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在一台重型柴油机排气系统中装入一台涡轮,可吸收没有涡轮时将被废弃的排气能量。 寇敏斯发动机有限公司用其已经涡轮增压中冷的298千瓦(400马力)柴油机发展成了一台复合涡轮发动机。新发动机提高功率12.5%;燃料消耗量改善14.8％。严格地说,复合涡轮本身产生的燃料消耗量的改善是4.6％。且改装需要的变动很小,有可能将现有的发动机改装为复合涡轮发动机。 发动机的设计过程就是一个各个影响性能的因素如缸径、冲程、压缩比、增压压力、喷油压力等与设计所选材料热强度和结构之间的折衷处理。降低排污和大幅度改进热效率将成
Installing a turbine in a heavy-duty diesel engine exhaust system absorbs the exhaust energy that would otherwise be discarded without a turbine. Coombs Engine Co., Ltd. has evolved into a compound turbine engine using its already turbocharged 298 kW (400 hp) diesel engine. New engine boosts power by 12.5%; fuel consumption improves by 14.8%. Strictly speaking, the improvement in fuel consumption by the composite turbine itself is 4.6%. With minor modifications required, it is possible to retrofit an existing engine into a compound turbine engine. The engine design process is a compromise between performance factors such as bore size, stroke, compression ratio, boost pressure, injection pressure, etc., and the thermal strength and structure of the chosen material. Reduce emissions and significantly improve thermal efficiency will become