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WO/2019/009747A1 |
The invention relates to hydroelectric engineering, particularly to wave power units, and can be used for supplying power to populated areas and to businesses, and can also be used in shipbuilding as a power unit for floating devices. A ...
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WO/2019/004807A1 |
The invention relates to designs of rotating-blade cycloidal propulsive elements. A dual-rotation rotor for a cycloidal propeller comprises a primary rotor which rotates about its own axis and is kinematically connected to a drive shaft....
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WO/2018/223556A1 |
A marine reaction fin having reduced vibration, comprising a tail column (1) and a fin hub (2). The fin hub (2) sleeves on the tail column (1). The fin hub (2) is provided with a blade. The fin hub (2) is integrally formed with the blade...
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WO/2018/217675A2 |
An integrated jack plate and kick up bracket 100 is provided that is useful and safe even at relatively high boat speeds (e.g., in excess of 10 miles per hour). The bracket 100 uses a jack plate 106, 104 to raise and lower an outboard mo...
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WO/2018/216931A1 |
According to one embodiment of the present invention, a ship comprises: a hull; a propeller provided at the rear of the hull; and vortex generating fins respectively arranged at optimal points (Po) of the port and the starboard of the hu...
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WO/2018/206978A1 |
A propeller, impeller or mixer comprising at least one blade, the blade having a suction surface and a pressure surface which extend from a leading edge to a trailing edge of the blade and a radially-outer tip region, wherein five to one...
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WO/2018/195539A1 |
A cooling tower fan hub having a ring and a disc in which in which hollows and recesses are opened in the ring and/or in the disc in order to decrease fan natural frequencies and avoid excitation by the several kind of loads that affect ...
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WO/2018/191790A1 |
This disclosure relates to a system for reducing cavitation at a surface that moves relatively with respect to a first fluid. The system comprises a degasser configured to at least partially degas a second fluid. The system also comprise...
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WO/2018/179075A1 |
This propeller fan has a boss that rotates about an axial center and a plurality of blades disposed on the outer peripheral part of the boss. The blades have notches in the trailing edges thereof. The notches have three or more notched p...
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WO/2018/152623A1 |
An amphibious multi-terrain water planing vehicle including: a. a hull having a top, a bottom, a front end, a rear end, a first side and a second side; b. at least one track frame, in exemplary embodiments a pair of track frames, mounted...
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WO/2018/138477A1 |
A passively controlled fluid foil has a span; and a rigid spar extending in the spanwise direction,a cellular material and a flexible outer surface defining a profile of the outer surface of the foil and encapsulating the cellular materi...
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WO/2018/140548A1 |
A hydrofoil shield for protecting a boat motor includes a shield body, two fins, a nose section, and a tail section, wherein the shield body has a central shield portion with fins extending therefrom and the nose section disposed forward...
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WO/2018/134322A1 |
The invention relates to an underwater scooter (10, 10') for towing swimmers or divers, said scooter comprising a housing (11, 11') which accommodates at least one drive having a drive shaft (17) which protrudes from one end of the housi...
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WO/2018/130295A1 |
The present invention relates to a method of actuating a shape changeable member of actuatable material. The invention further relates to a shape changeable member and to a system comprising such a shape changeable member and a magnetic ...
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WO/2018/130410A1 |
The present invention relates to a method of actuating a shape changeable member of actuatable material. The invention further relates to a shape changeable member and to a System comprising such a shape changeable member and a magnetic ...
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WO/2018/132523A1 |
A paddle for use in propelling a watercraft. The paddle may have a blade that is configured for rotary movement and/or to function as an auto-gyro. The blade may have first and second blade members configured as hydrofoils that rotate ab...
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WO/2018/127909A1 |
There is provided a universal safety guard for a propeller of a trolling motor having a propeller end and a rear end, having an adjustable motor holder including a pair of oppositely-facing omega-shaped sections, where each section is di...
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WO/2018/111059A1 |
The invention relates to the field of transport by air and water and to power engineering, in particular to designs of bladed propellers. A rotating-blade propeller comprises a plurality of blades which are independently connected to spi...
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WO/2018/104420A1 |
This invention relates to a device and method), of reducing the azimuthal torque acting on a pulling pod unit or azimuth thruster (1) having a rotary pod housing (4) with a substantially vertical slewing axis (3A), a pulling propeller (7...
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WO/2018/094778A1 |
An oar propeller, comprising: an oar blade (1), an oar shaft (2), a position adjustment assembly (3) and a rotation shaft (4); the oar blade (1) is provided with a through-hole along a length direction of the oar blade (1), the oar shaft...
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WO/2018/086663A1 |
A folding propeller (1) with an adjustable rake angle has a hub (10) and at least three propeller blades (11) which are pivotally mounted in the hub (10) about pivot axes (25a) extending radially outwards from a central area in the hub (...
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WO/2018/080699A1 |
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...
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WO/2018/075214A1 |
An apparatus and system for a marine propeller assembly are provided. A forward retention member that may be used with the marine propeller assembly includes a planar base, a drive shaft engagement end opposite the planar base, and a con...
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WO/2018/075215A1 |
A marine propeller composite blade an axially extending composite blade root including a dovetail wound in a partial spiral or helix around a centerline. Dovetail tapering down in width between clockwise and counter-clockwise dovetail si...
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WO/2018/073493A1 |
According to an example aspect of the present invention, there is provided a marine propulsion system (1) comprising a first portion (4) and a second portion (5) of a set of movable foils, a movement mechanism (2) coupled to the first po...
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WO/2018/075166A1 |
An apparatus and system for a propeller assembly are provided. In one aspect, marine propeller assembly includes a plurality of circumferentially-spaced blades that each include a dovetail having a radially inner surface. The marine prop...
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WO/2018/075164A1 |
A blade member includes a leading edge, a trailing edge, and a blade body extending therebetween. The blade member also includes a dovetail, a transition region, and a transition relief. The dovetail includes a dovetail chord line extend...
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WO/2018/075216A1 |
An apparatus and system for a marine propeller assembly are provided. An aft retention member that may be used with the marine propeller assembly includes a base, an opposing nose and a conic body extending therebetween along a centerlin...
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WO/2018/075167A1 |
A propeller assembly is provided. The propeller assembly includes a central hub including a forward end, an aft end, and a hub body extending therebetween along an axis of rotation of the central hub. The propeller assembly further inclu...
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WO/2018/075163A1 |
A propeller assembly that includes a hub having an outer radial surface and a plurality of wedge retaining members removably coupled to the hub. The plurality of wedge retaining members are spaced circumferentially about the outer radial...
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WO/2018/067024A1 |
The utility model relates to boat building and can be used in the production of small floating craft, and also of vessels, equipped with propulsion units. An impulse propeller of a floating craft comprises a drive shaft which is arranged...
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WO/2018/065032A1 |
The present invention relates to a novel propeller for a marine vessel and a method of installing the hub cap to the hub. More specifically, the present invention relates to hub caps for use in connection with both fixed pitch and contro...
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WO/2018/059198A1 |
Disclosed is a marine propeller with detachable blades (1), the marine propeller comprising a propeller hub (2) and the blades (1). Cambered mounting plates (3) are connected to the bottom ends of the blades (1). A plurality of mounting ...
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WO/2018/029480A1 |
The invention relates to a drive system, and method of forming the same, for a craft in water, said drive system comprising a drive means, one or more shafts which are provided in connection with the drive means via one or more gear asse...
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WO/2018/026334A1 |
This invention relates to a water jet (A) which is used to have fun afloat or underwater such as in the sea, lake or pool but also used for fast intervention to negative events like accidents, injuries or drownings which can happen afloa...
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WO/2018/016932A1 |
The invention relates to designs of vane propulsors, or cycloidal propellers, operating in water and air environments. A mechanism for altering the blade pitch of a cycloidal propeller comprises a slide bar, which is able to slide along ...
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WO/2018/006613A1 |
Disclosed is a bionic robot fish, comprising a fish head (1), a fish body (3), a floating and diving mechanism (6) and a control system (7). The fish head (1) comprises an upper jaw (11), a lower jaw (12), an opening and closing mechanis...
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WO/2018/002383A1 |
A water vessel (101, 201) comprises a hydrofoil (111, 112, 211, 212) and an actuator system (150, 160) for driving the hydrofoil (111, 112, 211, 212). The actuator system (150, 160) and the hydrofoil (111, 112, 211, 212) are configured s...
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WO/2018/001685A1 |
There is provided mechanisms for for controlling movement of a propeller shaft on a vessel. A controller comprises processing circuitry. The processing circuitry is configured to cause the controller to detect movement of the propeller s...
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WO/2018/004389A1 |
The utility model relates to transport, and particularly to amphibious wheeled propulsors for use in water transport and in air-cushion vehicles. A wheel propulsor comprises a cylindrical rim, and blades in the form of radially-directed ...
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WO/2018/004493A1 |
This invention relates to high efficiency double pitch angle propellers, and is such that it has a propeller hub (2, 7); and two or more propeller blades (1, 6) with aerofoil-shaped cross-section (1a, 6a) fixed around the periphery of th...
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WO/2017/206612A1 |
A robot bionic mechanism, comprising a bionic flipper (10), a connecting rod (20), a fixed plate (30), a driver (40), and a top column (43). As a driving end, the driver (40) and the top column (43) are mounted on one side of the fixed p...
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WO/2017/205680A1 |
A propeller having a means for creating fluid flow in a non-axial direction and redirecting it in an axial direction.
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WO/2017/204751A1 |
The pedal drive mechanism for floating devices, which comprises pedals (12) mounted on pedal levers (7), which are rotatably mounted on one axle (6) and which actuate a rocking vane drive. The rocking vane drive comprises a rocker frame ...
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WO/2017/199724A1 |
A propeller 16 includes: a hub 42; a plurality of blades 44 radially extending from the hub 42; and a guard 46 connected to the respective outer ends 58 of the plurality of blades 44. The guard 46 includes: a first member 60 consisting o...
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WO/2017/198892A1 |
The propulsion unit (20) comprises a frame construction (21) having an upper portion (22) forming a support arm protruding from a hull (11) of the vessel (10) and a lower portion (23) forming a longitudinal compartment provided with a pr...
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WO/2017/200256A1 |
The present invention relates to an ultralight composite material propeller for an outboard motor, which is configured to comprise a hub and blade in a detachable manner so as to facilitate replacement when the propeller is damaged, and ...
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WO/2017/187746A1 |
Provided is a ship propeller comprising the following: a propeller blade including a blade flange; a hollow propeller boss provided with a blade-fixing hole; a disk that abuts the blade flange through the blade-fixing hole, that is faste...
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WO/2017/187597A1 |
An appendage 8 for reducing hub vortex is disposed, via a support body 7 extending from a hull 2, at the rear of a propeller (wing propeller) 4 which has no rudder disposed to the rearward thereof. The appendage 8 has a circular cross-se...
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WO/2017/178061A1 |
The present invention relates to a novel propeller for a marine vessel and a method of installing the hub cap to the hub. More specifically, the present invention relates to hub caps for use in connection with both fixed pitch and contro...
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