Production method of the throttle body and opener opening and a method for adjusting the throttle body

摘要

The throttle body (2) includes a resin body body (3) that forms a bore (7) through which intake air flows, a shaft portion (20) that is rotatably supported by the body body (3), and a body body ( 3) A valve body (60) having a valve section (4) for opening and closing the bore (7) and a resin cover body (40) attached to the body main body (3). The cover body (40) is attached to the body body (3) by welding.