| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device capable of efficiently mixing high temperature exhaust gas and low temperature exhaust gas. <P>SOLUTION: As a valve element of an exhaust gas mixture ratio control valve 5 for adjusting a mixture ratio of high temperature exhaust gas and low temperature exhaust gas, a flap type valve 7 in which a normal with respect to the valve end face is inclined at a predetermined inclination angle with respect to a rotational center axis line of a valve shaft 8 is used. Due to this, the low temperature exhaust gas introduced from an EGR gas cooler 3 side to inside of a mixing chamber 33 and the high temperature exhaust gas introduced from a bypass piping 4 side to inside of the mixing chamber 33 are contacted with the flap type valve 7 inside the mixing chamber 33 and mixed while swirling toward an outlet side flow passage 34. Accordingly, since the high temperature exhaust gas and low temperature exhaust gas are mixed efficiently, the temperature of exhaust recirculating gas introduced from an exhaust gas recirculation pipe to an intake side can be accurately controlled. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
