柱塞泵A10VSO-140DR/31R-PPB12N00型號齊全

力士樂油泵可以分為容積式和非容積室（蝸輪式）兩種。非容積式有離心泵、軸流泵等，利用高速旋轉(zhuǎn)的葉輪使進口產(chǎn)生真空吸入液體，并在出口連續(xù)輸出壓力液體。這種泵進口與出口相通，效率隨液體粘度增加而降低，并且輸出液體量隨出口壓力升高而減少。容積式泵是通過一個封閉的空間容積的變化來實現(xiàn)吸油和壓油的。當這個封閉容積由小變大時進行吸油，由大變小時進行壓油。典型的為力士樂柱塞泵，柱塞從缸孔中拉出時吸油，壓進時壓油。這種泵進口與出口是被隔開的，效率取決于隔開吸壓油腔的各對運動零件間的結(jié)構(gòu)工藝間隙及油液的粘度等。粘度越越高，輸油量幾乎保持不變（因效率略有影響，另外壓力升高至18MPa，油液會被壓縮1%）。

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柱塞泵A10VSO-140DR/31R-PPB12N00型號齊全