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Class 417/242 - POSITION RESPONSIVE BYPASS BETWEEN PLURAL PUMP CHAMBERS


Subclass of Class 417 - Pumps
Definition: Apparatus comprising two or more pump chambers there being
No. of patents: 7
Last issue date: 08/16/2005


NumberTitleIssue Date
6929455Horizontal two stage rotary compressor
A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are ro...
08/16/2005
6374612Interstage cooling of a multi-compressor turbocharger
An interstage cooling system for the turbocharger of an internal combustion engine is disclosed. Diffuser vanes, turning vanes and/or deswirling vanes are used as the heat exchangers in the interstage duct. A coolant fluid is supplied to the heat exchange...
04/23/2002
5380163Gas guiding mechanism in a piston type compressor
A piston type compressor is disclosed, which comprises a cylinder block having axial cylinder bores, pistons defining compression chambers in the bores, a drive shaft, and a gas suction and discharge chambers in a housing. A valve receiving chamber is for...
01/10/1995
5366350Gas guiding mechanism in a piston type compressor
A piston type compressor is disclosed, which includes pistons disposed in bores of a cylinder block, to be reciprocated by a piston driving mechanism in cooperation with a drive shaft. A valve receiving chamber is formed around the drive shaft in the cyli...
11/22/1994
4492529Compressors efficiency improvement
The cylinder of a reciprocating compressor is provided with a flanged collar defining an annular recess adjacent the side walls of the cylinder bore disposed for entry of the piston skirt during the downstroke into the recess, compressing gas therein. Com...
01/08/1985
4102608Reciprocatory piston and cylinder machines
Vacuum pump of reciprocating piston and cylinder type. Cylinder is stepped to have front large diameter portion and rear small diameter portion. Piston has enlarged head portion sliding in front portion of cylinder and rear portion sliding in rear portion...
07/25/1978
4074668Discharge valve for injection pumps of internal combustion engines
A piston-type injection pump for supplying fuel through a discharge conduit to an injector of an internal combustion engine. The injection pump has a relief piston movable between an upstream and a downstream position in a sleeve. This relief piston limit...
02/21/1978
 
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