Patent ID: 8210146

Claim:
An intake path gas introducing device wherein the intake path gas introducing device introduces gas from outside an intake path of an intake manifold into the intake path in the intake manifold of an internal combustion engine in which two manifold arrays are aggregated on an upstream side and separated on a downstream side of an intake gas flow to distribute the intake gas to intake ports of two banks, the intake path gas introducing device comprising: two plate-shaped side wall portions that are provided integrally between two manifold arrays produced by the separation and along the manifold arrays and connected directly or indirectly at the aggregation side of the manifold arrays, thereby surrounding a columnar space extending between the manifold arrays in an arrangement direction thereof from the aggregation side of the manifold arrays; a plate-shaped bottom wall portion that forms a gas introducing passage in the arrangement direction of the manifold arrays between the plate-shaped side wall portions and the plate shape bottom wall portion by sealing a space surrounded by the two plate-shaped side wall portions by integration with the two plate-shaped side wall portions from the separation side of the manifold arrays; and openings that link the gas introducing passage to the intake path in each manifold and introduce gas from the gas introducing passage into each intake gas passage.