METHOD FOR MANAGING AN ENGINE POWERED BY MULTIPLE TYPES OF FUEL (VARIANTS) Russian patent published in 2018 - IPC F02M25/08 F02D19/08 F02D41/00 F02P5/152 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in fuel management systems for internal combustion engines (ICE). Method for managing an engine powered by a multiple types of fuel, in which a blown stream flow to the engine from a plurality of vapor storage devices, each connected to a direct but equal number of multiple fuel tanks is adjusted to have the same proportion of the total blown streams, as a proportion of the liquid fuel supplied to the engine from said respective one of said multiple fuel tanks. Method includes increasing the fuel supply from one of the multiple fuel tanks containing the fuel with the highest octane rating from all the fuel tanks, when the vapor storage tank connected to the fuel tank with the highest octane fuel is not blown from its fuel vapors. In addition, the method further comprises feedback control in response to an oxygen sensor of exhaust gases for adjusting said fuel, fed from said multiple fuel tanks to the engine to maintain the fuel-air ratio in the engine near the stoichiometry.

EFFECT: invention is aimed at more rational using of fuels of different types of fuels for improving the characteristics of the engine and optimizing the regulation of the air-fuel ratio.

20 cl, 5 dwg