Variable tandem fan outlet guide vanes
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United States of America Patent
Stats
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Oct 17, 2023
Grant Date -
Mar 2, 2023
app pub date -
Aug 25, 2021
filing date -
Aug 25, 2021
priority date (Note) -
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Abstract
A fan assembly includes a fan duct, an inlet fan, and an outlet guide vane assembly. The inlet fan includes blades adapted to force fan exit air toward an aft end of the fan duct. The outlet guide vane assembly is located in the fan duct downstream of the inlet fan and is configured to adjust a direction of the fan exit air received from the blades. The outlet guide vane assembly includes a first plurality of vanes configured to rotate to redirect the fan exit air in a first direction, and a second plurality of vanes located downstream of the first plurality of vanes. The second plurality of vanes are configured to rotate to redirect the fan exit air flowing in the first direction in a second direction to minimize losses created by distortions in fan inlet air and created by the first vanes.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- ROLLS-ROYCE CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bryan, William B | Indianapolis, US | 21 | 69 |
Hall, Christopher D | Danville, US | 27 | 61 |
Molnar,, Jr Daniel E | Lebanon, US | 35 | 28 |
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