INTAKE MANIFOLD WITH FLAP VALVE FOR AUTOMOTIVE VEHICLES

摘要

An intake manifold for conveying air-fuel mixture from an inlet to an outlet includes a long duct and a short duct fluidly communicating between the inlet and the outlet, a junction defined at fluid connection between the long and the short duct, a flap valve and a pneumatic actuator. The junction is configured downstream of the inlet. The flap valve is disposed at the junction and a flap of the flap valve is displaceable between a first position in which the flap defines a first flow-path through said long duct circumventing the flap, and a second position in which said flap defines a second flow-path through the short duct without passing through the long duct. The pneumatic actuator regulates the movement of the flap between the first position and the second position.