Starter-generator modules for gas turbine engines
AssigneeHamilton Sundstrand Corporation
InventorsJacek F. Gieras, Lubomir A. Ribarov
Life of this patent
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Abstract
A starter-generator module for a gas turbine engine includes an inner stator portion with an armature defining a rotation axis and an outer rotor portion disposed about the rotation axis. The outer rotor portion includes a permanent magnet and a gear teeth member. The permanent magnet is disposed about the rotation axis and the gear teeth member is defined on the outer rotor portion such that the gear teeth member transmits rotational energy to an accessory gearbox in a start mode and receives rotational energy from the accessory gearbox in a generate mode.
Claims11
An accessory gearbox assembly, comprising:
- an accessory gearbox including a drive gear configured to transmit and receive rotational energy from a gas turbine engine;
- and
- a starter-generator module connected to the accessory gearbox, including:
- an inner stator with an armature defining a rotation axis;
- an outer rotor with a permanent magnet disposed about the rotation axis;
- and
- wherein the outer rotor is operatively connected to transmit rotational energy to the accessory gearbox through the drive gear in a start mode and receive rotational energy from the accessory gearbox through the drive gear in a generate mode, where the armature includes a radially inner yoke portion connected to a plurality of radially outer teeth, further including phase windings wrapped about at least two of the plurality of radially outer teeth, wherein the phase windings extend in parallel with the rotation axis, further including a control coil disposed circumferentially between the phase windings.
Dependencies are inferred from the claim text.