Abstract: A locking mechanism, which permits fixation to a piston rod of a linear actuator relatively to a cylinder of the actuator, as well as a linear actuator equipped with such a locking mechanism as well as to an aircraft with at least one linear activator that is equipped with the locking mechanism. The locking mechanism includes a plurality of first positive locking elements which are arranged lengthwise with the outside circumference of the cylinder and in certain distances to one another and at least one second positive locking element, which is moved together with the piston rod upon activation of the linear actuator and thus passes a segment of the cylinder. The at least one second positive locking element is positively engageable with one of the plurality of first locking elements at discrete positions of the cylinder lengthwise, by which the piston rod is fixed relatively to the cylinder.

Abstract: Fuel pump for common rail engine comprises a plunger reciprocal within a bore to pressurize fuel within a chamber. A drive fir the plunger is co-operable with a cam rider so as to impart axial drive to the plunger while permitting lateral sliding movement of the cam rider. A plunger cycle includes a forward stroke, during which fuel within the chamber is pressurized, and a return stroke, during which the pump chamber fills with fuel at low pressure. The pump comprises a load-reducing arrangement for reducing the load on the drive due to fuel pressure within the chamber during that period of the forward stroke for which the relative velocity of sliding movement between the drive and the cam rider is at a minimum, thereby to reduce wear of the drive.

Abstract: The present invention provides a fuel supply pump which is suitably used in a booster-type accumulator fuel injection device and a tappet structural body which is suitable for the fuel supply pump. For this end, in a tappet structural body which includes a roller and a tappet body portion which houses a roller therein and a fuel supply pump provided with the tappet structural body, the roller is rotatably held on a roller receiver of the tappet body portion and the tappet structural body includes a plate-like or a wire-like restricting means which restricts the movement of the roller in the rotary axis direction.

Abstract: A high-pressure pump has at least one pump element including a pump piston defining a work chamber and driven at least indirectly by a drive shaft in a reciprocating motion, counter to the force of a restoring spring. The pump piston is braced on the drive shaft at least indirectly via a sleevelike tappet, and the restoring spring engages at least the pump piston. A support element in the tappet braces the pump piston toward the drive shaft and is braced at least indirectly on the drive shaft. The restoring spring, via a spring plate, engages the pump piston and the tappet. The spring plate is elastically deformable in the direction of motion of the pump piston in such a way that as a result of its elastic deformation, deviations in the position of its contact faces on the pump piston and on the tappet are compensated for.

Abstract: The invention relates to the surfaces of the polygon (2) and/or the plunger foot plate (3) of a high-pressure pump for a diesel motor, at least one of the surfaces having cavities at least in the contact area between the polygon (2) and the plunger foot plate (3). According to the invention the face of the plunger foot plate (3) lying opposite the polygon (2) is concave, at least in the load-free state and the cavities have a depth of between 5 and 50 ?m, a width of between 30 and 100 ?m and a length of at least 100 ?m, or a diameter ranging between 30 and 100 ?m. The edges of the cavities are rounded. The invention also relates to a method for producing said surfaces, according to which the cavities are first created in the surface by means of chemical etching, blasting using blasting agents or by means of a laser removal process, the surface is subsequently polished in a vibratory grinding process and the edges of the cavities are rounded.

Abstract: Under one aspect of the present invention, a liquefied gas pump assembly is coupleable to a source of liquefied gas. A cooling assembly is positioned generally adjacent to a pump module. The cooling assembly has a converging pump-head-receiving aperture, a fluid inlet line and a fluid outlet line in fluid communication with the source of liquefied gas and in fluid communication with the pump-head-receiving aperture. A pump head assembly is removably retained in the pump-head-receiving aperture so that a portion of the cooling assembly is between the pump head assembly and the pump module. The pump head assembly has a converging shape and being sized to engage the cooling assembly in a wedged configuration when the pump assembly is in an installed position in the cooling assembly. The pump head assembly has a fluid inlet pathway abutting in sealable engagement with the fluid inlet line of the cooling assembly.

Abstract: A high-pressure fuel pump of a simple construction is capable of distributing the position of contact between a tappet and a cam so as to improve durability of the tappet without causing seizure of a piston. A cylinder is arranged in a housing, and the piston is received in the cylinder for sliding reciprocation so that fuel is sucked into the cylinder and pressurized by the piston. The tappet is arranged inside one end of the housing for reciprocation, and contacts the cam, which rotates with a camshaft of an engine, so as transmit a driving force of the engine to the piston. A sleeve is arranged between the tappet and the housing, and clearance fitted to an outer peripheral surface of the tappet and an inner peripheral surface of the housing. The tappet is caused to rotate on its own axis by a frictional force generated between the cam and the tappet.

Abstract: In a piston pump for providing high-pressure fuel in a common-rail fuel injection system including a camshaft (2), which is mounted rotatably in a pump housing (1) and which has at least one eccentric cam 93) for operating a pump piston (4, 14) in an approximately radial direction with respect to the camshaft (2), in order to reduce the wear of the piston pump, a piston-rod element (6, 16, 26, 36, 46) is arranged between each pump piston (4, 14) and the eccentric cam (3) so as to transmit the stroke movement (5) and the force from the eccentric cam of the camshaft (2) to the pump piston (4, 14) by a rolling movement.

Abstract: An actuating device for a transmission of a motor vehicle has a housing and two pistons moveably arranged in the housing. A coupling part is arranged between the two pistons and is acted on by the two pistons so as to be moved by the two pistons. The coupling part is connected to a shifting part of the transmission and is made, at least on a surface of the coupling part, of wear-resistant material. The two pistons are loosely seated on the coupling part so that these parts can align themselves properly relative to one another after mounting.

Abstract: A slide-type cylinder coupling which is suitable for the quick connect/disconnect attachment of a lift piston on a pedestal lift cylinder to a lift pedestal on a load cup or HCLU station of a chemical mechanical polishing apparatus. The cylinder coupling includes a coupling bolt which is provided on the lift piston and a coupling bracket which is provided on the bottom surface of the lift pedestal. The coupling bolt is slidably inserted in the coupling bracket to removably connect the lift cylinder to the lift pedestal. The coupling bolt is slidably removed from the coupling bracket to disconnect the lift cylinder from the lift pedestal for replacement or maintenance of the lift cylinder.

Abstract: A fuel pump for an internal combustion engine, comprising a housing (14) in which a piston (16) is guided. A working chamber is confined in areas by the piston (16). An eccentric shaft or camshaft acts on the piston (16) on its end furthest from the working chamber. A prestressing element (30) loads the piston (16) against the eccentric shaft or camshaft. In order to reduce the fabrication costs of the fuel pump, the invention provides that a support member (40) that is separate from the piston (16) is provided, which said support member is interconnected with the end region (36) of the piston (16) closest to the eccentric shaft or camshaft, and against which the prestressing element (30) bears.

Abstract: A ball-joint connection for a braking system comprising a male element (2) and a female element (4). A first end (14) of the male element (2) includes pegs (30,30?) that are automatically radially extracted when the first end (14) is mounted in a female element (4) defined by a housing (16). The pegs (30,30?) collaborate with the interior surface (18) of the housing (16,66) to define a ball-joint connection between the male element (2) and the female element (4). The female element (4) being formed on one end of a piston (66) of for a master cylinder and the male element (2) forms the actuating rod of the master cylinder.

Abstract: In a fuel injection pump, a tappet is provided on an end thereof on a side of a cam ring with a hollow. Force acting on the tappet from a plunger due to fuel pressure is dispersed to a sliding contact surface outside the hollow so that contact face pressure between the tappet and the cam ring is smaller. As the fuel pressure becomes higher, larger resilient deformation of the tappet causes a diameter of the hollow smaller so that the tappet comes in flat slidable contact with the cam ring, resulting in preventing the contact portion between the tappet and the cam ring from being seized with frictional heat.

Abstract: The object of the present invention is to provide a high-pressure fuel supply apparatus, in which the durability of the fuel sealing section is improved and additionally the evaluation time is reduced. The high-pressure fuel supply apparatus comprises a piston having a plunger supported slidably within a cylinder and a tappet, a casing for preventing the fuel leaking out of the space between the cylinder and the piston from leaking outside by surrounding substantially the cylinder and the piston, and a sealing means for sealing the space between the casing and the piston, wherein the sealing means is fastened to the casing and brought into a slidable contact with the tappet of the piston.

Abstract: A device (1) for actuating at least one piston (2) moving axially in the bore (3) of a body (4), the piston (2) being driven by the longitudinal or curved movement (F2) of a control arm (5). Also disclosed is a method for detecting a failure in a device (1) having an intermediary element (6), located between the piston (2) and the control arm (5), this intermediary element (6) being also used as an alarm means should the intermediary element (6) be missing between the piston (2) and the arm (5). The invention is particularly applicable in the field of diagnosis.

Abstract: A brake booster having an input element (20) for actuating the brake booster is described. The input element (20) at its end facing a brake pedal has a receiving sleeve (20A) for an actuating rod (34), which is to be coupled to the brake pedal. Disposed inside the receiving sleeve (20A) is a spring sleeve (36) comprising at least one spring element (36C, 36D), which cooperates with the actuating rod (34) when the latter is brought into a detent position in relation to the input element (20). The spring element (36C, 36D) extends substantially in axial direction and is actuable in a spring-elastic manner in a radially outward direction. The spring sleeve (36) at its brake pedal-side end has a radially outwardly extending portion (36F), which is fastened by means of a bead (20D) of the receiving sleeve (20A) to the receiving sleeve (20A).

Abstract: A tappet turning prevention structure for a fuel supply apparatus includes a piston defining a fuel pressurizing chamber within the housing. A tappet disposed at one end of the piston has accommodated in it a roller driven by a cam of an engine and a roller supporting pin for transmitting a force from the cam to the piston. The tappet is housed by a bracket which has one or two grooves in an inner surface of it for supporting the roller supporting pin at one or both ends. The number of parts can be decreased because the turning prevention pin for the tappet and the roller supporting pin is a single common pin, and therefore the need of controlling of the press-fit loads is eliminated because no process for thrusting the tappet turning prevention pin into the outer circumference of the tappet is involved.

Abstract: A connecting element (1) connects a piston (2) with a restoring element (6) for a radial piston pump. The piston (2) is displaceably mounted in a cylinder (4) and can be restored from an upper dead-centre position by means of the restoring element (6). The connecting element (1) is connected to the piston (2) in a positive fit.

Abstract: An extended male slipper servo pad provides an improved connection between the swashplate and a positioning mechanism in a variable displacement hydraulic unit. The swashplate assembly includes a swashplate having a socket formed therein and a male slipper servo pad pivotally attached to the swashplate at the socket. The male slipper servo pad has a ball end secured in the socket and a pad end having a substantially flat planar surface thereon directed away from the ball end.

Abstract: A fluid actuator attaches a hinged safety device to a vehicle and pivots the hinged safety device between retracted and extended positions. The housing of the actuator has a base and a removable cover. A sub-assembly is attached to the base. The subassembly includes a generally planar base member with integral right cylinder, lever arm pivot support and stop posts. A piston slides in the right cylinder and forms a fluid chamber between the piston and a closed end of the right cylinder that is fed through a passage through the closed end of the cylinder. A lever arm is pivotally attached to the lever arm pivot support at one end for pivotal movement between retracted and extended positions, the lever arm extending over the cylinder and having a lip at an opposite end that is spaced from the right cylinder. A pivot arm engages the top of the piston at one end and the lever arm at an opposite end to transfer motion from the piston to the lever arm.

Abstract: The invention relates to a roller bearing, in particular a needle bearing (38). The invention proposes embodying a bearing ring (42) of the needle bearing (38) with a lateral extension (46) with which the needle bearing (38) can be pressed into a bearing seat (48). This has the advantage that a compression of the bearing ring (42) by the bearing seat (48) takes place outside the region of the needles (40) of the needle bearing (38) and consequently, the compression of the bearing seat (48) does not influence a bearing play of the needle bearing (38). The needle bearing (38) is particularly provided for supporting a shaft (24) of a piston pump (16) of a pump unit (10), which shaft supports a cam (26).

Abstract: A radial piston pump in which the sliding shoe has a central region that engages the driven end of the piston and an outer region or rim surrounding the driven end of the piston and projecting into the pumping chamber bore a distance such that for all positions of the piston relative to the drive member, at least a portion of the outer region of the shoe remains within the pumping chamber bore. In another aspect, the invention is directed to a sliding shoe for a radial piston pump, wherein the shoe has a concave bottom side, a socket portion projecting centrally on the top side, and a plurality of guide arms projecting upwardly on the top side and spaced laterally from the socket portion. Preferably, the projecting rim is in the form of guide arms that are spaced apart to form a castellated, substantially annular rim around the socket portion.

Abstract: The invention refers to a piston assembly for a radial piston hydraulic motor. The essence of the solution lies in that a longitudinal axis (12) of a roller (11) substantially coincides with an axis through centre of gravity of a piston body (2). The roller is placed in a bed (10) of a bearing bush (6) which is located inside the piston (1) in a manner that the edges thereof slip through grooves (14) in the lower inner portion of the piston (1). The roller (1) being inserted this way is afterwards rotated in a certain angle, together with the bearing bush (6), thus, preventing the roller (11) from falling out of the piston (1).

Abstract: The invention relates to an axial piston engine (1) comprising a housing (2) and a cylinder drum (5) that is pivotably arranged in one interior space (3) of the housing. Several cylinder bores (6) are embodied in said cylinder drum (5). Pistons (7) are moveably guided in said cylinder bores (6) and rest on a swash plate (11) by means of guide shoes (8). The axial piston engine (1) also comprises a retracting device (15). The guide shoes (8) rest on the retracting device (15) when the pistons (7) are retracted. A restraint system (16) is accommodated in the housing (2), can be moved against a spring (40) and is used for supporting the retracting device (15) at the housing (2). The aim of the invention is to improve and stabilise the support of the retracting device (15). To this end, the retracting device (15) is supported by a support device (16a) which is situated behind the retracting device (15) at the side facing away from the swash plate (11). The support device is connected to the swash plate (11).

Abstract: An actuator assembly comprising at least one prime mover, a shaft having a first end and a second end, the shaft being operatively connected to the prime mover for reciprocal movement, a frame, the shaft being reciprocably movable in the frame, and linkage attached to the frame and operatively connected to the shaft, the linkage being movable between a first position and a second position in response to reciprocal movement of the shaft and a selectively engageable stroke-limiting assembly operatively connected to the shaft for controlling movement of the shaft, either by preventing any movement of the shaft or limiting its stroke a predetermined amount.

Abstract: The present invention relates to a piston for a hydraulic pressure chamber, especially a piston bore of a spot-type disc brake, wherein the piston is configured as a bowl-shaped hollow cylinder that is open on one side and made from a metal blank of a constant wall thickness in a forming operation. The piston has a bottom to which hydraulic pressure is applicable and a piston wall which, at its open end, passes over into a rim that has a circular abutment surface. Especially in view of conventional cast pistons, an object of the present invention is related to providing a piston which permits being manufactured by means of a simple forming operation, which can be configured as light as possible and with low expenditure in material, without limiting the stress capacity of the piston.

Abstract: The reliability of a compressor may be improved by affixing an inertia-increasing member to the drive shaft of the compressor in order to reduce the forces imposed on a mechanical coupling between the drive shaft and a compression member when the rotation of the drive shaft is initiated. A method of selecting the size and configuration of the inertia-increasing member is also provided.

Abstract: In a fuel injection pump, axial ends of first and second plungers driven by a drive shaft via a cam and a cam ring are in slidable contact with first and second sliding surfaces of the cam ring. The first and second sliding surfaces are positioned on opposite sides of the drive shaft and non-parallel. When the first plunger is in compression stroke, a wedge shaped gap whose angle is &agr; is formed between the axial end of the second plunger and the second sliding surface. Accordingly, when the second plunger is in the compression stroke, sliding contact portions of the axial end of the second plunger and the second sliding surface are well lubricated by fuel entered the gap, resulting in preventing frictional seizure thereof.

Abstract: The pump of the present invention preferably includes a housing having an inlet port, an outlet port and a chamber located in fluid communication with the inlet port and the outlet port. A diaphragm is sealingly secured in the chamber and, together with the housing, define a fluid passageway from the inlet port to the outlet port. An electromagnetic assembly or other driving device is preferably secured to the housing and is positioned to move the diaphragm in order to pump fluid through the pump. In some preferred embodiments, the electromagnetic assembly includes a plunger positioned and adapted to move the diaphragm against the biasing force of a spring. Improved diaphragms and diaphragm features are also disclosed, including a two-part diaphragm structure, diaphragm sealing portions for sealing the fluid chamber from driving and biasing assemblies of the pump, and inherently biased diaphragms.

Abstract: A fuel injection pump has a drive shaft. A cam rotates together with the drive shaft. A plurality of plungers, slidably supported by a pump housing and driven by the cam, reciprocate in accordance with rotation of the cam to pressurize the fuel introduced in a fuel pressurizing chamber. The pressurized fuel is fed to an accumulator via a fuel feed passage formed in the pump housing. A pipe joint portion is integrally formed with the pump housing and is directly connected to a piping member of the accumulator.

Abstract: The sliding ring (1) for a radial piston pump has an inner ring (2) and a coaxial outer ring (3) between which a spring/damping element (5) is arranged. The spring/damping element (5) is in one piece and comprises on both sides an annular rim bead (8). The rim beads rest at the side rim of the inner ring (2) against the latter's outer circumference and at the rim of the outer ring (3) against the latter's inner circumference. Provided between the rim beads (8) is a connecting structure (9) that is constituted, for example, by at least one further damping ring (10) that is connected via webs (11) to the rim beads (8). By way of a corresponding configuration of the spring/damping element (5), chambers (32) into which a liquid can be introduced can additionally be formed between the inner ring (2) and outer ring (3) so that the stiffness of the sliding ring (1) can be variably configured.

Abstract: An apparatus for converting between reciprocal piston motion and rotary shaft motion. A unique H-shaped piston rod configuration and corresponding cylinder assembly for improving the efficiency of internal and external combustion engines. A Stirling engine having improved efficiency due to the use of heat exchangers that are integral with the cylinder assemblies. A Stirling engine employing a novel apparatus for rapidly varying power output.

Abstract: The invention relates to a displacement machine, in particular a displacement pump used in an automobile and having two components movable slidably relative to one another. In order to keep the wear on the components low, even in the case of a poorly lubricating operating medium, there is provision for at least one component of the two components to be hardened at least on the surface and to consist of sintered material which contains predominantly ferrite and a constituent for improving the sliding properties. This design is particularly advantageous in automobile pumps operating with transmission oil or feeding fuel.

Abstract: In a swash plate type compressor comprising a piston 4 slidably received in a cylinder bore disposed parallel with the driving shaft and a swash plate 2 obliquely attached to the driving shaft and engaged by the piston 4 through a bearing device, the bearing device comprises a spherical seat 4b composed of a single concave surface formed in the piston 4, and a substantially hemispherical shoe 10 contacting the spherical seat 4b, the outer peripheral surface of the shoe 10 being composed of a skirt portion 12, a top portion 16 having a larger radius of curvature, R2, than that R of the spherical seat 4b, and a transition portion 14 contacting the spherical seat 4b between the skirt portion 12 and the top portion 16 and having a smaller radius of curvature, R3, than that R of the spherical seat 4b.

Abstract: A fluid actuator attaches a hinged safety device to a vehicle and pivots the hinged safety device between retracted and extended positions. The housing of the actuator has a base and a removable cover. A sub-assembly is attached to the base. The subassembly includes a generally planar base member with integral right cylinder, lever arm pivot support and stop posts. A piston slides in the right cylinder and forms a fluid chamber between the piston and a closed end of the right cylinder that is fed through a passage through the closed end of the cylinder. A lever arm is pivotally attached to the lever arm pivot support at one end for pivotal movement between retracted and extended positions, the lever arm extending over the cylinder and having a lip at an opposite end that is spaced from the right cylinder. A pivot arm engages the top of the piston at one end and the lever arm at an opposite end to transfer motion from the piston to the lever arm.

Abstract: A fuel injection pump is provided which stops fuel discharge when a movable member for pressurizing the fuel is lifted beyond top dead center, thereby leaving a cam ring. The pump prevents the movable member from colliding with the cam ring and damaging the members of the pump. The movable member has a plunger. An outer diameter d of one portion of the plunger has a diameter smaller than an inner diameter D2 of an inner fitting surface of a cylinder in which the plunger is positioned. An outer diameter D1 of a different portion of the plunger is somewhat larger than the inner diameter D2 of the inner fitting surface of the cylinder. When a drive shaft overruns, the speed of an orbital movement of the cam. ring and a speed of reciprocating movements of the movable member increases. This causes an inertial force of the movable member in the lifting direction thereof to exceed an urging force of a spring. As such, the plunger is sometimes lifted beyond a top dead center.

Abstract: The invention proposes a hydraulic device of the kind including a cylinder in which a piston is mounted for sliding in leaktight fashion in the body of the cylinder so as to delimit at least one hydraulic chamber intended to be linked to a hydraulic circuit, and is linked to the front extremity of an actuating rod which projects axially rearwardly outside the cylinder body and on which an actuating force can be applied in order to cause forward displacement of the piston counter to a return force applied to the piston. The device includes a temporary end stop which limits the forward displacement of the piston and which intervenes until the piston is first actuated by means of the actuating rod. The invention is applicable to a hydraulic cylinder for the control of motor-vehicle equipment.

Abstract: The pump of the present invention preferably includes a housing having an inlet port, an outlet port and a chamber located in fluid communication with the inlet port and the outlet port. A diaphragm is sealingly secured in the chamber and, together with the housing, define a fluid passageway from the inlet port to the outlet port. An electromagnetic assembly or other driving device is preferably secured to the housing and is positioned to move the diaphragm in order to pump fluid through the pump. In some preferred embodiments, the electromagnetic assembly includes a plunger positioned and adapted to move the diaphragm against the biasing force of a spring. Improved diaphragms and diaphragm features are also disclosed, including a two-part diaphragm structure, diaphragm sealing portions for sealing the fluid chamber from driving and biasing assemblies of the pump, and inherently biased diaphragms.

Abstract: Composite wear component produced by casting and consisting of a metal matrix whose working face or faces include inserts which have a very high wear resistance, characterized in that the inserts consist of a ceramic pad, this ceramic pad consisting of a homogeneous solid solution of 20 to 80% of A12O3 and 80 to 20% of ZrO2, the percentages being expressed by weights of the constituents, and the pad then being impregnated with a liquid metal during the casting.

Abstract: A fuel pump comprising a first pumping plunger reciprocable within a first bore and defining, with the first bore, a first pumping chamber. A second pumping plunger is reciprocable within a second bore and defines, with the second bore, a second pumping chamber. The fuel pump further comprises a supply passage, whereby fuel from the first pumping chamber is supplied to the second pumping chamber. A drive arrangement is provided for driving the first and second pumping plungers in both an extending direction and a retracting direction such that when the drive arrangement drives the first pumping plunger in its retracting direction, the second pumping plunger is driven in its extending direction to expel fuel from the second pumping chamber, and when the drive arrangement drives the first pumping plunger in its extending direction, the second pumping plunger is driven in its retracting direction and fuel is expelled from the first pumping chamber through the supply passage to the second pumping chamber.

Abstract: A side strut (5) for a lower steering arm of a tractor has a single-action hydraulic cylinder with a cylinder housing (9) and a piston (16). The piston includes a hollow cylinder (17) with a base (18). In the hollow cylinder (17), a rod-shaped element (20) is adjustable against the force of a spring from a moved-in position into a moved-out position. Because the piston (16) and the setting element (20) move in the same direction, it is possible to achieve a telescopic design which leads to a short installation length which, in turn, results in a more advantageous buckling strength.

Abstract: A pressurized air supplying device is coupled to the DC electric power of the vehicle for supplying a pressurized air to a massage device of the vehicle. The pressurizing device includes two membranes secured to two sides of a housing and each having a peripheral portion secured to the housing with a casing. A follower is secured between the membranes. A motor is secured to the housing and has an eccentric axle slidably engaged through the follower to actuate the follower and the membranes to pressurize the air and to generate a pressurized air to the massage device.

Abstract: A hydraulic pump includes a case having a plurality of fluid paths and a cylinder-shaped groove with a shaft-bearing hole. A shaft is inserted into the shaft-bearing hole of the groove such that the shaft is rotated. A cylinder block is disposed in the groove of the case with a plurality of cylinders such that the cylinder block is rotated upon receipt of a rotational power of the shaft. The cylinder block has a barrel-shaped bottom portion surrounding the shaft. A piston is inserted into each of the cylinders such that the piston reciprocates. A swash plate is combined with the case such that the swash plate covers an opening portion of the groove. The swash plate has an inclined side facing the cylinder block. A shoe has a top side, a bottom side and a stepped middle portion. The top side of the shoe is connected to the piston via a connecting member. The bottom side of the shoe contacts the inclined side of the swash plate.

Abstract: A radial piston pump for generating high fuel pressure in fuel injection systems of internal combustion engines, having a drive shaft which is supported in a pump housing. The drive shaft is embodied eccentrically or has camlike protrusions in the circumferential direction. A plurality of pistons are disposed radially with respect to the drive shaft in a respective cylinder chamber. A plate is mounted on the ends of each piston toward the drive shaft, and the pistons are movable back and forth radially in the respective cylinder chamber by rotation of the drive shaft. Wear problems are solved by providing that the plate is pivotably connected to the associated piston. By the deflection of the plate on the piston, the load on the piston from moments of the bracing force is lessened.

Abstract: A power enhancing unit (50) is disposed between a linear power unit (12) and an industrial tool (10) that is operated by the power unit. The power enhancing unit (50) includes an input member (160) coupled to a power ram (26)of the power unit and upon application of a primary force from the power ram undergoes movement from a first position (232) to a second position (242). An output member (106) is coupled to the tool ram (94) and a power enhancing mechanism (166) is coupled to both the input member (160) and the output member (106) and arranged so that upon movement of the input member the output member undergoes movement and exerts a secondary force on the tool ram (94) that is greater than the primary force for a portion of the movement of the output member.

Abstract: A compressor includes a piston and a shoe, which contact and slide on one another. The piston includes a sliding surface, on which a solid lubricant film is formed. The shoe includes a sliding surface that slides on the first sliding surface. A soft film that mainly contains soft metal is formed on the second sliding surface. The solid lubricant that forms the solid lubricant film is a solid lubricant other than a soft metal.

Abstract: The object of the present invention is to offer methods for forming a film of a high quality on a swash plate for a swash plate type compressor simply and the film formed swash plate.

Abstract: A high-pressure apparatus with driving device (10) and pressure generating device (30) has a frame configuration (20) through which the driving device and the pressure generating device are connected but detachable (FIG. 1A).

Abstract: In a swash plate type compressor in which a shoe (3) is interposed between a swash plate (5) and a reciprocally movable piston (2), a concave curved surface (21a) is made at an end of the piston to have an elliptical portion with an elliptical shape in cross section. The shoe has a convex spherical surface inserted into the concave curved surface and reciprocally moves the piston in accordance with a rotation of the swash plate.

Abstract: Composite wear component produced by casting and consisting of a metal matrix whose working face or faces includes inserts which have a very high wear resistance, characterized in that the inserts consist of a ceramic pad, this ceramic pad consisting of a homogeneous solid solution of 20 to 80% of Al2O3 and 80 to 20% of ZrO2, the percentages being expressed by weights of the constituents, and the pad then being impregnated with a liquid metal during the casting.