REXROTH葉片泵PVV2-1X/045RA15UVB R900947492，德國REXROTH葉片泵固定位移，購買進口液壓、氣動、自動化控制工業(yè)配件，認準“上海韋米機電設備有限公司”，7年老店，產品實拍，保證產品原廠原裝，價格優(yōu)惠，售后無憂，歡迎新老客戶咨詢采購！

單作用葉片泵
單作用葉片泵的定義:葉片在離力和壓力油的作用下，尖部緊貼在定子內表面上。通過改變兩個葉片與轉子和定子內表面所構成的工作容積大小變化，完成吸油排油過程，且葉片旋轉一周，完成一次吸油與排油的葉片泵。
特點: 
1.泵每轉一轉，每個密封腔吸油壓油一次
2.轉子上受液壓不平衡力，為非平衡式泵
3.改變偏心距大小，可改變排量，為變量泵

單作用葉片泵的工作原理
泵由轉子1、定子2、葉片3、配油盤和端蓋等部件所組成。定子的內表面是圓柱形孔。轉子和定子之間存在著偏心。葉片在轉子的槽內可靈活滑動，在轉子轉動時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表面上，于是兩相鄰葉片、配油盤、定子和轉子間便形成了一個個密封的工作腔。
當轉子按逆時針方向旋轉時，右側的葉片向外伸出，密封工作腔容積逐漸增大，產生真空，于是通過吸油口和配油盤上窗口將油吸入。而在圖的左側。葉片往里縮進，密封腔的容積逐漸縮小，密封腔中的油液經配油盤另一窗口和壓油口1被壓出而輸出到系統(tǒng)中去。

工作過程分析
單作用葉片泵的定子具有圓柱形內表面，定子和轉子間有偏心距。若有Z個葉片，則定子圓周被分成Z部分。這里用r表示轉子外圓半徑，用R表示定子內表面半徑。在垂直于轉子軸的平面內，s1表示密封工作空間的*小值(即葉片滑出的距離*短)，它在半徑方向的尺寸為[(R-e)-r]; S2表示密封工作空間的*大值(即葉片滑出的距離*長)，它在半徑方向的尺寸為[(R+e)-r]。

利用等效法推導計算公式
從單作用葉片泵的工作過程可以看出，在離心力的作用下，葉片的頂端一直與定子內壁接觸，由于定子內表面半徑為R，則其周長為2πR，而葉片的行程為2e,故在轉子轉動一周的過程中，任意相鄰的兩個葉片所圍成的工作腔，在半徑方向上的變化幅度都等于2e.在計算單作用葉片泵的排量時，可將其工作過程等效視為:葉片的頂端先集中在長度為2πR 直線段上，然后同時沿著定子圓周的法線方向移動2e的距離。則密封容積幾何尺寸的變化量可以等效長方體體積。

雙作用吐泵
基本介紹:轉子轉-圈，每個密封容積變化兩個循環(huán)，所以密封容積每圈內完成吸油、壓油各兩次，故稱為雙作用泵。相比于單作用泵，是變量泵，雙作用泵是定量泵。又因泵的兩個吸油窗口與兩個壓油窗口是徑向對稱的，作用于轉子上的液壓力是平衡的，以又稱為平衡式葉片泵
優(yōu)點:
①雙作用使排量增加一倍，流量也相應增加。
②吸壓、油口對稱于旋轉中心配置，旋轉軸上受到的液壓力是平衡的，
③軸和軸承上無徑向載荷，有利于提高泵的工作壓力。

結構
雙作用式葉片泵是由定子、轉子、葉片、配流盤和泵體組成，轉子與定子同心安裝，定子的內曲線是由兩段長半徑圓弧、兩段短半徑圓弧和四段過度曲線所組成，共有八段曲線。

工作原理
轉子做順時針旋轉，葉片在離心力作用下徑向伸出，其頂部在定子內曲線上滑動。此時，由兩葉片、轉子外圓、定子內曲線及兩側配有盤所組成的密閉的工作腔的容積在不斷地變化，在經過右下角以及左上角的配油窗口處時，葉片伸出，工作腔容積增加，形成真空，油液通過吸油窗吸入;在經過右_上角及左下角的配油窗口處時，葉片回縮，工作腔容積變小，壓強增大，液壓缸油液通過液壓窗口輸出。

雙作用葉片泵的困油現(xiàn)象
當相鄰兩葉片同時位于吸排口之間時，正好將吸排口隔開，這時就形成封油區(qū)，就可能出現(xiàn)困油問題。(旋轉時兩葉片間容量不變，雖不會發(fā)生困油，但從吸過渡到排，會產生壓力沖擊;葉片包角太小，產生困油，包角太大，吸排窗口溝通，工作失常。)解決方法配流盤的壓油窗口的一端開三角卸荷槽(減少過渡的壓力沖擊、脈動、噪聲;消除困油)。

性能特點
葉片泵壓力脈動小，因磨損而產生的工作壓力下降車小運轉平穩(wěn)、噪音較小，結構緊湊，起動轉矩小。但吸人條件較差，運動部件的工作可靠性較低。
1.流量較均勻，運轉平穩(wěn)，噪聲較低。
2.雙作用葉片泵轉子所受徑向力是平衡的，軸承壽命長;它的內部密封性也較好，容積效率較高;因此，一般額定排出壓力較高，可達7MPa左右。
3.結構緊湊，尺寸較小而流量較大。
4.對工作條件要求較嚴。葉片抗沖擊較差，較容易卡住，對油液的清潔程度和粘度都比較敏感。端面間隙或葉槽間隙不合適都會影響正常工作。轉速一-般在500~2000r /道范圍內，太低則葉片可能因離心力不夠而不能壓緊在定了表面，而太高則吸人時會產生“氣穴現(xiàn)象”；
5.結構較復雜，零件制造精度要求較高。
REXROTH葉片泵PVV2-1X/045RA15UVB R900947492
力士樂REXROTH葉片泵固定位移PVV
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R900946901 PVV21-1X/040-036RB15UUMB
R900963677 PVV21-1X/040-040RA15DDMB
R900946912 PVV21-1X/040-040RA15RRMB
R900968077 PVV21-1X/040-040RA15ULMB
R900979684 PVV21-1X/040-040RA15URMB
R900783697 PVV21-1X/040-040RA15UUMB
R901387678 PVV21-1X/040-040RJ15LLMB
R900939037 PVV21-1X/045-018RA15DDMB
R901210142 PVV21-1X/045-018RA15RRMB
R901238408 PVV21-1X/045-018RA15UDVB
R900979910 PVV21-1X/045-018RA15URMB
R900929463 PVV21-1X/045-018RA15UUMB
R900969172 PVV21-1X/045-018RB15URMB
R900715999 PVV21-1X/045-018RB15UUMB
R900779295 PVV21-1X/045-018RJ15DDMB
R900948168 PVV21-1X/045-027RA15DDMB
R900968783 PVV21-1X/045-027RA15UUMB
R901349893 PVV21-1X/045-027RB15DDMB
R901100678 PVV21-1X/045-027RJ15UUMB
R988007399 PVV21-1X/045-036RA15DDMB
R900737082 PVV21-1X/045-036RA15UUMB
R901042169 PVV21-1X/045-040LA15UUMB
R901312626 PVV21-1X/045-040RA15DDMB
R900968079 PVV21-1X/045-040RA15UDMB
R901023158 PVV21-1X/045-040RA15UUMB
R900959923 PVV21-1X/045-046LA15URMB
R900245088 PVV21-1X/045-046RA15RRMB
R901029935 PVV21-1X/045-046RA15UDMB
R900746610 PVV21-1X/045-046RA15UUMB
R987241465 PVV21-1X/055-008RA15DRMB
R901081361 PVV21-1X/055-018RA15DDMB
R978917770 PVV21-1X/055-018RA15DUMB
R901312152 PVV21-1X/055-018RA15RDMB
R978918708 PVV21-1X/055-018RA15RRMB
R900931901 PVV21-1X/055-018RA15UUMB
R901107242 PVV21-1X/055-018RA15UUVB
R901152021 PVV21-1X/055-018RB15UUMB
R900720409 PVV21-1X/055-027LA15DDMB
R978916167 PVV21-1X/055-027LR15DDMB
R900942940 PVV21-1X/055-027RA15DDMB
R987054443 PVV21-1X/055-027RA15URMB
R900952889 PVV21-1X/055-027RA15UUMB
R901023516 PVV21-1X/055-027RA15UUVB
R901085379 PVV21-1X/055-027RB15DDMB
R901127150 PVV21-1X/055-036RA15DDMB
R901004734 PVV21-1X/055-036RA15UUMB
R901433184 PVV21-1X/055-036RB15DDVB
R901233018 PVV21-1X/055-036RB15RRVB
R900945230 PVV21-1X/055-036RJ15DDMB
R901178544 PVV21-1X/055-040LA15RUMB
R978918255 PVV21-1X/055-046RA15DDMB
R901347445 PVV21-1X/055-046RA15RDMB
R900957021 PVV21-1X/055-046RA15UUMB
R901403735 PVV21-1X/055-046RB15DDMB
R901388030 PVV21-1X/060-007RB15DRMB
R901407867 PVV21-1X/060-018RA15DDMB
R901074552 PVV21-1X/060-018RA15DLMB
R978912986 PVV21-1X/060-018RA15URMB
R901147099 PVV21-1X/060-018RA15UUMB
R901074802 PVV21-1X/060-018RB15DDMB
R978914724 PVV21-1X/060-018RJ15URMB
R978903499 PVV21-1X/060-018RR15RDMB
R900783657 PVV21-1X/060-027RA15DDMB
R901178796 PVV21-1X/060-027RA15DDVB
R901240489 PVV21-1X/060-027RA15DLMB
R987185374 PVV21-1X/060-027RJ15UUMB
R900950523 PVV21-1X/060-036RA15DDMB
R900934058 PVV21-1X/060-040RA15DDMB
R900782771 PVV21-1X/060-040RA15RRMB
R901181997 PVV21-1X/060-040RA15UUMB
R901027983 PVV21-1X/060-040RB15DDVB
R901265465 PVV21-1X/060-040RJ15UUMB
R901116297 PVV21-1X/060-046RA15DDMB
R901112987 PVV21-1X/060-046RA15UUMB
R901162211 PVV21-1X/060-046RJ15UUMB
R901256580 PVV21-1X/068-007RJ15UUMB
R901330271 PVV21-1X/068-018LA15DDMB
R900964245 PVV21-1X/068-018RA15DDMB
R978908623 PVV21-1X/068-018RA15DRMB
R978916009 PVV21-1X/068-018RA15RLMB
R900934352 PVV21-1X/068-018RA15UUMB
R901368310 PVV21-1X/068-018RA15UUVB
R901085381 PVV21-1X/068-018RB15DDMB
R901210133 PVV21-1X/068-018RB15UUMB
R978015392 PVV21-1X/068-018RJ15UUMB
R901042503 PVV21-1X/068-027LA15DDMB
R900936748 PVV21-1X/068-027RA15DDMB
R900941696 PVV21-1X/068-027RA15DUMB
R900779416 PVV21-1X/068-027RA15LUMB
R978915050 PVV21-1X/068-027RA15RUMB
R901100169 PVV21-1X/068-027RA15URMB
R900947260 PVV21-1X/068-027RJ15DDMB
R901018122 PVV21-1X/068-036RA15DDMB
R901018123 PVV21-1X/068-036RA15DLMB
R901324834 PVV21-1X/068-036RA15UUMB
R900968781 PVV21-1X/068-036RB15DDMB
R901127167 PVV21-1X/068-036RJ15DDMB
R978905663 PVV21-1X/068-036RR15DDMB
R901215220 PVV21-1X/068-040LA15DDMB
R900948951 PVV21-1X/068-040RA15DDMB
R901207154 PVV21-1X/068-046RA15DDMB
R978016604 PVV21-1X/068-046RA15LUMBSO43A-1802
R901031658 PVV21-1X/068-046RA15UUMB
R901055513 PVV21-1X/068-046RJ15DDMB
R901224561 PVV21-1X/068-046RJ15DDMB-A462
R901243981 PVV21-1X/068-046RJ15LLMB
R987241624 PVV21-1X/27-08RA15DRMB
R987241579 PVV21-1X/60-18RA15DDMB
R900942738 PVV4-1X/069LA15DMC
R901094499 PVV4-1X/069LA15DVC
R900936293 PVV4-1X/069RA15DMC
R978908421 PVV4-1X/069RA15DVC
R900954911 PVV4-1X/069RA15LMC
R901308372 PVV4-1X/069RA15RVC
R900935445 PVV4-1X/069RA15UMC
R987384554 PVV4-1X/069RA15UMC
R900761017 PVV4-1X/069RB15DMCK01
R900761018 PVV4-1X/069RB15DMCK02
R900761021 PVV4-1X/069RB15DMCK07
R900948714 PVV4-1X/069RB15RMC
R901041190 PVV4-1X/069RB15RVC
R987014455 PVV4-1X/069RB15UMC
R987149783 PVV4-1X/069RB15UMCK01
R900948297 PVV4-1X/069RJ15DMC
R901341375 PVV4-1X/069RJ15DMCK02
R901368512 PVV4-1X/069RJ15DVC
R987098776 PVV4-1X/069RJ15LMC
R901275313 PVV4-1X/069RJ15RMC
R901039283 PVV4-1X/069RJ15UMC
R978034977 PVV4-1X/069RJ15UVC
R900942737 PVV4-1X/082LA15DMC
R901094472 PVV4-1X/082LA15DVC
R978908556 PVV4-1X/082LA15LMC
R900958918 PVV4-1X/082LA15LVC
R901014437 PVV4-1X/082LA15UMC
R901283231 PVV4-1X/082LJ15DMCK02
R901303893 PVV4-1X/082LJ15DVC
R900758709 PVV4-1X/082LJ15UMC
R901283238 PVV4-1X/082LJ15UMCK02
R900931548 PVV4-1X/082RA15DMC
R900978703 PVV4-1X/082RA15DVC
R900937330 PVV4-1X/082RA15LMC
R900933057 PVV4-1X/082RA15RMC
R901082163 PVV4-1X/082RA15RVC
R900931136 PVV4-1X/082RA15UMC
R900710468 PVV4-1X/082RA15UVC
R900940214 PVV4-1X/082RB15DMC
R987129858 PVV4-1X/082RB15DMC-K01+PGP2-2X/011RJ20VU
R900761025 PVV4-1X/082RB15DMCK01
R987127294 PVV4-1X/082RB15DMCK01+PGH2-2X/008RR07VU2
R987068731 PVV4-1X/082RB15DMCK01+PGH3-2X/011RR07MU2
R987072516 PVV4-1X/082RB15DMCK01+PGH3-2X/013RR07MU2
R987425458 PVV4-1X/082RB15DMCK01+PGP2-2X/013RJ20VU2
R900761023 PVV4-1X/082RB15DMCK02
R900761029 PVV4-1X/082RB15DMCK07
R900715998 PVV4-1X/082RB15UMC
R900946902 PVV4-1X/082RB15UVC
R900945850 PVV4-1X/082RJ15DMC
R901347683 PVV4-1X/082RJ15DVCK01
R901433987 PVV4-1X/082RJ15LMC
R901448926 PVV4-1X/082RJ15UEC
R901024704 PVV4-1X/082RJ15UMC
R978005715 PVV4-1X/082RJ15UMCK01
R901446030 PVV4-1X/082RJ15UMCK02-C3.1
R902650465 PVV4-1X/098-RJ15DMC
R988017043 PVV4-1X/098LA15DMC
R901213735 PVV4-1X/098LA15RMC
R900962288 PVV4-1X/098LA15UMC
R900767419 PVV4-1X/098LA15UVC
R978910094 PVV4-1X/098LR15RVC
R900936294 PVV4-1X/098RA15DMC
R900947259 PVV4-1X/098RA15DVC
R901045673 PVV4-1X/098RA15LMC
R978011061 PVV4-1X/098RA15LVC
R900941699 PVV4-1X/098RA15RMC
R900744476 PVV4-1X/098RA15RVC
R900930907 PVV4-1X/098RA15UMC
R900728943 PVV4-1X/098RA15UVC
R900928299 PVV4-1X/098RB15DMC
R900761030 PVV4-1X/098RB15DMCK01
R987072514 PVV4-1X/098RB15DMCK01+PGH3-2X/016RR07VU2
R987439159 PVV4-1X/098RB15DMCK01+PGP2-2X/016RJ20VU2
R900761032 PVV4-1X/098RB15DMCK02
R900761033 PVV4-1X/098RB15DMCK07
R978030691 PVV4-1X/098RB15DVC
R900942222 PVV4-1X/098RB15UMC
R900939077 PVV4-1X/098RJ15DMC
R901202228 PVV4-1X/098RJ15DMCK01
R901078254 PVV4-1X/098RJ15DMCK02
R901469532 PVV4-1X/098RJ15LMC
R900942108 PVV4-1X/098RJ15UMC
R901357577 PVV4-1X/098RJ15UVC
R978916245 PVV4-1X/098RR15DVC
R978909572 PVV4-1X/098RR15RVC
R978914263 PVV4-1X/098RR15UMBK01
R978025567 PVV4-1X/113LA15LMC
R901306832 PVV4-1X/113LA15LVC
R901055602 PVV4-1X/113LA15UMC
R900936491 PVV4-1X/113RA15DMC
R900963679 PVV4-1X/113RA15DVC
R978909757 PVV4-1X/113RA15LMC
R901050835 PVV4-1X/113RA15LVC
R978911957 PVV4-1X/113RA15RMC
R978908367 PVV4-1X/113RA15RVC
R900938819 PVV4-1X/113RA15UMC
R900943054 PVV4-1X/113RA15UVC
R901238155 PVV4-1X/113RB15DMC
R900761035 PVV4-1X/113RB15DMCK01
R900761036 PVV4-1X/113RB15DMCK02
R987136817 PVV4-1X/113RB15DMCK02+ PVV2/060RJ15DMB
R987265121 PVV4-1X/113RB15DMCK04
R900761037 PVV4-1X/113RB15DMCK07
R901014435 PVV4-1X/113RB15RMC
R900704433 PVV4-1X/113RJ15DMC
R901267064 PVV4-1X/113RJ15DMCK01
R901448927 PVV4-1X/113RJ15UEC
R900616927 PVV4-1X/113RJ15UMC
R901134663 PVV4-1X/113RJ15UVC
R978911051 PVV4-1X/113RR15RMC
R901037959 PVV4-1X/122LA15DMC
R901037627 PVV4-1X/122LA15LMC
R900940361 PVV4-1X/122LA15UMC
R987276276 PVV4-1X/122LB15RMCK01
R900770920 PVV4-1X/122LJ15DMC
R987278211 PVV4-1X/122LJ15RMCK01
R900978729 PVV4-1X/122LJ15UMC
R900929542 PVV4-1X/122RA15DMC
R901012238 PVV4-1X/122RA15DVC
R900945761 PVV4-1X/122RA15LMC
R901104702 PVV4-1X/122RA15RMC
R900928961 PVV4-1X/122RA15UMC
R978037165 PVV4-1X/122RA15UVC
R900942488 PVV4-1X/122RB15DMC
R900761040 PVV4-1X/122RB15DMCK01
R987349604 PVV4-1X/122RB15DMCK01+AZPF-22-019RRR20MB
R987136854 PVV4-1X/122RB15DMCK01+PHG2-2X/008RR07VU2
R900763517 PVV4-1X/122RB15DMCK02
R900763515 PVV4-1X/122RB15DMCK07
R901269964 PVV4-1X/122RB15UMC
R987138873 PVV4-1X/122RB15UMCK01
R901440209 PVV4-1X/122RB15UMCK07
R900941692 PVV4-1X/122RJ15DMC
R978020290 PVV4-1X/122RJ15DMCK01
R901236531 PVV4-1X/122RJ15DVC
R900978728 PVV4-1X/122RJ15UMC
R978909076 PVV4-1X/122RR15UMC
R987130398 PVV4-1X/82RB15DMCK02+V2-1X/55RJ15DMB
R900966979 PVV41-1X/069-018RA15DDMC
R978916655 PVV41-1X/069-018RA15URMC
R900729680 PVV41-1X/069-018RA15UUMC
R901002834 PVV41-1X/069-018RJ15UUMC
R978905694 PVV41-1X/069-027RA15DDMC
R978904324 PVV41-1X/069-036RA15DDMC
R901061667 PVV41-1X/069-036RA15UUMC
R900976361 PVV41-1X/069-046RA15DDMC
R900784926 PVV41-1X/069-046RA15UUMC
R901332527 PVV41-1X/082-007RJ15UUMC
R900971144 PVV41-1X/082-018RA15DDMC
R901060382 PVV41-1X/082-018RA15RRMC
R901123353 PVV41-1X/082-018RA15RRVC
R900740617 PVV41-1X/082-018RA15URMC
R900935446 PVV41-1X/082-018RA15UUMC
R901114935 PVV41-1X/082-018RB15DDMC
R901012150 PVV41-1X/082-018RB15UUMC
R900938581 PVV41-1X/082-018RJ15DDMC
R900948952 PVV41-1X/082-027RA15DDMC
R901009014 PVV41-1X/082-027RA15UDMC
R901098914 PVV41-1X/082-027RA15URMC
R900740057 PVV41-1X/082-027RA15UUMC
R900247179 PVV41-1X/082-036LA15LLMC
R901092271 PVV41-1X/082-036RA15LLMC
R978911836 PVV41-1X/082-036RA15UUMC
R901149901 PVV41-1X/082-036RB15LLMC
R900937555 PVV41-1X/082-040RA15DDMC
R901042651 PVV41-1X/082-040RA15UUMC
R901433617 PVV41-1X/082-040RB15DDMC
R900962286 PVV41-1X/082-046LA15DDMC
R978910703 PVV41-1X/082-046RA15DDMC
R901120947 PVV41-1X/082-046RA15UUMC
R900778721 PVV41-1X/082-046RJ15UUVC
R900723634 PVV41-1X/098-018RA15DDMC
R978916008 PVV41-1X/098-018RA15RLMC
R900740618 PVV41-1X/098-018RA15URMC
R900976172 PVV41-1X/098-018RA15UUMC
R901287863 PVV41-1X/098-018RB15UUVC
R978909097 PVV41-1X/098-018RR15DDMC
R900936291 PVV41-1X/098-027RA15DDMC
R900943027 PVV41-1X/098-027RA15UDMC
R900740058 PVV41-1X/098-027RA15UUMC
R901416927 PVV41-1X/098-027RA15UUVC
R900716000 PVV41-1X/098-027RB15UUMC
R901313833 PVV41-1X/098-027RJ15UUMC
R978912953 PVV41-1X/098-036RA15DDMC
R901392484 PVV41-1X/098-036RJ15UUMC
R900949076 PVV41-1X/098-040RA15DDMC
R901027985 PVV41-1X/098-040RB15UUMC
R901088407 PVV41-1X/098-046RA15DDMC
R901055514 PVV41-1X/098-046RA15UUMC
R987202697 PVV41-1X/098-046RJ15DDMC
R900784502 PVV41-1X/098-046RJ15UUMC
R901011033 PVV41-1X/113-018RA15DDMC
R901339241 PVV41-1X/113-018RA15UUMC
R901085385 PVV41-1X/113-018RB15DDMC
R900755617 PVV41-1X/113-027RA15DDMC
R900932435 PVV41-1X/113-027RA15UUMC
R901219398 PVV41-1X/113-027RJ15UUMC
R978917192 PVV41-1X/113-036RA15DDMC
R900932438 PVV41-1X/113-036RA15UUMC
R978910159 PVV41-1X/113-040RA15DDMC
R978022444 PVV41-1X/113-040RA15UUMC
R978910201 PVV41-1X/113-040RJ15DDMC
R978914257 PVV41-1X/113-046RA15RLMC
R901138557 PVV41-1X/113-046RJ15UUMC
R901409780 PVV41-1X/122-018LA15DDMC
R900944135 PVV41-1X/122-018RA15DDMC
R901375829 PVV41-1X/122-018RA15DDVC
R900617254 PVV41-1X/122-018RA15UDMC
R900618171 PVV41-1X/122-018RA15UUMC
R978018102 PVV41-1X/122-018RJ15UDMC
R900776218 PVV41-1X/122-018RJ15UUMC
R901020330 PVV41-1X/122-027RA15DDMC
R978914689 PVV41-1X/122-027RA15RLMC
R900935879 PVV41-1X/122-027RA15UUMC
R900772394 PVV41-1X/122-027RA15UUVC
R901085383 PVV41-1X/122-027RB15DDMC
R901257482 PVV41-1X/122-027RB15UUMC
R900945209 PVV41-1X/122-036RA15DDMC
R978902921 PVV41-1X/122-036RA15UDMC
R901094048 PVV41-1X/122-036RA15UUMC
R901142140 PVV41-1X/122-036RA15UUVC
R900937151 PVV41-1X/122-036RB15DDMC
R978916644 PVV41-1X/122-040RA15DDMC
R978903485 PVV41-1X/122-046RA15LUMC
R901075200 PVV41-1X/122-046RA15UUMC
R978915771 PVV42-1X/069-040RA15DDMC
R901086729 PVV42-1X/069-040RA15UUVC
R901374059 PVV42-1X/069-040RJ15UUMC
R900947491 PVV42-1X/069-045RA15DDMC
R901287901 PVV42-1X/069-045RA15UUVC
R978912934 PVV42-1X/069-045RJ15DDMC
R978913882 PVV42-1X/069-045RJ15URMC
R978913240 PVV42-1X/069-045RR15URMC
R901226906 PVV42-1X/069-055RA15DDMC
R978915049 PVV42-1X/069-055RA15LLMC
R900931549 PVV42-1X/069-055RA15UUMC
R900732738 PVV42-1X/069-068RA15DDMC
R978918403 PVV42-1X/069-068RA15DLMC
R901033601 PVV42-1X/069-068RA15UUMC
R900949077 PVV42-1X/082-040RA15DDMC
R901030052 PVV42-1X/082-040RA15UUMC
R978916362 PVV42-1X/082-040RB15LUMC
R901138307 PVV42-1X/082-045RA15DDMC
R900937333 PVV42-1X/082-045RA15UUMC
R901085390 PVV42-1X/082-045RB15DDMC
R901233017 PVV42-1X/082-045RB15RRVC
R901336865 PVV42-1X/082-045RJ15UUMC
R901103575 PVV42-1X/082-055RA15DDMC
R901137129 PVV42-1X/082-055RB15DDMC
R900967838 PVV42-1X/082-055RB15URMC
R901256579 PVV42-1X/082-055RJ15URMC
R901409674 PVV42-1X/082-068LA15UUMC
R900703601 PVV42-1X/082-068RA15DDMC
R901356624 PVV42-1X/082-068RA15RDMC
R978026839 PVV42-1X/082-068RA15URVC
R901086511 PVV42-1X/082-068RA15UUMC
R901224750 PVV42-1X/082-068RB15DDMC
R978912711 PVV42-1X/082-068RR15DDVC
R901324647 PVV42-1X/098-040RA15UUMC
R901085387 PVV42-1X/098-040RB15DDMC
R900934061 PVV42-1X/098-045RA15DDMC
R901224377 PVV42-1X/098-045RA15RRMC
R901024456 PVV42-1X/098-045RA15UUMC
R900948953 PVV42-1X/098-055RA15DDMC
R978916627 PVV42-1X/098-055RA15LUMC
R900940632 PVV42-1X/098-055RA15UUMC
R978916619 PVV42-1X/098-055RB15LUMC
R901256578 PVV42-1X/098-055RB15ULMC
R901251062 PVV42-1X/098-060RA15UUMC
R978030526 PVV42-1X/098-068LA15RLMC
R900949509 PVV42-1X/098-068RA15DDMC
R900971002 PVV42-1X/098-068RA15DLMC
R901367690 PVV42-1X/098-068RA15RDMC
R978915231 PVV42-1X/098-068RA15RLMC
R901110860 PVV42-1X/098-068RA15UUMC
R901223522 PVV42-1X/098-068RB15DDMC
R900717796 PVV42-1X/098-068RB15LLMC
R901063719 PVV42-1X/098-068RB15UUMC
R901056501 PVV42-1X/098-068RJ15UUMC
R901439715 PVV42-1X/113-040RA15RUMC
R901041497 PVV42-1X/113-040RA15UUMC
R901227022 PVV42-1X/113-045RJ15UUMC
R978913785 PVV42-1X/113-055RA15DDMC
R901075202 PVV42-1X/113-055RA15UUMC
R987141904 PVV42-1X/113-055RA15UUMC
R900716002 PVV42-1X/113-055RB15UUMC
R901336864 PVV42-1X/113-055RJ15UUMC
R900951891 PVV42-1X/113-060RA15DDMC
R900965258 PVV42-1X/113-060RA15URMC
R900755932 PVV42-1X/113-060RA15UUMC
R901137121 PVV42-1X/113-060RB15DDMC
R900945211 PVV42-1X/113-068RA15DDMC
R901246612 PVV42-1X/113-068RA15LLMC
R901256807 PVV42-1X/113-068RA15UUMC
R983035242 PVV42-1X/113-068RA15UUMC
R900941697 PVV42-1X/113-068RB15URMC
R900945231 PVV42-1X/113-068RJ15DDMC
R978910728 PVV42-1X/122-040RA15DDMC
R978914607 PVV42-1X/122-040RA15RLMC
R901439720 PVV42-1X/122-040RA15RUMC
R900965263 PVV42-1X/122-040RA15UUMC
R901370828 PVV42-1X/122-045RA15RRMC
R901357359 PVV42-1X/122-045RA15RUMC
R900619885 PVV42-1X/122-055RA15DDMC
R900972481 PVV42-1X/122-055RA15UUMC
R901330272 PVV42-1X/122-068LA15DDMC
R901330266 PVV42-1X/122-068LA15UUMC
R978905664 PVV42-1X/122-068RA15DDMC
R901070191 PVV42-1X/122-068RA15DLMC
R900737709 PVV42-1X/122-068RA15UUMC
R900616748 PVV42-1X/122-068RJ15UUMC
R987204309 PVV51X/139RB15UMC
R900949679 PVV5-1X/139LA15DMC
R901228246 PVV5-1X/139LA15UMC
R901427045 PVV5-1X/139LJ15UVC
R978033238 PVV5-1X/139LR15LMC
R900932732 PVV5-1X/139RA15DMC
R900946296 PVV5-1X/139RA15DVC
R900937331 PVV5-1X/139RA15LMC
R900947385 PVV5-1X/139RA15RVC
R900954326 PVV5-1X/139RA15UMC
R901175029 PVV5-1X/139RA15UVC
R988004745 PVV5-1X/139RB15DMB
R900942116 PVV5-1X/139RB15DMC
R900761042 PVV5-1X/139RB15DMCK01
R900761043 PVV5-1X/139RB15DMCK02
R900761044 PVV5-1X/139RB15DMCK07
R901340281 PVV5-1X/139RB15DVCK07
R901396114 PVV5-1X/139RB15RMCK02
R978910482 PVV5-1X/139RB15UMC
R901313832 PVV5-1X/139RB15UMCK01
R987380314 PVV5-1X/139RB15UMCK01
R901282428 PVV5-1X/139RB15UMCK07
R987111272 PVV5-1X/139RB15UVCK07+V5-139+V5-139RJUVC
R900704434 PVV5-1X/139RJ15DMC
R901305617 PVV5-1X/139RJ15DMCK01
R901426929 PVV5-1X/139RJ15DMCK07
R987125464 PVV5-1X/139RJ15DMCK07
R900616633 PVV5-1X/139RJ15UMC
R901262946 PVV5-1X/139RJ15UMCK02
R901340796 PVV5-1X/139RJ15UMCK07
R978902193 PVV5-1X/139RR15UMC
R900949680 PVV5-1X/154LA15DMC
R900245062 PVV5-1X/154LA15UMC
R900936296 PVV5-1X/154RA15DMC
R987380315 PVV5-1X/154RA15DMC-SO47-639
R978914375 PVV5-1X/154RA15DVC
R901167746 PVV5-1X/154RA15RMC
R900943716 PVV5-1X/154RA15UMC
R900763904 PVV5-1X/154RB15DMC
R900761045 PVV5-1X/154RB15DMCK01
R900761046 PVV5-1X/154RB15DMCK02
R900761047 PVV5-1X/154RB15DMCK07
R987406583 PVV5-1X/154RB15DMCK07+ PVV5-1X/154RJ15RMC
R978905309 PVV5-1X/154RB15LMC
R901308374 PVV5-1X/154RB15RMCK07
R900704435 PVV5-1X/154RJ15DMC
R901214987 PVV5-1X/154RJ15DMCK01
R901108431 PVV5-1X/154RJ15DVC
R901308373 PVV5-1X/154RJ15RMC
R901386894 PVV5-1X/154RJ15RMC-C3.1
R901448928 PVV5-1X/154RJ15UEC
R901218683 PVV5-1X/154RJ15UMC
R901076988 PVV5-1X/162LA15DMC
R900941941 PVV5-1X/162LA15UMC
R900780572 PVV5-1X/162LB15UMC
R901229775 PVV5-1X/162LJ15DMC
R900936492 PVV5-1X/162RA15DMC
R900957754 PVV5-1X/162RA15DVC
R901265467 PVV5-1X/162RA15LMC
R900977417 PVV5-1X/162RA15RMC
R900936923 PVV5-1X/162RA15UMC
R900961793 PVV5-1X/162RA15UVC
R900928301 PVV5-1X/162RB15DMC
R900761048 PVV5-1X/162RB15DMCK01
R900761049 PVV5-1X/162RB15DMCK02
R900761050 PVV5-1X/162RB15DMCK07
R900970917 PVV5-1X/162RB15DVC
R901178792 PVV5-1X/162RB15LMC
R978910654 PVV5-1X/162RB15RMC
R901396110 PVV5-1X/162RB15RMCK02
R900934793 PVV5-1X/162RB15UMC
R901276842 PVV5-1X/162RB15UMCK01
R900704436 PVV5-1X/162RJ15DMC
R901177740 PVV5-1X/162RJ15DMCK02
R987011583 PVV5-1X/162RJ15RMC
R900618720 PVV5-1X/162RJ15UMC
R900949682 PVV5-1X/183LA15DMC
R900977570 PVV5-1X/183LA15LMC
R978030690 PVV5-1X/183LA15UMC
R900936297 PVV5-1X/183RA15DMC
R978906596 PVV5-1X/183RA15DVC
R900962478 PVV5-1X/183RA15LMC
R900939041 PVV5-1X/183RA15RMC
R900942110 PVV5-1X/183RA15UMC
R900727125 PVV5-1X/183RA15UVC
R978915044 PVV5-1X/183RB15DMC
R900764220 PVV5-1X/183RB15DMCK01
R900763899 PVV5-1X/183RB15DMCK02
R900763901 PVV5-1X/183RB15DMCK07
R900704437 PVV5-1X/183RJ15DMC
R901267067 PVV5-1X/183RJ15DMCK07
R901446939 PVV5-1X/183RJ15DVC
R901234702 PVV5-1X/183RJ15LMC
R901324642 PVV5-1X/183RJ15UMC
R978915053 PVV5-1X/183RR15DMC
R978914262 PVV5-1X/183RR15UMCK07
R900949681 PVV5-1X/193LA15DMC
R901317110 PVV5-1X/193LA15RMC
R900944546 PVV5-1X/193LA15UMC
R900945544 PVV5-1X/193LB15DMC
R900946267 PVV5-1X/193LB15UMC
R901280592 PVV5-1X/193LJ15DMC
R901425064 PVV5-1X/193LJ15DMCK01
R901330267 PVV5-1X/193LJ15UMC
R900929349 PVV5-1X/193RA15DMC
R901080702 PVV5-1X/193RA15DVC
R901106500 PVV5-1X/193RA15LMC
R901231507 PVV5-1X/193RA15LVC
R900939042 PVV5-1X/193RA15RMC
R900775887 PVV5-1X/193RA15RVC
R900928769 PVV5-1X/193RA15UMC
R901023517 PVV5-1X/193RA15UVC
R900928302 PVV5-1X/193RB15DMC
R900763902 PVV5-1X/193RB15DMCK01
R987407191 PVV5-1X/193RB15DMCK01+PGH2-2X/005RR07VU2
R900763903 PVV5-1X/193RB15DMCK02
R900725336 PVV5-1X/193RB15DMCK07
R978042473 PVV5-1X/193RB15LVC
R900942489 PVV5-1X/193RB15UMC
R978901666 PVV5-1X/193RB15UMCSO43A-1525
R901324641 PVV5-1X/193RB15UMCK07
R900939078 PVV5-1X/193RJ15DMC
R901418005 PVV5-1X/193RJ15DMCK01
R901264244 PVV5-1X/193RJ15DMCK07
R901396111 PVV5-1X/193RJ15RMC
R901422036 PVV5-1X/193RJ15UEC
R900758506 PVV5-1X/193RJ15UMC
R901426266 PVV5-1X/193RJ15UMCK02-A508
R901236286 PVV5-1X/193RJ15UMCK07
R901238152 PVV51-1X/139-018RA15DDMC
R901160721 PVV51-1X/139-018RA15DLMC
R988004373 PVV51-1X/139-018RA15DLMC
R978045701 PVV51-1X/139-018RA15UUMC
R901377083 PVV51-1X/139-018RB15DDMC
R901078751 PVV51-1X/139-018RJ15DLMC
R901041584 PVV51-1X/139-018RJ15UUMC
R978910706 PVV51-1X/139-027RA15DDMC
R901116697 PVV51-1X/139-027RA15DLMC
R978918406 PVV51-1X/139-027RA15RLMC
R901040226 PVV51-1X/139-027RA15UUMC
R901085392 PVV51-1X/139-027RB15DDMC
R901069521 PVV51-1X/139-027RB15LLMC
R901391701 PVV51-1X/139-027RB15UUMC
R978024942 PVV51-1X/139-027RJ15RDMC
R978919341 PVV51-1X/139-027RJ15UUMC
R978934733 PVV51-1X/139-036RA15RLMC
R900617738 PVV51-1X/139-040RA15UUMC
R978913192 PVV51-1X/139-040RB15UDMC
R901276281 PVV51-1X/139-040RJ15UUMC
R900948873 PVV51-1X/139-046LB15UUMC
R900938791 PVV51-1X/139-046RA15DDMC
R901365371 PVV51-1X/139-046RA15URMC
R900949683 PVV51-1X/154-018LA15DDMC
R900970311 PVV51-1X/154-018RA15UUMC
R900949674 PVV51-1X/154-027RA15DDMC
R978918527 PVV51-1X/154-027RA15DLMC
R901017574 PVV51-1X/154-027RA15RLMC
R901099056 PVV51-1X/154-027RA15RRVC
R901391720 PVV51-1X/154-027RB15UUMC
R900949673 PVV51-1X/154-036RA15DDMC
R900970712 PVV51-1X/154-040RA15DDMC
R901247455 PVV51-1X/154-040RA15RRMC
R900967803 PVV51-1X/154-046RA15DDMC
R978914369 PVV51-1X/154-046RA15UUMC
R901085395 PVV51-1X/154-046RB15DDMC
R901330270 PVV51-1X/162-018RA15DDMC
R901361672 PVV51-1X/162-018RA15DDVC
R901391271 PVV51-1X/162-018RA15UUMC
R900969766 PVV51-1X/162-018RA15UUVC
R901143088 PVV51-1X/162-018RJ15DLMC
R901170122 PVV51-1X/162-018RJ15UUMC
R900937334 PVV51-1X/162-027RA15UUMC
R901392759 PVV51-1X/162-027RJ15DRMC
R900948955 PVV51-1X/162-036RA15DDMC
R900945224 PVV51-1X/162-036RB15DDMC
R978910045 PVV51-1X/162-040RA15UUMC
R901143091 PVV51-1X/162-040RJ15DLMC
R901024714 PVV51-1X/162-046RA15DDMC
R978916360 PVV51-1X/162-046RA15LRMC
R901178791 PVV51-1X/162-046RB15LLMC
R900949684 PVV51-1X/183-018LA15DDMC
R900970312 PVV51-1X/183-018RA15UUMC
R901216293 PVV51-1X/183-018RB15DDMC
R901011212 PVV51-1X/183-018RB15DLMC
R901415136 PVV51-1X/183-018RB15LRMC
R901273185 PVV51-1X/183-018RB15UUMC
R978907959 PVV51-1X/183-018RR15DDVC
R900949675 PVV51-1X/183-027RA15DDMC
R900617289 PVV51-1X/183-027RB15UUMC
R978046082 PVV51-1X/183-036RA15DDMC
R901142155 PVV51-1X/183-040RA15DDMC
R900941701 PVV51-1X/183-040RA15UUMC
R901174275 PVV51-1X/183-040RB15DDMC
R978910505 PVV51-1X/183-040RR15DDMC
R901467944 PVV51-1X/183-046LA15DDMC
R900949676 PVV51-1X/183-046RA15DDMC
R978918961 PVV51-1X/183-046RA15URMC
R900949685 PVV51-1X/193-018LA15DDMC
R901023323 PVV51-1X/193-018LA15UUMC
R978916581 PVV51-1X/193-018RA15DDMC
R901294686 PVV51-1X/193-018RA15DLMC
R901061186 PVV51-1X/193-018RA15LDMC
R901020612 PVV51-1X/193-018RA15UUMC
R900957014 PVV51-1X/193-018RB15DDMC
R988004374 PVV51-1X/193-018RB15DDMC
R978042741 PVV51-1X/193-018RB15DDVC
R901190883 PVV51-1X/193-018RB15LLMC
R901198989 PVV51-1X/193-018RJ15UUMC
R901018832 PVV51-1X/193-027RA15DDMC
R901430516 PVV51-1X/193-027RA15UDMC
R901036232 PVV51-1X/193-027RA15UUMC
R901077322 PVV51-1X/193-027RB15UUMC
R900936334 PVV51-1X/193-036RA15LLMC
R900931083 PVV51-1X/193-036RA15RRMC
R901153975 PVV51-1X/193-036RA15UUMC
R901408785 PVV51-1X/193-036RB15DDMC
R978915221 PVV51-1X/193-036RB15DDVC
R978045188 PVV51-1X/193-040LA15DDMC
R901227483 PVV51-1X/193-040RA15DDMC
R901053014 PVV51-1X/193-046LA15DLMC
R901057121 PVV51-1X/193-046RA15DDMC
R901053049 PVV51-1X/193-046RA15DLMC
R901330896 PVV51-1X/193-046RA15UDMC
R987241779 PVV51-1X/193-046RA15UDMC
R900941700 PVV51-1X/193-046RA15UUMC
R900736527 PVV51-1X/193-046RB15DDMC
R901244213 PVV51-1X/193-046RB15UDMC
R901273101 PVV52-1X/139-040RA15DDMC
R901292644 PVV52-1X/139-040RA15DDVC
R901220388 PVV52-1X/139-040RJ15UUMC
R901269544 PVV52-1X/139-045LA15UUMC
R901042161 PVV52-1X/139-045RA15DDMC
R900945232 PVV52-1X/139-045RJ15DDMC
R978916849 PVV52-1X/139-046RJ15UUMC
R901330960 PVV52-1X/139-055RA15DDMC
R901439712 PVV52-1X/139-055RA15RUMC
R900725192 PVV52-1X/139-068RA15DDMC
R901116694 PVV52-1X/139-068RA15DLMC
R900942109 PVV52-1X/139-068RA15UUMC
R901263374 PVV52-1X/139-068RB15DUMC
R978910434 PVV52-1X/154-040RA15DDMC
R901339232 PVV52-1X/154-045RA15DDMC
R900963882 PVV52-1X/154-045RB15DDMC
R900939038 PVV52-1X/154-055RA15DDMC
R901089061 PVV52-1X/154-055RA15UUMC
R900939680 PVV52-1X/154-060RA15DDMC
R901223655 PVV52-1X/154-068RA15UUMC
R901085398 PVV52-1X/154-068RB15DDMC
R901404614 PVV52-1X/154-068RJ15UUMC
R987033235 PVV52-1X/154-55RJ15UUMC
R978913881 PVV52-1X/162-040RA15DDMC
R900973886 PVV52-1X/162-040RA15RDMC
R901357356 PVV52-1X/162-040RA15RUMC
R901002827 PVV52-1X/162-040RA15UUMC
R901412027 PVV52-1X/162-045RA15DDMC
R901381680 PVV52-1X/162-055RA15DDMC
R901255948 PVV52-1X/162-055RA15RDMC
R900728945 PVV52-1X/162-055RA15UDMC
R901276424 PVV52-1X/162-055RA15UUMC
R901085400 PVV52-1X/162-055RB15DDMC
R900738922 PVV52-1X/162-055RB15LLMC
R901014425 PVV52-1X/162-060RA15UUMC
R978910704 PVV52-1X/162-068RA15DDMC
R901002823 PVV52-1X/162-068RA15UUMC
R901007059 PVV52-1X/162-068RB15DDMC
R901247411 PVV52-1X/162-068RB15UUMC
R901294741 PVV52-1X/162-068RJ15UUMC
R901366321 PVV52-1X/183-045RA15UUMC
R900961567 PVV52-1X/183-055RB15DDMC
R900945122 PVV52-1X/183-055RB15DUMC
R900616634 PVV52-1X/183-055RB15LLMC
R900948956 PVV52-1X/183-060RA15DDMC
R900978474 PVV52-1X/183-060RA15UUMC
R901425928 PVV52-1X/183-060RB15DDMC
R900949677 PVV52-1X/183-068RA15DDMC
R978918407 PVV52-1X/183-068RA15RLMC
R900941695 PVV52-1X/193-040LA15DUMC
R978015393 PVV52-1X/193-040LA15UUMC
R901422095 PVV52-1X/193-040RA15DUMC
R978906600 PVV52-1X/193-040RB15URMC
R901008153 PVV52-1X/193-040RJ15UUMC
R901084887 PVV52-1X/193-045RA15DDMC
R900746742 PVV52-1X/193-045RA15URMC
R901020329 PVV52-1X/193-045RB15LLMC
R901186723 PVV52-1X/193-045RJ15UUMC
R900936930 PVV52-1X/193-055RA15DDMC
R900939702 PVV52-1X/193-055RA15UUMC
R978907452 PVV52-1X/193-055RB15UUMC
R900942277 PVV52-1X/193-060RA15UUMC
R901271001 PVV52-1X/193-060RB15DDMC
R901442412 PVV52-1X/193-060RB15UUMC
R901080473 PVV52-1X/193-068LA15UUMC
R978905697 PVV52-1X/193-068RA15DDMC
R978933903 PVV52-1X/193-068RA15LLMC
R978916327 PVV52-1X/193-068RA15RLMC
R901439714 PVV52-1X/193-068RA15RUMC
R900937335 PVV52-1X/193-068RA15UUMC
R900718799 PVV52-1X/193-068RA15UUVC
R900945226 PVV52-1X/193-068RB15DDMC
R978919380 PVV52-1X/193-068RB15LLMC
R987380316 PVV52-1X/193-068RB15UDMCSO47-868
R900939522 PVV52-1X/193-068RB15URMC
R900738502 PVV52-1X/193-068RJ15DDMC
R901165837 PVV52-1X/193-068RJ15DLMC
R987107378 PVV52-1X/193-068RJ15UUMC
R978904787 PVV54-1X/139-069LA15DDMC
R900945228 PVV54-1X/139-069RA15DDMC
R900618320 PVV54-1X/139-069RA15UUMC
R900949419 PVV54-1X/139-069RB15DDMC
R901429039 PVV54-1X/139-069RJ15RRVC
R978911665 PVV54-1X/139-082LA15UUMC
R900941961 PVV54-1X/139-082RA15UUMC
R900949510 PVV54-1X/139-082RB15DDMC
R901405674 PVV54-1X/139-082RB15UUMC
R900706738 PVV54-1X/139-082RJ15UUMC
R901078701 PVV54-1X/139-098LB15UUMC
R978913193 PVV54-1X/139-098RA15DUMC
R978907847 PVV54-1X/139-098RA15RRMC
R901085403 PVV54-1X/139-098RB15DDMC
R901208813 PVV54-1X/139-098RB15LLMC
R900939497 PVV54-1X/139-098RB15UUMC
R987117539 PVV54-1X/139-098RJ15UUMC
R901400184 PVV54-1X/139-113LA15DUMC
R901083429 PVV54-1X/139-113LB15DDMC
葉片泵
雙作泵工作原理:它由定子、轉子、葉片和配油盤等組成。定子內壁近似橢圓形。葉片安裝在轉子徑向槽內并可沿槽滑動,轉子與定子同心安裝。當轉子轉動時,葉片在離心力的作用下壓向定子內表面，并隨定子內表面曲線的變化而被迫在轉子槽內往復滑動，相鄰兩葉片間的密封工作腔就發(fā)生增大和縮小的變化。葉片由小半徑圓弧向大半徑圓弧處滑移時,密封工作腔隨之逐漸增大形成局部真空，于是油箱中油液通過配油盤上吸油腔吸入;反之將油壓出。轉子每轉一-周 ，葉片在槽內往復滑移2次,完成2次吸油和2次壓油,并且油壓所產生的徑向力是平衡的,故稱雙作用式,也稱平衡式。

單作用式葉片泵工作原理:主要由定子、轉子、葉片和配油盤等組成。定子的內表面是一個圓柱形,轉子偏心安裝在定子中,即有一個偏心距e,葉片裝在轉子徑向滑槽中，并可在槽內徑向滑動。轉子轉動時,在離心力和葉片根部壓力油的作用下,葉片緊貼在定子內表面上,這樣相鄰兩片葉片間就形成了密封工作腔。在其中一邊,葉片逐漸伸出,密封工作腔逐漸增大，形成局部真空,形成吸油;反之，另一邊,形成壓油。轉子每轉一-周 ,葉片在滑槽內往復滑移1次，完成1次吸油1次壓油。油壓所產生的徑向力是不平衡的,故稱單作用式,也稱不平衡式葉片泵。
 

在葉片泵的產品說明書中一般都有詳細的安裝指南與注意事項。但在實際使用過程中，往往還存在這樣那樣的故障與問題，這些問題絕大多數(shù)應屬于使用不當造成的，使用不當占油泵損壞的比例高達95%以上，真正屬于產品質量問題的卻是很少。為了區(qū)別是屬于哪一類問題，正確的使用與判斷故障原因，特提供一下經驗供參考：
一、使用不當?shù)膸追N表現(xiàn)：
1.錯誤的安裝方法：
連軸器過于緊：
由于連軸器與軸配合間隙太小或無間隙，在用力敲擊時，軸承會受損，導致軸承早期損壞而影響整個泵芯的壽命。
軸頭軸向受力：
由于連軸器在安裝時沒有一定的軸向間隙，硬性安裝會使軸承與軸承擋圈損壞，嚴重時會傷及整個泵芯。
同軸度超差：
如果安裝時同軸度超過規(guī)定值，會使軸承及整個泵芯偏心而早期損壞，一般控制在≤0.1毫米左右為好
系統(tǒng)環(huán)境惡劣
油太臟：
由于油箱不是密封狀態(tài)，周圍粉塵及鐵碎屑混入油液中能使油泵早期損壞。
溫度太高：
由于未裝冷卻裝置，在機器連續(xù)使用中，油溫會不斷升高。如果油溫長期高達70°以上時，油泵壽命會大大縮短，一般在半年到一年中就會損壞(有時更短)。
.油中進水：
在有水冷卻的裝置中，由于水管的密封不好，導致水進入了油液中，使泵芯零件產生了生銹、抱死、葉片甩不出等現(xiàn)象。
二、常見故障現(xiàn)象的判斷：
1.研泵(燒盤)：
原因：油太臟，安裝不當，油中進了水，油中有鐵屑(新機時常發(fā)生)，油溫度高或零部件制造精度不夠。
2.噪音大：
特別大時：
進油口漏氣。(O型圈密封失靈，螺釘太長或法蘭太薄)
過濾器堵塞，進油口流量不夠。
有的粘度太高。(天氣太冷或者牌號不對)
裝配錯誤。(調換進出口方向位置時方法及要領不妥或密封圈未裝好及泵芯定位尚未插到后蓋的孔里去等)
比較大時：
上述情況均存在。
產品質量不好。
3.系統(tǒng)無壓力：
溢流閥失靈。(需清洗或者更換)
減壓閥失靈。(需清洗或者更換)
4.定子內曲線呈搓衣板狀的波紋時：
屬吸油不暢所至，現(xiàn)象是壓力不穩(wěn)，壓力太低，噪音偏高，有明顯的金屬敲擊聲，以及因吸入空氣被壓縮后產生的噼里啪啦聲，原因如下：
油液太粘西游不足。
吸油過濾器堵塞或太小、吸油面積不夠。
油位太低，油液不到位。
系統(tǒng)如果出現(xiàn)壓力超過額定標準時會出現(xiàn)下列情況：
殼體斷裂
定子斷裂
軸斷裂
螺絲斷裂
壽命縮短
原因：油箱油液太臟或進入鐵屑后溢流閥及其它功能閥卡死，就會導致壓力無限升高，如果系統(tǒng)的“安全保護”設計的不合理或“安保系數(shù)”太低同樣會造成瞬間壓力超標，系統(tǒng)壓力超過額定標準時，泵芯內部零件承受不了高壓從而導致了某一零件的斷裂或壽命急度的縮短。
檢查壓力的方法：在油泵的進、出油口處聯(lián)系壓力表，在正常工作情況下觀察壓力情況。
三、油泵嚴重損壞后的技術鑒定：
油研損壞后，首先要檢查外觀、內在及相關現(xiàn)象，當出現(xiàn)下列情況時，它的相應原因就可以確定：
1.軸承損壞：當泵芯嚴重損壞多處損傷，其中只要有軸承損壞時，一律視為安裝不當造成。(因為軸承損壞在先，當軸承損壞后，軸就出現(xiàn)搬動，告訴擺動下會引起其他件損壞)
2.內膽有銹，當泵芯多處嚴重損傷，其中只要有銹跡存在的。一覽表視為油液中進水造成，(因為油液正常時，永遠不會出現(xiàn)生銹現(xiàn)象)
3.油質不好：當泵芯嚴重損壞，只要油液中存在贓物、異物或油已經變黑。一律視為油臟、油質不好造成。
4.泵軸斷裂：應設法檢查斷裂位置，如果是材料或熱處理不好，他的損壞點應當時*薄弱環(huán)節(jié)，也就是*小直徑處或花鍵處，如果不是在*薄弱地點斷裂應當視為安裝不當，同軸度偏差太大造成。
5.在檢查材料時，應當對材料的成份，金相組織，硬度等進行檢查，同事還要對損壞零件的先后順序和因果關系等進行分析，*終能查出原因。
四、下面幾項屬于產品制造中的質量問題：
1、噪音偏高：只要其他原因都排除時，應屬于質量問題。
2、零件劃傷：轉子與側板的劃傷是相對稱的，對角劃傷的現(xiàn)象應是質量問題。
3、軸斷裂：當斷在*薄弱的地方，同時其他件均完好時是軸的質量問題。
4、轉子斷裂：其他件都沒斷，只有轉子斷，是質量問題。
5、葉片斷裂：其他件都沒有斷，只有葉片斷，是質量問題。
以上判斷方法與鑒別原理僅供參考，提高用戶的技術素質和減少不必要的經濟損失也是我們共同的責任和目標。


在應用的各種液壓設備中，液壓泵是關鍵性的元件，它們的性能和壽命在很大程度上決定著整個液壓系統(tǒng)的工作能力，隨著時代的發(fā)展和技術的進步，液壓泵性能越 來越完善，在各種工業(yè)設備、行走機構以及船舶和飛機上都得到了廣泛應用。因此對于葉片泵相關知識的學習和認識十分必要，特別是對于從事液壓相關方面工作的人更顯得尤為重要。
液壓泵作為現(xiàn)代液壓設備中的主要動力元件，它決定著整個液壓系統(tǒng)的工 作能力。在液壓系統(tǒng)中，液壓泵的功能主要是將電動機及內燃機等原動機的機械能轉換 成液體的壓力能，向系統(tǒng)提供壓力油并驅動系統(tǒng)工作。 
在液壓傳動與控制中使用*多 的液壓泵主要有齒輪式、葉片式和柱塞式三大類型。其中葉片泵是在近代液壓技術發(fā)展早期實用的一種液壓泵。 
葉片泵與齒輪式、柱塞式相比，葉片泵具有尺寸小、重 量輕、流量均勻、噪聲低等突出優(yōu)點。在各類液壓泵中，葉片泵輸出單位液壓功率所需 重量幾乎是*輕的，加之結構簡單，價格比柱塞泵低，可以和齒輪泵競爭。 
定量葉片泵為雙作用葉片泵，是現(xiàn)今已經發(fā)展成熟，并在工業(yè)領域得到應用的一種液壓泵，雙作用葉片泵是一般不能變量的，且徑向力平衡的,因此工作情況較其它泵良好，被應用于液壓系統(tǒng)領域，成為液壓工業(yè)上不可或缺的關鍵性元件。
液壓葉片泵的發(fā)展史 液壓葉片泵的發(fā)展史即為葉片泵從誕生到發(fā)展的歷史，作為液壓系統(tǒng)的關鍵性動力元件，它隨著液壓系統(tǒng)的誕生而誕生，隨著液壓技術的發(fā)展而發(fā)展，并不斷完善以適應新的液壓系統(tǒng)的性能要求。 

葉片泵的分類 葉片泵又分為雙作用葉片泵和單作用葉片泵。雙作用葉片泵只能作定量泵用，單作用葉片泵可作變量泵用。 雙作用葉片泵因轉子旋轉一周，葉片在轉子葉片槽內滑動兩次，完成兩次吸油和壓油而得名。 單作用葉片泵轉子每轉一周，吸、壓油各一次，故稱為單作用。