Patent ID: 8069664

Claim:
A supercharged engine comprising: a charge air intake and an engine exhaust outlet a positive displacement supercharger having a compressed air outlet connected to the engine charge air intake; a combined charge air and bypass throttle control valve comprising a rotary body throttle valve including a rotary valve element received in a mating recess of a valve housing, the housing having a throttle air inlet and a throttle air outlet extending in alignment with one side of the housing recess and a bypass air inlet through a side of the housing opposite from said one side; the rotary body having a charge air passage extending through one side of the body and aligned with the housing throttle air inlet and throttle air outlet in a first rotary position of the body allowing open passage of charge air through the housing air inlet and outlet; and the rotary body having a bypass passage through a side opposite said one side, the bypass passage communicating the bypass air inlet with the throttle air outlet in a second rotary position of the rotary body in the valve housing wherein the charge air passage is blocked and the bypass passage is fully open; the rotary body having intermediate positions between the first and second rotary positions wherein the charge air passage and the bypass passage are each partially open, allowing varying degrees of charge and bypass airflow through the housing depending upon the angular intermediate position of the rotary body.