Electricity: single generator systems – Generator control – Combined permanent magnet and wound field structure
Reexamination Certificate
2010-12-23
2011-10-11
Patel, Tulsidas C (Department: 2839)
Electricity: single generator systems
Generator control
Combined permanent magnet and wound field structure
C322S045000, C322S033000, C322S047000
Reexamination Certificate
active
08035357
ABSTRACT:
A permanent magnet machine (PMM) has a kinetic portion electrically coupled to a power conversion portion. Motive power is provided to the kinetic portion by a torque applied to a motive shaft coupled to a prime mover, such as an aircraft engine or an automobile engine. A sensor is effective to detect a fault condition in the kinetic portion. When a fault is detected, the sensor applies a voltage to a winding within the kinetic portion generating an opposing directional counter torque to the motive shaft. A combination of the torque and counter torque exceeds a fracture yield strength of the motive shaft. The fault condition is then rendered safe while the prime mover may continue normal operation.
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Astronics Advanced Electronic Systems Corp.
Mohandesi Iraj A
Patel Tulsidas C
Rosenblatt Gregory S.
Wiggin and Dana LLP
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