Title:
船外機及び船外機の製造方法
Document Type and Number:
Japanese Patent JP5710298
Kind Code:
B2
Abstract:
An outboard motor includes an engine, an exhaust manifold, and a lower exhaust passage. The engine includes a plurality of cylinders, and a plurality of exhaust ports. The cylinders are disposed in-line in a vertical direction. The exhaust ports are respectively connected to the cylinders. The exhaust manifold includes a first passage, a second passage, and a third passage. The first passage is connected to the exhaust ports, and extends in a vertical direction. The second passage is connected to the first passage. The third passage is connected to the first passage below the second passage. The lower exhaust passage is connected to the exhaust manifold, and provides a passage through which exhaust gas is expelled to the outside from the exhaust manifold. One of the second passage and the third passage is connected to the lower exhaust passage.
Inventors:
Maekawa Shinya
Toshio Suzuki
Koichi Nakayama
Katsumi Ochiai
Toshio Suzuki
Koichi Nakayama
Katsumi Ochiai
Application Number:
JP2011021073A
Publication Date:
April 30, 2015
Filing Date:
February 02, 2011
Export Citation:
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classes:
F01N13/10; B63H20/24; F01N3/20; F01N3/24; F01N3/28; F01N13/08
Domestic Patent References:
| JP2010242744A | ||||
| JP2010216452A | ||||
| JP8207892A | ||||
| JP2001295639A | ||||
| JP2008309129A |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation
Yukio Ono
Yamashita
Yukio Ono
Yamashita