Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David C Butt0
Alan R Maguire0
Date of Patent
June 9, 2009
Patent Application Number
11167383
Date Filed
June 28, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A generator assembly for a gas turbine engine. The assembly includes an electrical generator connected via a first sprag clutch to an accessory gearbox driven by the engine. The generator is also connected by a second sprag clutch to an air turbine connected to engine bleed valves which are selectively open when the engine speed falls below a predetermined level. The clutches are arranged such that the generator is driven at any time by the fastest rotating of the gearbox and turbine.
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