Multi-stage rotary compressor having rollers which are...

Details Multi-stage rotary compressor having rollers which are... Multi-stage rotary compressor having rollers which are...

2007-08-07

2007-08-07

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

C418S011000

Reexamination Certificate

active

11353008

ABSTRACT:
In a high inner pressure type multistage compression system rotary compressor whose object is to improve sealability of a first rotary compression element and which includes a second rotary compression element having a displacement volume being smaller than that of the first rotary compression element and in which a refrigerant compressed by the first rotary compression element is compressed by the second rotary compression element to discharge the refrigerant into a sealed container, heights of a first cylinder of the first rotary compression element and a second cylinder of the second rotary compression element are set to be equal, diameters of both of eccentric portions are set to be equal, an inner diameter of the first cylinder is set to be larger than that of the second cylinder, and a thickness of a first roller is set to be larger than that of a second roller.

REFERENCES:
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patent: 6824367 (2004-11-01), Matsumoto et al.
patent: 6892454 (2005-05-01), Matsumoto et al.
patent: 7131821 (2006-11-01), Matumoto et al.
patent: 1316730 (2003-06-01), None
patent: 60128990 (1985-07-01), None
patent: 2001132675 (2001-05-01), None
patent: 2004-27970 (2004-01-01), None

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