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4342544 Reciprocating pump  
A reciprocating pump comprising several pumping volumes formed by cylinders fixed to a frame in an axial piston arrangement, and by pistons capable of sliding in the cylinders under the action of a...
4329913 Structure of a shoe for a swash plate type compressor  
A round plate shape shoe for incorporation into a swash plate type compressor as an operative engaging element intervened between a rotatable swash plate and a reciprocal piston is structured to...
4326838 Swash plate type compressor for use in air-conditioning system for vehicles  
A swash plate type compressor for use in an air-conditioning system for vehicles. The compressor has a pair of cylindrical cylinder blocks which are disposed in axial alignment and contact with...
4321019 Swash plate type compressor  
In a swash plate type compressor, an oil separating chamber is arranged in the course of the flow of coolant gas from an inlet to a low pressure chamber. An oil accumulating chamber is formed...
4307998 Swash-plate-type compressor for air-conditioning vehicles  
Shoes for operatively connecting a swash-plate with the compression pistons of a swash-plate type compressor are made from a novel Cu-based alloy. Improved shoes are characterized by a combination...
4301716 Refrigerant compressor units  
In a refrigerant compressor unit of a type in which the reciprocating movement of pistons is caused by the nutation of a non-rotatably but nutatably supported wobble plate driven by a cam rotor....
4299543 Swash plate compressor  
A circular cylinder (12) is formed with a plurality of bores (18), (19), (21), (23) in which double acting pistons (33) are slidably disposed. A diagonally oriented swash plate (24) reciprocates...
4297085 Guide mechanism for compressor socket plate  
A variable output axial compressor having an improved socket plate guide mechanism. A spherical bearing body is reciprocally supported on a guide rod which extends axially through the compressor...
4290345 Refrigerant compressors  
A refrigerant compressor comprising a balance hole communicating between a crank chamber and a suction chamber for returning the blow-by gas in the crank chamber to suction chamber, is provided...
4283997 Refrigerant compressors  
A refrigerant compressor unit which includes a balance hole communicating between the crank chamber and the suction chamber for returning blow-by gas in the crank chamber to the suction chamber....
4283166 Fluid suction and discharge apparatus  
A single metal sheet suction reed valve member having a plurality of radial outwardly extending reeds which is held between a cylinder block having a plurality of axial cylinders in spaced annular...
4275998 Piston pump  
An improved hydraulic piston pump of the kind provided with a tilting disk (22) which controls the displacements of the pistons (11). The improved pump has a compact construction and thus a low...
4274813 Swash plate type compressor  
In a swash plate type compressor, a partition plate member is located in a high pressure chamber of the compressor housing and divides the high pressure chamber into a plurality of small rooms...
4266913 Swash-plate type compressor  
An improved swash-plate type compressor including a pair of thrust bearings interposed between the swash plate and central seat portions provided on the cylinder blocks forming the outer frame of...
4264283 Pump for liquids  
A pump for liquids including a rotor containing bores housing slidable pistons. A stroke member is associated with the pistons and constraining the pistons, when the rotor rotates, to orbit about...
4260337 Swash plate compressor  
A drive shaft (17) is rotatably supported in a cylinder (12) by means of bearings (28), (29). A swash plate (24) fixed to the shaft (17) causes a piston (33) to reciprocate in a bore (18), (23) of...
4236878 Lubrication system for compressor unit  
A lubrication system for a compressor unit includes a deflector depending from the inner wall of the compressor housing for directing the oil on the inner wall through a passageway of the front...
4235116 Balanced variable wobble plate drive  
A wobble plate drive mechanism for machines having axial pistons or the like clustered about a shaft. The moving parts are dynamically balanced over a range of wobble plate tilt angles by a balance...
4231713 Compressor modulation delay valve for variable capacity compressor  
A modulation delay valve for a variable capacity compressor operative to prevent the premature reduction of the pumping capacity of the compressor. A compressor suction chamber pressure sensing...
4229145 Swash plate compressor  
The bottom portion of a swash plate extends into oil in a sump to splash oil onto the remainder of the swash plate and the members connecting the swash plate to pistons. The splashed oil is...
4226572 Valve assembly for a multi-cylinder swash plate type compressor  
A valve assembly, for a multi-cylinder swash plate type compressor, which includes a gasket means made of a metallic plate and coated, on both faces thereof, with a resilient film, such as a rubber...
4221545 Support mechanism of a wobble plate in a compressor unit  
A noiseless supporting mechanism of a wobble plate in a compressor unit of the wobble plate type comprises a support member having a spherical convex surface at its end. The support member is...
4221544 Refrigerant compressor  
A refrigerant compressor for effecting successive compression and exhaust strokes by the reciprocating action of a piston driven by an inclined oscillating plate. A rotor chamber communicates with...
4195970 Piston pump with planetary gear drive  
A pump having a planetary gear drive connected to a source of rotary power drives a barrel cam to reciprocate, with a smooth cycloidal motion, a series of pistons operatively connected to the cam....
4188859 Fluid drive mechanisms and methods  
A fluid driven mechanism in the form of a fluid motor or fluid pump which is transmissionless, wherein speed and power are selectively varied by the operator through corresponding adjustment in the...
4178136 Guide shoe members for wobble plate compressor  
A guide rod, with a ball on its free end, extends radially from a compressor wobble plate with the ball and rod being positioned for longitudinal and arcuate travel in a guide slot of the...
4178135 Variable capacity compressor  
A controlled, variable displacement swash plate compressor is provided with means for controlling the capacity pivoting the swash plate about the drive shaft axis to vary the effective pumping...
4175915 Drive shaft lug for variable displacement compressor  
An improved drive lug and shaft through bore structure for use with a wobble plate compressor, the output of which is modulated in response to refrigeration requirements by varying the piston...
4171933 Pumping mechanism  
A cam-controlled pumping mechanism operating a piston pump for drawing fluid into the pump during a charge cycle, and pushing the fluid out of the pump during a discharge cycle includes an...
4155683 System for and a method of providing a liquid chromatography eluent  
A system for and a method of providing an eluent composed of two different kinds of liquids being mixed at a set concentration and further a time varying concentration or mixing ratio, comprising...
4138203 Swash plate compressor  
A compressor or pump or motor-type structure having a housing with a bank of cylinders and a shaft journalled for rotation therein and fitted with a swash plate, sometimes referred to in the art as...
4105370 Variable displacement compressor with three-piece housing  
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...
4105369 Two-stage pump  
A two-stage pump having a low and high pressure stages having a casing with a pair of pumps positioned therein, with one pump being a low pressure stage unit and the other pump being a high...
4095921 Multi-cylinder compressor having spaced arrays of cylinders  
A multi-cylinder compressor of the type suitable for use in a vehicle air-conditioning system includes a pair of axially spaced cylinder blocks for receiving a refrigerant fluid therein for...
4090430 Swash plate type compressor  
A swash plate type compressor to provide reciprocation of cylindrical guide members arranged around a driving shaft axis and a corresponding number of pistons respectively connected to the...
4077269 Variable displacement and/or variable compression ratio piston engine  
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...
4072444 Axial piston pumps  
The invention pertains to improvements to axial piston pumps of the type comprising, in combination, at least a plurality of annularilly distributed pistons housed in cylinders of a fixed block and...
4070136 Apparatus for lubricating a swash plate compressor  
A multi-piston swash plate type compressor, in which there is provided an improved internal arrangement for lubricating internal moving elements, especially steel ball bearings and shoes connecting...
4061443 Variable stroke compressor  
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...
4043209 Hydrostatic bearing lubrication system  
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...
4042309 Refrigerant compressor  
A refrigerant compressor in a wobble type suitable for air-conditioning systems for automobiles, in which pistons are reciprocated within respective cylinders by a wobble plate member driven by a...
4037522 Vehicle air conditioning compressor  
A vehicle air conditioning compressor which is driven by e.g., the prime mover of the vehicle as required to cool the passenger compartment comprises a swash plate mounted on a rotatable shaft and...
4030404 Swash-plate drive mechanism  
A device comprising at least three reciprocable piston-shaped bodies, each of which is provided with a drive rod which cooperates, via a drive rod head accommodating sliding bodies, with a plate...
4019342 Compressor for a refrigerant gas  
A compressor for a refrigerant gas wherein a rotor acts on a rocking plate to effect rocking thereof and reciprocation of pistons in cylinder bores to produce suction and exhaust strokes for...
4011029 Fluid suction and discharge apparatus  
A fluid suction and discharge apparatus of a small volume suitable for a fluid compressor which can be used for an air-conditioning system, which includes a cylinder block having a plurality of...
4007663 Hydraulic pump of the axial piston type  
A hydraulic pump of the axial piston type comprising check valves each of which is adapted to open and allow the associated cylinder to discharge fluid when the pressure inside the cylinder has...
4005948 Lubrication system for compressor unit  
A lubrication system for use in a compressor unit includes a deflector projecting from the inner wall of the compressor housing which collects lubricating oil splashed onto the housing wall and...
4003219 Hydraulically operated retractable spindle  
A retractable spindle for connecting a drive to a driven instrumentality, such as a roll. The spindle includes an axially movable shaft which has self-contained hydraulic means for moving it...
4003680 Swash-plate compressor  
A swash-plate type compressor is provided with an improved internal arrangement for lubricating internal moving elements, such as bearings, pistons and shoes wherein a passage is provided for...
3999894 Compressor assembly  
A reciprocating piston assembly for a compressor is disclosed in that a piston with at least one groove formed in its outer surface is slidably mounted in a cylinder bore and at least one piston...