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willkommen/welcomeManfredWahlTitelEHLHydraulics

largemachinesEHL/m.wahl/10.2003Pressure

relief

valveMotorflangeShaft

sealPlate

camAspiratingholeinthe

plate

camVaneOiloutletinthe

plate

camRotorBushingVane-cellpumpMaintenance-free

sealEpicyclical

profileofthe

hydraulically

compensated

drive

shaftEmployment

for

the

hydraulic

sealingandfor

compensatingthermalexpansionsSmallproduction

tolerances

guaranteeahighvolumetric

efficiencyandlow

noise

levelBallbearing,greased

by

fluidScrewpumpTiltingangletransducerPressure

transducerControl

valveAxialpistonpumpDFEECaptiveC-washerCylinderdrum(rotates)small

adjusting

pistonGuideshoesLargeadjusting

pistonDeliveryplungerControl

valveAxialpistonpumpDFE(E)Variable-fixed

displacementpumpcombinationPumpinput

calibrationAnalogoutputsPump1activePump1+2activePump1+3activePump2activeAdvance

unitContact

pressure

builtupInjectionInjection

increasedPlasticizingDecompressionClosingblocklargemachinesMould

closingClampingforcebuild-upClampingforcebuiltupClampingforcebuiltupspringsplit

mouldClampingforcereductionTiebar

positioningMould

openingPressureHPSpeedHP+Y1.1SpeedHPHPMainpumps+pressure

keepingpumpY1.1Proportionalvalve

clamping

unitSVVTiebar

nuts

lockingMould

closingMould

protection

areaPressureHPSpeedHPSpeedY1.1Clampingforcebuild-upvariantDLocktiebar

nutsStartnozzle

forwardSVVLocktiebarnutS22,43,56,57Tiebar

adjustment

individualHPMainpumpsSFKPumpsonpressure

pad

blocksY1.1Prop.valve

clamping

unitCarriage

unit

forwardPressureRPSpeedRPAdvance

carriage

unitS5Advance

carriage

unitRPVariabledisplacementpumpInjectionandholding

pressurePressureSpeedHoldingpressureInjectionHoldingpressuretimeZ2Pre-injectiontimeZ1S4Blocking

zero

flowP1Variabledisplacementpump1P2+P3Variabledisplacementpump2+3(if

existing)S46+S47InterconnectionofpumpsS4DDifferentialsystemServov.ServovalvePlasticizinganddecompressionPlasticizingCoolingtimeZ4Z3Z6Pressurevariabledisplacement

pumpsSpeedvariabledisplacement

pumpsServovalveNozzle

retraction

delayZ6S3PlasticizingS4DDifferentialsystemS4Blocking

zero

flow(during

servovalve closed

loop

control)P1Variabledisplacementpump1P2+P3Variabledisplacementpump2+3S46+S47InterconnectionofpumpsCarriage

unit

returnPressureRPSpeedRPReturncarriage

unitCoolingtimeZ4S6Carriage

unit

returnS6AContact

pressure

reliefRPVariabledisplacementpumpClampingforcereductionActual

pressureinthe

pressure

padPressure

main

pumpsSpeed

main

pumpsSpeedY1.1are

movedonlocking

positioninparallelSVEUnlock

tiebarnutHPMainpumpsY1.1Prop.valve

clamping

unitS64Pressure

relief

piston

pressure

padSFKPumpsonpressure

pad

blocksS22,43,56,57Tiebar

adjustment

individualSFGSolenoid

for

pressure

reductionS77Differentialsystempressure

pad cylinderMould

openingMould

openingPressureHPSpeedHP+Y1.2Y1.2Prop.valve

clamping

unitHPMainpumps+pressure

keepingpumpS12ADifferentialsolenoid

clam

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