| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an internal combustion engine with a turbosupercharger improving an EGR rate while suppressing an increase in vacuum of an intake passage. <P>SOLUTION: This internal combustion engine includes: the turbosupercharger 4; an exhaust bypass passage 2c bypassing the turbine 4a of the turbosupercharger 4; and an exhaust system 1 including the exhaust bypass passage 2c. A parameter correlated with the resonance frequency of the exhaust system 1 including the exhaust bypass passage 2c is set so that natural vibration is generated in the exhaust system 1 within a specific operational area where the exhaust back pressure of the exhaust system 1 is relatively reduced in comparison with the other operational area. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
