Abstract: A control assembly for hydrostatic transmission having a valve controlling the flow of fluid to the pump includes a pump body member having a cavity with a moveable valve element mounted in the body and connected to a fluid pressure source, and having a neutral position. Linkage including an upstanding pin interconnects the pump to the valve element. A cover extends over the body and is secured thereto. A control shaft extends through the cover having an exterior end with a manual control lever mounted thereon, and an interior end to which a cam plate having an elongated cam slot therein is secured. A detent portion in the cam slot opposite to the upstanding pin defines a neutral position for the pin. A screw adjusts the valve element into a neutral position. A torsional spring in the cover yieldingly holds the control shaft, the control lever, the cam plate, the valve element, and the remainder of the linkage in a neutral position.

Abstract: A swash plate driven piston compressor includes means to maintain the pistons on their respective cylinder bore axes. A resilient alignment ring bears on the radial inner sides of the pistons at a point near the back ends of the pistons. The ring moves passively with the swash plate, without affecting its operation. The ring prevents the pistons from tipping radially inwardly and off their axes as they retract. The piston design is not appreciably changed, and the ring fits within otherwise empty space within the compressor housing.

Abstract: An automatic washer having an imperforate wash tub, a perforate wash basket disposed within the tub and rotatable about a vertical axis and a bottom plate disposed within the lower portion of the wash basket and mounted for wobbling motion. A motor is selectively interconnected with the basket and bottom plate for rotating the basket and the bottom plate together and for wobbling the bottom plate relative to the wash basket while the basket is held stationary such that the clothes items are agitated within the wash basket. A controlled rotation device is provided for driving the bottom plate in a wobbling motion while rotating the bottom plate, at a reduced rate, within the bottom of the wash basket. In a second embodiment, the wobble plate is supported and constrained to be driven in a wobbling motion while experiencing no rotation within the basket.

Abstract: A refrigerant compressor of the type in which a cylinder block and front and rear housings made of an aluminum alloy are fastened together by means of a plurality of bolts made of a ferrous metal and extending through part of the refrigerant gas passage in the compressor and respective bores formed in the front housing, is disclosed. Each of the bolts has a head supported on a bearing surface formed on said housing means, the bearing surface being formed by an annular projection concentric with the bore in the housing. The annular projection is plastically deformed by the bolt when the compressor is assembled, and the bolt head is carried by such deformed annular projection so that an increase in the tightening force is taken up by the elasticity of the projection.

Abstract: The drive mechanism for imparting reciprocating movement to the tool plunger includes first and second drive members. The first drive member is mounted on an eccentric formation which is in turn mounted on a drive shaft thereby to impart a wobbling movement to the first drive member. The second drive member is in the form of a piston mounted for reciprocating movement within a bore formed in the first drive member. The second drive member is pivotally connected to the plunger. The second drive member has a helical groove in its exterior surface. A lubricant is forced along the groove in part due to the reciprocating movement of the second drive member in the bore of the first drive member.

Abstract: A swash plate compressor in which a drive shaft is rotatably supported in a cylinder block having a crank chamber. The swash plate is rotatably disposed on the drive shaft. Thrust bearings are individually fitted between the movable thrust receiving faces of the swash plate and the stationary thrust receiving faces of the cylinder block. As the drive shaft rotates, the swash plate likewise rotates and reciprocates a piston to compress a refrigerant gas. Annular movable ridges are formed on the front and rear side faces of the swash plate concentric around the drive shaft. Stationary ridges are formed concentrically with the movable ridges on the cylinder blocks to face the individually movable ridges. The stationary ridge has a smaller radius than that of the movable ridge.

Abstract: A slant plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a compressor housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. The drive mechanism includes a drive shaft rotatably supported by the compressor housing, a cam rotor fixed on the drive shaft, and a slant plate having a surface with an adjustable incline angle. The incline angle is varied in accordance with the pressure in the crank chamber. A wobble plate is disposed adjacent the slant plate to convert the rotating motion of the drive shaft, the rotor, and the slant plate into the reciprocating motion of the pistons which are coupled to the wobble plate through corresponding connecting rods. A hinged joint mechanism hingedly connects an arm portion of the slant plate to an arm portion of the rotor to permit variations in the incline angle of the slant plate.

Abstract: A swash plate is mounted on a drive shaft disposed in a housing having a gas suction chamber in such a way that the swash plate is rotatable integrally with the drive shaft. A plurality of cylinder bores are formed around the drive shaft, extending along the drive shaft. Disposed in each cylinder bore is a piston, which reciprocates between top and bottom dead centers by undulating movement of the swash plate caused by rotation of the drive shaft. A compression chamber where gas is compressed by the reciprocal movement of the piston is defined in each cylinder bore. Provided between the drive shaft and the swash plate is a mechanism for altering an angle of the swash plate with respect to the axis of the drive shaft to change a reciprocal stroke of the piston to thereby control compression displacement. A rotary valve is provided at the drive shaft to be rotatable integrally with the drive shaft.

Abstract: A wobble plate in a wobble plate compressor has a bevel gear positioned at a central portion thereof. The bevel gear is provided with a centered ball seat. A second bevel gear is supported on the cylinder block and also has a centered ball seat. A bearing ball is seated in both of the ball seats so that the wobble plate nutates about the ball. At least one of the bevel gears is coated with electroless composite plating layer having a self-lubricative material, such as polytetrafluoroethylene (PTFE), dispersed therein. Consequently, the bevel gears have low frictional resistance, high hardness and improved anti-seizure characteristics.

Abstract: Arcuate bearings are useful, for example, in pivotally supporting a cradle swashplate of axial piston variable displacement hydraulic devices. The bearings of known hydraulic devices have either been a pair of laterally spaced roller bearings assembly or a pair of laterally spaced sleeve bearings. The subject hydraulic device includes a roller bearing assembly positioned between the swashplate and the housing at the side of the swashplate subjected to high loads and a less expensive sleeve bearing positioned between the swashplate and the housing at the other side of the swashplate subjected to low loads. By using this combination of bearings, the overall cost of the hydraulic device is reduced without impairing the operation of the hydraulic device.

Abstract: A swash plate type automotive air conditioning compressor that minimizes part count while providing a more robust and improved operation. A large diameter, single slotted ball located in a matching socket in each piston overlies the outer edge of the swash plate. As the plate turns, the sides of the plate rub along the sides of the ball slot, and the ball twists within the socket, reciprocating the piston. The larger diameter surfaces of ball and socket are easier to machine accurately, and part count is reduced to a minimum. The larger contacting surface areas provide for better lubrication and lower pressure loading.

Abstract: A control assembly, for hydrostatic transmissions equipped with a pump and a valve element to control flow of hydraulic fluid to the pump, including a pump body member having a cavity with a movable valve element mounted in the body and connected to a source of pressurized hydraulic fluid and having a neutral position. A cover member is secured over the body member and a control shaft having interior and exterior ends extends therethrough. A manual control lever is mounted on the exterior end of the control shaft, and a cam plate with an elongated cam slot therein is secured to the interior end of the control shaft. Linkage, including an arm pivotally connected to the pump body and having a first upstanding pin thereon, interconnects the pump and the valve element. A second arm pivotally mounted on the first upstanding pin and a second upstanding pin mounted offset from the first upstanding pin on the second arm interconnects the control lever and valve element via control shaft and cam plate.

Abstract: A swash plate type compressor with a variable displacement mechanism includes a compressor housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. The drive mechanism includes a drive shaft rotatably supported by the compressor housing, a pair of rotor plates fixed on the drive shaft and a swash plate having a surface with an adjustable tilt angle. The rotor plates are arranged on opposite sides of the swash plate. A plurality of slide contact coupling mechanisms extend between the swash plate and the rotor plate. The slide contact coupling mechanisms include two arms extending from opposite sides of the swash plate and a projection extending from one of the two rotor plates.

Abstract: A variable displacement compressor includes a hinge mechanism having a pair of support arms integrally formed with and protruding from the drive plate, and guide pins which connect the swash plate with the support arms. Each support arm is formed having a unshaped cutaway portion defining a channel for supporting ball portion of the hinge mechanism. The ball portion pivotably secured in the channel portion of the support arm, is attached to guide pin which in turn connects to a bracket protruding from the swash plate. The ball portion transmits pressure & rotational forces generated by the pistons and rotational force of the drive plate respectively. The forces cause the ball portion of the hinge mechanism to impinge upon pre selected surface area of the u-shaped support arm. By impinging on these preselected surface areas of the u-shaped support arm, the ball portion will not disengage from the channel portion of the support arm.

Abstract: The apparatus for producing a combination of rotating, tumbling and shaking movements of material in a container has a closed and constrained invertible kinematic link-work of which at least one link serves as receptacle for the container; and motive power for driving the link-work is provided by imparting thrusting power, rather than rotating power.

Abstract: A variable capacity single headed piston swash plate type refrigerant compressor is provided with a double fulcrum hinge mechanism having a pair of hinges for providing a pivotal connection between a rotary support element of a drive shaft and a swash plate assembly, causing reciprocation of a plurality of single headed pistons in cylinder bores for compressing a refrigerant gas. The pair of hinges of the double fulcrum hinge mechanism cooperate to absorb reaction forces of the compression and suction of the refrigerant gas acting from the pistons on the swash plate assembly to thereby prevent application of a local load to a sleeve element on which the swash plate assembly is turnably mounted.

Abstract: A swash-plate plunger-type hydraulic device has a cylinder block with a plurality of plungers slidably fitted in cylinder bores, a swash plate confronting one end of the cylinder block, and a distribution valve plate slidably held against the other end of the cylinder block. The cylinder block has an even number of circularly arrayed connecting ports communicating with the cylinder bores and opening at the other end thereof. The distribution valve plate has inlet and outlet ports. The cylinder block is rotatable through an angular displacement .theta.1 in which the hydraulic pressure in one connecting port between the inlet and outlet ports increases from a lower pressure to a higher pressure, through an angular displacement .theta.2 in which the hydraulic pressure in one connecting port between the inlet and output ports decreases from the higher pressure to the lower pressure, and through an angular displacement .theta.

Abstract: A variable capacity wobbling swash plate type compressing apparatus is provided with a housing (10), and a cylinder block (12) arranged in the housing; the cylinder block being provided with cylinder bores arranged radially with respect to the central axis of the housing and equidistantly to one another; the cylinder bores receiving therein pistons (16) to be slidable therein. A drive shaft (20) is arranged in a crank chamber (18) so as to extend along the central axis of the housing, and supports thereon a swash plate (40, 44) capable of wobbling about an axis perpendicular to a longitudinal axis of the drive shaft, and shoes (22) are arranged between the swash plate and the pistons for converting a rotation of the swash plate into reciprocation of the respective pistons.

Abstract: A mechanical press includes a slider which is reciprocated, through connecting rods, by an oscillating plate oscillating around a driving shaft to obtain a press load. The press further includes a swash plate rotatable with the driving shaft. The oscillating plate oscillates in accordance with the rotation of the swash plate. A plurality of lock pins are concentrically disposed in parallel with the driving shaft on a side of the oscillating plate opposite to the swash plate. Each of the lock pins has a spherical head housed in the oscillating plate so as to make the pins rotatable and axial movable. A slider guide supports the pins and the slider.

Abstract: A hydraulic power transmission including a compact external oil pressure takeoff apparatus which houses therein a hydrostatic transmission, and attaches thereto a charge pump. The transmission is capable of supplying operating oil and of taking out external oil pressure. Specifically, part of the discharge oil from the charge pump is adapted to be taken out from the housing so as to omit the need for an external takeout pump. An oil filter is disposed on the exterior of the housing, thereby facilitating maintenance of the hydraulic power transmission.

Abstract: A plurality of pistons of a variable displacement compressor are reciprocatably disposed in cylinder bores which are formed in a housing. A drive shaft is rotatably supported in the housing. A lug plate is rotatable with the drive shaft. A swash plate is tiltably and slidably mounted on the drive shaft. The swash plate is operatively coupled with the pistons. A hinge mechanism connects the lug plate and the swash plate. The hinge mechanism causes the pistons to reciprocate via the lug plate and the swash plate, in response to the rotational motion of the drive shaft. The hinge mechanism includes a pin, which has a first and a second end portions. The first end portion of the pin is slidably inserted into the swash plate. A support arm protrudes from the lug plate, and further includes a bush. The bush rotatably supports the second end portion of the pin.

Abstract: A variable capacity swash plate type refrigerant compressor having a swash plate assembly rotatably mounted on a drive shaft and capable of turning around a hinge-ball to change an angle of inclination thereof, and a plurality of pistons reciprocated by the swash plate assembly within a plurality of cylinder bores to implement suction, compression and discharge of refrigerant gas in response to the rotation of the drive shaft, the hinge-ball being formed with a central bore for permitting the drive shaft to extend therethrough, a single spherical outer face, and a pair of flat faces arranged symmetrically with respect to a plane passing the middle of the spherical outer face and perpendicular to the axis of the central bore.

Abstract: A radially facing circumferential surface of a cam, in at least some planes which radiate from the cam axis, includes lines which are inclined relative to the cam axis. The inclinations of these lines vary from one axial plane to another, except in the dwell regions of the cam. A wobble member is supported for oscillating movement about a wobble axis. One or more cam followers on the wobble member engage the cam on opposite sides of a transverse reference plane which is substantially perpendicular to the cam axis. During operation of the mechanism, the cam turns about its axis, and the wobble member oscillates about its axis. The mechanism is used in a sewing machine to move a looper.

Abstract: A wobble plate type refrigerant compressor is disclosed which includes a compressor housing having a crank chamber and a cylinder block which is provided with an axial central bore and a plurality of cylinders. A plurality of pistons are slidably fitted within each of the cylinders. A wedge-shaped 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 corresponding 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 rotating motion of the wobble plate. A first bevel gear is fixed on the wobble plate and a second bevel gear connected thereto is supported by the cylinder block.

Abstract: A swash plate mechanism, for coverting linear motion into notary motion and vice versa is disclosed, which overcomes the main difficulties with older arrangements of swash plate drives. These are the high friction of most drives or the high complexity of efforts to overcome the friction effects. The mechanism of this invention permits the application of low friction bearings like ball bearings, in all of the rotating or sliding joints of the machine, except for the pistons, and their cylinders. The mechanisms described can be used in engines or in pumps with equal ease. The swash plate system disclosed, for example, has two spaced swash plates, rotating on a common shaft. A driving plate, which does not rotate, is positioned-between the swash plates and contacts each of the swash plates via ball or roller bearings.

Abstract: A swash plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a compressor housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. The drive mechanism includes a drive shaft rotatably supported by the compressor housing, a pair of rotor plates fixed on the drive shaft and a swash plate having a surface with an adjustable incline angle or tilt. The rotor plates are arranged on opposite sides of the swash plate. The swash plate converts the rotating motion of the drive shaft into the reciprocating motion of the pistons which are coupled to the swash plate through bearings. A pair of hinge coupling mechanisms hingedly connect an arm portion of the swash plate to an arm portion of each of the rotor plates to permit variations in the incline angle or tilt of the swash plate.

Abstract: A slant plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a drive mechanism having a drive shaft rotatably supported in a compressor housing and a coupling mechanism for drivingly coupling the drive shaft to pistons such that rotary motion of the drive shaft is converted into reciprocating motion of the pistons. The coupling mechanism includes a slant plate having an inclined surface. The slant angle changes in response to a change in pressure in the crank chamber and, thus, changes the capacity of the compressor. The drive shaft includes an inner end portion which has a diameter that is smaller than a diameter of the remainder of the drive shaft. A bias spring which has an outer diameter that is greater than a diameter of the remainder of the drive shaft is resiliently mounted on the inner end portion of the drive shaft between the slant plate and the cylinder block.

Abstract: A radial piston pump includes a pair of inboard trunions which provide tilting bearing support for the swashplate. The trunion blocks may be made from sections of ordinary cold rolled steel bar stock and attached to the end wall of the pump housing with externally accessible bolted connections which allow final precise alignment of the trunion blocks in the assembled pump. The swashplate includes a concave cylindrical bearing surface which rides on the trunion blocks and, to enable precision finishing and machining of the concave bearing surface in a simple manner. Two swashplates are made from a single metal casting in which a full cylindrical through bore can be accurately cut and finished, and the casting subsequently cut in two to provide two swashplates. The swashplate is mounted with its transverse tilt axis offset from the axis of the pump drive shaft in a direction providing a net imbalance in piston spring biasing force to urge the swashplate on-stroke to enhance start-up operation.

Abstract: A plunger and swash-plate type hydraulic pump or motor with a retainer plate 30 that presses a slidable abutment 22 of each of a plurality of shoe members 20 against a slidably abutting surface 8a of a swash-plate 8 in such a manner that a neck 21 of each shoe member is inserted into each of a plurality of insertion holes 31 of the retainer plate 30. An imaginary center plane C.sub.3 or C.sub.4 of the part of the inner surface of each of the insertion holes 31 which abuts against the outer periphery 21a of the neck 21 is coincident with the center O.sub.2 around which each of the shoe members 20 swings relatively to the plunger 10 in the axial direction of each of the insertion holes 31.

Abstract: An integrated drive arrangement for a vehicle propulsion system for transmitting vehicle drive torque and for independently driving external implements. The drive arrangement includes a power input shaft having a number of axially spaced drive gears and being driven by a prime mover. The pump shaft of a variable displacement pump is drivingly connected with one of the drive gears of the power input shaft. A fixed displacement motor is connected in closed circuit to the variable displacement pump. A number of drive pinions are spaced axially along an intermediate shaft which is spaced from the power input shaft and are connected to the intermediate shaft and the power input shaft by an electromagnetic clutch. First and second power take-off shafts are drivingly connected with the intermediate shaft such that the power input shaft imparts independent rotation to the power take-off shafts and the pump shaft.

Abstract: The invention concerns axial piston machines for installation in gearboxes and for detachable attachment thereto, having an machine housing open on one side, a connection block which closes this housing and has a pressure duct and an suction duct for the pressure medium, and a driving shaft rotatably mounted in the machine housing and the connection block, which drive shaft projects from the axial piston machine for the purpose of connection to a gear unit, the gearbox being capable of being closed by means of a gearbox cover, and having through apertures for the supply and discharge of the pressure medium to the pressure duct and suction duct.

Abstract: A wobble plate type compressor having a cantilevered drive mechanism is disclosed. The compressor includes a compressor housing having a plurality of cylinders and a crank chamber adjacent the cylinders. A reciprocative piston is slidably fitted within each of the cylinders. A drive mechanism is coupled to the pistons to reciprocate the pistons within the cylinders. The drive mechanism includes a drive shaft which extends through an opening of a front end plate and extends into the compressor housing. A cam rotor is attached to an inner end of the drive shaft and rotates therewith. A support mechanism radially and rotatably supports the drive mechanism. This support mechanism, which is formed within the cam rotor and interfits with the front end plate, includes a bearing located within the cam rotor.

Abstract: A swash plate type compressor is disclosed which is intended to prevent a hemispherical shoe, provided between the piston and the swash plate, from being spun on slat surface of the swash plate during operation of the compressor. In the preferred embodiment of the invention, the swash plate is formed with a step and the shoe with a cut portion engageable with the step so that the shoe is prevented from being spun on the slant surface of the swash plate which provides a turning moment to the shoe. The step is formed by an annular projection having an annular wall portion defining the inner limit of the slant surface area of the swash plate with which the flat face of the hemispherical shoe is kept in sliding contact, and the cut portion of the shoe has a curved surface conforming to the curvature of the annular wall portion. The shoe is located with its cut portion slidably contactable with the annular wall portion.

Abstract: A wobble plate compressor includes a non-rotary socket plate mounted on a journal of a rotary drive plate. The drive plate includes a bushing and a needle-type thrust bearing to accommodate relative rotary movement between the plates. The socket plate and drive plate are retained together by an assembly including a square-edged annular channel formed in a recessed journal, a thrust washer for engaging the journal and the bushing and a dished retaining ring. The dished retaining ring also includes square edges mating with the adjacent sides of the channel. The retaining ring engages the thrust washer so as to provide a preload force to seat the washer on the journal and for biasing the socket plate against the thrust bearing. The retaining ring is characterized by a three degree dish angle when compressed between two flat parallel surfaces with an applied load of 30N.

Abstract: A piston coupling mechanism for a swash plate type compressor is disclosed. A disk-shaped swash plate is pivotally mounted on a drive shaft for rotation together with the drive shaft. A plurality of pistons are mounted to the peripheral portion of the swash plate. Each piston is arranged to linearly reciprocates in accordance with the rotation of the swash plate. Connecting members are provided for coupling the piston and the swash plate. The connecting members are arranged to move at least in a radial direction of the drive shaft.

Abstract: The face angle dependent force versus displacement properties of the double faced, asymmetrical inclined plane are extended to a three dimensional rotating machine which exhibits the properties of continuously variable torque versus speed ratios in both forward and reverse directions. These desired properties are obtained in the three dimensional model through the use of circular disks which are tilted on their axes of rotation to create the force versus angle properties of the inclined plane. The selection of desired torque-speed ratios including transitioning through a zero speed or "frictionless clutch" operation. Ratio selection is accomplished by setting the tilt angles of three disks around their respective axes of rotation. Two of these disks are mounted through universal joint mounts to the transmission output shaft and the third disk is mounted, through a universal joint mount, to a non-rotating sleeve surrounding the output shaft.

Abstract: An assembly for providing socket plate torque restraint for a variable displacement wobble plate compressor includes a non-rotary Rzeppa joint. The joint has an outer race, an inner race, grooves in the races, a plurality of torque receiving balls and a cage for properly maintaining and positioning the balls in the grooves for operation. The joint is connected to an anti-rotational shaft. The shaft is mounted by the drive hub of the compressor to allow for translational axial and relative rotational motion. At least one key is received in a keyway in the anti-rotational shaft and a companion socket in the cylinder block fixed to the compressor housing. The Rzeppa joint provides the ideal kinematic restraint motion of the socket plate; the profile of the grooves on the inner and outer races and the cage having a curvature to effectively maintain the balls situated substantially in a single torque transmitting plane that bisects the joint angle.

Abstract: An assembly for providing socket plate torque restraint for a variable displacement wobble plate compressor is provided. Swing arms support a guide pin and allow for swinging motion to be directed to the pin. A translatable driving sleeve is attached to and rotates with the compressor drive shaft. The sleeve is formed with a cam section having a variable axial profile. An axially fixed follower cooperates with the cam section to generate the motion of the guide pin relative to the socket plate. The motion defines a motion of the socket plate which produces no inertial torques. The compensating torque restraint smooths the uneven driving action of the socket plate. The position of the cam section varies in relation to the displacement orientation of the socket plate, thus allowing precisely that socket plate motion, at all stroke positions, which produces no inertial torques.

Abstract: An assembly for providing socket plate torque restraint for a variable displacement wobble plate refrigerant compressor includes a non-rotary cross groove joint. The joint has a cylindrical outer race, a cylindrical inner race, slightly angled helical grooves in the races, a plurality of torque receiving balls and a cage for properly maintaining and positioning the balls in the cooperating grooves for operation. The joint is connected to a fixed anti-rotational shaft. The shaft is in the form of a sleeve and forms the inner race to effect torque restraint, but at the same time allow for translational axial motion of the socket plate. Radial and thrust bearings mount said socket plate relative to the rotary hub/journal. Lubricating fluid carried by the gaseous refrigerant lubricates the grooves and is then transferred by a passage extending from the grooves in the outer race to the radial/thrust bearings.

Abstract: A slant plate type compressor including a compressor housing having a cylinder block is disclosed. A plurality of peripherally located cylinders are formed through the cylinder block. A piston is slidably fitted in each of the cylinders and is reciprocated by a drive mechanism which includes a slant plate. The slant plate includes a boss for mounting a balance weight ring thereon. The balance weight ring includes an annular depression formed at an inner peripheral portion thereof. The balance weight ring is firmly attached to the boss by different types of retaining means.

Abstract: The invention relates to an axial piston machine of the swashplate type in which the drive shaft passes through the swash plate, the swash plate can be tilted about an effective tilt axis so that its working surface supporting the pistons has a radial component of motion relative to the drive shaft as it is tilted in the direction of which the effective tilt axis is displaced parallel as the swashplate is tilted. In order to adjust the swashplate to a larger tilt angle, according to the invention the effective tilt axis is adjusted radially in a direction opposite to the direction of the radial component of motion (R) of the swashplate working surface.

Abstract: A variable displacement compressor having a rotary drive shaft coupled to a gas pressure positioned wobble plate carried by a drive mechanism including a drive journal and journal sleeve on the rotary drive shaft and a drive lug connected to the drive shaft having a slot operatively connected by a coupling pin to the journal. Thrust bearings located in the cylinder head and front head of the compressor axially position the drive mechanism within a gas pressured crankcase. The rear thrust bearing includes a race engaged by a coil spring on the shaft to provide relative axial movement between the shaft and the rear thrust bearing to compensate for end play between the thrust shoulders and the thrust bearings following assembly of the cylinder head and front head.

Abstract: A fluid pumping assembly including a housing and a plurality of pistons disposed parallel relative to one another and supported for reciprocal movement in the housing. The assembly also includes a shaft which is supported by the housing and which has a longitudinal axis. A wobble plate is mounted about the shaft. A drive mechanism is rotatably driven about the longitudinal axis of the shaft and drives the wobble plate through angulartory movement relative to the shaft thereby reciprocating the pistons. The shaft is nonrotatably supported in the housing but is precisely moveable coaxial of its longitudinal axis to predetermined points to adjust the position of the wobble plate thereby precisely varying the displacement of the assembly.

Abstract: A swashplate configuration for a helicopter which eliminates the need for a uniball centering bearing and either a stationary or rotating scissors linkage through the use of elastomeric bearing assemblies consisting of a first stack of flat laminates oriented both vertically and radially with respect to the axis of the main rotor shaft and a second stack of spherical laminates having a center axis oriented radially with respect to the main rotor shaft axis and which reacts centering and torque loads through compression of the laminate stacks.

Abstract: A mechanism for transmitting torque from one shaft to another shaft includes a formation attached to one shaft, the formation defining a plurality of cylindrical surfaces each having radius R, the axes of the cylindrical surfaces being parallel and disposed at angularly spaced locations about a circle of radius M, each cylindrical surface is engaged by a cylindrical bearing formation attached to the other shaft, each bearing formation having a radius r and being disposed in similar angular relationship to the cylindrical surfaces about a circle of axis inclined at angle to the axes of the cylindrical surfaces, the radius of the circle upon which the bearing formations are disposed being equal to M/(1+cos) and the radius R of the cylindrical surfaces being equal to r+M(1-cos)/(1+cos).

Abstract: A flexible composite scissor assembly is disclosed which utilizes one or more composite straps disposed either in a radial or non-radial relationship between a hub attached to a rotor and an inner or outer ring of a helicopter swashplate. The composite material has sufficient edge-wise stiffness to allow effective torque transmission between the rotor shaft and the swashplate yet has sufficient flexibility to allow for a vertical and angular displacement of the swashplate relative to the rotor shaft. Utilizing a flexible composite scissor assembly eliminates the need for mechanical linkages having pins and bearings which are a frequent source for wear, increasing the reliability of the rotor assembly, while reducing weight.

Abstract: A variable displacement swash plate type compressor operable with reduced vibration and noise and, hence, suitable for use in automotive air-conditioning refrigeration cycle has a main shaft adapted to be driven by a driving power source; a drive plate fixed to the main shaft; a swash plate main part tiltably engaging through an engaging portion with the drive plate so as to be tiltable with respect to the axis of the main shaft and to make a precessional rotation in accordance with the rotation of the main shaft; a piston support rotatably carried by the swash plate main part so as to make a precessional rotation together with the swash plate main part; pistons having one ends engaging with the piston support so as to reciprocatingly move in respective cylinders in accordance with the precessional rotation of the swash plate main part; and a mechanism for causing a change in the angle of tilt of the swash plate main part with respect to the axis of the main shaft so as to effect a control of displacement.

Abstract: A variable capacity wobble plate type compressor provided with a reciprocatory piston mechanism for compressing a refrigerant gas and discharging the compressed refrigerant gas, a drive shaft driven by an external drive source to allow an assembly of angularly variable drive and wobble plates to reciprocate the reciprocatory piston mechanism, a coil spring mounted on the drive shaft for applying a biasing force to the assembly of drive and wobble plates toward a predetermined angularly inclined position, and annular spring support members for supporting the opposite ends of the coil spring so that the coil spring is not in contact with the outer surface of the drive shaft, to thereby prevent an abrasion of the coil spring and the drive shaft when the coil spring is contracted and expanded during the operation of the compressor.

Abstract: A controllable gyroscopic propulsion apparatus comprising a base, a shaft rotatably mounted on the base, a cylindrical frame attached to the shaft and rotating therewith, a plurality of rods slidably and horizontally carried by the frame, weights attached by a pulley and cable system to the rods so that sliding the rods horizontally causes the weights to move radially, and a rotatable, tiltable plate for changing on command the horizontal positions of the rods so that the apparatus develops propulsion in the desired direction. The ends of the rods bear against the plate that can be rotated and tilted using a paid of cylinders. A motor may be attached to the base of the apparatus.

Abstract: A wobble device is provided including a circular platform, a structure for pivoting the platform to achieve a wobbling movement, a shaft transverse to and positioned in a center of the platform, a moveable carriage rotatably attached through an arm to the shaft, a roller structure for moving the carriage on an upper surface of the platform, and a support frame below the platform. A forcing structure attached to a plurality of extension members downwardly directs the platform tilting an end of the platform toward the support frame. As the platform inclines towards the forcing structure, the carriage also begins to rotate. Once in motion, only a minimum amount of electrical energy is needed to maintain the wobble. As the carriage rotates, it turns a spur gear system attached to the center shaft. This rotational movement is then transferred through the gear mechanism to an armature of an electrical generator fastened to the platform upper surface.