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两段式可变升程技术对发动机性能影响研究 被引量:5

Research of Influence of 2-stage Variable Valve Lift Technology to Engine Performance
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摘要 研究了两段式可变气门升程技术的基本原理、应用现状,建立GT-Power发动机仿真模型进行性能模拟,分析大、小气门升程下发动机泵气损失、燃烧改善及其与EGR配合使用等对于发动机燃油经济性的影响,并对连续式气门升程技术的工程应用提出了展望。 Based on customer project and market requirement, physics theory of 2-stage VVL engine and its applications are researched. A GT-Power simulation model is founded to research the contribution to fuel economy with 2-stage VVL, especially on drag torque, burning efficiency and external EGR. Finally, the paper also prospects the application of continuous VVL in engineering.
出处 《上海汽车》 2014年第6期54-60,共7页 Shanghai Auto
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