| 摘要 |
An internal combustion engine, particularly suitable for a vehicle, is provided with a plurality of combustion cylinders, a first exhaust manifold, a second exhaust manifold and an intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders. An EGR system is disposed in fluid flow communication between the first exhaust manifold and the intake manifold. A turbocharger includes a compressor having an inlet receiving combustion gas and an outlet in fluid flow communication with the intake manifold. A turbine is drivingly coupled to the compressor, and has a turbine casing and a turbine wheel. The turbine casing defines separate first and second inlet paths for exhaust gas flow from the first and second exhaust manifolds. Efficiency and performance are improved by preserving pulse energy in one exhaust manifold flow, and increasing back pressure in the manifold providing EGR flow.
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