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.
Patent No.:
Date of Patent:
Jul. 24, 2012
Filed:
Mar. 06, 2007
Takahiro Yamaguchi, Osaka, JP;
Satoshi Ishikawa, Osaka, JP;
Masahiro Yamada, Osaka, JP;
Kazuhiro Furusho, Osaka, JP;
Takahiro Yamaguchi, Osaka, JP;
Satoshi Ishikawa, Osaka, JP;
Masahiro Yamada, Osaka, JP;
Kazuhiro Furusho, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A compressor () is provided with compression mechanisms () to have four compression chambers () in total. In the compressor (), the first compression chamber () and the second compression chamber () differ in the phase of capacity changing cycle from each other by 180° and the third compression chamber () and the fourth compression chamber () also differ in the phase of capacity changing cycle from each other by 180°. In a cylinder nonoperating mode, refrigerant is compressed in a single stage in each of the first compression chamber () and the second compression chamber () while the refrigerant compression operation is halted in the third compression chamber () and the fourth compression chamber (). In a two-stage compression mode, refrigerant compressed in a single stage in each of the first compression chamber () and the second compression chamber () is further compressed in the third compression chamber () and the fourth compression chamber ().