Patent ID: 9581117
Date: 2017-02-28
CPC Classifications: F02D,F02M

Claim:
1. A fuel injection device comprising: a solenoid valve for injecting fuel into an intake passage of an engine, the solenoid valve being opened as a result of a drive current being applied to a coil, and fuel being injected into the intake passage of the engine at a predetermined timing during the rotation period of the engine, and an alternating-current generator having an electromotive coil at a predetermined position on an external periphery of a flywheel disposed on an engine shaft of the engine and provided with a magnet in an area along the edge, the alternating-current generator generating electricity by the rotation of the engine and outputting a predetermined signal, the electromotive coil is disposed at a predetermined position along the external periphery of the flywheel in a crank angle position at which an output is generated in synchronization with the intake timing of the engine used, the signal is an injection command signal applied to the solenoid valve as an alternating-current drive current, and the applied voltage increases with increased engine speed.