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:
Jun. 26, 1990
Filed:
Dec. 02, 1987
Takahiro Hasegaki, Kusatsu, JP;
Toshio Matsuda, Kusatsu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a sliding vane type compressor including a cylinder having a cylindrical inner wall, a rotor disposed within the cylinder and having a vane slot, and an oil supply means for feeding oil during the rotation of the rotor to the vane backpressure chamber of the vane inserted slidably into the vane slot, refrigerating gas within the refrigeration cycle is used as vane backpressure means, which providing a gas passage opening, closing means is provided in a passage for supplying the gas, the gas passage being shut off during the steady operation of the compressor to cause the oil supply amount to be proper into the vane backpressure chamber to improve the durability and efficiency of the compressor.