排气门强制开启机构的动态性能研究  

Study on the Dynamic Characteristics of Exhaust Valve Forced Opening Mechanism

作　　者：张志峰[1] 周力[1] 杨建辉 

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室,陕西西安710064 [2]中联中科股份有限公司,湖南长沙410000

出　　处：《郑州大学学报（工学版）》2013年第2期108-111,124,共5页Journal of Zhengzhou University（Engineering Science）

基　　金：中央高校专项资金资助项目(CHD2011JC110);陕西省科学技术研究发展计划资助项目(2010K01-106)

摘　　要：排气门强制开启机构的动态性能直接影响发动机轻载节油配气机构的工作性能和可靠性,在Adams中建立了配气机构多体动力学模型,模拟分析排气门强制开启机构的动态性能.仿真分析表明,排气门强制开启力为518.7 N,与实测值556 N接近,活塞推杆能够在排气门开启最大升程附近顺利进入凹槽强制开启排气门.The dynamic characteristics of exhaust valve forced opening mechanism affect the engine light load fuel-efficient valve timing mechanism＇ s working performance and reliability directly. The paper builds the valve timing mechanism multi-body kinetics model in Adams, and analyzes the dynamic characteristics of ex- haust valve forced opening mechanism through simulation. The analysis results of simulation show that the forced opening force of exhaust valve is about 518.7 N, which is approximate to the test value 556 N, and the piston rod can enter into the groove smoothly nearby the maximum opening stroke of exhaust valve and open the exhaust valve forcedly.

关 键 词：汽车工程 排气门 开启机构 配气机构 

分 类 号：TN911.22[电子电信—通信与信息系统]