Axial piston double pump with variable displacement: DPVD

1 The Liebherr Axial piston double pump DPVD series isdeveloped for the open circuit in swash plate variable displacement pumps are available in no-minal sizes from 108-108 to nominal pressure of the units is 400 bar and the ma-ximum pressure is 450 bar model is available as a double pump with a back toback cation. Connecting the hydraulic lines is greatlysimplified by a common suction inverse drive with a swivel angle of 22 is very Nefficient and has a very high power density. NThe DPVD series is available with the most for:DPVD 108-108 DPVD 165-165 Features:Series DOpen circuitRegulator types:Load Sensing with pressure cut-offVolume electric with pressure cut-offPressure range:Nominal pressure pHDN = 400 barMaximum pressure pHDmax = 450 barDocument identification:ID number:12455455 Date of issue: 04/2017 Valid for:DPVDA utoren:Liebherr - Department VH13 sheetAxial piston double pump with variable displacement : DPVDT able of contentsAxial piston double pumpDPVD 108-108 / 165-165 Date:04/2017 Version: No.

2 :124554552copyright Liebherr Machines Bulle SA 20171 Type code 32 Technical data of of pressure lip liquids103 Type of drive and hydraulic components184 Installation conditions positions235 Dimensions size size 108, mounting size 108, shaft size 165 size 165, mounting size 165, shaft Axial piston unit31 Date:04/2017 Version: No.:124554553copyright Liebherr Machines Bulle SA 20171 Type codeAxial piston double pumpDPVD 108-108 / Pump typeDouble/pump/ variable /D series DPVD2. Type of circuitOpen circuitO3. Nominal size (NS)NS1081654. Remaining volume Vg min cm30 - 15% of Vg max / value enter in cm35. Type of drive and regulatorElectro-proportional adjustment (rising characteristic) / pressure cut-off EL1 - DAPerformance regulator / load sensing LR - LSPerformance regulator / control pressure-proportional / pressure cut-off LR - SD - DAElectro-proportional adjustment (rising characteristic) / load sensing EL1 - LSFan drive LUPressure regulation or pressure cut-off DATotal performance regulation / control pressure-proportional adjustment SL - SDLoad sensing/pressure cut-off LS - DA6.

3 Design17. Direction of rotation (front view of the drive shaft)Left LRight R8. Mounting flangeDiesel engine flange SAE J617 SAE 1 11 SAE 2 12 SAE 3 13 SAE 4 14 SAE D (SAE J744)- -24 DIN / ISO 3019-2 flange Type codeDate:04/2017 Version: No.:124554554copyright Liebherr Machines Bulle SA 20171 Type codeAxial piston double pumpDPVD 108-108 / 165-165 = available = on request- = not possible1081659. Shaft endToothed shaftDIN 5480 1 ANSI 210. ConnectionsISO 6162-2 / SAE J518-2, high-pressure connection 6000 psi AISO 6162-1 / SAE J518-1, high-pressure connection 6000 psi B11. AccessoriesWithout add-on parts 0 With charge pump (impeller) i12. Gear pumpWithout gear pump 00 With gear pump (Vg = 24 cm3) 2413.

4 Through driveWithout through-drive 0000 SAE B2-holeOpen hole B11 DClosed hole B11 GSAE B-BClosed hole B21G14. ValvesWithout valve015. SensorsWithout sensor 0 With angle sensor WWith pressure sensor PWith speed sensor DNoteContact addresses for queries are provided on the back of this :04/2017 Version: No.:124554555copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / Table of values Maximum radial and Axial load of the driving shaft Nominal size108165 displacement volumeVg mincm30 - 15% of Vg max> 15% of Vg max on request Volume flow at Vg max and nmaxqvmaxl/min237352 Min. revolutions at Vg max and 1 bar at the suction portnmaxrpm50 Max. revolutions at Vg max and 1 bar at the suction portnmaxrpm22002100 Drive torque at Vg max and p = 400 barMmaxNm6861068 Driving power at qvmax and p = 400 barpmaxkW158235 Driving gear moment of (approx.)

5 Mkg116190 Torsional rigidityDriving shaft code 1 Nm/radValues upon requestNoteThe stated values (maximum values) are theoretical values, rounded, and without efficiencies or size108165 Max. radial forceFr maxNValues upon requestMax. Axial forceFa maxN2 Technical dataDate:04/2017 Version: No.:124554556copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / Maximum input and drive torques*) without taking account of efficiency1) ME = M1+M2+M3ME < ME max2) MD = M2+M3MD < MD maxNoteThe radial and Axial loads depend on the load cycle, pressure, revolutions and direction of planning a belt drive or continuous Axial and/or radial forces are expected, pleasecontact size108165 Torque at Vg max and p = 400 barM maxNm686*1068*Max.

6 Torque of drive shaft input(Installed without lateral force)ME maxNm Values upon request inW40W45 Max. torque of through driveMD maxNm Values upon requestM1 Torque of Axial piston pump 1P2 Axial piston pump 2M2 Torque of Axial piston pump 2ME1 Input torqueM3 Torque of Axial piston pump 3MD2 Drive torqueP1 Axial piston pump 1--Date:04/2017 Version: No.:124554557copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / Direction of Permitted pressure Operating pressure*) Bh = operating direction of rotation is stated with view of the driving shaft,as shown in the Right = clockwiseL Left = anti-clockwiseOperating pressure at connection ANominal size108165 Minimum pressure**Vg min pHD minbar6Vg max 18 Nominal pressure (fatigue endurable)pHDNbar400 Maximum pressure (single operating period)pHD maxbar450 Single operating period at maximum pressure pHDmaxts< 1 Total operating period at maximum pressure pHDmaxtBh*300**Rate of pressure changeRAbar/s17000 Date:04/2017 Version: No.

7 :124554558copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / 165-165**) If nothing else is stated**) There must be minimum pressure in the working circuit at connection A to ensure adequate lubrication of the driving gear at all swivel angles during operation.*) Other values upon Housing, leakage oil pressureDANGERF ailure of the fastening screws at working connection A!Danger to fastening screws of strength category pressure at connection SNominal size108165 Minimum absolute pressurepS *Maximum absolute pressurepS maxbar2*Permitted pressure p abs. max. in barSpeed n in rpmCharacteristic curveNominal sizeShaft diameter (mm)1084516550 Date:04/2017 Version: No.:124554559copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / 165-165*) Short-time pressure peaks of a max.

8 10 bar abs. are permitted (t < s). Shaft lip General informationThe rotary shaft lip seals (RWDR) are special sealing elements which permit a specific housing pressure. To ensurethat the tribological system functions optimally, the operating conditions must be complied with. Sealing edge temperature varies due to the following factors in the housing:- Circumferential speed- Hydraulic fluid temperature- Lubricating medium- Pressure build-upThe sealing edge temperature may be around 20 C to 40 C above the leakage oil temperature of a hydraulic axialpiston Temperature rangeThe FKM rotary shaft lip seal is permitted for leakage oil temperatures from -25 C to +115 C. For applications under -25 C: please contact oil pressure at connection T1/T2 Nominal size108165 Permanent absolute leakage oil pressure pLbar3 Maximum absolute pressurepL maxbar6*NoteThe pressure in the Axial piston unit must always be higher than the external pressure on the shaft lip :04/2017 Version: No.

9 :1245545510copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / Hydraulic General informationSelection of the appropriate hydraulic fluid is significantly influenced by the anticipated operating temperature rel-ative to the ambient temperature, which is equivalent to the tank required Fill Filtering- To maintain the specified purity class 21/17/14 according to ISO 4406 under all circumstances,filtering of the hydraulic fluid is The hydraulic fluid is filtered by the device-specific use of oil filters in the hydraulic system. - Cleaning and maintenance intervals for the oil filters and the entire oil circuit depend on use of the unit(see the device-specific operating instructions).

10 ATTENTIONYou must not mix different mineral oil hydraulic fluids!SpecificationLH-00-HYC3 ALH-00 HYE3 ANoteFor more information, see: (brochure: Lubricants and service fluids) Alternatively: Contact size108165 Fill quantity commissioning, the hydraulic unit must be filled with oil and vented. This process must be checked and repeated if necessary during operation and after long downtimes!Date:04/2017 Version: No.:1245545511copyright Liebherr Machines Bulle SA 20172 Technical dataAxial piston double pumpDPVD 108-108 / Operating limits*) Depending on the hydraulic fluid that is used**) Relative to tank temperature- Cold start phase:- Warm-up phase:- Normal operation:ATTENTIONT emperatures -40 C in the system = Axial piston unit must not be the Axial piston unit to at least -40 [ C ]**Viscosity [ mm2/s ]*Cold start phase-40 to -251600-1000 Warm-up phaseabove -251000-500 Normal operation< 500 NoteOptimum operating range.