Match Document Document Title
6053091 Plunger pump  
A plunger pump comprising a plunger pump section (34) including a pumping chamber (60), a plunger (36) extending through the pumping chamber, a high pressure side-seal (58) and a low pressure...
6050783 Reciprocating compressor in which a blowby gas can be returned into a suction chamber with a lubricating oil within a crank chamber kept at a sufficient level  
A plurality of cylinder bores are circumferentially formed in a cylinder block around its center axis to receive a plurality of pistons, respectively. The cylinder block has one end closed by a...
6048178 Compressor  
A compressor has a control valve that adjusts the pressure difference between a crank chamber and a cylinder bore for controlling the inclination of a drive plate. The control valve protrudes...
6048176 Regulating device for a hydrostatic positive displacement unit  
A regulating device for a hydrostatic positive displacement unit, such as an axial piston machine employing the swash plate principle, includes a control valve which pressurizes a regulating...
6045342 Refrigerant compressor  
A compressor has a cylinder bore in a housing. The cylinder bore receives gas from a suction port and discharge the gas out of the compressor through a discharge port. A suction valve is provided...
6038960 Reciprocating pistons of piston-type compressor  
A piston-type fluid displacement apparatus includes a housing enclosing a crank chamber, a suction chamber, a suction chamber, and a discharge chamber. The housing includes a cylinder block...
6036448 Fuel pump sealed in a bellows  
A piston-type fuel pump has two or more cylinder bores in a barrel. A piston in each cylinder bore has a port for admitting fuel into the cylinder bore. A swash plate assembly includes a wobble...
6030184 Housing construction for reciprocating piston type compressor  
A compressor is described having a pair of casings fastened together by a plurality of bolts. A piston is located for reciprocation within a cylinder bore formed in the casings. A cam plate is...
6026731 Compressor for automotive air-conditioning system  
A compressor, which is adapted for use in an air-conditioning system of a motor vehicle, having a housing (2) and a compressor unit (1) arranged in the housing (2) for drawing in and compressing a...
6024541 Hydraulic axial piston pumps  
A hydraulic axial pump/motor comprises a plurality of revolving as well as reciprocating pistons, operatively associated with a stationary port plate. The port plate comprises at least a first,...
6022198 Twin pump with a charging pump  
PCT No. PCT/EP96/03562 Sec. 371 Date Feb. 6, 1998 Sec. 102(e) Date Feb. 6, 1998 PCT Filed Aug. 12, 1996 PCT Pub. No. WO97/13065 PCT Pub. Date Apr. 10, 1997A double pump unit including two...
6022199 Reciprocating compressor  
A reciprocating compressor is provided. Compression chambers are formed on at least one end of pistons slidably received within respective cylinder bores of a cylinder block. A cylinder head is...
6019027 Refrigerant compressor  
A refrigerant compressor is provided. A cylinder block has a plurality of cylinder bores axially formed therethrough. A plurality of pistons are slidably received in the cylinder bores,...
6012905 Suction and discharge valve mechanism for fluid displacement apparatus  
A piston-type fluid displacement apparatus includes a housing enclosing a crank chamber, a suction chamber, and a discharge chamber. Discharge conduits are formed at a top dead center position of...
6012906 Uniform speed joint and axial piston pump using the joint  
A uniform speed joint has three or more drive pins one side ends of which are concentrically arranged in one side face of either one of a driving member and driven member, and the other ends of...
6010314 Swash-plate compressor having a capacity control valve on the oil return passageway adjacent an oil separator  
A compressor having an oil separator at a shell portion of a housing of the compressor. The oil separator is constructed by a front part 61 integral to a front housing 11 and a rear part 62...
6010313 Single-headed piston type compressor  
A compressor includes pistons slidably accommodated in cylinder bores. A head and a skirt are formed at the ends of the piston. The head has a peripheral surface that always contacts the inner...
5997257 Refrigerant compressor  
A refrigerant compressor has a first high pressure chamber formed in the rear head, a second high pressure chamber formed on the outer peripheral surface of the cylinder block, and a discharge...
5988987 Method for merging and/or ratio blending aliquant  
A method for merging and/or ratio-blending aliquants from two different streams in a first channel, and utilizing a second channel to propel merged and blended aliquants through a separate, pumped...
5983781 Sliding bearing with self-adjusted load bearing capacity  
A sliding bearing, particularly for slippers of hydrostatic piston machines, with a support having a supporting surface on which slides a sliding piece having a sliding and sealing surface....
5984643 Variable capacity swash-plate-type refrigerant compressor  
A variable capacity swash-plate-type refrigerant compressor incorporating therein single-headed pistons reciprocating in the cylinder bores to compress refrigerant gas, a drive shaft rotatably...
5983776 Two-piece slipper with balanced running face  
A hydraulic slipper includes a slipper body having first and second ends and a central portion therebetween. The first end terminates in a spherical-shaped head. The second end terminates in a...
5983780 Multiple piston swash plate type of compressor including different dead volumes of the cylinder bores by the use of different length pistons  
A compressor includes front and rear cylinder blocks, a drive shaft rotatably supported by the cylinder blocks, a swash plate mounted on the drive shaft, a plurality of cylinder bores defined in...
5975863 High pressure water pump system  
A high pressure water pump system, including a motor (20), an intermediate flange (30) and an axial drive water pump (60) wherein the intermediate flange unites the motor and the high pressure...
5971717 Axial piston machine having a cooling circuit for the cylinders and pistons  
An axial piston machine having a housing (1) the interior housing chamber of which includes a leakage chamber (37) and accommodates a stroke disc (3) and a rotatably mounted cylinder drum (6)...
5970844 Cylinder sleeve assembly  
A cylinder sleeve is composed of multiple identical interlocking sleeve elements. Each sleeve element has a circular cylindrical portion and an integral circular arc portion tangent to the...
5967018 Hydraulic motor with radial propulsors retained against corresponding sliding-contact surfaces by resilient means and by mechanical-retaining means located outside said propulsors  
A hydraulic motor with propulsion members located between an eccentric cam associated with a shaft and a counter-element. The propulsion members consist of two elements slidable telescopically...
5960697 Axial piston machine  
An axial piston machine comprises first and second members arranged so that one of the first and second members is swingable relative to the other to provide relative swinging motion, a plurality...
5957666 Tandem-type pump having an auxiliary pump  
A tandem-type pump assembly having a first housing and a second housing. A first main pump and a second main pump are coaxially aligned and disposed in the first housing. A first driving shaft...
5953979 Variable capacity wobble plate compressor  
A variable capacity wobble plate compressor includes a first spring, fitted on a drive shaft between a hinge ball axially slidably fitted on the drive shaft and a thrust flange rigidly fitted on...
5950520 Swash plate compressor  
A swash plate compressor includes a plurality of shoes each arranged on a sliding surface of a swash plate, for relative rotation with respect to a circumference of the swash plate as the drive...
5947698 Piston type compressor  
An improvement of a piston type compressor is disclosed. The compressor has a cylinder block that includes a plurality of cylinder bores and a plurality of suction passages. Each of the suction...
5947003 Hydraulic piston machine with friction-reducing layer on the cylinder and the cylinder bearing  
A hydraulic piston machine is disclosed, having a piston arranged to move back and forth in a cylinder body. In such a machine it is desirable to be able to achieve a longer service life, even...
5943941 Reciprocating compressor  
A compressor has pistons slidably housed in cylinder bores. Respective shoes slide against each of the pistons and a swash plate or cam to convert rotation of the swash plate to reciprocation of...
5941156 Fluid communication valve for high and low pressure ports of a differential hydraulic motor  
A differential hydraulic motor comprises a swash plate joined to an output shaft, and a cylinder block joined to an input shaft. A change-over valve is provided which changes over according to the...
5941693 Swash-plate compressor with grooves for lubricating oil  
A swash-plate compressor having at least one groove formed on the inner wall surface of the housing, or at least one groove provided on the peripheral wall surface of the cylinder block. The...
5937731 Variable capacity swash plate compressor  
A swash plate of a variable capacity swash plate compressor has a front-side sliding surface and a rear-side sliding surface. Pairs of substantially hemispherical shoes each perform relative...
5934172 Swash plate type compressor having an improved piston rotation regulating-structure  
In a swash plate type compressor in which a piston (60) is reciprocated in accordance with a rotary motion of a swash plate and is located within a housing (2) having an inner periphery (2a), the...
5934170 Piston mechanism of fluid displacement apparatus  
A piston-type fluid displacement apparatus includes several pistons, each of which is slidably disposed within one of several cylinder bores. A plating layer, which includes a self-lubricating...
5931644 Precision demand axial piston pump with spring bias means for reducing cavitation  
A precision demand axial piston pump with at least one spring for reducing cavitation. The pump includes a drive shaft driven to rotate about a drive axis of rotation. A cylinder block is...
5931645 Multistage swash plate compressor having two different sets of cylinders in the same housing  
A multistage compressor for compressing a refrigerant for an automobile air conditioning system includes a body which has a front housing and a rear housing connected to each other with a cylinder...
5921756 Swash plate compressor including double-headed pistons having piston sections with different cross-sectional areas  
A swash plate type compressor having pistons, each defining on opposite sides compression chambers 38 and 39. The cross sectional area of the operating chamber 39 located adjacent the driving...
5918529 Hydrostatic axial piston machine utilizing bridge segments which are radially inward of the piston bores  
A hydrostatic axial piston machine with a swash plate achieves a high power with a compact and simple construction. Two cylinder drums are at some axial distance from one another and are in...
5915928 Compressor having a swash plate with a lubrication hole  
An improved lubricating structure of a compressor is disclosed. A swash plate is tiltably supported on the drive shaft for an integral rotation therewith. A plurality of pistons are operably...
5899670 Integrated muffler structure for compressors  
A compressor having a housing formed by joining a plurality of housing components. A plurality of muffler elements are formed integrally with the housing components along the periphery of the...
5897298 Variable displacement swash plate type compressor with supporting plate for the piston rods  
A variable displacement swash plate type compressor has a plurality of cylinders circumferentially arranged in a casing thereof. It includes a device for achieving a smooth axial movement of each...
5896803 Shoe for swash plate compressor  
In a shoe 5 for a swash plate compressor, the conical tapered surface 13 is formed between the spherical surface 10 and the rounded edge 14 to converge toward the spherical surface 10 inside an...
5894783 Hydrostatic transmission swash plate assembly  
A swash plate assembly for use in connection with a hydrostatic transmission. The swash plate assembly comprises a thrust bearing and a swash plate formed as a net shaped part from a plastic...
5893706 Cooling structure for compressor  
A compressor having a compression mechanism within a housing for compressing a refrigerant gas according to the rotation of a rotary shaft operatively connected to an external power source. A...
5890878 Valve structure in compressor  
A compressor comprises a plurality of compression chambers used for compressing gas. A gas chamber includes one of a suction chamber for supplying the gas to the compression chambers and a...