| 两级增压涡轮几何参数对发动机性能的影响研究 |
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| 引用本文： | 谢磊,张扬军,诸葛伟林,张树勇. 两级增压涡轮几何参数对发动机性能的影响研究[J]. 车用发动机, 2011, 0(6): 33-37 |
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| 作者姓名： | 谢磊 张扬军 诸葛伟林 张树勇 |
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| 作者单位： | 清华大学汽车安全与节能国家重点实验室,北京,100084;中国北方发动机研究所柴油机高增压国家级重点实验室,山西大同,037036 |
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| 摘 要： | 基于涡轮通流模型,建立两级增压通流仿真平台,探讨了两级涡轮几何参数的改变对发动机性能的影响规律及原因,采用该平台对某车用两级增压柴油机进行仿真研究,并完成两级涡轮新的匹配设计.匹配结果表明,通过合理设计两级涡轮几何参数,可使该发动机低速扭矩提高7.4％,燃油消耗率降低6.9％.
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| 关 键 词： | 涡轮增压 两级增压 涡轮通流模型 几何参数 性能 匹配 |
Influence of Geometry Parameters for Two-stage Supercharging Turbine on Diesel Engine Performance |
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| XIE Lei,ZHANG Yang-jun,ZHUGE Wei-lin,ZHANG Shu-yong. Influence of Geometry Parameters for Two-stage Supercharging Turbine on Diesel Engine Performance[J]. Vehicle Engine, 2011, 0(6): 33-37 |
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| Authors: | XIE Lei ZHANG Yang-jun ZHUGE Wei-lin ZHANG Shu-yong |
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| Abstract: | Based on turbine through-flow model,the platform of two-stage turbocharging through-flow simulation was established and the influences of two-stage turbine geometry parameters on engine performance were discussed.Based on the platform,a vehicle two-stage turbocharging diesel engine was simulated and the match design of the two-stage turbine was completed.The simulation results show that the appropriate geometry parameters of two-stage turbocharger can make the low-speed torque increase by 7.4% and fuel consumption decrease by 6.9%. |
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| Keywords: | turbocharging two-stage turbocharging turbine through-flow model geometry parameter performance match |
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