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7597060 |
Apparatus and method for reducing fluid drag on a submerged surface
An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. The apparatus creates a...
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7581508 |
Monohull fast ship or semi-planing monohull with a drag reduction method
A monohull surface ship has a hull having a profile which produces a high pressure area at a bottom portion of the hull in a stern section of the hull and hydrodynamic lifting of the stern section...
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7530318 |
Method and system for producing a potential over a body
This application concerns a method and system using a hydrodynamical effect for producing a potential over a body. The force obtained this way is useful for the propulsion and maneuvering of ships,...
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7497179 |
Quadrapod air assisted catamaran boat or vessel
A twin-hull catamaran boat or vessel comprising of four hydrodynamic pod sections connected with a mid-span recess on each hull that receives mechanically inducted gas or air for hull support. Each...
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7464657 |
Catamaran air cushion ship with folding, retractable seals
A vessel designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed in a catamaran or displacement mode, high speed in an air cushion mode, and amphibiously...
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7458332 |
High speed marine vessel
A high-speed boat includes a hull having multiple sponsons. At least one propulsion unit is disposed on the hull. The propulsion unit is moveable with respect to the boat hull adjusting a thrust...
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7424859 |
Shallow water boat
A shallow water boat is shown that operates well in both shallow water and deep water. A tunnel is provided along a centerline of a flat bottom, which tunnel starts near amidships increases in...
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7398740 |
Multi-mission/purpose ground-effect craft derived from a common modular platform
A multi-mission/purpose ground-effect craft is provided which is derived from a common modular platform which includes a hull; an inner floor structure adapted to be installed over the hull; a body...
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7347154 |
Amphibious craft
The present invention relates to an improved amphibious craft or vehicle and, in particular, but not exclusively, to a craft or vehicle that may be used for commercial and rescue tasks in a great...
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7296526 |
Dual stability seal skirt system for air cushion vehicle
A marine air cushion vehicle provides a hull having a hull periphery, an inflatable bag connected to the hull at the hull periphery, an inflatable skirt connected to the bag, and a pair of...
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7267067 |
Apparatus and method for reducing fluid drag on a submerged surface
An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. The apparatus creates a...
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7226325 |
Device for stabilizing re-entrant cavity flows past high-speed underwater vehicles
A stabilizing device for a supercavitating vehicle that isolates re-entrant jet flows of liquid from its cavity. The device has a receiving means positioned on the supercavitating vehicle where the...
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7219854 |
Cycloidal hybrid advanced surface effects vehicle
A “wing in ground effect” aerial vehicle includes a wing mounted on a fuselage, and two cycloidal propulsion units for providing lift, thrust and longitudinal control. Additional lift is...
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7207285 |
Variable hybrid catamaran air cushion ship
A vessel ( 10 ) designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed (e.g. Froude number (Fn)=0–0.3) in a catamaran or displacement mode and at high...
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7194973 |
Air cushioned rotatable platform
A fluid cushioned platform adapted to float on a body of liquid. The platform includes a deck having upper and lower surfaces and a lower peripheral member extending around the outer perimeter of...
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7188580 |
Variable-geometry graduated surface-foil for wing-in-ground effect vehicles
The invention is a marine wing-in-ground effect vehicle capable of sustained high speed operation in varying seas. The vehicle comprises an aerodynamic flat bottom lifting wing with a fuselage, a...
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7168382 |
Beachable high speed marine vehicle
Presented is a beachable high speed marine vehicle with air cushioned hull(s) capable of transporting heavy loads at very high speeds to beachheads and then departing the beachhead under its own...
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7165917 |
Apparatus for disposal of toxic and radioactive waste
A new system for underwater waste disposal is disclosed, consisting of a high-speed, hardened penetrator, optional rocket motor (or other compact propulsion device) and alternative mechanisms for...
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7108457 |
System and method for reducing drag and vortex induced vibration in marine applications
A marine riser that includes active boundary-layer control (“BLC”) for reducing hydrodynamic drag and vortex-induced-vibration (“VIV”) caused by currents. The marine riser includes at least...
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7096810 |
Bow mounted vessel propulsion system
A bow mounted vessel propulsion system is designed to exploit the characteristics of a self-producing vessel lubricating boundary layer of air or air bubbles formed during water surface interaction...
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7059260 |
Steering control by means of selected segmented drag reduction
A steering system is provided for a hydrodynamically shaped vehicle having a nose end, a tail end, and forward propulsion. The steering system includes an internal supply of drag-reducing medium,...
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7059259 |
Wing in ground effect vehicle with endplates
A Wing In Ground Effect Vehicle has a pair of supercavitating endplates ( 17 ) which extend below the fuselage ( 2 ) such that they can be immersed in water during flight thereover. The endplates...
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7051826 |
Surface effect skimmer
A surface effects skimmer vehicle generates a downward air flow into a tunnel under a main hull to lift the main hull off an adjacent surface, and rearward air flows for thrust. The air flows are...
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7044073 |
Methods for reducing the viscous drag on a surface and drag reducing device
A submerged surface is created, either as an add-on application or as an integral part of the submerged structure, having an array of closely spaced small bubble-filled holes which cover a large...
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7017505 |
Ship with wave energy engulfing propulsors
Presented is a water propulsion system for ships that enhances the efficiency of both the water propulsor(s) and the ship itself. This is accomplished by location of water inlet(s) for the water...
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7013826 |
Hybrid catamaran air cushion ship
A vessel ( 10 ) designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed (e.g. Froude number (Fn)=0-0.3) in a catamaran or displacement mode and at high...
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7004094 |
Drag reduction system and method
A system for reducing skin friction drag includes a user-controlled drag reducing substance and components for introducing the substance at or near the surface of the object for which skin friction...
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7000554 |
Frictionally reduced hull
A frictionally reduced hull is provided for a marine vessel, the hull having a water line, a bow end and an aft end. The hull has a first opening below the water line and a second opening below the...
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6981460 |
Self-Generating Air Cushion Vessel
A rigid concavity is formed in the underside of a hull of a water craft. Air enters into the concavity when the water craft is moving forward. Supplemental air is introduced into the concavity by...
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6962121 |
Boiling heat transfer torpedo
A system has a source of gas venting gas at a nose portion of the vehicle to create a gas/vapor cavity on the nose portion and an adjacent hull of the vehicle. A thermal engine propelling the...
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6951179 |
Boiling heat transfer surface
A system to create and maintain a gas/vapor cavity about a hull surface includes a fence selectively extendable above and below the hull surface. A gas venting means is positioned beneath the hull...
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6948439 |
Surface effect ship improvements
Presented is an improved Surface Effect Ship (SES) that offers the high efficiencies of the pressurized air cushion supported generic flexible bow and stern seal SES but without the generic SES's...
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6938569 |
Surface effect ship advancements
Presented is an advanced Surface Effect Ship (SES) that offers the high efficiencies of the pressurized air cushion supported generic flexible bow and stern seal SES but without the generic SES's...
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6932012 |
Multi-hull surface vessel with drag reduction on lateral hulls
A marine surface vessel having a main hull and at least two lateral hulls disposed respectively on opposite sides of the main hull. The vessel includes an engine disposed in the main hull producing...
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6899045 |
Air lubricated lifting body ship
Presented is a lifting body ship that has a blower pressurized air layer disposed in the underside of its lifting body such that the air layer reduces wetted area friction and hence the propulsive...
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6789492 |
Hull attachment for placement of drag reducing bubbles
A series of foils with air or gas injection at their tips are arranged in rows that project outward from the forward submerged section of a ship, boat or submerged hull section. The foils are...
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6789491 |
Friction reducing ship and method for reducing frictional resistance
A friction reducing ship reduces frictional resistance between the external hull plate 1 and water W by ejecting air A from the external hull plate 1 into water W to generate micro-bubbles B on...
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6748891 |
Frictional resistance reducing method, and ship with reduced frictional resistance
The present invention relates to a method for reducing the frictional drag of a ship and to a ship with reduced frictional drag, and its objects include effectively reducing the driving force used...
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6708635 |
Shell joint with an adjustable gas ejection slot
A water tight shell joint for a super cavitating underwater vehicle is described. The shell joint includes a female member defining a first part of at least one slot for ejecting gas, a male member...
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6684801 |
Supercavitation ventilation control system
A supercavitation ventilation control system is disclosed and includes a vehicle body having a fore end and an aft end. A cavitator is fit to the fore end of the vehicle body, the cavitator...
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6679192 |
Integrated entry air cushion marine vessel and marine platform
A monohull marine platform is provided which includes a plurality of bows each having a flat lower keel. A transverse stern seal is connected to the bows using an inclined lift surface and a pair...
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6672234 |
Air cushion vessel
A high-speed marine vessel, the weight of which is supported by a combination of hull elements including planing surfaces, displacing volumes, air cushions, and, at high speeds, also surfaces that...
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6659030 |
Apparatus and method for decreasing drag force by controlling turbulent flow on hull surface of ship
The present invention relates to an apparatus and method for decreasing drag force by controlling turbulent flow in a hull surface of a ship. The method and apparatus according to the present...
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6648270 |
Vehicle
A vehicle is disclosed having a hull with a longitudinal, vertical and lateral axis, the hull further having front end and rear ends and first and second sides. A turbofan engine mounted in said...
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6644894 |
Passive apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around structures
The use of fluid passages for structures in fluid environments such as offshore platform risers or spars to reduce and/or control vortex-induced vibrations and drag is disclosed. The use of fluid...
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6634310 |
High efficiency high speed ship
Presented is a high efficiency high-speed boat or ship that has multiple hulls. These multiple hulls can include recesses in their undersides that are supplied with pressurized air to form...
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6631689 |
Recycled cushion, finned, and bustled air cushion enhanced ship
Presented is a highly efficient and stable ship concept that is at least partially supported by an artificially produced gas cushion(s). Addition of a stern bustle aft of the gas cushion(s)...
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6619220 |
Hybrid SES/hovercraft with retractable skirt system
A hybrid craft can operate as a high speed SES in open water and deploy a retracted flexible skirt to operate as a hovercraft across beaches and overland. A downwardly extending boundary structure...
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6609472 |
Stable efficient air lubricated ship
Presented is an air lubricated ship that offers improved efficiency and stability over the prior art. Features of the preferred embodiment of the invention include: 1) a submerged bow that is...
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6604478 |
Hull configuration utilizing multiple effects for enhanced speed, range and efficiency
A hull configuration for a vessel that utilizes multiple effects to reduce friction between the vessel and the water's surface is provided by the present invention. In various embodiments, a...
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