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由轉(zhuan)(zhuan)(zhuan)子(zi)(zi)1、定(ding)(ding)子(zi)(zi)2、葉(xie)片(pian)(pian)3、配油(you)盤(pan)(pan)和(he)(he)端(duan)蓋等部件所組成(cheng)。定(ding)(ding)子(zi)(zi)的內(nei)表面(mian)(mian)是(shi)圓柱形(xing)(xing)孔(kong)。轉(zhuan)(zhuan)(zhuan)子(zi)(zi)和(he)(he)定(ding)(ding)子(zi)(zi)之間(jian)存在(zai)(zai)著偏(pian)心(xin)。葉(xie)片(pian)(pian)在(zai)(zai)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)的槽(cao)內(nei)可靈活滑動，在(zai)(zai)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)轉(zhuan)(zhuan)(zhuan)動時的離心(xin)力(li)以及通入葉(xie)片(pian)(pian)根(gen)部壓力(li)油(you)的作(zuo)用(yong)下，葉(xie)片(pian)(pian)頂部貼(tie)緊(jin)在(zai)(zai)定(ding)(ding)子(zi)(zi)內(nei)表面(mian)(mian)上，于是(shi)兩(liang)相(xiang)鄰葉(xie)片(pian)(pian)、配油(you)盤(pan)(pan)、定(ding)(ding)子(zi)(zi)和(he)(he)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)間(jian)便形(xing)(xing)成(cheng)了一個(ge)(ge)個(ge)(ge)密(mi)封的工(gong)作(zuo)腔(qiang)(qiang)。當(dang)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)按逆時針(zhen)方向旋轉(zhuan)(zhuan)(zhuan)時，圖右(you)側的葉(xie)片(pian)(pian)向外伸出(chu)，密(mi)封工(gong)作(zuo)腔(qiang)(qiang)容積逐漸增大，產生真(zhen)空，于是(shi)通過吸油(you)口6和(he)(he)配油(you)盤(pan)(pan)5上窗(chuang)口將油(you)吸入。而(er)在(zai)(zai)圖的左側。葉(xie)片(pian)(pian)往里縮(suo)進(jin)，密(mi)封腔(qiang)(qiang)的容積逐漸縮(suo)小(xiao)，密(mi)封腔(qiang)(qiang)中(zhong)(zhong)的油(you)液經配油(you)盤(pan)(pan)另一窗(chuang)口和(he)(he)壓油(you)口1被壓出(chu)而(er)輸出(chu)到系統中(zhong)(zhong)去(qu)。這種泵在(zai)(zai)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)轉(zhuan)(zhuan)(zhuan)一轉(zhuan)(zhuan)(zhuan)過程(cheng)中(zhong)(zhong)，吸油(you)壓油(you)各一次，故稱(cheng)單作(zuo)用(yong)泵。轉(zhuan)(zhuan)(zhuan)子(zi)(zi)受到徑向液壓不平衡(heng)作(zuo)用(yong)力(li)，故又稱(cheng)非平衡(heng)式(shi)泵，其軸承負載(zai)較大。改變定(ding)(ding)子(zi)(zi)和(he)(he)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)間(jian)的偏(pian)心(xin)量(liang)，便可改變泵的排量(liang)，故這種泵都是(shi)變量(liang)泵。

配油盤：雙作用葉片泵配油盤，
    如(ru)下圖所示

    在(zai)盤上(shang)有(you)兩(liang)個(ge)(ge)吸(xi)(xi)(xi)油(you)(you)(you)(you)(you)(you)窗(chuang)口2、4和(he)兩(liang)個(ge)(ge)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)窗(chuang)口1、3，窗(chuang)口之(zhi)(zhi)(zhi)間(jian)為封(feng)(feng)油(you)(you)(you)(you)(you)(you)區(qu)，通(tong)(tong)常應使(shi)(shi)(shi)封(feng)(feng)油(you)(you)(you)(you)(you)(you)區(qu)對應的(de)(de)(de)中心(xin)角a稍大于或等于兩(liang)個(ge)(ge)葉(xie)片(pian)之(zhi)(zhi)(zhi)間(jian)的(de)(de)(de)夾角B，否(fou)則(ze)會使(shi)(shi)(shi)吸(xi)(xi)(xi)油(you)(you)(you)(you)(you)(you)腔和(he)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)腔連通(tong)(tong)，造成泄漏。當兩(liang)個(ge)(ge)葉(xie)片(pian)間(jian)的(de)(de)(de)密(mi)封(feng)(feng)油(you)(you)(you)(you)(you)(you)液(ye)從吸(xi)(xi)(xi)油(you)(you)(you)(you)(you)(you)區(qu)過(guo)渡(du)到(dao)封(feng)(feng)油(you)(you)(you)(you)(you)(you)區(qu)（大圓弧處）時，其(qi)壓(ya)(ya)(ya)力(li)(li)基本上(shang)與(yu)吸(xi)(xi)(xi)油(you)(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)相同，但當轉(zhuan)子再繼續(xu)旋轉(zhuan)一個(ge)(ge)微(wei)小角度時，該密(mi)封(feng)(feng)腔突(tu)然(ran)與(yu)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)腔相通(tong)(tong)，使(shi)(shi)(shi)其(qi)中油(you)(you)(you)(you)(you)(you)液(ye)壓(ya)(ya)(ya)力(li)(li)突(tu)然(ran)升高(gao)，油(you)(you)(you)(you)(you)(you)液(ye)的(de)(de)(de)體積突(tu)然(ran)收縮，壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)腔中的(de)(de)(de)油(you)(you)(you)(you)(you)(you)液(ye)倒流進(jin)該腔，使(shi)(shi)(shi)液(ye)壓(ya)(ya)(ya)泵(beng)的(de)(de)(de)瞬時流量(liang)突(tu)然(ran)減小，引起液(ye)壓(ya)(ya)(ya)泵(beng)的(de)(de)(de)流量(liang)脈動(dong)、壓(ya)(ya)(ya)力(li)(li)脈動(dong)和(he)噪(zao)聲。因此在(zai)配油(you)(you)(you)(you)(you)(you)盤的(de)(de)(de)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)窗(chuang)口靠葉(xie)片(pian)從封(feng)(feng)油(you)(you)(you)(you)(you)(you)區(qu)進(jin)入壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)區(qu)的(de)(de)(de)一邊(bian)開有(you)一個(ge)(ge)截(jie)面形狀為三角形的(de)(de)(de)三角槽(cao)（又稱眉毛槽(cao)），使(shi)(shi)(shi)兩(liang)葉(xie)片(pian)之(zhi)(zhi)(zhi)間(jian)的(de)(de)(de)封(feng)(feng)閉油(you)(you)(you)(you)(you)(you)液(ye)在(zai)末進(jin)入壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)區(qu)之(zhi)(zhi)(zhi)前就(jiu)通(tong)(tong)過(guo)該三角槽(cao)與(yu)壓(ya)(ya)(ya)力(li)(li)油(you)(you)(you)(you)(you)(you)相通(tong)(tong)，使(shi)(shi)(shi)其(qi)壓(ya)(ya)(ya)力(li)(li)逐漸上(shang)升，因而緩解了(le)流量(liang)和(he)壓(ya)(ya)(ya)力(li)(li)脈動(dong)并(bing)降(jiang)低了(le)噪(zao)音。槽(cao)c與(yu)壓(ya)(ya)(ya)油(you)(you)(you)(you)(you)(you)腔相通(tong)(tong)并(bing)轉(zhuan)子葉(xie)片(pian)槽(cao)底(di)部相通(tong)(tong)，使(shi)(shi)(shi)葉(xie)片(pian)的(de)(de)(de)底(di)部作(zuo)用有(you)壓(ya)(ya)(ya)力(li)(li)油(you)(you)(you)(you)(you)(you)。

VICKERS柱塞泵部分型號：

威格(ge)士PVQ系列：PVQ5、PVQ10、PVQ13、PVQ20、PVQ25、PVQ29、PVQ45、PVQ32-B2R-SE1S，PVQ32-B2R-SS1S
PVB系(xi)列：PVB5、PVB10、PVB15、PVB20、PVB25、PVB29、PVB45
軸(zhou)向(xiang)柱(zhu)塞泵(beng)：PVB5/6、PVB10/15、PVB20/29、PVB45、PVB90;PVB20-F-MRSFXN
PV柱塞泵：PV066、PV090、PV130、PV180、PV250;
PVH柱塞泵：PVH57QIC，PVH63QIC，PVH74QIC，PVH81QIC，PVH98QIC，PVH106QIC，PVH131QICPVH141QIC，PVH074R13
PVM柱塞泵:PVM018/020、PVM045/050、PVM057/063、PVM131/14等(deng)
威格士泵(beng)芯：60S、57S、50S、47S、45S、42S、38S、35S、30S、25S、21S、17S、14S、12S、11S、9S、8S、5S威格士葉(xie)片泵(beng)　系(xi)列(Q)V10、V20、20V、25V、35V、45V。
威格(ge)士雙聯葉(xie)片泵：2520V、3520V、3525V、4520V、4525V