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. 27, 2012
Filed:
Mar. 07, 2008
Applicant:
Shintaro Sato, Shizuoka, JP;
Inventor:
Shintaro Sato, Shizuoka, JP;
Assignee:
Yamaha Hatsudoki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine (internal combustion engine), in accordance with an embodiment, includes: a crankcase having an oil pan; a crankshaft disposed inside the crankcase; a second crank gear disposed inside the crankcase to rotate about the crankshaft; a driven gear meshed with the second crank gear to be rotated as the second crank gear rotates; an oil pump drive gear meshed with the driven gear to rotate together with the driven gear; and an oil pump gear to be rotated as the oil pump drive gear rotates. The oil pump gear is disposed to overlap the driven gear as viewed from an axial end of the crankshaft.