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JP2023051447A |
To correctly set a reference position of a rod driving part.An actuator comprises: a rod driving part that moves a rod, which is connected to a water flow direction change part for changing a direction of an ejection water flow and adjus...
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JP2023051450A |
To correctly control a water flow direction change part such as a reverse gate without disassembling a device for detecting a rotation amount of a motor.An actuator comprises: a rod driving part that moves a rod, which is connected to a ...
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JP2023044489A |
To prevent complication of an internal structure of a hybrid ship propulsion machine and inhibit deterioration of cruising performance of a ship during planing.A hybrid outboard engine 1 includes: an internal combustion drive propulsion ...
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JP2023041477A |
To provide a ship propulsion unit with a bent flow channel, capable of miniaturizing a propulsion unit and capable of suppressing thrust decrease by suppressing water backflow and vortex generation in a bent flow channel and by having su...
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JP2023011404A |
To provide a vessel lower frame support system, a vessel controller, and a method and a program for vessel lower frame support capable of achieving a safe and simple lower frame work for a vessel.A vessel lower frame support system for s...
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JP7210409B2 |
Provided is a motor-integrated fluid machine having an integrally provided motor, the motor-integrated fluid machine comprising: a rotating part that rotates about a rotary axis; an outer circumferential part provided to the outer circum...
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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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JP7199585B1 |
A trimaran for power generation of ocean currents is provided in which a propeller provided under the hull is rotated by an ocean current generated by a ship sailing while receiving strong wind with its hard sails, and electricity is gen...
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JP7195973B2 |
To suppress fluttering of a forward/backward switchover bucket at advancing.A forward/backward steering device includes: a steering duct 3 for having water injected from a nozzle 2 circulate inside and flow out by changing over between a...
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JP7170009B2 |
A built-in propulsion system (10) includes an engine (20), a diversion unit (30) with a diversion base (32) and an exhaust pipe (50), and a propulsion unit (72). The diversion base (32) is connected to the engine (20), having a water inl...
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JP2022546341A |
The present invention relates to propulsion systems comprising ducts and fluid flow generators. The duct has an elongated cavity with an inlet portion and an outlet portion. A fluid flow generator is disposed within the duct. A fluid flo...
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JP2022165714A |
To recover fine foreign matter in water without sacrificing power performance of a vessel propeller.A foreign matter recovery device is provided in a vessel propeller for imparting propulsion force to a hull. The foreign matter recovery ...
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JP2022165126A |
To lower water temperature in vicinity of sea water surface by enabling automatic navigation, having a simple construction and being rigid, and freely moving on the ocean.A device for lowering water temperature in vicinity of sea water s...
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JP2022157536A |
To provide a fluid machinery and an underwater sailing body which can be compactified.A fluid machinery comprises: a shank which extends in an axial direction; a shroud which is arranged covering the shank and which forms a fluid channel...
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JP2022157530A |
To provide a fluid machinery and an underwater sailing body which can be compactified while improving efficiency.A fluid machinery comprises: a shank which extends in an axial direction; a shroud which is arranged covering the shank and ...
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JP2022157533A |
To provide a fluid machinery and an underwater sailing body which can be compactified while improving efficiency.A fluid machinery comprises: a shank; a shroud which forms a fluid channel whose inner peripheral surface is reduced as it g...
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JP2022157540A |
To provide a fluid machinery and an underwater sailing body in which a shroud can be compactified.A fluid machinery comprises: a shank which extends in an axial direction; a shroud which is arranged covering the shank and which forms a f...
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JP2022140877A |
To provide a hydrofoil ship configured so as to be able to easily supply water to a water using device even during sailing.This hydrofoil ship comprises: a hull; a strut projecting downward from the hull; a hydrofoil horizontally extendi...
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JP2022539986A |
water ski A water ski (1) having a floatable ski body (2) and a control device (6) for setting the driving force is described, the ski body (2) being attached to a binding (3). ), there is also provided a traveling drive comprising a rot...
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JP2022117796A |
To provide a propulsion unit for a hydrofoil craft capable of improving take-off performance without complicating a structure.A propulsion unit 3 has a hydrofoil 5 placed in the water, and a waterjet propulsion unit 6 placed in front of ...
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JP2022112789A |
To provide a jet propulsion vessel increasing a degree of freedom of impeller layout for the jet propulsion vessel with a composition of driving an impeller of a jet pump driven by motor.A vessel comprises: a hull 12; a jet pump 28 with ...
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JP7109451B2 |
The invention relates to a swimming and diving aid, having a hull which comprises a flow channel or with which a flow channel is associated, a motor-driven water acceleration arrangement, in particular a propeller, being associated with ...
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JP7105455B2 |
The present invention discloses a mobile operating platform for a paddy field, including a body, a power generating device, a movement control system, a draft control system and an automatic leveling system, where the power generating de...
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JP2022091050A |
To provide a boat configured to be able to change trim depending on a detected state of waves.The boat comprises: a boat body; a wave detector that detects a state of waves generated on water level; a trim adjuster that adjusts trim; and...
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JP7079555B2 |
To provide a waterjet propulsion machine acting even when power generation ability of a main engine 920 is small by reducing difference between consumed power by an engine 951 and power generating ability of the main engine 920 by preven...
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JP7066842B2 |
The invention relates to an apparatus (1) for at least one user (2) for experiencing a virtual reality simulation in an underwater world, comprising:at least one water resource (10) with at least one flow generator (20),at least one data...
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JP7066148B2 |
To provide a boat with a hard to damage junction between a stern plate and a float body.A boat 10 comprises: a boat bottom unit 16; a float body 18; a stern plate 20 to which a propulsion device 14 is attached; a reinforcement unit 22; a...
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JP2022067023A |
To provide a high-performance ship propulsion system by combining a combustion propulsion device with a jet propulsion ship, where the combustion propulsion device propels a ship with the pressure generated by intermittently burning mixe...
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JP7043632B2 |
The invention is a jet propulsor using gas or liquid of the environment as an operating medium (OM). The propulsor comprises eight nozzles arranged centrally symmetrically and a channel system (CS). The CS comprises eight active channels...
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JP7009656B2 |
Disclosed are an improved nozzle for an unmanned underwater vehicle (UUV), and a method for operating the same. The nozzle includes a first rigid member operatively coupled to a UUV steering mechanism. The nozzle also has a second rigid ...
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JP2021151875A |
To provide a planing boat capable of small turns and easily steered by having a rapid turnabout possible.A planing boat includes a hull having a boarding portion and a screw unit having a screw. The planing boat is configured to vary pro...
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JP2021146797A |
To enable switching of a control mode of a driving source without providing a new operator.In a vessel 10, when it is determined that a throttle lever 27 has received operation, an ECU 28 determines whether a current state corresponds to...
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JP6895197B1 |
To provide a rescue boat capable of smoothly navigating in flooded water, which is free from damage even when a drifting object collides and is easy to transport. A rescue boat 1 includes a floor 10, an outer shell 20, and a pump 30 (pro...
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JP2021091384A |
To provide an adjustable jet device attachable to a surf board.An adjustable jet device attached to a surf board has a structure: including two horizontally symmetrical push plates 11 and two horizontally symmetrical holding blocks 46; i...
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JP2021080940A |
To provide a sealing mechanism capable of elongating durability life of a sealing function.A sealing mechanism includes: a rotating shaft 110; a driving source 120 for rotating the rotating shaft 110; a case 130 for storing the driving s...
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JP2021075133A |
To provide a small ship and a trim angle control method for the small ship capable of automatically controlling a trim angle of a hull while suppressing the complication of a configuration.A small ship 100 comprises an engine 20, a propu...
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JP6873459B2 |
To be capable of reducing friction resistance by generating bubbles in a vessel bottom unit without using air delivery means as well as increasing thrust of a vessel.A vessel 1 according to an embodiment includes: a hull 10 provided with...
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JP6872060B2 |
To provide an underwater propulsion device capable of improving cooling efficiency in a motor and a motor driving circuit with a simple configuration.An underwater propulsion device 20 of waterborne vehicles 1 with an on-water floating p...
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JP2021062859A |
To prevent the problem that a vessel propelled only by combustion of the fossil fuel causes global warming and high navigation cost by fossil fuel.A vessel propulsion system by hydraulic pressure has an energy saving effect by: greatly r...
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JP2021062693A |
To provide a ship capable of reducing a manufacturing cost for the configuration to support a drive shaft which transmits a driving force of an engine to a propeller.A ship 1 includes a hull 2, an engine, a propeller, a drive shaft 17, a...
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JP2021049874A |
To provide a turbine for generation of propulsion force usable as a generation source for propulsion force in a deep-sea explorer or a vessel and capable of facilitating saving energy.A turbine for generation of propulsion force comprise...
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JP2021049853A |
To provide a control system of a ship capable of maintaining a planing state at a relatively low speed.A control system of a ship has: a throttle opening adjustment part 26 for adjusting a throttle opening; a determination part for deter...
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JP2021046072A |
To provide a jet propulsion boat for easily enjoying wake surfing.A jet propulsion boat 1 includes: a hull 2; a jet pump 8 having an ejection nozzle 17 for water provided on the hull 2; and a first guide 21 attached to the hull 2. The je...
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JP6842910B2 |
An amphibious vehicle includes a vehicle body, a prime mover, a drive wheel, a water propulsion device, a drive wheel transmission, and a propulsion transmission. The drive wheel is disposed on a front side of the prime mover. The water ...
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JP6807627B2 |
To provide a propulsion unit of hybrid system by combustible gas which simplifies an ignition plug to non-spark type plug and simultaneously enables stronger and more stable continuous running by securing combustion every one time and fu...
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JP6801865B2 |
To provide a catamaran type rescue boat capable of speedily and safely rescuing a rescuee even in a place where a rescue boat with a rescue staff aboard cannot come close to and even under bad weather and bad conditions and capable of re...
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JP6785060B2 |
To provide a method of forming groove/hole in seabed, which is small in size and easy-to-handle especially suitable for drilling work on a shallow seabed of 1 m or less requiring no drilling vessel equipped with engine pump at a low cost...
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JP6783656B2 |
The present invention comprises a self-propelled craft with a U-shaped main body provided with two turbines, one on each flap of the U-shaped main body, which propel the self-propelled craft through turbine operation in a chamber fed by ...
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JP2020172241A |
To provide a propulsion system for a power type vessel.A propulsion system for a power type vessel includes a supporting member, an outboard engine, a water guiding member, and a water drawing unit. The supporting member is attached to a...
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JP6771438B2 |
An unmanned underwater vehicle (UUV) is disclosed. The UUV includes a body and a propulsion system for propelling and orienting the UUV. The propulsion system has an inlet formed in the body that facilitates fluid being drawn into the UU...
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