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:
Oct. 22, 1991
Filed:
Aug. 31, 1990
Applicant:
Inventors:
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231 / ; 184106 ;
Abstract
An oil pan for an internal combustion engine having an engine lubrication system. The oil pan comprises a shallow bottom section and a sump. The shallow bottom section includes an inclined surface which gradually becomes lower in level toward the sump and toward the downstream of the oil flow caused by the rotation of the crankshaft. Therefore, the lubrication oil dropped on the shallow bottom section is effectively returned into the sump through the lower side of the inclined surface under the action of a force caused by the rotation of the crankshaft or the like.