Abstract: Translation/rotation conversion apparatus includes a rotatable follower shaft having an oval follower slant mounted thereon at an oblique angle with respect thereto. A rotatable drive shaft is disposed parallel to the follower shaft and has an oval drive slant mounted on it at the same oblique angle with respect to it that the follower slant makes with respect to the follower shaft. Planar faces of the two slants are engaged together in flat overlapping relationship. At least one shaft, preferably the drive shaft, is free to translate back and forth as it rotates.

Abstract: An axial piston machine has a housing with a cover, a swash plate located within the housing and an elongated rotary shaft extending through the swash plate and the housing with an end in the housing cover. A cylindrical drum is connected to the shaft for rotation therewith and one end of the cylindrical drum abuts against a surface of a control member located in the housing adjacent to the housing cover. A number of concentrically arranged cylindrical passages are formed in the cylindrical drum and a longitudinally moveable hollow piston is located in each cylindrical passage. A slide shoe is located at one end of each piston and each slide shoe is in working connection with the swash plate. Each slide shoe has a slide shoe plate, a slide shoe neck and a slide shoe head connected to one of the pistons. The face of each slide shoe plate which is opposed to the swash plate is in contact with an annular, spring-loaded retaining plate which is provided with a number of concentrically arranged recesses.

Abstract: A wobble plate compressor including a housing having a cylinder block provided with a plurality of cylinders and a crank chamber is disclosed. A plurality of pistons are coupled to a wobble plate and slidably fitted in the cylinders. A drive shaft is rotatably supported in the housing. An inclined plate connected to the wobble plate is rotated by the drive shaft through a rotor. The rotational motion of the inclined plate is converted into nutational motion of the wobble plate. A rotation preventing mechanism in used to prevent rotational motion of the wobble plate. The rotation preventing mechanism has a guide plate extending within the crank chamber, a cylindrical block including a vertical groove formed therein and retaining system for retaining the cylindrical block on the wobble plate such that the vertical groove is slidably fitted on the guide plate.

Abstract: The reciprocating saw incorporates a counterbalanced reciprocating drive having a jackshaft on which primary and secondary wobble plates are mounted. The wobble plates drive reciprocating saw spindle and a concentric counterweight in opposite directions to cancel out the induced vibrations. The spindle reciprocates in a bearing sleeve having a slot through which the primary wobble arm projects to drive the spindle. The counterweight slides on the outside of the sleeve and has a slot which slides over the primary arm. The secondary arm drives the counterweight. The arms are out of alignment to permit their strokes to overlap without collision. The wobble plates are angled out of 180.degree. so the spindle and counterbalance reverse at the same time. The cutting stroke and speed are increased and vibration is insignificant. The drive has many other uses.

Abstract: A swashplate type hydraulic axial piston machine whose swashplate is arranged on a rocker mounted to pivot in a segmental rolling contact bearing has a tracking device for the cage of the pivot bearing which comprises a rod-like guide element which is connected to said rocker in a first bearing in the rocker so that it can pivot parallel to the pivot plane (SE), is connected to said cage in a second bearing so that it can pivot parallel to the pivot plane (SE) and so that it can be displaced longitudinally, and is mounted to pivot parallel to the pivot plane (SE) in a third bearing. To make tracking by the cage possible without mounting the guide element on the housing, a rocker adjustment member is provided mounted so that it can be displaced transverse to the middle axis of the axial piston machine, and the third bearing is arranged on a guide member movably connected to the adjustment member and the rocker.

Abstract: A wobble drive mechanism for a translationally moving structural part includes a wobble rod which is moved by way of a crank drive mechanism. The wobble rod includes a spherical section at one end thereof that is seated in a bearing bush of a crank. At its opposite end, the wobble rod includes a second spherical section that is seated in a stationary structural part. A third spherical section is positioned between the two ends of the wobble rod and is seated in the translationally moving structural part. The spherical sections are supported in hemispherical articulation sockets located in the manner of a mirror image in the two structural parts. A spring device can be provided to ensure full contact of the spherical sections in their respective articulation sockets.

Abstract: A swash-plate type piston pump motor has a housing assembly comprising: an end plate for rotatably supporting a cylinder rotor against thrust loads in its axial direction and also rotatably supporting the upper end of an output shaft; a cylinder side peripheral wall encompassing the cylinder rotor; an inner peripheral wall which is joined contiguously to the cylinder side peripheral wall and extends downward toward the lower end of the output shaft. The inner peripheral wall encloses and supports a swash plate in an inclined state. A downwardly extending outer peripheral wall is also joined contiguously to the cylinder side peripheral wall and is flared outward toward the lower end of the output shaft, an annular space being formed between the inner and outer peripheral walls. The maximum flare angle of the outer peripheral wall relative to the axial direction of the output shaft is 30 degrees. The outer peripheral wall has at its open flare extremity a motor mounting flange.

Abstract: A rotary-to-linear motion converter comprising a frame having a roll axis, and a pitch axis passing through a common point. The axes are mutually orthogonal. The common point is positioned between an input end and an output end. An input shaft rotates on the roll axis and has an offset drive cam on its interior end. The offset drive cam has a central point positioned at the frame common point. A rocker housing has a pitch axis and a yaw axis. The pitch axis and yaw axis are mutually orthogonal and pass through a common reference point. Pitch bearings mount the rocker housing pitch axis for rotation on the frame pitch axis and position the rocker housing common reference point to be coincident with the frame common point. A rocker cam means rotates the rocker housing yaw axis and couples rotary motion from the offset drive cam into oscillatory rocker housing pitch motion. An output shaft is slidably coupled to the frame.

Abstract: A high output power generator incorporating a weighted load member having a substantially circular base is disclosed. A structural support has an enclosure for receiving the weighted load member. Levers are disposed at the base of the enclosure and are operatively attached to a rotatable power shaft. A weighted member rolls the weighted load member, while in a tilted position, about the edge of its circular base so that the weighted load member presses on successive levers to rotate the power shaft.

Abstract: A hydraulically operated swash-plate apparatus includes a cylinder block rotatably supported in a case and having a plurality of axial cylinders arranged in an annular pattern, the case having an end plate for bearing a thrust load from the cylinder block, a plurality of plungers received respectively in the cylinders, a swash plate supported in the case by trunnions and slidably held against the free ends of the plungers, an actuator for tilting the swash plate, the plungers being movable into and out of the respective cylinders by a stroke which is variable according to the angle of inclination of the swash plate, a support member by which the trunnions are rotatably supported, and a tension member coupling the end plate and the support member to each other. The apparatus also includes a stopper mounted in the case for engaging a back of the swash plate to limit the maximum angle of inclination of the swash plate.

Abstract: Rotary piston and barrel machine comprising a thrust plate inclined in relation to its geometrical spin axis which coicides with the geometrical axis of the barrel, the central part of the inclined plate comprising a spherical bearing which revolves freely around a fixed central toggle type joint anchored to the central part of the barrel, whereas the barrel is connected to a rigid peripheral housing, the central toggle type joint being integral with a rigid half shaft connected to the rear part of the housing, characterized by at least one rod connected rigidly to the toggle type joint, as well as to a piston disposed inside a bore of the barrel and subjected to the action of an under-pressure fluid so that at least one part of the axial stresses applied to the toggle type joint is transmitted to the barrel without being applied to the housing.

Abstract: A motion transmitting mechanism, for use as a sample manipulating device or wobble stick, is provided for transmitting manual movements through the wall of a vacuum vessel. The mechanism includes a central mounting flange for securing the mechanism in vacuum sealing arrangement with the vacuum vessel through a suitable orifice formed in the wall thereof. A spherical ball joint is moveably journalled within the mounting flange to enable the mechanism to be moved angularly relative to an axis perpendicular to the vacuum vessel wall throughout a predetermined range of limited angular displacement. A coaxial shaft assembly comprises an outer tube and a central shaft, the assembly being axially slideable through a central opening of the ball joint means to provide axial movements within the vacuum vessel throughout a predetermined range of limited axial displacement.

Abstract: An adjustable axial piston machine is disclosed which has a housing, a cylinder drum and an operating cylinder-servo piston unit capable of being acted upon by control pressure. The cylinder-servo piston unit has a movable part which is being connected with a control of the axial piston machine. The operating cylinder-servo piston unit has an annular configuration and is located around the cylindrical drum.

Abstract: An improved guide assembly, including a guide bearing and a pair of guide shoes, for a variable displacement wobble plate compressor is disclosed. The guide shoes include a body portion and positioning lugs that extend outwardly therefrom and arcuately around the guide bearing. The body portion engages the bearing and positioning lugs terminate in bearing edge surfaces. The lugs extend around the guide bearing such that said bearing surfaces are in close juxtaposition for load bearing contact. During operation, as compressor loading increases, the loading on the guide shoes from the wobble plate increases as well. This higher loading, and the tendency for uneven loading, brings the edge surfaces of the positioning lugs into load bearing contact. This serves to equalize the loading and substantially prevent relative guide shoe motion and frictional line contact with the guide rod. Thus, undesirable excess wear due to frictional contact of the guide shoes and the guide rod is avoided.

Abstract: A bearing arrangement particularly useful for supporting the driveshaft of a thermal engine in which the driveshaft is acted upon by a rotating bending load. Since a rotating bending load of such thermal engines generates driveshaft bending deflections which rotate with the driveshaft, the bearings supporting the driveshaft must be capable of accommodating such deflection. Conventional rolling element type bearings can accommodate driveshaft deflection or wobble but have limited operational lifespans. In accordance with this invention, a driveshaft bearing arrangement is provided utilizing plane bearings having spherical surfaces which restrain radial loads while accommodating driveshaft wobble. In one embodiment, the spherical bearing includes a ring member affixed to the driveshaft having a spherical outer surface which closely conforms to a concave bearing surface.

Abstract: A wobble plate type compressor with a variable displacement mechanism including a compressor housing is disclosed. A cylinder block including a plurality of cylinders is disposed in said compressor housing and a crank chamber is formed between the end of said cylinder block and a front end plate. An inclined plate is attached to a cam rotor which is further attached to a drive shaft. Rotational motion of the drive shaft is converted by the cam rotor and the inclined plate into nutational motion of the wobble plate. A plurality of pistons are coupled to the wobble plate with each piston being reciprocably fitted within a respective one of the cylinders. A rotation preventing mechanism includes a guide plate disposed at the bottom of the compressor housing, parallel with the drive shaft. A cylindrical block is rotatably disposed within a hole formed in an extended portion of the wobble plate.

Abstract: Disclosed herein are two embodiments of transmissions. In a first embodiment, a transmission is provided in which the input shaft and output shafts are mounted for rotation with respect to each other on a common shaft, and power is transmitted from the input shaft to the output shaft utilizing the gear on the output shaft meshed with an idler gear, the idler gear being coupled to the input shaft through a wobble plate mounted on the input shaft and the connecting rod coupled between the wobble plate and the idler gear. In one aspect of this embodiment, a plurality of idler gears are meshed with the gear on the output shaft and each of the idler gears is coupled to the wobble plate through a connecting rod and a one-way gear or brake.

Abstract: The invention relates to a swash plate swivel bearing for a hydraulic axial piston machine, in which roller-bearing segments are arranged between the hollow cylindrical bearing surface for the swash plate in the housing and the cylindrical bearing surface on the swash plate, which segments are held in curved cages with each of which is associated a tracker having a tracking mechanism guided by a guide member in a first guide, which mechanism is in drive connection with a carrier of the cage. It is the object of the invention to design a swash plate swivel bearing of the construction indicated above so that the guide member can cooperate directly with the carrier of the cage.

Abstract: A nutation frame is mounted on a base at a fulcrum connection for limited angular movement about those axes which are perpendicular to a nutation axis and is restricted against cumulative rotary movement about the nutation axis. The nutation frame rigidly connects reciprocating connections on axes approximately parallel to the nutation axes and radially spaced therefrom and a member designed for circular motion about said axis being axially displaced from said fulcrum. The frame can thus convert circular movement about the nutation axis to reciprocating movement or vice versa.

Abstract: A wobble plate type compressor with a variable displacement mechanism is disclosed. The compressor is provided with a variable angle rotating cylindrical member which is hingedly connected to a rotor. The rotor is fixed on the drive shaft and supports the wobble plate. The cylindrical member is formed with a central hole for receiving the drive shaft. The inner surface of the hole is formed so as to partially contact the drive shaft and restrict the radial movement of the cylindrical member while permitting variance of the angle of the cylindrical member.

Abstract: A vehicle includes at least a pair of drive wheels, each wheel being independently controlled by an integrated transmission, each transmission being powered by an input shaft operably driven by a common engine. Each transmission is of a type wherein a pump head with pistons is driven by the input shaft and conveys output fluid to a motor head which is driven thereby and rotates and output shaft. Pump head output is controlled by an operator variable swash plate. The transmission integrally includes a dampening mechanism for the swash plate, a positive neutral structure for the swash plate, an automatic parking brake with override mechanism to allow setting of the brake or release of the brake by the operator, a porting block communicating fluid flow between the pump heads and providing for overpressure relief, and a charge pump for communicating makeup fluid to the pump head and to circulate the fluid so as to cool same.

Abstract: A vehicle includes at least a pair of drive wheels, each wheel being independently controlled by an integrated transmission, each transmission being powered by an input shaft operably driven by a common engine. Each transmission is of a type wherein a pump head with pistons is driven by the input shaft and conveys output fluid to a motor head which is driven thereby and rotates an output shaft. Pump head output is controlled by an operator variable swash plate. The transmission integrally includes a dampening mechanism for the swash plate, a positive neutral structure for the swash plate, an automatic parking brake with override mechanism to allow setting of the brake or release of the brake by the operator, a porting block communicating fluid flow between the pump heads and providing for overpressure relief, and a charge pump for communicating makeup fluid to the pump head and to circulate the fluid so as to cool same.

Abstract: A lift and carry accumulating conveyor having a frame with a pair of elongated, spaced apart and parallel stationary rails. A pair of elongated, spaced apart and parallel movable rails are mounted to the frame so that the movable rails are movable between a forward and a retracted position as well as between an upper and a lower position and so that the movable rails extend generally parallel to the stationary rails. A shaft is rotatably mounted to the frame and is rotatably driven by a motor. A disk is obliquely attached to the shaft and is mechanically coupled to one end of the lever while the other end of the lever is attached to the movable rails to move the movable rails between the forward and retracted position upon rotation of the shaft. An eccentric cam is also attached to the shaft and, through a plunger attached at one end to the movable rails, vertically moves the movable rails between the upper and lower position upon rotation of the shaft.

Abstract: An internal combustion engine is described in which the piston movement is parallel to the drive shaft. The engine cylinders are arranged in opposed pairs and the piston rods directly coupled so that the power stroke in one cylinder can assist with the compression stroke in the associated cylinder. The coupled or common piston rods have attached thereto a carriage that engages in a cam groove in the drive shaft. The drive shaft cam groove receives the force of the carriage as it is propelled by the pistons and the resulting torque causes a rotation of the drive shaft. The cylinders include a precompression chamber that assists in the exchange of combustion products with air. The internal combustion engine does not require special cooling and does not require a starter motor.

Abstract: A cam plate type axial piston pump capable of operating a control lever operatively connected to a cam plate to control an inclination angle of the cam plate and control its discharge depending on the inclination angle. A piston pump of such type exhibits self-return force toward a position nearer its neutral point when it reaches a position near the neutral point. The pump of the present invention is so constructed that a thrust plate provided on a cam plate is pivotally moved in order to positively utilize the self-return force.

Abstract: A variable stroke axial piston machine having a balance disk that conjointly tilts and is driven with a swash plate to balance a rotating couple induced by the pistons.

Abstract: The invention relates to a pump with a barrel and an oscillating plate having a fixed central pivot. The pivot is solidary with two half-shafts which may be axially prstressed.The invention creates a balanced floating thrust bearing for the pivot bearing.

Abstract: The variable capacity swash plate compressor of the present invention includes a rotary swash plate having an eccentric mass located opposite to the driving point of the swash plate with respect to the axis of the same. The mass distribution in the rotary swash plate is established such that, within a range in which the piston stroke is less than a predetermined value, a moment about a pivot point produced by the rotation of the swash plate becomes larger than a moment produced by the reciprocating motion of pistons, piston rods and the like and acting upon the swash plate, while, within a range in which the stroke is larger than the predetermined value, the former moment becomes smaller than the latter moment. Accordingly, it is possible to provide a compressor of the type in which its capacity control characteristics are improved over a wide shaft speed range.

Abstract: A swash plate type refrigerant compressor having a swash plate supported on a rotatable drive shaft, a plurality of double-headed pistons engaged with the swash plate so as to be reciprocated in cylinder bores of the compressor is disclosed herein. The swash plate has formed round and throughout its circumferential periphery an annular groove. An annular ring member is received in the groove, said ring member having an outer diameter larger than the diameter of said swash plate and forming with the bottom annular surface of said groove a substantially annular clearance at least during the operation of the compressor.

Abstract: A wobble plate type compressor is disclosed which includes a compressor housing having a crank chamber and a cylinder block which is provided with an axial center bore and a plurality of cylinders. A plurality of pistons are slidably fitted within each of the cylinders. A cam rotor is disposed within the crank chamber to rotate together with a drive shaft. A wobble plate is coupled to the pistons through each connecting rod. The wobble plate is disposed on the inclined surface of the cam rotor to convert rotating motion of the cam rotor into reciprocating motion to be imparted to the pistons while preventing the rotational motion of the wobble plate. A first bevel gear is non-rotatably disposed within the center bore of the cylinder block. A second bevel gear is fixed on the wobble plate and engaged with the first bevel gear through spherical member to prevent rotating of the wobble plate.

Abstract: A variable displacement compressor has a sleeve axially slidably mounted on an axial drive shaft and a swash plate tiltably connected to the sleeve. The angle of the tilt of the swash plate is variable by an axial movement of the sleeve and a movement of the swash plate along a guiding cam track to vary the compressor displacement. The guiding cam track is provided by a cam groove having a form of a closed loop and formed in a driving plate drivingly connected to the drive shaft and to the swash plate to transmit the torque of the drive shaft to the swash plate. A fulcrum pin is provided on the swash plate and engaged in the cam groove and is movable along the guide groove toward the drive shaft as the angle of tilt of the swash plate is decreased.

Abstract: An improved wobble plate type refrigerant compressor in which the tendency of the wobble plate to rotate is reduced. The wobble plate is prevented from rotating and is allowed to nutate by a rotation-preventing mechanism which includes a pair of bevel gears which are coupled together. One bevel gear is located within the wobble plate and the other bevel gear is supported on the cylinder block. A steel ball is located between the bevel gears. The improvement is achieved by locating the bevel gear within the wobble plate so that the connecting rods are inclined to the axis of the cylinders. This arrangement is achieved by locating the bevel gear so that a line connecting the center of the bevel gear and including a point on the edge of the bevel gear located exactly between two teeth of the bevel gear includes a third point near the edge of the wobble plate which is located between receiving portions of the wobble plate but which is not located at the center between the two receiving portions.

Abstract: A wobble plate type compressor is disclosed wherein each piston is reciprocated within its respective cylinder by a wobble plate driven by a cam rotor mounted on a drive shaft, and in which the wobble plate is held against rotation by a rotation restraining means that includes a slide plate supported within the compressor housing and extending axially thereof, a slot formed in the periphery of the wobble plate and having a pair of concave recesses in the opposed inner surfaces of the slot and a pair of hemispherical bearings seated in the recesses and slidably receiving the slide plate therebetween.

Abstract: The invention relates to an axial piston machine having an oblique disk body (14) arranged in a housing (1) in a torsionally secure manner, having a drive shaft (4), which is mounted in the oblique disk body (14), and having a rotatable cylinder drum (7), which is coupled with the drive shaft (4) and in which a plurality of pistons (9) may be displaced axially in piston bore holes, their piston heads (11) being supported by means of sliding shoes (12) against the oblique surface (13) of the oblique disk body (14). The purpose of the invention is to construct the axial piston machine in such a way as to make possible torsional securement of the oblique disk body (14) which is simple in terms of production techniques and assembly, with a compact constructional form. This is achieved by mounting the oblique disk body (14) with its peripheral surface (16, 17) torsionally secured in a form-locking manner in a recess (19) of the housing (1) shaped to correspond to the peripheral surface (16, 17).

Abstract: A piston-operated machine is disclosed having a crank shaft and an intermediate crank section, the axis of the crank section being oblique to the axis of the crank shaft. The crank section passes rotatably and centrally through a wobble plate, and the center of the wobble plate lying on a prolongation of the axis of the crank shaft. A plurality of cylinders are provided having axes parallel to and equally spaced from the axis of the crank shaft. A piston in each cylinder is mounted on a piston rod extending coaxially from the cylinder to a respective connection on the wobble plate spaced from the center of the wobble plate. Each piston rod is rotatably but non-slidably engaged in a thrust member eccentrically rotatable in a thrust plate mounted to rotate about the same axis as the wobble plate.

Abstract: A swash plate (3) incorporated in a swash plate type compressor and comprising a boss (10) typically formed of aluminum material, which is fixedly secured on a drive shaft (2), and a swash plate assembly (11) extending obliquely from the boss (10), which assembly comprises a pair of front and rear contact plates (12) made of iron and brought into contact with a pair of shoes (6) which are accommodated in recesses (15a) of a piston (5), a connecting member (13) made of iron rigidly connecting the pair of contact plates (12), and a filler (14) made of aluminum material which completely fills the internal spaced formed between the contact plates (12).

Abstract: A shoe-and-socket joint, which is incorporated into a swash plate type compressor as a drive force transmitting unit arranged between a rotational swash plate and each of a plurality of reciprocal pistons, has a shoe provided with a spherically formed contact face and a recessed curved socket, for example, an ellipsoidal socket, deviated from a spherical form. Therefore, there is provided a wedge-shaped clearance between the socket and the shoe. An oil containing refrigerant gas flows enough into between the socket and the shoe to achieve a good lubrication.

Abstract: A variable displacement wobble plate compressor is disclosed having a bearing body with a slot and cylindrical guide surfaces such that the bearing body operates directly between a guide rod and a wobble plate to prevent rotation while permitting angulation of the latter.

Abstract: A shoe-and-socket joint, which is incorporated into a swash plate type compressor as a drive force transmitting unit arranged between a rotatable swash plate and each of a plurality of reciprocal pistons, has a shoe provided with a spherically formed contact face having a radius R2 and a spherically formed socket recessed in each of the pistons and having a radius R1, the radius R1 being 20 to 150 microns larger than the radius R2, to provide a clearance between the shoe surface and the surface of the socket into which an oil-containing refrigerant can flow to lubricate the shoe surface and the surface of the socket.

Abstract: A shoe incorporated into a swash plate type compressor as a drive force transmitting element intervened between a rotatable swash plate and a reciprocal piston has a first member made of a seizure-resistant material such as ceramic and hard metal, and has a flattened contact face in slidable contact with the swash plate, and a second member made of less seizure-resistant material but easily machined and having a spherical bearing face slidably engaged with the piston, the first and second members being joined together to form a unitary element.

Abstract: A wobble plate engine mechanism includes a stabilizer mechanism operating between a wobble plate and a mounting on the engine cylinder block or associated engine case. The stabilizer mechanism has first and second mutually inclined, elongate link means, the first link means having one end connected to the wobble plate by a first pivotal coupling and the second link means having one end connected to the mounting by a second pivotal coupling, spaced axially with respect to the mainshaft from the first coupling, with the link means being connected together at their other ends by a third pivotal coupling. The third coupling is centered on a bisecting plane for the wobble plate, the plane bisecting the angle between the wobble plate and a plane perpendicular to the longitudinal axis of the mainshaft.

Abstract: A hammer drill is provided with a clutch whose movable part is firmly connected to an axially displaceable drum which supports a wobbling disc driving a percussive mechanism for striking a work tool. The axially fixed clutch part is rotated by driving motor and is backed-up by a housing of the drill. Retroacting forces from the percussive mechanism are transferred via the drum onto the movable clutch part so that the engagement of the clutch is reinforced at the moment when the compression generated by percussive mechanism is maximum. When pressure applied on work tool is relieved, a separating spring disengages the clutch and braking surfaces on the drum limit its axial displacement and brake the rotation of the wobbling disc.

Abstract: A variable displacement wobble plate compressor with a guide unit for a wobble plate, having a cylindrical guide rod axially extending in the compressor in parallel with a compressor drive shaft, a slide slidably and rotatably fitted on the guide rod and provided with lateral pivots on laterally opposite sides thereof which extend in a direction at a right angle to the axis of the guide rod, and a pair of shoes pivotally engaged with the pivots of the slide and slidably received in a radial recess formed in a lowermost portion of the wobble plate. Each of the shoes has a semi-cylindrical outer face complementary with a semi-cylindrical concave wall of the radial recess of the wobble plate so as to permit a relative turning of the wobble plate to the shoes. The slide and shoes may have oil passageways and/or oil grooves.

Abstract: Links (48-50) tangential to the rotorshaft (30) and connected to the inner swashplate ring (38) center the swashplate and restrain it from rotating (in the case of a stationary inner ring) by attachment to gearbox lugs (34-36), or drive it in unison with the rotorshaft (in the case of a rotating inner ring) by attachment to rotorshaft flanges. Spherical (rod-end) bearings (52-54, 56-58) so that the links can accommodate collective and cyclic swashplate attitude changes by moving out of plane.Links (70-72) tangential to the outer swashplate ring (64) and connected thereto and to the airframe (74) perform a similar function in restraining, centering and allowing for collective/cyclic movement of a stationary outer swashplate ring.

Abstract: The wobble plate engine mechanism includes a cylinder block and mainshaft; a drive hub obliquely mounted for rotation with the mainshaft; a wobble plate rotatable around the hub; cylinders spaced around the mainshaft; and a piston moveable in each cylinder and couple to arms of the wobble plate. Piston and arm couplings comprises a cross-head reciprocable in a piston bore and a gudgeon pin moveable end-wise in a cross-head bore; the cross-head bore and ends of the pin defining cavities so lubricant access, under some operating conditions, dampens that end-wise movement. Means for shifting the wobble plate axis along the mainshaft includes a drawing member coupled to the mainshaft and rotatable on the block to draw the mainshaft, a rotatable actuator shaft and a drive train between the drawing member and actuator shaft. Means for varying the drive hub angle is pivotally connected to the hub and mainshaft on respective sides of the mainshaft.

Abstract: A swash plate type compressor is provided with a compressor shoe having a sliding contact surface for making sliding contact with a swash plate. The sliding contact surface is formed with a central hole. A crest portion is formed between the hole and the outer periphery of the shoe, and smooth surface portions connect the crest portion with the hole and the outer periphery, the crest portion being located substantially at or inwardly of a radially middle point of the sliding contact surface between the hole and the outer periphery.

Abstract: A swash plate compressor is disclosed having integral plastic ball and shoe parts with opposing working surfaces of equal area providing the drive between the opposite sides of the swash plate and the inner ends of double-ended pistons that straddle the plate.

Abstract: A variable displacement wobble plate compressor is disclosed having vibration isolation mounting cups supporting the opposite ends of a guide rod that operates through a multiple axis joint to prevent rotation while permitting angulation of the wobble plate.

Abstract: A variable displacement swash plate type compressor having a cylinder block in which a drive shaft is centrally and axially extended so as to mount thereon a swash plate assembly to drive pistons reciprocally arranged in a plurality of cylinder bores arranged circumferentially about the drive shaft. The swash plate assembly has a rotary swash plate and a non-rotary wobble plate in a crankcase formed in the cylinder block and a mechanism for changing the wobble angle of the swash plate and the wobble plate by turning them about an axis extending at a right angle to the rotating axis of the drive shaft and passing through points which come into registration with respective centers of connection of connecting rods of the pistons and the wobble plate when the pistons are at the top dead center of their strokes within the cylinder bores.

Abstract: There are disclosed a shoe which is interposed between a swash plate and a piston of a swash plate type compressor and which converts rotary movement of the swash plate into reciprocal movement of the piston, and a method for manufacturing the same. The shoe has a hemispherical part which is in slidable contact with the surface of a piston defining a hemispherical recess, and a flat end face which is in slidable contact with a bottom end face of the swash plate. According to the method of the invention, a columnar element is compressed in the axial direction for plastic deformation in such a manner that one end of the columnar element is deformed along the inner surface of a hemispherical recess of a die while the other end is urged against the flat end surface of another die.