Electrical generation arrangement for an aircraft
AssigneeROLLS-ROYCE plc
InventorsHuw Llewelyn EDWARDS, Robert William SLATER
Life of this patent
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Abstract
This invention relates to a multi-spool gas turbine engine, including: a first generator for providing electrical power to an electrical system, the generator being driveably connected to a first spool; a second generator for providing electrical power to the electrical system, the generator being driveably connected to a second spool; a disconnection device for disconnecting the second generator from the second spool; and, a controller configured to selectively operate the disconnection device under predetermined powered engine conditions.
Claims15
A multi-spool gas turbine engine, comprising:
- a first generator for providing electrical power to an electrical system, the generator being driveably connected to a first spool;
- a second generator for providing electrical power to the electrical system, the generator being driveably connected to a second spool;
- a disconnection device for disconnecting the second generator from the second spool;
- and,
- comprising:
- a controller which is configured to selectively operate the disconnection device under predetermined powered engine conditions, the predetermined powered engine conditions corresponding to the rotational speed of the second spool or second generator.
A method of supplying electrical power from a multi-spool gas turbine engine having a first generator for providing electrical power to an electrical system, the first generator being driveably connected to a first spool;
- a second generator for providing electrical power to the electrical system, the second generator being driveably connected to a second spool;
- a disconnection device for disconnecting the second generator from the second spool;
- and, a controller configured to selectively operate the disconnection device under predetermined powered engine conditions, the method comprising the steps of:
- generating power with the first generator;
- generating power with the second generator;
- determining whether the engine is operating within predetermined powered operating conditions;
- and, comprising:
- activating the disconnection mechanism when the engine is not operating within the predetermined powered engine conditions and
- wherein the predetermined powered operating conditions correspond to a speed of rotation of the second spool or second generator.
Dependencies are inferred from the claim text.