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:
Feb. 04, 1992
Filed:
Mar. 11, 1991
Gregg T Black, Livonia, MI (US);
Chrysler Corporation, Highland Park, MI (US);
Abstract
A combination gear type oil pump and pressure regulator is disclosed, particularly for a lubricating system of an internal combustion engine. Elements of a gear type pump are housed within an internal recess in the engine crankcase. An end cover is positioned between an enlarged portion of the crankshaft and gear elements and is biased thereagainst by a carefully selected spring which is positioned between the cover member and the enlarged crankshaft portion so that when a predetermined high pressure is formed at the pump outlet, the spring allows the end cover to move away from the pump elements to relieve the pressure by spillage in to the engine crankcase.