Variable displacement pump
HPV-02

Displacement size from 55 to 280 cc
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Variable displacement pumps for closed circuit operation

All the controls used in the Series 02 are based on a load-independent control mechanism. No matter which control is used: identical commands always result in the same response in the machine. The sensitive and precise machine control makes work easier and increases productivity. Various customer system options for mechanical, hydraulic and electric input solutions are available. Further special regulating features like torque control and pressure cut-off are also available. The reliable control of the pump can easily be integrated into any kind of vehicle management control system.

Advantages

  • compact design
  • high power density
  • dynamic response
  • high reliability
  • long service life
  • noise-optimized
  • precise and load-independent
 
 

Design characteristics

  • axial piston pump in swashplate design for high pressure closed loop systems
  • clockwise or counter clockwise rotation
  • exact and rugged servo control devices (mechanical, hydraulic, electro-hydraulic)
  • integrated high pressure relief valves with make-up function
  • integrated low pressure relief valves for boost, control and cooler circuits
  • replaceable cartridge filter
  • SAE high pressure ports
  • SAE mounting flange with ANSI or SAE spline shaft
  • through shaft SAE A, B, B-B and C
  • charge pressure pumps for internal and external suction, integrated cold start relief valve optional
  • optional tandem and multiple pumps

Controls

  • M1R mechanical lever
  • H1 hydraulic pilot
  • E1 electro-hydraulic
  • E2 electro-hydraulic with enable function
  • E5 electro-hydraulic, 3 postition
  • CA speed related hydraulic mechanical with torque-/power limiter

Control Options

  • power limiter
  • pressure cut-off

Technical Data

HPV 55 75 105 135 165 210 280
Max. displacement cc/rev 54.7 75.9 105 135.7 165.6 210.1 281.9
Max. operating speed rpm 3900 3400 3200 3000 2750 2300 2400
Max. speed* rpm 4150 3600 3400 3200 2950 2500 2550
Nominal pressure bar 450 450 450 450 450 450 450
Max. pressure** bar 500 500 500 500 500 500 500
Max. housing pressure bar 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Torque Nm 374 519 719 929 1133 1438 1929
Corner power (theor.) *** kW 153 185 241 292 326 246 485
Weight (approx.) with H1 control, without oil**** kg 46 49 66 72 113 132 164
*highest transient speed, that can temporarily occur
**highest transient pressure, that can temporarily occur
***(Vmax x nmax x ∆p 430 bar)
****inclusive internal gear pump (size 55-135) or external gear pump (size 165-280)

Sectional View

  • 1control device: modular design, precise and load-independent
  • 2swash plate: hydrostatic bearing
  • 3piston-slipper assembly: 21° swash angle
  • 4housing: one-piece design for high rigidity
  • 5valve plate housing: highly integrated
  • 6two control pistons: servo-controlled swash plate
  • 7power take-off: for mounting of additional pumps
  • 8cylinder barrel: compact due to 21° technology
  • 9high pressure relief valves: integrated charge function

Downloads

Name File-Type Size  
LHY Product Catalogue PDF 3.62 Mb Download
HPV-02. Variable pumps for closed loop operation PDF 1.63 Mb Download
HPV-02 – CAD 3D Download Overview PDF 124.55 Kb Download
HPV-02_CAD_Download ZIP 112.62 Mb Download
Operating Instructions CL_2018-07 PDF 575.76 Kb Download

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