| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an EGR device capable of efficiently re-circulating EGR gas without dropping supercharging efficiency. <P>SOLUTION: A bulkhead 4a dividing an exhaust manifold 3 of a supercharged engine 2 provided with VGT 1 into main channels 5a, 5b directly connecting a collection part to an exhaust gas introduction port of the VGT 1 and auxiliary channels 6a, 6b connecting a collection part to the exhaust gas introduction port of the VGT 1 through variable restrictors 7a, 7b is provided. EGR quantity and VGT 1 can be independently operated by providing EGR passages 8a, 8b branching off of the auxiliary channels 6a, 6b and reaching to the intake passage. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
