Geometric approach to stress reduced intra-flow path shrouds for tuning modal responses in ram air turbine rotors
US12025026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2023 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Aug 3, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ram air turbine rotor comprises at least one intra-flow path shroud structure coupled between rotor blades, along a radial position between a support disc and an outer rim. The shroud structure includes shroud sectors each coupled between a respective pair of blades. The sectors each include a first edge adjacent to leading edges of the respective pair of blades, the first edge including a first curved segment, and a second edge adjacent to trailing edges of the respective pair of blades, the second edge including a second curved segment. The curved segments are each partially defined by a respective ellipse having a semi-major axis and a semi-minor axis. The semi-major axis is a portion of a spanwise distance between the respective pair of blades. The semi-minor axis is a portion of an axial distance between the leading edge of one blade and the trailing edge of an adjacent blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.