FUEL OUTFLOW PREVENTING APPARATUS FOR GAS FUEL VEHICLE

摘要

PURPOSE: A fuel outflow preventing apparatus for a gas fuel vehicle is provided to prevent the outflow of the gas fuel at the engine operation by closing a fuel outflow preventing valve, automatically, thereby improving the safety. CONSTITUTION: A fuel outflow preventing apparatus for a gas fuel vehicle is composed of a fuel tank(50), an injector(53) for injecting the liquid fuel from the fuel tank to an intake pipe of an engine in accordance with the driving condition, a pressure regulator(58) for keeping the fuel pressure in a determined value when the fuel pressure is more than the determined valve, a fuel outflow preventing valve(55,56) installed to open/close an inlet and outlet of the engine and outlet of the fuel tank, and an electronic control device(60) by which the fuel outflow preventing valve is closed when the pressure value detected by a pressure sensor is lower than an input valve.