| 摘要 |
PURPOSE:To improve the metering accuracy of injection amount and contrive stability of the mist of injection by a method wherein a constitution member, acting as a spring, is interposed in a clearance between a flat core and a member forming a valve seat independently of a valve constituting part or a housing. CONSTITUTION:When a solenoid coil is excited and a movable core 15 is lifted by being attracted to a coil assembly 6, a ball valve body 16 is separated from the valve seat 22 and fuel in a valve chamber 14 is injected from a nozzle 23 into an engine through a through hole 20. Accordingly, the injection amount of the fuel may be regulated in accordance with an amount corresponding to the operating condition of the engine by controlling a time to conduct the solenoid coil 5 in accordance with the operating condition of the engine. Here, a spring member 30 is held in the valve chamber 14, therefore, the degree of freedom of movement of the movable core 15 is regulated and the stable operation thereof may be permitted. |
