15
4.3 Unit Components
Additional information can be retrieved from the flow scheme shown in the addendum. The unit
consists of the following main components:
Fig. 6:
Main components
1 Cooling circuit
2 Coolant container
3 Sheet-metal hood
4.4 Cooling Circuit
In the cooling circuit the coolant (i.e. the oil) is driven by the pump to the device that is to be cooled
and back via the return flow. The heat is dissipated into the ambient air by an air-cooled heat
exchanger. Exceedance of the maximum pump pressure is prevented by a bypass circuit. The oil
temperature is controlled by an electronic thermostat. Oil throughput is controlled by a flow control
device.
Fig. 7:
Main components
1 Stop valve
2 Fan
3 Oil drain screw
2
1
3
1
3
2
