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:
Apr. 10, 2018

Filed:

Oct. 21, 2016
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;

Inventor:

Atsushi Kumita, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 20/00 (2006.01); B63H 20/10 (2006.01); B63H 20/32 (2006.01);
U.S. Cl.
CPC ...
B63H 20/002 (2013.01); B63H 20/10 (2013.01); B63H 20/32 (2013.01);
Abstract

An outboard motor includes an engine housed in a cowling and disposed above an upper case housing a driveshaft. A gear mechanism transmits a rotation of the driveshaft to a propeller shaft housed in a lower case disposed below the upper case. The gear mechanism is housed in an oil storage chamber of the lower case and is lubricated by a lubricating oil inside the oil storage chamber. An oil passage includes a lower oil port opening at the oil storage chamber, an upper oil port positioned higher than the lower case, and a longitudinal passage extending in an up/down direction inside the lower case.


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