Bow foil
US5090352A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1988 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T70/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Vessels with improved performance capability and methods for improving such performance and foils which may be associated with a vessel for providing this improved performance capability. Additionally, a method and device for improving flow through a microporous barrier and a diffuser cell for generating gas bubbles, both of which may be associated with a vessel and/or a foil for a vessel for improving its performance. The foil is positioned forward of the vessel bowpeak with its trailing edge confronting same to impart momentum to water in the outboard direction to each side of the bowpeak while maintaining a streamline water flow, thereby reducing friction and turbulence on the wetted surface of the bow. The foil may have means of heating the surface of the leading section to reduce friction. The foil may have generators of and dispensers for friction reducing agents such as gas bubbles to distribute such agents into the path of the bow, advantageously from the trailing section of the foil. The foil may have means for drawing in water at the trailing edge to further streamline the passing flow. The foil may have a flow diverter therein to divert flow passing one side, through an …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.