RU2177425C1 - Hydrofoil trimaran - Google Patents

Abstract

FIELD: shipbuilding; building of hydrofoil trimarans. SUBSTANCE: trimaran has center and side hulls. Shipboard power plants and steering gears are arranged in all three hulls. Ship is provided with underwater hydrofoil system which consists of at least two hydrofoils. Each hydrofoil is secured to each hull. Besides that, hydrofoil system includes at least two inter-hull incidence-controlled hydrofoils. EFFECT: enhanced rigidity of attachment trimaran hulls; improved hydrodynamic properties and seaworthiness; possibility of creating additional lift force; enhanced economical efficiency. 1 dwg

Description

 The invention relates to shipbuilding and for the construction of hydrofoil vessels. It can be transport, sports, fishing, technical and special purpose ships.

 Known vessels (US 4348972 A, SU 1217717 A, SU 1625768 A and FR 2533192 A), including the main hull, as well as auxiliary hulls on the sides of the main hull, serving to increase the stability and carrying capacity of the vessel.

 A disadvantage of previously known technical solutions is the small maneuverability of the vessel, especially at low speeds, a large inertial braking distance.

 Known hydrofoil vessels (patents RU 2053156 and RU 2068790) containing a hull with an underwater wing system.

 The author does not know the design of trimarans with a hydrofoil.

 The purpose of the present invention is to improve the hydrodynamic qualities and seaworthiness of the vessel, tighten the fastening between the hulls of the trimaran, create additional lifting force, i.e. increase the economic efficiency of the operation of the trimaran.

 This goal is achieved in that the vessel, consisting of a middle hull and side hulls, contains at least two hydrofoils, each of which is common to all hulls of the vessel and is attached to each of them. Between the middle and side hulls of the vessel, at least two inter-hull hydrofoils are attached to them. The interbody hydrofoils are configured to control their angle of attack. All buildings have marine power plants and steering devices.

 The drawing shows a diagram of a trimaran.

 Structurally, the ship is a trimaran. Vessel 1 consists of three hulls: the middle (main) hull 2 and the side hulls 3. All three hulls are equipped with ship power plants and steering devices (not shown). The middle casing 2 is connected to the side casing 3 by inter-hinged (deck) fasteners 6, inter-hull fasteners 9. The inter-hull fasteners 9 can be telescopic. The middle hull and side hulls may have a common deck 5. On the vessel there is a superstructure 7 on the main hull and superstructures 8 on the side hulls. Hulls 2 and 3 of the trimaran have at least common fore and aft hydrofoils 10, which are attached to the hulls by struts 4.

 At least two inter-hull hydrofoils 11 (one wing from the middle hull to each of the side hulls) can be located between the trimaran hulls, which, along with performing the function of the hydrofoils themselves (obtaining lift), act as inter-hull fasteners. A variant of the implementation of the hull hydrofoils as with a fixed angle of attack, and with the ability to control the angle of attack. A possible embodiment of the vessel with the placement of marine engines only in the side hulls.

Claims (1)

 A vessel consisting of a middle hull and side hulls, where ship power plants and steering devices are located in all hulls, and comprising an underwater wing system, characterized in that the underwater wing system consists of at least two underwater wings, each of which is common to all hulls of the vessel and attached to each of them, and at least two inter-hull hydrofoils, made with the possibility of adjusting the angle of attack.