Method and group for the LPG feeding of an internal combustion engine
AssigneeMTM Corporation
InventorDanilo Ceratto
Life of this patent
Estimating the term…
Abstract
Method and group for feeding LPG to an internal combustion engine according to which during some engine operation instants the temperature of the LPG fed to injectors is determined and, for each temperature value, a correspondent value of a maximum optimal pressure is determined so that LPG remains in gaseous phase; an incoming LPG real pressure to the injectors is adjusted so that it is substantially the same of maximum optimal determined pressure and the gas flow from injectors is controlled according to the adjusted effective pressure of engine inlet camera and of the LPG temperature.
Claims14
Method for feeding LPG to an internal combustion engine, the method comprising the phases of sending, through injectors (4) 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 almost 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.
Group for the feeding of LPG to an internal combustion engine, the group comprising injectors means to feed a variable LPG flow in gaseous phase to the engine, and being characterized by the fact of further comprising first means of determination to determine in a plurality of instants of operation of the engine correspondent temperatures of the LPG sent to the said injectors means, second means of determination to determinate, for at least part of the above temperatures of the LPG, a correspondent value of a maximum optimal pressure of the LPG so that the LPG remains in gaseous phase, and adjusting means to adjust the effective pressure of the LPG going to the means injectors in order that it is substantially equal to the correspondent value of determined maximum optimal pressure value.
Dependencies are inferred from the claim text.