| 摘要 |
PURPOSE: An EGR gas mixing pipe of a vehicle engine is provided to optimize EGR gas distribution for each cylinder of an intake port by mixing fresh air with EGR gas to the maximum. CONSTITUTION: An EGR gas mixing pipe of a vehicle engine comprises an intake manifold(1), a gas supply pipe(2), an air supply pipe(3), a mixing pipe(4), and a vortex induction pipe. The gas supply pipe supplies EGR gas. The vortex induction pipe has a slot formed perpendicular to the flow direction of fresh air in order to make the fresh air moving through the air supply pipe whirl and mixed with EGR gas in the mixing pipe. The vortex induction pipe is installed so that its end is located apart from the inner surface of the air supply pipe.
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