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...
|