High-strength low-weight fan blade assembly
US7331764B1 · kind B1 · utility
46Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2004 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Dec 27, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine cooling fan system including a hub disc about which first and/or second pluralities of elongated fan blades characterized by a first and second respective pitch angles may be fastened. Each respective fan blade further comprises a hub-engaging portion, a twisted transition portion and an air-engaging portion. Each fan blade is formed from a composite material having a thermoset resin matrix phase and an evenly dispersed continuous fiber reinforcement phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.