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. 29, 2016

Filed:

Jun. 06, 2014
Applicant:

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

Inventors:

Kimitaka Saruwatari, Shizuoka, JP;

Katsumi Ochiai, Shizuoka, JP;

Toshio Suzuki, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 20/24 (2006.01); F01N 3/04 (2006.01); F01N 13/00 (2010.01); F01N 3/10 (2006.01); F01P 3/20 (2006.01);
U.S. Cl.
CPC ...
B63H 20/245 (2013.01); F01N 3/043 (2013.01); F01N 3/10 (2013.01); F01N 13/004 (2013.01); F01N 13/008 (2013.01); F01N 2590/021 (2013.01); F01P 3/202 (2013.01); Y02T 10/20 (2013.01);
Abstract

An outboard motor includes an exhaust pipe that includes an outer wall section, an inner wall section, a coolant passage, and a constricted section. The inner wall section is arranged inward of the outer wall section. The coolant passage is arranged between the outer wall section and the inner wall section. The constricted section is configured to constrict a flow cross section of the coolant passage. A catalytic converter is housed in the exhaust pipe. A temperature sensor is installed in the constricted section and measures a temperature of a pipe wall of the exhaust pipe.


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