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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。

20V2A   叶片泵

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