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TWO TURBOCHARGER EXHAUST GAS RE-CIRCULATION SYSTEM HAVING A FRIST STAGE VARIABLE NOZZLE TURBINE
TWO TURBOCHARGER EXHAUST GAS RE-CIRCULATION SYSTEM HAVING A FRIST STAGE VARIABLE NOZZLE TURBINE
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机译:具有第一级可变喷嘴涡轮的两个涡轮增压气体再循环系统
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摘要
An internal combustion engine, particularly suitable for a motor vehicle, is provided with a plurality of combustion cylinders, at least a first exhaust manifold and a second exhaust manifold and at least one intake manifold. Each exhaust manifold is coupled with a plurality of the combustion cylinders. Each intake manifold is coupled with a plurality of the combustion cylinders. A first turbocharger includes a first turbine having at least one inlet and an outlet, and a first compressor having an inlet and an outlet. The at least one first turbine inlet is fluidly coupled with the first exhaust manifold and includes a controllable, variable intake nozzle. A second turbocharger includes a second turbine having an inlet and an outlet, and a second compressor having an inlet and an outlet. The second turbine inlet is fluidly coupled with the second exhaust manifold. The first compressor outlet is fluidly coupled with the second compressor inlet. The engine has improved performance and efficiency, with an efficient and compact turbocharger arrangement.
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