V2EX throttle body

Throttle Body

定义 Definition

throttle body节气门体(汽车发动机进气系统部件),用于控制进入发动机的空气流量;在多数汽油发动机上与节气门(throttle plate)及相关传感器/执行器一起工作,从而影响怠速、加速与动力输出。(不同车型可能为机械拉线或电子节气门控制。)

发音 Pronunciation (IPA)

/θrtl bdi/

例句 Examples

The mechanic cleaned the throttle body to fix the rough idle.
技师清洗了节气门体,以解决怠速不稳的问题。

If the throttle body is sticking or its sensor is faulty, the engine may hesitate during acceleration and trigger a warning light.
如果节气门体卡滞或其传感器故障,发动机加速时可能会迟滞,并点亮故障警告灯。

词源 Etymology

throttle 原意与“扼住、使窒息”有关,后来引申为“限制(流量)”,在机械与交通语境中常指“油门/节流装置”;body 在工程领域常表示“本体/壳体/总成”。合起来 throttle body 指“用于节流控制的本体总成”,即进气系统里控制空气流量的部件。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Bosch Automotive Handbook(博世《汽车手册》):在发动机管理与进气系统章节中讨论节气门体与相关控制。
  • Automotive Technology: A Systems Approach(《汽车技术:系统方法》):在燃油喷射与进气控制部分介绍 throttle body 的结构与故障表现。
  • Haynes Repair Manual / Chilton Repair Manual(海恩斯/奇尔顿维修手册系列):在具体车型的进气系统维护步骤中常出现 “clean the throttle body(清洗节气门体)”。
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