Rotary compressor with blind hole in end wall that aligns with b

Details Rotary compressor with blind hole in end wall that aligns with b Rotary compressor with blind hole in end wall that aligns with b

1984-10-15

1987-01-13

Smith, Leonard E.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Radially spaced grooves

418 82, 418268, F04C 1800

Patent

active

046361537

ABSTRACT:
A rotary compressor has a plurality of vanes which are slidably disposed in radial slots of a rotor to define fluid chambers in cooperation with a cylindrical housing. The radially innermost end of each vane, rotor and opposite ends of the housing define a back-pressure chamber which is supplied with a pressure during a suction stroke for maintaining the associated vane in sealing contact with the inner wall of the housing. Each of opposite ends of the housing has a unique configuration which damps the pressure in the back-pressure chamber when the chamber is fluidly isolated from a source of the pressure supply during a compression stroke, thereby eliminating excessive friction between the vane and the housing.

REFERENCES:
patent: 3865520 (1975-02-01), Kramer

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