Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes
US12421854B1 · kind B1 · utility
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22References
20Claims
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Key dates
| Filing date | Apr 25, 2025 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Apr 25, 2045 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine comprises a fan, a core turbine engine coupled to the fan, a fan case housing the fan and the core turbine engine, a plurality of outlet guide vanes extending between the core turbine engine and the fan case, and an acoustic spacing. Acoustic spacing comprises a distance between the fan and the plurality of outlet guide vanes, and in combination with the use of airfoils with leading edge protectors for both various stages of blades and vanes, the engine effectively reduces noise emissions, enhances aerodynamic efficiency, and improves structural durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.