| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve torque by improving fuel consumption and restraining knocking by reflux of a part of exhaust gas even in the case of an operation region of the internal combustion engine wherein the pressure of new air to be compressed intake air exceeds the exhaust gas pressure in an internal combustion engine comprising a supercharger and an exhaust gas recirculation device. <P>SOLUTION: The recirculation system for an exhaust gas of an internal combustion engine comprises an exhaust gas recirculation device for refluxing a part of exhaust gas into an intake air passage in an internal combustion engine comprising a supercharger, and a supercharger for supercharging the intake air. The recirculation system further comprises a phase changing means having a pipe part communicating with the intake passage and a vessel communicating with the pipe part for storing a predetermined amount of a gas for changing the phase of intake pulsation, a switching valve disposed between the intake passage and the pipe part for controlling the communication state of the phase changing means and the intake passage, a reflux sensing means for sensing the reflux of the exhaust gas by the exhaust gas recirculation device, and a valve controlling means for actuating the phase changing means by opening the switching valve in the case the reflux sensing means senses reflux of the exhaust gas. <P>COPYRIGHT: (C)2012,JPO&INPIT |
