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.

Date of Patent:
Mar. 17, 2009

Filed:

Dec. 27, 2006
Applicants:

Masanori Takahashi, Shizuoka-ken, JP;

Kentaro Kameoka, Shizuoka-ken, JP;

Satoshi Miyazaki, Shizuoka-ken, JP;

Inventors:

Masanori Takahashi, Shizuoka-ken, JP;

Kentaro Kameoka, Shizuoka-ken, JP;

Satoshi Miyazaki, Shizuoka-ken, JP;

Assignee:

Yamaha Marine Kabushiki Kaisha, Shizuoka-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 20/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An engine for an outboard motor is provided that can include a crankcase having a crankcase chamber, a cam chamber, and an oil pan disposed below the crankcase. The engine can also include a crank chamber oil-return passage through which lubricating oil can be returned from the crank chamber to the oil pan. Further, the engine can include a cam chamber oil-return passage through which lubricating oil can be returned from the cam chamber to the oil pan. Finally, the engine can also include a gas passage to provide communication between the crank chamber, the cam chamber, and the oil pan in order to allow passage of blow-by gas without substantial interference with the movement of the lubricating oil.


Find Patent Forward Citations

Takahashi, Masanori. (2009). Four-stroke engine for an outboard motor (U.S. Patent No. 7503318). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7503318

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

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