A4VSO40DR/10R-PPB13NOO,力士樂型液壓泵變量柱塞泵的壓力油經(jīng)泵體、泵殼變量殼體中的通油孔通過單向閥進入變量殼體的下腔，當拉桿向下運動時，推動伺服活塞向下移動，伺服閥的上閥口打開，變量殼體下腔的壓力油經(jīng)變量活塞中的通油孔進入變量殼體上腔，由于上腔面積大于下腔，液壓力推動活塞向下運動，帶動銷軸使變量頭繞鋼球中心旋轉(zhuǎn)，改變變量頭的傾斜角（增大），柱塞泵的流量隨之增大。

A4VSO40DR/10R-PPB13NOO,力士樂型液壓泵A4VSO40DR/10L-PPB13NOO,力士樂型液壓泵
A4VSO40DRG/10R-PPB13NOO,力士樂型液壓泵A4VSO40DRG/10L-PPB13NOO,力士樂型液壓泵
A4VSO40LR/10R-PPB13NOO,力士樂型液壓泵A4VSO71DR/10R-PPB13NOO,力士樂型液壓泵
A4VSO71DR/10L-PPB13NOO,力士樂型液壓泵A4VSO71DRG/10R-PPB13NOO,Rexroth柱塞泵
A4VSO71DRG/10L-PPB13NOO,Rexroth柱塞泵A4VSO71LR/10R-PPB13NOO,Rexroth柱塞泵
A4VSO125DR/30R-PPB13NOO,Rexroth柱塞泵A4VSO125DR/30L-PPB13NOO,Rexroth柱塞泵
A4VSO125DRG/30R-PPB13NOO,Rexroth柱塞泵A4VSO125DRG/30L-PPB13NOO,Rexroth柱塞泵
A4VSO125LR/30R-PPB13NOO,軸向柱塞泵A4VSO180DR/30R-PPB13NOO,軸向柱塞泵
A4VSO180DR/30L-PPB13NOO,軸向柱塞泵A4VSO180DRG/30R-PPB13NOO,軸向柱塞泵
A4VSO180DRG/30L-PPB13NOO,軸向柱塞泵A4VSO180LR/30R-PPB13NOO,軸向柱塞泵
A4VSO250DR/30R-PPB13NOO,液壓變量柱塞泵A4VSO250DR/30L-PPB13NOO,液壓變量柱塞泵
A4VSO250DRG/30R-PPB13NOO,液壓變量柱塞泵A4VSO250DRG/30L-PPB13NOO,液壓變量柱塞泵

A4VSO250LR2G/30R-PPB13N00,液壓變量柱塞泵