Patent ID: 8899215

Claim:
An exhaust gas recirculation (EGR) valve for an engine, comprising: a valve body that is made of aluminum and includes a gas passage therein, wherein the gas passage is a part of an EGR passage, through which EGR gas is returned from an exhaust passage to an intake passage of the engine; an outer metal ring that has a cylindrical shape and is fixed and disposed on an inner wall of the gas passage; an inner resin ring that has a cylindrical shape and is disposed on an inner peripheral wall of the outer metal ring; a butterfly valve that is configured to open or close an inside of the inner resin ring and includes a seal fitting groove at an outer peripheral edge of the butterfly valve; and a seal ring that is fitted into the seal fitting groove and seals a clearance between the butterfly valve and the inner resin ring when the butterfly valve closes the inside of the inner resin ring, wherein the inner resin ring is fixed on an inner peripheral wall of the outer metal ring by press-fitting and clamped between a body projection provided for the valve body and a metal ring projection provided for the outer metal ring.