US Patent 7621117 Apparatus and method for controlling engine windmilling
Patent 7621117 was granted and assigned to Pratt & Whitney Canada on November, 2009 by the United States Patent and Trademark Office.
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Patent abstract
An apparatus and method are provided for controlling the ground windmilling of at least one of the spools in a gas turbine engine. Electrical power is supplied to a braking apparatus in one aspect. In another aspect, an oil system is powered during ground windmilling.
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US Patent 07621117 Apparatus and method for controlling engine windmilling US Patent 7621117 Apparatus and method for controlling engine windmilling
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Patent Number
0762111700
Patent Number
762111700
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
076211170
Date of Patent
November 24, 2009
0Patent Application Number
114250120
Date Filed
June 19, 2006
0Official Website
Patent Primary Examiner
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076211170
Date of Patent
November 24, 2009
0Patent Application Number
114250120
Date Filed
June 19, 2006
0Official Website
Patent Primary Examiner
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US Patent 07621117 Apparatus and method for controlling engine windmilling
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07621117
Date of patent
November 24, 2009
Patent application number
11425012
Date Filed
June 19, 2006
Patent primary examiner
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