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 PVQ42-1X/098-045RA15DDMC,PVQ21-1X/068-027RA15LUMB, PVQ51-1X/162-036RB15DDMC,PVQ51-1X/193-027RA15DDMC PVQ52-1X/193-040RB15URMC,PVQ52-1X/193-055RB15UUMC PVQ54-1X/183-082RA15DDMC PVQ54-1X/139-082RA15UUMC 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 PVV21-1X/060-040RA15DDMB PVV21-1X/068-027RA15LUMB PVV41-1X/098-027RA15UDMC PVV41-1X/122-036RA15DDMC PVV42-1X/098-045RA15DDMC PVV21-1X/068-027RA15LUMB PVV51-1X/162-036RB15DDMC PVV51-1X/193-027RA15DDMC PVV52-1X/193-040RB15URMC PVV52-1X/193-055RB15UUMC PVV54-1X/183-082RA15DDMC PVV54-1X/139-082RA15UUMC PVV52-1X/139-068RA15DLMC PVV5-1X/193RA15LMC PVV54-1X/139-069RA15UUMC PVV2-1X/068RJ15UMB PVV4-1X/113RJ15UMC PVV1-1X/027LA15LMB PVV42-1X/082-045RA15DDMC PVV1-1X/027RJ15DVB PVV54-1X/162-082RB15UUMC PVV41-1X/082-018RA15RRVC PVV41-1X/082-046RA15UUMC PVV51-1X/139-027RA15DLMC PVV52-1X/139-068RA15DLMC PVV21-1X/040-018RB15UDMB PVV5-1X/154RJ15DVC PVV21-1X/055-018RA15UUVB PVV5-1X/193RA15LMC PVV4-1X/122RA15RMC PVV54-1X/154-113RJ15UUMC PVV21-1X/045-027RJ15UUMB PVV21-1X/068-027RA15URMB PVV51-1X/154-027RA15RRVC PVV54-1X/193-122RA15UUVC PVV54-1X/193-113RA15UUVC PVV1-1X/046RA15DVB PVV41-1X/082-036RA15LLMC PVV2-1X/060RA15LMB PVV54-1X/193-082RA15DDMC PVV52-1X/154-055RA15UUMC PVV42-1X/082-068RA15UUMC PVV54-1X/183-122RB15DDMC PVV54-1X/139-098RB15DDMC PVV52-1X/162-055RB15DDMC PVV52-1X/154-068RB15DDMC