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:
Aug. 17, 1993
Filed:
Sep. 27, 1991
Takayuki Iio, Nishikasugai, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A scroll type compressor has bypass ports communicating with chambers which are being compressed. The bypass parts are bored in an end plate of a stationary scroll. A capacity control block contained inside a bypass passage has the bypass ports communicating with a suction chamber formed in a housing. A piston valve for opening and closing this bypass passage and control valve which senses a discharge pressure and a suction pressure and generates a control pressure for operating the piston valve is formed separately from the stationary scroll. The capacity control block is installed in close contact with the outer surface of the end plate of the stationary scroll, thus controlling the output capacity of the compressor in a range from 0% to 100%.