20V2A叶片泵

20V2A 20V2A-1A22R 20V2A-1B22R 20V2A-1C22R 20V2A-1D22R
20V3A 20V3A-1A22R 20V3A-1B22R 20V3A-1C22R 20V3A-1D22R
20V4A 20V4A-1A22R 20V4A-1B22R 20V4A-1C22R 20V4A-1D22R
20V5A 20V5A-1A22R 20V5A-1B22R 20V5A-1C22R 20V5A-1D22R
20V6A 20V6A-1A22R 20V6A-1B22R 20V6A-1C22R 20V6A-1D22R
20V7A 20V7A-1A22R 20V7A-1B22R 20V7A-1C22R 20V7A-1D22R
20V8A 20V8A-1A22R 20V8A-1B22R 20V8A-1C22R 20V8A-1D22R
20V9A 20V9A-1A22R 20V9A-1B22R 20V9A-1C22R 20V9A-1D22R
20V10A 20V10A-1A22R 20V10A-1B22R 20V10A-1C22R 20V10A-1D22R
20V11A 20V11A-1A22R 20V11A-1B22R 20V11A-1C22R 20V11A-1D22R
20V12A 20V12A-1A22R 20V12A-1B22R 20V12A-1C22R 20V12A-1D22R
20V14A 20V14A-1A22R 20V14A-1B22R 20V14A-1C22R 20V14A-1D22R
25V10A 25V10A-1A22R 25V10A-1B22R 25V10A-1C22R 25V10A-1D22R
25V12A 25V12A-1A22R 25V12A-1B22R 25V12A-1C22R 25V12A-1D22R
25V14A 25V14A-1A22R 25V14A-1B22R 25V14A-1C22R 25V14A-1D22R
25V15A 25V15A-1A22R 25V15A-1B22R 25V15A-1C22R 25V15A-1D22R
25V17A 25V17A-1A22R 25V17A-1B22R 25V17A-1C22R 25V17A-1D22R
25V19A 25V19A-1A22R 25V19A-1B22R 25V19A-1C22R 25V19A-1D22R
25V21A 25V21A-1A22R 25V21A-1B22R 25V21A-1C22R 25V21A-1D22R
35V21A 35V21A-1A22R 35V21A-1B22R 35V21A-1C22R 35V21A-1D22R
35V25A 35V25A-1A22R 35V25A-1B22R 35V25A-1C22R 35V25A-1D22R
35V30A 35V30A-1A22R 35V30A-1B22R 35V30A-1C22R 35V30A-1D22R
35V32A 35V32A-1A22R 35V32A-1B22R 35V32A-1C22R 35V32A-1D22R
35V35A 35V35A-1A22R 35V35A-1B22R 35V35A-1C22R 35V35A-1D22R
35V38A 35V38A-1A22R 35V38A-1B22R 35V38A-1C22R 35V38A-1D22R
45V42A 45V42A-1A22R 45V42A-1B22R 45V42A-1C22R 45V42A-1D22R
45V45A 45V45A-1A22R 45V45A-1B22R 45V45A-1C22R 45V45A-1D22R
45V50A 45V50A-1A22R 45V50A-1B22R 45V50A-1C22R 45V50A-1D22R
45V57A 45V57A-1A22R 45V57A-1B22R 45V57A-1C22R 45V57A-1D22R
45V60A 45V60A-1A22R 45V60A-1B22R 45V60A-1C22R 45V60A-1D22R
45V66A 45V66A-1A22R 45V66A-1B22R 45V66A-1C22R 45V66A-1D22R
45V76A 45V76A-1A22R 45V76A-1B22R 45V76A-1C22R 45V76A-1D22R
2520V   
3525V 20V2A-86A22R 20V2A-86B22R 20V2A-86C22R 20V2A-86D22R
4535V 20V3A-86A22R 20V3A-86B22R 20V3A-86C22R 20V3A-86D22R
 20V4A-86A22R 20V4A-86B22R 20V4A-86C22R 20V4A-86D22R
 20V5A-86A22R 20V5A-86B22R 20V5A-86C22R 20V5A-86D22R
 20V6A-86A22R 20V6A-86B22R 20V6A-86C22R 20V6A-86D22R
 20V7A-86A22R 20V7A-86B22R 20V7A-86C22R 20V7A-86D22R
 20V8A-86A22R 20V8A-86B22R 20V8A-86C22R 20V8A-86D22R
 20V9A-86A22R 20V9A-86B22R 20V9A-86C22R 20V9A-86D22R
 20V10A-86A22R 20V10A-86B22R 20V10A-86C22R 20V10A-86D22R
 20V11A-86A22R 20V11A-86B22R 20V11A-86C22R 20V11A-86D22R
 20V12A-86A22R 20V12A-86B22R 20V12A-86C22R 20V12A-86D22R
 20V14A-86A22R 20V14A-86B22R 20V14A-86C22R 20V14A-86D22R
 25V10A-86A22R 25V10A-86B22R 25V10A-86C22R 25V10A-86D22R
 25V12A-86A22R 25V12A-86B22R 25V12A-86C22R 25V12A-86D22R
 25V14A-86A22R 25V14A-86B22R 25V14A-86C22R 25V14A-86D22R
 25V15A-86A22R 25V15A-86B22R 25V15A-86C22R 25V15A-86D22R
 25V17A-86A22R 25V17A-86B22R 25V17A-86C22R 25V17A-86D22R
 25V19A-86A22R 25V19A-86B22R 25V19A-86C22R 25V19A-86D22R
 25V21A-86A22R 25V21A-86B22R 25V21A-86C22R 25V21A-86D22R
 35V21A-86A22R 35V21A-86B22R 35V21A-86C22R 35V21A-86D22R
 35V25A-86A22R 35V25A-86B22R 35V25A-86C22R 35V25A-86D22R
 35V30A-86A22R 35V30A-86B22R 35V30A-86C22R 35V30A-86D22R
 35V32A-86A22R 35V32A-86B22R 35V32A-86C22R 35V32A-86D22R
 35V35A-86A22R 35V35A-86B22R 35V35A-86C22R 35V35A-86D22R
 35V38A-86A22R 35V38A-86B22R 35V38A-86C22R 35V38A-86D22R
 45V42A-86A22R 45V42A-86B22R 45V42A-86C22R 45V42A-86D22R
 45V45A-86A22R 45V45A-86B22R 45V45A-86C22R 45V45A-86D22R
 45V50A-86A22R 45V50A-86B22R 45V50A-86C22R 45V50A-86D22R
 45V57A-86A22R 45V57A-86B22R 45V57A-86C22R 45V57A-86D22R
 45V60A-86A22R 45V60A-86B22R 45V60A-86C22R 45V60A-86D22R
 45V66A-86A22R 45V66A-86B22R 45V66A-86C22R 45V66A-86D22R
 45V76A-86A22R 45V76A-86B22R 45V76A-86C22R 45V76A-86D22R



叶片泵转子旋转时，叶片在离心力和压力油的作用下，尖部紧贴在定子内表面上。这样两个叶片与转子和定子内表面所构成的工作容积，先由小到大吸油后再由大到小排油，叶片旋转一周时，完成一次吸油与排油。
一、单作用叶片泵的工作原理
泵由转子1、定子2、叶片3、配油盘和端盖等部件所组成。定子的内表面是圆柱形孔。转子和定子之间存在着偏心。叶片在转子的槽内可灵活滑动，在转子转动时的离心力以及通入叶片根部压力油的作用下，叶片**部贴紧在定子内表面上，于是两相邻叶片、配油盘、定子和转子间便形成了一个个密封的工作腔。当转子按逆时针方向旋转时，图右侧的叶片向外伸出，密封工作腔容积逐渐增大，产生真空，于是通过吸油口6和配油盘5上窗口将油吸入。而在图的左侧。叶片往里缩进，密封腔的容积逐渐缩小，密封腔中的油液经配油盘另一窗口和压油口1被压出而输出到系统中去。这种泵在转子转一转过程中，吸油压油各一次，故称单作用泵。转子受到径向液压不平衡作用力，故又称非平衡式泵，其轴承负载较大。改变定子和转子间的偏心量，便可改变泵的排量，故这种泵都是变量泵。

二、双作用叶片泵的工作原理
它的作用原理和单作用叶片泵相似，不同之处只在于定子表面是由两段长半径圆弧、两段短半径圆弧和四段过渡曲线八个部分组成，且定子和转子是同心的。在图示转子顺时针方向旋转的情况下，密封工作腔的容积在左上角和右下角处逐渐增大，为吸油区，在左下角和右上角处逐渐减小，为压油区；吸油区和压油区之间有一段封油区把它们隔开。这种泵的转子每转一转，每个密封工作腔完成吸油和压油动作各两次，所以称为双作用叶片泵。泵的两个吸油区和两个压油区是径向对称的，作用在转子上的液压力径向平衡，所以又称为平衡式叶片泵。
双作用叶片泵的瞬时流量是脉动的，当叶片数为4的倍数时脉动率小。为此，双作用叶片泵的叶片数一般都取12或16。