| 摘要 |
PURPOSE: A device for controlling prevention of block of fuel spraying is provided to prevent evaporation and bubble formation of fuel in an injector through connecting a solenoid valve of a press regulator toward atmospheric side in case of high temperature in water or sucked air of a vehicle. CONSTITUTION: A vehicle contains a sensor unit including a cooling water temperature sensor(G) detecting temperature of an engine cooling water; a throttle location sensor(H) detecting locations of a throttle valve in an idling state and a high load state; a sucked air temperature sensor(F) detecting temperature of sucked air of an engine; and an rpm(revolutions per minute) sensor of the engine. By receiving output signals from the sensor unit, an inner temperature, rpm of the engine, and opened state of the throttle valve are decided. After a specific time from starting the engine, the injector temperature is detected. In case of the temperature under an established temperature for generating bubbles and evaporating fuel in the injector, pressure is applied to the injector for closing a solenoid valve by a negative pressure. The fuel is discharged to a surge tank(10) or a fuel storing instrument.
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