PURPOSE: An explosion safety device for an LPG vehicle is provided to prevent the explosion of the vehicle in advance by automatically stopping an engine when inserting a gas injector. CONSTITUTION: An explosion safety device for an LPG vehicle is composed of a limit switch(10) sensing gas injecting state, a relay switch(20) operated by the value of the sensing unit, and an operating unit(30) stopping an engine by the operation of the relay switch. The limit switch is operated by inserting a gas injector. The operating unit is installed between a vaporizer and a bombe, and controls the flow of a high pressure liquid fuel stored in the bombe.
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