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:
Apr. 23, 2013
Filed:
Mar. 27, 2009
Satoshi Miyazaki, Shizuoka, JP;
Toshihiro Nozue, Shizuoka, JP;
Satoshi Miyazaki, Shizuoka, JP;
Toshihiro Nozue, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
In an outboard engine, an upstream oil return path is connected to an oil passage upstream of an oil filter to return lubrication oil that is accumulated in the oil passage upstream of the oil filter to an oil pan. A downstream oil return path is connected to an oil passage downstream of the oil filter to return lubrication oil that is accumulated in oil passages and a main gallery downstream of the oil filter to the oil pan. The lubrication oil accumulated in a portion of an oil passage downstream of the oil filter is hindered from flowing to the outside even if the oil filter is removed when the engine is stopped.