凸轮驱动的液压全可变气门机构研究  

Research on Cam Driven Hydraulic Fully Variable Valve Mechanism

作　　者：刘波澜[1] 余锡洋 王晓刚 颜超 于飞[1] 王文泰 韩耀辉 LIU Bo-lan;YU Xi-yang;WANG Xiao-gang;YAN Chao;YU Fei;WANG Wen-tai;HAN Yao-hui(Reseach Center of Power Machinery, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学动力系统工程研究所,北京100081

出　　处：《北京理工大学学报》2020年第9期935-940,共6页Transactions of Beijing Institute of Technology

基　　金：国家部委预研项目(3030021321704)。

摘　　要：考虑到电液式可变气门大多需要高响应性的电磁阀,成本高昂控制复杂,而目前市面上技术较为成熟且应用较广VVT和VVL技术,对于配气参数的调节是有限且有级的.作者设计了一种凸轮驱动的可变液压气门机构,并进行了台架试验研究.该可变液压气门机构的提前泄油量的调节可以使气门升程和关闭角同时可变,而延后压油量的调节可以使气门升程,开启角和关闭角均可变.结果表明,所设计的可变气门机构实现了气门开启角,关闭角和气门升程的配气参数全无极可变,并且该系统成本低廉、控制方便.At present,the electro-hydraulic variable valve is the development trend of variable valve technology.However,most electro-hydraulic variable valves require high-responsiveness solenoid valves,which are costly and complex to control.Besides,VVT and VVL technologies,which are mature and widely used in the market,are limited and hierarchical in regulating valve parameters.To solve the problems,a cam-driven variable hydraulic valve mechanism was developed and the bench test was carried out.The results show that,the designed mechanism can achieve full continuous variable of open angle,close angle and valve lift.And the cost of the system is lower and its control operation is convenient.

关 键 词：可变气门机构 凸轮驱动 液压 全可变 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]