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葉片泵的工作原理及結(jié)構(gòu)一、雙葉片泵的工作原理

1、定子(內(nèi)腔型線(xiàn)):

1）兩段長(zhǎng)半徑圓弧

2）兩段短半徑圓弧

3）四段過(guò)渡曲線(xiàn)

2、轉(zhuǎn)子:

有若干葉槽，內(nèi)有葉片。旋轉(zhuǎn)時(shí)，葉片受離心力及液壓力作用下，外頂定子內(nèi)壁，并在槽內(nèi)往復(fù)滑動(dòng)。

3、配油盤(pán):

在定子和轉(zhuǎn)子兩側(cè)，盤(pán)上有兩對(duì)吸、排口，在定子、轉(zhuǎn)子、葉片和配油盤(pán)之間形成若干個(gè)工作空間。

葉片由短轉(zhuǎn)向長(zhǎng)半徑時(shí),葉片間v增大，p降低，經(jīng)配油盤(pán)吸油。葉片由長(zhǎng)向短半徑時(shí),葉片間v減小，經(jīng)配油盤(pán)的排出口排油。當(dāng)葉片位于密封區(qū)時(shí),正好將吸、排口隔開(kāi)，葉片間v不變，沒(méi)有困油問(wèn)題。轉(zhuǎn)子轉(zhuǎn)一周，每工作v都吸、排兩次（雙作用泵）。

二、單作用葉片泵的工作原理

定子內(nèi)腔型線(xiàn)是圓，轉(zhuǎn)子軸與定子偏心。逆時(shí)針回轉(zhuǎn)時(shí)，工作v右半轉(zhuǎn)增大，左半轉(zhuǎn)v 減小。從兩側(cè)配油盤(pán)的吸、排口吸排油。

兩相鄰葉片轉(zhuǎn)到吸、排油口間的密封區(qū)時(shí)，所接觸定子曲線(xiàn)不是與轉(zhuǎn)子同心的圓弧。密封區(qū)的圓心角略大于相鄰葉片所占圓心角。

葉間工作v 先略有增大，然后略有縮小，會(huì)產(chǎn)生困油現(xiàn)象，但不太嚴(yán)重。通過(guò)在排出口邊緣開(kāi)三角形卸荷槽的方法即可解決。

定子、轉(zhuǎn)子和軸承受徑向力作用，屬非卸荷式葉片泵。工作p不宜太高，q的均勻性也比雙作用差。

移動(dòng)定子可改變偏心的方向及大小，可做成n恒定而q可變的雙向或單向的無(wú)級(jí)變量泵。其中用得較多的是限壓式變量葉片泵。

力士樂(lè)葉片泵PVV1-1X/046RA15DMB，
PVV2-1X/040RA15DMB，PVV2-1X/045RA15DMB，
PVV2-1X/055RA15DMB，PVV2-1X/055RA15DMB，
PVV2-1X/060RA15DMB，PVV2-1X/068RA15DMB，
力士樂(lè)葉片泵|力士樂(lè)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
力士樂(lè)雙聯(lián)葉片泵|REXROTH雙聯(lián)葉片泵
葉片泵轉(zhuǎn)子旋轉(zhuǎn)時(shí)，葉片在離心力和壓力油的作用下，尖部緊貼在定子內(nèi)表面上。這樣兩個(gè)葉片與轉(zhuǎn)子和定子內(nèi)表面所構(gòu)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(zhuǎn)一周時(shí)，完成兩次吸油與排油。
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(lè)PVQ系列--行走機(jī)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
泵由轉(zhuǎn)子1、定子2、葉片3、配油盤(pán)和端蓋等部件所組成。定子的內(nèi)表面是圓柱形孔。轉(zhuǎn)子和定子之間存在著偏心。葉片在轉(zhuǎn)子的槽內(nèi)可靈活滑動(dòng)，在轉(zhuǎn)子轉(zhuǎn)動(dòng)時(shí)的離心力以及通入葉片根部壓力油的作用下，葉片頂部貼緊在定子內(nèi)表面上，于是兩相鄰葉片、配油盤(pán)、定子和轉(zhuǎn)子間便形成了一個(gè)個(gè)密封的工作腔。當(dāng)轉(zhuǎn)子按逆時(shí)針?lè)较蛐D(zhuǎn)時(shí)，圖右側(cè)的葉片向外伸出，密封工作腔容積逐漸增大，產(chǎn)生真空，于是通過(guò)吸油口6和配油盤(pán)5上窗口將油吸入。而在圖的左側(cè)。葉片往里縮進(jìn)，密封腔的容積逐漸縮小，密封腔中的油液經(jīng)配油盤(pán)另一窗口和壓油口1被壓出而輸出到系統(tǒng)中去。這種泵在轉(zhuǎn)子轉(zhuǎn)一轉(zhuǎn)過(guò)程中，吸油壓油各一次，故稱(chēng)單作用泵。轉(zhuǎn)子受到徑向液壓不平衡作用力，故又稱(chēng)非平衡式泵，其軸承負(fù)載較大。改變定子和轉(zhuǎn)子間的偏心量，便可改變泵的排量，故這種泵都是變量泵。
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
它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(zhǎng)半徑圓弧、兩段短半徑圓弧和四段過(guò)渡曲線(xiàn)八個(gè)部分組成，且定子和轉(zhuǎn)子是同心的。在圖示轉(zhuǎn)子順時(shí)針?lè)较蛐D(zhuǎn)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(qū)，在左下角和右上角處逐漸減小，為壓油區(qū)；吸油區(qū)和壓油區(qū)之間有一段封油區(qū)把它們隔開(kāi)。這種泵的轉(zhuǎn)子每轉(zhuǎn)一轉(zhuǎn)，每個(gè)密封工作腔完成吸油和壓油動(dòng)作各兩次，所以稱(chēng)為雙作用葉片泵。泵的兩個(gè)吸油區(qū)和兩個(gè)壓油區(qū)是徑向?qū)ΨQ(chēng)的，作用在轉(zhuǎn)子上的液壓力徑向平衡，所以又稱(chēng)為平衡式葉片泵。 
雙作用葉片泵的瞬時(shí)流量是脈動(dòng)的，當(dāng)葉片數(shù)為4的倍數(shù)時(shí)脈動(dòng)率小。為此，雙作用葉片泵的葉片數(shù)一般都取12或16。
適合多種不同速度和粘度范圍

可提供聯(lián)軸泵可和軸向柱塞泵和內(nèi)嚙合齒輪泵連接使用
PVV2-1X/040RA15DMB  PVV2-1X/045RA15DMB力士樂(lè)Rexroth
PVV2-1X/055RA15DMB  PVV2-1X/060RA15DMB
PVV2-1X/068RA15DMB  PVV4-1X/069RA15DMB
PVV4-1X/082RA15DMB  PVV4-1X/098RA15DMB力士樂(lè)Rexroth
PVV4-1X/113RA15DMB  PVV4-1X/122RA15DMB
PVV5-1X/139RA15DMB  PVV5-1X/154RA15DMB
PVV5-1X/162RA15DMB  PVV5-1X/183RA15DMB力士樂(lè)Rexroth
PVV5-1X/193RA15DMB  PVV5-1X/193RA15DMB
PVV21-1X/060-040RA15DDMB，PVV21-1X/068-027RA15LUMB力士樂(lè)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(lè)Rexroth
PVV52-1X/193-040RB15URMC，PVV52-1X/193-055RB15UUMC
PVV54-1X/183-082RA15DDMC， PVV54-1X/139-082RA15UUMC
PVQ2-1X055RA15DLMB，PVQ2-1X068RA15DLMB力士樂(lè)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(lè)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(lè)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

它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(zhǎng)半徑圓弧、兩段短半徑圓弧和四段過(guò)渡曲線(xiàn)八個(gè)部分組成，且定子和轉(zhuǎn)子是同心的。在圖示轉(zhuǎn)子順時(shí)針?lè)较蛐D(zhuǎn)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(qū)，在左下角和右上角處逐漸減小，為壓油區(qū)；吸油區(qū)和壓油區(qū)之間有一段封油區(qū)把它們隔開(kāi)。這種泵的轉(zhuǎn)子每轉(zhuǎn)一轉(zhuǎn)，每個(gè)密封工作腔完成吸油和壓油動(dòng)作各兩次，所以稱(chēng)為雙作用葉片泵。泵的兩個(gè)吸油區(qū)和兩個(gè)壓油區(qū)是徑向?qū)ΨQ(chēng)的，作用在轉(zhuǎn)子上的液壓力徑向平衡，所以又稱(chēng)為平衡式葉片泵。 
雙作用葉片泵的瞬時(shí)流量是脈動(dòng)的，當(dāng)葉片數(shù)為4的倍數(shù)時(shí)脈動(dòng)率小。為此，雙作用葉片泵的葉片數(shù)一般都取12或16。
R961002468 WELLE PVV/PVQ54-1X/J+LAGER
R961002460 WELLE PVV/PVQ51-1X/J+LAGER
R961002459 WELLE PVV/PVQ51-1X/B+LAGER
R961002443 WELLE PVV/PVQ 5-1X/B+LAGER
R961002441 WELLE PVV/PVQ 5-1X/A+LAGER
R961002440 WELLE PVV/PVQ 4-1X/J+LAGER
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
R901100223 ABUPG-PVV4- 98U-1X/132M-4-B1K/SE SIE
R901100169 PVV21-1X/068-027RA15URMB
R901099056 PVV51-1X/154-027RA15RRVC
R901098483 PVV54-1X/193-122RA15UUVC
R901094926 PVV54-1X/193-113RA15UUVC
R901094615 ABUPG-PVV1- 46U-1X/100L-4-AG0/SE
R901093768 PVV1-1X/046RA15DVB
R901092271 PVV41-1X/082-036RA15LLMC
R901091909 PVV2-1X/060RA15LMB
R901091196 PVV54-1X/193-082RA15DDMC
R901089304 SY2DFEE-2X/045-PVV/01089270+00940260
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
R901062107 ABHPG-PVV1-018U/90L-6-W1/SF
泵由轉(zhuǎn)子1、定子2、葉片3、配油盤(pán)和端蓋等部件所組成。定子的內(nèi)表面是圓柱形孔。轉(zhuǎn)子和定子之間存在著偏心。葉片在轉(zhuǎn)子的槽內(nèi)可靈活滑動(dòng)，在轉(zhuǎn)子轉(zhuǎn)動(dòng)時(shí)的離心力以及通入葉片根部壓力油的作用下，葉片頂部貼緊在定子內(nèi)表面上，于是兩相鄰葉片、配油盤(pán)、定子和轉(zhuǎn)子間便形成了一個(gè)個(gè)密封的工作腔。當(dāng)轉(zhuǎn)子按逆時(shí)針?lè)较蛐D(zhuǎn)時(shí)，圖右側(cè)的葉片向外伸出，密封工作腔容積逐漸增大，產(chǎn)生真空，于是通過(guò)吸油口6和配油盤(pán)5上窗口將油吸入。而在圖的左側(cè)。葉片往里縮進(jìn)，密封腔的容積逐漸縮小，密封腔中的油液經(jīng)配油盤(pán)另一窗口和壓油口1被壓出而輸出到系統(tǒng)中去。這種泵在轉(zhuǎn)子轉(zhuǎn)一轉(zhuǎn)過(guò)程中，吸油壓油各一次，故稱(chēng)單作用泵。轉(zhuǎn)子受到徑向液壓不平衡作用力，故又稱(chēng)非平衡式泵，其軸承負(fù)載較大。改變定子和轉(zhuǎn)子間的偏心量，便可改變泵的排量，故這種泵都是變量泵。
R901059672 PVV54-1X/162-122RA15DDMC
R901061186 PVV51-1X/193-018RA15LDMC
R901057121 PVV51-1X/193-046RA15DDMC
R901055602 PVV4-1X/113LA15UMC
R901054757 ABHPG-PVV1-027D/90L-4-A1/SBF
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
R901040430 ABUPG-PVV1- 46U-1X/100L-4-A0K/S ABB
R901037970 PVV1-1X/018RA15RMB
R901036232 PVV51-1X/193-027RA15UUMC
R901034701 PVV54-1X/193-122RJ15DDMC
R901033123 ABUPG-PVV21- 45- 18U-1X/100L-4-A0/S
R901031937 PVV2-1X/055RA15DVB
R901031658 PVV21-1X/068-046RA15UUMB
R901029208 ABAPG-PVV2-068U/100L-4-A0/SE
R901028783 PVV2-1X/045LA15UMB
R901027161 ZUBEHOER AB41-20A1X/B35-100/0-PVV2/M
R901026966 PVV54-1X/154-122RB15UUMC
R901025366 ABUPG-PVV1- 18U-1X/ 80 -4-O1HAN10ESS/S
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
R901006812 SY2DFEE-2X/100-PVV/01006744+00940446
R901006811 SY2DFEE-2X/071-PVV/01006745+00946959
R901004734 PVV21-1X/055-036RA15UUMB
R901002834 PVV41-1X/069-018RJ15UUMC
R901002823 PVV52-1X/162-068RA15UUMC
R901001457 SY2DFEE-2X/071-PVV/00782146+00940260
R900978703 PVV4-1X/082RA15DVC
R900977523 ABAPG-PVV /017D493A
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
泵由轉(zhuǎn)子1、定子2、葉片3、配油盤(pán)和端蓋等部件所組成。定子的內(nèi)表面是圓柱形孔。轉(zhuǎn)子和定子之間存在著偏心。葉片在轉(zhuǎn)子的槽內(nèi)可靈活滑動(dòng)，在轉(zhuǎn)子轉(zhuǎn)動(dòng)時(shí)的離心力以及通入葉片根部壓力油的作用下，葉片頂部貼緊在定子內(nèi)表面上，于是兩相鄰葉片、配油盤(pán)、定子和轉(zhuǎn)子間便形成了一個(gè)個(gè)密封的工作腔。當(dāng)轉(zhuǎn)子按逆時(shí)針?lè)较蛐D(zhuǎn)時(shí)，圖右側(cè)的葉片向外伸出，密封工作腔容積逐漸增大，產(chǎn)生真空，于是通過(guò)吸油口6和配油盤(pán)5上窗口將油吸入。而在圖的左側(cè)。葉片往里縮進(jìn)，密封腔的容積逐漸縮小，密封腔中的油液經(jīng)配油盤(pán)另一窗口和壓油口1被壓出而輸出到系統(tǒng)中去。這種泵在轉(zhuǎn)子轉(zhuǎn)一轉(zhuǎn)過(guò)程中，吸油壓油各一次，故稱(chēng)單作用泵。轉(zhuǎn)子受到徑向液壓不平衡作用力，故又稱(chēng)非平衡式泵，其軸承負(fù)載較大。改變定子和轉(zhuǎn)子間的偏心量，便可改變泵的排量，故這種泵都是變量泵。
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
它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(zhǎng)半徑圓弧、兩段短半徑圓弧和四段過(guò)渡曲線(xiàn)八個(gè)部分組成，且定子和轉(zhuǎn)子是同心的。在圖示轉(zhuǎn)子順時(shí)針?lè)较蛐D(zhuǎn)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(qū)，在左下角和右上角處逐漸減小，為壓油區(qū)；吸油區(qū)和壓油區(qū)之間有一段封油區(qū)把它們隔開(kāi)。這種泵的轉(zhuǎn)子每轉(zhuǎn)一轉(zhuǎn)，每個(gè)密封工作腔完成吸油和壓油動(dòng)作各兩次，所以稱(chēng)為雙作用葉片泵。泵的兩個(gè)吸油區(qū)和兩個(gè)壓油區(qū)是徑向?qū)ΨQ(chēng)的，作用在轉(zhuǎn)子上的液壓力徑向平衡，所以又稱(chēng)為平衡式葉片泵。 
雙作用葉片泵的瞬時(shí)流量是脈動(dòng)的，當(dāng)葉片數(shù)為4的倍數(shù)時(shí)脈動(dòng)率小。為此，雙作用葉片泵的葉片數(shù)一般都取12或16。
R961002468 WELLE PVV/PVQ54-1X/J+LAGER