Class 417/97 - Relatively movable chambers

Subclass of Class 417 - Pumps
Definition: Apparatus in which a plurality of chamber means are provided,
No. of patents: 3
Last issue date: 04/30/1996

Number	Title	Issue Date
5511389	Rotary compressor with liquid injection In a high side rotary compressor, liquid refrigerant is supplied to is to the compression chamber via a capillary tube and liquid injection port. The lubricant is delivered only after the suction port has closed and before chamber pressure exceeds the liq...	04/30/1996
4209982	Low temperature fluid energy conversion system A low temperature fluid energy conversion system in which at least two cylinders containing a working fluid which has been heated, for example by solar energy, are alternately supplied with a liquid expanding agent, preferably a hydrocarbon or a fluorocar...	07/01/1980
4032256	Centrifugal pump A pump for handling liquids laden with abrasive particles having impellers arranged in a counter-opposed manner on the pump shaft to rotate jointly with the latter. At the points of impeller mounting, the shaft has tapered surfaces whose apices face each ...	06/28/1977

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