13results about "Steering by jets" patented technology

A watercraft propulsion system includes a bow thruster, at least two propulsion devices, a translation / bow turning operator to apply a translation command to translate a hull and a bow turning command to turn a bow of the hull, and a controller configured or programmed to drive the bow thruster, and drive one of the at least two propulsion devices forward and another of the at least two propulsion devices in reverse while controlling the steering angles of the at least two propulsion devices so that propulsive force action lines of the at least two propulsion devices cross each other in the hull in a translation watercraft maneuvering mode to translate the hull in response to an operation of the translation / bow turning operator. The controller includes a calibration mode in which calibration is performed for the translation watercraft maneuvering mode.

A method for adaptive dynamic positioning of a vessel during offshore charging from a power station, actively assisted by a cable management system, the method comprising the steps of: (i) establishing a control link between said cable management system, configured to control at least one characteristic parameter of a charging cable connected between the power station and the vessel, and a positioning control system, configured to control a propulsion system of the vessel so as to move the vessel relative to the power station; (ii) defining, relative to the power station and based on said at least one characteristic parameter of said charging cable, a first target zone, adapted to effect vessel movement (response) of a first type, and at least one second target zone containing said first target zone, adapted to effect vessel movement of at least one second type; (iii) monitoring any one of said at least one characteristic parameter of said charging cable, at least one performance parameter of said propulsion system, a vessel position and / or a vessel heading) relative to the power station, and at least one environmental parameter; (iv) selectively modifying said first target zone and / or said at least one second target zone in response to a predetermined change of any one of said at least one characteristic parameter of said charging cable, at least one performance parameter of said propulsion system, said vessel position relative to the power station, and said at least one environmental parameter; (v) controlling said positioning control system and said cable management system, so as to maintain the vessel within or move the vessel back towards said first target zone in accordance with said vessel movement of a first type and said vessel movement of a second type, respectively.

The present invention provides a jet propulsion system, a jet-propelled boat, and a boat hull launching method that enable easy launching of the boat hull from a trailer. [Solution] This jet propulsion system 100 includes a jet propulsion mechanism 4 that generates thrust by ejecting a jet of water from the nozzle 44a, which is located at the stern 114 of the hull 110 and includes a nozzle 44 provided with a jet water nozzle 44a, a nozzle actuator 5a that rotates the nozzle 44 to change the direction of the jet water from the nozzle 44a, and a control unit 8 that performs oscillation control by repeatedly oscillating the nozzle 44 using the nozzle actuator 5a when lowering the hull 110 from the trailer T.

The present invention provides a jet-powered boat, a jet-powered boat control system, and a method for maintaining the docked state of a jet-powered boat, which enable the boat operator to maintain the docked state of the boat at a pier even when the boat operator is located away from the hull. [Solution] This jet-propelled boat 100 includes a control unit 40 that performs docking maintenance control, which controls the water flow direction adjustment unit 30 so that the direction of the jet water flow generated from the water flow generation unit 20 is maintained in a state that presses the hull 10 against the pier 201 when a docking maintenance operation is performed to maintain the hull 10 docked against the pier 201, while also controlling the water flow generation unit 20 to maintain the state in which a jet water flow is generated from the water flow generation unit 20.

The invention relates to a device for manoeuvring a vessel or craft, such as a tender servicing e.g. a yacht or ship. The device comprising a series of outputs for connected to nozzles to create water jets for producing a thrust to move the vessel or craft. A pump is provided to take in water and supply the nozzles. Control is dependent on an input received from an interface, and effected using valves. A similar method is disclosed, and so is a system and a vessel comprising such a device.

A watercraft having a body with an opening for a user, a seat, at least one drive mechanism placed at least partially within the opening; an intake configured to allow a flow of water from a body of water surrounding the watercraft; a pump configured receive the flow of water and accelerate the flow of water, and a user controlled discharge configured to receive the flow of accelerated water from the pump and discharge the accelerated water to the water surrounding the watercraft such that the watercraft moves in a direction chosen by the user.

A jet propulsion watercraft includes a controller configured or programmed to, when a docked state maintenance operation is performed to maintain a hull in a state docked at a pier, perform a docked state maintenance control to control a water flow generator to maintain generation of a jet of water from the water flow generator while controlling a water flow direction adjuster to maintain a direction of the jet of water generated from the water flow generator in a direction to cause the hull to be pressed against the pier.

A control method, a display device, a water propulsion system, a watercraft, and a computer-readable storage medium, are provided. The control method is used for a display device. The display device is communicatively connected to a water propulsor, and the water propulsor includes a trimming device. The control method includes: receiving an input to generate a trimming instruction, the trimming instruction carrying a target trimming angle; sending the trimming instruction to the trimming device to cause the trimming device to trim to the target trimming angle; receiving a real-time trimming angle fed back by the trimming device during the process of trimming to the target trimming angle; and displaying an animation of the real-time trimming state of the water propulsor based on the real-time trimming angle.

A system and method for improving ship efficiency through integrated hull optimization. The system includes automated bow thruster covers that can reduce hull drag and condition water flow, coupled with strategically positioned air lubrication nozzles that create and maintain an air layer beneath the ship. Bow thruster covers can be configured as round doors or parallel panels, optionally incorporating air discharge ports or working in conjunction with dedicated air jets. An intelligent control system utilizes real-time sensor data and computational fluid dynamics analysis to optimize these integrated components. The system adjusts air distribution and cover position based on sea conditions and ship speed, maintaining optimal efficiency throughout operation. Outer surfaces can incorporate superhydrophobic structures to enhance air retention and reduce drag. The integrated combination of these components provides higher hydrodynamic efficiency while maintaining full bow thruster functionality when needed.

A remotely operated underwater vehicle (ROV) for close range visual inspection of a surface by means of a camera array (14). The ROV comprising a number of buoyancy elements (50, 52) and a number of components including a number of at least six propulsion devices (12) for maneuvering the remotely operated underwater vehicle in a three-dimensional space. The number of propulsion devices may be arranged for generating thrust when maneuvering the remotely operated underwater vehicle in a substantially pure translational motion or a substantially pure rotational motion.