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JP2023145531A |
To provide a propeller used in, for example, an aircraft, a vessel, a turbine, an unmanned aircraft, and an air circulation device.A propeller includes means for creating fluid flow in a non-axial direction and redirecting it in an axial...
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JP7352522B2 |
To provide a water surface moving object advantageous for controlling an attitude of a body unit floating over water with high accuracy.A water surface moving object moving in a state where a body unit is made to float from a water surfa...
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JP7340242B2 |
To provide a ship propeller with the blades firmly attached to a boss, and to provide the ship propeller in which no delamination occurs between fiber sheets in a bend part, even if the blade is made of a fiber-reinforced plastic and the...
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JP2023112622A |
To provide a propulsion performance enhancement device capable of preventing the generation of swirl flow in a propeller wake flow and of improving propulsion efficiency for a ship comprising a propeller propulsion unit.For a fin mounted...
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JP7315647B2 |
It is provided a method of manufacturing a propeller having a plurality of blades, each of the plurality of blades having an intake portion, an exhaust portion, and a tip portion extending from the intake portion to the exhaust portion, ...
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JP2023530256A |
Apparatus, method and computer program for controlling propulsion of a vessel. Propulsion is provided by a foil-wheel propulsion system. The method includes receiving 602 wheel operating conditions from a wheel drive, receiving 604 a plu...
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JP2023530263A |
A method of controlling a propulsion system (102) of a marine vehicle (100) by a controller (112), comprising a variable angle wake field (W(θ)) affecting at least one foil (108, 108') and A method of forming data on the pitch angle (γ...
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JP2023096303A |
To provide a hull structure of a multi-hull ship capable of improving maneuverability and of controlling attitude.A multi-hull ship comprises: a first hull 2A; a second hull 2B arranged in parallel with the first hull; a first propeller ...
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JP2023527750A |
The present invention relates to a variable pitch propeller capable of changing the blade pitch according to the operating conditions of a ship, and in particular, the size of the hub is adjusted so as to have a high propulsive efficienc...
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JP2023527023A |
At least one rudder (21) and at least one accommodation space (22) for a propeller (30) are formed in front of the rudder (21) in the direction of travel (F) of the vessel (100) in this configuration. Forward of propeller (30) storage sp...
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JP2023525163A |
Disclosed is a propulsion unit for propelling a ship. The propulsion unit includes a body configured to be located on the keel of the ship and including a pivot point, a fin movably disposed relative to the body, and an actuator assembly...
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JP2023074026A |
To provide a technology in the present invention that a submersible robot can three-dimensionally move using the propulsion by the micro-vibration at the interface between an oscillator and liquid.A submersible robot of the present inven...
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JP7278746B2 |
To provide an aquatic plant cutting vessel with great propulsion force and capable of moving at a relatively high speed while using propulsion by paddle wheels.A pair of paddle wheels 10 used for propulsion of a vessel comprises: a paddl...
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JP7265676B1 |
[PROBLEMS] To provide a caterpillar propulsion type high-speed boat which allows safe boarding and alighting, whose caterpillar is less susceptible to damage due to waves, and which is capable of high-speed sailing. A drive sprocket that...
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JP2023040320A |
To provide a power transmission mechanism capable of more easily suppressing inflow of liquid into a drive unit.A power transmission mechanism 1 utilized in sea water 2 includes: a drive unit 10 for generating power; a container 20 stori...
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JP7222531B2 |
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...
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JP7219960B2 |
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...
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JP2023003605A |
To provide a fluid machinery capable of stably cooling a motor to rotationally drive the propeller on a rear stage.A fluid machinery comprises a shaft part, a shroud provided to surround the shaft part and having an inner circumferential...
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JP7202389B2 |
Various aspects provide for a propulsion system (200) for a ship (100) comprising at least first and second thrusters (205, 206) and first and second directors (220, 720), wherein a computing platform (300) is coupled to the thrusters an...
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JP2023002211A |
To provide a propeller obtaining both of rattle sound suppression and shift shock suppression and a vessel propeller including the same.A propeller 22 includes a bush 41, a propeller body 42, and a propeller damper 45. The bush 41 includ...
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JP7198770B2 |
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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JP2022191904A |
To reduce economic load of maintenance by suppressing early deterioration, damage, or function deterioration in a part having shock absorption function such as a damper.A propeller unit 21 includes: a propeller 22; a cylindrical member 3...
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JP7193817B2 |
Provided is a rice paddy weed-killing apparatus with which it is possible to further improve rice paddy weed-killing effectiveness. This rice paddy weed-killing apparatus (100) is propelled by an underwater screw propulsion mechanism (40...
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JP7178188B2 |
To provide a rudder system improved in propulsion efficiency.A rudder system includes one propulsion propeller 20 rotating clockwise at a viewpoint looking at bow side from stern side, and a rudder 10 installed on an axial line of the pr...
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JP2022546069A |
The present invention primarily relates to the field of marine propellers and their noise. In one embodiment, the propeller includes a hub having a central axis, a proximal end attached to the hub, and one or more blades having a blade l...
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JP2022161762A |
To provide a marine propeller propulsion device for feeding an effective supply amount of gas to rear of a marine screw propeller.A marine propeller propulsion device 1A includes: a double axis shaft 2A enabling feeding of gas to a draft...
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JP2022543880A |
This document relates to the maritime field. In particular, the present invention is a device (100) for moving a water vehicle, comprising a first inlet portion for liquids, called upstream end (50a), and a first inlet portion for liquid...
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JP2022154737A |
To suppress an occurrence of a swirl in a wing end of a blade and an increase in frictional loss occurring during propulsion of a vessel.A vessel propulsion device for propelling a vessel comprises: a duct provided below a hull of the ve...
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JP7146437B2 |
To suppress a water flow separation from a blade surface of a propeller blade.A ship propeller comprises a propeller boss, multiple propeller blades extending radially outward from the propeller boss, and multiple short blades extending ...
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JP7144001B2 |
To provide a propulsion unit capable of suppressing a cavitation generation and generating a high propulsive force.A propulsion unit 10 of the present invention sucks fluid from a suction side and discharges it from a discharge side, and...
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JP2022140948A |
To improve propulsion efficiency of a vessel propulsion device including a duct and a propeller arranged to be capable of rotating in the duct.A vessel propulsion device for propelling a vessel includes a plurality of ducts lined up on t...
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JP7114349B2 |
To provide a vessel propeller and a processing method for the same capable of improving sound depression effect by depressing exciting force in each position by preventing separation vortex from connecting by being aligned in a radius di...
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JP2022530995A |
The present invention relates to a propeller. The propeller is intended to be fixed by a tightening method to a shaft having a drive outer shape extending in the axial direction. The propeller is composed of a plurality of elements, and ...
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JP7084053B2 |
A ship setting a small duct of the present invention includes a propeller 10 and a duct 20, a propeller load condition of the ship's hull 1 in an actual sea is set to 1.0 or more and a vortex resistance of the ship's hull 1 in the actual...
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JP2022067099A |
To provide a screw which is efficient, and/or further reduces mortality rate of fish, and/or further reduces noise, and/or further reduces cavitation phenomenon.A vessel screw, a pump screw, or a turbine screw to be used in water or in o...
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JP2022519972A |
It is a transport floating body structure formed by a tandem device (2) of a plurality of rotating bodies that reduces forward resistance during navigation, and the tandem device (2) of the plurality of rotating bodies is a forward rotat...
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JP2022518332A |
A device that reduces resistance to forward movement of a ship (2) during navigation, comprising at least one rotating body (1) that rotates in synchronization with the forward speed of the ship (2), said at least one rotating body. (1) ...
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JP7002448B2 |
It is provided a method of manufacturing a propeller having a plurality of blades, each of the plurality of blades having an intake portion, an exhaust portion, and a tip portion extending from the intake portion to the exhaust portion, ...
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JP7010475B2 |
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...
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JP7008584B2 |
To provide a blade suppressing an occurrence of a cavitation and a rotor provided with the blade.A blade provided on a rotor rotating in liquid includes a portion with hydrophobic processing on a pressure surface of the blade and a porti...
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JP6995354B2 |
To be able to improve sufficiently propulsion efficiency by simultaneously realizing a rectification effect and a thrust generation.A stator fin (20) generates a swirling flow in the inverse direction of the rotational direction of a pro...
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JP6982948B2 |
To provide a water quality improvement device capable of improving water quality in a closed water area by suppressing the generation of a large quantity of floating cyanophyceae in the whole closed water area such as a dam, a lake and t...
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JP2021188513A |
To provide a rotor with further improved performance.A rotor comprises a rotational shaft extending along an axial line, and a plurality of blades 2 protruding radially outward from the rotational shaft and arranged at intervals in the r...
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JP6978426B2 |
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JP2021182092A |
To provide an underwater silencer which suitably reduces noise propagating in water with a simple configuration.In a ship 1, an underwater silencer 10 includes a shroud portion 14 which at least partially surrounds a noise source 12. The...
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JP2021138280A |
To reduce the possibility of occurrence of an accident during propulsion in liquid.A disk-like robot 1 which is a propulsion device propelling in liquid includes: fin muscle units 10 which are a plurality of stick-like members with each ...
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JP2021127079A |
To provide a motor-driven propulsion device for a vessel capable of having both maneuverability at low speed navigation and output performance at high speed navigation, and capable of being driven while reducing energy consumption accord...
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JP2021104714A |
To provide a ship propulsion device which can inhibit limitations from being imposed on a steering angle.A ship propulsion device 100 includes: a duct 3 including a stator part 30; a propeller part 4 including a rim 40 having a rotor par...
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JP2021104715A |
To provide a ship propulsion device which can inhibit limitations from being imposed on a steering angle.A ship propulsion device 100 includes: a duct 3 including a stator part 30; a propeller part 4 including a rim 40 having a rotor par...
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JP6893839B2 |
To provide a drawing management system capable of correctly managing a drawing on a design of a ship.The drawing management system includes: a drawing acquisition part for acquiring drawing data of a drawing on a design of a ship; a cand...
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