摘要
新型电控燃油喷射系统有利于降低柴油发动机的排放和油耗。高速强力电磁阀是决定电控燃油喷射系统性能的关键部件,其动态响应特性直接影响燃油喷射特性。在电磁阀的衔铁和电磁铁之间存在很薄的油膜,影响电磁阀的动态响应特性。运用层流基本理论进行理论简化分析,并在此基础上进行了仿真计算,结果与实际试验吻合良好,并探索出了各参数对衔铁阻尼特性的影响,为参数的匹配提供了依据。
In electronic control diesel fuel injection systems of modern diesel engines, the high-speed, powerful solenoid valve is the key element to determine the performance of the systems. And there is a thin gap of fuel film exists between the armature and solenoid. This squeeze film directly influences the dynamic response characteristics of the valve. An analysis by laminar flow is undertaken to evaluate squeeze film behavior and determine optimum venting arrangement for improved valve performance.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2003年第7期84-88,共5页
Journal of Mechanical Engineering
基金
国家自然科学基金(59406006)
国家'九五'科技攻关(96-A16-01-03)
国家重点基础研究发展规划(973)(2001CB209205)资助项目
关键词
电控燃油喷射系统
高速强力电磁阀
挤压油膜
阻尼
柴油机
Electronic control diesel fuel injection system High-speed powerful solenoid valve Squeeze film
