V2EX piston rod

Piston Rod

释义 Definition

piston rod(活塞杆):连接活塞连杆/十字头等机构的金属杆件,用于把活塞的往复运动传递到外部机构,常见于内燃机、蒸汽机、液压缸、压缩机等设备中。

发音 Pronunciation

/pstn rd/ (英式)
/pstn rd/ (美式)

例句 Examples

The piston rod moves back and forth inside the cylinder.
活塞杆在气缸内来回往复运动。

If the piston rod is bent or worn, the engine may lose power and leak oil.
如果活塞杆弯曲或磨损,发动机可能会动力下降并出现漏油。

词源 Etymology

piston 源自法语 piston,本义与“推压、活塞式推杆”相关;rod 源自古英语 rodd,意为“杆、棍”。合起来 piston rod 字面就是“活塞用的杆”,强调其在往复机构中承担传力与导向的作用。

相关词 Related Words

文学与作品 Literary Works

  • Machinery’s Handbook(《机械工程师手册》)中在往复机构与配合公差/材料章节常出现该术语。
  • Marks’ Standard Handbook for Mechanical Engineers(《马克斯机械工程师标准手册》)在发动机与液压系统相关条目中使用“piston rod”。
  • The Internal-Combustion Engine in Theory and Practice(《内燃机:理论与实践》)等经典教材在讲解活塞连杆机构时会频繁出现“piston rod”。
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