CONTROL METHOD OF FUEL PARAMETERS IN FUEL FEED SYSTEM OF MULTIFUEL ENGINE (VERSIONS)

摘要

FIELD: engines and pumps.SUBSTANCE: invention relates to engine building industry and can be used at stationary plants at operation of an engine on different types of fuel, namely on oil. The invention proposes a control method of fuel parameters in a fuel feed system of a multifuel engine, which consists in the fact that the engine start is performed on standard fuel; then, non-standard fuel is supplied to the engine by means of an injection pump (IP) (6); pressure of non-standard fuel is controlled in a make-up engine line by changing IP rotation speed and temperature of non-standard fuel is controlled at the inlet of fuel boost pump (FBP) (10) located at the inlet of the high pressure fuel pump (HPFP) of the engine by heating or cooling of excess non-standard fuel that is fed from HPFP to the inlet of FBP (10) or IP (6).EFFECT: possibility of controlling fuel parameters by changing its pressure and temperature at engine operation on fuels with a wide range of viscosities; exclusion of a possibility of mixing standard and non-standard fuel when switching-over the make-up line from one type of fuel to another and simplification of a fuel feed system.4 cl, 2 dwg