Synergistic blade and hub structure for cooling fans
US8240996B2 · kind B2 · utility
7Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Apr 3, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/325
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A synergistic blade and hub structure for a cooling fan. Helical gussets are provided which proceed from the central hub member adjacent one blade member to the trailing edge of an adjacent blade member. The helical gussets provide structural load paths as well as aerodynamic flow guides. The helical gussets extend axially rearwardly to the trailing edges of preceding blade members and provide structural attachments between the leading and trailing edges of adjacent blade members. Hollow triangular structures are also provided on the rear of the fan structure and the triangulation area provides superior stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.