Patent ID: 8424502
Filing Date: 2013-04-23
Classification: F02M

Abstract:
1. An intake manifold comprising a surge tank and a plurality of intake pipes each having an inlet port, the inlet ports being connected to the surge tank, the intake manifold drawing air into the surge tank from an opening of the surge tank and supplies the air to an engine through the intake pipes, wherein the inlet ports are arranged along a flow direction of air drawn into the surge tank from the opening of the surge tank, and project into the surge tank along a direction that intersects the flow direction at the surge tank opening, wherein each adjacent pair of the inlet ports are separated only by a single common pipe wall, and wherein a distal portion of the common pipe wall projects into the surge tank, convex surfaces being formed on the sides of the distal portion, and the convex surfaces converging along the projecting direction of the distal portion.