Eternal Hydraulic HPV-02 Variable Displacement Pump
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.
| Size | A8VO55 | A8VO80 | A8VO107 | A8VO140 | A8VO200 | ||
|---|---|---|---|---|---|---|---|
| Displacement | Vg max | cm3 | 2 x 54.8 | 2 x 80 | 2 x 107 | 2 x 140 | 2 x 200 |
| Vg min | cm3 | 0 | 0 | 0 | 0 | 0 | |
| Gear ratio i = ninput/nrotary groups | 1 | 1 | 1 | 1 | 1 | ||
| Input speed at Vg max 1) | nmax 1 | rpm | 2500 | 2240 | 2150 | 2100 | 1950 |
| at Vg ≤ Vg max2) | nmax | rpm | 3000 | 2750 | 2450 | 2450 | 2250 |
| Flow at nmax and Vg max | qv max | L/min | 2 x 137 | 2 x 179 | 2 x 230 | 2 x 294 | 2 x 390 |
| Power at nmax, Vgmax and Dp=350 bar | Pmax | kW | 160 | 209 | 268 | 294 3) | 325 3) |
| Input torque | Tmax | Nm | 611 | 891 | 1192 | 1337 3) | 1592 3) |
| Rotary stiffness (single rotary group)5) | cTW | Nm/rad | 11213 | 17985 | 25565 | 41408 | 39505 |
| cTW | Nm/rad | 41442 | 67666 | 89381 | 146677 | 156876 | |
| Moment of inertia for rotary group | JTW | kgm2 | 0.0161 | 0.0209 | 0.0345 | 0.0581 | 0.0849 |
| without power take-off (PTO) | JTW | kgm2 | 0.0126 | 0.0173 | 0.0288 | 0.05 | 0.075 |
| Angular acceleration (single rotary group)5) | a | rad/s2 | 25800 | 21800 | 17100 | 7500 | 11000 |
| Mass approx. | m | kg | 82 | 90 | 116 | 146 | 180 |
| Variation: with integrated auxiliary pump, F00, F.. 4) | |||||||
| Displacement with integrated auxiliary pump | Vg max | cm3 | 8.6 | 8.6 | 8.6 (10.7) | 10.7 | 11 (19)4) |
| Effective displacement | Vg max/eff | cm3 | 9.7 | 9.7 | 11 (13.7) | 12.7 | 13.6 (23.6) |
| Gear ratio i = ninput/naux. pump | 0.887 | 0.887 | 0.78 | 0.843 | 0.804 | ||
| Variation: with power take-offs, K.., F. | |||||||
| Max. torque at PTO | Tmax | Nm | 250 | 350 | 380 | 450 | 650 |
| Gear ratio i = ninput/nPTO | 1 | 1 | 1 | 1 | 0.804 | ||
*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)
Features
- compact design
- high power density
- dynamic response
- high reliability
- long service life
- noise-optimized
- precise and load-independent
- 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
APPLICATION
Piston pumps are widely used in high-pressure, high-flow, high-power systems and where the flow needs to be regulated, such as mobile and construction equipment, engineering vehicles, heavy-duty planers, metal forming and stamping, machine tools, hydraulic presses, oilfield equipment, mining and metallurgical machinery, marine and other hydraulic systems.
- Agriculture
- Construction
- Mining
- Forestry
- Material Handling
- Marine
- Municipal Stationary