Fan driven emergency generator
AssigneePratt & Whitney Canada Corp.
InventorsRichard Welch, Jose Albero, Gerard Bueche, William Degroff, Jerzy Makuszewski
Life of this patent
Estimating the term…
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.
Claims16
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.
An emergency electrical power generating apparatus for use with an aircraft gas turbine engine having a fan assembly, comprising:
- 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.
A method for generating emergency electrical power using a windmill action of an aircraft gas turbine engine, comprising:
- 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.
Dependencies are inferred from the claim text.