INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER

摘要

PROBLEM TO BE SOLVED: To provide a technique quickly increasing supercharging pressure when accelerating in an internal combustion engine with a supercharger.

SOLUTION: This internal combustion engine with the supercharger is provided with: a bypass passage 93 connecting an exhaust passage 7 on the further upstream side of a turbine 92 and an exhaust passage 7 on the further downstream side of the turbine; a bypass valve 94 regulating an amount of exhaust gas flowing in the bypass passage 93; a throttle 5 provided in an intake passage 3 on the further downstream side of a compressor 91 and regulating an amount of exhaust gas flowing in the intake passage 3; an EGR passage 41 connecting the intake passage 3 on the further downstream side of the throttle 5 and the exhaust passage 7 on the further downstream side of the turbine 92; an EGR valve 42 regulating an amount of exhaust gas flowing in the EGR passage 41; a bypass valve control means 10 closing the bypass valve 94 when decelerating; and an EGR valve control means 10 opening the EGR valve 42 when decelerating and when cutting fuel.

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