Planing Hull Water-Deflecting Surface Spray Thrust
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Solution Overview
Problem
Prior art planing hull designs fail to effectively utilize the energy contained in whisker spray, leading to wasted energy and increased resistance, which limits cruising speed and comfort.
Innovation Solution
The introduction of water-deflecting surfaces located above the water level, configured as approximately triangular, laterally rising parts that redirect lateral spray water streams downwardly and rearwardly, generating lift and forward thrust, while minimizing resistance and obstacles during wave impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If submerged channels are used to reduce pounding, then ride comfort is improved, but wetted area increases and friction resistance increases
Solution Approach 1:
Instead of placing water-deflecting surfaces below water level as in prior art, the patent positions them above the water level. This inversion allows the surfaces to deflect spray water downward and rearward to generate lift and thrust, while avoiding the creation of vacuum suction that increases wetted area and friction resistance.
2Force
If conventional spray deflection is used, then some lift is generated, but forward thrust is not utilized
Solution Approach 1:
The water-deflecting surfaces are configured to deflect spray water in multiple dimensions - primarily downward to generate lift, but also rearward to generate forward thrust. This multi-dimensional deflection充分利用 the velocity components of the spray, converting previously wasted lateral and upward spray energy into useful propulsive force.
Solution Approach 2:
The patent converts the harmful lateral spray (whisker spray) that normally increases resistance into a beneficial force. By positioning water-deflecting surfaces to intercept this spray and redirect it downward and rearward, the system generates both lift and forward thrust from what was previously wasted energy.
3Object-generated harmful factors
If submerged water-deflecting surfaces are used, then spray is deflected, but no forward thrust is generated
Solution Approach 1:
The patent inverts the conventional approach by positioning water-deflecting surfaces above water level rather than below. This allows the surfaces to intercept lateral spray and redirect it rearward, generating forward thrust through reaction force, while simultaneously deflecting spray downward to generate lift.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design significantly reduces fuel consumption, enhances cruising speed, and improves ride comfort by fully utilizing the velocity components of the whisker spray, providing a softer ride and additional forward thrust during wave encounters.
Implementation Method 1
a lateral spray water stream is generated when the submerged bottom part meets the sea water at said planing speed and flows laterally outwardly and strikes against said water-deflecting surface
Data Source
AI summary
A watercraft vessel with at least one planing hull, in the form of a single unitary hull or with two or more interconnected hulls, each hull having at its bottom portion a deadrise angle in the interval 5°-70° and provided with at least one water-deflecting surface which extends rearwardly and outwardly in relation to a keel region and which is oriented and configured so as to create a lifting force, and also a forward thrust on the hull. The forward thrust is caused by a lateral spray water stream, which is redirected rearwardly by the water-deflecting surface. The latter should be located laterally outwardly of, but adjacent to an approximately triangular bottom part which is submerged at the planing speed. The hull will also provide a smoother ride than conventional, planing hulls, especially in heavy sea.