Reduced drag airfoil platforms
US4135857A · kind A · utility
31Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Jun 9, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flow directing apparatus for use in an axial flow turbomachine is disclosed. Techniques for reducing aerodynamic drag along the walls of the flow directing apparatus are developed. In one embodiment, rotor blades have multiplanar platform surfaces which reduce aerodynamic drag pressure losses at the interface between each blade platform and the adjacent structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.