日本NACHI 变量叶片泵
叶片泵工作原理及应用
排量与流量计算
双作用叶片泵的排量为
式中，R，r-分别为定子圆弧部分的长短半径 θ-叶片的倾角 S-叶片的厚度
排量与流量计算
双作用叶片泵的实际流量为
叶片与流量脉动关系
叶片泵流量脉动率与叶片数、叶片厚度及叶片在槽内运动的加、减速度成正比。从转子强度与降低流量脉动两方面考虑，叶片数应该越少越好。但叶片数必须同过渡曲线形状匹配，且满足密封容腔的分隔要求，一般取8-18，以12、16为最佳。
柱销叶片方式
因此，为减小定子内表面的磨损及提高工作压力，采用以下措施：
02
03
04
01
2 改善叶片受力状况
某单作用叶片泵转子外径d=80mm,定子内径D=85mm，叶片宽度B=28mm，调节变量时定子和转子之间的最小间隙为0.5mm。求
该泵排量为V1=15mL/r时的偏心量e1
该泵的最大可能排量Vmax
一、单作用叶片泵
1－压油口 2－转子 3－定子 4-叶片 5—吸油口
叶片泵的工作原理如图1所示。泵的结构包括：转子、定子、叶片、配油盘和端盖等。定子的内表面是圆柱形孔。转子和定子之间存在偏心。
图1 双作用叶片泵工作原理
1.单作用叶片泵的工作原理
1.单作用叶片泵的工作原理
图1 双作用叶片泵工作原理
双作用叶片泵的工作原理
(二)双作用叶片泵的结构特点
图3.3.4 双作用叶片泵工作原理 1－定子 2－压油口 3－转子 4-叶片 5-吸油口
（1）定子和转子是同心的
（2）转子每转一周，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
（3）泵的两个吸油区和两个压油区径向对称，作用在转子上的液压力径向平衡，所以又称作平衡式叶片泵
变量叶片泵的工作原理
变量叶片泵的工作原理
变量叶片泵是一种常用的离心泵，它通过旋转叶片产生离心力以将液体输送出去。
该泵的工作原理如下：
1. 叶片的构造：变量叶片泵由许多叶片组成，这些叶片可以根据泵的工作需求进行调整。
叶片通常是弯曲的，以便在泵转动时能够收集和排放液体。
2. 泵的结构：变量叶片泵的核心部分是转子和壳体。
转子内置在泵的壳体内，它与主轴连接并能够自由旋转。
3. 运转过程：当变量叶片泵开始运转时，转子开始以高速旋转。
液体通过进口管道进入泵的壳体内，并沿着壳体的内表面向外流动。
4. 离心力的产生：当液体流经转子时，叶片会将液体加速，并形成离心力。
这个离心力将液体推向靠近出口处的泵壳。
5. 出口压力的增加：随着液体流向出口，泵壳逐渐变窄，这会导致压力的增加。
由于离心力的作用，液体在出口处的压力将进一步增加。
6. 液体排放：当液体达到一定压力时，它将被推向出口管道并被输送到目标位置。
同时，液体进口处再次进入泵内进行循环，泵就会持续工作。
总而言之，变量叶片泵通过旋转叶片产生离心力，使液体在泵
内流动并增加压力，从而实现液体的输送。
通过调整叶片和泵的参数，可以根据需要调整流量和压力。
川崎泵的原理与调整
之青柳念文创作现在的挖掘机多为斜盘式变量双液压泵，所谓变量泵就是泵的排量可以改变，它是通过改变斜盘的摆角来改变柱塞的行程从而实现泵排出油液容积的变更.变量泵的优点是在调节范围之内，可以充分操纵发动机的功率，达到高效节能的效果，但其布局和制造工艺复杂，成本高，装置调试比较负责.依照变量方式可分为手动变量、电子油流变量、负压油流变量、压力抵偿变量、恒压变量、液压变量等多种方式.现在的挖掘机多采取川崎交叉恒功率调节系统，多为反向流节制，功率节制，工作形式节制（电磁比例减压阀节制）这三种节制方式复合节制.下载 (44.84 KB)前天21:51调节器代码对应的调节方式下载 (64.54 KB)前天21:51调节器外部布局各种节制都是通过调节伺服活塞来节制斜盘角度，达到调节液压泵流量的效果.大家知道在压强相等的情况下，受力面积的受到的作用力就大.下载 (25.52 KB)前天21:52调节器就是运用这一原理，通过节制伺服活塞的大小头与液压泵出油口的联通关闭来节制伺服活塞的行程.在伺服活塞大小头腔都有限位螺丝，所以通过调节限位螺丝可以调节伺服活塞最大或最小行程，达到调节液压泵的最大流量或者最小流量的效果.下载 (55.63 KB)前天21:51向内调整限制伺服活塞最大和最小行程及限制最大流量和最小流量要谈谈反向流节制，就必须要弄大白反向流是如何发生的.在主控阀中有一条中心油道，当主控阀各阀芯处于中位时（及手柄无操纵时）或者阀芯微动时（及手柄微操纵时）液压泵的液压油通过中心油道到达主控阀底部溢流阀，颠末底部溢流阀的增压发生方向流（注当发动机启动后无动作时液压回路是直通油箱，液压系统无压力）.下载 (57.08 KB)昨天00:30所以方向流节制的功能是减少操纵节制阀在中位时，泵的流量，使泵流量随司机操纵所属流质变更，改善调速性能，防止了无用能耗.大家注意方向流节制并不是交叉节制，一个泵对应一个主控阀块（一般主控阀都为双阀块）.如果单边手柄动作速度很慢特别是回转和铲斗奇慢，复合动作正常一般就是反向流油管装置反了.下载 (34.66 KB)前天21:52反向流的调整方法：就上图而言，松开801的螺帽，调整924，松则流量减小，对应下图的蓝色曲线，挖掘机速度减慢.紧则流量增大，对应下图的红色曲线，挖掘机速度增快.下载 (14.61 KB)前天21:52调整部位见下图下载 (40.24 KB)前天22:48功率节制其实就是让液压泵和发动机的功率匹配，防止液压泵功率过大导致发动机憋车.简单的说稳定工作后油门固定时发动机的功率是一定的，液压泵的功率则是由机器负荷决议的，液压泵功率等于工作压力乘以液压泵流量，当机器有负荷时液压压力增大，增大到定值时，调节器就要节制液压泵流量减小，以防止发动机憋车熄火.要注意的是不是所有的憋车都是因为功率节制出问题，如果发动机功率低于正常值也会导致憋车.例如，憋车时发动机无黑烟，一般就是柴油泵磨损造成的发动机功率过低.下载 (49.49 KB)前天21:52功率节制调节方法：就上图而言，松630螺帽，调整628为外弹簧调整，重点是对机器低负荷时的调节，松则液压泵功率减小对应下图蓝色曲线，紧则液压泵功率增大对应下图红色曲线.下载 (17.48 KB)前天21:52松801螺帽，调整925为内弹簧调整，重点是对机器高负荷时的调节，松则液压泵功率减小对应下图蓝色曲线，紧则液压泵功率增大对应下图红色曲线.下载 (17.52 KB)前天21:52简单的说就是严重憋车时（小动作时憋车）松外弹簧，轻微憋车时（大动作时憋车）松内弹簧.注意其实调整表里弹簧对整条曲线都有影响，但在这里为了跟容易懂得在上面两个曲线关系图的未体现.实际调整部位见下图下载 (42.79 KB)前天23:17工作形式节制（比例电磁阀节制）则是对挖掘机特殊工作形式的节制，包含各种形式如整平，装车等等，是挖掘机电脑根据形式选择节制开关的指令，对挖掘机上的各种功能电磁阀（例如动臂优先，回转优先等）停止节制，以节制主控阀上的功能阀，达到形式节制的效果，使挖掘机的协调性适应各种特殊工作形式.在这里只浅浅的谈一下比例电磁阀，要知道为什么需要比例电磁阀，就首先大白液压伺服节制有一定的延时性（见下图），而电控调节则十分迅速可以补偿调节器的设计缺陷.下载 (36.99 KB)前天23:50举个例子来讲明比例电磁的工作原理.例如：挖掘机在突然遇到高负荷（比方一开端挖淤泥突然挖到一块巨石）时，调节器没来得及节制液压泵流量疾速减小，就有能够使挖掘机憋熄火.出现熄火征兆就是发动机实际转速降低，电脑通过发动机转速传感器感知发动机转速低于油门旋钮的指定转速时，当即节制比例电磁阀打开操纵先导压力疾速降低液压泵流量，包管发动机不会憋车熄火.简单断定比例电磁阀是否烧毁在做溢活动作时用铁质工具接近电磁阀看是否有磁力发生，如果电磁阀烧毁，应急处理可以将电磁阀阀芯先内调死.注意要检查比例电磁阀插头是否松动，有时插头松动或者线路接触不良会出现液压泵流量忽大忽小，造成整车动作液压抖动，特别是抬大臂比较严重.液压节制原理图如下，下载 (42.75 KB)昨天00:14实际位置如下，下载 (46.12 KB)昨天00:18。
日本nachi不二越pzs系列变量柱塞泵参数
日本NACHI不二越PZS系列变量柱塞泵参数不二越PZS系列变量柱塞泵参数：日本NACHI不二越PZS系列变量柱塞泵的特点：低噪音、低脉冲、高响应、节能源、耐久性、多组合；适用行业：一般液压产业机械、工作母机液压站、铝合金压铸机、注塑射出成型机、粉末冶金成型机、建筑及行走机械等。
NACHI日本不二越变量柱塞泵品牌:NACHI日本不二越，型号:PVS-1B-16N2-（*）-12，工作压力:25，柱塞直径:190.5（mm），重量:10.5（kg），转速:1000-1800（r/m），柱塞数:单及，材质:铸钢，驱动方式:电动，用途:管道泵，类型:变量柱塞泵，泵轴位置:卧式，叶轮数目:多级，叶轮结构:封闭式叶轮，流量:16（m3/h）日本不二越变量柱塞泵常见型号有:PVS-0B-8N0-30PVS-0B-8N2-30PVS-0B-8N1-30PVS-0B-8N3-30PVS-1B-16N0-12PVS-1B-16N1-12PVS-1 B-16N2-12PVS-1B-16N3-12PVS-1B-22N0-12PVS-1B-22N1-12PVS-1B-22N2-12PVS-1B-22N3-12PVS-2B-35 N1-12PVS-2B-35N2-12PVS-2B-35N0-12PVS-2B-35N3-12PVS-2B-45N0-12PVS-2B-45N1-12PVS-2B-45N2-1 2PVS-2B-45N3-20PVS-1B-16N1-Z-12PVS-1B-16N2-Z-12PVS-1B-16N3-Z-12PVS-1B-22N1-Z-12PVS-1B-22N 2-Z-12PVS-1B-22N3-Z-12PVS-2B-35N1-Z-12PVS-2B-35N2-Z-12PVS-2B-35N3-Z-12PVS-2B-45N1-Z-12PVS-2B-45N2-Z-12PVS-2B-45N3-Z-20PVS-1B-16N3Q1-12PVS-1B-16N2Q1-12PVS-1B-16N1Q0-12PVS-1B- UVN系列变量叶片泵型号示例：UVN-1A-0A2-0.7-4-11、UVN-1A-0A2-1.5-4-11UVN-1A-0A3-0.7-4-11、UVN-1A-0A3-1.5-4-11UVN-1A-0A4-0.7-4-11、UVN-1A-0A4-1.5-4-11UVN-1A-1A2-1.5-4-11、UVN-1A-1A2-2.2-4-11UVN-1A-1A3-1.5-4-11、UVN-1A-1A3-2.2-4-11UVN-1A-1A4-1.5-4-11、UVN-1A-1A4-2.2-4/Information/2013/6/24/2094592.html22N1Q1-12PVS-1B-22N2Q1-12PVS-1B-22N3Q1-12PVS-2B -35N3Q1-12PVS-2B-35N2Q1-12PVS-2B-35N2Q0-12PVS-2B-45N3Q1-20PVS-2B-45N2Q1-12PVS-2B-45N1 Q0-12PZS-3B-70N1-10PZS-3B-70N3-10PZS-3B-70N4-10PZS-4B-100N1-10PZS-4B-100N3-10PZS-4B-100N 4-10PZS-5B-130N1-10PZS-5B-130N3-10PZS-5B-130N4-10PZS-6B-180N1-10PZS-6B-180N3-10PZS-6B-180 N4-10PZS-6B-220N1-10PZS-6B-220N3-10PZS-6B-220N4-10PZS-4B-100N4Q3-10PZS-3B-70N1Q1-10PZS-3B-70N4Q4-10PZS-4B-100N3Q1-10PZS-5B-130N4Q4-10PZS-5B-130N3Q1-10PZS-5B-130N1Q1-10PZS-6B -180R4S1-10PZS-6B-220W4S1-10PZS-4B-100W3R1-10PZ-2B-3.5-35E1A-11PZ-2B-5-35E2A-11PZ-2B-6.5-3 5E3A-11PZ-2B-8-45E1A-11PZ-2B-8-45E2A-11PZ-3B-10-70E1A-11PZ-3B-13-70E2A-11PZ-3B-16-70E3A-11P Z-4B-20-100E1A-11PZ-4B-25-100E2A-11PZ-4B-32-100E3A-11PZ-5B-40-130E1A-11PZ-5B-50-130E2A-11PZ-5B-64-130E3A-11PZ-6B-80-180E1A-20PZ-6B-100-180E2A-20PZ-6B-125-180E3A-20PZ-6B-80-220E1A-20P Z-6B-100-220E2A-20PZ-6B-125-220E3A-20VDR设计系列变量叶片泵1，节能，经济型泵。
日本不二越柱塞泵-正品NACHI办事处
日本不二越柱塞泵-正品NACHI办事处日本NACHI不二越柱塞泵分为轴向柱塞泵和径向柱塞泵两种代表性的结构形式；由于径向柱塞泵属于一种新型的技术含量比较高的高效泵，随着不断加快，径向柱塞泵必然会成为柱塞泵应用领域的重要组成部分．日本NACHI不二越斜盘式轴向柱塞泵一般采用缸体转动、端面配流的形式。
缸体端面上镶有一块由双金属板与钢配油盘组成的摩擦副，而且大多数是采用平面配流的方法，所以维修比较方便。
配油盘是轴向柱塞泵的关键部件之一，泵工作时，一方面工作腔的高压油把缸体推向配油盘，另一方面配油盘和缸体间的油膜压力形成对缸体的液压反推力使缸体背离配油盘。
缸体对配油盘的设计液压压紧力Fn略大于配油盘对缸体的液压反推力Ff，即Fn/Ff=1.05~1.1，使泵工作正常并保持较高的容积效率日本不二越油泵特点:日本不二越柱塞泵:日本不二越柱塞泵是一种变量的轴向柱塞泵，具有大幅度降低损耗，节省功率的特点：稳定出油量，可以减少流量的损耗，降低动力损失；运转平稳，低噪音：在泵芯的各个配件上采取了消声结构，稳定动作特性，使运转时噪音减小；可靠性高，寿命长。
如PVS-0B-8N1-30、PVS-1B-16/22N2-12、PVS-2B-35/45N2-12这类油泵的压力可达到25Mpa,是一种标准型的压力补偿型活塞泵，其中PVS-1/2B有压力补偿型P，双压双流量控制性NQ，电磁阀切断控制型RS，双压控制性WS等各种不同控制方式的油泵。
如PZS-3B/4B/5B/6B-70/100/130/180/220N1/3/4-10等各种不同流量的压力补偿型柱塞泵，压力最高可达到28Mpa。
其中PZS-3/4/5/6B也有双压力WS，电磁切断控制型RS，双压双流量NQ这四种方式之分。
如PZ-2B/3B/4B/5B/6B这一系列的油泵是负荷感应EA型变量柱塞泵，这类油泵是以变量柱塞泵的技术为基础，采用静压轴承结构等实现了超静音的液压组合系统。
NACHI 变压式油吸引力泵选择表说明书
A 2Hydraulic Pump Selection TableANACHI Hydraulic Pumps.24Pump TypeNameType Classifi-cationRated PressurepsiDisplacement cu in / revPageV a r i a b l e p i s t o n p u m p sV a r i a b l e d i s c h a r g e v o l u m e v a n e p u m p sPVS series variable piston pump PVS 3000300030003000101510152030101587087020301015116036253045Uni-pumpUPV PZS series variable piston pumpPZS PZ load-sensitive variable piston pumpPZ VDS series compact variable vane pump VDS Uni-pumpUSV VDR13 design series variable vane pump VDR Uni-pumpUVD VDR22 design series variable vane pump VDR Uni-pumpUVD VDC series high-pressure variable vane pump VDC Uni-pumpUVN series variable vane uni-pump UVN UVC A-3A-19A-22A-35B-1B-4B-6B-12B-15B-22B-25B-37B-39C-1C-14IPH series IP pump IPH IPH series double IP pumpIPH.12 .30 .61 1.2 3.0 6.1 12.2 30.5 61.0 122.0 305.21.212.742.742.56 13.413.4.48.18 .5.18 .5.24 1.69.3 2.7.3.3 5.421.592.0.21 7.68.43 15.36.49.3 2.01.69Design No. 30 is applied on PVS-0B to make the pump more compact and lighter, and reduce noise.Silent Type That DemonstratesA Piston Pumps• Caution at Startup NACHI-proprietaryBefore you start pump operation, fill thepump body with clean hydraulic operatingfluid via the lubrication port.An unload is required when the motor isstarted under condition WYE.Delta Start.Consult your agent regarding the circuit.Make sure that the pump operates in thedirection of rotation the same as thatindicated by the arrow on the pump body.Air entering the pump or pipes maycause noise or vibration. At startup, setthe pump discharge side to a no-loadstate, and operate the pump in theinching mode to release any air in thepump or pipes.Provide an air bleed valve in circuitswhere it is difficult to release air atstartup.• How to Set Pressure and DischargeVolumeThe default pump discharge volume isset to "maximum" and default dischargepressure is set to "minimum". Changethe discharge volume and dischargepressure settings according to yourparticular operating conditions.Model No.Injection amount cu inPVS-0B-813PVS-1B-16, 2218PVS-2B-35, 453912345CWCCWPressureadjustment rangeDischargevolumeDischargevolumeDischargevolumeadjustmentrangeCWCCWPressurePressure[Pressure adjustment]Turning the pressureadjusting screw CWincreases the pressure.[Discharge volumeadjustment]Turning the flowrate adjusting screwCW decreases thedischarge volume.Note:between flow rate adjustment length l andpump capacity q, see the tables providedin the installation dimension drawings foreach of the pumps.finished adjustments.Note:• Variable control mechanismStandard TypeN* Pressure compensation type(manual mode)Option typeP* Pressure compensation type(remote control mode)R Load SenseN*Q* 2-pressure, 2-flow rate controlSolenoid cutoff control2-pressure control2-pressure, 2-flow ratecontrol w/ solenoid cutoff2-cutoff control• * : Pressure adjustment range0 : 286 - 5001 : 286 - 10002 : 429 - 20003 : 429 - 3000• : Applicable to solenoid specifications A, SA : SA-G01S : SS-G011 : 100V 50/60Hz2 : 200V 50/60Hz3 : DC12V4 : DC24VR*W*RQ*C*ASASASAS*******Design No. 30: PVS-0B12: PVS-1B, PVS-2B (BSPT piping)E13: PVS-1B, PVS-2B (SAE piping)E20: PVS-2B -45N3Explanation of Model No.122N16B1––––PVS*()Auxiliary Symbol None: Side port typeZ: Axial port typePressure Adjustment Range [Note] ReferenceVariable Control Mechanism [Note] ReferenceMax. Pump Capacity (cm³/rev)Nominal 8, 16, 22, 35, 45Mounting MethodB: Mounting flange type A: Mounting foot typePump Size 0,1,2PVS Series Variable Piston Pumpt available for the PVS-1B- -Z and PVS-2B- -Z.16223545N2: 429-2000psiDischargevolumeDischargevolumeDischargevolumeDischargevolumeDischargevolumeDischargevolumeDischargevolume[Example 1]N*: Pressurecompensation type(manual mode)PVS-1B-16N2P2: 429-2000psi[Example 2]P*: Pressurecompensation type(remote control mode)PVS-1B-16P2P2: 429-2000psisol"ON"[Example 4]R*S*: Solenoidcutoff controlPVS-1B-16R2S2Solenoid specifications120V 50/60HzSS-G01W2: 429-2000psisol"ON"[Example 5]W*S*: 2-pressure controlPVS-1B-16W2S1Solenoid specifications120V 50/60HzSS-G01N2: 429-2000psiQ1: 290-1000psiDischarge pressure[Example 3]N*Q*: 2-pressure,2-flow rate controlPVS-1B-16N2Q1R2: 429-2000psisol"ON"Discharge pressureDischarge pressureDischarge pressureDischarge pressureDischarge pressure[Example 6]RQ*S*: 2-pressure,2-flow rate control w/solenoid cutoffPVS-1B-16RQ2S1Solenoid specifications120V 50/60HzSS-G01C2: 429-2000psisol"ON"Discharge pressure[Example 7]C*S*:2-cutoff controlPVS-1B-16C2S2Solenoid specifications120V 50/60HzSS-G01A 4Variable Control MechanismsAPiston PumpsS t a n d a r d t y p eO p t i o n t y p eSymbolExternal ViewCharacteristics Hydraulic CircuitExplanationNNACHIDrain portPressureadjusting screwFlow rateadjusting screwD i s c h a r g e v o l u m eDischarge pressureM **Discharge portSuction portDrain portPNACHIDrain port Flow rateadjusting screwPilot portDifferential pressureadjusting screw(adjustment forbidden)D i s c h a r g e v o l u m eDischarge pressureM **PilotportDischarge portSuction port Drain portNQNACHIP1 pressure adjusting screwq1 flow rate adjusting screwq2 flow rate adjusting screwP2 pressure adjusting screwDrain port q 2q 1P1P2D i s c h a r g e v o l u m eDischarge pressureM N **Discharge portSuction port Drain portRS (RA)SOL bNACHIDrain portPressureadjusting screw (at solenoid ON)Flow rateadjusting screwSOL "OFF"SOL "ON"D i s c h a r g e v o l u m eDischarge pressureM **Discharge portSuction port Drain port WS (WA)NACHIDrain portPressureadjusting screw (at solenoid OFF)Flow rateadjusting screwPressureadjusting screw (at solenoid ON)SOL bSOL "OFF"P1P2SOL "ON"D i s c h a r g e v o l u m eDischarge pressureM **Discharge portSuction port Drain portRQS (RQA)SOL bNACHIDrain portP1 pressure adjusting screwP2 pressure adjusting screw (at solenoid ON)q1 flow rate adjusting screwq2 flow rate adjusting screw P2q1q2P1SOL OFFSOL ON D i s c h a r g e v o l u m eDischarge pressure **0MNDischarge portSuction port DrainportCS (CA)NACHIDrain port P2 pressure adjusting screwq1 flow rate adjusting screwq2 flow rate adjusting screwDifferential pressure adjusting screw(adjustment forbidden)q1q2P1P2SOL OFF SOL OND i s c h a r g e v o l u m eDischarge pressure**M N Discharge portSuction port Drain port Note 1:Many other variable control mechanism are also available in addition to those in the above table. Please consult your agent for details.Note 2: We recommend ZR-T02-*-5895* as the remote control valve. For details, consult your agent. Prevent the pipe volume up to the remote control valve from falling below 10 cu in.Pressure compensation type (manual system)When the discharge pressure reaches the preset volume set by the pressure compen-sator, the discharge volume is automatically reduced to hold the pressure at the set pressure.Pressure compensation type (remote control mode)This mode demonstrates the same characteristics as the manual mode.The discharge pressure can be adjusted by external pilot pressure. The discharge volume can be adjusted manually.2-pressure, 2-flow rate control typeThe discharge volume changes in two stages by the pump's built-in sequence valve. This allows conventional high/ low pressure control to beperformed on a single pump unit, and save energy in the hydraulic circuit.Solenoid cutoff control type A solenoid valve for unload is integrated into the pressure compensation type to minimize energy loss when pump output is not required. Only a slight amount of heat is generated.2-pressure control typeTwo pressure compensation types can be obtained by switching the solenoid valve ON/OFF. Two types of output control are possible with the actuator set to a constant speed.2-pressure, 2-flow rate control type w/ solenoid cutoffThe discharge volume can be changed in two stages by the sequencer valve and solenoid valve for unload mounted on the pump, and unloading is possible when pressure oil is not required.2-cutoff control typeTwo types of pressure - flow rate characteristics can be obtained by the solenoid valve and cylinder mounted on the pump.NACHIDrain port Flow rateadjusting screwLoad sense Differential pressureadjusting screw (adjustment forbidden)D i s c h a r g e v o l u m eDischarge pressureM **PilotportDischarge portSuction port DrainportLoad sense typeThis mode demonstrates the same characteristics as the manual mode.The discharge pressure can be adjusted by external pilot pressure. The discharge volume can be adjusted manually.Note 2)RA 5A Piston PumpsPressure Compensation Type Manual Mode: Standard Type2 Bolt SAE A MountPVS-0B-8N*-30Installation Dimension DrawingCross-Sectional DrawingPressure Compensation TypeSuction portSAE 3/4Lubrication port29491147127773110130R46106.453.2Discharge portSAE 1/219.521.282.6–.36–.71–0.01214278525.442.5Key width 4.76Pressure compensatorMINDrain portSAE 3/8Lock nutDischarge portLock nut164.5(MAX)(flow rateadjustmentlength)1861449.5214( MAX)510Flow rateadjusting screwPressureadjusting screwSAE 1/211149.5127.5.39.61.48.36.24.12.18.59.19P VS-0B-8N*-30cuin/revPVS-0B-8N*-30Pumpcapacityqcuin/revFlow rate adjustment length in.Set a flow rate adjustment length withinthe above range. Oil will leak if the pumpis operated below the adjustment rangelower limit.Part No.Part Name Part No.Part Name Part No.Part Name1234567891011121314BodyCaseShaftCylinder barrelValve platePistonShoeShoe holderBarrel holderSwash plateThrust bushSpring holderGasketSpring C1516171819202122232425262728Spring SControl pistonGuide pinParallel keyRetainerNeedleBall bearingNeedle bearingOil sealSnap ringSnap ringSnap ringO-ringO-ring293031323334353637383940Parallel pinSpring pinHexagon socket head boltCross-recessed countersunkhead screwHexagon socket setscrewHexagon nutHexagon plugMetal plugNameplateLubrication port plateCAUTION plateRivetParts marked by an asterisk "*"are not available on the market.Consult your agent.PartNo.Part Name Q'tyPVS-0B-8Size Remarks13Packing1PSC46-100000 3 Bond23Oil seal1TCV-254511N.O.K27O-ring11B-P9JIS B 240128O-ring11B-P11JIS B 2401*Typical characteristics at hydraulic operating fluid kinematic viscosity of 32 centistokes Discharge volume QVolume efficiency vOverall efficiencyInput Lin–1–1–1–12000100050604.03.73.43.285.42.7708090100Discharge pressure P psiGeneral Performance3000Input LinDrai n vo lum e D RDis ch ar ge vo lum e Q–1–1–1–10.51.16423.73.2Discharge pressure P psiPressure - DischargeVolume Characteristics–1–1–1–12.72.01.30.7Full cutoff pressure psiAxial Input at Full Cutoff50608070Discharge pressure P psiAt full cutoffMeasurement position: 1m rear of pumpNoise CharacteristicsQ=3.8r/minQ=3.2r/minQ=2.6r/minQ=2.1r/minQ=1.6r/min1.32.79.48.06.75.44.0Discharge pressure P psiAxial Input–1Efficiency,v%DischargevolumeQgpmInputLinhpInputLinhpDischargevolumeQgpmDrainvolumeDRgpmAxialInputhpAxialinputatfullcutoffhpNoiseleveldB(A)200010003000200010003000200010003000200010003000Seal Kit Part No. PSS-100000A 6APiston PumpsInstallation Dimension DrawingPVS-1B-16N*-(Z)-E1322SAE A Mount (side port type)(Axial Port Type)Parts marked by an asterisk "*" are not available on the market.Consult your agent.List of Sealing Parts (Kit Model Number PSS-101000-2A)Part No.Part Name Part No.Part Name 123456789101112131415161718192021Body Case ShaftCylinder barrel Valve plate Piston ShoeShoe holder Barrel holder Swash plate Thrust bush Seal holder Gasket Spring C Spring SControl piston Needle Key NutRetainer Plug2223242526272829303132333435363738394041Ball bearing Needle bearing Oil seal Snap ring Snap ring Snap ring O-ring O-ring O-ring PinHexagon socket head bolt Cross-recessed coun-tersunk head screw Hexagon socket set screw Metal plug Nameplate CAUTION plate Spring holderLubrication port plate Rivet Guide pinPart No.Name Q'ty Size Remarks 13Gasket 1PS46-101000Nihon Gasket24Oil seal 1TCN-254511N.O.K 28O-ring 11B-G55JIS B 240129O-ring 11B-P9JIS B 240130O-ring11B-P14JIS B 2401Lubrication portDischarge port Code 61 - 3/4Suction port Code 61 - 1106.4130738842124NACHI4-M10X162412.5158.522±0.2181.555237(MAX)Flow rateadjustment length 19.0521.2Flow rateadjusting screw82.6––Key width4.760–0.012525.4649.543–0.036–0.071(MIN)Drain port SAE 3/877.523rPressureadjusting screw NACHISAE 3/84.760–0.0124-M10X164-M10X16Code 61 - 3/4Code 61 - 1525.412.5649.577.555237(MAX)42.523(MIN)183.5106.41305273884282137303011052.4±0.247.5±0.2120r19.0521.282.6–0.036–0.07122±0.226.2±0.2(suction port 24 mm dia.)(discharge port 24 mm dia.)Flow rateadjusting screwFlow rateadjustment length Drain port Pressureadjusting screwKey widthPressure compensatorLubrication port.19 .39 .59.611.2Flow rate adjustment length l in1.8.781.01.3.42.30Flow rate adjustment rangeFlow rate adjustment rangeRelationship between flow rate adjustment length (l ) and pump capacity (q)P u m p c a p a c i t y q c u i n /r e v*Cross-Sectional DrawingSet a flow rate adjustment length within the above range. Oil will leak if the pump is operated below the adjustment range lower limit.A 7200010003000200010003000A 8APiston PumpsPerformance CurvesTypical characteristics at hydraulic operating fluid kinematic viscosity of 32 centistokesPVS-1B-16N*-(Z)-E13Discharge volume QDischarge volume QVolume efficiency vOverall efficiencyInput Lin–1–1–1–12000100005040607.97.416.110.713.45.32.68.00708090100Discharge pressure P psi General Performance3000Input LinDra in vo lum e D R–1–1–1–10.51.116.110.75.307.47.9Discharge pressure P psi Pressure - Discharge Volume Characteristics–1–1–1–12.72.01.30.70Full cutoff pressure psi Axial Input at Full Cutoff0608070Discharge pressure P psiAt full cutoffFull cutoff pressure Full cutoff pressure 1000 psi 500 psi T ank capacity 10 galMeasurement position: 1m rear of pumpRevolution speed 1800 min –1Noise CharacteristicsQ=7.9gpm Q=6.6gpm Q=5.3gpm Q=3.9gpm Q=2.6gpm018.716.113.410.78.05.32.6Discharge pressure P psiAxial Input6401357232866850Time HrOil T emperature Rise CharacteristicsPVS-1B-16N1-128E f f i c i e n c y ,v %D i s c h a r g e v o l u m e Q g p m I n p u t L i n h pI n p u t L i n h pA x i a l i n p u t h p D r a i n v o l u m e D R g p mD i s c h a r g e v o l u m e Q g p mA x i a l i n p u t a t f u l l c u t o f f h pN o i s e l e v e l d B (A )T e m p e r a t u r e d i f f e r e n c e º F Performance CurvesFull cutoff pressure Full cutoff pressure 1000 psi 500 psi Tank capacity 16 galRevolution speed 1800 min –164013572Time Hr8T e m p e r a t u r e d i f f e r e n c e º FCurves Typical characteristics at hydraulic operating fluid kinematic viscosity of 32 centistokesPVS-1B-22N*-(Z)-E13005.410.716.1Input Lin605070809010010.69.37.96.621.419.013.48.02.7Discharge pressure P psiOverall efficiency1800min –11500min –1General PerformanceDischarge volume QD i s c h a r g e v o l u m e Q g p mI n p u t L i n h pE f f i c i e n c y ,v %Volume efficiency v5.310.716.1Input Lin10.67.921.41800min –11500min –1Pressure - Flow Rate Characteristics0.51.1Drain volume DRDischarge pressure P psiD i s c h a r g e v o l u m e Q g p mD r a i n v o l u m e D R g p mDischarge volume QI n p u t L i n h p2.700.71.32.0Axial input at full cutoff hpDischarge pressure P psi A x i a l i n p u t a t f u l l c u t o f f h p60508070Noise CharacteristicsMeasurement position: 1m rear of pumpAt full cutoff Discharge pressure P psi N o i s e l e v e l d B (A )19.005.410.716.18.02.713.421.4Axial InputQ=10.6Q=9.3Q=7.9Q=6.6Q=5.3gpm gpm gpm gpm gpmDischarge pressure P psiA x i a l i n p u t h p 20001000300020001000300032866850200010003000200010003000200010003000200010003000200010003000312D 20DA 9APiston PumpsInstallation Dimension DrawingCross-Sectional DrawingPart No.Part Name 123456789101112131415Body Case ShaftCylinder barrel Valve plate Piston ShoeShoe holder Barrel holder Swash plate Thrust bush Seal holder Gasket Spring C Spring SPart No.Part Name 161718192021222324252627282930Control piston Needle Key NutRetainer PlugBall bearing Needle bearing Oil seal Snap ring Snap ring Snap ring O-ring O-ring O-ringPart No.Part Name 31323334353637383940414243Backup ring PinHexagon socket head boltCross-recessed coun-tersunk head screw Flow rate adjust-ing screw Metal plug Nameplate CAUTION plate Spring holder GuideLubrication port plate Orifice RivetList of Sealing Parts (Kit Model Number PSS-102000-2A)Part No.Part Name 12345678910111213141516Body Case ShaftCylinder barrel Valve plate Piston ShoeShoe holder Barrel holder Swash plate Thrust bush Seal holder Gasket Spring C Spring SControl pistonPart No.Part Name 17181920212223242526272829303132Needle Key NutRetainer PlugRoller bearing Needle bearing Oil seal Snap ring Snap ring Snap ring O-ring O-ring O-ringBackup ring PinList of Sealing Parts (Kit Model Number PSBS-102220)Part No.Part Name 333435363738394041424344454647Hexagon socket head boltCross-recessed coun-tersunk head screw Flow rate adjust-ing screw Metal plug Nameplate CAUTION plate Spring holder GuideLubrication port plate Orifice Rivet Orifice Pin O-ring PlugParts marked by an asterisk "*" are not available on the market. Consult your agent.Part No.Part Name Q'ty PVS-2B-35/45Size Remarks 13Gasket 1PS46-102000-0A Nihon Gasket24Oil seal 1TCN-305011Z N.O.K 28O-ring 11B-G70JIS B 240129O-ring 11B-P14JIS B 240130O-ring 11B-P11JIS B 240131Backup ring1T2-P11JIS B 2407Part No.Part Name Q'ty PVS-2B-45N3Size Remarks 13Gasket 1PS46-102000-0A Nihon Gasket 24Oil seal 1TCN-305011Z N.O.K 28O-ring 11B-G70JIS B 240129O-ring 11B-P14JIS B 240130O-ring 11B-P11JIS B 240146O-ring 21B-P5JIS B 240131Backup ring1T2-P11JIS B 2407**Parts marked by an asterisk "*" are not available on the market. Consult your agent.**PVS-2B-35N*-(Z)-E13SAE B Mount45PVS-2B-45N3-(Z)-E13PVS-2B-35N*-(Z)-E1345SAE B Mount (side port type)(axial port type)NACHIPressure adjusting screwLock nut101.653338606192.5152888.5317.5 (MAX)222.569.560 MINrDrain port SAE 1/2Key width 6.3+0.015–0.0104-M10X1626.2±0.2–0.051Flow rateadjustment length Flow rate adjusting screw.79.61Flow rate adjustment length l in1.221.832.443.052.752.14.67 .49.98 1.18 1.38Flow rate adjustment rangeFlow rate adjustment range Relationship between flow rate adjustmentlength (l) and pump capacity (q)P u m p c a p a c i t y q c u i n /r e vNACHIDrain port Lock nut688.569.56060(MIN)SAE 1/2257.5 (MAX)rPressureadjusting screwFlow rateadjustment length Flow rate adjusting screwKey width534386.3–0.010101.6+0.0150–0.05115220.5Set a flow rate adjustment length within the above range. Oil will leak if the pump is operated below the adjustment range lower limit.Pressure compensatorLubrication port1461726513453104172A B cm 3/rev 0.9870.9863545Pressure Range DesignNo.0 to 30 to 20.9990.9980.8750.8740.9990.998312D 20DA B cm 3/rev 0.9870.9863545Pressure RangeDesign No.0 to 30 to 20.9990.9980.8750.8740.9990.998Pressure compensatorLubrication portSuction portDischarge port1441461726545104172-1-11/4-14-M10X1612830.2±0.2373714026.2±0.24-M10X16-11/4(suction port 28 mm dia.)(discharge port 28 mm dia.)Discharge volume QVolume efficiency Overall efficiencyA 10APiston PumpsPerformance CurvesTypical characteristics at hydraulic operating fluid kinematic viscosity of 32 centistokesPVS-2B-35N*-(Z)-E13Performance CurvesPVS-2B-45N*-(Z)-E13Typical characteristics at hydraulic operating fluid kinematic viscosity of 32 centistokesVolume efficiency vOverall efficiencyInput Lin–1–1–1–10 1000 2000 3000506017.515.914.513.240.226.813.4708090100Discharge pressure P psiGeneral PerformanceInput Lin.51.118.515.913.2–1–15.44.02.71.30Full cutoff pressure psiAxial Input at Full Cutoff37.532.226.321.516.110.75.4Discharge pressure P psiAxial InputQ=15.9gpm Q=13.2gpm Q=10.6gpm Q=7.9gpmE f f i c i e n c y ,v %D i s c h a r g e v o l u m e Q g p m I n p u t L i n h pDischarge volume QDR–1–1–1–1Pressure - Discharge Volume CharacteristicsI n p u t L i n h pD r a i n v o l u m e D R g p mD i s c h a r g e v o l u m e Q g p mA x i a l i n p u t h p A x i a l i n p u t a t f u l l c u t o f f h pAt full cutoff60500 1000 2000 30008070Noise CharacteristicsMeasurement position: 1m rear of pumpDischarge pressure psiN o i s e l e v e l d B (A )5060013.426.840.2Input Lin70809010019.821.218.517.2vDischarge volume Q–1General Performance–1Discharge pressure P psiE f f i c i e n c y ,v %D i s c h a r g e v o l u m e Q g p m I n p u t L i n h p18.51.10.5013.426.840.20Pressure - Discharge Volume Characteristics21.215.9Discharge pressure P psiInput LinDischarge volume QDra in v olum e DR–1–1I n p u t L i n h pD r a i n v o l u m e D R g p mD i s c h a r g e v o l u m e Q g p mQ=21.2gpm Q=18.5gpm Q=15.9gpm Q=13.2gpm Q=10.6gpm42.937.532.126.821.516.110.75.4Axial InputDischarge pressure P psiA x i a l i n p u t h pAxial Input at Full Cutoff1.32.74.05.4Full cutoff pressure psiA x i a l i n p u t a t f u l l c u t o f f h p At full cutoff60508070Noise CharacteristicsMeasurement position: 1m rear of pumpDischarge pressure P psiN o i s e l e v e l d B (A )Discharge pressure P psi0 1000 2000 30000 1000 2000 300040.226.813.40 1000 2000 30000 1000 2000 30000 1000 2000 30000 1000 2000 30000 1000 2000 30000 1000 2000 3000A 11APiston PumpsResponse PerformancePressure CompensatorModel No.Response Time (s)Surge Pressure psit 1t 2P SPVS-0B-80.03 to 0.040.04 to 0.061PVS-1B-160.05 to 0.060.07 to 0.081PVS-1B-220.05 to 0.060.07 to 0.081PVS-2B-350.05 to 0.060.05 to 0.071PVS-2B-450.05 to 0.060.05 to 0.071M MPs2000 psi145 psi145 psi FC SOL ONSOL OFFSOL OFFTime s(Q=0)(Q=MAX)Qt1t2T est CircuitPiping volume 29.4 cu inPressure MPaL e g e n dResponse performance changes according to pipe volume and size. Use a surgeless valve to prevent surge pressure.Note: O-ring 1A/B-** refers to JIS B2401-1A/B.List of Sealing PartsPart Q'ty Size For 0B, 1B, 2B 9O-ring 11A-P1410O-ring 31B-P611O-ring11B-P10Part No.Part Name Part No.Part Name 1234567Body Spool Holder Plunger Spring Retainer Pressure adjusting bolt891011121314Nut O-ring O-ring O-ring Plug PlugMounting bolt290 to 580580 to 1000725 to 1160870 to 1300870 to 1300Compensator Part NumbersN0 - PSN-101000 P - ZR-G01-P-E2405CN1 - PSN-101010 R - ZR-G01-R3-E2171BN2 - PSN-101020N3 - PSN-101030Replacement ItemsPVS Rotating GroupPVS-0B-8*E30 PSCG-100000-0F PVS-1B-16*E13 PSG-101100-0A PVS-1B-22*E13 PSG-101200-1E PVS-2B-35*E13 PSG-102100-0A PVS-2B-45*E13 PSG-102200-0APVS-2B-45N3*E20Includes Items 4,5,6 & 7PVS Thrust Plate Item 11PVS-0B-8*E30 PSC69-100000PVS-1B-16*E13 PS69-101000PVS-1B-22*E13 PS69-101000PVS-2B-35*E13 PS69-102000PVS-2B-45*E13PS69-102000。
叶片式液压泵 T7CS 系列产品介绍说明书
T7CS, Denison 叶片泵主要技术信息泵理论排量Vi最高转速最高压力HF-0, HF-1HF-2HF-4, HF-5HF-0, HF-2HF-1, HF-4, HF-5系列规格间歇连续间歇连续cm 3/rev.rpmrpmbarbarbarbarT7C SE1758,325001800260230210175E2063,8E2270,3E2579,31500HF-0, HF-2 = 石油基抗磨液压油 HF-1 = 石油基液压油（非抗磨）HF-4 = 水乙二醇液HF-5 = 合成液压油（磷酸脂液等）注：更多的详细资料，或若上列性能参数不能满足您的特殊工况要求，请与当地的派克办事处联系。
主要特征性能稳定T7CS 系列叶片泵是为变速驱动而设计的，并且转速范围很宽。
和我们其他的T7系列叶片泵一样，随着时间的推移，性能仍然很稳定，使得该类叶片泵成为现代电液操作机器的理想解决方案。
寿命长压力平衡概念增加了泵的寿命。
而双唇口叶片增加了抗固体颗粒污染能力。
噪音低Denison 叶片泵技术在泵的整个工作范围和整个生命周期中允许低的噪音水平。
通用性和紧凑性T7CS 系列叶片泵提供了几种排量规格，最大达80 cc/rev,在不改变泵与电机连接的前提下，很好地扩展了T7BS 系列叶片泵的排量规格。
T7CS 系列叶片泵也可以选用SAE 花键轴，允许泵轴直接与电机轴相连接。
T7CS, Denison 叶片泵订货代号及安装尺寸型号T7CS - E25 - 4 R 00 - A 1 MW - MØ48SUCTION Ø25,4PRESSURE PST7CS 系列 - SAE J744SAE B 2孔安装法兰排量容积排量(cm3/rev.)E17 = 58,3E20 = 63,8E22 = 70,3E25 = 79,3传动轴类型1 = 平键轴(SAE B)3 = 花键轴(SAE B) 13齿4 = 花键轴(SAE BB) 15齿转向（从轴端方向看）R = 右转（顺时针）L = 左转（逆时针）修改代码Ex : NOP = 不喷漆油口形式MW = S = 特殊的法兰P = 1" - SAE J518 4螺栓法兰 公制螺纹密封等级1 = S1 BUNA N 5 = S5 VITON®设计序列号油口方向配置00 = 标准配置输入扭矩极限：轴Vi [cm 3/rev] x p max. [bar]Nm 116500262320600327420600327重量：23,0 kg转动惯量：7,5 Kgm 2 x 10-4P = 压油口S = 吸油口派克汉尼汾在中国的联系方式派克汉尼汾中国总部上海市金桥出口加工区云桥路280号邮编：201206电话：+86 - 21 - 2899 5000北京分公司北京经济技术开发区荣华南路2号院2号楼2201室邮编：100004电话：+86 - 10 - 8527 7300广州分公司广州市萝岗区科学城彩频路11号广东软件科学园F栋202室邮编：510663电话：+86 - 20 - 3212 1688大连办事处大连市高新园区火炬路3号纳米大厦11层1101室邮编：116023电话：+86 - 411 - 3964 6767西安办事处西安市高新区定昆池三路777号邮编：710065电话：+86 - 29 - 8111 8062成都办事处成都市锦江区锦东路568号摩根中心2栋10楼7号邮编：610066电话：+86 - 28 - 6180 6800长沙服务中心长沙市经济技术开发区板仓南路26号新长海数码中心2楼V24-V25室邮编：410005电话：+86 - 731 - 8985 1529派克汉尼汾香港有限公司香港九龙尖沙咀海港城港威大厦2座20楼01 - 04室电话：+86 - 852 - 2428 800819-06-B HYD-CH-4P-T7CSVSD。
叶片泵
4、双作用叶片泵的结构特点
YB型叶片泵是国产性能较好的一种双作用叶片泵，容积效 率可达90%以上。结构如图以此为实例，再对双作用叶 片泵的结构特点作一下了解、归纳。
16
船舶辅机第8-2章叶片泵 [Vane Pump]
4、双作用叶片泵的结构特点
定子、转子和叶片
定子型线由4段圆弧和4段过渡曲线构成。过渡曲线前半 段是等加速曲线，后半段是等减速曲线，以降低叶片在 槽中的加速度，防止冲击。
10
船舶辅机第8-2章叶片泵 [Vane Pump]
3、排量和流量的计算
双作用叶片泵的排量计算简图如图8-24-1所示 因为叶片每伸缩一次，每两叶片间油液的排出量为 ： V密maxV密min ；所以（V密max—V密min）Z即泵一转压出油液的体积， 即等于一环形体积。
图8-24-1双作用叶片泵排量计算简图
R：内滑力（使叶片向内滑 移）
T=NSin β
β
图8-26-1
R=NCos β
在一定的位置上N是不变 的，β增大：侧推力Ｔ减小 (减小弯曲）、内滑力Ｒ增 大（不被卡阻）。
26
船舶辅机第8-2章叶片泵 [Vane Pump]
（3）、叶片的倾角和倒角
图8-26
叶片与径向的夹 角为前倾角()。
有前倾角后，压 力角