FIELD: engine devices and pumps.
SUBSTANCE: method for engine (10) is that the intake air is directed from the intake manifold (22), downstream of the compressor (14), to the exhaust manifold (36), upstream of the turbine (16), by external recirculated exhaust gases (EGR) and positive overlapping of the valves (62), (64) through the cylinder (30). The direction of intake air through the external EGR is that the EGR valve (52) is opened in the EGR channel (51) located between the intake manifold (22) downstream of the compressor (14) and the exhaust manifold (36) upstream of turbines (16). The amount of air directed through the EGR and the air directed through the positive overlapping of the valves are adjusted based on the operating conditions of the engine. Invention discloses versions of described method for engine.
EFFECT: increased turbocharger performance.
20 cl, 4 dwg
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