Title:
EXHAUST DEVICE OF INTERNAL-COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/062256
Kind Code:
A1
Abstract:
This exhaust device (20) of an internal-combustion engine (2) is provided with a silencer (20A) having a double-tube structure, and an exhaust pipe (30). An inner tube (21) and an outer tube (22) are in contact with one another. The exhaust pipe (30) and a support member (28) which supports the exhaust pipe (30) are disposed inside the silencer (20A). First welded portions (21h1, 21h2) in which the inner tube (21) and the support member (28) are welded together, and a second welded portion (21W) in which the inner tube (21) and the outer tube (22) are welded together, are formed in the inner tube (21). Slits (21s1, 21s2) are formed between the first welded portions (21h1, 21h2) and the second welded portion (21w) in the inner tube (21).
Inventors:
KURASAWA YUJI (JP)
SUZUKI JUNICHIRO (JP)
SUZUKI JUNICHIRO (JP)
Application Number:
PCT/JP2017/034916
Publication Date:
April 05, 2018
Filing Date:
September 27, 2017
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
F01N13/18; F01N1/00; F01N1/02; F01N13/08
Foreign References:
| JP2016156275A | 2016-09-01 | |||
| JP2014105617A | 2014-06-09 | |||
| JPS6251714A | 1987-03-06 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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