DEVICE AND METHOD FOR PREVENTING A FUEL LEAKAGE IN A VEHICLE, CAPABLE OF PREVENTING THE FUEL LEAKAGE FROM THE ROLL OVER VALVE OF A FUEL TANK

摘要

PURPOSE: A device and method for preventing a fuel leakage in a vehicle are provided to prevent the fuel leakage from the roll over valve (ROV) of a fuel tank full of fuel when the vehicle running on a bump or a bump road.;CONSTITUTION: A device for preventing a fuel leakage includes a fuel sensor (107), a pressure sensor (108), a control part (109), and a solenoid (105). The fuel sensor measures the amount of fuel inside a fuel tank in a vehicle. The pressure sensor detects pressure inside the fuel tank. The control part generates a fuel leakage control signal according to the measured amount of the fuel and the detected pressure inside the fuel tank. According to the fuel leakage control signal from the control valve, the solenoid actuates a closing rubber (106) at the final outlet of a roll over valve (ROV), and additionally opens or closes the final outlet.;COPYRIGHT KIPO 2013;[Reference numerals] (107) Fuel sensor; (108) Pressure sensor; (109) Control unit