Patent ID: 8176737

Claim:
An exhaust system for an engine, comprising: a first exhaust manifold configured to receive exhaust from the engine; a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold; an exhaust gas recirculation circuit; a fixed geometry turbocharger having a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold; and a recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust manifold, and the exhaust gas recirculation circuit, the recirculation control valve having a valve element movable to selectively adjust a flow of exhaust in the first and second volute, while directing an additional flow from the recirculation control valve to the exhaust gas recirculation circuit, the valve element having a closed position blocking the additional flow from passing to the exhaust gas recirculation circuit.