Rotary compressor or rotary displacement pump

Details Rotary compressor or rotary displacement pump Rotary compressor or rotary displacement pump

1993-11-04

1995-08-22

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, F25B 900

Patent

active

054429234

ABSTRACT:
A rotary fluid displacement machine includes a stator having a wall provided with an inner wall face defining a work chamber; shaft bearings supported in the stator; a rotor; a rotor drive shaft secured to the rotor and supported by the shaft bearings; and vanes secured to the rotor for revolving therewith. The vanes divided the work chamber into at least two compartments. The rotor is provided with a gas channel having a first end opening to the exterior in a zone of one of the bearings and a second end opening to a surface of the rotor for communicating with the compartments.

REFERENCES:
patent: 3474641 (1969-10-01), Granryd
patent: 3488945 (1970-01-01), Kelly
patent: 3509718 (1970-05-01), Fezer et al.
Patent Abstracts of Japan, M-1124 Jun. 13, 1991, vol. 15, No. 232, JP 3-70941 A.

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