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. 24, 2021
Filed:
Oct. 10, 2017
Sanden Automotive Components Corporation, Isesaki, JP;
Taizo Sato, Isesaki, JP;
Sanden Automotive Components Corporation, Isesaki, JP;
Abstract
The scroll-type compressor comprises a fixed scroll and an orbiting scroll engaged with each other; a back pressure control valveinserted from the large-diameter side of the stepped-shaped pressure release passage Lwhich communicates between a suction chamber Hand a back pressure chamber Hwhich applies a back pressure for pressing the orbiting scroll against the fixed scroll. The scroll-type compressor further comprises an O-ringfitted in a circumferential grooveformed in the outer peripheral surface of the valve, and a ring memberpress-fitted into the large-diameter side of the pressure release passage L, and holds the valvebetween the ring memberand the stepped portion. Then, the compressive stress is unlikely to be applied to the valve, and the deformation of the valveis reduced to prevent the reduction in the control accuracy of the back pressure.