Closed-angle composite airfoil spar and method of fabricating the same
US10647406B2 · kind B2 · utility
2Cited by
5References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | May 8, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C3/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A closed-angle composite airfoil spar is provided for an airfoil assembly. The composite airfoil spar comprises a web portion having a thickness. The composite airfoil spar also comprises a flange portion having a thickness. The flange portion extends transverse to the web portion. The composite airfoil spar further comprises a radius portion interconnecting the web and flange portions. The radius portion is an acceptable amount thinner relative to thickness of the web portion and thickness of the flange portion based on design requirements and material properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.