICKMANN 7 Jan 1975 631/75 Heading F1A [Also in Division F2] In a radial piston pump or motor comprising a cylinder block 9 with pistons 8 engaging a track ring 12 located outwardly or inwardly of the cylinder block, the track ring being stationary and the cylinder block rotatable, or vice versa, the pistons 8 each have a pivoted slipper 7 formed with hydrostatic bearing recesses 2 supplied with working liquid via piston passage 86 and a hydrostatic bearing recess 23 between the slipper pivot and the piston. The slipper has cutaways 63 permitting entry of the slipper within cylinder block transverse slots 91. Guide ribs (13), Fig. 1 (not shown), on the clyinder block are located on either side of slots 91. Hydrodynamic bearings 65 are also provided on the slipper face and fed with liquid by notches 66, the bearing surfaces being separated by grooves 1. In other embodiments, the bearing surfaces are separated by transverse grooves, Fig. 6 (not shown ...

HYDROSTATISCHE KOLBENMASCHINE

RADIAL PISTON PUMP OR RADIAL PISTON MOTOR WITH ROTARY CYLINDER BLOCK

RADIAL PISTON ENGINE - PUMP OR ENGINE - WITH STATIONAREM OR WITH ROTARY CYLINDER BLOCK

W6-Motor

Die Erfindung betrifft einen W6-Motor mit zwei auf einer gemeinsamen Kurbelwelle (1) nebeneinander angeordneten W3-Motoreinheiten (30, 40). Erfindungsgemäß ist vorgesehen, dass die Einlassventile (4) in in dieselbe Umfangsrichtung um die Kurbelwelle (1) orientierten Wandbereichen (31) der jeweiligen Zylinder (R1, R2, R3; L1, L2, L3) gelegen sind, dass die Auslassventile (5) in in dieselbe, aber zu der Umfangsrichtung der Wandelemente (31), in denen sich die Einlassventile (4) befinden, entgegengesetzte Umfangsrichtung um die Kurbelwelle (1) orientierten Wandbereichen (21) gelegen sind, dass die von einander gegenüberliegenden seitengesteuerten Auslassventile (5) und seitengesteuerten Einlassventile (4) in einander gegenüberliegenden Wandbereichen (21, 31) des von in der jeweiligen W3-Motoreinheit (30, 40) benachbart liegenden Zylindern (R1, R2, R3; L1, L2, L3) begrenzten V-förmigen Raumes (15) gelegen sind, dass jedes Auslassventil (5) eine Auslassleitung (20) verschließt, die vom Ventilsitz ...

W6-Motor

Die Erfindung betrifft einen W6-Motor mit zwei auf einer gemeinsamen Kurbelwelle (1) nebeneinander angeordneten W3-Motoreinheiten (30, 40), wobei in beiden W3-Motoreinheiten(30, 40) die Achsen von benachbart liegenden Zylindern (R1, R2, R3; L1, L2, L3) denselben Bankwinkel von 30 bis 70°, einschließen und die Auslassleitungen (20) der die gemeinsame Kurbelwelle (1) antreibenden Kolben (24) aufweisenden Zylinder (R1, R2, R3; L1, L2, L3) zu einem Auspuff (18) geführt sind, wobei jeder Zylinder (R1, R2, R3; L1, L2, L3) zumindest zwei Einlassventile (4) und zumindest ein Auslassventil (5) aufweist. Erfindungsgemäß ist vorgesehen,- dass die Einlassventile (4) für die einzelnen Zylinder (R1, R2, R3; L1, L2, L3) der beiden W3-Motoreinheiten (30, 40) in dieselbe Umfangsrichtung um die Kurbelwelle (1) orientierten Wandbereichen (31) der jeweiligen Zylinder (R1, R2, R3; L1, L2, L3) oder Seitenbereichen (51) ihres Zylinderkopfes (Z) gelegen sind,- dass die Auslassventile (5) für die einzelnen Zylinder ...

PISTON SLIPPER FOR RADIAL PISTON PUMPS OR - ENGINES

DEVICE FOR THE REGISTRATION OF THE CYLINDER CAPACITY OF A HYDRAULIC MACHINE, MISTAKE WITH VARIABLE CYLINDER CAPACITY.

PISTON ENGINE WITH AT LEAST TWO PISTONS.

RADIAL PISTON MOTOR OR - PUMP.

ROTARY INTERNAL-COMBUSTION ENGINE

COMPRESSED AIR ENGINE.

Piston engine

RADIAL PISTON ENGINE, IN PARTICULAR PUMP OR ENGINE, WITH ROTARY CYLINDER BLOCK

RADIAL PISTON PUMP OR RADIAL PISTON MOTOR WITH ROTARY CYLINDER BLOCK

RADIAL PISTON ENGINE - PUMP OR ENGINE - WITH STATIONAREM OR WITH ROTARY CYLINDER BLOCK

Hydraulic radial piston engine

MULTI-CYLINDER POSITIVE DISPLACEMENT MACHINES

Fluid machines

CRANK MECHANISM

RECIPROCATING PISTON AND ORBITAL THRUST PLATE ENGINE

Design method for swinging arm for fluid transfer device

Design method for swinging arm for fluid transfer device Abstract The invention relates to a design method for a swinging arm for the fluid transer device. The method comprises providing a fixed end for mounting, the method further comprises providing a triggering end parallel to the fixed end, connecting the triggering end with the fixed 5 end through a vertical arm vertical to the fixed end; arranging a through hole for matting with the extension spring to the triggering end at the middle portion thereof has; arranging a beak-like rod to the triggering end away from the vertical arm; arranging for the angle made with the beak and the rod of the beak-like rod to be an obtuse 10 angle, arranging for the end of the beak to be round, arranging for the connection bewteen the rod and the beak to be round; respectively arranging a first plane and a second plane to the rod and beak each facing the side of triggering block, they tangentially connect with each other through a first arcuate surface ...

A rotary and reciprocating internal combustion engine and compressor

RADIAL PISTON PUMPS

RECIPROCATING ROTARY ENGINE

RECIPROCATING ROTARY ENGINE Rotary engine having a hollow, stationary block with manifolds for air inlet and exhaust valving and means for supplying fuel. The block supports one or more inline cylinders which are provided with opposed pistons equipped with rigid and constrained piston rods. The rods carry bearings that run along a cam track surface interior . to a disc, the outer surface of which is a right circular cylinder. The surrounding right circular cylinder rotates as a result of the linear movement of the opposed pistons thereby providing mechanical power. The cam surface is a continuous track which determines the out put motion of the piston movement between top and bottom dead center. Arcuate areas at top and/or bottom dead center permit constant volume combustion and/or exhaust as desired during a particular cycle, whether that cycle be Otto or Diesel and whether it be two or four stroke.

OSCILLATORY MOTION APPARATUS

Oscillatory motion apparatus has a first reciprocating rod oriented generally perpendicularly with respect to a second reciprocating rod. A first trammel gear is pivotally secured to the first and second rods. Reciprocation of the rods produces responsive rotation of the trammel gear. An output gear may be rotated responsive to rotation of the trammel gear. The invention may be embodied in an engine block and two or more pairs of opposed cylinders each containing pistons adapted for reciprocation therein is provided. The rods, which may be connecting rods, connect pairs of opposed pistons. The connecting rods are preferably oriented generally perpendicularly with respect to each other. The connecting rods are rotatably connected to the trammel gear. Reciprocation of the pistons results in rotation of the trammel gear which is operatively associated with an output gear to produce rotary output. In one embodiment a bifurcated connecting rod permits two trammel gears to be employed with corresponding ...

HYDRAULICALLY ACTUATED INDEXING MECHANISM

OF THE DISCLOUSRE: An indexing mechanism comprising a member adapted to be advanced a predetermined amount and along a predetermined path, a pair of spaced drivers, and a control valve for operating the drivers in an alternative manner. The member adapted to be advanced defines a profile surface including a plurality of spaced radial segments. Each radial segment includes a crown section which is joined to an adjacent crown section by two oppositely directed ramps defining a fillet radius therebetween. The spacing between the drivers being such that when one driver is urged against a crown section the other driver acts against a fillet radius. The drivers are operated by the control valve 180.degree. out of phase relative to each other. A driver, after moving off a crown section, coacts with a ramp to impart a driving force to the member. The driving force being sufficient to move the member in an indexed fashion the predetermined amount of its movement.

ACCELERATIVE GEAR SYSTEM

La présente invention a pour but de proposer un nouveau type engrenage permettant d'une part , lorsque les pièces leurs sont rattachées directement, de permettre à celles-ci de réaliser des mouvements spécifiques, et d'autre part, lorsque les pièces sont plutôt rattachées aux manetons des vilebrequins qui les supportent, de produire des accélérations et décélérations circulaires, ou rectilignes ces deux actions pouvant être produites simultanément.

HIGH EFFICIENCY RADIAL PISTON PUMP OR MOTOR WITH IMPROVED FLOW PATTERN

POLYTURBINE WITH BACKFLOW PREVENTER II

La présente invention a pour but de compléter notre invention titrée Polyturbines énergétiques et antirefoulement, et ce premièrement en proposant des méthodes supplémentaires de soutient des structures paliques, deuxièmement en proposant des manières d'améliorer la forme des cylindres de ces machines, et finalement en proposant une synthèse générale de ces types de machines et des machines poly inductives à pale simple en général.

FINAL SYNTHESIS OF POLY INDUCTIVE MACHINE II

La présente invention a pour objet de produire quelques nouvelles unités de machines poly inductives dont la principale particularité sera de réaliser une course centrale de pale non circulaire. De plus l'on montrera qu'avec l'utilisation de certains engrenages, que l'on nommera polycamé hybrides, l'on montrera comment l'on peut s'approcher des nouvelles formes de cylindres tout en conservant un centre circulaire. Ces nouvelles machines pourront produire non seulement de nouvelles figures de cylindre mais de plus de plus, de fort taux de compression permettant de les produire de façon diesel. De plus l'on appliquera ces connaissances dans le champ des machines de type semi turbine différentielle. Comme nous avons, préalablement aux présentes, présenté maintes machines rétrorotatives, et de même post rotatives à connotation rétrorotative, nous synthétiseront notre travail et donneront les dernière règles générales permettant de circonscrire la portée de nos brevets ...

OSCILLATORY MOTION APPARATUS

INTERNAL COMBUSTION ENGINE/GENERATOR WITH PRESSURE BOOST

This invention relates to improvements in internal combustion engines. More particularly it relates to increased levels of usable electrical energy production and fuel efficiency within a relatively fixed speed, cam-track style Engine/Generator when combined with the secondary injection or injections of a rapidly expanding medium (usually water) into the engines combustion chambers during and after the combustion process has been initiated. The injection of said medium causing reduced fuel consumption, increased cylinder pressure, an extended usable piston stroke length, and increased usable energy production, while reducing the temperature of the combustion gases in order to control or eliminate the production of the pollutant, NOx and to further reduce thermal pollution exhausted into the atmosphere.

VARIABLE RADIAL FLUID DEVICE WITH DIFFERENTIAL PISTON CONTROL

According to one embodiment, a radial fluid device comprises a cylinder block, a first plurality of pistons including a first piston, and a second plurality of pistons including a second piston. Each of the first plurality of pistons are slidably received within a different one of a first plurality of radially extending cylinders. Each of the second plurality of pistons are slidably received within a different one of a second plurality of radially extending cylinders. The second piston is configurable to begin its stroke at a different time relative to the first piston within the first cylinder pair.

RADIAL PISTON PUMP OR ENGINE

... 2060502 9116547 PCTABS00106 Pompe ou moteur à piston radiaux dans lequel la poussée exercée par les pistons est transmise sur la came (1) par l'intermédiaire d'un roulement à aiguilles (2) qui ne comporte pas de bagues de roulement externe, le roulement des aiguilles (2) s'effectuant sur la came directement (1). Pour diminuer le frottement, les aiguilles sont séparées entre elles par des aiguilles ou des sphères de plus petit diamètre (3).

FLUID ROTARY MACHINE

A fluid rotary machine with a decreased footprint and a reduction in the number of parts. The fluid rotary machine has four heads wherein double-headed pistons are disposed inside cylinders in a crisscross arrangement. The rotational balance between rotational parts including the double-headed pistons is achieved only by first and second balance weights which are inserted and incorporated into both ends of a crank shaft coupled eccentrically to a shaft. The shaft is rotated for the double-headed pistons to linearly reciprocate in the cylinders. The fluid rotary machine has rotary valves for switching between the suction and discharge operations of the fluid for each cylinder chamber. The rotary valves are incorporated into a case to be coaxial and integrally rotatable with the shaft. 15.-. (canceled)6. A four-head fluid rotary machine comprising: a first crank shaft being eccentrically connected to a shaft , the first crank shaft being rotated about the shaft by a first imaginary crank arm which has a radius r; a piston composite body having an eccentric tube body constituted by a first tube body , which is concentrically fitted to the first crank shaft , and second tube bodies , which are extended from the both axial ends of the first tube body and whose axes are second imaginary crank shafts eccentrically disposed with respect to the axis of the first tube body , a first double-headed piston , which is fitted in one of the second tube bodies , and a second double-headed piston , which is fitted in the other second tube body , being disposed inside cylinders in a crisscross arrangement , the piston composite body being rotated about the first crank shaft , by a second imaginary crank arm which has a radius r; and a first balance weight and a second balance weight being respectively inserted and incorporated into both ends of the first crank shaft , wherein the double-headed pistons linearly reciprocate in the cylinders in a state where a first rotational balance ...

FLUID ROTARY MACHINE

The object of the present invention is to provide a fluid rotary machine in which dead spaces can be reduced as much as possible even if the machine is enlarged by arranging rotary valves directly behind cylinder chambers. The fluid rotary machine in which first and second double-headed pistons () intersecting within a case body () move linearly back and forth within cylinders () due to the hypocycloid principle along with rotation of shafts () and in which intake and exhaust cycles are repeated in chambers (), wherein cylinder heads () for closing the cylinder chambers () are each provided with rotary valves () which are rotated by drive transmission from the shafts () and which are provided with intake holes and discharge holes () alternately communicated with the cylinder chambers () via communication channels (), and the rotary valves () intersect longitudinal axis of the opposing pistons () and are capable of rotating parallel with output axil lines. 1. A fluid rotary machine in which first and second double-headed pistons intersecting within a case body move linearly back and forth within cylinders due to the hypocycloid principle along with rotation of shafts , and in which intake and exhaust cycles are repeated in chambers ,wherein cylinder heads for closing the cylinder chambers are each provided with rotary valves which are rotated by drive transmission from the shafts and which are provided with intake holes and discharge holes alternately communicated with the cylinder chambers via communication channels, and the rotary valves intersect longitudinal axis of the opposing pistons and are capable of rotating parallel with output axil lines.2. The fluid rotary machine according to claim 1 , wherein the communication channels claim 1 , which are formed in the cylinder heads so as to communicate each of the cylinder chambers with the intake holes and the discharge holes of the rotary valves claim 1 , are symmetrically formed with respect to a surface including ...

BEARING DEVICE FOR RADIAL PISTON MACHINE

A bearing device includes a piston arranged in a cylinder of a rotor, and a half bearing mounted on the piston to support a roller. The piston includes a recessed holding surface, and holding side surfaces on both axial sides thereof. Each holding side surface includes a ridge portion having an arc-shaped or elliptic-arc-shaped profile protruding toward a radially inner side of the piston. The half bearing includes a partially cylindrical portion, and protruding portions at a circumferential center thereof. Each protruding portion has a protruding portion end face which includes a central recessed surface, and two support recessed surfaces located on both circumferential sides thereof, that have an arc shape or an elliptic arc shape to correspond to the profile of the ridge portion, so that only the two support recessed surfaces are in contact with the ridge portion. 1. A bearing device for a radial piston machine , comprising:a cam ring having a cam face on a radially inner side thereof;a rotor rotatably supported in the cam ring and having a plurality of cylinders formed radially with respect to a rotational axis of the rotor;a cylindrical piston arranged slidably in the cylinder;a cylindrical roller arranged at an axial end of the piston on a cam ring side, a rotational axis of the roller being arranged parallel to the rotational axis of the rotor so that the roller rolls on the cam face; anda half bearing arranged between the piston and the roller, the half bearing being composed of a slide layer forming an inner circumferential surface for supporting the roller and a steel back metal layer forming an outer circumferential surface held by the piston, wherein:the piston comprises, at the axial end on the cam ring side, a recessed holding surface of partial cylindrical shape for holding the half bearing, and holding side surfaces formed on both axial sides of the recessed holding surface;{'claim-text': ['a ridge portion extending in a radial direction of the ...

BEARING DEVICE FOR RADIAL PISTON MACHINE

A bearing device includes a piston arranged in a cylinder of a rotor, and a half bearing mounted on the piston to support a roller. The piston includes a recessed holding surface, and holding side surfaces on both axial sides thereof. Each holding side surface includes a ridge portion having an arc-shaped or elliptic-arc-shaped profile protruding toward a radially inner side of the piston. The half bearing includes a partially cylindrical portion, and protruding portions protruding from axial end faces thereof. Each protruding portion has a protruding portion end face which includes a central recessed surface, and two support recessed surfaces located on both circumferential sides thereof, that have an arc shape or an elliptic arc shape to correspond to the profile of the ridge portion, so that only the two support recessed surfaces are in contact with the ridge portion. 1. A bearing device for a radial piston machine , comprising:a cam ring having a cam face on a radially inner side thereof;a rotor rotatably supported in the cam ring and having a plurality of cylinders formed radially with respect to a rotational axis of the rotor;a cylindrical piston arranged slidably in the cylinder;a cylindrical roller arranged at an axial end of the piston on a cam ring side, a rotational axis of the roller being arranged parallel to the rotational axis of the rotor so that the roller rolls on the cam face; anda half bearing arranged between the piston and the roller, the half bearing being composed of a slide layer forming an inner circumferential surface for supporting the roller and a steel back metal layer forming an outer circumferential surface held by the piston, wherein:the piston comprises, at the axial end on the cam ring side, a recessed holding surface of partial cylindrical shape for holding the half bearing, and holding side surfaces formed on both axial sides of the recessed holding surface; a ridge portion extending in a radial direction of the recessed holding ...

Piston Unit and Hydrostatic Radial-Piston Machine

A piston unit includes a piston which has a rolling element seat configured to rotatably support a rolling element. The rolling element seat has a bearing surface with a surface coating composed of a polymer compound or with a ceramic surface coating. 1. A piston unit of a hydrostatic machine , comprising:a piston including a rolling element seat configured to rotatably support a rolling element, the rolling element seat including a bearing surface,wherein the bearing surface has one of a surface coating composed of a polymer compound and a ceramic surface coating.2. The piston unit as claimed in claim 1 , wherein the polymer compound has a layer thickness of approximately 40 to 80 μm.3. The piston unit as claimed in claim 1 , wherein the polymer compound is a dispersion before it is applied.4. The piston unit as claimed in claim 1 , wherein the polymer compound is applied in at least two layers.5. The piston unit as claimed in claim 4 , wherein the polymer compound in a first layer differs from the polymer compound in a second layer.6. The piston unit as claimed in claim 1 , wherein the ceramic surface coating has a layer thickness of approximately 25 to 35 μm.7. The piston unit as claimed in claim 1 , wherein the surface coating is applied to the bearing surface in the form of an aerosol.8. The piston unit as claimed in claim 1 , wherein the bearing surface is integrally formed with the piston.9. The piston unit as claimed in claim 1 , wherein the rolling element is supported directly on the bearing surface.10. The piston unit as claimed in claim 1 , wherein the surface coating of the bearing surface extends so far in a longitudinal direction of the piston that the rolling element is at least partially supported in a radial direction of the piston.11. A hydrostatic radial-piston machine claim 1 , comprising:at least one piston unit including a piston, the piston having a rolling element seat configured to rotatably support a rolling element,wherein the rolling ...

Patent AU428074B2

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2 Cycle Rotary Engine

본 발명은 2행정 로우터리 엔진에 관한 것으로, 출력축 주변에 서로 대칭된 다수 개의 실린더와 크랭크케이스를 설치하되, 각각의 크랭크축에서 발생되는 고속 회전력은 크랭크축과 일체된 소기어가 엔진 외부 케이스와 연결 고정된 하나의 대기어 주위에 맞물려 돌아, 감속된 회전력으로 출력축에 전달하는 방식으로 엔진 본체 즉, 실린더와 크랭크케이스가 회전하는 2행정 로우터리 엔진에 관한 것이다. The present invention relates to a two-stroke rotary engine, wherein a plurality of cylinders and crankcases symmetrical to each other are installed around the output shaft, and the high speed torque generated in each crankshaft is a small gear integrated with the crankshaft and the engine outer case. It relates to a two-stroke rotary engine in which the engine body, that is, the cylinder and the crankcase, rotate in such a manner as to engage around a fixed fixed gear and transmit it to the output shaft with reduced rotational force. 본 발명은 출력축을 중심으로 모든 부분이 대칭 운동을 함으로서 회전 무게 중심이 항상 일정하여 진동이 적고, 종래의 왕복엔진에서 회전을 안정되게 하기 위해 부착하던 벨런싱 웨이트나 플라이휠과 같은 중량체가 없더라도 안정된 회전력을 얻을 수 있으며, 고속으로 분출되는 베기 가스의 힘을 회전력으로 첨가할 수 있고, 크랭크축에서 발생된 고속 회전력이 감속되어 출력 축에 전달됨으로 실용 회전수에 가까운 출력이 발생된다. 따라서, 경량이면서 고출력, 고효율, 저 진동의 엔진을 얻을 수 있게 된다. 본 발명은 자동차, 발전기, 선박 또는 기타 원동기용 엔진으로 사용될 수 있지만 출력축과 일체로 된 엔진 본체 즉, 중량체인 실린더와 크랭크케이스 및 크랭크축, 커넥팅로드, 피스톤이 회전됨으로서 원심력이 증가하는 자이로 효과로 헬리콥터의 엔진에 보다 효과적으로 적용될 수 있는 2행정 로우터리 엔진에 관한 것이다. According to the present invention, all parts are symmetrically moved around the output shaft, so that the rotational center of gravity is always constant so that the vibration is low, and even in the conventional reciprocating engine, even if there is no weight body such as a balancing weight or a flywheel, the stable rotational force is achieved. It is possible to obtain, and the force of the cutting gas ejected at high speed can be added as the rotational force, and the high-speed rotational force generated in the crankshaft is decelerated and transmitted to the output shaft, thereby generating an output close to the practical rotational speed. Therefore, a lightweight, high output, high efficiency, low vibration engine can be obtained. The present invention can be used as an ...

Кривошипно-кулисная поршневая машина

Изобретение относится к области машиностроения, а именно, к поршневым машинам и механизмам преобразования движения их поршней во вращение вала. Техническим результатом заявленного изобретения являются повышение надежности работы машины, ее ресурса, удельных массогабаритных показателей и улучшение экономичности. Сущность изобретения заключается в том, что поршень и кулиса в поршневой машине соединены между собой при помощи шарнирного узла, по меньшей мере, с плоским шарниром, позволяющим поршню самоустанавливаться по поверхности цилиндра за счет перемещения относительно кулисы в любом направлении в плоскости, пересекающей продольную ось цилиндра. На взаимодействующих поверхностях кулисы и корпуса, воспринимающих реактивный крутящий момент, установлены боковые опорные элементы с контактными поверхностями и с зубчатыми рейками. Между контактными поверхностями боковых опорных элементов размещены катки, причем катки снабжены синхронизирующими зубчатыми колесами, зацепленными с зубчатыми рейками боковых опорных элементов, и с каждой стороны кулисы установлены, по меньшей мере, два катка. При этом опорные элементы и катки установлены с предварительным поджатием взаимодействующих контактных поверхностей опорных элементов и катков. 5 з.п. ф-лы, 10 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 387 843 (13) C1 (51) МПК F01B 9/02 (2006.01) F02B 75/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008140447/06, 14.10.2008 (24) Дата начала отсчета срока действия патента: 14.10.2008 (45) Опубликовано: 27.04.2010 Бюл. № 12 (73) Патентообладатель(и): Захаров Евгений Николаевич (RU) 2 3 8 7 8 4 3 R U пересекающей продольную ось цилиндра. На взаимодействующих поверхностях кулисы и корпуса, воспринимающих реактивный крутящий момент, установлены боковые опорные элементы с контактными поверхностями и с зубчатыми рейками. Между контактными поверхностями боковых опорных элементов размещены катки, ...

HYDRAULIC OR PNEUMATIC ROTARY STEP MOTOR

a. Moteur rotatif pas à pas comprenant plusieurs paires de cylindres alignés dont les pistons coopèrent avec une came solidaire de l'arbre du moteur de manière à imprimer à celui-ci des déplacements angulaires limités en fonction des pressions auxquelles ils sont soumis. b. Selon l'invention, le HP est toujours appliquée aux deux pistons d'une même paire tandis que tous les autres pistons sont exposés à la BP, et la came 54 est de forme généralement elliptique avec des portions latérales concaves 59, 60. c. Application aux commandes hydrauliques ou pneumatiques. at. Rotary stepper motor comprising several pairs of aligned cylinders, the pistons of which cooperate with a cam integral with the motor shaft so as to impart to the latter limited angular displacements as a function of the pressures to which they are subjected. b. According to the invention, the HP is always applied to the two pistons of the same pair while all the other pistons are exposed to the LP, and the cam 54 is generally elliptical in shape with concave side portions 59, 60. c. Application to hydraulic or pneumatic controls.

Radial piston machine

Patent FR2142294A5

Patent FR2275640B1

Fluid-pumped or actuated pumps and motors

Improvements to motor or receptor mechanisms

Hydraulic motor

Balanced radial piston hydraulic pump or motor

Slipper piston ball joint - has ball with shouldered base retained in piston socket by spring clip

Ball joint connection between slipper piston and shoe as used on radial piston compressors. The piston operates in the cylinder and the shoe slides on an eccentrically arranged circular surface. Hardened steel ball (3) is fitted in socket (4) of the piston (1). The shoe (2) has base (5) with cylindrical external surface and with O.

Starter device for internal combustion engines

Rotary hydraulic pump or motor - has pressurised oil and sealing ring grooves to effect sealing

The pistons (14, 27) slide in cylinders (13) and are driven by pressurized oil supplied via passageways (18, 17, 16). In order to prevent breakdown of the lubrication film because of the pressure drop accompanying normal leakage flow from the high pressure end of the cylinder, an annulus (23) cut in the wall of the cylinder is supplied with high pressure oil. The leakage flow is reduced by providing a seal (21) mounted in a second, lower annulus (22). On the low pressure side of the seal there is the danger of oil film breakdown, so to avoid metal to metal contact, the lower end of the cylinder (30) is of greater diameter than the main cylinder.

Hydraulic device functioning as a pump or motor

Improvements to rotary pumps

Patent FR2247629A2

Patent JPS5065901A

Hydraulic motors and pumps

In a hydraulic motor or pump comprising a casing, a shaft, means journalling said shaft in said casing, an eccentric on said shaft, a bearing block within said casing and about said eccentric and having a bore permitting relative rotation between said bearing block and said eccentric, a plurality of hydraulic cylinders formed and grouped in said bearing block radially about said eccentric in a common plane normal to the axis of said shaft, a plunger slidable in each of said cylinders, said plunger having an outer end face, flat faces of abutments formed in said casing at its internal surface for engagement with said outer end faces of said plungers, respectively, means urging said plunger in the direction of said face abutment of said casing during the operation of said motor or pump, and said bearing block having a port communicating between its bore and the interior of each of said cylinder interior, whereby pressure liquid is admitted to the cylinders in turn one after another during the operation of said motor or pump, an improvement in hydrostatic pressure supporting means for keeping said plunger in balance comprises a centrally disposed recess formed in said outer end surface of said plunger in alignment with the axis of said plunger and a port formed in said plunger communicating said recess with said cylinder interior.

Radial-piston engine

一种带有杯形活塞的星形活塞式发动机，活塞与偏心轴的周边接合，在各种情况下，活塞内均装有导向体，导向体径向向外浮动地安装在壳体上，在气缸盖内设有受压流体的出入口。为了利用简单且节省空间的结构实现工作活塞的自动控制，在气缸盖(9)或壳体的相应构件内，可调节地设置控制件(15)，此控制件连接在导向体(5)上，用以控制流体的出入口(19、20)。

Reciprocatingpiston radial engine

Improvements in fluid actuated motors

178,050. White, A. E., (Independent Pneumatic Tool Co.). Oct. 7, 1920. Linkage gears.-An engine for driving hoists, &c. is provided with inclined cylinders containing pistons connected to a common crank 48, and with piston distributing-valves operated from a common adjustable eccentric 67 which is controlled by hand-gearing operating a starting-valve. A tubular extension 59 on the crank-casing cover 46 has mounted thereon a hollow shaft 60 provided with a disc 61 engaging the end 63 of the crankpin 48. The eccentric 67 is arranged around the inner end of the shaft 60 and carries two valveoperating straps 68. The outer periphery of the eccentric is eccentric to the inner periphery which is of greater diameter than the shaft 60. The eccentric carries a rack 76 which engages a transverse pinion 74 rotated by rack teeth 73 upon a shaft 71 longitudinally adjusted for reversal and which carries collars 97, 98 engaging a collar 95 carried by a bushing 89 secured to a surrounding hub 82 the rotary movement of which effects the longitudinal movement of the shaft 71 through a pin-and-slot connection between the bushing 89 and the extension 59. The hub 82 is provided with arms 83, 84 carrying depending reversing- chains and handles and has a lug 135 carrying a ball-headed bolt 133 engaging a rod 132 connected to a spring trigger controlling a starting- valve 119. The ends of the slot in the extension 59 are made straight to ensure complete adjustment of the eccentric before the operation of the starting-valve. The connecting-rods 54, 55 engage a sleeve on the crank-pin, and the forked end of the rod 55 encloses the end of the rod 54. The crank-casing contains a drain 170, and a sight opening to determine the quantity of oil therein

RADIAL PISTON MACHINE

FREE WHEEL MACHINE

Fluid progressive clutch and gear change

Bearing device for radial piston machines

Eine Lagervorrichtung (1) umfasst einen Kolben (5), der in einem Zylinder (21) eines Rotors (2) angeordnet ist, und ein Halblager (6), das auf dem Kolben montiert ist, um eine Rolle (4) zu tragen. Der Kolben weist eine vertiefte Haltefläche (54) und seitliche Halteflächen (55) an beiden axialen Seiten auf. Jede seitliche Haltefläche umfasst einen Stegabschnitt (550) mit einem bogenförmigen oder elliptisch-bogenförmigen Profil, der in Richtung einer radial inneren Seite des Kolbens vorsteht. Das Halblager umfasst einen teilzylindrischen Abschnitt (60) und vorstehende Abschnitte (64) in seiner Umfangsmitte. Jeder vorstehende Abschnitt hat eine Endfläche (642) des vorstehenden Abschnitts, die eine zentrale vertiefte Fläche (642a) und zwei vertiefte Stützabschnitte (642b, 642b) aufweist, die sich an beiden Umfangsseiten befinden und eine Bogenform oder eine elliptische Bogenform haben, die dem Profil des Stegabschnitts entspricht, so dass nur die beiden vertieften Stützflächen in Kontakt mit dem Stegabschnitt sind. A bearing device (1) comprises a piston (5) housed in a cylinder (21) of a rotor (2) and a half-bearing (6) mounted on the piston to support a roller (4). The piston has a recessed retaining surface (54) and lateral retaining surfaces (55) on both axial sides. Each lateral retaining surface includes a land portion (550) with an arcuate or elliptical-arcuate profile projecting toward a radially inner side of the piston. The half bearing comprises a part-cylindrical portion (60) and protruding portions (64) at its circumferential center. Each protruding portion has a protruding portion end surface (642) having a central depressed surface (642a) and two supporting depressed portions (642b, 642b) located on both peripheral sides and having an arc shape or an elliptical arc shape conforming to the profile of the web portion so that only the two recessed support surfaces are in contact with the web portion.

Radial piston machine

High pressure radial piston engine - has floating piston shoes and increased piston bearing area

The radial piston engine has working chambers with fluid actuated pistons. The piston shoes have central support. The piston shoes enter at least partly into the rotor. The pressures in the radial piston engine are increased by increasing the bearing surface area between the piston and piston shoe and the bearing surface area extends over the whole piston cross section, and the machine has a high volumetric capacity. The piston shoe (1) is arranged between the piston guide (33), rotor (9) and end faces (14) and it has a central radial support (8) between radial steps (23) of the rotor (9). The piston shoe has two dimensional play relative to its adjacent components and this freedom of movement is provided by clearances. The piston shoe is able to float between the rotor and piston.

Automotive Torpedo Engine Improvements

Double expansion polycylindrical steam engine

Hypo cycloid motion transmitting device

Hydraulic pumps and motors of the displacement type

Radial piston machine with piston shoes

A radial piston machine has a rotor which turns within the confines of a surrounding annular control face and is provided with substantially radial cylinder bores each accommodating a radially slidable piston having an outer end provided with a piston shoe formed with guide portions projecting circumferentially of the rotor beyond the associated piston and having contact faces which are in sliding engagement with the control face. Each of the contact faces has a hydrostatic bearing constituted by a depression surrounded by a sealing land, and recesses are formed in the respective contact faces outwardly spaced from the sealing lands, so as to separate the latter from outwardly adjacent portions of the contact faces.

Hydraulic transmission

Piston power generating and working machine

A piston machine useful as a power generating machine or a working or pumping machine is disclosed. One or a plurality of double-acting pistons having eccentric piston shafts are guided in cylindrical combustion or working chambers of a machine housing. By means of a driving joint mechanism, the pistons translate along and pivot about their longitudinal axes in oscillatory movements to either drive or be driven by an output shaft.

Sliding shoe mechanism

Patent FR2349058B1

Rotary steam engine

Rotary machine

A machine that converts between reciprocating motion of a piston (21) and rotary motion of a shaft (26). The shaft (26) rotates an integral web (25) that carries a number of lobe wheels (23) spaced evenly about a pitch circle centered on the shaft (26). The lobe wheels (23) are planetary driven by pinions (27) and a fixed ring gear (34). The lobe wheels (23) are somewhat star shaped with radially extending lobes which push followers (32) outwardly, then release them inwardly, as the lobe wheels (23) orbit past and below the follower (32). The follower (32) is connected by a lever (22) and a pair of connecting rods (36 and 37) to the piston (21).

Radial piston machine

Compressed gas engine

Radial piston engine

In the case of a radial piston engine with pistons bearing on the circumference of an eccentric, which pistons perform a swivel movement when the eccentric moves in rotation and engage with a guide element, which, on the radially outward side, bears swivellably, by means of a radially outwardly convex ball race-shaped bearing surface on a concave ball race-shaped bearing surface in the housing or cylinder cover, the bearing, in order to obtain complete piston relief, is designed in such a way that the guide element (2) is provided with an upper end face (8) acted upon by the pressure medium, the hydraulically active plane (de) end face (8) running perpendicular to the longitudinal axis of the guide element (2) of which, lies in the area of the bearing surface (5) on the housing (6), or intersects this, in any swivel position of the piston (3). <IMAGE>

Improvements in or relating to hydraulic pumps and motors

570,252. Hydraulic motors. GLASNER, R. W. July 21, 1943, No. 11854. [Class 69 (ii)] [Also in Group XXVIII] In a reversible hydraulic motor in which radial cylinders 43 rotate about a stationary valve 20, and in which the stroke of the pistons 59 is varied by means of a: ring 68 which is pivot-. ally mounted as at 70 so as to vary its eccentricity, the setting of the ring ,68 is indicated by visible indicating means 92 on the outside of the casing 15. In the form shown, surfaces 88 on opposite sides of the ring 68 engage spring-pressed plungers 86, 87 which operate a pair of pointers 92. The ring 68 may be moved about its pivot 70 by means of a projection 79 which engages a slide 74 reciprocable in a housing 75 either by a handle 77 or by fluid pressure applied selectively to the two ends of the housing. There may be a plurality of side-by-side series of pistons 59 through the heads 60 of which pass pins 62 which project into circular grooves 67 in end plates 65 which support a piston-actuating ring 64 rotatably mounted within the ring 68. By this means the pistons are positively actuated on their outward as well as their inward strokes.

Patent FR2218779A5

"Monobloc" fan, directly controlled by rotary motor

Auto-start device for automobiles

Valve for engines

Radial-piston engine

In the case of a radial piston engine having a cup-shaped piston, resting on the circumference of an eccentric shaft, in which piston there engages in each case a guide body which is supported in a pendular manner radially outwards on the housing, and with fluid channels in the cylinder cover for the inlet and outlet of the pressure fluid, in order to control the operating pistons automatically with a simple and space-saving construction, a control element (15), which is connected in a hinged manner to the guide body (5), for controlling the inlet and outlet channels (19, 20) is guided in an adjustable manner in the cylinder cover (9) or in a suitable component of the housing. <IMAGE>

Combustion engine without connecting rods or crankshaft of the type having cylinders in star configuration

Combustion engine without connecting rods or crankshaft, the cylinders of which are located in star configuration, and the axis of the cylinders being located in a plane perpendicular to the driveshaft including a central cam rotating in one direction, and two lateral cams rotating at the same speed but in the opposite direction. The profile of the central cam (10) is designed so as to allow a decrease in the combustion pressure to be obtained by comparison with that which exists in an engine with a crankshaft, said combustion pressure being kept thus reduced to a lower value for a duration extending from the zone (11) to the zone (14), lying between -10@ and +35@ angle about top dead centre (TDC) of rotation of the driveshaft (value chosen by the constructor of the engine), the piston being displaced as soon as the combustion pressure reaches this value and therefore allowing the volume of the combustion chamber to be increased by a size such that the combustion pressure is maintained at the predetermined level.

Engine

一种内燃发动机(30)，包括：轴(32)；固定至轴(32)的多叶中央凸轮(80)，中央凸轮(80)包括至少三个叶瓣(83)，叶瓣(83)界定中央凸轮表面(84)；至少一个汽缸模块，每个汽缸模块包括：一对汽缸，汽缸关于轴(32)在直径上相对，且中央凸轮(80)插入在汽缸之间；在每个汽缸中的活塞(72)，每个活塞(72)包括用于接合中央凸轮表面(84)的关联的接合工具(135)；以及连接活塞(72)的连接构件(71)，连接构件(71)包括内部间隔(78)，中央凸轮(80)穿过内部间隔(78)延伸；并且其中通过活塞(72)的接合工具(135)与中央凸轮(80)的中央凸轮表面(84)的接合，在使用中在汽缸中的活塞(72)的往复运动赋予轴(32)旋转运动。

High torque low speed motor

A high torque low speed motor has a nutating assembly driven by a hydraulic or an electric actuator. The nutator assembly drivingly connects to an output shaft through a gear train. Because of a difference in the number of teeth between a gear on the output shaft and a gear on the nutating assembly, the output shaft is driven at a differential ratio as the nutator assembly is driven.

Adjustment device on a liquid piston machine.

Hydraulic machine

Radial piston engine.

In the case of a radial piston engine with pistons bearing on the circumference of an eccentric, which pistons perform a swivel movement when the eccentric moves in rotation and engage with a guide element, which, on the radially outward side, bears swivellably, by means of a radially outwardly convex ball race-shaped bearing surface on a concave ball race-shaped bearing surface in the housing or cylinder cover, the bearing, in order to obtain complete piston relief, is designed in such a way that the guide element (2) is provided with an upper end face (8) acted upon by the pressure medium, the hydraulically active plane (de) end face (8) running perpendicular to the longitudinal axis of the guide element (2) of which, lies in the area of the bearing surface (5) on the housing (6), or intersects this, in any swivel position of the piston (3). <IMAGE>

Mechanism for transforming a rectilinear movement into a rotary movement, and vice versa

Slider crank system series

Steam-engine or the like.

SPHERICAL JOINT FOR THE CONNECTION OF THE PISTON SHOE IN A MACHINE WITH RADIAL PISTONS AND PROCEDURE FOR ITS MANUFACTURE

Radial piston type hydraulic pump or motor

A radial piston type hydraulic pump or motor comprising one or a plurality of piston cylinder mechanisms arranged radially of a rotatable shaft thereof, and a casing surrounding said pistoncylinder mechanisms and having a waved inner cam surface for cooperation with the outer end of each piston, means being provided to direct a pressurized hydraulic oil between the cylinder wall and the piston at the portion where the piston and the cylinder wall is brought into contact due to the side thrust reaction force acting on the piston so as to counteract said reaction force.

Fluid-operated radial piston devices

A fluid-operated radial piston machine has two rotors rotating at the same angular velocity, with a working rotor being formed with substantially radial working chambers having working fluid flowing therethrough and having pistons reciprocable in the working chambers. The other rotor is a bearing rotor. Connections members are interposed between the pistons and the bearings rotor and are pivotally seated in the bearing rotor as well as in the respective pistons. The bearing rotor has axially extending incompletely circular grooves receiving cylindrical heads on the connection members, and the inner ends of the connection members are formed with cylindrical or spherical bearing surfaces seating in the pistons. Fluid pressure chambers are formed on the various bearing surfaces to receive fluid under pressure to reduce friction.

Eccentric machine

Patent FR2033554A5

Fluid power apparatus

Magnet piston retention for free wheeling

A fixed displacement fluid motor or pump of the ball or roller piston type in which a plurality of axially or radially extending reciprocating pistons co-act with a cam track to produce output motion or to generate pressure fluid output, respectively. Permanent magnets are secured either to the pistons or in or adjacent the cylinders for holding the pistons in fixed retracted positions beyond one end of the normal stroke of the pistons under certain conditions of relatively low fluid operating pressure in the cylinders which occur in modes of operation during which no motor or pump output is desired.

Valve control apparatus for rotary engines

Valve control apparatus adapted for use in a rotary engine or pump having a cylinder block rotatable about an axis and including a plurality of cylinders and corresponding pistons radially arranged about the axis, a plurality of valves each disposed in a different one of the cylinders, and a plurality of tappet mechanisms each of which when actuated operates to alternately open and close a different one of the valves. The valve control apparatus includes a cam ring having first and second generally circular cam tracks defined therein for contacting and actuating certain ones of the tappet mechanisms. The cam tracks are disposed in substantially parallel planes and each includes a pair of lobes positioned diametrically opposite in the cam ring. The cam ring is adapted to rotate about the axis in the same direction as the cylinder block but at a speed different therefrom to provide for coaction between the cam tracks and the various tappet mechanisms. With this configuration, the valves for six radially arranged cylinders can be controlled to alternately open and close with each rotation of the cylinder block.

Rotary radial piston machine

RADIAL PISTON ENGINE

ROTERANDE MASKIN

SLIDER FOR PISTON MACHINES

Improvements to motors and pressurized fluid pumps

Fluid engine

Hydraulic radial piston machine

Mechanical system constituting a meter, pump or motor

Pump or motor with four cylinders arranged in one plane

ARRANGEMENT OF A PISTON SHOE AND ITS SECURITY IN AGGREGATES THROUGH FLUID

Hydraulic fluid mechanism

An Improved Method of Converting a Single Stage Compressor, into a Fluid Pressure Engine, and vice versa.

26,116. Gibbs, H. Nov. 14. Beat valves; cam gears. - In an intereonvertible multi-cylinder air-compressor and compressed air motor, each cylinder is connected to a reservoir through a passage controlled by a spring-pressed ball valve 15 and communicates with the atmosphere by terminal ports 28 and by a passage controlled by two poppet-valves 19, 22. The latter is in the form of a tube surrounding the valve stem and normally held against a squared shoulder by an adjustable spring 25. The valve 19 is held on its seat by a spring 21 and carries projections 26 on its upper surface, which coact with the ball valve. and the valve stem under the valve 19 is fluted. The poppet valves are worked from a cam 7 on the crank-shaft 6 through tappet levers 8 pivoted on a plate adjustable angularly on the crank-shaft. In one position of the plate, the machine acts as a compressor. For the machine to act as a motor to start the main engine of a vehicle, the plate is moved to another position so that the poppet valves are moved sufficiently to unseat the ball valve and admit compressed air in succession to the cylinders. During this admission, the valves 22 close the passages to atmosphere and on the exhaust strokes both poppet valves may be held in such a position as to allow exhaust to pass by the fluted parts of the stem. The ports 28 act as terminal exhaust ports. Intermediate positions of the plate enable variations in the working to be effected. The valve 22 has adjustable packing 23.

Liquid piston machine.

Radial piston hydraulic pump or motor with low loss reaction linkage

A radial piston hydraulic pump or motor characterized by a new linkage assembly interposed between the pistons and the reaction assembly. The linkage assembly, in addition to transmitting forces between the pistons and the reaction assembly, also stabilizes the pistons relative to the cylinders. The linkage assembly is characterized particularly by the incorporation of a parallel pair of Scott-Russell linkages, some portion of the parallel pair being guided for linear reciprocal movement by reason of the parallel nature of the links.

Improvements to pressure intensifiers

Patent GB1234215A

1,234,215. Cams. SIMMS GROUP RESEARCH & DEVELOPMENT Ltd. 14 Nov., 1968 [15 Nov., 1967], No. 51990/67. Heading F2K. A cam roller for a fuel injection pump comprises a fixed pin 17 and bush 12 carrying the rotatable tappet roller 11, radial bores 13, 14 in the outer member 11 communicating with hemispherical depressions 15, 16 in the inner member 12 for the passage of lubricating oil to the interface between the members 11, 12. In a modification, Fig. 2 (not shown), the pin 17 is provided with an axial passage and radial passages connected to similar radial passages in the inner cylindrical member.

Patent FR2389806A1

Dispositif de transformation de mouvements. Ce dispositif comporte un arbre principal auquel sont reliés dynamiquement un ou plusieurs excentriques primaires dont les axes de rotation ou de symétrie s'étendent parallèlement et à une certaine distance par rapport à l'axe de l'arbre principal, le ou les excentriques primaires portant par l'intermédiaire d'un coussinet un tube qui supporte dynamiquement un ou plusieurs excentriques secondaires dont le ou les axes de rotation s'étendent parallèlement à l'axe de l'arbre principal. Moteurs à combustion interne, machines à gaz comprimé ou à vapeur et pompes. Device for transforming movements. This device comprises a main shaft to which are dynamically connected one or more primary eccentrics whose axes of rotation or symmetry extend parallel and at a certain distance from the axis of the main shaft, the primary eccentric (s) bearing by means of a bearing, a tube which dynamically supports one or more secondary eccentrics whose axis or axes of rotation extend parallel to the axis of the main shaft. Internal combustion engines, compressed gas or steam machines and pumps.

Hydraulic pump or motor

1,030,991. Reciprocating pumps and motors. STEWART-WARNER CORPORATION. Jan. 11, 1963 [Jan. 11, 1962], No. 1468/63. Heading F1A. In an hydraulic pump or motor unit the drive shaft of the hydraulic unit has a cage 24 secured thereto and shoe surfaces 29 on the cage cooperate with the pistons 54 which are spring loaded. The cylinder member 46 rotates about a crank 42 on a pintle element 36 which is mounted eccentrically of the shaft 18 in the pump housing. The pintle contains axial bores 64, 66 (Fig. 2, not shown) respectively terminating in ports which communicate with openings 51 in the cylinder member. Axially spaced from the ports are part circumferential grooves which communicate with one of the opposite axial bores (Fig. 5, not shown). A restriction is provided in each communicating passage and the pressure distribution in the clearance between the eccentric 42 and member 46 substantially counteracts the radial thrust due to the pressure in the cylinders 50. The piston stroke is varied by rotating the pintle 36 and this rotation also varies the timing of the admission and exhaust. The drive shaft 18 is journalled in bearings 19, 20, the latter bearing being supported in a rim 82 joined to a hub 80 by flexible spokes 81 (Fig. 7, not shown). Lubricant is supplied under pressure through a flexible pipe 95 into two manifolds which communicate with radial bores in the hub, each having a restrictor. This bearing compensates for both axial and radial misalignment caused through the unit operating pressures.

Expansible chamber type radial piston engine

ROTARY MOTOR

Rotary engine.

Radial-piston hydraulic motor

Hydraulic motor, pump, and the like

HYDRAULIC ROTATING MACHINE

Radial piston machine

Patent FR2121116A5

Control means for double-bank radial piston hydraulic pumps and motors

1,027,500. Reciprocating pumps and motors. INDUSTRIEWERKE KARL-MARXSTADT. VEB. Dec. 27, 1963, No. 51075/63. Heading F1A. In a double bank radial cylinder pump or motor, the piston stroke is varied by pivoting rings 5, 6, in opposite directions (Fig. 1, not shown). Hydraulic fluid acts on a plunger 2, the movement of which is opposed by a spring loaded plunger 3 via push rods 9, 10 and a rocker 11. Movement is transmitted to the rings 5, 6 via extensions 7, 8, thereon.

Radial piston machine