V2EX piston ring

Piston Ring

释义 Definition

活塞环:安装在发动机活塞外圆沟槽中的金属环,用于密封燃烧室、控制机油、传导热量,从而维持压缩压力并减少漏气与机油消耗。(也常指压缩环与油环等类型的统称。)

发音 Pronunciation (IPA)

/pstn r/

例句 Examples

The mechanic replaced the piston ring.
修理工更换了活塞环。

Worn piston rings can cause low compression, blue smoke from the exhaust, and increased oil consumption, especially under heavy load.
磨损的活塞环可能导致压缩不足、排气冒蓝烟以及机油消耗增加,尤其在高负载时更明显。

词源 Etymology

piston 源自法语 piston,与“推、压”的动作有关,指在气缸内往复运动的部件;ring 源自古英语 hring,意为“环状物”。合起来 piston ring 字面即“活塞上的环”,在工程语境中专指用于密封与控油的功能性金属环。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance(《禅与摩托车维修艺术》):书中涉及摩托车维护与机械部件讨论的语境里常出现发动机零件术语(包括活塞、气缸、环等相关表述)。
  • John Muir, How to Keep Your Volkswagen Alive: A Manual of Step-by-Step Procedures for the Compleat Idiot:经典通俗维修书,关于发动机翻修与压缩问题的章节会具体提到活塞环等部件。
  • 通用工程/维修类权威资料(如 Automotive Engines、SAE 技术出版物与维修手册):该词最常见于技术写作与工程说明文体中。
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