Patent ID: 7207322
Filing Date: 2007-04-24
Classification: F02B,Y02T

Abstract:
1. An intake air control system for use with an internal combustion engine, said system adapted to be operatively connected to an intake side of the engine to control the flow of air from an air supply conduit to the engine, said system comprising: a rotary valve rotatable to selectively allow and restrict a flow of air through the air supply conduit to the engine, said rotary valve comprising a cylinder with a bell-shaped region, said bell-shaped region including a detent; a rotary actuator; and an impulse coupling including a spring member resiliently drivingly coupling said rotary actuator to said rotary valve, said impulse coupling further including a second actuator which is operatively engageable with said detent, whereby said spring member is operable to selectively transmit rotational torque from said rotary actuator to said rotary valve.