US 12,168,963 B1
Engine air intake structure
Goki Takano, Hyogo (JP); Alexander Sics, Grand Rapids, MI (US); and Matthew Lompe, Grand Rapids, MI (US)
Assigned to KAWASAKI MOTORS, LTD., Hyogo (JP)
Filed by KAWASAKI MOTORS, LTD., Hyogo (JP)
Filed on Jan. 25, 2024, as Appl. No. 18/422,498.
Int. Cl. F02D 9/10 (2006.01); F02M 35/024 (2006.01)
CPC F02D 9/1035 (2013.01) [F02D 9/1065 (2013.01); F02M 35/02483 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An engine air intake structure comprising:
an electronically controlled throttle including
a throttle valve which regulates an amount of air to be supplied to the engine,
a throttle body which accommodates the throttle valve therein, and
an electronic control unit which controls the throttle valve, the electronic control unit including a control circuit board, the control circuit board being arranged to a side of the throttle body which faces away from an engine body of the engine; and
an air intake pipe which delivers intake air to an air intake port of the engine, the electronically controlled throttle being attached to the air intake pipe,
wherein
the throttle valve extends in a direction perpendicular to an axis of the throttle body,
the electronic control unit includes a motor which actuates the throttle valve and a gearbox accommodating a gearing which changes a speed of rotation from the motor,
the gearbox is arranged so as to be interposed between the engine body and the throttle body, and
the control circuit board, the motor, and the gearbox, which form the electronic control unit, are arranged in a U shape configuration.