| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device for an internal combustion engine capable of promoting introduction of exhaust gas at supercharging time for the internal combustion engine while suppressing reduction of output of the internal combustion engine and worsening of response property of the exhaust gas recirculation device. <P>SOLUTION: This exhaust gas recirculation device 15 is applied to the internal combustion engine 1 provided with a mechanical supercharger 5 in an intake passage 3. The intake passage of the internal combustion engine 1 has a first branched passage 31 and a second branched passage 32 branched from a branched position 3a on the downstream side of the mechanical supercharger 5 to lead intake into the same cylinder 2 of the internal combustion engine 1 separately. This device 15 is provided with an exhaust gas recirculation passage 16 for leading exhaust gas from an exhaust passage 4 into the first branched passage 31 of the internal combustion engine 1 and a supercharging pressure adjusting valve 18 arranged in the first branched passage 31 between the branched position 3a in the intake passage 3 and an exhaust gas introducing position 3b for introducing exhaust gas in the exhaust gas recirculating passage 16 and capable of adjusting opening between a fully closed position for closing the first branched passage 31 fully and a fully opened position for opening the first branched passage 31 fully. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
