V2EX valve train

Valve Train

释义 Definition

(汽车/发动机)配气机构;指发动机中控制进、排气门开闭的一整套部件系统,常包括凸轮轴、挺柱/液压挺柱、摇臂、推杆(视结构而定)、气门弹簧与气门本体等。

发音 Pronunciation

/vlv tren/

例句 Examples

The mechanic checked the valve train for unusual noise.
机械师检查了配气机构是否有异常噪音。

A worn cam lobe can throw the valve train out of spec, reducing power and increasing emissions.
凸轮凸起面磨损会使配气机构偏离设计规格,导致动力下降并增加排放。

词源 Etymology

“Valve”源自拉丁语 valva(门扇、阀门之意),在工程语境中指“控制流体/气体通断的阀”。“Train”在技术英语里常表示“一串相互联动的装置/传动链”(如 gear train 齿轮传动系)。合起来“valve train”直译为“气门的联动机构/传动链”,即控制气门动作的整套机构。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Internal Combustion Engine Fundamentals(John B. Heywood)以工程分析方式讨论配气机构设计与动态特性,常用到“valve train”。
  • The Internal-Combustion Engine in Theory and Practice(Charles Fayette Taylor)涉及气门机构运动学与工作原理。
  • Automotive Engineering Fundamentals(Richard Stone / 或同类汽车工程教材版本中常见该术语)在发动机结构章节中使用“valve train”描述配气系统。
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