RU2320513C1 - Multi-hulled vessel of enhanced sliding and maneuverability - Google Patents

Abstract

FIELD: shipbuilding; building of multi-hulled vessels.

SUBSTANCE: proposed multi-hulled vessel has platform, load-bearing hull, outer hulls and inner hull, working space, propulsor, rudder or control surfaces and grate. Outer planes of sides of outer hulls and planes of bottoms of outer, inner and loading-bearing hulls have minimum angle of attack for sliding over stream washing the vessel. Working space is located above load-bearing hull having curvature for forming the lifting force. Rudder or control surfaces are located in working space. Multi-hulled vessel may be provided with additional load-bearing hull which is located behind propulsor for sucking water from under bottom, thus increasing the lifting force. Sliding of hulls in liquid medium is enhanced due to rarefaction of stream embracing the hulls and due to reduced area of wetted surface at forming the lifting force by load-bearing hull or by hulls.

EFFECT: enhanced efficiency; enhanced sliding and maneuverability.

2 cl, 3 dwg

Description

The project of a semi-submerged catamaran is well-known (see "The Fastest Ships" by L. S. Shapiro from. - 2f, 1989, Leningrad, "Shipbuilding") (1).

With this design, the issue of reducing resistance in a liquid medium is not solved efficiently enough.

A known scheme of a water-jet propulsion device (1).

The problem to which this invention is directed is to reduce drag and increase maneuverability when moving in a liquid medium due to a change in the structural features of a multihull.

The essence of the invention lies in the fact that a vacuum is created around the hull of the vessel, in contrast to the conventional, where it cuts and moves apart a liquid medium, that is, it is compacted.

The inventive multi-hull vessel is an alternative to air-winged vessels, unlike the latter, it has a greater displacement, there is no wing exit mode when moving, only the wetted surface area decreases and the slip increases due to the design features of the multi-hull vessel, which is a combination of several hulls, by which a rarefaction of the flow is created mainly near the contours of a multihull vessel, and also the fluid flow rate is used to eniya wetted surface that is achieved by providing the supporting surface of lift, the lifting surface may be either part of the inner body and a separate body having a large displacement, the curvature of the upper surface.

This design is a combination of several bodies having a common platform, a working space located above the supporting body with a mover and a grill, in which a rudder or control wheels are located behind the mover.

The essence of this design is illustrated by drawings.

Figure 1 - Top view.

Figure 2 - Side view in section.

Figure 3 is a section with two bearing surfaces and flows enveloping them.

A multi-hull vessel consists of a platform (1), external hulls (2) (3), an internal hull (4), a bearing hull (5), a working space (6), a propulsor (7), a grill (8), a rudder (9) .

The work is carried out as follows: a mover (7) located in the working space (6) creates a fluid flow, that is, a stream that envelopes the contours of the bodies is rarefied, which reduces the friction of the flow on the body (2), (3), (4), ( 5), while the bottoms of the housings (2), (3), (4), (5) and the outer sides of the housings (2), (3) are made with a minimum angle of attack, that is, they slide in a liquid medium, the fluid flow when enveloping the upper part of the supporting hull (5) creates a lifting force, which allows you to raise the multi-hull vessel, reducing its wetting area, the steering wheel (9) is located th in the working space (6) is carried out direction of fluid flow, i.e. pressure fluid from the working space of the vessel is carried out maneuver, like management nozzle with thrust vector control.

Claims (2)

1. A multi-hull vessel, consisting of a platform, a bearing hull, external and internal hulls, a working space, a propulsion unit, a rudder or rudders and a grill, while the outer planes of the sides of the outer hulls and the planes of the bottoms of the outer inner and bearing hulls have a minimum angle of attack with the possibility of sliding along the stream washing the vessel, the working space is located above the bearing body having a curvature to create a lifting force, while the steering wheel or control wheels are located in the working space. 2. The multi-hull vessel according to claim 1, having an additional supporting hull, which is located behind the mover for sucking water from under the bottom of the multi-hull vessel, providing an increase in lifting force.

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