| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problems: when recirculated gas is returned to intake air in an intake air connector leading from an air cleaner to an intake manifold to improve combustibility of exhaust gas, the recirculated gas is mixed with oil in the intake air to form deposits, thereby deteriorating operability of a valve in a recirculated gas inflow port. SOLUTION: A gutter-shaped portion (30) is provided on the upstream side of the recirculated gas inflow port (13), and the oil produced on the inner wall surface of the intake air connector (10) is stemmed on a side upstream of the recirculated gas inflow port and is led to flow to the side of the intake manifold in a position not corresponding to the valve portion (21) of an EGR valve (20). COPYRIGHT: (C)2011,JPO&INPIT
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