Figure 1
From Figure 1 we can see that as engine speed varies, available output torque varies as well. To prevent engine stall, the input torque requirement of the pump must change accordingly.
Figure 2
A torque limiter with Power Shift allows the pump to always operate at the maximum available torque. The pump can be set for various power levels for improved fuel economy or maximum performance. The pump can be used with an engine speed sensing control (ESS)with the controller monitoring engine droop. Pump input power is reduced to allow the engine to quickly recover preventing overload, at any speed.
Figure 3
There are currently two versions of Power Shift available to meet system design requirements, electric proportional or hydraulic pilot control.
Key benefits of Kawasaki Power Shift:
- Reduction in emissions
- Reduction in fuel consumption
- Reduction in noise emission
- Reduction in cooling demands
- Increased machine versatility
- Longer machine life
- Can be retrofit to existing platforms
- Lower implementation cost
