Schemes of variable compression ratio (VCR), variable exhaust gas recirculation (EGR), variable exhaust valve timing, and EGR with stratification by tumble charge flow are recommended.
推荐可变压缩比（VCR）方案、可变废气再循环率（EGR）方案、可变排气门关闭时刻方案，以及废气再循环滚流分层充气方案等。
The timing of the rotary valve, which is a key operating parameter for cryocoolers, determines the relationship between the intake and exhaust process.
而平面旋转阀的时序又是低温制冷机的一个重要参数，它决定了制冷机系统进气、排气过程之间的相互关系。
应用推荐