求油泵的事情道理？
油泵的事情道理今朝较多利用的是装在油箱内的燃油泵。它由涡轮泵，卸压阀，残留压力单向阀构成。涡轮泵是由电念头发动叶轮，从油箱内吸出燃油，电念头需要靠燃油冷却并润滑，假如油量淘汰的话大概会使电念头烧坏；卸压阀浸染是当油泵出口压力超值是，卸压阀会打开并卸出多余的油；残留压 
  油泵的事情道理油泵有许多范例的，  

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