When cold WFI is needed, the cooling mode (fig. 5) is turned on by an air switch, which closes the recirculation valve and opens the cooling water valve. Within seconds cold WFI is available.
当需要冷却注射水时，系统通过一个空气开关打开冷却模式（图5 ），同时关闭了循环水阀门打开了冷却水阀门，只需几秒钟，就可以得到冷却注射水了。
A check valve exhaust gas recirculation (EGR) system, which makes effective use of intake and exhaust pressure waves, was proposed for turbocharged diesel engines.
提出了采用单向阀利用进排气压力波动的废气再循环(EGR)系统。
Remove the blanking plugs from the cabin recirculation fan (15), the sleeve (1) and from the check valve (7).
从客舱再循环风扇（15）上拆下堵盖、从单向活门上拆下衬套。
The key technologies to lower the exhaust emission, included the in-cylinder control, exhaust gas recirculation, variable geometry turbo, 4-valve, common rail and after-treatment are presented.
阐述了降低排放的关键技术，包括缸内控制、废气再循环、可变涡轮增压、4气阀、共轨和排气后处理技术。
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。
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。
应用推荐