SUCTION DEVICE FOR INTERNAL COMBUSTION ENGINE, TO ENABLE REDUCTION OF SIZE OF SUCTION DEVICE

摘要

PURPOSE: A suction device for an internal combustion engine is provided to reduce the size of the suction device by simplifying the connection structure for a throttle body and a pipe member. CONSTITUTION: A suction device for an internal combustion engine comprises a throttle body(1) having a suction passage; a throttle valve(2) arranged to the suction passage; a pipe member having a communicating passage communicating with the suction passage; and engaging devices including at least one engaging protrusion and at least one engaging recess. The pipe member is connected to the throttle body. The engaging devices are arranged between the throttle body and the pipe member. The throttle body and the pipe member are separated from each other when the engaging protrusion and the engaging recess are engaged.