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Patent Searching and Data


Matches 901 - 950 out of 3,936

Document Document Title
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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) ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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) ...  
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...  
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...  
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...  
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...  
JP2021169241A
To realize a small-sized ship propulsion machine adopting a counter-rotating propeller.A ship propulsion machine comprises a drive shaft 6, an inner propeller shaft 31 provided with a rear side propeller 56, an outer propeller shaft 32 p...  
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...  
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...  
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; ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
JP2021098467A
To automatically suppress chine walk.A steering control device for vessel is provided having an acquirement unit for acquiring at least one behavior of a hull regarding deviation in at least one direction of a rolling direction, a yaw di...  
JP6883862B2
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...  
JP2021070456A
To provide a vessel making safe and comfortable navigation possible by preventing plastic litter and water plants, etc., wrapping around a propeller during navigation.A cylindrical protection cover 4 surrounding a propeller 3 of an outbo...  
JP6841540B1
To control a ship position without being hindered by interfering with a main propulsion device by an outboard motor or an outboard motor, and when the thruster is exposed on the water surface, the thruster thrust becomes unstable and the...  
JP2021030819A
To provide an outboard engine and a ship capable of avoiding submergence at the time of tilt-up while suppressing the weight increase of the outboard engine.This outboard engine 100 comprises an engine E, a drive shaft 3 to transmit the ...  
JP6832304B2
The present invention provides a ship propulsion apparatus, which is possible to collect axial flow energy generated by rotation of a propeller, and a ship. The ship propulsion apparatus comprises: a propeller formed on a stern portion; ...  
JP6831459B2
The invention provides a method for operating a marine vessel (1) comprising a plurality of propulsion units (106, 107, 108, 206, 207, 208), each being arranged to deliver thrust to water in which the vessel (1) is floating, the thrust d...  
JP6827034B2
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 ...  
JP6829013B2
An electric propulsion system is described that includes at least one branch for distributing electrical power, provided by a power source, to one or more loads. The at least one branch is partitioned into one or more zones and comprises...  
JP2021011178A
To provide a ship capable of improving turning ability of the ship.A controller receives a signal indicating an operating amount and an operating direction of a steering member. The controller makes a hull turn to the direction according...  
JP2021011202A
To provide a propulsion system capable of reducing fuel consumption in low speed navigation, etc, by being capable of stopping an engine directly driving some propulsion devices among a plurality of propulsion devices while maintaining s...  
JP6826276B1
To provide a method for identifying the degree of propeller cavitation. A step of collecting a noise signal of a propeller in water, a step of obtaining a circulation density spectrum, a step of averaging and constructing an enhanced env...  

Matches 901 - 950 out of 3,936