A better design for the exhaust pipes adds to the efficiency, along with modified timing and pistons.
而优化设计的排气管和改进的计时器和活塞也有助于提高效率。
2
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。
3
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.