| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhausting apparatus capable of achieving, with a simple configuration, opening and closing of a bypass passage for protecting an exhaust catalyst and exhaust pressure adjustment for recirculating a desired amount of exhaust. <P>SOLUTION: The exhausting apparatus includes the bypass passage 8 for connecting upstream and downstream parts of an exhaust passage 7 by detouring the exhaust catalyst 9 and an exhaust recirculation passage 10 branched from the exhaust passage 7 and merged to an air intake passage 5. Further, a flow path switching valve 13 in which a first valve body 13a for opening and closing the bypass passage 8 and a second valve body 13b for opening and closing the exhaust passage 7 and the bypass passage 8 are integrally operated is provided at a branched part or a merged part of the exhaust passage 7 and the bypass passage 8, and the exhaust recirculation passage 10 is branched from the exhaust passage 7 at an upstream side of the flow path switching valve 13. <P>COPYRIGHT: (C)2012,JPO&INPIT |
