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:
Sep. 01, 2015

Filed:

Jul. 07, 2014
Applicant:

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

Inventors:

Katsumi Ochiai, Shizuoka, JP;

Shinichi Hoshiya, Shizuoka, JP;

Shinya Maekawa, Shizuoka, JP;

Toshio Suzuki, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 20/24 (2006.01); F01N 3/28 (2006.01); F01N 13/08 (2010.01); F01N 13/10 (2010.01); F01N 13/00 (2010.01); F01N 13/12 (2010.01); F01N 13/18 (2010.01); F02F 1/24 (2006.01); F01N 3/00 (2006.01); B63H 20/14 (2006.01); F02B 61/04 (2006.01); F02B 75/22 (2006.01);
U.S. Cl.
CPC ...
B63H 20/245 (2013.01); B63H 20/14 (2013.01); F01N 3/005 (2013.01); F01N 3/28 (2013.01); F01N 13/004 (2013.01); F01N 13/08 (2013.01); F01N 13/10 (2013.01); F01N 13/12 (2013.01); F01N 13/1811 (2013.01); F02F 1/243 (2013.01); F02B 61/045 (2013.01); F02B 75/22 (2013.01); Y02T 10/20 (2013.01);
Abstract

An engine includes a cylinder block including a plurality of cylinders disposed along a V-shaped line, a pair of exhaust manifolds disposed inside the V-shaped line, and an exhaust pipe disposed inside the V-shaped line. Each of the pair of exhaust manifolds includes a first passage that includes a plurality of inflow ports into which exhaust gases from the cylinders flow, a collecting portion at which exhaust gases are collected, and an exhaust port from which exhaust gases are discharged. The exhaust pipe includes a connection passage that includes a pair of intermediate inflow ports that are connected to the exhaust ports, at least one intermediate exhaust port from which exhaust gases are discharged. The connection passage is arranged to connect the pair of intermediate inflow ports and the at least one intermediate exhaust port.


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