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JP4406787B2 |
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JP4327019B2 |
A reciprocating compressor includes :a low-pressure stage compression part (1) for compressing low-pressure working gas supplied from a supply source; two high-pressure stage compression parts (2;3) for compressing the working gas compre...
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JP4280317B2 |
A compressor, in particular for a vehicle air conditioning system, with a housing, which contains a device for conveying a compressed medium driven by a drive shaft, designed as an axial piston machine and having at least one piston reci...
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JP4159183B2 |
A gas ballast system for multistage vacuum pumps, e.g. for piston pumps and membrane pumps, has flow restrictions (10) to bleed gas into the connecting duct (5) between the pump stages and with another flow restriction (10') to bleed gas...
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JP4129684B2 |
The cylinders have pistons (21-24) fitted in the closed bore of cylinders and connected to same crankshaft (15). The pistons perform reciprocating slide motion in the bores of cylinders with rotation of crankshaft through the slider cran...
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JP2008163923A |
To prevent deterioration in viscosity of grease, prevent the volume of the grease from decreasing over time, reduce maintenance, and reduce maintenance costs in an oilless natural gas compressor using a bearing having the grease encapsul...
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JP4100511B2 |
A compressor that sucks refrigerant gas from an external refrigerant circuit, compresses the sucked refrigerant gas and discharges the compressed refrigerant gas, comprising a cylinder having a plurality of bores, a front housing coupled...
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JP2008075474A |
To provide a small size reciprocating compressor of a simple structure capable of providing high compression efficiency.One end of a connecting rod 3 is connected to a rotary plate 1a attached to a rotary shaft 1 via a crank pin 2. A cyl...
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JP4067572B2 |
PCT No. PCT/EP98/00288 Sec. 371 Date Jul. 26, 1999 Sec. 102(e) Date Jul. 26, 1999 PCT Filed Jan. 20, 1998 PCT Pub. No. WO98/39570 PCT Pub. Date Sep. 11, 1998A vacuum pump, comprising at least one pump chamber (7, 8, 23 to 26) and at leas...
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JP2008002449A |
To provide a small size, light weight and low cost compressor capable of greatly increasing compression efficiency by performing double stage compression in one cylinder.Two or more pistons 2, 5 are used in one cylinder 1 when gas is com...
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JP3984146B2 |
The apparatus includes a cylinder (130) set between reciprocating motors (121,122) within a casing (110). The cylinder forms a compression space (S1) having suction side and discharge side alternately opened or closed by a suction valve ...
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JP3982697B2 |
A compressor that inhales refrigerant gas from an external refrigerant circuit, compresses the inhaled refrigerant gas and discharges the compressed refrigerant gas, comprising a cylinder block having a plurality of bores, and a suction ...
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JP3928336B2 |
To improve joint strength between a head body part and blocking members manufactured by die casting. A material for manufacturing a single head piston is provided with a body member 162 and the blocking members 164. The body member 162 a...
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JP3896822B2 |
To provide a swash plate type compressor capable of improving sealing performance by separately supplying oil included in refrigerant gas to a sliding surface of a rotary valve and a housing, that is, a clearance part of the rotary valve...
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JP3872249B2 |
To apply a hermetic compressor to a multi-pressure refrigerating system, to improve in efficiency, reduce in consumption power, and improve in reliability. A motor 30, a first compression element 31, and a second compression element 32 a...
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JP3844359B2 |
PCT No. PCT/CH95/00258 Sec. 371 Date Jul. 10, 1996 Sec. 102(e) Date Jul. 10, 1996 PCT Filed Nov. 9, 1995 PCT Pub. No. WO96/15367 PCT Pub. Date May 23, 1996The device permits the precise guiding and centering of machine elements, for exam...
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JP3789691B2 |
To prevent the inner surfaces of a cylinder from being worn by forming a plurality of labyrinth grooves in the peripheral surface of a piston and chamfering the corners of the opening end parts of the labyrinth grooves. A plurality of la...
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JP3688228B2 |
To provide a shaft extension mounted to a crankshaft for enabling the crankshaft of an electric motor driven air compressor to be extended axially for engagement with an outer rotary bearing. The electric motor driven air compressor 10 i...
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JP2005163790A |
To provide a pump supplying high concentration compressed fluid, a pump lowering the temperature of the compressed fluid, and a pump supplying continuous flow of the compressed fluid.This multi-directional pump comprises a housing with a...
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JP2005511941A |
A vapor-compression distiller includes a rotary heat exchanger. A reciprocating compressor (26) maintains a pressure difference between the compressor's evaporation chambers (46) and its condensation chambers (44). The compressor is asse...
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JP3640412B2 |
PURPOSE: To perform stable operation of a heat pump unit by preventing a high load from being exerted on an electric motor. CONSTITUTION: In a piston pump unit 10 wherein a reciprocating pump comprises an electric motor 11 having a drive...
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JP2005083198A |
To provide a two-cylinder enclosed rotary compressor with high reliability, in which noise can be reduced by damping the pressure pulsation component of a refrigerant compressed in a cylinder in mutually independent passages, oil dischar...
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JP3627358B2 |
A single headed swash plate type compressor including, a housing with a crank chamber and cylinder bore, pistons arranged in cylinder bores, and a swash plate driven by a drive shaft. Each of the pistons has at one end thereof a bearing ...
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JP2005506489A |
Motor-driven compressor-alternator unit including pistons. Each piston has a large diameter portion and a smaller diameter portion extending from the large diameter portion. The large diameter portion slides within a first cylinder and p...
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JP2005049087A |
To provide a transcritical refrigeration cycle improved in system efficiency on condition that an additive capability generated is larger than an increase in power requested to produce sub-cool.A refrigerant is compressed in a compressor...
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JP2005504927A |
A medium and high pressure pump systems supplies a cryogenic fluid from a storage tank. The system comprises a pump that is operable to pump cryogenic liquid or a mixture of cryogenic liquid and vapor. The pump preferably comprises an in...
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JP2004360701A |
To provide a linear compressor capable of discharging the fluid upon compressing step by step in a plurality of compression chambers.The linear compressor is equipped with a stationary cylinder furnished on one side with a discharge part...
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JP2004530824A |
The invention relates to a dry-running piston compressor, in particular for rail vehicles. Said compressor comprises a crankcase ( 3 ) for a crankshaft ( 15 ) that is rotatably mounted in said crankcase, the latter being provided with at...
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JP2004527692A |
The present invention is a multi-stage piston vacuum pump (1), which is arranged corresponding to an inflow portion (71) and an outflow portion (70), at least one piston pair (2,3), and an end face of the piston. Each compression stage h...
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JP3561567B2 |
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JP3541961B2 |
PURPOSE: To reduce the generation of composite noise in addition to reduction of incurring of a suction pressure loss and the occurrence of excessive compression by a method wherein one of a valve seat surface and a lead valve is covered...
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JP2004144088A |
To provide a multistage piston vacuum pump that is formed so as to allow all the stages to be usable, so that pump characteristics are improved and effective exhaust becomes possible at each stage of an exahsut process.The pump is compri...
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JP2004514089A |
A multistage piston compressor and a method for cooling of an electrical motor for a multistage piston compressor. Conventional piston compressors produce a high part of heat dissipation. This influences negatively the energy balance of ...
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JP2004116329A |
To actualize a small and compact reciprocating compressor for compressing hydrogen used for a fuel cell vehicle.A reciprocating compressor 101 comprises: a crankshaft 2; a connecting rod 3 whose one end is connected to the crankshaft; a ...
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JP3503154B2 |
PURPOSE: To prevent any possible seizure or binding in a sliding-contact part between a shoe and a swash plate from occurring in a yet more accurate manner by reforming both of them in terms of configuration. CONSTITUTION: A shoe has a s...
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JP3475024B2 |
To improve C.O.P. by making the dimension of a clearance between an upper cylinder and an upper vane and between the upper cylinder and an upper roller larger than the dimension of a clearance between a lower cylinder fixed on the upper ...
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JP3473774B2 |
PURPOSE: To protect bearing elements and reduce vibration and noise by fitting the lug plate of a compressor in the aligning floatable state to a driving shaft. CONSTITUTION: A variable displacement compressor is provided with a front ho...
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JP3438449B2 |
To suppress the decrease in a life for a thrust bearing by a method wherein a load executed on the thrust bearing is reduced. The sectional area on the operation chamber 39 side, formed on the external drive source side (the shaft seal 1...
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JP3416738B2 |
To provide a variable displacement swash plate compressor easy in structure and working and capable of preventing torsion and bending moment of a swash plate. This compressor includes a swash plate 34 which is slidably fitted on a drive ...
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JP2003161258A |
To sufficiently improve compressing efficiency while satisfying demands such as miniaturization and cost reduction.A cylinder 11 and a piston 12 are formed into bottomed cylindrical shapes, the piston 12 is fitted from a bottom side of t...
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JP2003518228A |
A dry compressing vacuum pump (1) has a continuous or graduated inner compression. A gas ballast device (8) selectively adds a ballast gas to a pumped gas. The gas ballast device has an isolating valve (11), a non-return valve (12) which...
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JP2003517133A |
The invention relates to a compressor system for production of compressed air, consisting of a compressor driven by an internal combustion engine, connected by piping to compressed air discharge points and supplied with precompressed air...
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JP2003503640A |
The two cylinder and piston systems (1, 3), operating in series, are driven by a crankshaft, with a minimum or even zero phase difference.
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JP2002303268A |
To provide a multicylinder compressing device capable of increasing a gas inflow into a housing without enlarging a suction opening of a bearing plate.A plurality of suction openings 12a are circumferentially provided with certain interv...
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JP3331582B2 |
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JP3331489B2 |
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JP2002531773A |
A reciprocating compressor capable of producing a steady-state, continuous, non-pulsing outflow at volumes less than 25 gallons per hour. The compressor utilizes at least two pistons driven in a near axial manner with any lateral forces ...
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JP2002250275A |
To realize a small size of dimension in a direction perpendicular to a longitudinal direction of a shaft in a compressor reciprocating a piston.A radial component alone of a shaft 105 of a motion transmitted from a rotation member 109 ro...
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JP2002031061A |
To solve the problem of a rotary shaft member driven by an electric motor which has possibility to cause vibrations and swinging during rotation, and rotor rubs the stator which may extent a bad influence upon the motor operation because...
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JP3236253B2 |
To adjust the capacity of a compresser in plural stages by comprising a group of the first and second compressing cylinders respectively composed of two compressing cylinders, and opening and closing the first and second cylinder passage...
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