Airfoil for high efficiency/high lift fan
US4692098A · kind A · utility
13Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1985 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Oct 15, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Airfoil for vehicle fan which operates in low Reynolds number and varying turbulent conditions having a discontinuity formed on the suction surface thereof adjacent to its leading edge to trigger early formation of a laminar flow bubble so that sufficient suction surface remains downstream of the air bubble whereby air circumventing the bubble can reattach to the suction surface for sufficient pressure recovery for high lift and low drag performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.