| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed method comprises the following jobs: (a) feeding first amount of fuel in combustion chamber in compression stroke by pre-injection to produce partially homogeneous premix in combustion chamber, (b) feeding main amount of fuel in combustion chamber by main injection and combustion of fuel-air mix by self-ignition. Beginning of pre-injection is selected to allow premix to ignite after short delay of ignition while beginning of the main injection is selected to allow main amount of fuel to be injected during combustion or directly after combustion of said premix. Pre-injection is executed at crankshaft turn through 22 to 100, in particular 25 to 30, before piston TDC. Main injection is executed at crankshaft turn through 20 before piston TDC to 20 after TDC. Main injection is divided into some partial injections. In starting ICE, first partial injection is executed at crankshaft turn through 2 before TDC to 2 after TDC, while second partial injection is executed at crankshaft turn through 2 to 5 after TDC. ^ EFFECT: fast starting, higher reliability. ^ 10 cl, 2 dwg |
