US 12,140,110 B2
Internal combustion engine
Wataru Yamazaki, Wako (JP); Fumio Minami, Wako (JP); Takashi Suzuki, Wako (JP); and Shogo Sakurai, Wako (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Appl. No. 18/549,709
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
PCT Filed Mar. 12, 2021, PCT No. PCT/JP2021/010180
§ 371(c)(1), (2) Date Sep. 8, 2023,
PCT Pub. No. WO2022/190383, PCT Pub. Date Sep. 15, 2022.
Prior Publication US 2024/0151195 A1, May 9, 2024
Int. Cl. F02M 35/02 (2006.01); F02M 35/024 (2006.01); F02M 35/10 (2006.01)
CPC F02M 35/024 (2013.01) [F02M 35/0201 (2013.01); F02M 35/10013 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An internal combustion engine comprising:
a crankshaft,
a cooling air intake device that houses a cooling fan coupled to the crankshaft and that includes a cooling air intake port which opens to an outside of the internal combustion engine, and
an air cleaner device that feeds outside air to an air suction port to a cylinder, wherein
the air cleaner device includes an outside air intake opening that opens to the outside and toward the cooling air intake port,
the air cleaner device includes a cyclone ventilation part that supplies the outside air in a cyclonic state from the outside air intake opening,
the air cleaner device includes: an air cleaner element through which the outside air passes; a body member that covers the air cleaner element from a lower side in a gravity direction; and a cover member that covers the air cleaner element from an upper side in the gravity direction,
the cyclone ventilation part is formed by joining the body member and the cover member of the air cleaner device.