Boat hull structure

Abstract

A boat hull comprises a hull body having two lateral flanks linked by a bottom surface, and at least two propulsion compartments provided in two bulges protruding below the bottom surface of the hull body. Each propulsion compartment lodges a propulsion engine located below the bottom surface of the hull body. The propulsion engines are located at the deepest position in the hull and below the water plane.

Description

FIELD OF THE INVENTION[0001]The present invention generally relates to boat hull designs, and more particularly to water surface vessels provided with a mono-hull structure and powered by engine propulsion.DESCRIPTION OF THE RELATED ART[0002]A variety of different boat hulls have been implemented in diverse types of conventional water surface vessels. Continued demands for stability and increased speeds stimulate further developments in boat hull designs.[0003]In certain mono-hull water vessels known in the art, the boat hull has a generally V-shaped profile for cutting through water. Unfortunately, one commonly known disadvantage of the V-shaped hull is its lack of stability on water with a hard drive in rough water and significant side rocking. Another drawback of the V-shaped mono-hull is its significant drag and draft, which thus require significant power to cruise the boat at high speeds.[0004]The trimaran or catamaran is another type of boat which assembles a plurality of thin...

AI Technical Summary

Benefits of technology

[0009]The present application describes a mono-hull structure with improved stability and less fuel consuming suitable for water surface boats powered by engine propulsion.

Problems solved by technology

Unfortunately, one commonly known disadvantage of the V-shaped hull is its lack of stability on water with a hard drive in rough water and significant side rocking.

Another drawback of the V-shaped mono-hull is its significant drag and draft, which thus require significant power to cruise the boat at high speeds.

Though this multi-hull boat is able to cruise at a generally faster speed, it is more affected by pitch polling when the front of the hulls dives into a wave and becomes covered with water.

Unfortunately, these designs have several drawbacks.

In particular, the weight distribution of the vessel may be insufficient to provide effective stability.

In addition, lodging the propeller blades partly through the bottom surface of the hull as described in U.S. Pat. No. 6,851,991 will greatly affect the propulsion efficiency of the propeller blades.

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