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2046results about "Watercraft hull design" patented technology
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Surface topographies for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Surface topographies for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Surface topography for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Wake enhancement assembly
InactiveUS6427616B1Inexpensively retrofittedLarge weighting factorWave generating vesselsWater sport boardsBiomedical engineeringVALVE PORT
The subject invention is a wake enhancement assembly to vary a configuration of a wake produced by the hull of a boat. The assembly preferably includes three or four fluid chambers adapted to be disposed within the hull of the boat. The fluid chambers can be filled to provide added weight in selected areas of the hull. The added weight alters how the hull rides within a body of water and as such will alter the wake of the boat. A plurality of hoses are mounted to and in fluid communication with the fluid chambers for selectively filling and draining the fluid chambers. The assembly is characterized by a manifold having an inlet and a plurality of outlets. Each of the outlets has a valve disposed in fluid communication therewith. The filling hoses are connected to the outlets such that the valves of the manifold control a flow of fluid to and from the fluid chambers independently of each other. The valves and manifold electronically and remotely control the selective filling and draining of the fluid chambers.
Owner:HAGEN TONI LYNN
Superhydrophobic coating
InactiveUS6994045B2Reduce frictionReduce resistanceWatercraft hull designWingsEngineeringProduct gas
Owner:CNT SPOLKA Z O O
Automated trim tab adjustment system method and apparatus
InactiveUS7311058B1Less materialLess pollutionWatercraft hull designVessel stability improvementMicrocontrollerTrim tab
A trim tab control system adapted to adjust trim tabs to optimize the velocity of a water vessel. The trim tab control system is adapted to have a tilt sensor and a velocity sensor in communication with the microcontroller where the microcontroller records the position of the trim tabs based on trim tab adjustments that the trim tab control system initiates, as well as trim tab adjustments initiated by the helmsman of the water vessel.
Owner:BROOKS BOB +1
Arrangement and method for dynamic control of the movements and course of a high-speed ship hull
InactiveUS6520104B1Increase pressureReduce energy lossSteering ruddersWatercraft hull designMarine engineeringWater flow
The invention relates to an arrangement and a method for dynamic control of the movements and course of a high-speed vessel hull (100). The arrangement (101) comprises propulsion members (102, 102') and at least one flap member (104, 104', 104'', 104'''). In this connection, the flap member is arranged so as to be capable of being brought adjustably at an angle (105) in relation to a water flow (106) relative to an aft side surface (107) of the vessel hull (100) in order in this connection to generate force components (108, 109) which act on said vessel hull (100) and on a front side (110) of the flap member (104), the flap member (104) being arranged so that the force components (108, 109) generated are directed on the one hand towards the aft side surface (107) of the vessel hull and on the other hand towards the front side (110) of the flap member (104) in the water flow (106) relative to the aft side surface (107) so as in this way to be capable of bringing about a change in the movements and / or course of the vessel hull (100). The invention is particular intended for manoeuvring vessel hulls of high-speed vessels of the type which are provided with water-jet drive, that is to say vessels with a water-free stem while in motion, but can also be applied to other types of high-speed vessels.
Owner:LA ME
Dynamically modifiable polymer coatings and devices
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Autonomous water-borne vehicle
InactiveUS20070203623A1Limit winch operationNon-magnetic metal hullsWatercraft hull designAutonomous Navigation SystemCommand and control
The technical disclosure herein describes an autonomous water-borne vehicle having a segmented non-planing hull with free flood fore and aft sections and a sealed center section. The disclosure also described such a vehicle having a fixed longitudinal thruster and a fixed lateral thruster for changing the heading of the vehicle. The disclosure also described such a vehicle having an autonomous mission system, an autonomous navigation system, and a web-based command and control system. The disclosure also describes such a vehicle having a submersible winch. The disclosure also describes such a vehicle wherein the sealed center section is of substantially rectangular cross section. The disclosure also describes such a vehicle having a wheeled battery tray.
Owner:J3S
Surface topographies for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Dynamically modifiable polymer coatings and devices
A dynamic coating includes at least one polymeric layer for attachment to a surface. The polymeric layer includes at least one electrically conducting polymer including layer, wherein under influence of a dynamic signal applied to the polymeric layer, a contact angle of the polymeric layer dynamically and substantially increases or decreases upon oxidation or reduction of the polymer. The polymeric layer can also expand or contract upon oxidation or reduction. The coating can be used for a variety of applications including a non-toxic biofouling preventative system and for forming low voltage electrowetting pumps.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Surface topographies for non-toxic bioadhesion control
An article has a surface topography for resisting bioadhesion of organisms and includes a base article having a surface. A composition of the surface includes a polymer. The surface has a topography comprising a pattern defined by a plurality of spaced apart features attached to or projected into the base article. The plurality of features each have at least one microscale dimension and at least one neighboring feature having a substantially different geometry. An average feature spacing between adjacent ones of the features is between 10 μm and 100 μm in at least a portion of the surface. The surface topography can be numerically represented using at least one sinusoidal function. In one embodiment, the surface can comprise a coating layer disposed on the base article.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Variable trim deflector system and method for controlling a marine vessel
ActiveUS8631753B2Improve stabilitySteering initiationsDigital data processing detailsMarine engineering
Owner:MORVILLO ROBERT A
Adaptive compliant wing and rotor system
Owner:FLEXSYS
Wake-modifying device for a boat
A recreational sport boat includes a hull, having starboard and port sides and a transom, and a pair of wake-modifying devices positioned aft of the transom. One of the wake-modifying devices is positioned on a port side of the boat's centerline and another of the wake-modifying devices is positioned on a starboard side of the boat's centerline. Each wake-modifying device includes a plate-like member and at least one downturned surface at a trailing portion of the plate-like member. Each wake-modifying device is pivotable between a non-deployed position and a deployed position about a pivot axis that is horizontal or inclined no more than about 35° from horizontal. When a wake-modifying device is in the deployed position, the downturned surface is lower than it is in the non-deployed position so as to be able to modify the boat's wake.
Owner:MASTERCRAFT BOAT
Superhydrophobic coating
InactiveUS20050061221A1Reduction of fluid friction resistanceReduce resistanceWatercraft hull designWingsEngineeringSuperhydrophobic coating
This invention solves the problem of reducing the fluid friction resistance accompanying relative movement of surfaces of a solid and a liquid. A superhydrophobic coating acting as a substrate for a gaseous lubricant of very low viscosity, reducing the fluid skin friction, has a hierarchic fracal structural of the surface wherein the forms of the first hierarchic level (2, 3, 9) are located at the coating's substrate, and the forms of each successive hierarchic level (22, 33, 99) are located on the surface of the previous hierarchic level and the forms of individual higher hierarchic levels reiterate the forms of the lower hierarchic levels. Forms of at least two hierarchic levels of rows (2, 22) and ridges (3, 33, 99) occur in the coating and, also, the surface has anisotropic geometry, maximally developed fractally in the direction transverse to the direction of flow and maximally smooth in the direction of flow and, also, has channels located in the coating's substrate to ensure gas flow.
Owner:CNT SPOLKA Z O O
Surf wake system for a watercraft
An adjustable surf wake system enhances a wake formed by a watercraft travelling through water. The system may include a flap for deflecting water traveling past the stern of the watercraft, and / or a positioner operably connected to the flap for positioning the flap relative to a longitudinal axis of the watercraft between a neutral position and an outward position. Positioning a port flap in its extended position enhances a starboard surf wake, and positioning the starboard flap in its extended position enhances a port surf wake.
Owner:MALIBU BOATS
Boat wake system
InactiveUS6953002B2Enhance wake sizeIncrease speedWatercraft hull designVessel partsKeelLiquid water
A water craft having a bow and a stern including an engine of sufficient thrust to create an enlarged wake at the stern of the boat as the boat moves along the surface of a body of water.The water tight compartment is positioned to carry water below the water line and essentially astride the centerline or keel of the boat. The compartment is adapted to contain liquid water in an amount sufficient to enhance or equalize the size of the boat wake.The compartment extends from a point forward of the transom and engine, and extends to a point forward of the midpoint between the bow and the stern, and terminates short of the bow while serving to exert downward force on the bow against the water when the water craft is underway and the compartment carries water.
Owner:MIKE MURPHYS ENTERPRISES
High-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly and manufacturing method thereof
InactiveCN102381435AEfficient coupling drag reduction effectImprove high-speed maneuverabilityWatercraft hull designHydrodynamic/hydrostatic featuresControl systemCoupling
The invention relates to bionic technical field, and specifically relates to a shark-imitating anti-drag structure and a manufacturing method thereof. The high-fidelity shark-imitating anti-drag structure capable of slowly releasing drag reducer instantly comprises a shark skin-imitating layer, the upper surface of the shark skin-imitating layer is a scutate surface, the lower surface of the shark skin-imitating layer is dug with at least two grooves, the at least two grooves are interconnected with each other, and through holes which interconnects the upper surface with the lower surface areprovided in the grooves; and the shark-imitating anti-drag structure further comprises a slow release electric hydraulic control system. Because the technical solution is used, the high-fidelity shark-imitating anti-drag structure not only possesses a high-fidelity shark-imitating squama groove appearance, but also can imitate instantaneous fluid-secreting system of living shark under high speed maneuvering, for realizing high-efficient coupling drag reduction of squama groove sand self-lubricating mucus.
Owner:SHANDONG UNIV OF TECH
Multi-role unmanned vehicle system and associated methods
ActiveUS20120290164A1Improve operating characteristicsEasy to implementUnmanned aerial vehiclesConvertible vehiclesOn boardControl system
An unmanned vehicle may include a vehicle body that comprises an enclosed hull. The unmanned vehicle may include a propulsion, a ballast control system, a center of gravity system, a pressurization system, a control surface system, a navigation control system, and an on board master control system. The on board master control system may execute local control over operation of the various systems of the unmanned vehicle. The unmanned vehicle may also include a power supply carried by a portion of the vehicle body to provide power to the various systems. The various systems of the unmanned vehicle may be independently operable to support selective operation of the unmanned vehicle in the air, on the surface of the water, and below the surface of the water.
Owner:UNMANNED INNOVATION
Friction reducing ship and method for reducing frictional resistance
InactiveUS6789491B2Reduce the power requiredReduce frictional resistanceWatercraft hull designJet pumpsWater dischargeAtmospheric air
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 the surface of the external hull plate 1. A structural feature of the ship is that micro-bubbles B are generated by creating a negative pressure region in the water W admitted in the water intake opening 2a, disposed below the waterline WL in the bow section 1a, so as to eject atmospheric air above the water into the water to generate micro-bubbles B, and discharging the micro-bubbles B together with water to the water discharge opening 2b provided in the bottom section 1b.
Owner:IHI MARINE UNITED INC
System optimization method and device of ship operation energy efficiency
ActiveCN102768524AStrong targetingVersatileElectrical controlWatercraft hull designMathematical modelData acquisition
Owner:CHANGSHA LVHANG ENERGY SAVING SCI & TECH
Surface topography for non-toxic bioadhesion control
ActiveUS20060219143A1Resisting and enhancing bioadhesionDifferent geometryPhotosensitive materialsPumpsCoated surfaceTopography
A coated surface for resisting or enhancing bioadhesion includes at least one patterned polymer including coating layer having a plurality of features attached to or projected into a base surface. The features each have at least one microscale (<1 mm) dimension and have at least one neighboring feature having a substantially different geometry. The patterned coating layer preferably provides an average roughness factor (R) of from 4 to 50. The coating layer resists or enhances bioadhesion as compared to the base surface.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Ship maneuvering control method and ship maneuvering control system
ActiveUS20120259489A1Reduce the burden onReduce fuel consumptionEnergy saving arrangementsAuxillariesSafety indexControl system
A short-term planned route from a start position that is a ship position at a first time up to an end position that is the ship position at a second time is designed based on a planned route, an estimated encounter marine phenomenon information, operation performance information measured on a ship, and a hull motion model of the ship, the estimated encounter marine phenomenon information being measured on the ship based on actually encountered marine phenomenon information. The short-term planned route makes a first evaluation function optimal, the first evaluation function containing: an index indicating an influence of a fluctuation portion between a planned position that is a ship position planned at the second time on the planned route and the end position; a fuel consumption index when the ship sails along the short-term planned route; and a safety index when the ship sails along the short-term planned route.
Owner:KAWASAKI HEAVY IND LTD
Method and apparatus for controlling friction between a fluid and a body
InactiveUS20050039661A1Minimizing detrimental drag effect of frictionReduce frictionRotary propellersWatercraft hull designElectricityNanostructure
A method and apparatus is disclosed wherein nanostructures or microstructures are disposed on a surface of a body (such as a submersible vehicle) that is adapted to move through a fluid, such as water. The nanostructures or microstructures are disposed on the surface in a way such that the contact between the surface and the fluid is reduced and, correspondingly, the friction between the surface and the fluid is reduced. In an illustrative embodiment, the surface is a surface on a submarine or other submersible vehicle (such as a torpedo). Illustratively, electrowetting principles are used to cause the fluid to at least partially penetrate the nanostructures or microstructures on the surface of the body in order to selectively create greater friction in a desired location of the surface. Such penetration may be used, for example, to create drag that alters the direction or speed of travel of the body.
Owner:WSOU INVESTMENTS LLC +1
Friction reducing ship and method for reducing frictional resistance
InactiveUS20020014192A1Reduce the power requiredWatercraft hull designJet pumpsMarine engineeringAtmospheric air
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 the surface of the external hull plate 1. A structural feature of the ship is that micro-bubbles B are generated by creating a negative pressure region in the water W admitted in the water intake opening 2a, disposed below the waterline WL in the bow section 1a, so as to eject atmospheric air above the water into the water to generate micro-bubbles B, and discharging the micro-bubbles B together with water to the water discharge opening 2b provided in the bottom section 1b.
Owner:IHI MARINE UNITED INC
Systems and methods for multi-mode unmanned vehicle mission planning and control
ActiveUS20150370252A1Improve operating characteristicsEasy to implementAutonomous decision making processDigital data processing detailsMarine engineeringControl system
Systems and associated methods for planning and control of a fleet of unmanned vehicles in missions that are coordinated temporally and spatially by geo-location, direction, vehicle orientation, altitude above sea level, and depth below sea level. The unmanned vehicles' transit routes may be fully autonomous, semi-autonomous, or under direct operator control using off board control systems. Means are provided for intervention and transit changes during mission execution. Means are provided to collect, centralize and analyze mission data collected on the set of participating unmanned vehicles.
Owner:UNMANNED INNOVATION
Vessel trim-tabs with pivotal connection
A trim tab apparatus capable of causing the stern of a vessel to be raised or lowered relative to the surface of the water in which it rests. A trim tab plane can be pivotally attached to one or more arms that can be attached to a vessel by one or more brackets. When the trim tab plane is rotated in an aft direction as a vessel is moving, the force of water passing under the trim tab plane causes the vessel stern to be raised. If the trim tab planes are rotated in a fore direction as the vessel is moving, water is forced across the top of the trim tab planes causing stern-drag, so that the vessel stern is lowered in the water.
Owner:ANTHONY KALIL
Wake absorber
InactiveUS6935263B1Decrease wakeLess pronouncedPiezoelectric/electrostriction/magnetostriction machinesRotary propellersBending forceArtificial muscle
A wake absorber, wherein an aquatic vehicle with a propulsor mounted on the vehicle and operative to propel the vehicle through a water medium, has a wake absorber mounted on the vehicle aft of the propulsor. The wake absorber includes an artificial muscle surface adapted to be impinged upon by a wake created by the propulsor. The wake absorber further includes electrodes mounted on the artificial muscle surface. Pressure of the wake upon the muscle surface exercises a bending force on the surface, which creates energy that is recovered by the electrodes as electrical power that can be digitized. Energy removed from the muscle surface by the electrodes weakens the wake and renders the wake less pronounced visually and acoustically.
Owner:NAVY US SECREATY OF THE
Low drag ship hull
ActiveUS20050126464A1Reduce resistanceReduce hull dragWatercraft hull designVessel movement reduction by foilsSternAir cavity
A low drag ship hull generally includes a side air cavity initiated by wetted bow section, bottom air cavity initiated by wetted bottom nosepiece, wetted stem section that closes a lower portion of the side cavity, wetted bottom tailpiece that closes the bottom cavity, stabilizing fin, and propulsor. The bottom of a catamaran hull cross structure includes bow impact alleviator. Optional flaps in the stabilizing fins, together with optional all-movable canard fins are used for control. Different wetted bow sections and retractable means are used for starting side cavities. A low drag hull may utilize multiple air cavities. A new low drag hull includes a new upper bottom air cavity that is initiated by an upper bottom wetted nosepiece, and closed by an upper bottom tailpiece. Alternative designs include a shortened forward hull spaced ahead of a shortened aft hull, and a hydrofoil-supported trimaran with low drag hulls.
Owner:LANG THOMAS G +1
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