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Matches 1 - 50 out of 3,219

Document Document Title
WO/2020/178431A1
The present invention relates to a method for protecting surfaces of components against cavitation erosion and components provided with such cavitation protection surfaces, wherein in the surface a plurality of microcavities is provided ...  
WO/2020/178850A1
The present invention relates to an underwater device capable of propelling and self-charging at the air and surface of water. Present invention more also capable of propelling inside water and surface of water. The pair of wings are pro...  
WO/2020/167643A1
An amphibious vehicle comprises a buoyant hull, a boat motor affixed to the hull to propel the amphibious vehicle in water, two or more powered wheel assemblies affixed to the hull to propel the amphibious vehicle on land, and two or mor...  
WO/2020/162766A1
The present invention relates to improving the efficiency of a helical fan/pump/propeller/turbine such as is described in PCT/NZ2018/050010. Further to the discovery that specific longitudinal limits are critical to define the first open...  
WO/2020/152502A1
The present invention relates to a propulsion module (1) for generating wave-like motion in liquid. The propulsion module (1) comprises: a motor (7) for generating rotational motion; a set of conversion devices comprising a first convers...  
WO/2020/145115A1
According to the present invention, a palm 3 is provided with a tapered hole 34 of which the inside diameter decreases toward the radially inward side, and a through-hole 35 that extends radially inward from the bottom surface of the tap...  
WO/2020/138006A1
A ship propeller 1 is provided with a boss 2 having a groove part 21 formed in an outer peripheral surface, and a blade 3 having a base part 31 formed on one end side, wherein the ship propeller 1 is constructed by inserting the base par...  
WO/2020/126933A1
The invention relates to a cycloidal dynamic propulsion or positioning system (100) for a ship sitting in water exhibiting a direction of flow and comprising a chassis, a rotor (102) mounted with the ability to rotate on the chassis abou...  
WO/2020/118385A1
An underwater parachute propulsion system consists of an unmanned vessel (3), pulley (6), rope (13), parachutes (1), ropes (5), winch (4), crane (17) and ship (2). The idea is to enable a ship which will for generation of propulsion forc...  
WO/2020/120824A1
A cycloidal marine propulsion unit (1), comprising a hollow rotary casing (2) having a central axis (2a) and defining a central inner space (2b) with an opening (2c) at an axial end thereof. A mounting body (3) rotatably supports the rot...  
WO/2020/120826A1
The disclosure relates to a drive arrangement (1 ) for a cycloidal marine propulsion unit (2). The drive arrangement (1 ) comprises at least two electrical blade motors (3a) each associated to a respective blade (3) for pivoting thereof,...  
WO/2020/104781A1
A foil, such as an aerofoil, having a leading edge and a trailing edge, of which at least a portion of one or both of the leading edge and trailing edge has a serrated profile comprising a plurality of adjoining teeth, each tooth having ...  
WO/2020/101554A1
Fluke drive system, comprising a flexible fluke (600) and a fluke driving mechanism comprising a displacement means (601) arranged to be driven to move reciprocally upwards and downwards, which fluke (600) is connected to the displacemen...  
WO/2020/101553A1
Fluke drive system for a vessel (100), comprising a pivot element (114) having a forward end and an aft end, which pivot element (114) is pivotally connected at the forward end to a hull (101) of the vessel (100) and which pivot element ...  
WO/2020/101552A1
Fluke drive system for a vessel (200), comprising a pivot element (228) having a forward end and an aft end, which pivot element (228) is pivotally connected at the forward end to a hull (201) of the vessel (200) and which pivot element ...  
WO/2020/092643A1
Techniques are disclosed for systems and methods to provide graphical user interfaces for assisted and/or autonomous navigation for mobile structures. A navigation assist system includes a user interface for a mobile structure comprising...  
WO/2020/071929A1
In summary, the application relates to a device that propels a swimmer to move on the surface of, or below, water, allowing said swimmer to rise, descend or turn around their axis. The device allows a large degree of movement in the wate...  
WO/2020/072936A1
An apparatus for cleaning nets underwater formed from a propeller housing with a centrally disposed axis with a plurality of blades (14) extending therefrom. An outer perimeter ring (18) secured to an outer tip of each blade (14) with a ...  
WO/2020/055396A1
Provided herein is a spar cap having a profile for guiding and receiving a shear web for wind turbine blade. Particularly, the present disclosure provides a pultruded spar cap having a bond gap feature to maintain a uniform space for dis...  
WO/2020/055221A1
The present invention relates to bladed propellers for operating in a fluid medium and can be used in the form of fans and in the drives of self-propelled vehicles (ground vehicles, above-water and underwater vehicles, and aircraft). The...  
WO/2020/044043A1
A propeller has a hub (1) and a plurality of radially-extending propeller blades (3) each having a mounting flange (4) seated on the hub. The blades are held to the hub by first and second axially-spaced clamping rings (9) and (10) which...  
WO/2020/031200A1
The present invention relates to an underwater device particularly capable of propelling in the water. The present invention more also relates to an improved underwater device with an additional Revolving spine balancer unit arrangement ...  
WO/2020/025753A1
Cavitation monitoring system and a pod driver, comprising: a pressure sensing device, disposed on the surface of the rudder body of the pod driver sensing pressure on the surface of the rudder body; and a processing unit, configured to, ...  
WO/2020/008238A1
A Shaft-less propeller is used in turbines, pumps, and propulsion system. Blades of a Shaft-less propeller are mounted within a cylindrical shroud. Complex propeller design could be shaped and constructed from advanced composites, metals...  
WO/2019/212385A1
The invention relates to ship propellers and submersible device propellers. The technical result consists in increasing the efficiency of a screw propeller. The essence of the inventions consists in that, in order to generate a screw pro...  
WO/2019/194350A1
A propeller for a ship according to an embodiment of the present invention comprises: a hub; a blade protruding in a radial direction from the hub; and a fin protruding from the edge of the blade.  
WO/2019/184707A1
A paddle wheel propelled hovercraft, comprising a hull (1), a power system, a hover system, and a propelling system. Said hover system comprises a hover fan (10) and an apron (3). Said propelling system comprises a pair of paddle wheel p...  
WO/2019/173873A1
The present invention relates to a cavitation free rotary mechanical device with improved output and, in particular, to a rotary mechanical device (such as a hydro turbine, marine propeller, etc) including a rotatable shaft and associate...  
WO/2019/173825A1
A subsurface diver transport vehicle includes a vehicle body and at least one propulsion device. The vehicle body incorporates a number of individual mission modules mechanically assembled together to define a substantially continuous hu...  
WO/2019/146712A1
A propeller 1 for a ship is provided with: a boss 2 having grooves 21 formed in the outer peripheral surface 2s thereof; and blades 3 having bases 31 formed on the base end sides thereof, and is configured by inserting the bases 31 of th...  
WO/2019/099885A1
Underwater robotic systems are disclosed. In some instances, a robotic system may include a body, a flexible fin, and a rotatable mass associated with the body such that angular acceleration of the rotatable mass causes a reaction torque...  
WO/2018/080699A8
A propeller blade (18) spanning radially from a root (32) to a tip (34) and spanning axially from a leading edge (36) to a trailing edge (38) spaced from the leading edge forming an airfoil (39) therebetween where a sweep line (62) can b...  
WO/2019/090189A1
Embodiments of the present invention are directed to a modular, biomimetic, underwater vehicle capable of propulsion using one or more tail undulation methods, such as anguilliform or carangiform propulsion methods.  
WO/2019/088696A1
An apparatus for enhancing propulsion efficiency is disclosed. An apparatus for enhancing propulsion efficiency according to an embodiment of the present invention comprises: a duct disposed in front of a propeller and having an arc shap...  
WO/2019/083490A1
The claimed technical solution belongs to systems intended for setting a body in motion and can be applied in air and water carriers. The drive has a piston with the blades which are used to repulsion the body from environment. Among the...  
WO/2019/063120A1
The invention relates to a continuous-flow machine for energy transmission between a flowing fluid and a drive or output shaft on which a motor is arranged, which can also be used as a generator. In known systems for energy production, t...  
WO/2019/056598A1
Disclosed is a water recreation device capable of being driven by manpower, comprising a floating body part (1) suitable for a human body to lie prone, a paddling assembly (3) swingably connected to one end of the floating body part (1),...  
WO/2019/050570A1
A method and system for providing a watercraft device are disclosed. The watercraft device comprises a board, a throttle coupled to a top surface of the board, a hydrofoil coupled to a bottom surface of the board, and an electric propell...  
WO/2019/049902A1
Provided is a rotor blade that is configured so as to gather a fluid from both a blade root and a blade end of a blade toward the center along the length direction of the blade, allow a large quantity of the fluid to pass toward the trai...  
WO/2019/041562A1
Disclosed is a bionic robotic fish, comprising a head (11), a trunk (21) and a tail (31), wherein the head (11), the trunk (21) and the tail (31) are integrally connected by means of a central shaft (90) penetrating through the head (11)...  
WO/2019/040116A1
A watercraft having a propulsion mechanism extending through an opening in the bottom of the watercraft having a propulsion mechanism adapted to be inserted in an opening in the bottom of a watercraft comprising a pair of pedals each cou...  
WO/2019/033080A1
An intentional fluid manipulation apparatus assembly with a first thrust apparatus that imparts a first induced velocity to a local free stream flow during a nominal operation requirement. The first thrust apparatus creates a streamtube....  
WO/2019/025667A1
Nautical sports board using the muscular force of legs and arms. More particularly, it is a nautical device (1) allowing a user equipped with a paddle to move on water, comprising: a) two parallel floats (2, 3) separated by a space (7), ...  
WO/2019/027126A1
A duct-type ship energy reducing device according to an embodiment of the present invention comprises: a duct disposed to surround a part of the rear protruding part of a ship; and a support part for connecting the rear protruding part t...  
WO/2019/019011A1
A steering oar structure of a dredger, comprising a gearbox (1) connected to a dredger body, and a hub (2) rotatably provided on the gearbox (1). At least one first cutter (3) is provided at one end of the gearbox (1) and approximate to ...  
WO/2019/014873A1
Disclosed is a propeller for a dredger, the propeller comprising a gearbox (1) connected to a hull, and a propeller hub (2) rotationally arranged on the gearbox (1), wherein the outer circumference of the propeller hub (2) is provided wi...  
WO/2019/016171A1
The invention relates to a propeller for a water vehicle, comprising a hub (12, 112, 212, 312) and at least two blades, said blades extending outwards from the hub (12, 112, 212, 312) in the radial direction, and the propeller having a u...  
WO/2019/010651A1
An anti-winding propeller for a dredger, comprising a gear box (1) connected to a dredger body and a hub (2) rotatably arranged on the gear box (1). At least one first cutter (3) is arranged at one end of the gear box (1) and near the ed...  
WO/2019/013836A1
An apparatus for adjusting a human propelled watercraft having a pair of flexible fins extending into the water. The invention allows the user to easily adjust the propulsion device to match the user's leg length. The invention consists ...  
WO/2019/012168A1
The invention relates to a system for propelling ships by means of tubes having respective helical mechanisms inside, of different gauges, which propel the water through said tubes in a turbulance-free manner and at great speed, and char...  

Matches 1 - 50 out of 3,219