Short Description

Variable Pumps DPVGLiebherr Components

From A to Z – the components division of the Liebherr Group offers a broad range of solutions in the area of mechanical, hydraulic, electric and electronic drive system and control technology. The efficient components and systems are pro-duced at a total of ten production sites around the world to the highest standards of quality. Central contact persons for all product lines are available to our customers at Liebherr-

Components AG and the regional sales and distribution branches.

Liebherr is your partner for joint success: from the product idea to development, manufacture and commissioning right through to customer service solutions like remanufacturing.

components.liebherr.com

Gas engines Diesel engines Fuel injection systems Axial piston hydraulics Hydraulic cylinders

Human-machine interfacesand gateways

Control electronics and sensor technology

Power electronics Control cabinets Software

Slewing bearings Gearboxes and winches Electric machines Remanufacturing

Liebherr-Components AGPost box 222, CH-5415 Nussbaumen / AG +41 56 296 43 00 components@liebherr.com

Liebherr USA, CO.1465 Woodland Drive, Saline, MI 48176, USA +1 734 944 63 34 components.usa@liebherr.com

The Liebherr axial piston pump DPVG series is developed for the closed circuit in swash plate design. The variable displacement pumps are available in nominal sizes ranging from 108 to 280.

The nominal pressure of the units is 450 bar and the maxi-mum pressure is 500 bar absolute.

Thanks to a hydrostatic swash plate design, this variable displacement pump impresses with its high reliability and long service life cycle even under toughest conditions. The hydrostatic swash plate design is available in sizes 140 and 280, further sizes are in development.

The inverted piston design with 22° swivel angle ensures high efficiency and great power density. The DPVG series is available with the most common controllers.

A through-drive – just like the configuration of two DPVG pumps to a multi-circuit pump – possible in tandem design.

Valid for:DPVG 108DPVG 140 DPVG 165DPVG 280

Features:Series DClosed circuit

Regulator types:Various regulator types can be selected

Pressure range:Nominal pressure pHDN = 450 barMaximum pressure pHDmax = 500 bar

D

F

C

9

A

E

B

G

H

B

-Vg max +Vg max

I

0 -Vg max +Vg max

px

0 Vg min Vg max

pBDA

0 -Vg max +Vg max

TCHpA,B

pxB pxA

0 -Vg max +Vg max

TCEpA,B

IxB IxA

0 -Vg max +Vg max

DSpA,B

IxB IxA

0

Technical Data

Series D: variable displacement pump DPVG

Technical DataProduct dimensions (mm) * 108 140 165 280

Splined shaft profile DIN 5480 Tol. 9g W45 x 2 x 21** W40 x 2 x 18** W45 x 2 x 21 W55 x 2 x 26

Centering diameter A fit e8 152.4 152.4 200 165.1

Screw connecting diameter B 161.6 161.6 176.8 224.5

Fastening bores C 21 22 21 22

Splined shaft length D 55 55 60 68

Height adjustment E 190 185 205 225.5

SAE connection length, pressure F 223 260.5 270 295.5

Length without/with integrated feed pump G 268 / 315.5 312.5 / 367.5 322 / 381 360 / -

Overall length H 330.5 364.5 358.5 395

Pressure ports SAE J518 (6,000 psi) 1" 1 1/4" 1 1/4" 1 1/2"

Oil leakage port ISO 9974-1 M33 x 2 M42 x 2 M42 x 2 M42 x 2

* Dimensions may vary according to configuration and additional equipment (installation drawing on request).** Further splined shaft dimensions are available in the technical data sheet.

Note:Various mounting flanges are possible (SAE J617a, SAE J744, DIN/ISO 3019-2). With / without integrated feed pump; integrated pressure limiting valve is possible. Through-drive for pumps up to the same size as the installed pump is possible.

DPVGvariable displacement, closed circuit, nominal pressure 450 bar, maximum pressure 500 bar

Nominal size 108 140 165 280

Displacement Vg max [cm3] 107.7 140.2 167.8 283.4

Max. speed at Vg max, nmax [rpm] 3,000 2,850 2,700 2,500

Volumetric flow at nmax, qv max [l / min] 323 400 453 709

Drive power Δp = 430 bar, Pmax [kW] 232 287 325 508

Drive torque Δp = 430 bar, Tmax [Nm] 737 959 1,149 1,940

Available controls EL, EL-DA, ELS-DA, TCE, TCH, ELS, DS, DS-DA, SD, SD-DA

Control / regulation (Other control function combinations available on request)

Electric proportional adjustment

Hydraulic proportionaladjustment depending on control pressure Pressure cut-off

Torque control, hydraulic,with pressure cut-off

Torque control, electric,with pressure cut-off Direct controlled, electric

Type code for DPVG pumpsDPV G / 000 1 1 A 0

Pump type

Series-D / Pump / Variable displacement DPV

Circuit type

Closed G

Nominal size

108 140 165 280

• • • •

Minimum displacement

Vg min = 0 cm³ • • • • 000

Control / regulation (Further controls are available in the technical data sheet)

Electric proportional adjustment / pressure cut-off • • • • EL-DA

Electric proportional adjustment • • • • EL

Hydraulic proportional adjustment depending on control pressure • • • • SD

Torque control, hydraulic, with pressure cut-off • • TCH

Torque control, electric, with pressure cut-off • • TCE

Electric proportional adjustment with safety valve / pressure cut-off • • • • ELS - DA

Direct controlled, electric • DS

Direct controlled, electric / pressure cut-off • DS-DA

Electro-proportional, rising characteristic with safety valve • • • • ELS

Design

• • • • 1

Direction of rotation (looking at input shaft)

Right • • • • R

Left • • • • L

Mounting flange (Other mounting flanges on request)

Diesel engine flange SAE 1 (SAE J617a) 11

Diesel engine flange SAE 2 (SAE J617a) • 12

Diesel engine flange SAE 3 (SAE J617a) 13

Diesel engine flange SAE 4 (SAE J617a) 14

SAE D (SAE J744) • • 24

SAE E (SAE J744) - - • 25

DIN / ISO 3019-2 • • • 31 ...

Shaft end (Further splined shaft dimensions are available in the technical data sheet)

Splined shaft DIN 5480 • • • • 1

Connections

ISO 6162-2 / SAE J518-2, high-pressure port 6,000 PSI • • • • A

Attachments

Without attachment • • • • O

Integrated feed pump

Without feed pump • • • • 00

With feed pump, Vg = 24 cm3 without filter and cold start valve - - 24

With feed pump, Vg = 30 cm³ • • - - 30

With feed pump, Vg = 40 cm³ • • - 40

With feed pump, Vg = 50 cm³ - - • - 50

Through-drive (Further through-drives are available in the technical data sheet)

Without through-drive • • • • 0000

SAE A • A...

SAE B • • • • B...

SAE C • • • • C...

SAE D • • • D...

SAE E • E...

Valve

High pressure limiting valve with feed function • • • • NS-DB

High pressure limiting valve with feed function with feed pressure valve • • • • NS-DB-DS

Sensor technology

Without • • • • 0

With swash plate angle sensor • • • • W

• Available

On request- Not available

Liebherr Components

From A to Z – the components division of the Liebherr Group offers a broad range of solutions in the area of mechanical, hydraulic, electric and electronic drive system and control technology. The efficient components and systems are pro-duced at a total of ten production sites around the world to the highest standards of quality. Central contact persons for all product lines are available to our customers at Liebherr-

Components AG and the regional sales and distribution branches.

Liebherr is your partner for joint success: from the product idea to development, manufacture and commissioning right through to customer service solutions like remanufacturing.

components.liebherr.com

Gas engines Diesel engines Fuel injection systems Axial piston hydraulics Hydraulic cylinders

Human-machine interfacesand gateways

Control electronics and sensor technology

Power electronics Control cabinets Software

Slewing bearings Gearboxes and winches Electric machines Remanufacturing

Liebherr-Components AGPost box 222, CH-5415 Nussbaumen / AG +41 56 296 43 00 components@liebherr.com

Liebherr USA, CO.1465 Woodland Drive, Saline, MI 48176, USA +1 734 944 63 34 components.usa@liebherr.com

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