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:
Nov. 17, 1998
Filed:
Aug. 07, 1996
Werner Leicht, Stetten, DE;
MTU Motoren- und Turbinen Union Friedrichshafen GmbH, Friedrichshafen, DE;
Abstract
A lubricating system for an internal combustion engine maintains lubrication even in extreme emergency positions of the engine such as slants within the range of about 90.degree. to about 270.degree., relative to the horizontal and even for upside down engine positions. For this purpose, a hydraulic accumulator (16) is connected to the lubricant circulating circuit through a parallel connection of a non-return valve (17) and a controllable valve. Under normal operating conditions, the hydraulic accumulator is charged with lubricant under the pressure prevailing in the lubricant circulating system. Under emergency conditions, the normal lubrication is stopped and emergency lubrication continues through the controllable valve that is opened in response to a pressure drop in the normal lubricant circulating system.