顶置气门发动机 [机] Overhead-valve engine ; [机] Valve-in-head engine ; head engine ; V-engine
套式气门发动机 Knight engine
无气门式发动机 valveless engine
发动机气门 Engine tire valve
进气门节流发动机 intake valve throttle
上置式气门发动机 valve in-head engine
进气门延迟开闭发动机 late intake-valve-closing ; LIVC
气门式发动机 Valve engine
发动机排气门制动 EVB
发动机气门有限公司 REVL
SOHC KA24E型发动机升级成了DOHC KA24DE型，每气缸4气门，输出增加了15马力，达到了155马力(116千瓦)。
The SOHC KA24E was replaced by a new DOHC KA24DE now with 4 valves per cylinder, producing 15 more ponies HP, for a total output of 155 HP (116 kW).
在这些极端恶劣的发动机环境中，传统气门材料无法承受这种“酷刑”。
In these extreme engine environments, traditional valve materials can't stand up to the punishment.
发动机越来越小巧，却仍保留了大号发动机的动力密度，这时气门会承受更大的热量。
As engines get smaller, yet maintain the power density of a larger engine, the valves in them tend to take a greater beating.
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