| 摘要 |
PROBLEM TO BE SOLVED: To uniformly disperse and supply auxiliary air and purge air into each cylinder of an internal combustion engine and prevent an idle speed control valve from being stained by the blowing back of combustion gas, blowing gas or the like. SOLUTION: A pipe 6 crossing an air intake passage R is disposed in the downstream of a throttle valve 2 and a blowing-out port 6a which opens in the direction except for a downstream is made near the center of the intake passage R of the pipe 6 and auxiliary air and purge air are blown out from the blowing-out port 6a into the air intake passage R. |
