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Stepless for optimum performance
Precise transmission control for simple operation without interrupting tractive effort. From stand still to maximum speed. Stepless. Together with the customer Linde Hydraulics defines new standards in technology. Advanced modular drive technology, realised in hydrostatic variators for variable speed transmission, form the core of power split gearboxes. Compact units with a hollow shaft are available for mounting to conventional gearboxes in smaller machines. These compact units are used as fully hydrostatic systems with PTO drive. With customer-specific developments, Linde Hydraulics supports the change from power shift to continuous variable transmission technology.
Advantages
- accurate control of volume flow
- exact gear shift without interrupting tractive effort
- dynamic response
- standstill control
- sensitive start-up
- precise crawling speed
- high efficiency
- low fuel consumption over entire operating range
- compact design
- high reliability
- long service life
Design characteristics
- variable displacement pump HPV-02 and fixed displacement motor HMF-02 back-to-back in one common unit
- inline-configuration
- integrated high pressure relief valves with charge and discharge function
- external feed
- electric or hydraulic pump control
Version for gearbox installation
- optimized for power split transmissions
- customized enclosure geometry
- engine power 120 - 165 kW
Version for gearbox extension
- fully hydrostatic unit for mounting on conventional gearbox
- PTO version with power take-off
- engine power up to 45 kW
Technical Data
| K-02 | 55/55*** | 75/75*** | 105/105*** | |
|---|---|---|---|---|
| Max. displacement | cc/rev | 55/55 | 75/75 | 105/105 |
| Max. operating speed | rpm | 3900 | 3400 | 3200 |
| Max. speed* | rpm | 4150 | 3600 | 3400 |
| Nominal pressure | bar | 450 | 450 | 450 |
| Max. pressure** | bar | 500 | 500 | 500 |
| Max. housing pressure | bar | 2.5 | 2.5 | 2.5 |
| Torque ( p=430 bar; charge press.=20 bar)**** | Nm | 374 | 519 | 719 |
| Corner power | kW | 153 | 185 | 241 |
*highest transient speed, that can temporarily occur
**highest transient pressure, that can temporarily occur
***(Nominal size variable displacement unit/ Nominal size fixed displacement unit)
****(Vmax x nmax x ∆p 430 bar)
**highest transient pressure, that can temporarily occur
***(Nominal size variable displacement unit/ Nominal size fixed displacement unit)
****(Vmax x nmax x ∆p 430 bar)