REXROTH葉片泵，REXROTH定量泵

德國Rexroth力士樂葉片泵在驅動軸驅動軸的齒上安裝有轉子 ，它在定子環內回轉。葉片安裝在轉子槽內，轉子轉動時靠離心力使葉片壓在定子環的內表面。排油腔的端面由配油盤 密封。由于定子環是雙偏心結構，因此形成對稱布置的兩個吸油區和兩個壓油區，因此傳動軸的徑向液壓力相互平衡而卸載。軸僅傳遞驅動轉矩。在吸油區，葉片部分地卸荷。這能減少磨損和獲得高效率。取下端蓋，可以更換泵芯 ,由轉子、葉片、定子環和配油盤組成，而不必從鐘形罩上卸下泵體。這樣就能迅速地對泵進行維護和修理。
由于力士樂PVQ泵的設計結構，使其特別適用于行走機械應用。由于配油盤的特殊結構，而能夠補償轉子體的熱膨脹和能夠對突然的壓力變化起到抵抗作用。通過將配油盤分成柔性盤和端蓋而形成反向壓力腔，以平衡在擠壓器中的壓力。這就保了轉子和柔性盤之間的*間隙，因而保泵擁有的容積效率。
力士樂定量葉片泵的zui大工作壓力210bar（21MPa）和zui大擠壓容積18-193ml。
Rexroth單聯/雙聯定量葉片泵的特點：定排量；由于液壓卸荷的軸而使軸承擁有長壽命；由于液壓卸荷的葉片而僅有很小的磨損；工作噪音低；由于泵芯的互換性，有利于售后服務；好的效率；壓油口的位置可以選擇；驅動轉向或右旋或左旋；驅動軸可選圓柱形或花鍵。
力士樂雙聯泵：極緊湊的結構；壓油口的位置可分開選擇
力士樂雙聯葉片泵|REXROTH雙聯葉片泵
葉片泵轉子旋轉時，葉片在離心力和壓力油的作用下，尖部緊貼在定子內表面上。這樣兩個葉片與轉子和定子內表面所構成的工作容積，先由小到大吸油后再由大到小排油，葉片旋轉一周時，完成兩次吸油與排油。
PVV2-1X/060RA15DMB，PVV2-1X/068RA15DMB，
REXROTH葉片泵，REXROTH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
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
力士樂PVQ系列--行走機械用型葉片泵
PVQ2-1X055RA15DLMB，PVQ2-1X068RA15DLMB，
PVQ21-1X060-018RA15DLMB，PVQ4-1X/82RA-15DMC，
PVQ4-1X/98RA-15DMC，PVQ4-1X/113RA-15DMC，
PVQ4-1X/122RA-15DMC，PVQ5-1X/139/154/162/193，
PVQ21-1X/060-040RA15DDMB，PVQ21-1X/068-027RA15LUMB，
PVQ41-1X/098-027RA15UDMC，PVQ41-1X/122-036RA15DDMC
REXROTH葉片泵，REXROTH定量泵
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
PVV2-1X/040RA15DMB PVV2-1X/045RA15DMB力士樂Rexroth
PVV2-1X/055RA15DMB PVV2-1X/060RA15DMB
PVV2-1X/068RA15DMB PVV4-1X/069RA15DMB
PVV4-1X/082RA15DMB PVV4-1X/098RA15DMB力士樂Rexroth
PVV4-1X/113RA15DMB PVV4-1X/122RA15DMB
PVV5-1X/139RA15DMB PVV5-1X/154RA15DMB
PVV5-1X/162RA15DMB PVV5-1X/183RA15DMB力士樂Rexroth
PVV5-1X/193RA15DMB PVV5-1X/193RA15DMB
PVV21-1X/060-040RA15DDMB，PVV21-1X/068-027RA15LUMB力士樂Rexroth
PVV41-1X/098-027RA15UDMC，PVV41-1X/122-036RA15DDMC
PVV42-1X/098-045RA15DDMC，PVV21-1X/068-027RA15LUMB
PVV51-1X/162-036RB15DDMC，PVV51-1X/193-027RA15DDMC力士樂Rexroth
PVV52-1X/193-040RB15URMC，PVV52-1X/193-055RB15UUMC
PVV54-1X/183-082RA15DDMC， PVV54-1X/139-082RA15UUMC
PVQ2-1X055RA15DLMB，PVQ2-1X068RA15DLMB力士樂Rexroth
PVQ21-1X060-018RA15DLMB，PVQ4-1X/82RA-15DMC
PVQ4-1X/98RA-15DMC，PVQ4-1X/113RA-15DMC
PVQ4-1X/122RA-15DMC，PVQ5-1X/139/154/162/193力士樂Rexroth
PVQ21-1X/060-040RA15DDMB，PVQ21-1X/068-027RA15LUMB
PVQ41-1X/098-027RA15UDMC，PVQ41-1X/122-036RA15DDMC
PVQ42-1X/098-045RA15DDMC，PVQ21-1X/068-027RA15LUMB力士樂Rexroth
PVQ51-1X/162-036RB15DDMC，PVQ51-1X/193-027RA15DDMC
PVQ52-1X/193-040RB15URMC，PVQ52-1X/193-055RB15UUMC
PVQ54-1X/183-082RA15DDMC PVQ54-1X/139-082RA15UUMC

R901116694 PVV52-1X/139-068RA15DLMC
R901106500 PVV5-1X/193RA15LMC
R900618320 PVV54-1X/139-069RA15UUMC
R900617458 PVV2-1X/068RJ15UMB
R900616927 PVV4-1X/113RJ15UMC
R901141365 PVV1-1X/027LA15LMB
R901138307 PVV42-1X/082-045RA15DDMC
R901127013 PVV1-1X/027RJ15DVB
R901125797 PVV54-1X/162-082RB15UUMC
R901123353 PVV41-1X/082-018RA15RRVC
R901120947 PVV41-1X/082-046RA15UUMC
R901116697 PVV51-1X/139-027RA15DLMC
R901116694 PVV52-1X/139-068RA15DLMC
R901110909 PVV21-1X/040-018RB15UDMB
R901108431 PVV5-1X/154RJ15DVC
R901107242 PVV21-1X/055-018RA15UUVB
R901106500 PVV5-1X/193RA15LMC
R901104702 PVV4-1X/122RA15RMC
R901104691 PVV54-1X/154-113RJ15UUMC
R901100678 PVV21-1X/045-027RJ15UUMB
R901100169 PVV21-1X/068-027RA15URMB
R901099056 PVV51-1X/154-027RA15RRVC
R901098483 PVV54-1X/193-122RA15UUVC
R901094926 PVV54-1X/193-113RA15UUVC
R901093768 PVV1-1X/046RA15DVB
R901092271 PVV41-1X/082-036RA15LLMC
R901091909 PVV2-1X/060RA15LMB
R901091196 PVV54-1X/193-082RA15DDMC
R901089061 PVV52-1X/154-055RA15UUMC
R901086511 PVV42-1X/082-068RA15UUMC
R901085408 PVV54-1X/183-122RB15DDMC
R901085403 PVV54-1X/139-098RB15DDMC
R901085400 PVV52-1X/162-055RB15DDMC
R901085398 PVV52-1X/154-068RB15DDMC
R901085395 PVV51-1X/154-046RB15DDMC
R901085392 PVV51-1X/139-027RB15DDMC
R901085390 PVV42-1X/082-045RB15DDMC
R901085387 PVV42-1X/098-040RB15DDMC
R901085385 PVV41-1X/113-018RB15DDMC
R901085383 PVV41-1X/122-027RB15DDMC
R901085381 PVV21-1X/068-018RB15DDMB
R901085379 PVV21-1X/055-027RB15DDMB
R901084887 PVV52-1X/193-045RA15DDMC
R901083429 PVV54-1X/139-113LB15DDMC
R901081361 PVV21-1X/055-018RA15DDMB
R901080702 PVV5-1X/193RA15DVC
R901080473 PVV52-1X/193-068LA15UUMC
R901079432 PVV1-1X/027RA15RMB
R901078751 PVV51-1X/139-018RJ15DLMC
R901077322 PVV51-1X/193-027RB15UUMC
R901076988 PVV5-1X/162LA15DMC

R901075202 PVV42-1X/113-055RA15UUMC
R901075200 PVV41-1X/122-046RA15UUMC
R901074802 PVV21-1X/060-018RB15DDMB
R901069521 PVV51-1X/139-027RB15LLMC
R901066306 PVV21-1X/040-018RA15RRMB
R901063719 PVV42-1X/098-068RB15UUMC
R901063622 PVV2-1X/055RA15LMB
R901059672 PVV54-1X/162-122RA15DDMC
R901061186 PVV51-1X/193-018RA15LDMC
R901057121 PVV51-1X/193-046RA15DDMC
R901055602 PVV4-1X/113LA15UMC
R901053049 PVV51-1X/193-046RA15DLMC
R901053014 PVV51-1X/193-046LA15DLMC
R901050795 PVV54-1X/183-069RA15UUMC
R901045673 PVV4-1X/098RA15LMC
R901044270 PVV2-1X/040RA15UVB
R901042655 PVV54-1X/154-082RA15UUMC
R901042651 PVV41-1X/082-040RA15UUMC
R901042169 PVV21-1X/045-040LA15UUMB
R901040968 PVV1-1X/040RA15UVB
R901040503 PVV1-1X/036RJ15DVB
R901037970 PVV1-1X/018RA15RMB
R901036232 PVV51-1X/193-027RA15UUMC
R901034701 PVV54-1X/193-122RJ15DDMC
R901031937 PVV2-1X/055RA15DVB
R901031658 PVV21-1X/068-046RA15UUMB
R901028783 PVV2-1X/045LA15UMB
R901026966 PVV54-1X/154-122RB15UUMC
R901024714 PVV51-1X/162-046RA15DDMC
R901024704 PVV4-1X/082RJ15UMC
R901023158 PVV21-1X/045-040RA15UUMB
R901020330 PVV41-1X/122-027RA15DDMC
R901020329 PVV52-1X/193-045RB15LLMC
R901018208 PVV54-1X/139-122RJ15UUMC
R901014437 PVV4-1X/082LA15UMC
R901012238 PVV4-1X/122RA15DVC
R901012150 PVV41-1X/082-018RB15UUMC
R901009013 PVV21-1X/040-027RA15UUMB
R901004734 PVV21-1X/055-036RA15UUMB
R901002834 PVV41-1X/069-018RJ15UUMC
R901002823 PVV52-1X/162-068RA15UUMC
R900978703 PVV4-1X/082RA15DVC
R900977417 PVV5-1X/162RA15RMC
R900976172 PVV41-1X/098-018RA15UUMC
R900976001 PVV54-1X/162-082RA15DDMC
R900973408 PVV1-1X/027RA15UVB
R900972481 PVV42-1X/122-055RA15UUMC
R900970917 PVV5-1X/162RB15DVC
R900970135 PVV1-1X/036LA15UMB
R900969172 PVV21-1X/045-018RB15URMB
R900969090 PVV21-1X/040-018LA15URVB
R900968783 PVV21-1X/045-027RA15UUMB
R900968642 PVV2-1X/055RA15UVB
R900968079 PVV21-1X/045-040RA15UDMB
R900968078 PVV1-1X/040LA15UMB
R900968076 PVV2-1X/060LA15UMB

R900966979 PVV41-1X/069-018RA15DDMC
R900965263 PVV42-1X/122-040RA15UUMC
R900962361 PVV54-1X/193-122RA15UUMC
R900961088 PVV54-1X/193-122RB15DDMC
R900957021 PVV21-1X/055-046RA15UUMB
R900954326 PVV5-1X/139RA15UMC
R900952889 PVV21-1X/055-027RA15UUMB
R900950523 PVV21-1X/060-036RA15DDMB
R900949682 PVV5-1X/183LA15DMC
R900949681 PVV5-1X/193LA15DMC
R900949676 PVV51-1X/183-046RA15DDMC
R900949510 PVV54-1X/139-082RB15DDMC
R900949069 PVV2-1X/060RA15RMB
R900948951 PVV21-1X/068-040RA15DDMB
R900948873 PVV51-1X/139-046LB15UUMC
R900948168 PVV21-1X/045-027RA15DDMB
R900947492 PVV2-1X/045RA15UVB
R900947385 PVV5-1X/139RA15RVC
R900946959 PVV2-1X/040RJ15UMB
R900946296 PVV5-1X/139RA15DVC
R900945850 PVV4-1X/082RJ15DMC
R900945761 PVV4-1X/122RA15LMC
R900945544 PVV5-1X/193LB15DMC
R900945381 PVV21-1X/040-036RB15DUMB
R900945229 PVV54-1X/193-098RB15DDMC
R900945128 PVV1-1X/018RJ15UMB
R900945121 PVV54-1X/183-098RB15DUMC
R900944546 PVV5-1X/193LA15UMC
R900944135 PVV41-1X/122-018RA15DDMC
R900943716 PVV5-1X/154RA15UMC
R900943199 PVV2-1X/055RB15DMB
R900943054 PVV4-1X/113RA15UVC
R900942737 PVV4-1X/082LA15DMC
R900942489 PVV5-1X/193RB15UMC
R900942298 PVV2-1X/045RJ15UMB
R900942277 PVV52-1X/193-060RA15UUMC
R900942115 PVV2-1X/040RA15DMB

R900942114 PVV1-1X/018RA15DMB
R900942110 PVV5-1X/183RA15UMC
R900942109 PVV52-1X/139-068RA15UUMC
R900942108 PVV4-1X/098RJ15UMC
R900941961 PVV54-1X/139-082RA15UUMC
R900941702 PVV1-1X/046RJ15UMB
R900941701 PVV51-1X/183-040RA15UUMC
R900941700 PVV51-1X/193-046RA15UUMC
R900941699 PVV4-1X/098RA15RMC
R900941698 PVV2-1X/055RA15RMB
R900941697 PVV42-1X/113-068RB15URMC
R900941692 PVV4-1X/122RJ15DMC
R900941691 PVV2-1X/068RJ15DMB
R900941684 PVV1-1X/040RJ15DMB
R900941572 PVV2-1X/060RA15UMB
R900940633 PVV1-1X/018RA15UMB
R900940588 PVV21-1X/040-027RA15DDMB
R900940587 PVV21-1X/040-018RA15DDMB
R900940446 PVV2-1X/055RJ15UMB
R900940260 PVV1-1X/027RJ15UMB
R900940215 PVV2-1X/060RB15DMB
R900939702 PVV52-1X/193-055RA15UUMC
R900939526 PVV1-1X/036RJ15UMB
R900939497 PVV54-1X/139-098RB15UUMC
R900939347 PVV2-1X/055LA15DMB
R900939078 PVV5-1X/193RJ15DMC
R900939075 PVV1-1X/027RJ15DMB
R900939042 PVV5-1X/193RA15RMC
R900939041 PVV5-1X/183RA15RMC
R900939040 PVV2-1X/068RA15RMB
R900938819 PVV4-1X/113RA15UMC
R900937555 PVV41-1X/082-040RA15DDMC
R900937335 PVV52-1X/193-068RA15UUMC
R900937333 PVV42-1X/082-045RA15UUMC
R900937332 PVV21-1X/040-018RA15UUMB
R900937330 PVV4-1X/082RA15LMC
R900936954 PVV1-1X/027RA15UMB
R900936923 PVV5-1X/162RA15UMC

R900936760 PVV1-1X/036RA15UMB
R900936492 PVV5-1X/162RA15DMC
R900936491 PVV4-1X/113RA15DMC
R900936297 PVV5-1X/183RA15DMC
R900936296 PVV5-1X/154RA15DMC
R900936294 PVV4-1X/098RA15DMC
R900936293 PVV4-1X/069RA15DMC
R900936292 PVV2-1X/045RA15DMB
R900936290 PVV2-1X/055RA15DMB
R900936197 PVV2-1X/060RA15DMB
R900936150 PVV54-1X/183-122RA15UUMC
R900935891 PVV1-1X/036RA15DMB
R900935879 PVV41-1X/122-027RA15UUMC
R900935466 PVV2-1X/068RA15DMB
R900935445 PVV4-1X/069RA15UMC
R900934793 PVV5-1X/162RB15UMC
R900934061 PVV42-1X/098-045RA15DDMC
R900934058 PVV21-1X/060-040RA15DDMB
R900933057 PVV4-1X/082RA15RMC
R900932732 PVV5-1X/139RA15DMC
R900931901 PVV21-1X/055-018RA15UUMB
R900931548 PVV4-1X/082RA15DMC
R900931256 PVV2-1X/068RA15UVB
R900931138 PVV2-1X/040RA15UMB
R900931136 PVV4-1X/082RA15UMC
R900930907 PVV4-1X/098RA15UMC
R900929543 PVV1-1X/046RA15DMB
R900929542 PVV4-1X/122RA15DMC
R900929461 PVV2-1X/045RA15UMB
R900929349 PVV5-1X/193RA15DMC
R900928961 PVV4-1X/122RA15UMC
R900928955 PVV2-1X/055RA15UMB
R900928947 PVV1-1X/046RA15UMB
R900928946 PVV1-1X/040RA15UMB
R900928769 PVV5-1X/193RA15UMC
R900928302 PVV5-1X/193RB15DMC
R900928301 PVV5-1X/162RB15DMC
R900928297 PVV1-1X/040RA15DMB
R900928296 PVV1-1X/027RA15DMB
R900928294 PVV2-1X/068RB15DMB
R900926823 PVV2-1X/068RA15UMB
R900784502 PVV41-1X/098-046RJ15UUMC
R900778721 PVV41-1X/082-046RJ15UUVC
R900776218 PVV41-1X/122-018RJ15UUMC
R900775887 PVV5-1X/193RA15RVC
R900770813 PVV1-1X/040RJ15UMB
R900765934 PVV54-1X/193-082LA15UUVC
R900761046 PVV5-1X/154RB15DMCK02
R900756147 PVV54-1X/193-122RA15DUMC
R900755931 PVV54-1X/193-122RA15DDMC
R900746610 PVV21-1X/045-046RA15UUMB
R900740058 PVV41-1X/098-027RA15UUMC
R900738502 PVV52-1X/193-068RJ15DDMC
R900737709 PVV42-1X/122-068RA15UUMC
R900729458 PVV1-1X/018RA15UVB
R900728943 PVV4-1X/098RA15UVC

R900725190 PVV54-1X/193-122RB15UUVC
R900717179 PVV1-1X/046RA15UVB
R900716000 PVV41-1X/098-027RB15UUMC
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R900708327 PVV54-1X/154-098LB15UUMC
R900705633 PVV54-1X/162-098RJ15UUMC
R900704435 PVV5-1X/154RJ15DMC
R900704434 PVV5-1X/139RJ15DMC
R900703601 PVV42-1X/082-068RA15DDMC
R900965263 PVV42-1X/122-040RA15UUMC
R900954326 PVV5-1X/139RA15UMC
R900942115 PVV2-1X/040RA15DMB
R900941699 PVV4-1X/098RA15RMC
R900941691 PVV2-1X/068RJ15DMB
R900941572 PVV2-1X/060RA15UMB
R900940633 PVV1-1X/018RA15UMB
R900939702 PVV52-1X/193-055RA15UUMC
R900936954 PVV1-1X/027RA15UMB
R900936760 PVV1-1X/036RA15UMB
R900936491 PVV4-1X/113RA15DMC
R900936297 PVV5-1X/183RA15DMC
R900936294 PVV4-1X/098RA15DMC
R900936292 PVV2-1X/045RA15DMB
R900935891 PVV1-1X/036RA15DMB
R900935466 PVV2-1X/068RA15DMB
R900932732 PVV5-1X/139RA15DMC
R900931548 PVV4-1X/082RA15DMC
R900930907 PVV4-1X/098RA15UMC
R900929542 PVV4-1X/122RA15DMC
R900928961 PVV4-1X/122RA15UMC
R900928769 PVV5-1X/193RA15UMC
R900928296 PVV1-1X/027RA15DMB
R900249167 PVV2-1X/060RJ15LMB
R900247179 PVV41-1X/082-036LA15LLMC
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R900247177 PVV54-1X/162-098RB15LLMC
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R900246183 PVV1-1X/036RA15UVB
R900245088 PVV21-1X/045-046RA15RRMB
R900245062 PVV5-1X/154LA15UMC
Rexroth雙聯葉片泵的作用原理和單作用葉片泵相似，不同之處只在于定子表面是由兩段長半徑圓弧、兩段短半徑圓弧和四段過渡曲線八個部分組成，且定子和轉子是同心的。在圖示轉子順時針方向旋轉的情況下，密封工作腔的容積在左上角和右下角處逐漸增大，為吸油區，在左下角和右上角處逐漸減小，為壓油區；吸油區和壓油區之間有一段封油區把它們隔開。這種泵的轉子每轉一轉，每個密封工作腔完成吸油和壓油動作各兩次，所以稱為雙作用葉片泵。泵的兩個吸油區和兩個壓油區是徑向對稱的，作用在轉子上的液壓力徑向平衡，所以又稱為平衡式葉片泵。
雙作用葉片泵的瞬時流量是脈動的，當葉片數為4的倍數時脈動率小。為此，雙作用葉片泵的葉片數一般都取12或16。