FIELD: engine devices and pumps.
SUBSTANCE: exhaust gas is discharged only on a part of the stroke, and on the other internal recirculation is performed by compressing recirculating portion of exhaust gas. Air is fed into the combustion chamber with the pressure and temperature of compression final stage. Charge of air is heated up to the flash point of fuel due to the heat from the compression of exhaust gas recirculating part, whereupon fuel is injected on the first stroke, the combustion of working mixture is performed, and then, during its expansion, cyclic injection of compressed air and fuel, the combustion and expansion of the whole working mixture amount are performed until the end of the first stroke. Wherein, depending on the operation mode of engine, both the quantitative ratio of air and fuel portions, and their cyclicity, and also the quantity of recirculating portion of exhaust gas are regulated.
EFFECT: improving the economy when simplifying the design.
2 dwg
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