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Patent Searching and Data


Title:
EXHAUST MUFFLER
Document Type and Number:
WIPO Patent Application WO/2019/188801
Kind Code:
A1
Abstract:
An exhaust muffler (24) comprises: an exhaust pipe (31) that forms a flow path for exhaust gas and that includes communication-holes (45) that penetrate the pipe wall; a gas sensor (33) that is attached to the exhaust pipe (31) and that detects gas in the exhaust pipe (31); and an outer cylinder (34) that is attached to the exhaust pipe (31), that forms a space which is around the exhaust pipe (31) and in communication with the communication holes (45), and that has disposed therein water drainage holes (46) at locations which do not overlap with the communication holes (45) in a bottom-surface view. Due to this configuration, provided is an exhaust muffler that can ensure the detection accuracy of a gas sensor even if a resonator is provided at the front part of a silencer.

Inventors:
KUBO Toshihiro (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
KURASAWA Yuji (4-1, Chuo 1-chome, Wako-sh, Saitama 93, 〒3510193, JP)
Application Number:
JP2019/012128
Publication Date:
October 03, 2019
Filing Date:
March 22, 2019
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:
F01N13/00; F01N1/02; F01N3/24; F01N13/08; F02D35/00
Domestic Patent References:
WO2016152898A12016-09-29
Foreign References:
JPH0178220U1989-05-25
JP2007085235A2007-04-05
JP2018003718A2018-01-11
JP2016156326A2016-09-01
JP2016056790A2016-04-21
JP2006207378A2006-08-10
Attorney, Agent or Firm:
OCHIAI & CO. (TO Building, 6-3 Taito 2-chome, Taito-k, Tokyo 16, 〒1100016, JP)
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