| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device for an internal combustion engine capable of inhibiting formation of nitrogen oxides in exhaust gas over a wide range of engine temperature. <P>SOLUTION: A plurality of fins for heat radiation arranged in parallel in a direction along a flow direction of recirculation gas are provided in a heat exchanger 14 employed in the exhaust gas recirculation device for the internal combustion engine. The plurality of fins comprise fixed fins 15a fixed on the heat exchanger 14 and moving fins 16a movable in a direction perpendicular to the flow direction of the recirculation gas. The fixed fins 15a and the moving fins 16a are alternately arranged in the flow direction of the recirculation gas. The moving fins 16a are connected to a connection part 18 as one unit via a moving plate 16 supporting the same, and the connection part 18 is connected to an insidewall of the housing 21 of the heat exchanger 14 via a bimetal 19 exposed to the recirculation gas. <P>COPYRIGHT: (C)2010,JPO&INPIT |
