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:
Jul. 18, 2023

Filed:

Dec. 17, 2018
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Yoshihiro Harada, Wako, JP;

Tatsuya Kuroda, Wako, JP;

Hiroshi Yamamoto, Wako, JP;

Takeshi Okada, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/04 (2006.01); B63H 20/28 (2006.01); B63H 20/32 (2006.01); B63H 20/24 (2006.01); F01P 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/04 (2013.01); B63H 20/245 (2013.01); B63H 20/28 (2013.01); B63H 20/32 (2013.01); F01P 3/202 (2013.01); B63H 2020/323 (2013.01); F01P 2060/00 (2013.01);
Abstract

An outboard motor is provided with an upper separator disposed on the lower side of an oil case for storing a lubricating oil of an engine, and an extension case which is separably connected on the lower side of the upper separator. The upper separator has a central exhaust passage through which exhaust gas flows, and a cooling water flow part through which cooling water flows on the outside of the central exhaust passage, the central exhaust passage and the cooling water flow part forming an integrated structure. The exhaust gas and the cooling water are caused to mix in the extension case.


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