Abstract: A variable displacement pump includes a plurality of pistons and a swash plate arranged therewith, with the swash plate displaced in response to pump discharge manifold pressure for controlling the stroke of the pistons to maintain a predetermined substantially constant pressure with a variable flow of fluid through the pump.

Abstract: A spring compensation mechanism for a swashplate drive having a variable swashplate angle, particularly suited for use with ahot gas engine. A compensating rod has one end connected for movement in one direction in response to tilting of the swashplate while the other end is connected to move in a perpendicular direction against the force of a spring.

Abstract: A piston type energy conversion machine in which the thrust of one or more reciprocating pistons is transmitted to a nutating tubular member having longitudinally spaced journal surfaces of revolution about a nutating axis adjustably inclined with respect to a primary engine axis. The journal surfaces on the nutating member are engaged by a crank member rotatable on the primary engine axis and carrying adjustably eccentric bearings to engage the journal surfaces of the nutating member. Angular adjustment of the axis of nutation effects a variable piston stroke distance as a result of a connection of the pistons to the nutating members at points spaced radially from the nutating axis. Compression ratio is adjusted independently by shifting the point of piston connection with the nutating member along the nutating axis.

Abstract: An improved slant axis rotary mechanism including a housing defining a chamber having radially inner and outer spherical walls interconnected by opposed, generally radially extending side walls, a shaft journalled in the housing and having an angularly offset portion within the chamber, a timing gear within the chamber at one side thereof and surrounding the shaft, a rotor journalled on the angularly offset portion within the chamber and having a spherical hub and a peripheral, radially outwardly extending flange extending from the hub, and a ring gear carried by the hub on one end thereof and meshed with the timing gear. In the inventive mechanism, the included angle between opposite portions of the flange on the side opposite from the gears is less than 180.degree. thereby enabling the thickness of the flange to be increased, or the wobble angle to be increased, or combinations of the foregoing.

Abstract: An expansible chamber energy conversion machine having a frame, a torque transmitting member supported by the frame for rotation about a first axis, a nutatable member having journal surfaces concentric with a second axis intersecting the first axis at an angle to establish a point of axes intersection, support means rotatable on the first axis and rotatably supporting the nutatable member for movement of the second axis in a biconical path about the first axis with the apex of the biconical path coincident with the point of axes intersection, one or more pistons reciprocable through a stroke distance in working fluid chambers having end faces fixed relative to the frame and adjustable linkage assemblies for connecting the pistons with the nutating member. The nutatable member is supported by the support means by way of a journal member arranged to change the angle of first and second axes intersection upon axial movement of the journal member relative to the support member.

Abstract: A wobble plate compressor in which the output of the compressor is modulated in response to refrigeration requirements by varying the compressor piston displacement to match the cooling requirement. The compressor housing front end has an axial protruding integral tubular extension which supports one end of a drive shaft by means of a journal bearing supported in the tubular extension. A cup-shaped hydraulic modulating cylinder is located in an axial fixed relation on the drive shaft adjacent the front end cover such that a disc-shaped piston, mounted on an axially slidable sleeve surrounding the drive shaft, is telescopically received in the cylinder rearwardly facing open end so as to define with the cylinder an expansible hydraulic chamber. An axially extending recess in the shaft defines an open-ended passage providing hydraulic fluid flow communication between radial passage means in the housing front end and the expansible chamber.

Abstract: A reciprocating engine, pump or compressor comprises a number of cylinders arranged in an annular array around a central axis. Pistons reciprocable within the cylinders are linked by means of connecting rods to a common swivel member in meshing engagement with a crank. The swivel member is mounted for universal pivotal movement about a point lying on the axis of the array.

Abstract: A wobble plate compressor including a three-part housing in the form of a front shell-like section, defining a wobble plate mechanism cavity, an intermediate cylinder block section and a rear head section, all of the parts being connected in series such as by elongated cap screws. A blind bore in the first section end cover receives a piston to define an expansible chamber actuator. Passage means are formed in the housing for conducting hydraulic fluid from the housing sump to the inlet of pump means. Hydraulic liquid outlet passage means, providing a flow passage between the front and rear heads, are formed in the housing such that control valve means in the rear head can affect the flow of the liquid or oil from the sump to the expansible chamber, causing the modulating piston to vary the angle of the wobble plate mechanism and thus the pumping capacity of the compressor.

Abstract: This invention is a reversible mechanical movement. A bearing arm is rigidly connected to an oscillatory shaft. A contact disc is rigidly attached to a rotatable shaft. The bearing arm and the contact disc contact one another to convert rotary motion to oscillating motion, or the reverse. The conversion of oscillating motion to linear reciprocating motion, or the reverse, is accomplished by conventional methods.

Abstract: A variable stroke piston engine in which power developed by piston reciprocation is transmitted to a cylindrical nutating member journaled on its exterior to a rotatable support connected to a second shaft concentric with the first shaft, the nutating member having an internal surface in frictional engagement with a pair of oppositely convergent cone-like members keyed for rotation with the first shaft. The nutating member is disposed on an axis inclined with respect to the axis of the first shaft at an angle which may be adjusted to vary simultaneously piston stroke distance and rotational speed of the first shaft without changing the rotational speed of the second shaft for a given frequency of piston reciprocation. The first and second shafts are connected respectively to each of two inputs of an epicyclic gear train having an output planet gear carrier connected to an engine output shaft.

Abstract: An expansible chamber energy conversion machine, such as an internal combustion engine, in which one or more reciprocating pistons drivably revolve a nutating member about an output torque delivery shaft in a manner to enable variation in piston stroke distance. The nutating member forms part of a variable speed ratio transmission and is adjustably supported on an axis inclined to the output shaft by an eccentric sleeve rotatable with respect to a support rotatable on the shaft axis. Piston reciprocation is translated to the nutating member by way of arm-like extensions of the nutating member and swivel links.

Abstract: A hydrostatic transmission drive pump swash plate control including a control arm and a cam which are mounted on axes perpendicular to one another. The control arm is connected to the swash plate to effect simultaneous movement of the control arm and swash plate. Cushioned link means operatively interconnect the cam and a manual control member. The cam includes a cylindrical portion with a cam slot which is shaped similar to the first 90.degree. of a sine wave between full speed reverse and neutral and similar to the first 90.degree. of another sine wave from neutral to full forward speed. A resilient cam roller on the control arm absorbs fluctuating stroking forces of the pump and cooperatively engages the cam slot to produce a low rate of ground speed change near the neutral condition of the hydrostatic transmission and also near maximum forward and maximum reverse ground travel speed.

Abstract: The invention relates to an agricultural implement comprising a tool oscillating about a vertical axis, for example a spreading pipe of a fertilizer distributor, a mechanism for producing the oscillatory movement of the tool being formed by a rotatably driven flywheel and a coupling element eccentrically in said flywheel and engaging the tool or a holder thereof at a distance to said axis, and comprising a frame carrying the tool and the driving mechanism; the objects of the invention are to provide an improved frame, flywheel and toolholder respectively in particular the arrangement of the bearings relative to each other in order to achieve a more quiet run of the implement resulting in a light weight construction, longer lifetime and lower cost price.

Abstract: Variable displacement and/or variable compression ratio reciprocating piston engine, for example, an internal combustion engine, having piston and drive shaft essentially parallel to one another with a swash plate mounted on the drive shaft and a connection between the piston and the swash plate. The mounting of the swash plate permits variation of the angle to the drive shaft to vary the piston stroke and also permits movement of the swash plate along the axis of the drive shaft to exercise control over the compression ratio.

Abstract: An axial piston, variable displacement, wobble plate gas or vapor compressor containing improvements in the capacity control system and in the drive plate and wobble plate mounting arrangements.

Abstract: A wobble plate compressor in which the output of the compressor is modulated in response to refrigeration requirements by varying the compressor piston displacement to match the cooling requirement. An expansible chamber power unit including a sleeve surrounds the drive shaft in sealing relation therewith for axial movement with said sleeve including a wobble plate connected thereto for pivotal movement relative to the shaft. The wobble plate angle is varied during the axial movement of the sleeve by means of a drive lug on the drive shaft having a cam track therein connected in rotary driving relation to cam follower means on the wobble plate. The cam track opposite ends define respectively, maximum and minimum stroke lengths for each of the pistons whereby under controlled pressure conditions the force system results in the pistons tending to go to their full stroke positions.

Abstract: A hydrostatic bearing lubrication system for a swash plate compressor or engine in which the compressor or engine has at least one reciprocating piston assembly mounted in a cylinder and connected to and reciprocating with a stator in which a rotating and oscillating rotor is mounted. At least one hydrostatic bearing shoe is mounted within the stator in a bearing relationship with the side of the rotor subject to the highest loads in the operation of the compressor or engine.In such a compressor or engine the invention comprises means for continuously varying the pressure of the lubricating fluid delivered to the bearing shoe directly with the load on the bearing shoe. That means comprises a closed cylinder with a free piston carried therein. One end of the closed cylinder on one side of the free piston is interposed in the lubricating fluid pressure line from a constant pressure lubricating fluid pump to the bearing shoe.

Abstract: A drive means and mounting therefor for converting rotational drive motion to linear reciprocatory motion for driving tool means in linear reciprocatory motion relative to frame or cutting bar means. The drive means includes a wobble shaft drive assembly mounted directly on the cutting bar, the drive assembly having a drive shaft with the typical axial offset portion, and with gimbal means including a generally "U" shaped yoke member coupled to a drive bearing which is secured to the axial offset shaft portion. Connecting arm means are arranged in generally axially aligned relationship with the tool means, and first and second ball joints are utilized to couple the yoke to the reciprocating tool means. In this fashion, the cutting bar provides a rigid mount for the wobble shaft drive means and positive vibration-free drive motion is provided.

Abstract: The invention is a hydrostatic device which converts rotary motion to oscillating motion for driving a sickle bar type mower by using a rotating cam plate to operate a rocker arm through a hydraulic coupling in the form of a pair of hydrostatic cylinders. The cylinders are continuously charged and due to valving openings in the pistons, the cylinders are continuously maintained in-phase with each other and the sickle bar which is being driven.

Abstract: Operating means for a window including a horizontally pivoted panel comprises an elongated torque tube extending parallel to the panel pivot axis. A torque-transfer element is pivotally connected to the torque tube for movement relative thereto about a primary transverse axis and an operating crank, which is drivingly connected to the torque-transfer element, is arranged for rotation relative to a horizontal axis at right angles to the axis of the torque tube.

Abstract: A swash-plate transmission drive system including a rotary driven shaft, reciprocally movable drive shafts, a swash plate secured on said driven shaft, and sliding members, each having a flat surface engaging said plate and a spherical surface engaging one of said drive shafts.

Abstract: The invention relates to a driving mechanism for a reciprocating engine, comprising a casing, a drive shaft which is rotatably mounted in said casing and a transmission means for power transmission from at least one reciprocating piston to said drive shaft.

Abstract: A novel motion translation mechanism is provided for translating rotary motion to reciprocal motion or reciprocal motion to rotary motion. The mechanism is adapted for use in a positive displacement machine for pumping and compressing fluids. A shaft is journaled for rotation within a stationary housing. An inclined annular bearing surface having an annular bearing thereon is integral with the shaft intermediate the journals. Reciprocal motion is imparted to a piston by a yoke ring journaled within the housing and interconnected to the annular bearing. A continuous seal arrangement is carried by the piston. Novel valve means control fluid flow within the machine.

Abstract: A Swashplate Machine having a non rotatable swash plate mounted so that rotation of a shaft causes oscillation of the swash plate and one or more baffles mounted in slots in the swash plate dividing the swash plate into portions which oscillate to cause the volume of chambers to vary.

Abstract: A mechanism for reciprocating engines or pumps, the mechanism transmitting power from the axially arranged piston rods to the axially arranged main shaft via a slant fixed to said shaft and a cross head gripping and sliding on the edge of the slant. The inward directed components of the rotating transverse force vector T are absorbed by one or more Michell thrust blocks sliding on a cylindrical surface coaxial with the main shaft.

Abstract: A power transmitting mechanism for reciprocating engines or pumps connecting the piston rods of a plurality of cylinders with a slant on a main shaft, the cylinder axes being parallel with the main shaft. The connection is provided by means of claw-shaped crossheads gripping the slant, one crosshead for each piston rod. Between the crosshead and the slant a main thrust block and a back thrust block are placed eccentrically. The crosshead may pivot around its longitudinal axis and is provided with two thrust blocks of the Michell type, the centres of these two blocks being arranged in a plane perpendicular to the longitudinal axis of the crosshead and in the middle of the gap of the crosshead.