| 摘要 |
PROBLEM TO BE SOLVED: To fully promote mixing of the intake air and EGR without reducing the volumetric efficiency in spite of a very simple structure. SOLUTION: A branching passage 8 is formed as a bypass of an intake throttle valve 7, and an EGR passage 18 is connected to the branching passage 8. An orifice 22 for disturbing the flow is provided in the branching passage 8. The branching passage 8 and an intake passage 2 are reconnected in the turbulence developing range of the intake air formed just after the intake throttle valve. |
