variable valve timing meaning in Chinese

可变气门正时

Vvt variable valve timing
可变气门正时
Electromagnetic valve actuation ( eva ) is a new kind of variable valve timing technology
摘要电磁气门驱动是一种新型的可变配气相位技术。
Firstly , the potential of optimizing the performances of the diesel engine by variable valve timing , duration , and lift has been investigated . and the haecvvs is developed
论文首先分析了配气参数调节对发动机性能优化的潜力，然后针对135型柴油机开发了一套中压共轨电控可变气门系统。
Consequently , to optimize the engine performance in any condition and any circumstances , a need exists for a device that permits variable valve timing , variable lift and variable valve duration during engine operation . so a flexible , hydraulically actuating , electronically controlled variable valve system ( haecvvs ) for model 2135 diesel engine and the experiment bench for its performance have been deve loped
为了能够在任意工况下对发动机的性能进行优化，作者在系统分析了国内外各种可变气门系统的发展状况及特点的基础上，开发了一套中压共轨、液压驱动、电子控制可变气门系统及其性能测试台架，并对电控可变气门系统的性能进行了研究。