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Patent Searching and Data


Title:
EXHAUST DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2017/159019
Kind Code:
A1
Abstract:
An exhaust muffler 22 is formed from a plurality of layers comprising an exhaust passage pipe 40 and expansion chambers 45, 46, 47. The exhaust muffler 22 is provided with a front assembly 23, and a rear assembly 30 which is sub-assembled separately from the front assembly 23. The front assembly 23 is provided with: a front exhaust passage pipe 41; a front muffler body 24 which is disposed so as to cover the outside of the front exhaust passage pipe 41, and which forms a double pipe with the front exhaust passage pipe 41; and an exhaust valve 50 which is disposed inside the front exhaust passage pipe 41. The rear assembly 30 is provided with: a rear exhaust passage pipe 42; and a rear muffler body 31 which is disposed so as to cover the outside of the rear exhaust passage pipe 42, and which forms a double pipe with the rear exhaust passage pipe 42. Accordingly, an exhaust device for an internal combustion engine is provided in which the accuracy of the assembly position of the exhaust valve 50 is high.

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Inventors:
KISHIKAWA, Keisuke (LTD. 4-1 Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
FUKUI, Yoji (LTD. 4-1 Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
YOSHIO, Kazuya (LTD. 4-1 Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
OTSUKA, Takuya (LTD. 4-1 Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
Application Number:
JP2017/001128
Publication Date:
September 21, 2017
Filing Date:
January 13, 2017
Export Citation:
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Assignee:
HONDA MOTOR CO., LTD. (1-1 Minami-Aoyama 2-chome, Minato-ku Tokyo, 56, 〒1078556, JP)
International Classes:
F01N1/16; F01N1/06; F01N1/08; F01N13/08
Foreign References:
JP2006017124A2006-01-19
Attorney, Agent or Firm:
KAMIZAWA, Junko et al. (EHARA & ASSOCIATES, 33-4 Hongo 1-chome, Bunkyo-k, Tokyo 33, 〒1130033, JP)
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