Cascaded micro-groove aerodynamic drag reducer
US4650138A · kind A · utility
55Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Sep 30, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cascaded micro-groove aerodynamic drag reducer is provided by creating a plurality of spaced-apart, microscopic grooves in the aerodynamic surface. Each of the grooves is defined by oppositely disposed side walls with each of the side walls of each groove having at least one catenary shaped surface provided thereon. In the preferred embodiment, each of the side walls is provided with a plurality of catenary shaped surfaces with each of the catenary shaped surfaces having a plurality of smaller catenary surfaces provided thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.