Twin-hull boat with hydrofoils and control system
US5408948A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1994 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Mar 25, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B1/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A novel twin hull boat equipped with a pair of hydrofoils (3) and (4) comprising; a plurality of independently driven auxiliary wings (5/5) and (6/6) respectively being secured to both ends of a front hydrofoil (3) and a rear hydrofoil (4) secured to the bottom of the hull (1); a height sensor (11) for measuring height of the stem form water surface; a pair of inertia sensors or gyroscopes (13A) and (13B) for detecting rolling and pitching angles of the hull (1); a wing-angle sensor (10) for detecting angles of the auxiliary wings (5/5) and (6/6); and a controller (14) for controlling height of the stem constant, preventing the front hydrofoil (3) from coming out of water surface, and also controlling rolling and pitching behaviors of the hull (1) by driving the auxiliary wings (5/5) and (6/6) in accordance with a specific control mode selected by control-mode-setting switches (21) and (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.