Lightweight rotary sail and application of such a sail
US12116100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2022 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Feb 7, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2240/93
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a Flettner rotary sail (800) capable of turning about a vertical axis, and comprising an aerodynamic surface of rotation extending between a proximal end and a distal end, comprising, between its two ends, a plurality of sections centered on the vertical axis and extending along said axis between two parallel circular hoops, respectively of diameter 2r, and 2r2, the hoops being spaced apart by a distance 2h along the vertical axis, the shape of the aerodynamic surface of the section being defined by the revolution of a continuous meridian curve comprising, between the two hoops, a groove of radius r0 less than or equal to r1 and less than or equal to r2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.