Magnetic bearings as actuation for active compressor stability c

Details Magnetic bearings as actuation for active compressor stability c Magnetic bearings as actuation for active compressor stability c

1995-02-28

1997-08-19

Larson, James

Rotary kinetic fluid motors or pumps

Method of operation

415 26, 415 70, 415133, F01D 700, F01D 2300

Patent

active

056581254

ABSTRACT:
An integrated system for controlling the positioning of a rotating rotor within a compressor to enhance the performance of a gas turbine engine. The rotor being attached to a rotating shaft that is coupled to the compressor housing by a magnetic bearing system. The magnetic bearings support and position the rotor within the high speed tubomachine. During operation of the compressor the magnetic bearings non-axially position the rotor relative to the compressor housing to provide compressor instability control. By non-axially displacing the rotor relative to the compressor housing there is a resulting local disturbance to the fluid flow field, which in turn serves as the disturbance to alter the dynamics of the aerodynamic system and displace the compressor surge line.

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Copy of viewgraph presentation to NASA at Allison Engine; John Robert Fagan; Feb. 7, 1994.
Copy of viewgraph presentation to NASA at NASA-Lewis; John Robert Fagan; Feb. 10, 1994.

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