Fan driven emergency generator
First Claim
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1. An emergency electrical power generating apparatus for use with an aircraft gas turbine engine having a fan assembly, comprising:
- an electrical generator; and
a clutch assembly for connecting the electrical generator with the fan assembly in order to transfer torque from the fan assembly during a windmill action of the fan assembly, and for disconnecting the generator from the fan assembly during engine operation.
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Abstract
An emergency electrical power generating apparatus for use with a turbofan engine comprises an electrical generator and a clutch assembly. The clutch connects the generator with a fan assembly of the engine only during a windmill action of the fan assembly.
108 Citations
16 Claims
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1. An emergency electrical power generating apparatus for use with an aircraft gas turbine engine having a fan assembly, comprising:
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an electrical generator; and
a clutch assembly for connecting the electrical generator with the fan assembly in order to transfer torque from the fan assembly during a windmill action of the fan assembly, and for disconnecting the generator from the fan assembly during engine operation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An emergency electrical power generating apparatus for use with an aircraft gas turbine engine having a fan assembly, comprising:
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an electrical generator stator mounted to a housing of a bearing;
an electrical generator rotor mounted to one of a fan shaft and a low pressure spool shaft, supported directly on said bearing. - View Dependent Claims (9, 10, 11)
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12. A method for generating emergency electrical power using a windmill action of an aircraft gas turbine engine, comprising:
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disconnecting torque transmission from the engine to an emergency electrical power generator during engine operation; and
connecting torque transmission from the engine to the emergency electrical power generator during the windmill action. - View Dependent Claims (13, 14, 15, 16)
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Specification