PVV21-1X/045-046RA15RRMB

  

 

武汉耀泰机电设备有限公司

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武汉耀泰应全系列力士乐泵阀油缸

RWELLE PVV/PVQ54-1X/J+LAGERRPVV2-1X/068RA15DMBRPVV5-1X/ PVV4-1X/082RA15DMCRPVV4-1X/098RA15UMCRPVV4-1X/122RA15DMCRPVV4-1X/122RA15UMCRPVV5-1X/ PVV1-1X/027RA15DMBRZUBEHOER AB41-20A1X/B35-100/0-PVV1/MRZUBEHOER AB41-20S1X/B35-100/0-PVV1/MRZUBEHOER AB41-20S1X/B35- 90/0-PVV1/MRPVV2-1X/060RJ15LMBRPVV41-1X/082-036LA15LLMCRPVV54-1X/193-098RA15UUMCRPVV54-1X/162-098RB15LLMCRPVV1-1X/036RA15RMBRPVV54-1X/183-113RJ15UUMCRPVV1-1X/036RA15UVBRPVV21-1X/045-046RA15RRMBRPVV5-1X/ DICHTUNGSSATZ PVV5-1X/..VRDICHTUNGSSATZ PVV4-1X/..VRDICHTUNGSSATZ PVV2-1X/..VRDICHTUNGSSATZ PVV1-1X/..VREINBAUSATZ PVV4-1X/122RDREINBAUSATZ PVV4-1X/098RDREINBAUSATZ PVV4-1X/082RDREINBAUSATZ PVV2-1X/045RDREINBAUSATZ PVV1-1X/036RDREINBAUSATZ PVV2-1X/068RDREINBAUSATZ PVV5-1X/ EINBAUSATZ PVV1-1X/018RRDICHTUNGSSATZ PVV54-1X/..MRDICHTUNGSSATZ PVV52-1X/..MRDICHTUNGSSATZ PVV51-1X/..MRDICHTUNGSSATZ PVV42-1X/..MRDICHTUNGSSATZ PVV41-1X/..MRDICHTUNGSSATZ PVV21-1X/..MRDICHTUNGSSATZ PVV5-1X/..MRDICHTUNGSSATZ PVV4-1X/..MRDICHTUNGSSATZ PVV2-1X/..MRDICHTUNGSSATZ PVV1-1X/..MREINBAUSATZ PVV2-1X/060RREINBAUSATZ PVV2-1X/040RREINBAUSATZ PVV1-1X/040RREINBAUSATZ PVV2-1X/068RREINBAUSATZ PVV4-1X/098RREINBAUSATZ PVV2-1X/055RREINBAUSATZ PVV1-1X/027RREINBAUSATZ PVV4-1X/082RREINBAUSATZ PVV5-1X/ EINBAUSATZ PVV4-1X/113RREINBAUSATZ PVV5-1X/ EINBAUSATZ PVV5-1X/ EINBAUSATZ PVV4-1X/122RREINBAUSATZ PVV2-1X/045RREINBAUSATZ PVV1-1X/046RREINBAUSATZ PVV1-1X/036RREINBAUSATZ PVV5-1X/ PVV1-1X/036RA15DMBRABZPZ-S 1X/B35-100/0-PVV1A/JH-AL/M力士乐叶片泵PVV1-1X/046RA15DMB，PVV2-1X/040RA15DMB，PVV2-1X/045RA15DMB，PVV2-1X/055RA15DMB，PVV2-1X/055RA15DMB，PVV2-1X/060RA15DMB，PVV2-1X/068RA15DMB，力士乐叶片泵|力士乐定量泵PVV4-1X/069RA15DMB，PVV4-1X/082RA15DMB，PVV4-1X/098RA15DMB，PVV4-1X/113RA15DMB，PVV4-1X/122RA15DMB，PVV5-1X/139RA15DMB，PVV5-1X/154RA15DMB，PVV5-1X/162RA15DMB，PVV5-1X/183RA15DMB，PVV5-1X/193RA15DMB力士乐双联叶片泵|REXROTH双联叶片泵叶片泵转子旋转时，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，完成两次吸油与排油。PVV21-1X/060-040RA15DDMB，PVV21-1X/068-027RA15LUMB，PVV41-1X/098-027RA15UDMC，PVV41-1X/122-036RA15DDMCPVV42-1X/098-045RA15DDMC，PVV21-1X/068-027RA15LUMB，PVV51-1X/162-036RB15DDMC，PVV51-1X/193-027RA15DDMCPVV52-1X/193-040RB15URMC，PVV52-1X/193-055RB15UUMCPVV54-1X/183-082RA15DDMC  PVV54-1X/139-082RA15UUMC！力士乐PVQ系列--行走机械用型叶片泵 PV，PV，PVDLMB，PVQ4-1X/82RA-15DMC，PVQ4-1X/98RA-15DMC，PVQ4-1X/113RA-15DMC，PVQ4-1X/122RA-15DMC，PVQ5-1X/3，PVQ21-1X/060-040RA15DDMB，PVQ21-1X/068-027RA15LUMB，PVQ41-1X/098-027RA15UDMC，PVQ41-1X/122-036RA15DDMC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，叶片顶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。REXROTH叶片泵|REXROTH定量泵PVQ42-1X/098-045RA15DDMC，PVQ21-1X/068-027RA15LUMB，PVQ51-1X/162-036RB15DDMC，PVQ51-1X/152-1X/193-040RB15URMC，PVQ52-1X/154-1X/183-082RA15DDMC  PVQ54-1X/139-082RA15UUMC
PVV2-1X/040RA15DMB  PVV2-1X/045RA15DMBPVV2-1X/055RA15DMB  PVV2-1X/060RA15DMBPVV2-1X/068RA15DMB  PVV4-1X/069RA15DMBPVV4-1X/082RA15DMB  PVV4-1X/098RA15DMBPVV4-1X/113RA15DMB  PVV4-1X/122RA15DMBPVV5-1X/139RA15DMB  PVV5-1X/154RA15DMBPVV5-1X/162RA15DMB  PVV5-1X/183RA15DMBPVV5-1X/193RA15DMB  PVV5-1X/193RA15DMB

PVV21-1X/060-040RA15DDMB   PVV21-1X/068-027RA15LUMBPVV41-1X/098-027RA15UDMC   PVV41-1X/122-036RA15DDMCPVV42-1X/098-045RA15DDMC   PVV21-1X/068-027RA15LUMBPVV51-1X/162-036RB15DDMC   PVV51-1X/193-027RA15DDMCPVV52-1X/193-040RB15URMC   PVV52-1X/193-055RB15UUMCPVV54-1X/183-082RA15DDMC   PVV54-1X/139-082RA15UUMCPVV52-1X/139-068RA15DLMC   PVV5-1X/193RA15LMCPVV54-1X/139-069RA15UUMC   PVV2-1X/068RJ15UMBPVV4-1X/113RJ15UMC         PVV1-1X/027LA15LMBPVV42-1X/082-045RA15DDMC   PVV1-1X/027RJ15DVBPVV54-1X/162-082RB15UUMC   PVV41-1X/082-018RA15RRVCPVV41-1X/082-046RA15UUMC   PVV51-1X/139-027RA15DLMCPVV52-1X/139-068RA15DLMC   PVV21-1X/040-018RB15UDMBPVV5-1X/154RJ15DVC         PVV21-1X/055-018RA15UUVBPVV5-1X/193RA15LMC         PVV4-1X/122RA15RMCPVV54-1X/154-113RJ15UUMC   PVV21-1X/045-027RJ15UUMBPVV21-1X/068-027RA15URMB   PVV51-1X/154-027RA15RRVCPVV54-1X/193-122RA15UUVC   PVV54-1X/193-113RA15UUVC PVV1-1X/046RA15DVB        PVV41-1X/082-036RA15LLMCPVV2-1X/060RA15LMB         PVV54-1X/193-082RA15DDMCPVV52-1X/154-055RA15UUMC   PVV42-1X/082-068RA15UUMCPVV54-1X/183-122RB15DDMC   PVV54-1X/139-098RB15DDMCPVV52-1X/162-055RB15DDMC   PVV52-1X/154-068RB15DDMC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。适合多种不同速度和粘度范围
可提供联轴泵可和轴向柱塞泵和内啮合齿轮泵连接使用PVV2-1X/040RA15DMB  PVV2-1X/045RA15DMB力士乐RexrothPVV2-1X/055RA15DMB  PVV2-1X/060RA15DMBPVV2-1X/068RA15DMB  PVV4-1X/069RA15DMBPVV4-1X/082RA15DMB  PVV4-1X/098RA15DMB力士乐RexrothPVV4-1X/113RA15DMB  PVV4-1X/122RA15DMBPVV5-1X/139RA15DMB  PVV5-1X/154RA15DMBPVV5-1X/162RA15DMB  PVV5-1X/183RA15DMB力士乐RexrothPVV5-1X/193RA15DMB  PVV5-1X/193RA15DMBPVV21-1X/060-040RA15DDMB，PVV21-1X/068-027RA15LUMB力士乐RexrothPVV41-1X/098-027RA15UDMC，PVV41-1X/122-036RA15DDMCPVV42-1X/098-045RA15DDMC，PVV21-1X/068-027RA15LUMBPVV51-1X/162-036RB15DDMC，PVV51-1X/193-027RA15DDMC力士乐RexrothPVV52-1X/193-040RB15URMC，PVV52-1X/193-055RB15UUMCPVV54-1X/183-082RA15DDMC， PVV54-1X/139-082RA15UUMCPV，PV力士乐RexrothPVDLMB，PVQ4-1X/4-1X/98RA-15DMC，PVQ4-1X/4-1X/122RA-15DMC，PVQ5-1X/3力士乐21-1X/060-040RA15DDMB，PVQ21-1X/041-1X/098-027RA15UDMC，PVQ41-1X/142-1X/098-045RA15DDMC，PVQ21-1X/068-027RA15LUMB力士乐51-1X/162-036RB15DDMC，PVQ51-1X/152-1X/193-040RB15URMC，PVQ52-1X/154-1X/183-082RA15DDMC  PVQ54-1X/139-082RA15UUMCRPVV52-1X/139-068RA15DLMCRPVV5-1X/ PVV54-1X/139-069RA15UUMCRPVV2-1X/068RJ15UMBRPVV4-1X/113RJ15UMC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。RWELLE PVV/PVQ54-1X/J+LAGERRWELLE PVV/PVQ51-1X/J+LAGERRWELLE PVV/PVQ51-1X/B+LAGERRWELLE PVV/PVQ 5-1X/B+LAGERRWELLE PVV/PVQ 5-1X/A+LAGERRWELLE PVV/PVQ 4-1X/J+LAGERRPVV1-1X/027LA15LMBRPVV42-1X/082-045RA15DDMCRPVV1-1X/027RJ15DVBRPVV54-1X/162-082RB15UUMCRPVV41-1X/082-018RA15RRVCRPVV41-1X/082-046RA15UUMCRPVV51-1X/139-027RA15DLMCRPVV52-1X/139-068RA15DLMCRPVV21-1X/040-018RB15UDMBRPVV5-1X/ PVV21-1X/055-018RA15UUVBRPVV5-1X/ PVV4-1X/122RA15RMCRPVV54-1X/154-113RJ15UUMCRPVV21-1X/045-027RJ15UUMBRABUPG-PVV4- 98U-1X/132M-4-B1K/SE SIERPVV21-1X/068-027RA15URMBRPVV51-1X/154-027RA15RRVCRPVV54-1X/193-122RA15UUVCRPVV54-1X/193-113RA15UUVCRABUPG-PVV1- 46U-1X/100L-4-AG0/SERPVV1-1X/046RA15DVBRPVV41-1X/082-036RA15LLMCRPVV2-1X/060RA15LMBRPVV54-1X/193-082RA15DDMCRSY2DFEE-2X/045-PVV/060RPVV52-1X/154-055RA15UUMCRPVV42-1X/082-068RA15UUMCRPVV54-1X/183-122RB15DDMCRPVV54-1X/139-098RB15DDMCRPVV52-1X/162-055RB15DDMCRPVV52-1X/154-068RB15DDMCRPVV51-1X/154-046RB15DDMCRPVV51-1X/139-027RB15DDMCRPVV42-1X/082-045RB15DDMCRPVV42-1X/098-040RB15DDMCRPVV41-1X/113-018RB15DDMCRPVV41-1X/122-027RB15DDMCRPVV21-1X/068-018RB15DDMBRPVV21-1X/055-027RB15DDMBRPVV52-1X/193-045RA15DDMCRPVV54-1X/139-113LB15DDMCRPVV21-1X/055-018RA15DDMBRPVV5-1X/ PVV52-1X/193-068LA15UUMCRPVV1-1X/027RA15RMBRPVV51-1X/139-018RJ15DLMCRPVV51-1X/193-027RB15UUMCRPVV5-1X/ PVV42-1X/113-055RA15UUMCRPVV41-1X/122-046RA15UUMCRPVV21-1X/060-018RB15DDMBRPVV51-1X/139-027RB15LLMCRPVV21-1X/040-018RA15RRMBRPVV42-1X/098-068RB15UUMCRPVV2-1X/055RA15LMBRABHPG-PVV1-018U/90L-6-W1/SF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，叶片顶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。RPVV54-1X/162-122RA15DDMCRPVV51-1X/193-018RA15LDMCRPVV51-1X/193-046RA15DDMCRPVV4-1X/113LA15UMCRABHPG-PVV1-027D/90L-4-A1/SBFRPVV51-1X/193-046RA15DLMCRPVV51-1X/193-046LA15DLMCRPVV54-1X/183-069RA15UUMCRPVV4-1X/098RA15LMCRPVV2-1X/040RA15UVBRPVV54-1X/154-082RA15UUMCRPVV41-1X/082-040RA15UUMCRPVV21-1X/045-040LA15UUMBRPVV1-1X/040RA15UVBRPVV1-1X/036RJ15DVBRABUPG-PVV1- 46U-1X/100L-4-A0K/S ABBRPVV1-1X/018RA15RMBRPVV51-1X/193-027RA15UUMCRPVV54-1X/193-122RJ15DDMCRABUPG-PVV21- 45- 18U-1X/100L-4-A0/SRPVV2-1X/055RA15DVBRPVV21-1X/068-046RA15UUMBRABAPG-PVV2-068U/100L-4-A0/SERPVV2-1X/045LA15UMBRZUBEHOER AB41-20A1X/B35-100/0-PVV2/MRPVV54-1X/154-122RB15UUMCRABUPG-PVV1- 18U-1X/ 80 -4-O1HAN10ESS/SRPVV51-1X/162-046RA15DDMCRPVV4-1X/082RJ15UMCRPVV21-1X/045-040RA15UUMBRPVV41-1X/122-027RA15DDMCRPVV52-1X/193-045RB15LLMCRPVV54-1X/139-122RJ15UUMCRPVV4-1X/082LA15UMCRPVV4-1X/122RA15DVCRPVV41-1X/082-018RB15UUMCRPVV21-1X/040-027RA15UUMBRSY2DFEE-2X/100-PVV/046RSY2DFEE-2X/071-PVV/059RPVV21-1X/055-036RA15UUMBRPVV41-1X/069-018RJ15UUMCRPVV52-1X/162-068RA15UUMCRSY2DFEE-2X/071-PVV/00782RPVV4-1X/082RA15DVCRABAPG-PVV /017D493ARPVV5-1X/ PVV41-1X/098-018RA15UUMCRPVV54-1X/162-082RA15DDMCRPVV1-1X/027RA15UVBRPVV42-1X/122-055RA15UUMCRPVV5-1X/ PVV1-1X/036LA15UMBRPVV21-1X/045-018RB15URMBRPVV21-1X/040-018LA15URVBRPVV21-1X/045-027RA15UUMB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，叶片顶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。RPVV2-1X/055RA15UVBRPVV21-1X/045-040RA15UDMBRPVV1-1X/040LA15UMBRPVV2-1X/060LA15UMBRPVV41-1X/069-018RA15DDMCRPVV42-1X/122-040RA15UUMCRPVV54-1X/193-122RA15UUMCRPVV54-1X/193-122RB15DDMCRPVV21-1X/055-046RA15UUMBRPVV5-1X/ PVV21-1X/055-027RA15UUMBRPVV21-1X/060-036RA15DDMBRPVV5-1X/ PVV5-1X/ PVV51-1X/183-046RA15DDMCRPVV54-1X/139-082RB15DDMCRPVV2-1X/060RA15RMBRPVV21-1X/068-040RA15DDMBRPVV51-1X/139-046LB15UUMCRPVV21-1X/045-027RA15DDMBRPVV2-1X/045RA15UVBRPVV5-1X/ PVV2-1X/040RJ15UMBRPVV5-1X/ PVV4-1X/082RJ15DMCRPVV4-1X/122RA15LMCRPVV5-1X/ PVV21-1X/040-036RB15DUMBRPVV54-1X/193-098RB15DDMCRPVV1-1X/018RJ15UMBRPVV54-1X/183-098RB15DUMCRPVV5-1X/ PVV41-1X/122-018RA15DDMCRPVV5-1X/ PVV2-1X/055RB15DMBRPVV4-1X/113RA15UVCRPVV4-1X/082LA15DMCRPVV5-1X/ PVV2-1X/045RJ15UMBRPVV52-1X/193-060RA15UUMCRPVV2-1X/040RA15DMBRPVV1-1X/018RA15DMBRPVV5-1X/ PVV52-1X/139-068RA15UUMCRPVV4-1X/098RJ15UMCRPVV54-1X/139-082RA15UUMCRPVV1-1X/046RJ15UMBRPVV51-1X/183-040RA15UUMCRPVV51-1X/193-046RA15UUMCRPVV4-1X/098RA15RMCRPVV2-1X/055RA15RMBRPVV42-1X/113-068RB15URMCRPVV4-1X/122RJ15DMCRPVV2-1X/068RJ15DMBRPVV1-1X/040RJ15DMBRPVV2-1X/060RA15UMBRPVV1-1X/018RA15UMBRPVV21-1X/040-027RA15DDMBRPVV21-1X/040-018RA15DDMBRPVV2-1X/055RJ15UMBRPVV1-1X/027RJ15UMBRPVV2-1X/060RB15DMBRPVV52-1X/193-055RA15UUMCRPVV1-1X/036RJ15UMBRPVV54-1X/139-098RB15UUMCRPVV2-1X/055LA15DMBRPVV5-1X/ PVV1-1X/027RJ15DMBRPVV5-1X/ PVV5-1X/ PVV2-1X/068RA15RMBRPVV4-1X/113RA15UMCRPVV41-1X/082-040RA15DDMCRPVV52-1X/193-068RA15UUMCRPVV42-1X/082-045RA15UUMCRPVV21-1X/040-018RA15UUMBRPVV4-1X/082RA15LMCRPVV1-1X/027RA15UMBRPVV5-1X/ PVV1-1X/036RA15UMBRPVV5-1X/ PVV4-1X/113RA15DMCRPVV5-1X/ PVV5-1X/ PVV4-1X/098RA15DMCRPVV4-1X/069RA15DMCRPVV2-1X/045RA15DMBRPVV2-1X/055RA15DMBRPVV2-1X/060RA15DMBRPVV54-1X/183-122RA15UUMCRPVV1-1X/036RA15DMBRPVV41-1X/122-027RA15UUMCRPVV2-1X/068RA15DMBRPVV4-1X/069RA15UMCRPVV5-1X/ PVV42-1X/098-045RA15DDMCRPVV21-1X/060-040RA15DDMBRPVV4-1X/082RA15RMCRPVV5-1X/ PVV21-1X/055-018RA15UUMB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。