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Patent Searching and Data


Title:
EXHAUST DEVICE FOR SADDLED VEHICLES
Document Type and Number:
WIPO Patent Application WO/2019/043869
Kind Code:
A1
Abstract:
This exhaust device for saddled vehicles comprises: a catalyst that cleans exhaust gas discharged from an engine; a muffler chamber that muffles the exhaust noise of the engine downstream of the catalyst; an exhaust introduction pipe that has one end connected to an exhaust passage connected to the exhaust port of the engine and the other end projecting into the muffler chamber; and a downstream oxygen sensor that detects the oxygen concentration of the exhaust gas which passed through the catalyst. The bottom wall of the muffler chamber is surrounded on three sides by side walls and has a recessed part open at the top and on one side. The bottom wall of the recessed part declines toward the one side, the decline ending at the edge of the one side. The downstream oxygen sensor piercingly extends through the bottom wall of the recessed part and the exhaust introduction pipe and is attached to the recessed part. The oxygen detection unit of the downstream oxygen sensor is disposed so as to overlook a point along the exhaust introduction pipe which is downstream of the catalyst.

Inventors:
MAHIRA HIROSHI (JP)
Application Number:
PCT/JP2017/031360
Publication Date:
March 07, 2019
Filing Date:
August 31, 2017
Export Citation:
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Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
B62M7/02; F01N3/00; F01N13/00
Foreign References:
JP2016160914A2016-09-05
JP2007008442A2007-01-18
JP2016160915A2016-09-05
JP2016183657A2016-10-20
JP2003327187A2003-11-19
JP2016183652A2016-10-20
JP2017110616A2017-06-22
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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