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. 28, 2009
Filed:
Dec. 06, 2005
Hirotsugu Ogasawara, Ota, JP;
Takahiro Nishikawa, Gunma-ken, JP;
Masayuki Hara, Ota, JP;
Hiroyuki Yoshida, Ota, JP;
Akira Hashimoto, Ota, JP;
Hirotsugu Ogasawara, Ota, JP;
Takahiro Nishikawa, Gunma-ken, JP;
Masayuki Hara, Ota, JP;
Hiroyuki Yoshida, Ota, JP;
Akira Hashimoto, Ota, JP;
Sanyo Electric Co., Ltd., Moriguchi-Shi, JP;
Abstract
In a multicylindrical rotary compressor constituted to be usable by urging an only first vane with respect to a first roller by means of a spring member to switch a first operation mode in which first and second rotary compression elements perform compression works and a second operation mode in which substantially the only first rotary compression element performs the compression work, an object is to reduce generation of collision noises due to collision of the second vane with the second roller at a time when the first operation mode is switched to the second operation mode, and a pressure in a back-pressure chamber of the second vane is discharged on a low-pressure chamber side in a second cylinder in a case where the first operation mode is switched to the second operation mode.