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.:

US 7021266 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 04, 2006

Filed:

Feb. 19, 2003
Applicants:

Yoji Utsumi, Shizuoka, JP;

Masahiro Ito, Shizuoka, JP;

Inventors:

Yoji Utsumi, Shizuoka, JP;

Masahiro Ito, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An engine lubrication system having a lubricating oil pump that is rotationally driven by a crankshaft to send under pressure a lubricating oil to a part needing to be lubricated. The lubricating oil pump is connected to an end of a crankshaft such that a pump shaft aligns with the crankshaft substantially coaxially. An in-pump oil supply passageway is formed in the lubricating oil pump to pass therethrough from a side opposite the crankshaft to a side of the crankshaft. The in-pump oil supply passageway communicates at one end with an in-crankshaft oil supply passageway formed in the crankshaft for supplying a lubricating oil to a part of the crankshaft and at the other end with a discharge port of the lubricating oil pump via a lubricating oil passageway.


Find Patent Forward Citations

Utsumi, Yoji. (2006). Engine lubricating device (U.S. Patent No. 7021266). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7021266

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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