Base vented subcavitating hydrofoil section
US5046444A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1990 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Apr 10, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B1/248
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A "fish-shaped" hydrofoil section and in particular, a hydrofoil section having a body of cross-sectional area increasing in thickness from the leading edge to a point near the midchord of the hydrofoil section. The thickness of the body then decreasing some amount to a local minimum, and thereafter increasing along concave surfaces in a "fishtail" flare to a local maximum thickness at the trailing edge. A low pressure area develops behind the trailing edge of the "fishtail" flare and is ventilated with gas at a pressure greater than that of the developed low pressure area. The cross-sectional shape of the hydrofoil section can be symmetrical or cambered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.