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廣州油泵廠家:軌管的作用是什么

2019-09-06

(1)任務:共軌管的任務是存儲高壓燃油,高壓泵的供油和噴油所產生的壓力波動由共軌管的容積進行緩沖。在輸出較大燃油量時,所有氣缸共用的共軌壓力也應保持恒定,從而確保噴油器打開時噴油壓力不變。共軌管
共軌上安裝有:
    ①共軌壓力傳感器。
    ②共軌壓力限壓閥。
    ③流量限制器。
(2)結構:由于柴油機的安裝條件不同,帶流量限制器(選裝件)、共軌壓力傳感器、調壓閥和限壓閥的共軌管可進行不同的設計。

(3)工作原理:共軌管中通常注滿了高壓燃油,充分利用高壓對燃油的壓縮來保持存儲壓力,并用高壓泵來補償脈動供油所產生的壓力波動,因此即使從共軌管中噴射出燃油,共軌管中的壓力也近似為恒定值。共軌管






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