谷艳华,胡乃硕,高峰军,李华,王有坤,郭英男.无凸轮轴发动机电液驱动配气机构阻尼孔优化设计[J].农业机械学报,2012,43(9):21-26.
Gu Yanhua,Hu Naishuo,Gao Fengjun,Li Hua,Wang Youkun,Guo Yingnan.Optimization of Orifices on Electro-hydraulic Control Camless Valve Actuator[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(9):21-26.
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无凸轮轴发动机电液驱动配气机构阻尼孔优化设计   [下载全文]
Optimization of Orifices on Electro-hydraulic Control Camless Valve Actuator   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2012.09.005
中文关键词:  无凸轮轴发动机  电液驱动  配气机构  阻尼孔
基金项目:国家重点基础研究发展计划(973计划)资助项目(2007CB210004)
作者单位
谷艳华 吉林大学 
胡乃硕 吉林大学 
高峰军 吉林大学 
李华 吉林大学 
王有坤 吉林大学 
郭英男 吉林大学 
中文摘要:无凸轮轴发动机电液驱动配气机构中节流阀阻尼孔的优化设计直接影响气门运动及时响应性能和气门落座冲击性能,进而影响发动机性能。建立了配气机构中节流阀阻尼孔的数学模型,并利用该模型研究了阻尼孔直径对气门开启和落座的影响。使用AMESim搭建了配气机构的仿真模型,研究阻尼孔孔径和相对位置对气门运动的影响。结果表明,阻尼孔直径减小或者阻尼腔阻尼孔相对位置上升会使气门延迟开启;阻尼孔直径减小或者主油路阻尼孔相对位置下降会使气门延迟关闭。优化了阻尼孔孔径和位置参数,试验表明阻尼孔优化设计结果满足发动机对配气机构中气门运动的要求。
Gu Yanhua  Hu Naishuo  Gao Fengjun  Li Hua  Wang Youkun  Guo Yingnan
Jilin University;Jilin University;Jilin University;Jilin University;Jilin University;Jilin University
Key Words:Camless engine  Electrohydraulic control  Valve actuator  Orifices
Abstract:The optimized design of orifices in the electro-hydraulic control valve actuator will affect the response and the impact of valve in the camless engine, and thus affect all aspects performance of engine. The mathematical model of the orifices in the valve actuator was designed, and the effects of the orifice’s diameter to the velocity during opening and landing were analyzed. The model of the camless electro-hydraulic valve actuator was built by using AMESim, the analysis of the influence to the diameter and related position of the valve orifices was done, the results showed that the orifice diameter decreased or the related position of damping chamber orifice increased resulted in the delay of opening time, and the orifice diameter decreased or the related position of main line orifice decreased resulted in the delay of closing time. The parameters of orifices diameter and position were optimized, and the demand of the valve was met by the optimized parameters through the experiments.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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