US 12,345,186 B2
Exhaust structure for engine
Kunal Shamsundar Koyande, Pune (IN); Hisatoyo Arima, Hyogo (JP); Kozo Suzuki, Hyogo (JP); Yasuhiko Kanatake, Hyogo (JP); Hiroshi Kato, Hyogo (JP); Akio Fujiki, Hyogo (JP); Tomoyuki Takeshita, Hyogo (JP); and Kazuki Aizawa, Hyogo (JP)
Assigned to KAWASAKI MOTORS, LTD., Hyogo (JP)
Filed by KAWASAKI MOTORS, LTD., Hyogo (JP)
Filed on Dec. 30, 2022, as Appl. No. 18/091,561.
Application 18/091,561 is a continuation of application No. PCT/JP2022/008509, filed on Mar. 1, 2022.
Claims priority of application No. 202111009610 (IN), filed on Mar. 8, 2021.
Prior Publication US 2023/0134048 A1, May 4, 2023
Int. Cl. F01N 13/00 (2010.01); F01N 13/08 (2010.01)
CPC F01N 13/00 (2013.01) [F01N 13/08 (2013.01); F01N 2470/08 (2013.01); F01N 2470/22 (2013.01); F01N 2590/04 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An exhaust structure for an engine, comprising:
a catalyst converter configured to purify exhaust gas of the engine;
a catalyst pipe in which the catalyst converter is accommodated; and
a lead-out pipe configured to lead the exhaust gas to the catalyst pipe,
the lead-out pipe having a plurality of discharge holes formed in a peripheral wall thereof; and
a closing member which is fitted to an opening of a downstream end portion of the lead-out pipe and closes the downstream end portion of the lead-out pipe.