V2EX tappet

Tappet

Definition / 定义

tappet(名词):(发动机/机械)挺柱、挺杆,用于把凸轮轴的运动传递给气门机构(如推杆、摇臂、气门),常见于气门传动系统中。(也常指液压挺柱 hydraulic tappet/lifter

Pronunciation / 发音

/tpt/

Examples / 例句

The mechanic replaced a worn tappet.
技师更换了一个磨损的挺柱。

If the tappets are out of adjustment, the engine may tick loudly and lose efficiency over time.
如果挺柱间隙没有调好,发动机可能会发出明显的“哒哒”声,并且随着时间推移效率下降。

Etymology / 词源

tappet 源自英语中与 tap(“轻敲、轻击”)相关的词根意象,形容该部件在工作时与凸轮等部件接触、受力并产生类似“轻敲/顶起”的动作与声音。后来在机械与内燃机领域固定为“挺柱/挺杆”这一专门术语。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Haynes Repair Manual(海恩斯汽车维修手册,多个车型版本):常在气门机构与配气相位、气门间隙调整章节中出现 tappet
  • Bosch Automotive Handbook(《博世汽车手册》):在发动机结构与气门传动系统相关条目中会使用 tappet(含液压挺柱等)。
  • Automotive Technology: A Systems Approach(《汽车技术:系统方法》) 等汽车工程教材:在讲解发动机配气机构(valve train)时经常出现该词。
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