Low drag surface
US4434957A · kind A · utility
28Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Mar 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A low drag surface comprises at its upstream edge an intermittent linear vortex producing means extending transverse to the flow of fluid across the surface. The vortex producing means produces a succession of rolling vortices which roll across the surface reducing the drag between the main flow and the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.