B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
B63B 21/66 (2006.01) B63B 21/56 (2006.01)
Patent
CA 2374496
Hydrofoil apparatus comprising a first hydrofoil member (1) having chord and span dimensions and positive hydrodynamic pitching moments, a second hydrofoil member (2) having chord and span dimensions and positive hydrodynamic pitching moments, connection means (3) for connecting the first and second hydrofoil members (1, 2) together such that they are able to articulate about the connection means (3), at least first and second bridle members (4, 6) which are for enabling the hydrofoil apparatus to be towed and are such that the first bridle member (4) is articulately attached at one end (5) to an outer end portion of the first hydrofoil member (1) thereby forming a first pitching axis (BC), the second bridle member (6) is articulately attached at one end (7) to an outer end portion of the second hydrofoil member (2) thereby forming a second pitching axis (DE), the first and second pitching axes (BC, DE) forming an angle such that a component of hydrodynamic lift generated by the first hydrofoil member (1) and a component of hydrodynamic lift generated by the second hydrofoil member (2) act in parallel directions away from each other, and regulation means (8, 11) by which the angle formed by the first and second pitching axes is regulated.
L'invention concerne un appareil à hydrofoil comprenant un premier élément d'hydrofoil (1) présentant des dimensions de corde et d'envergure ainsi que des moments de tangage hydrodynamique positifs, un second élément d'hydrofoil (2) présentant des dimensions de corde et d'envergure ainsi que des moments de tangage hydrodynamique positifs, un moyen de connexion (3) destiné à raccorder les premier et second éléments d'hydrofoil (1, 2) l'un à l'autre de manière qu'ils puissent s'articuler autour du moyen de connexion (3), au moins une première et une seconde brides (4, 6) lesquelles permettent de remorquer l'appareil à hydrofoil et sont telles que la première bride (4) est fixée et articulée au niveau d'une extrémité (5) à une partie terminale extérieure du premier élément d'hydrofoil (1) formant ainsi un premier axe de tangage (BC), la seconde bride (6) est fixée et articulée au niveau d'une extrémité (7) à une partie terminale extérieure du second élément d'hydrofoil (2) formant ainsi un second axe de tangage (DE), les premier et second axes de tangage (BC, DE) formant un angle tel qu'une composante de poussée hydrodynamique produite par le premier élément d'hydrofoil (1) et une composante de poussée hydrodynamique produite par le second élément d'hydrofoil (2) agissent dans des sens parallèles à l'opposé l'un de l'autre, ainsi que des moyens de régulation (8, 11) permettant de réguler l'angle formé par les premier et second axes de tangage.
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
Shattock Bernard Aubrey
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