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. 02, 2013
Filed:
Jan. 05, 2009
Masayuki Kakuda, Tokyo, JP;
Fumihiko Ishizono, Tokyo, JP;
Hideaki Nagata, Tokyo, JP;
Mihoko Shimoji, Tokyo, JP;
Shin Sekiya, Tokyo, JP;
Toshihide Koda, Tokyo, JP;
Masayuki Kakuda, Tokyo, JP;
Fumihiko Ishizono, Tokyo, JP;
Hideaki Nagata, Tokyo, JP;
Mihoko Shimoji, Tokyo, JP;
Shin Sekiya, Tokyo, JP;
Toshihide Koda, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A scroll fluid machine that suppresses fluctuations in a port aperture area during each revolution of an orbiting scroll. Suction ports for sucking in a working fluid are disposed on a second base plate to have openings in a vicinity of a winding start end portion of a second spiral tooth, and near an inward facing surface of the second spiral tooth at a position separated by an involute angle approximately 90° from the winding start end portion of the second spiral tooth. Discharge ports for discharging the working fluid are disposed on a first base plate to have openings in a vicinity of a winding start end portion of a first spiral tooth, and near an inward facing surface of the first spiral tooth at a position separated by an involute angle approximately 90° from the winding start end portion of the first spiral tooth.