Patent ID: 6363900
Filing Date: 2002-04-02
Classification: B29C,B29K,B29L,F02M,F05C

Abstract:
A method of manufacturing a synthetic resin-made intake manifold comprising a volumetric air-intake section communicating with an intake air supply source through an inlet pipe, and a plurality of outlet pipes connected at one end to cylinders of an internal combustion engine through a mounting member and at the other end to the volumetric air-intake section, the volumetric air-intake section and the outlet pipes being formed of a synthetic resin, wherein the volumetric air-intake section and the outlet pipes are separately formed by injection molding and are then assembled and jointed into unity,wherein the mounting flange is integrally formed with the volumetric air-intake section during the process of injection molding of the volumetric air-intake section; and wherein a flange face of the mounting flange is substantially parallel to an axis of the inlet pipe; and wherein each of the outlet pipes is formed of a bent pipe and opposite ends of its axis form an angle of at least about 180 degrees in a bending direction of the outlet pipe.