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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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JP2022190606A |
To provide a maneuvering system including three or more vessel propulsion devices as well as being capable of improving acceleration property when the vessel is made to proceed at least in a case of not using one part of the vessel propu...
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JP7178077B2 |
To provide a wake flow field design method capable of realizing overall optimization of hull, stern appendages, and propellers, a wake flow field design system, and ship considering the wake flow field.The design method of wake flow fiel...
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JP2022173007A |
To solve the problem (1) that an impeller of a propeller of a conventional propulsion device of an airplane is installed in a horizontal direction with respect to a flying direction of the airplane, so that a phenomenon of bird strike in...
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JP7169766B2 |
To improve a turning performance of a skeg ship in a shallow water area.A skeg ship comprises: skegs provided on the bottom of a stern along a hull longitudinal direction and including at least a first skeg and a second skeg provided at ...
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JP7158700B2 |
To provide an assembly method for a module type stern duct reducing cost, design, and manufacturing period, etc., as compared to a conventional one, a module type stern duct, and a vessel.An assembly method for a stern duct 20 provided i...
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JP2022159965A |
To provide a propeller guard capable of suppressing deterioration in navigation performance of a vessel by suppressing floating matter such as eelgrass from being tangled to a propeller and a propeller shaft of the vessel, and improving ...
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JP2022158221A |
To provide a lubricant flow sensor that can measure a flow rate by restraining a back pressure to a low level, has high durability, and prevents malfunction from occurring easily even if a lubricant discharge line having a low pressure o...
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JP2022158217A |
To provide a marine double inversion propeller device capable of stopping a seal drain recovery path at an optimum position and a vessel provided with the same.A marine double inversion propeller device 100 comprises: an outer shaft 12; ...
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JP2022158220A |
To provide a thrust gap measurement device and a thrust gap measurement method capable of measuring a thrust gap while the vessel is in operation without opening a marine double inversion propeller device, and a vessel.A marine double in...
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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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JP7152074B2 |
A ducted marine propeller, comprising a propeller (1); hull (2) provided at the lower part of a ship body; a middle partition (3) provided in the hull (2); two water inlet channels (4) symmetrically arranged at two sides of the middle pa...
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JP2022147294A |
To improve propulsion efficiency of a vessel propulsion device provided with a duct propeller as well as secure the steering property.A vessel propulsion device for propelling a vessel includes a plurality of duct propellers each includi...
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JP7145945B2 |
An apparatus for improving propulsion efficiency is discloses. An apparatus for improving propulsion efficiency according to embodiments of the present invention includes a duct disposed in front of a propeller, having an arc shape, and ...
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JP2022144227A |
To provide a water-surface moving body capable of effectively generating lift for floating a main body from a water surface.A water-surface moving body with a main body floating above a water surface comprises a first and second hydrofoi...
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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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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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JP2022117073A |
To provide a pod propulsion device capable of improving cooling efficiency.A pod propulsion device 1 comprises: a pod 3 installed in water; a rotational shaft 7 supported around a prescribed shaft line 3X to be rotatable in the pod 3; a ...
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JP2022115017A |
To provide a multifunctional boat.A multifunctional boat includes a hull and a propulsion system. The hull has a deck and three cylindrical floating bodies. The three cylindrical floating bodies are arranged on a bottom surface of the de...
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JP7110290B2 |
A method for controlling low-speed propulsion of a marine vessel (10) powered by a marine propulsion system (20) having a plurality of propulsion devices (12a, 12b) includes receiving a signal indicating a position of a manually operable...
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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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JP7080162B2 |
To suppress deterioration of efficiency of propulsion by a propeller and efficiency of revolution by a thruster.A ship 1 comprises a hull 2, a pair of propellers 4, a pair of rudders 5 and thrusters 6. The pair of propellers 4 are provid...
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JP7065804B2 |
At least a portion of the hydraulic cylinder (26) is disposed between the left tilt shaft (42) and the right tilt shaft (43). The hydraulic cylinder (26) exerts a steering force on the outboard motor (3) to rotate the outboard motor (3) ...
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JP7065031B2 |
A thruster for propelling a marine vessel, the apparatus comprising an upper housing, a lower housing, the lower housing being arranged to rotate relative to the upper housing, a first body arranged within the upper housing, the first bo...
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JP7049851B2 |
To improve propulsion performance by reducing wave resistance in an attachment unit of a rudder in a vessel.A vessel includes a hull 10, a pair of right and left propellers 19A, 19B arranged in a stern 12 of the hull 10, and a pair of ri...
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JP7049144B2 |
To improve propulsion efficiency and to suppress increase in resistance in a stern fin and a vessel.A first angle θ1 to a horizontal surface H of a root unit 31 attached to a hull 10 and a second angle θ2 to the horizontal surface H at...
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JP2022021515A |
To provide a two-bow vessel capable of obtaining improvement in proceeding performance by suppressing one of wedges to be a resistance when providing wedges to both sides in the front to back direction of the two-bow vessel.A two-bow ves...
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JP2022018646A |
To improve support rigidity of a propeller as well as improving propulsion performance of an outboard motor.An outboard motor includes a duct, a propeller, a central shaft, and a plurality of fins. The duct has a circular hole. The prope...
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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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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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JP6991590B2 |
To provide a water surface floating article recovery ship capable of efficiently recovering a water surface floating article in a hull by controlling a water flow generated inside/outside the hull through driving of an outboard engine at...
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JP6987487B2 |
The invention relates to an arrangement for multi screw vessels, in particular twin screw vessels, with external propeller shafts, as well as to a method for producing such an arrangement. The arrangement according to the invention is in...
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JP2022000379A |
To provide an arrangement structure for a multiple screw vessel suitable for a driving system of the multiple screw vessel and including an outboard propeller shaft also suitable for improving energy efficiency.An arrangement structure h...
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JP2022000359A |
To provide a contra-rotating propeller with easy application to an existing vessel and excelling in reliability.A contra-rotating propeller 3 for a vessel includes: a main engine propeller 9 which is rotatably provided on a stern of a hu...
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JP6982681B2 |
An omnidirectional propeller capable of providing a ship, a platform, a submersible, and a submarine with a force or moment having six degrees of freedom. The propeller comprises a propeller pod (301) fixed below a slewing mechanism (2) ...
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JP6974828B2 |
To provide an underwater noise estimation method, an underwater noise estimation program and an underwater noise estimation device estimating noise by a sailing body underwater by a combination of CFD and test result effectively and accu...
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JP6975724B2 |
Large displacement hull ship comprising a hull (10) and thrusting and governing means (100), arranged on each side of the center line of the ship (400), comprising at least one propeller (152), providing a thrust parallel to the center l...
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JP2021180579A |
To provide a radial gap type synchronous machine and a motor generation system capable of achieving high efficiency and high output density.A radial gap type synchronous machine 1 includes a cylindrical stator 10 provided with a pluralit...
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JP6958901B2 |
To provide an amphibian motor car excellent in work property in a fixed state on-water, without overturn in turning or mud dredging work, and excellent in handling ability in use on a land and in on-water travel time.An amphibian motor c...
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JP6951291B2 |
To provide a stern fin attached to the stern of a relatively-high speed ship, which can surely improve the efficiency of assisting the propulsion of the ship, and a ship equipped with the same.A stern fin is attached to a side surface of...
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JP2021146796A |
To properly control a hull attitude.A vessel 11 includes: tab bodies of trim tabs 20A, 20B that are displaced to control an attitude of a hull 13; outboard engines 15A, 15B mounted to the hull 13 to change a tilt angle relative to the hu...
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JP2021115954A |
To provide an amphibian motor car which can suppress occurrence of overheat by cooling a travel internal combustion engine at the travel on the ground.An amphibian motor car comprises: a vehicle body 4 which includes an engine space 13; ...
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JP2021116011A |
To improve fuel consumption when having stance of a vessel attain a target angle.A vessel includes: two propulsion generating devices 113L, 113R respectively provided to both sides of a hull; a steering mechanism 115 for controlling turn...
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JP2021109640A |
To provide an auxiliary propeller for a ship departure that does not require a large-sized tugboat to push/pull a ship and that protects a screw propeller from entanglement of aquatic plants and debris.A rotatable propulsion housing 18 i...
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JP2021109641A |
To provide an icebreaker propeller having a function of vertically moving a hull for assisting crushed ices.Dynamic spaces 23 are provided at left and right symmetrical positions in a hull 21, upper spaces 35 are provided at left and rig...
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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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JP6905695B2 |
To provide a bubble generation detector and its method capable of observing a bubble generation from the control signal and state signal of a drive system, and which improve propulsion efficiency.It has a stage to drive a screw motor 10 ...
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JP6899181B2 |
To easily develop a stern duct capable of improving propulsion efficiency as well as suppressing scale influence between a model ship and an actual ship.A stern duct (20) generating propulsion force by using flow along a hull is formed i...
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