The invention relates to a body towed by a cable behind a vessel and commonly termed towfish, the towfish (12) comprising a supporting structure (23) configured to move in the water in a main horizontal direction (25), and at least one appendage (27) configured to generate a hydrodynamic lift (P) for the towfish (12) that is directed downwardly when the towfish (12) moves in the water under the effect of the towing, the appendage (27) being orientable in order to modify its lift. According to the invention, the towfish (12) comprises a stock (21) which is rotatable with respect to the supporting structure (23) about a horizontal axis (30) perpendicular to the main horizontal direction (25), the cable being fastened to the stock (21). An orientation (?) of the appendage (27), allowing it to modify the lift (P), is dependent on an angle (ß) formed between the stock (21) and the supporting structure (23) about the horizontal axis (30).
L'invention concerne un corps remorqué par un câble derrière un navire et communément appelé poisson, le poisson (12) comprenant un bâti (23) configuré pour se déplacer dans l'eau selon une direction principale horizontale (25) et au moins un appendice (27) configuré pour générer pour le poisson (12) une portance hydrodynamique (P) dirigée vers le bas lorsque le poisson (12) se déplace dans l'eau sous l'effet du remorquage, l'appendice (27) étant orientable afin de modifier sa portance. Selon l'invention, le poisson (12) comprend une crosse (21) mobile en rotation par rapport au bâti (23) autour d'un axe horizontal (30) perpendiculaire à la direction principale horizontale (25), le câble étant fixé à la crosse (21). Une orientation (?) de l'appendice (27), lui permettant de modifier la portance (P), est fonction d'un angle (ß) formé entre la crosse (21) et le bâti (23) autour de l'axe horizontal (30).
TOWFISH WITH REVERSIBLY VARIABLE HYDRODYNAMIC LIFT AND TOWING LINE COMPRISING THE TOWFISH
POISSON A PORTANCE HYDRODYNAMIQUE VARIABLE DE FACON REVERSIBLE ET LIGNE DE REMORQUAGE COMPRENANT LE POISSON
2019-06-27
Patent
Electronic Resource
French
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