Class 74/839 - Axial-type cam (e.g., wabbler type)

Subclass of Class 74 - Machine element or mechanism
Definition: Mechanisms having a rotating or oscillating cam which causes
No. of patents: 24
Last issue date: 12/26/2006

Number	Title	Issue Date
7153105	Compressor with swash plate housing inlet port A compressor is disclosed generally comprising a cylinder block at least partially enclosing a compression chamber, a swash plate housing mounted adjacent the cylinder block, the swash plate housing at least partially enclosing a swash plate chamber, an inlet port i...	12/26/2006
7100564	Variable angle cam-drive engine and a power conversion mechanism for use therein A variable angle cam-drive engine in which the torque output generated at a given engine speed (as represented by, for example, piston reciprocation frequency) can be varied by changing the operating angle of cam mechanisms in a power conversion mechanism of the eng...	09/05/2006
7011469	Piston joint A joint for positioning between first and second elements includes an outer member and an inner member. The first and second elements are arranged for linear motion along a common axis. The outer member is configured for movement relative to the first and second ele...	03/14/2006
7007589	Piston assembly A hydraulic pump includes a housing, at least two pistons mounted to the housing to rotate relative to the housing, and a transition arm coupled to each of the pistons to rotate therewith. The transition arm is set at a predetermined angle relative to a longitudinal...	03/07/2006
6968751	Axial piston machines This invention relates to internal combustion engines with cylinders arranged parallel to the main shaft and where reciprocating movements of the pistons are converted to rotation by means of a Z-crank mechanism and motion converter, or conversely to systems such as...	11/29/2005
6938589	Variable displacement engine An internal combustion engine having at least one piston with an adjustable stroke length. The engine includes a connecting rod attached to the piston and a crankshaft. The crankshaft has a journal portion that extends along a length that is non-perpendicular to a m...	09/06/2005
6928919	Wobble plate piston mechanism In a wobble plate piston-drive mechanism, the inclination of the ring-shaped wobble plate is adjustable through an articulated connection of the wobble plate to the shaft by means of an axially movable guiding device and a driver arm that reaches into an engagement ...	08/16/2005
6925973	Piston engine assembly A variable compression piston assembly includes a plurality of pistons, a transition arm coupled to each of the pistons, and a rotating member mounted for pivoting movement to slide along an axis of the drive member. Movement of the rotating member relative to the d...	08/09/2005
6915765	Piston engine assembly A variable compression piston assembly includes a plurality of pistons, a transition arm coupled to each of the pistons, and a rotating member mounted for pivoting movement to slide along an axis of the drive member. Movement of the rotating member relative to the d...	07/12/2005
6913447	Metering pump with varying piston cylinders, and with independently adjustable piston strokes A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cyli...	07/05/2005
6823768	Nitrided surface layer on a swash plate boss A swash plate for a swash plate-type, variable displacement compressor, such that the compressor is driven by a drive shaft having a shaft axis. The swash plate includes a boss that is penetrated slidably by the drive shaft. The boss is connected slidably to a rotor...	11/30/2004
6629488	Method and apparatus for controlling axial device A control system, method and apparatus are provided in which a wobble plate assembly is adjustably mounted on a piston and cylinder stroke control assembly. The wobble plate assembly is adjustable through various positions relative to the base, thus provi...	10/07/2003
6474183	Variable-displacement inclined plate compressor A variable-displacement inclined plate compressor includes a drive shaft, a rotor provided on the drive shaft, and an inclined plate provided around the drive shaft and rotated synchronously with the drive shaft via the rotor. The compressor comprises a c...	11/05/2002
6162025	Variable displacement swash plate type compressor In a variable displacement swash plate type compressor, a drive shaft is installed in a case to rotate about its axis. A generally spherical sleeve is axially slidably disposed on the drive shaft, a journal is disposed on the sleeve, and a swash plate is ...	12/19/2000
5850775	Pump piston The invention relates to an axial piston pump with at least one pump element, which includes a piston disposed in a housing, with a drive shaft upon which a swash plate for driving the piston is disposed. The swash plate is non-rotatably fixed, but can pi...	12/22/1998
5513553	Hydraulic machine with gear-mounted swash-plate The disclosure is directed primarily to pairs of unique nutating gears which are used for restraining the rotation of the wobbler portion of the split swash-plates of both variable- and fixed-displacement hydraulic machines in which the pistons reciprocat...	05/07/1996
4994004	Electric actuator for swashplate An actuating mechanism for controlling the swashplate angle in a Stirling cycle engine or other engine having parallel reciprocating pistons. The actuation system uses an electric motor for changing swashplate angle. Various embodiments for gear trains fo...	02/19/1991
4825753	Cam plate type axial piston pump 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...	05/02/1989
4815327	Rotary barrel machine with pistons and fixed centering pivot 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...	03/28/1989
4779880	Four-wheel steering system in wheeled vehicle A four-wheel steering system in a wheeled vehicle the front wheel steering mechanism of which is drivingly interconnected to a rear wheel steering mechanism to steer the rear road wheels in either the same or the opposite direction as the front road wheel...	10/25/1988
4495947	High speed medical ventilator A swash plate assembly converts rotary motion to reciprocatory motion to reciprocate a diaphragm in a high frequency medical ventilator; the motor which drives the assembly is pivotally mounted for variation of the stroke of reciprocation thereby varying ...	01/29/1985
4433596	Wabbler plate engine mechanisms The invention relates to wabbler plate engine mechanisms. One such mechanism has a wabbler plate rotatably mounted on a wabbler carrier which is in turn inclinably mounted on a crankshaft in a crankcase. The wabbler plate has a plurality of arms which are...	02/28/1984
4294139	Drive for a machine comprising variable-stroke reciprocating pistons A drive comprising a rotatably journalled shaft on which a plate is mounted so that the plate cannot rotate with respect to the shaft during operation. The plate can, however, be adjusted around a pin which extends transverse to the rotatably journalled s...	10/13/1981
4258590	Wobble plate control for a variable piston displacement machine A variable angle wobble plate drive for varying piston displacement has constant velocity coupling from the wobble plate to the frame which permits all axis-dynamic balancing. The coupling uses an idler element rotating on a tilted axis portion of the sha...	03/31/1981

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Class 74/839 - Axial-type cam (e.g., wabbler type)