The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 30, 2010

Filed:

Oct. 17, 2006
Applicants:

Shinichi Sato, Kariya, JP;

Masahiro Kawaguchi, Kariya, JP;

Jun Kondo, Kariya, JP;

Takeshi Aoki, Kariya, JP;

Tomohiro Wakita, Kariya, JP;

Mitsuyo Ishikawa, Kariya, JP;

Akio Saiki, Kariya, JP;

Inventors:

Shinichi Sato, Kariya, JP;

Masahiro Kawaguchi, Kariya, JP;

Jun Kondo, Kariya, JP;

Takeshi Aoki, Kariya, JP;

Tomohiro Wakita, Kariya, JP;

Mitsuyo Ishikawa, Kariya, JP;

Akio Saiki, Kariya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A mechanism for drawing in refrigerant to front compression chambers () of a double-headed piston type compressor differs from a mechanism for drawing in refrigerant to rear compression chambers (). More specifically, the mechanism for drawing in refrigerant to the front compression chambers () include suction valves () configured by flap valves. The mechanism for drawing in refrigerant to the rear compression chambers () is configured by a rotary valve (). Thus, pulsation of the compressor is reduced, so that the generation of noise is suppressed. As a result, a quiet compressor is achieved.


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