| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase and decrease an EGR gas amount with favorable responsiveness, while enabling effective recovery of exhaust energy by an intake supercharger regardless of supply of an adequate EGR gas amount and the increase and decrease of the EGR gas amount. <P>SOLUTION: An EGR line connects, regarding a gas flow direction, a middle part of an exhaust line between an intake turbine and an EGR turbine and an upstream side in the suction flow direction from an intake compressor in a suction line. A bypass line which connects the middle part of the exhaust line and the downstream side in the gas flow direction from the EGR turbine and into which a first control valve is inserted, a second control valve inserted in the EGR line at the downstream side in the gas flow direction from the EGR compressor, and an EGR discharge line which connects a part between the EGR compressor and the second control valve regarding the gas flow direction in the EGR line and into which a third control vale is inserted, are provided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
