초록 ▼

A switched reluctance generator that can be used in an air cycle machine, where the generator uses the energy from the shaft of the air cycle machine to provide a back-up power supply to the magnetic bearings supporting the shaft. The generator includes circuitry for comparing the non-commutated exc

A switched reluctance generator that can be used in an air cycle machine, where the generator uses the energy from the shaft of the air cycle machine to provide a back-up power supply to the magnetic bearings supporting the shaft. The generator includes circuitry for comparing the non-commutated excitation current with a command signal to regulate the excitation current, thereby regulating the generator output voltage.

대표청구항 ▼

[ What is claim is:] [1.] A magnetic bearing system and turbine with a dual power supply, comprising:a shaft, rotatable about a central axis;a turbine mounted on the shaft having an inlet means for receiving pressurized gas, said turbine and shaft being driven into rotation by the gas;a magnetic bea

[ What is claim is:] [1.] A magnetic bearing system and turbine with a dual power supply, comprising:a shaft, rotatable about a central axis;a turbine mounted on the shaft having an inlet means for receiving pressurized gas, said turbine and shaft being driven into rotation by the gas;a magnetic bearing for supporting the shaft;a source of electrical current connected to energize the bearing in normal operation; anda generator for supplying electrical current to the magnetic bearing as an alternative power supply to the source of electrical current, the generator comprising a rotor disposed on the same shaft and a stator disposed circumferentially about the rotor.