Rotary compressor with improved fluid inlet porting

Details Rotary compressor with improved fluid inlet porting Rotary compressor with improved fluid inlet porting

1995-04-06

1995-12-05

Freay, Charles

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 6, 418 59, F04C 200

Patent

active

054723272

ABSTRACT:
A 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, at least one pair of vanes engaging the orbiting ring to define pumping chambers in the cavity, a pair of primary fluid inlet passages communicating with the working pressure chamber during expansion of the pressure chamber, a pair of fluid outlet ports communicating with the working chambers as the volume of the working chambers contracts upon rotation of the orbiting ring piston, and a pair of secondary fluid inlet ports in parallel disposition with respect to the primary ports formed in a valve plate adjacent the orbiting ring piston whereby the orbiting ring piston registers with the ports and opens and closes the ports in synchronism with the opening end and closing of the main ports whereby the effective inlet flow capacity for the fluid into the expanding working chamber is increased.

REFERENCES:
patent: 3695789 (1978-10-01), Jansson
patent: 3791779 (1974-02-01), Nelson
patent: 4286933 (1981-09-01), Sakamaki et al.
patent: 5015161 (1991-05-01), Amin et al.
patent: 5135368 (1992-08-01), Amin et al.
patent: 5284426 (1994-02-01), Strikis et al.
patent: 5370511 (1994-12-01), Strikis et al.
patent: 5399076 (1995-03-01), Matsuda et al.

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