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WO/2015/100127A2 |
An open core continuous helical fin marine drive system for use with surface and subsurface marine vessels has a cylindrical fluid container nested within a nacelle enclosure having an intake port and an exhaust port tailpipe. The cylind...
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WO/2015/094022A1 |
Proposed are original airfoils that significantly enhance the aerodynamic qualities of screw propellers. The advantage of air and water vehicle propellers manufactured on the basis of the proposed airfoils with a sharp leading edge is th...
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WO/2015/092095A1 |
The invention relates to an aquatic vehicle with propulsion by kicking, which includes a flotation element (1) provided with a propulsion mechanism (2) which is formed by at least one fin (4) located on the bottom at the rear and which i...
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WO/2015/088806A1 |
A replaceable nose section (100) for a marine propulsion unit (20) is disclosed. The marine propulsion unit (20) includes a lower gear case (30) that extends into the water and includes a lower portion (60) that includes a shaft section ...
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WO/2015/085071A1 |
A watercraft comprises a motor, an inertial mass, and a fin. The motor oscillates the inertial mass about an axis, producing a torque reaction on and oscillation of the motor. Oscillation of the motor is communicated to the fin, producin...
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WO/2008/095259A9 |
A blade for a marine propeller includes an adjustment strip located in a channel near the trailing edge of a high pressure face of the blade. The adjustment strip protrudes from the blade face, altering the hydrodynamic properties of the...
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WO/2015/055210A1 |
The present invention relates to a folding propeller (1) for a boat, e.g. for a sailboat or a multihull yacht, where said folding propeller (1) comprises a hub (2) for directly or indirectly fastening at a driveshaft connected to a motor...
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WO/2015/031288A1 |
A marine pod breakaway connection includes a breakaway connector connecting ends of a vertical shaft in an upper housing section and a vertical shaft in a lower housing section. The breakaway connector is configured to yield or fracture ...
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WO/2015/012706A1 |
The propeller has a drive shaft (1) with at least one blade (2) which is shaped in such a manner that its cross sections in a perpendicular plane to the axis of the shaft (1) in the medium acceleration zone are of a hooked shape, and the...
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WO/2015/003261A1 |
A curved body (830), for propelling fluids, crafts and harvesting fluid power, comprises a convex outer leading surface securely connected to a concave inner trailing surface to define an open vessel. Upon oscillation, ambient fluids are...
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WO/2015/006514A1 |
The present invention is a device and method of using the device for moving gases or liquids from one location to another. The device has at least one planar rigid blade; a crank for each planar rigid blade having two apertures the first...
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WO/2015/000572A1 |
The invention relates to a drive device equipped with a drive shaft and a propeller which is arranged on said drive shaft. The propeller comprises a propeller hub connected to the drive shaft, and at least two propeller vanes that are de...
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WO/2015/002882A1 |
A device for insertion in watercraft including propulsion means comprising a pair of flappers which oscillate through an arcuate path in a transverse direction with respect to the central longitudinal dimension of the watercraft. As inpu...
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WO/2014/199635A1 |
A propulsive force generation device (1) includes a cylindrical housing (10) which is open at both axial sides, a propulsion device body (20) which is disposed within the cylindrical housing (10), and a pair of fairings (40, 41) which is...
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WO/2014/197059A1 |
Void structures, systems and devices with void structures, and methods of fabricating void structures are disclosed. A void structure is disclosed with a repeating elongated-aperture pattern designed to provide negative Poisson's Ratio b...
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WO/2014/180605A1 |
The invention relates to a device (100) for reducing the driving power requirement of a watercraft, comprising a flow guiding surface (10) from which at least one first fin (20) projects. A first end of said first fin is fixed to the flo...
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WO/2014/173172A1 |
Disclosed is a paddle body, comprising a paddle hub and a plurality of blades connected to the paddle hub, wherein a rim is formed on an outer periphery of the blades, wheel teeth arranged in a circumferential direction are formed on an ...
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WO/2014/165121A1 |
A method for generating cavitation resistance in a liquid, a portion of which can be in contact with a surface is disclosed. The disclosed method can be carried out by pressure-treating the liquid, the liquid portion in contact with the ...
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WO/2014/154377A1 |
The invention relates to an underwater marine current power plant, comprising the following features: • a water turbine (1); • a generator (3) drivingly connected thereto; • a nacelle (5) with a housing for accommodating water turb...
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WO/2014/154024A1 |
A carrier system using a propulsion method using reaction wings comprises at least one reaction wing wing assembly consisting of a reaction wing structure (1) capable of circular motion and other associated structures, as well as at leas...
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WO/2014/125881A1 |
The present invention is an invention of a propeller wake flow straightener device, in particular, an invention of a rudder horn that is installed posterior to a propeller of a ship and swingably supports a rudder. A streamlined bulge se...
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WO/2014/123397A1 |
A propulsion device for a ship is introduced. The propulsion device for the ship comprises a duct having a nose corresponding to the front vertex of a hydrofoil cross-section and a tail corresponding to the rear vertex of the hydrofoil c...
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WO/2014/119741A1 |
A two-pack-type primer comprising an epoxy resin, a MXDA (metaxylenediamine) Mannich-modified curing agent, gypsum (excluding crystalline gypsum) and a pigment (excluding gypsum), wherein the concentration of the gypsum and the pigment i...
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WO/2014/111844A1 |
An outboard propulsion system for vessels comprises a supporting structure (4) to be anchored to the transom wall (5) of the vessel and a plurality of propellers (3) carried by the supporting structure (4). Each propeller (3) is associat...
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WO/2014/089704A1 |
In one embodiment, a propulsion device for use in a fluid may include a crank- slider mechanism having one or more cranks, one or more connecting rods, a mast, and one or more slide structures. These structures may be arranged so that ro...
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WO/2014/092560A1 |
The invention relates to a floating structure (1) comprising hull (3) and a work structure (4) for supporting, lifting or lowering elongate objects (5, 16, 17). The work structure comprises an elevating platform (25) having an opening (2...
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WO/2014/086221A1 |
Disclosed are a floating-type propeller (P) with a helical cavity and a ship equipped with the propeller, the propeller (P) comprising a helical cavity (4), wherein a shaft hole is provided on the central axis of the helical cavity (4); ...
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WO/2014/078111A2 |
A human propelled watercraft having a pair of flexible fins extending into the water each adapted to oscillate through an arcuate path in a generally transverse direction with respect to the central longitudinal dimension of said watercr...
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WO/2014/072692A2 |
A band with an airfoil profile that follows a continuous path like a wave substantially in the plane of a virtual disc moving around the circumference between it and a common radial offset such that when the band rotates about the disc's...
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WO/2014/068771A1 |
A ship propulsion device (1) in which a fin (6) is provided to a propeller boss cap (5) attached to the rear side of a propeller boss (2) of a screw propeller and the fin (6) is disposed the rear of the space between propeller blades (3)...
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WO/2014/058353A1 |
The invention relates to the field of air, above-water and underwater transport, in particular to airscrews for aircraft, helicopters and above-water vehicles and to marine propellers for above-water and underwater vehicles and can be us...
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WO/2014/042296A1 |
Disclosed is a propeller boss cap comprising fins, in which a plurality of fins are arranged in the boss cap to improve propulsion efficiency and reduce hub vortex cavitation. The propeller boss cap of the present invention is configured...
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WO/2014/026993A1 |
A ring propeller (12) for a thruster (10) is described. The ring propeller (12) comprises a ring (15), a centre element (16) and at least one propeller blade (18) extending between and attached to the centre element (16) and the ring (18...
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WO/2014/020548A1 |
THIS invention relates to a propeller and more particularly but not exclusively, to a propeller for use with inboard and outboard boat engines. The propeller includes a hub and a plurality of blades extending radially outwardly from the ...
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WO/2014/020551A1 |
THIS invention relates to a propeller and more particularly, but not exclusively, to a propeller for use with inboard and outboard boat engines. The propeller includes a hollow hub and a plurality of primary blades extending substantiall...
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WO/2014/020550A1 |
THIS invention relates to a propeller and more particularly but not exclusively, to a propeller for use with inboard and outboard boat engines. The propeller includes a hub, and a plurality of blades, each blade having a blade face, a bl...
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WO/2014/011269A2 |
A middle support member is used to provide axial support and control to the tie shaft. The middle support member includes a high pressure compressor coupling nut that applies a preload that allows the high pressure compressor stack to be...
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WO/2013/188285A1 |
A vertical takeoff and landing craft that utilizes lifting, propulsion and maneuvering (LPM) assemblies comprising a series of blade foils arranged along track elongated loop paths disposed at the sides of a fuselage. These LPM assemblie...
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WO/2013/187785A1 |
The invention relates to a nautical propulsion mechanism, which comprises a fastening framework (10), two half axles (2), two drive wheels (1), guide rods (5), frames (7), and wheel blades (8) and is characterized in that the half axles ...
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WO/2013/183994A1 |
A ship screw, pump screw or turbine screw for use under water or another liquid, comprising a front side and a rear side, wherein water or another liquid is forced from the front side to the rear side in use, and comprising a hub and at ...
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WO/2013/174804A1 |
A propulsion mechanism (100) for a maritime vessel (200) including a rotor (75) mounted for rotation about a rotor axis. The rotor (75) includes a plurality of vanes (20) extending essentially radial to the rotor axis and the vanes are a...
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WO/2013/135798A1 |
The invention relates to a ship drive having a hubless propeller, comprising the following components and characteristics: - a rotor (1) having a rotor ring (3) made of carbon steel; - a plurality of rotor blades borne by the rotor ring,...
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WO/2013/135796A1 |
The invention relates to a ship drive having a hubless propeller, comprising the following components and characteristics: - a rotor (1) having a rotor ring (3) made of carbon steel; - a plurality of rotor blades borne by the rotor ring,...
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WO/2013/137363A1 |
Provided is a marine propeller that strikes a favorable balance between suppressing the occurrence of cavitation at blade tips and avoiding stress concentration in propeller blades. Two inflection points are provided to a rake distributi...
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WO/2013/135417A1 |
The invention relates to a propeller for a turbine or for a ship, comprising the following features or components: a rotor with a hub body; rotor blades with journals which are borne by the hub body; a drive shaft for pivoting the rotor ...
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WO/2013/127928A1 |
The ship comprises a hull (200), at least one propulsion unit (100) comprising a propulsion engine (30), transmission means (40), at least one propeller (50) connected via the transmission means (40) to the propulsion engine (30), and a ...
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WO/2013/123639A1 |
A paddle wheel propelling device with movable blades relates to a ship propelling device technical field. The propelling device comprises a blade driving shaft (1), a blade swing arm is provided on the blade driving shaft (1), and a blad...
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WO/2013/115658A1 |
A propeller blade surface where the surface is at least a section of the surface traced out by a radius of a sphere to a loxodrome on the surface of the sphere. The flow through a propeller disc using such blade surfaces provides a flow ...
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WO/2013/113681A1 |
The invention relates to a method for the operation of a marine propeller (1) comprising the following steps: - detection, by means of a sensor (11), of noise on a solid body (1, 4, 8) caused by gas cavitation and/or pseudocavitation, - ...
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WO/2013/079584A1 |
The invention relates to a lateral jet thruster, comprising a tunnel (2) which is formed in a hull (1), extends traversely with respect to the longitudinal axis (L) of the hull (1) and in which a lateral jet propeller (4), which is driva...
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