Revised A 25 6301
3.3 Operating principle (continued)
3.3.3. Turbine Motor
The bearing air flows uniformly to the surface of the stator creating an air cushion which separates
the rotor from the stator. The balance between air pressure and electromagnetic forces enables the
rotor to float freely while maintaining its center above the stator.
Drive air is used to accelerate the turbine through the turbine drive vane which is attached to the rotor.
Brake air is used to slow down the turbine during an over-speed or shutdown condition.
1 Turbine wheel for braking and drive
2 Turbine body (Stator) supplying air to:
- Bearing air
- Turbine drive and brake
- Shaping air
3 Stator magnet
4 Rotor
5 Turbine brake holes
6 Turbine drive identations
7Deflector with o-ring
DES01013
5
6
1
2
3
4
7
DES01014
Bearing air
2
1
6
5
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