Patent ID: 7775198

Claim:
A valve assembly for controlling the flow of boosted gas and naturally aspirated gas in a turbocharged motor vehicle engine, said valve assembly comprising: a housing having a generally cylindrical inner surface; a tube disposed in the housing and having a generally cylindrical outer surface, the outer surface being substantially concentric with the inner surface of the housing and spaced apart therefrom to define a bypass channel, the tube having a generally cylindrical inside surface defining a boosted channel that extends substantially through the housing; a check valve disposed in the tube for controlling the airflow between the bypass channel and the boosted channel, the check valve having a valve body with a central channel and at least one vent extending between the central channel and the inside surface of the tube, the valve body being movable between a first position in which the vent is aligned with a flow aperture in the tube to allow airflow through the bypass channel and a second position in which the vent is blocked by the inside surface of the tube to prevent airflow therethrough and allow airflow through the boosted channel.