| 摘要 |
PURPOSE: A fuel shut off device is provided to prevent additional explosion by rapidly shutting off fuel according to control motion of a driving unit in crashing accident and to improve reliability by operating a solenoid valve. CONSTITUTION: A fuel shutoff device comprises a fuel pump(2) pumping fuel; an injector(4) receiving the fuel through a pipe(3); a solenoid valve(5) selectively opening the pipe through input voltage by being mounted in the middle of the pipe; a driving unit(6) shutting off the pipe by opening the solenoid valve while inputting an RPM(Revolution Per Minute) or a starting signal; and plural transistors. Thereby, the fuel shutoff device prevents an additional explosion by rapidly shutting off the fuel according to a control motion of the driving unit in a crashing accident. Moreover, the fuel shutoff device improves reliability by operating a solenoid valve according to control of an electronic control unit.
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