THROTTLE CONTROL DEVICE HAVING THROTTLE BODY IN WHICH SUCTION PASSAGE AND FIRST AND SECOND SPACES ARE FORMED

摘要

PURPOSE: A throttle control device is provided to achieve improvement in radiation of heat produced from a motor. CONSTITUTION: A throttle control device comprises a throttle body(1); a suction passage, a first space(24a), a second space(44) each formed in the throttle body; a throttle valve(2) rotatably arranged in the suction passage; and a motor(4) rotating the throttle valve. The motor is received in the first space. The second space communicates with the first space. The space is arranged near the suction passage through a wall part. The heat produced in the motor is radiated into the suction passage via the second space part and the wall part.