REXROTH叶片泵|REXROTH定量泵
PVQ42-1XRA15DDMC,PVQ21-1XRA15LUMB,
PVQ51-1XRB15DDMC,PVQ51-1XRA15DDMC
PVQ52-1XRB15URMC,PVQ52-1XRB15UUMC
PVQ54-1XRA15DDMC PVQ54-1XRA15UUMC
PVV2-1X/040RA15DMB PVV2-1X/045RA15DMB
PVV2-1X/055RA15DMB PVV2-1X/060RA15DMB
PVV2-1X/068RA15DMB 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 PVV5-1X/193RA15DMB
PVV21-1XRA15DDMB PVV21-1XRA15LUMB
PVV41-1XRA15UDMC PVV41-1XRA15DDMC
PVV42-1XRA15DDMC PVV21-1XRA15LUMB
PVV51-1XRB15DDMC PVV51-1XRA15DDMC
PVV52-1XRB15URMC PVV52-1XRB15UUMC
PVV54-1XRA15DDMC PVV54-1XRA15UUMC
PVV52-1XRA15DLMC PVV5-1X/193RA15LMC
PVV54-1XRA15UUMC PVV2-1X/068RJ15UMB
PVV4-1X/113RJ15UMC PVV1-1X/027LA15LMB
PVV42-1XRA15DDMC PVV1-1X/027RJ15DVB
PVV54-1XRB15UUMC PVV41-1XRA15RRVC
PVV41-1XRA15UUMC PVV51-1XRA15DLMC
PVV52-1XRA15DLMC PVV21-1XRB15UDMB
PVV5-1X/154RJ15DVC PVV21-1XRA15UUVB
PVV5-1X/193RA15LMC PVV4-1X/122RA15RMC
PVV54-1XRJ15UUMC PVV21-1XRJ15UUMB
PVV21-1XRA15URMB PVV51-1XRA15RRVC
PVV54-1XRA15UUVC PVV54-1XRA15UUVC
PVV1-1X/046RA15DVB PVV41-1XRA15LLMC
PVV2-1X/060RA15LMB PVV54-1XRA15DDMC
PVV52-1XRA15UUMC PVV42-1XRA15UUMC
PVV54-1XRB15DDMC PVV54-1XRB15DDMC
PVV52-1XRB15DDMC PVV52-1XRB15DDMC
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。