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:
Apr. 25, 1978
Filed:
Aug. 04, 1976
Haruhiko Takada, Konan, JA;
Diesel Kiki Co., Ltd., Tokyo, JA;
Abstract
A rotor is eccentrically mounted in a bore of a housing and formed with radial slots in which vanes are slidably retained. A lubricant passageway leads from an oil sump through the radially inner portions of the slots to a fluid inlet, the oil sump communicating with a fluid outlet. The high pressure in the outlet forces oil through the lubricant passageway to lubricate the vanes and urge the vanes into sealing engagement with the inner wall of the bore. Oil sucked from the inlet into the bore lubricates the outer ends of the vanes and is recovered at the outlet and returned to the oil sump. A check valve at the inlet closes when the compressor is stopped to prevent discharge of fluid and oil out the inlet. An equalizing valve acting integrally with the check valve connects the inlet to the outlet when the compressor is stopped to prevent oil from filling the inlet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile