US Patent 11920499 Gas turbine engine with improved VIGV shielding
Patent 11920499 was granted and assigned to Rolls-Royce PLC on March, 2024 by the United States Patent and Trademark Office.
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US Patent 11920499 Gas turbine engine with improved VIGV shielding
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Patent abstract
A gas turbine engine includes: a fan rotating about an engine main axis; a core duct; an engine core; an Engine Section Stator (ESS) including a plurality of ESS vanes and arranged in the core duct downstream of the fan; and a plurality of variable inlet guide vanes (VIGV) adapted to rotate about a pivot axis and arranged in the core duct downstream of the ESS. The VIGV vanes are arranged angularly rotated with respect to the ESS vanes such that the VIGVs are shielded by the ESS, thereby protecting the VIGVs from icing and from ice shedding from the ESS vanes.
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Duncan A Macdougall0
Edward J Spalton0
Geoffrey B Jones0
Date of Patent
March 5, 2024
0Patent Application Number
181228070
Date Filed
March 17, 2023
0Patent Citations
Patent Primary Examiner
CPC Code
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