| 可旋气门变相异升程汽油机缸内涡流稳态特性 |
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| 引用本文： | 张士强,李春书,戴俊,刘瑞林,李俊阳. 可旋气门变相异升程汽油机缸内涡流稳态特性[J]. 内燃机学报, 2019, 0(3): 236-243 |
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| 作者姓名： | 张士强 李春书 戴俊 刘瑞林 李俊阳 |
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| 作者单位： | 河北工业大学机械工程学院;唐山学院交通与车辆工程系;军事交通学院汽车工程系 |
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| 基金项目： | 国家自然科学基金资助项目(51246010);河北省高层次人才资助项目(A201803023);河北省高等学校科学技术研究资助项目(Z2018028) |
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| 摘 要： | 针对4气门汽油机为获得缸内大尺度涡流减小进气流量的问题,提出可旋气门变相异升程方法,即采用带背脊气门旋转加强涡流,并通过调整进气凸轮相异角改变两个进气门升程差调整涡流.仿真与试验证实,在稳态流动状态下,随着相异角的增加,涡流尺度增加.存在相异角时,在凸轮轴转角小于80°CaA和大于100°CaA的情况下,分别在缸内产生一次较大尺度涡流,且方向相反.研究表明:气门旋转可促进大尺度涡流的产生,可旋气门变相异升程在不减小进气量的情况下可以对缸内涡流运动进行调节,相异角为8°时,涡流比可达0.51,平均流量系数偏差仅为0.9%.
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| 关 键 词： | 汽油机 4气门 可旋气门 相异升程 相异角 涡流 |
In-Cylinder Swirl Steady Characteristics in a Gasoline Engine with Variable Dissimilitude Lift of a Rotating Valve |
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| Zhang Shiqiang,Li Chunshu,Dai Jun,Liu Ruilin,Li Junyang. In-Cylinder Swirl Steady Characteristics in a Gasoline Engine with Variable Dissimilitude Lift of a Rotating Valve[J]. Transactions of Csice, 2019, 0(3): 236-243 |
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| Authors: | Zhang Shiqiang Li Chunshu Dai Jun Liu Ruilin Li Junyang |
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| Affiliation: | (School of Mechanical Engineering,Hebei University of Technology,Tianjin 300131,China;Department of Transportation and Vehice Engineering,Tangshan University,Tangshan 063000,China;Department of Military Vehicle,Military Transportation University,Tianjin 300161,China) |
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| Abstract: | Zhang Shiqiang;Li Chunshu;Dai Jun;Liu Ruilin;Li Junyang(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300131,China;Department of Transportation and Vehice Engineering,Tangshan University,Tangshan 063000,China;Department of Military Vehicle,Military Transportation University,Tianjin 300161,China) |
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| Keywords: | gasoline engine four-valve rotating valve dissimilitude lift dissimilitude angle swirl |
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