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4586876 Inclined disc type fluid compressor  
A fluid compressor comprises a cylinder block, a driving shaft rotatably mounted in the cylinder block by means of thrust bearings and radial bearings, an inclined disk rigidly secured to the...
4584927 Swash plate mechanism, particularly for a pump drive  
A swash plate mechanism, especially for high power swash plate pumps, incorporating, inside a casing (2) bounded by two end walls (21, 22), a driving component (3) mounted so as to rotate about a...
4583921 Plunger pump  
A pump which operates with several plungers is described with the plunger preferably being actuated via an eccentric drive unit and, having regard to the particular volume of flow per unit time,...
4583922 Swash plate type compressor improved with elongated and tortuous input and output passage systems  
In an improved swash plate type compressor in which a first end block, holding a first valve plate against one end of the cylinder block, defines a first input plenum and an output plenum with...
4576616 Method and apparatus for concentrating oxygen  
In addition to oxygen concentrator apparatus utilizing two zeolite beds and alternating, pressure controlled pressurization and exhaust cycles, with a swash plate cylindrical pump having a pressure...
4570833 Pumping system  
A closed pumping system for containing and dispensing liquids such as liquid chemicals and the like. The system has a pump that is an integral part of the container and a driving mechanism for the...
4568252 Swash-plate type compressor  
A swash-plate type compressor having a housing, a drive shaft rotatably supported by the housing, a swash-plate slantly secured on the drive shaft, and a plurality of pistons fitted in a cylinder...
4565118 Axial cylinder machine  
An axial cylinder machine includes a shaft, journaled in one end of a housing to turn about its axis and a plurality of cylinders. A spider is mounted inside the housing by means of a main swivel...
4553903 Two-stage rotary compressor  
A two-stage rotary compressor makes use of a piston-vane arrangement where both stages are built end to end and where the same members (piston-vanes) work for both stages, the "axial pistons" of...
4544331 Swash-plate type compressor  
A pair of combined cylinder blocks which are horizontally disposed are formed with wall portions extending from the boss portions of the cylinder blocks to the bottoms thereof. The wall portions...
4540345 Precompression valve for hydraulic pumps  
A hydraulic pump for liquids of the type comprising a body, a cylinder rotor surrounded by and mounted in an external support, the body having an inlet port and an outlet port for the liquid to be...
4534710 Swash-plate-type compressor having suction and discharge damping chambers  
A multi-cylinder swash-plate-type compressor having a combined cylinder block closed on both axial ends by front and rear housings and provided therein with a reciprocative piston mechanism for...
4534271 Dual machine aggregates with a connection for a consumer of mechanical energy  
A two-machine aggregate, preferably a dual-pump aggregate, with two swash plate axial piston pumps arranged coaxially to each other back-to-back is provided, where an auxiliary shaft is provided...
4523898 Hydraulic wobble pumps  
An hydraulic wobble pump having an inlet passage extending inwardly from one end thereof through the central portion of said housing and opening into said wobble chamber. The inlet passage being...
4522112 Swash-plate type compressor having improved lubrication of swash plate and shoes  
Double-headed pistons received within cylinder bores in the cylinder block are in engagement with the swash plate via shoes and balls. The pistons each have its intermediate bridge portion formed...
4520712 Axial piston machine having a sealed bearing box  
A rotating drum-shaped cylinder block with pistons longitudinally displaceable in the cylinder bores is mounted in the housing of a reciprocating-piston pump of inclined-disc construction. The...
4516913 Multistage drum compressor  
A multistage drum compressor has its stage cylinders arranged in ascending order around the axis of a shaft which operates the various stage pistons and which rotates in a direction opposed to the...
4515531 Swash ring driven diaphragm pump  
A diaphragm pump includes a drive shaft (2), a hub-like bearing member (3) fastened thereto and a radial ball bearing whose inner race (4) is pulled over the bearing member (3), with the ball...
4505187 Reciprocating piston engine with swash plate mechanism  
A reciprocating engine, in particular for motor vehicles, incorporating a drive shaft, at least one pair of opposed pistons rigidly connected together by a rod, and a swash plate mechanism...
4495855 Reciprocating type oil-free gas compressor  
In an oil-free multistage gas compressor comprising cylinders, a plurality of compression pistons in respective cylinders and a transmission mechanism for reciprocating said compression pistons...
4494415 Liquid nitrogen pump  
A triplex plunger pump for liquid cryogen service includes a power end frame comprising a casing formed of welded plate sections and elongated tubular members interconnected to form a main bearing...
4480961 Swash plate type compressor with a malfunction detector  
A swash plate type compressor with a malfunction detector, the detector comprising a detected unit embedded in part of the outer periphery of the swash plate of the compressor and a detecting unit...
4470761 Swash plate type compressor  
A swash plate type compressor, having a swash plate fixedly and slantingly secured to a drive shaft and also secured to pistons in such a manner that the pistons reciprocate as the swash plate...
4457367 Downhole pump and testing apparatus  
The downhole pump of the present invention includes a piston housing with a plurality of piston assemblies disposed in the piston housing. Each piston assembly includes a piston reciprocatingly...
4444549 Refrigerant compressor  
A refrigerant compressor having pistons reciprocated in respective cylinders by a wobble plate driven by an input rotor which is secured on a drive shaft, in which improved refrigerant gas flow...
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...
4432702 Swash plate type compressor  
A multi-piston swash plate type compressor in which there is provided an improved internal arrangement wherein the suction passageway in which a refrigerant gas is introduced from the exterior of...
4432310 Parallel cylinder internal combustion engine  
The engine disclosed herein comprises a number of pairs of pistons, the two pistons in each pair acting in unison and the number of pairs being arranged parallel to each other and said pistons also...
4425837 Variable displacement axial piston machine  
A variable displacement axial piston machine is disclosed having a piston guide cylinder stationarily aligned with an axial working piston cylinder. A single-headed piston has a piston head at one...
4420986 Sliding shoe for a rotatable swash-plate type refrigerant gas compressor  
Disclosed is a sliding shoe for a rotatable swash-plate type refrigerant gas compressor. This shoe is slidably connected between a rotatable swash-plate and a ball rotatably engaged with a piston....
4416190 Seal for compressor  
A seal is provided which seals the junction between the cylinder block of a compressor and a cylinder head secured to an end of the cylinder block, which comprises a gasket interposed between the...
4415315 Swash-plate type compressor having an improved lubricant oil feeding arrangement  
In a swash-plate type compressor, a partition wall, which separates a suction passageway extending through the cylinder block and the valve plates from the swash plate chamber, has its lateral wall...
4413954 Swash-plate type compressor having pumpless lubricating system  
A swash-plate type compressor having a pair of passageways which each include a communication passage communicating a central opening formed in each of the valve plates mounted at opposite ends of...
4412787 Swash-plate type compressor having an improved lubricant oil feeding arrangement  
In a swash-plate type compressor, a refrigerant gas deflecting wall is formed in a suction passageway extending through the cylinder block and the valve plates, the deflecting wall extending...
4408962 Swash plate type compressor  
A swash plate type compressor comprising a plurality of cylinder bores and pistons, a swash plate chamber wherein a swash plate for reciprocating the pistons within the cylinder bores is fixed to...
4407638 Swash plate type compressor with silencer structure  
A swash plate type compressor including a partition plate mounted in a side cover for axially partitioning the interior of the side cover into two portions. One of said two portions interposed...
4401414 Swash-plate type compressor having a simple lubricant oil feeding arrangement  
A swash-plate type compressor is provided with an oil pumping chamber which communicates with a fluid pumping chamber within which fluid is compressed by a piston, and also provided with a...
4396357 Diaphragm pump with ball bearing drive  
A diaphragm pump comprising a supporting structure, a rotatable input member and first and second bearings mounted on the input member so that the rotation of the input member causes the second...
4393966 Operation control apparatus of a compressor  
An operation control apparatus is provided of a compressor having a rotary shaft which is rotated by a driving apparatus by way of a clutch. The operation control apparatus comprises a recess or...
4394110 Swash-plate type compressor  
A swash-plate type compressor is provided which includes a horizontally disposed cylinder block. The cylinder block has three cylinder bores axially extending through the cylinder block in a...
4392787 Diaphragm pump  
A diaphragm pump having a reciprocating piston, a rotatable cam canted and engaging the piston, and a diaphragm secured to a plunger stem by a screw rotatable relative to the stem. The plunger stem...
4392416 Swash-plate type compressor having low noise thrust bearings  
A swash-plate type compressor provided with a pair of thrust bearings arranged at opposite ends of the swash plate to support thrust loads caused by the swash plate. The thrust bearings each...
4392788 Swash-plate type compressor having oil separating function  
A partition member divides the interior of the rear cylinder head into a low pressure chamber and a high pressure chamber on one side of the partition member facing the valve plate and into an oil...
4379425 Double-acting piston for swash-plate type compressors  
A double-acting piston is provided which is slidably mounted within a cylinder bore formed within the framework of a swash-plate type compressor, for carrying out a fluid compressing action. The...
4373870 Variable capacity positive displacement type compressor  
A reciprocating piston swash plate refrigerant compressor is disclosed having a variable pumping capacity control arrangement wherein the pumping capacity is varied by effecting communication...
4365940 Rotary piston pump of axial type  
A rotary piston pump of the axial type with fixed cylinders wherein a flywheel of rotary drum shape is anchored to a driving shaft (1) coaxially, on the circular side of said wheel being engraved...
4360321 Multicylinder refrigerant compressor muffler arrangement  
A multicylinder refrigerant compressor is disclosed having double-ended pistons operating in aligned cylinder bores of a cylinder block to discharge refrigerant from the opposite ends thereof to...
4351227 Multicylinder swash plate compressor piston ring arrangement  
A compact lightweight multicylinder swash plate compressor is disclosed having a metallic double-ended piston with piston heads reciprocated in aligned metallic cylinder bores. Each piston head has...
4347778 Reversible fluid unit  
A reversible fluid unit which may be used as a motor, pump, brake or clutch. The unit has a plurality of sequentially inflatable diaphragms, to impart a rotative force to a plurality of roller...
4347046 Swash plate compressor  
A swash plate compressor of light weight construction having a cylinder block defining weight reducing tubular cylinder bore portions which form, with its outer shell, a low pressure gas upper...