| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reformed gas recirculation device capable of properly controlling a temperature of a reforming catalyst and stably supplying reformed gas. <P>SOLUTION: In a reformed gas recirculation device 100 recirculating reformed gas into an intake system comprises: a first exhaust passage 31; a second exhaust passage 32 merging with the first exhaust passage 31; an exhaust purifying unit 40 provided at the first exhaust passage 31; a fuel supply part 53 supplying fuel into the second exhaust passage 32; an exhaust reforming unit 50 having a purification catalyst capable of purifying exhaust and a reforming catalyst capable of generating reformed gas from the exhaust flowing through the second exhaust passage 32 and the fuel supplied from the fuel supply part 53; a communication passage 55 branching from the second exhaust passage 32 downstream of the exhaust reforming unit 50 and communicating with the intake system; a regulation valve 54 capable of regulating a flow rate of the exhaust flowing in the second exhaust passage 32; a switching valve 56 capable of switching a gas passage of the second exhaust passage 32 to the first exhaust passage 31 side or the communication passage 55 side; and a control part 60 controlling the regulation valve 54 and the switching valve 56. <P>COPYRIGHT: (C)2013,JPO&INPIT |
