US 12,134,977 B2
V-type engine
Sayaka Yasoshina, Saitama (JP); Atsuki Sugihara, Saitama (JP); Mashu Kurata, Saitama (JP); and Takahiro Tsuchiyama, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Appl. No. 18/547,783
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
PCT Filed Feb. 25, 2021, PCT No. PCT/JP2021/007153
§ 371(c)(1), (2) Date Aug. 24, 2023,
PCT Pub. No. WO2022/180742, PCT Pub. Date Sep. 1, 2022.
Prior Publication US 2024/0133333 A1, Apr. 25, 2024
Prior Publication US 2024/0229700 A9, Jul. 11, 2024
Int. Cl. F01N 3/28 (2006.01); F01N 13/10 (2010.01); F01N 13/14 (2010.01); F02B 75/22 (2006.01); F02B 77/11 (2006.01)
CPC F01N 13/10 (2013.01) [F01N 3/28 (2013.01); F01N 13/14 (2013.01); F02B 75/228 (2013.01); F02B 77/11 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A V-type engine, comprising:
an engine body including
a crankcase configured to rotatably support a crankshaft, and
a pair of cylinder banks extending from the crankcase;
a pair of exhaust pipes connected to the pair of cylinder banks;
a catalyst pipe connected to the pair of exhaust pipes; and
a catalyst accommodated in the catalyst pipe,
wherein each of the pair of exhaust pipes is connected to the catalyst pipe on an upstream side of the catalyst in an exhaust direction, and
the catalyst pipe is arranged adjacently to the pair of cylinder banks,
wherein the catalyst pipe extends in a width direction of the engine body from a distal end side of one of the cylinder banks to a distal end side of another of the cylinder banks, and
each of the pair of exhaust pipes is connected to the catalyst pipe on one side of the catalyst in the width direction of the engine body that is perpendicular to an axial direction of the crankshaft, the width direction of the engine body being a direction in which the pair of cylinder banks are aligned.