Patent ID: 7870849

Claim:
Method for feeding LPG to an internal combustion engine, the method comprising the phases of sending, through injectors means a variable flow rate of LPG in gaseous state towards the engine and being characterized in that to determine in a plurality of moment of engine work, respective temperatures of the LPG fed to the injectors means to determine, for at least some of said LPG temperatures, a matching optimal maximum pressure value so that the LPG stays in gaseous stage, and to regulate the effective LPG pressure in entry to the fuel injectors means in such way that the effective pressure be substantially the same of the optimal maximum value determined, wherein detecting of said pressure optimal maximum value of LPG is effected memorizing a limit curve of the LPG that separates an area of gas in gaseous phase from an area of gas in liquid phase, and by obtaining on that curve, for at least part of the above determined temperatures, correspondent values of pressure.