V2EX exhaust valve

Exhaust Valve

定义 Definition

排气阀,一种用于控制废气或蒸汽从发动机气缸、管道系统中排出的阀门装置。在内燃机中,排气阀在做功冲程结束后打开,将燃烧后的废气排出气缸。

发音 Pronunciation

/zst vlv/

例句 Examples

The mechanic found that the exhaust valve was worn and needed to be replaced.
技工发现排气阀已经磨损,需要更换。

If the exhaust valve fails to seal properly, the engine will lose compression and performance will drop significantly.
如果排气阀密封不良,发动机将失去压缩力,性能会显著下降。

词源 Etymology

exhaust 源自拉丁语 exhaurire,由 ex-(向外)和 haurire(抽取、汲取)组成,原意为"抽空、用尽"。16世纪进入英语后,逐渐引申出"排出废气"的含义。valve 源自拉丁语 valva,意为"门扇、折叠门",后用来指代控制流体通断的机械装置。两词组合构成"排气阀"这一工程术语,广泛应用于内燃机和工业管道系统中。

相关词汇 Related Words

文学与技术文献引用 Literary & Technical References

  • Zen and the Art of Motorcycle Maintenance Robert M. Pirsig(罗伯特波西格)在这部经典作品中多次涉及发动机部件的描写,包括气阀的工作原理,将机械维修与哲学思考相结合。
  • Internal Combustion Engine Fundamentals John B. Heywood 所著的内燃机工程经典教材,详细阐述了排气阀的设计、材料和热力学性能。
  • The Internal-Combustion Engine in Theory and Practice Charles Fayette Taylor 的两卷本著作,对排气阀的气流动力学和时序控制有深入分析。
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