Stable fluid foil section
US4780058A · kind A · utility
6Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1986 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Dec 3, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H1/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fluid foil for use in a marine propeller having an upper surface with a uniform, continuous convex shape commencing at the leading edge and terminating at the trailing edge of the foil section and a lower foil face having a convex shape extending from the said leading edge to the foil mid/chord position and having a concave shape extending from the said mid-chord position to the said trailing edge. An effective pitch line extending from the foil leading edge to the foil trailing edge is intersected tangentially by the concave shape of the lower foil face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.