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:
May. 08, 1990
Filed:
Aug. 08, 1989
Manfred Batzill, Neuhausen, DE;
Dr. Ing. h.c.F. Porsche AG, , DE;
Abstract
An oil pump of an internal-combustion engine supplies dirty oil through a vertically extending oil feeding duct into a ring duct of an oil filter flange. From there, the oil flows through the oil filter and a central bore into a main oil duct. Since the oil feeding duct leads into the ring duct above the central bore, and the main oil duct extends above the central bore, the filter oil level, will not fall under the level of the dirty-oil inlet into the ring duct when the engine is switched off. A complete emptying of the oil filter is therefore prevented when the engine is switched off, and a fast oil pressure buildup is promoted when the engine is started again.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile