LPGLNG LPG The method against the Remnants contamination of LPGLNG fuel control compartment with LPGLNG vaporizer

摘要

PURPOSE: A remaining impurity in LPG evaporator is removed automatically without a user's operation, thereby preventing contamination of LPG fuel device. CONSTITUTION: In a method for preventing LPG impurity, when an engine is stopped, a power is not supplied from an ignition switch(60) so as to prevent operation of a cut-off solenoid valve(20). While driving, though power is supplied from the ignition switch, a timer relay control(40) does not output power to prevent operation of the cut-off solenoid valve. If the engine stops while driving, in a certain time after natural evaporation of LPG fuel, power is output for a certain time to operate the cut-off solenoid valve(20).