V2EX rocker-arm

Rocker-Arm

释义 Definition

rocker-arm(也常写作 rocker arm)摇臂;发动机配气机构中的杠杆部件,用来把凸轮轴(或挺柱/推杆)的运动传递给气门,使气门开启与关闭。

发音 Pronunciation (IPA)

/rkr rm/

例句 Examples

The mechanic replaced a worn rocker-arm.
技师更换了一个磨损的摇臂。

If the rocker-arms are out of adjustment, the engine may tick loudly and lose power at higher speeds.
如果摇臂间隙调整不当,发动机可能会发出明显的“哒哒”声,并在高速时动力下降。

词源 Etymology

rocker 来自 rock(摇动),表示“来回摆动的东西”;arm 表示“臂、杠杆臂”。合起来指一种“像手臂一样摆动的杠杆部件”,用于在发动机中“摇动”并推动气门机构工作。

相关词 Related Words

文学与作品 Literary Works

该词更常见于汽车/机械类非虚构作品与维修手册中(在小说等文学作品里相对少见),例如:

  • Automotive Technology: A Systems Approach(汽车技术教材,讨论配气机构与摇臂结构)
  • How to Rebuild Your Small-Block Chevy(发动机重建指南,涉及 rocker arm 安装与调整)
  • Haynes Repair Manual / Chilton Repair Manual(常见维修手册系列,常出现 rocker arm 的检修步骤)
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