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Patent Searching and Data


Matches 601 - 650 out of 2,737

Document Document Title
WO/2003/014853A1
A fluid flow control mechanism is provided for linearizing a fluid flow. The mechanism includes a frame having a cylindrical outer baffle which rotatably supports a plurality of propeller elements thereon. Each propeller element defines ...  
WO/2003/010045A1
The invention relates to a ship provided with at least one propeller (2), wherein pressure fluctuations and mechanical strain imposed upon the hull of the ship are substantially reduced by providing an insulating air cushion (12) in at l...  
WO/2003/010043A2
An apparatus (10) for the purpose of flotation and transportation on water, having a pair of buoyant wing-shaped floats (100), and food wells (410) in the floats designed to be under the center of buoyancy of each float. The apparatus ma...  
WO/2002/090182A1
A high-lift twin rudder system, wherein a pair of high-lift rudders (1) and (2) having top end plates (6) and (7) at the top end part of rubber blades (4) and (5) and bottom end plates (8) and (9) at the bottom end part thereof are dispo...  
WO/2002/090180A1
A spiral-shaft propulsion unit having a spiral shaft formed in a single spiral or a multi-spiral and having design choices suitable for various conditions such as ship applications and navigation areas. A spiral-shaft propulsion unit hav...  
WO/2002/064424A1
The invention relates to shipbuilding engineering and can be used as a propelling device for an underwater vessel. The inventive noiseless propelling device for the underwater vessel comprises electrical magnets powered by a power supply...  
WO/2002/062658A1
The invention relates to a marine propulsion system and describes a marine propulsion system with improved efficiency, which leads to reduced wave formation, comprising an at least partly submerged forward propulsion unit, rotating aroun...  
WO/2002/030740A1
A boat propulsion system includes a boat (52, 52', 152, 152') having an elongated hull (54, 54', 154, 154') with a water flow channel (56, 56A, 56B, 156A, 156B) formed in the bottom thereof, wherein a movable trim plate (68, 68A, 68B, 17...  
WO/2002/016778A1
The invention relates to a covered propeller for conveying gases and liquids, for operating land, air and water vehicles and operating in a reverse mode as a water or wind generator. Conveyor blades (21, 24) are disposed around a rotatio...  
WO/2002/008054A1
A method and system for developing a propulsive force for driving different types of water, air or land vehicles. Four blades (32, 33, 34 and 35) having preferably airfoil sections are rotated around the axis of the driving shaft (11) an...  
WO2001079058A9
The invention concerns a rigid or inflatable water craft propelled by a double-flipper device for safe displacement both for the user and nearby swimmers. It consists of a floater specifically linked to a propelling system comprising a p...  
WO/2001/098654A1
A wind turbine rotor blade (10) comprising one or more means (4) secured to the blade (10) for changing the profile thereof depending on the atmospheric temperature. The means comprises at least one laminate having at least two layers of...  
WO/2001/085535A1
Hull and propeller arrangement for a surface watercraft (1), provided with at least one propeller (3), in addition to which the propeller (3), at high speeds of the watercraft, is surface-piercing, and the propeller (3) is arranged in su...  
WO/2001/074658A2
A marine propeller (10) with increased performance in reverse has a hub (11) and a multiplicity of blades (13, 16) extending radially outward. A portion of the trailing edges (15, 17) of some or all of the blades (13, 16) are modified to...  
WO/2001/064510A1
A high performance propeller comprises a hub and a plurality of blades, characterized in that on the tip of each blade is formed an extension that is substantially perpendicular to the blade and extends from the tip either to one side of...  
WO/2001/053147A1
The invention is based on the objective of preventing cavitation on streamlined bodies which are immersed in a liquid (2) at high relative speed (v), permitting their use within wider speed ranges. To this purpose, in a transverse slot (...  
WO/2001/047770A1
Partially submerged disc with variable pitch blades provided for installation to articulated transom consists of hub of sufficient size (14) flanged to main shaft (13) with number of inner flanges (16) actuated by linear movement of joke...  
WO/2001/038697A1
A single or multi-bladed rotor for use with a fluid flow generator or reactor, the rotor comprising a central hub (12) which is adapted to be mounted to a rotatable shaft, the rotor further comprises at least one radial blade (11) mounte...  
WO/2001/025084A1
A propulsion system for a watercraft, particularly a ship, comprises a cylinder (1), securely fixed to the watercraft, and a piston (2) running in said cylinder (1). Said system is of simple construction and prevents any emissions, being...  
WO2001009486B1
A ribbon drive power generation system and method is disclosed. The system is equipped with an extended tube (16) having an intake at a first end and an outlet at a second end. A ribbon (14) formed of helical coils is mounted in the tube...  
WO/2001/009515A1
A ribbon drive pumping apparatus and method for liquids is disclosed. The pump has an extended tube (14) having an intake at a first end and an outlet at a second end. A ribbon (12) formed of helical coils is mounted in the tube for rota...  
WO/2001/009516A1
A ribbon drive propulsion apparatus and method for water-borne vessels such as surface craft and submersibles is disclosed. The vessel is equipped with an extended tube (14) having an intake at a first end (A) and an outlet at a second e...  
WO/2001/002742A2
The invention relates to a rotor (1) through which a fluid flows in a main direction of flow (H) and which is provided with at least one rotor blade (4), said rotor blade being arranged in such a way that it can rotate about a rotor axis...  
WO/2001/000485A1
The aim of the invention is to provide a propelling and driving system for boats which has an outboard rudder propeller (10) and with which it is possible to achieve comparatively good reliability in terms of the manoeuvrability of the b...  
WO/2001/000484A1
The invention relates to a merchant navy vessel comprising a hull which is provided for accommodating goods and/or people and which comprises at least one rotating rudder propeller that serves as a drive unit. The rotating rudder propell...  
WO/2000/078606A1
An oscillatory motion propulsion system is made up by two elements oscillating in phase opposition, whereof the first element is a solid body (A) while the second element is a laminar structure (B).  
WO/2000/073137A1
Propulsion device comprising a number of profiled propeller blades (6) distributed across the circumference between two rotatably arranged discs (4) rotatable around a horizontal shaft (7) in such a way that the blades are almost square ...  
WO/2000/069719A1
A marine propeller comprises a hollow hub body (11), a plurality of propeller blades (16) and a plurality of fastening devices (19, 21) for each propeller blade (16). Each fastening device includes a tension rod (19) and a flange member ...  
WO/2000/068071A1
The invention relates to a high-speed marine ship comprising a hull which is configured to receive pay loads or passengers and preferably comprising two rotatable, gondola-type electric rudder propellers (pods) (2) which are located bene...  
WO/2000/068073A1
The invention relates to an electric rudder propeller for a high-speed marine ship, comprising a multi-phase electric motor which is mounted in a gondola-shaped housing beneath the stern of the ship, using a rotatable, preferably two-par...  
WO/2000/068072A1
The invention relates to a course-stable, fast, seagoing ship comprising a hull that is optimized for a rudder propeller. The inventive ship has a hull designated for accommodating cargo or passengers and has at least one rotatable, pref...  
WO/2000/058150A1
Boat propeller drive with an underwater housing which is connected in a fixed manner to a boat hull and has tractor propellers arranged on that side of the housing facing ahead. In the rear edge of the underwater housing, a rudder blade ...  
WO/2000/058148A1
Boat propeller drive with an underwater housing which is connected in a fixed manner to a boat hull and has tractor propellers which are arranged on that side of the housing facing ahead and the blade areas of which are adapted to one an...  
WO/2000/053439A1
A vehicle using a caterpillar device, wherein the caterpillar serves as a buoyant body. As a result, it is possible to provide a vehicle that has heretofore not existed, such as an amphibious vehicle or a high-speed boat with a reduced p...  
WO/2000/044616A1
The uniform circular movement of the blades of the cycloid thrusters for watercraft can be broken down into two perpendicular sinusoidal alternative movements. The cross movement is similar to the beating of the caudal fins of fish and s...  
WO/2000/043266A1
The instant invention is directed toward a marine craft having a semi-enclosed surfacing type propeller (11) in a tunnel that draws air through the specific areas located and shaped to enhance performance and compensate for prime mover t...  
WO/2000/042326A1
A motion converting device capable of diversifying such as a reduction in size, increase in efficiency, reduction in cost, and others, wherein a supporting member is installed in a specified plane limited by a first direction and a secon...  
WO/2000/038979A1
A method for propulsion of water-going vessels (1) comprising a plate (9), which is located in the water (2) and extends across a desired direction of motion for the vessel (1), where the plate (9) is moved from a first position (P1) to ...  
WO/2000/034118A1
A marine propulsion unit comprises a cowl (10), a propeller shaft (4) mounted on the cowl, and a propeller mounted on the propeller shaft. The propulsion unit can be mounted on a boat simply by attaching the cowl (10) to the hull of the ...  
WO/2000/019099A1
A device for moving a liquid or a gas, which includes a framework (1), at least one influencing member (2) intended for influencing said liquid or gas, and an arrangement for moving the influencing member in a movement in relation to the...  
WO/2000/018641A1
The invention concerns a load-bearing structure such as a wing provided with serrated plates (16) on its free edges for breaking tip vortex generated in those places by distributing the fluid pressure. The vortex dissipation is accelerat...  
WO/2000/013966A1
The device serves for the propulsion of a boat and has a propeller and a gearbox housing (1). Said gearbox housing (1) is fitted with a rounded tapering end segment (4). The end segment (4) has an extension having at least in certain are...  
WO/2000/001575A2
There is disclosed a multi axis marine propulsion system in which one or more propulsion fins are mounted on a boss (7) rotatable by a drive shaft (1). The fins are each rotatable about a rotational axis which is displaced laterally from...  
WO/1999/065766A1
A propulsion blade retraction and pitch control apparatus includes a hollow primary drive shaft (28), a pitch control gear assembly (38) mounted, within a propeller hub (16), to the primary drive shaft (28), a radially spaced array of pi...  
WO/1999/058395A1
The invention relates to a water craft having at least one, preferably a number of endless buoyancy body configurations (11) which rotate in the manner of a crawler track of a crawler vehicle. Said configuration submerges far enough into...  
WO/1999/057007A1
A hydrofoil device is useable as a hydrofoil wing, propeller blade, etc. In a water flow, a relatively lower pressure is generated on a second surface (94) of the device compared with a first surface (96). Near the trailing end of the fi...  
WO/1999/052770A1
The invention relates to a propeller where owing to the construction the airflow spilling round the blade tip is prevented. The propeller comprises a hub (12) and blades (14, 15, 16, 17) extending from the hub (12). The outer blade tips ...  
WO/1999/042654A1
The end edge of a turbo-machine, in particular the headbox of a paper machine, is characterised in that a number of individual threads (5; 15) are arranged in the stall area. Also disclosed is a process for reducing disturbances in the p...  
WO/1999/039973A1
A propulsion system for a water craft has at least one shaft (1) extending rearwardly from the transom (2) of the hull (3) of the craft and a drive system (9, 10, 11) for driving the shaft(s). A surface piercing propeller (4) is mounted ...  
WO/1999/029568A1
Machine-driven propulsion system for vessels where the propulsion force arises from a high-speed vane wheel having cup-shaped vanes open in the direction of rotation. The vane intake is provided with a cutting edge which penetrates down ...  

Matches 601 - 650 out of 2,737