Rotary compressor with multiple compressor stages and pumping ca

Details Rotary compressor with multiple compressor stages and pumping ca Rotary compressor with multiple compressor stages and pumping ca

1993-03-15

1994-02-08

Bertsch, Richard A.

Rotary expansible chamber devices

Multistage

One working chamber stage encircles another

418 11, 418 13, 418 23, 418 59, F01C 130

Patent

active

052844269

ABSTRACT:
A multiple stage rotary compressor having a housing with a pump cavity, an orbiting ring piston in the cavity, a cylindrical post carried by the housing within the orbiting ring, a pair of vanes engaging the outer surface of the orbiting ring to define a pair of primary pumping chambers in the cavity and a second pair of internal vanes contacting the inner surface of the orbiting ring to define a pair of secondary pumping chambers and a capacity controller adapted to selectively disable each of the outer vanes to establish differing compressor pump capacities depending upon the operating requirements of the compressor.

REFERENCES:
patent: 4397618 (1983-08-01), Stenzel
patent: 4737088 (1988-04-01), Taniguchi et al.
patent: 5009577 (1991-04-01), Hayase et al.
patent: 5015161 (1991-05-01), Amin et al.
patent: 5135368 (1992-08-01), Amin et al.
"A Study On Dynamic Behavior Of A Scroll Compressor", 1986 International Compressor Engineering Conference at Purdue, vol. IV, Aug. 4-7, 1986, pp. 901-916.

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