PROBLEM TO BE SOLVED: To compact a suction device of an engine by forming a throttle sensor and fuel injection controlling elements in a unit structure and installing on a throttle body compactly. ;SOLUTION: This suction device of an engine is equipped with the throttle body 11 having a suction duct 12 leading to the suction port of the engine, a throttle valve 20 controlling the suction amount by the engine through the suction duct 12, and a fuel injection valve injecting the fuel to be supplied to the engine. The throttle body 11 is furnished with an electronic control unit U incorporated with a throttle sensor Sth for sensing the degree of opening of the throttle valve 20 and fuel injection controlling elements 81 and 82 for controlling the fuel injection amount of the fuel injection valve, at least on the basis of the output signal from the throttle sensor Sth.;COPYRIGHT: (C)2001,JPO
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