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德國力士樂Rexroth葉片泵，是轉子槽內的葉片與泵殼(定子環)相接觸，將吸入的液體由進油側壓向排油側的泵。力士樂Rexroth葉片泵假一賠十
Rexroth葉片泵工作原理：
一、單作用Rexroth葉片泵的工作原理
泵由轉子1、定子2、葉片3、配油盤和端蓋等部件所組成。定子的內表面是圓柱形孔。轉子和定子之間存在著偏心。葉片在轉子的槽內可靈活滑動，在轉子轉動時的離心力以及通入葉片根部壓力油的作用下，葉片頂部貼緊在定子內表面上，于是兩相鄰葉片、配油盤、定子和轉子間便形成了一個個密封的工作腔。當轉子按逆時針方向旋轉時，圖右側的葉片向外伸出，密封工作腔容積逐漸增大，產生真空，于是通過吸油口6和配油盤5上窗口將油吸入。而在圖的左側。葉片往里縮進，密封腔的容積逐漸縮小，密封腔中的油液經配油盤另一窗口和壓油口1被壓出而輸出到系統中去。這種泵在轉子轉一轉過程中，吸油壓油各一次，故稱單作用泵。轉子受到徑向液壓不平衡作用力，故又稱非平衡式泵，其軸承負載較大。改變定子和轉子間的偏心量，便可改變泵的排量，故這種泵都是變量泵。
二、雙作用德國力士樂Rexroth葉片泵的工作原理
它的作用原理和單作用葉片泵相似，不同之處只在于定子表面是由兩段長半徑圓弧、兩段短半徑圓弧和四段過渡曲線八個部分組成，且定子和轉子是同心的。在圖示轉子順時針方向旋轉的情況下，密封工作腔的容積在左上角和右下角處逐漸增大，為吸油區，在左下角和右上角處逐漸減小，為壓油區；吸油區和壓油區之間有一段封油區把它們隔開。這種泵的轉子每轉一轉，每個密封工作腔完成吸油和壓油動作各兩次，所以稱為雙作用葉片泵。泵的兩個吸油區和兩個壓油區是徑向對稱的，作用在轉子上的液壓力徑向平衡，所以又稱為平衡式葉片泵。
雙作用葉片泵的瞬時流量是脈動的，當葉片數為4的倍數時脈動率小。為此，雙作用葉片泵的葉片數一般都取12或16。
德國力士樂Rexroth葉片泵部分型號選擇參考：
PVV1-1X/018RA15RMB、PVV1-1X/018RA15RVB
PVV1-1X/018RA15UMB、PVV1-1X/018RA15UVB
PVV1-1X/018RJ15DMB、PVV1-1X/018RJ15RMB
PVV1-1X/018RJ15LMB、PVV1-1X/018RJ15UMB
PVV1-1X/018LA15DMB、PVV1-1X/018LA15UMB
PVV1-1X/027RA15DMB、PVV1-1X/027RA15DVB
PVV1-1X/027RA15RMB、PVV1-1X/027RA15LMB
PVV1-1X/027RA15UMB、PVV1-1X/027RA15UVB
PVV1-1X/027RJ15DMB、PVV1-1X/027RJ15DVB
PVV1-1X/027RJ15LMB、PVV1-1X/027RJ15UMB
PVV1-1X/027LA15LMB、PVV1-1X/027LA15UMB
PVV1-1X/027LJ15LMB、PVV1-1X/036RA15DMB
PVV1-1X/036RA15DVB、PVV1-1X/036RA15RMB
PVV1-1X/036RA15LMB、PVV1-1X/036RA15UMB
PVV1-1X/036RA15UVB、PVV1-1X/036RJ15DMB
PVV1-1X/036RJ15DVB、PVV1-1X/036RJ15RMB
PVV1-1X/036RJ15UMB、PVV1-1X/036LA15UMB
PVV1-1X/040RA15DMB、PVV1-1X/040RA15RMB
PVV1-1X/040RA15UMB、PVV1-1X/040RA15UVB
PVV1-1X/040RJ15DMB、PVV1-1X/040RJ15UMB
PVV1-1X/040LA15UMB、PVV1-1X/046RA15DMB
PVV1-1X/046RA15DVB、PVV1-1X/046RA15RVB
PVV1-1X/046RA15UMB、PVV1-1X/046RA15UVB
PVV1-1X/046RJ15DMB、PVV1-1X/046RJ15UMB
PVV1-1X/046RJ15UVB、PVV2-1X/040RA15DMB
PVV2-1X/040RA15LMB、PVV2-1X/040RA15UMB
PVV2-1X/040RA15UVB、PVV2-1X/040RJ15DMB
PVV2-1X/040RJ15UMB、PVV2-1X/045RA15DMB
PVV2-1X/045RA15DVB、PVV2-1X/045RA15RMB
PVV2-1X/045RA15LMB、PVV2-1X/045RA15UMB
PVV2-1X/045RA15UVB、PVV2-1X/045RJ15DMB
PVV2-1X/045RJ15UMB、PVV2-1X/045LA15UMB
PVV2-1X/055RA15DMB、PVV2-1X/055RA15DVB
PVV2-1X/055RA15RMB、PVV2-1X/055RA15RVB
PVV2-1X/055RA15LMB、PVV2-1X/055RA15UMB
PVV2-1X/055RA15UVB、PVV2-1X/055RB15DMB
PVV2-1X/055RJ15DMB、PVV2-1X/055RJ15RMB
PVV2-1X/055RJ15UMB、PVV2-1X/055LA15DMB
PVV2-1X/055LA15UMB、PVV2-1X/060RA15DMB
PVV2-1X/060RA15DVB、PVV2-1X/060RA15RMB
PVV2-1X/060RA15RVB、PVV2-1X/060RA15LMB
PVV2-1X/060RA15UMB、PVV2-1X/060RA15UVB
PVV2-1X/060RB15DMB、PVV2-1X/060RJ15DMB
PVV2-1X/060RJ15LMB、PVV2-1X/060RJ15UMB
PVV2-1X/060LA15DMB、PVV2-1X/060LA15LVB
PVV2-1X/060LA15UMB、PVV2-1X/068RA15DMB

力士樂Rexroth葉片泵假一賠十
PVV2-1X/068RA15DVB、PVV2-1X/068RA15RMB
PVV2-1X/068RA15LMB、PVV2-1X/068RA15UMB
PVV2-1X/068RA15UVB、PVV2-1X/068RB15DMB
PVV2-1X/068RB15UMB、PVV2-1X/068RJ15DMB
PVV2-1X/068RJ15LMB、PVV2-1X/068RJ15UMB
PVV2-1X/068RJ15UVB、PVV2-1X/068LA15DMB
PVV2-1X/068LA15UVB、PVV2-1X/068LB15DMB
PVV2-1X/068LJ15UMB、PVV4-1X/069RA15DMC
PVV4-1X/069RA15LMC、PVV4-1X/069RA15UMC
PVV4-1X/069RB15RMC、PVV4-1X/069RB15RVC
PVV4-1X/069RB15UMC、PVV4-1X/069RJ15DMC
PVV4-1X/069RJ15UMC、PVV4-1X/069LA15DMC
PVV4-1X/069LA15DVC、PVV4-1X/082RA15DMC
PVV4-1X/082RA15DVC、PVV4-1X/082RA15RMC
PVV4-1X/082RA15RVC、PVV4-1X/082RA15LMC
PVV4-1X/082RA15UMC、PVV4-1X/082RA15UVC
PVV4-1X/082RB15DMC、PVV4-1X/082RB15UMC
PVV4-1X/082RB15UVC、PVV4-1X/082RJ15DMC
PVV4-1X/082RJ15UMC、PVV4-1X/082LA15DMC
PVV4-1X/082LA15DVC、PVV4-1X/082LA15LVC
PVV4-1X/082LA15UMC、PVV4-1X/082LJ15UMC
PVV4-1X/098RA15DMC、PVV4-1X/098RA15DVC
PVV4-1X/098RA15RMC、PVV4-1X/098RA15RVC
PVV4-1X/098RA15LMC、PVV4-1X/098RA15UMC
PVV4-1X/098RA15UVC、PVV4-1X/098RB15DMC
PVV4-1X/098RB15UMC、PVV4-1X/098RJ15DMC
PVV4-1X/098RJ15UMC、PVV4-1X/098LA15RMC
PVV4-1X/098LA15UMC、PVV4-1X/098LA15UVC
PVV4-1X/113RA15DMC、PVV4-1X/113RA15DVC
PVV4-1X/113RA15LVC、PVV4-1X/113RA15UMC
PVV4-1X/113RA15UVC、PVV4-1X/113RB15DMC
PVV4-1X/113RB15RMC、PVV4-1X/113RJ15DMC
PVV4-1X/113RJ15UMC、PVV4-1X/113LA15UMC
PVV4-1X/122RA15DMC、PVV4-1X/122RA15DVC
PVV4-1X/122RA15RMC、PVV4-1X/122RA15LMC
PVV4-1X/122RA15UMC、PVV4-1X/122RB15DMC
PVV4-1X/122RJ15DMC、PVV4-1X/122RJ15DVC
PVV4-1X/122RJ15UMC、PVV4-1X/122LA15DMC
PVV4-1X/122LA15LMC、PVV4-1X/122LA15UMC
PVV4-1X/122LJ15DMC、PVV4-1X/122LJ15UMC
PVV5-1X/139RA15DMC、PVV5-1X/139RA15DVC
PVV5-1X/139RA15RVC、PVV5-1X/139RA15LMC
PVV5-1X/139RA15UMC、PVV5-1X/139RA15UVC
PVV5-1X/139RB15DMC、PVV5-1X/139RJ15DMC
PVV5-1X/139RJ15UMC、PVV5-1X/139LA15DMC
PVV5-1X/139LA15UMC、PVV5-1X/154RA15DMC
PVV5-1X/154RA15DVC、PVV5-1X/154RA15RMC
PVV5-1X/154RA15UMC、PVV5-1X/154RB15DMC
PVV5-1X/154RJ15DMC、PVV5-1X/154RJ15DVC
PVV5-1X/154RJ15UMC、PVV5-1X/154LA15DMC
PVV5-1X/154LA15UMC、PVV5-1X/162RA15DMC
PVV5-1X/162RA15DVC、PVV5-1X/162RA15RMC
PVV5-1X/162RA15UMC、PVV5-1X/162RA15UVC
PVV5-1X/162RB15DMC、PVV5-1X/162RB15DVC
PVV5-1X/162RB15LMC、PVV5-1X/162RB15UMC
PVV5-1X/162RJ15DMC、PVV5-1X/162RJ15UMC
PVV5-1X/162LA15DMC、PVV5-1X/162LA15UMC
PVV5-1X/162LB15UMC、PVV5-1X/162LJ15DMC
PVV5-1X/183RA15DMC、PVV5-1X/183RA15RMC