Patent attributes
According to the present apparatus, on multi-throttle apparatus provided with multiple throttle valves 20 that are respectively disposed in multiple intake passages 11, a throttle shaft 30 that simultaneously opens/closes the throttle valves 20, drive means 50 that drives the throttle shaft 30, and a return spring 60, the driving force of the drive means 50 is applied to an approximate center of the throttle shaft 30, the energizing force of the return spring 60 is applied close to the location to which the energizing force is applied, and bearings 40 are provided in mutual intervals between the multiple intake passages 11 to support the throttle shaft 30. Consequently, torsion of the throttle shaft 30 is prevented, and the throttle valves 20 are opened/closed synchronously without generating a phase shift. Consequently, electronic control is provided for multi-throttle apparatuses applied to engines of two-wheeled vehicles and the like, and the synchronization among throttle valves is secured.
