Title:
EXHAUST STRUCTURE
Document Type and Number:
Japanese Patent JP2020084776
Kind Code:
A
Abstract:
To suppress noise emission in the vicinity of an outlet of an exhaust pipe.SOLUTION: An exhaust structure includes: an exhaust pipe 20 formed by welding an upper part and a lower part; and an internal cylinder (muffler cutter insertion pipe) 32 inserted into the exhaust pipe from a downstream side so as to cover a weld part between the upper part and the lower part from the inside. The internal cylinder 32 has a seamless cylindrical pipe shape of which inner surface side of an upstream side end part is chamfered.SELECTED DRAWING: Figure 3
Inventors:
KOMIYA MAKOTO
SAKAKIBARA KENJI
SAKAKIBARA KENJI
Application Number:
JP2018215081A
Publication Date:
June 04, 2020
Filing Date:
November 15, 2018
Export Citation:
Assignee:
TOYOTA MOTOR CORP
SANGO CO LTD
SANGO CO LTD
International Classes:
F01N13/20; B60K13/04; F01N13/18
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office