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Matches 1 - 50 out of 3,050

Document Document Title
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...  
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...  
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...  
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 ...  
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...  
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...  
WO/2017/205680A1
A propeller having a means for creating fluid flow in a non-axial direction and redirecting it in an axial direction.  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
WO/2017/179888A1
The purpose of the present invention is to provide a paddleboard which is provided with a fin operating using the principle of the lever and thus does not require a large force to gain momentum, thereby allowing even women and children t...  
WO/2017/167555A1
A propeller propulsion system (1) for a watercraft is described, said system comprising at least one electric motor (2) and a propeller (3) which can be driven by the electric motor (2). The propeller (3) is a surface piercing propeller....  
WO/2017/168359A1
In a rotating machine having a fluidic rotor, the rotor comprises at least one blade mounted on an arm rotating about a rotor shaft forming a main axis of the rotor, the rotor being held by a supporting structure in an orientation such t...  
WO/2017/168549A1
This ship propulsion device is equipped with an energy-saving appendage 5 which is located forward of a propeller 1 and which has a curved surface having a radius R smaller than the radius r of the propeller 1. The pitch of the blades 3 ...  
WO/2017/157641A1
The invention relates to a method for adapting the frequency of a propeller (10), in which the propeller (10) comprises at least one propeller blade (30) that has at least one blind hole (50), one first body being inserted into at least ...  
WO/2017/158203A1
Various aspects provide for a lifeboat ramp configured to convey lifeboats off a ship. The ship may have a large area propeller, which may be disposed below, or even aft of, the transom. A director (e.g., a rudder, nozzle, and the like) ...  
WO/2017/150299A1
The purpose of the present invention is to provide a horizontal axis rotor in which, rather than a fluid being pushed out by blades, a high-speed flow associated with a Coandă effect resulting from the rotation of the blades flows towar...  
WO/2017/140314A1
The present invention discloses 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,...  
WO/2017/125543A1
A device (100) has surfaces (21, 22, 23, 24) and an anti-biofouling system (10) comprising at least one light source (11, 12) for performing an anti-biofouling action on at least a majority of the surfaces, the at least one light source ...  
WO/2017/108838A1
A ship may comprise a propeller proximate to the hull. A compliant surface may be coupled to a decoupled portion of the hull. The compliant surface may move in response to imparted loads, which may reduce the transmission of undesired lo...  
WO/2017/108255A1
The invention relates to a propeller (1) having a propeller blade (2, 3), which has a shape (11) for forming an interlocking connection. A dovetail joint (11, 12), for example, is provided for forming the interlocking connection. A prope...  
WO/2017/099742A1
In one example in accordance with the present disclosure a system for preventing media misalignment during accumulation. The system includes a number of media clamps having multiple positions to prevent misalignment of an incoming media ...  
WO/2017/089643A1
According to an example embodiment, a method (300) for a marine vessel that employs a propulsion system including a propeller mounted to a rotatable shaft for converting rotative shaft power transferred from the shaft to the propeller in...  
WO/2017/082248A1
This ship propulsion device (100) is equipped with: a duct (1) which includes a stator (11); a propeller (2) which includes a rim (21) that has a rotor (23) disposed at a position facing the stator and blades (22) that are formed toward ...  
WO/2017/067968A1
The invention relates to an aerodynamic body (114) comprising a main part (122) that has an upper face (124) which is designed such that a fluid (128) flows (126) over the upper face in a flow boundary layer (130). The main part (122) ha...  
WO/2017/070413A1
A marine propulsion assembly (500) includes a propeller (502) having a threaded hub (505) whose threads are used for engaging with a drive shaft (501). The drive shaft includes both a first set of threads (507) and second set of threads ...  
WO/2017/048683A1
A blade includes a blade body having a surface and a hole extending through the surface of the blade body. The hole defines a hole axis and a plane perpendicular to the hole axis. The hole has an elongated hole perimeter within the plane...  
WO/2017/041773A1
The invention relates to a system, which whole system is based on alternately switched induction and the motion of coils that is triggered by said induction. For this purpose, the individual coil is brought into a permanent magnetic fiel...  
WO/2017/032721A1
A device for linear propulsion (1) comprises a support structure (2) for carrying a payload, and one or more wave propulsion modules (3). The or each wave propulsion module (3) comprises a first individually- pivoted substantially planar...  
WO/2017/021844A1
Machine (1) for transmitting energy to, or receiving energy from, fluids in general, has a containing structure (2) that receives an impeller (3) onto which a plurality of blades (4) is rotatably mounted that are suitable for transmittin...  
WO/2017/014953A1
A human propelled watercraft having a pair of flexible fins supported by a mast extending into the water each adapted to oscillate through an arcuate path in a generally transverse direction with respect to the central longitudinal dimen...  
WO/2017/015147A1
The apparatuses, methods and systems for harnessing fluid flow with flexible mechanical transducers include mechanisms that include flexible elements with strained deformations. In some implementations, oscillations of strained deformati...  
WO/2016/201556A1
This invention relates to propulsion systems. The Centrifugal Propeller is a dosed propulsion system with no external moving parts, other than a drive shaft, and has no external vents. The Centrifugal Propeller creates thrust by redirect...  
WO/2016/190822A1
The present invention relates to an airfoil-shaped medium so as to generate an aerodynamic force. The present invention more particularly relates to an airfoil of a wing, a propulsion system blade attachment or sailboat keel. For instanc...  
WO/2016/190784A1
The present device relates to boatbuilding, and more particularly to screw propellers with safety couplings, intended for use in outboard motors and/or marine screw propellers. A screw propeller with a safety coupling comprises a screw p...  
WO/2016/180998A1
The invention relates to a shark-simulating hydrodynamic diving suit with mechanical self-propulsion, comprising a neoprene suit, to which a carbon fibre structure is attached, consisting of a head and a back, joined by means of a retain...  
WO/2016/175340A1
The present invention provides an energy-saving duct for attaching to the stern of a ship, the circular duct being attached in front of a stern propeller of radius R, wherein the duct has a radius of 0.7R at the back end and an angle of ...  
WO/2016/153328A3
The present invention relates to SMAs (self-moving apparatuses) which use any type of propulsion means, including, without limitation, an FPGB (propeller-gear block) comprising an FP (propeller) and a drive for supplying power thereto. M...  
WO/2016/151318A1
A user propelled water board apparatus (2) is described and comprises a hull, porti.oxi (4) defining a longitudinal axis x-x. The hull portion (4) is buoyant, to enable a user (6) to rest on hull portion (4) and be supported on the surfa...  
WO/2016/147940A1
The purpose of the present invention is to provide a horizontal shaft rotor that is for use in a propulsion machine, that makes it possible to change the position of a blade of the horizontal shaft rotor such that the pitch angle thereof...  
WO/2016/144160A1
The invention relates to an apparatus for exchanging kinetic energy between a fluid and a structure moveable relative to the fluid and connected to the apparatus, comprising a channel enclosed by a channel wall connected with the structu...  
WO/2016/141394A1
The invention relates to a drive device for a surfboard, comprising movable elements for increasing the propulsion resulting from said drive device. Said elements are set in motion by the user of the surfboard. The user can thus travel t...  
WO/2016/140398A1
The present invention relates to an asymmetric wake generating vortex generator for reducing propeller noise and vibration, configured such that, by controlling a flow that is introduced into a propeller installed on a ship so as to redu...  
WO/2016/133382A1
The invention relates to a tugboat (1), comprising a single hull (2), a deck (3) and a towing system (4) having a base (5) connected to the deck, the base having a centre point (CP), and a cart (6) that is moveable over the base over 360...  
WO/2016/131877A1
A hub (3) of a rotor (9) for a fluid flow machine is provided with helical grooves (5) for attaching replaceable blades (15) to the hub. The grooves have sidewalls with rounded portions (35) adjacent to the bottom (33). The grooves can b...  
WO/2016/120145A1
The present invention generally relates to a turbine unit for a hydraulic installation, and more in particular it deals with the hub of the turbine unit. The present invention proposes to provide means for adjusting a gap extent formed b...  

Matches 1 - 50 out of 3,050