52results about "Air acting propulsive elements" patented technology

A wind energy plant with a nacelle, a rotor, which features at least one rotor blade adjustable in its blade pitch angle, a central control device for controlling the wind energy plant and a control unit disposed in the rotor for controlling the blade pitch angle of the at least one rotor blade, wherein the central control device and the control unit in the rotor can exchange data with each other via a data link, which comprises at least one first sending and receiving device at the nacelle side and at least one second sending and receiving device at the rotor side, wherein a wireless network connection with a safety-oriented communication protocol is provided between the at least one first sending and receiving device and the at least one second sending and receiving device, and that one monitoring- and communication device at a time is associated to the first and / or the second sending and receiving device, which can monitor the function of the sending and receiving device and initiate a predetermined action in the case of an error.

A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.

A craft is provided with a lever that can control the power / speed of the craft and semi-automatically transition the craft in various modes of operation. This makes control of the craft somewhat similar to control of a boat, thereby bringing a maritime flight control experience to a wing-in-ground effect vehicles, hydrofoiling vessels, seagliders, and seaplanes. Further, various audio, visual, and / or haptic devices in the cockpit can provide alerts / feedback to the operator on the use of the lever and mode transitions.

The hydrofoil ship comprises a ship body, air propellers are arranged on the outer walls of the two sides of the stern end of the ship body, a mounting cylinder is connected to the center of the stern end of the ship body, and a supporting column is embedded in the inner wall of the bottom of the mounting cylinder; one side of the bottom end of the supporting column is connected with a first hydrofoil through a rotary joint, limiting blocks are connected to the outer walls of the two sides of the supporting column, a connecting rod is arranged in the middle of one side of the supporting column in a penetrating mode, and the bottom end of the connecting rod penetrates through the supporting column to be connected with the first hydrofoil through a movable joint; a driving mechanism is arranged on one side of the interior of the mounting cylinder; according to the hydrofoil ship, a wind power propelling mode is adopted, a structure entering water does not need to be additionally arranged, advancing of the ship is more stable, the connecting rod is pulled through the driving mechanism to change the attack angle of the first hydrofoil, and the hydrofoil ship keeps a stable navigation posture under different sea conditions.

A waterborne vessel includes a fuselage, at least one forward wing coupled to the fuselage, at least one rearward wing coupled to the fuselage and aft of the at least one forward wing, a first pontoon positioned and coupled to a port side of the fuselage, a second pontoon positioned and coupled to a starboard side of the fuselage, and a tail assembly coupled to the fuselage and aft of the at least one rearward wing. The tail assembly includes at least one rudder. The vessel further includes at least one propulsive element coupled to the fuselage and configured to generate airflow toward the tail assembly.

A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.

The application discloses an enhanced ion propulsion ship platform, which comprises a ship body, a rudder, an enhanced ion thruster and a high-pressure generating module. A plurality of enhanced ion thrusters are coaxially connected in series through connecting rods in a propulsion direction and are installed on a tail deck of the ship body. The enhanced ion thruster comprises an acceleration duct, two groups of supports are installed in the acceleration duct, each group of supports comprises two electrode supports, first electrodes in the form of sheets are uniformly arranged on the electrode supports close to the connecting rods, and second electrodes in the form of sharp shapes are uniformly arranged on the electrode supports on the other side. The number of the enhanced ion thrusters to be connected and the electrode voltage required are controlled to meet the required thrust of the ship at different speeds. The particle swarm algorithm is used to determine the minimum ship resistance, and the best longitudinal inflow angle and outflow angle are obtained to realize the efficient operation of the low-speed ship platform. The application has the advantages of simple structure, economy, lightness, easy popularization and suitability for various water surface low-speed operation systems.

To provide a moving body capable of quickly moving in the width direction and preventing devices provided on the main body from being wetted with water. [Solution] The moving body 1 comprises a main body 2 capable of floating on the water surface WS, a fan 6 provided on the main body 2 and capable of generating an air current directed outward from the main body 2 in the width direction of the main body 2, and a guide surface 72a provided on the main body 2 and receiving a reaction force by guiding the air current generated by the fan 6. The guide surface 72a is positioned at a position offset from the center point CP of the main body 2 in the width direction, and is configured to change the traveling direction of the air current generated by the fan 6 and increase the upward directivity of the air current.

The invention provides a multifunctional automatic maritime single sick and wounded transferring device and method, and relates to the technical field of maritime rescue, the multifunctional automatic maritime single sick and wounded transferring device comprises a hovercraft body, a middle-layer plate is fixed to the top of the hovercraft body, and a central controller, a cardio-pulmonary resuscitator, a defibrillation monitor, a mechanical ventilator, a pressurization infusion apparatus and a lithium battery are fixed in the middle-layer plate; a first plate body is fixed to one end of the top of the middle-layer plate, and a second plate body is hinged to one end of the first plate body. According to the device, the central controller is set according to the position needing to be transported, then the hovercraft body and the wounded person are moved to the sea surface from the ship, fan blades are driven by a servo motor to rotate, wind power is generated to push the hovercraft body to move, an electric telescopic rod stretches out and draws back, a conveying rod is driven to move, and then a rotating shaft is driven to rotate by a certain angle; the moving direction of the hovercraft body is controlled by changing the direction of the fan blades, and the hovercraft body is navigated to a designated place, so that the effect of quickly and automatically transporting the wounded can be achieved.

The invention discloses a bionic multi-purpose offshore unmanned rescue ship for mayfly naiad. The ship comprises a ship body, a driving device, an energy system, a lifting device, a positioning sensing system and bionic mayfly naiad legs. Wherein the lifting device comprises a steel cable, a steel wire mesh, a pulley and a motor driving unit; the bionic mayfly naiad of the offshore unmanned rescue ship adopts a modularized hemispherical floating body structure, and a main body part is designed to be free of water immersion. The driving device adopts a pneumatic propelling system, so that a person falling into water is prevented from being hurt by a traditional propeller; the positioning sensing system integrates a GPS module and a machine vision positioning technology, and provides support for rescue path planning and personnel detection. The solar array panel can supply power to the battery; through cooperative work of all the assemblies, the personnel falling into water without action ability can be rapidly and accurately positioned and safely rescued, and the offshore rescue efficiency and safety are effectively improved.

The present invention provides a wheel-legged amphibious robot, which relates to the field of robot engineering technology. The wheel-legged amphibious robot provided by the present invention includes a frame, a control component, a wheel-legged leg component and a first driving component. The control component is suitable for controlling the wheel-legged amphibious robot to sail on the water surface or fly in the air; the wheel-legged leg component is connected to the frame, and the wheel-legged leg component is suitable for making the wheel-legged amphibious robot walk on the ground in a foot-like manner or wheeled walking; the first driving component is connected to the wheel-legged leg component, and the first driving component is suitable for driving the wheel-legged leg component to be in a first state adapted for sailing on the water surface, a second state for flying in the air, or a third state for walking on land. By applying the wheel-legged amphibious robot in the solution of the present invention, the control component and the driving component of the wheel-legged amphibious robot can be reused, the number of parts of the whole machine can be reduced, and it is beneficial to the lightweighting of the wheel-legged amphibious robot.

[Nautical propulsion device and ship equipped with the propulsion device Nautical propulsion device 15 for propelling and steering a ship 1, comprising two thrusters 19 fixed to each other, each provided with a motor 21 and a propeller 23, the motor 21 driving the propeller, a support arm 29 provided with an upper part configured for attachment to a ship and a lower part 33 fixed to the thrusters 19 at a distance from the two thrusters 19, a free rotating connection within the support arm about a pivot axis, the thrusters being free to rotate relative to said upper part 31, a gyroscope kinematically linked to the thrusters, configured to detect an orientation about said pivot axis, the gyroscope being configured to transmit thruster orientation data, a control member 39 configured to generate upstream control instructions,and a calculation unit 45 connected to the control member 39 and configured to receive and process said data coming from the gyroscope and said upstream control instructions, and to calculate downstream control instructions intended for the thrusters.],

This invention provides a propulsion mechanism and a ship that can obtain appropriate output characteristics in both cases: when generating thrust using electricity and when generating electricity. [Solution] The propulsion mechanism 100 includes an electric motor 30 that generates driving force for the thruster 12B when power is supplied to it, and a generator 31 that is configured separately from the electric motor 30 and generates power through regeneration of the thruster 12B. Furthermore, the propulsion mechanism 100 includes a shaft 32 that connects the thruster 12B, the electric motor 30, and the generator 31 as the same power system. The propulsion mechanism 100 can disconnect the electric motor 30 when the generator 31 is generating power. Therefore, the electric motor 30 can be set to obtain appropriate output characteristics in the electric propulsion mode, and the generator 31 can be set to obtain appropriate output characteristics in the regenerative power generation mode.

A device for use on water, the device comprising a hull (20) having a substantially planar base (30) and a propulsion system (40) configured to propel the device in any direction across a plane substantially parallel to the base, wherein the propulsion system is located above the water, in use.

The present application discloses a coaxial rotor cross-medium multi-aquatic unmanned system, which includes a main body cabin and a plurality of power units symmetrically arranged relative to the main body cabin; each power unit includes a variant mechanism and a coaxial rotor assembly installed on the variant mechanism. The variant mechanism includes a fixed bracket fixedly connected to the main body cabin, a rotating bracket rotatably connected to the fixed bracket. The rotating bracket is provided with a driving motor and a power rod connected to the output shaft of the driving motor; the coaxial rotor assembly includes a propeller coaxially installed on the outer side of the axial direction of the power rod and a rolling wheel on the inner side of the axial direction of the power rod; the driving mechanism drives the rotating bracket to rotate at different angles relative to the fixed bracket in the vertical plane through a push rod, so as to place the propeller and the rolling wheel at a plurality of working positions corresponding to a plurality of motion modes of the unmanned system respectively. The present application can cope with the natural environment with diverse terrains and has the characteristics of simple structure, convenient and fast switching.

This invention discloses a multi-functional hovercraft that is easy to disassemble, store, and pack, and its disassembly method. Belonging to the field of hovercraft technology, the multi-functional hovercraft includes a hull, a cockpit within which a driver's seat is fixedly installed, a power base fixedly installed at the stern of the hull, a wind duct frame on top of the power base, a propulsion mechanism within the wind duct frame, an air intake duct fixedly installed on the wind duct frame, and an orientation control component on top of the air intake duct. The wind duct frame includes four arc-shaped brackets, which can be used with a first quick-release locking rod, a second quick-release locking rod, and a third quick-release locking rod to quickly disassemble large components such as the wind duct frame, propulsion mechanism, and orientation control component into several smaller components. Compared to traditional methods that use numerous bolts for fixing, this method of disassembly is more convenient, making it easier to carry and transport.

A vessel for transporting cargo by water comprises one or more propulsion devices with at least one air-breathing engine from the one or more propulsion devices disposed entirely above a surface of the water in a high-speed mode of operation. The least one air-breathing engine is configured to bleed airflow into a fluid circuit. The fluid circuit routes the bleed airflow to one or more fluid outlets disposed entirely below the surface of the water in the high-speed mode of operation. At least some of the one or more fluid outlets release the bleed airflow in the high-speed mode of operation generate a boundary layer along at least a portion of a hull of the vessel to reduce a skin friction drag thereof.

To provide an electric fan which has a simpler structure and achieves higher cooling performance, and to provide an electric aircraft.SOLUTION: An electric fan includes: an electric motor having an output shaft extending along an axis and a cylindrical housing centered on the axis; an inner duct provided at the downstream side of the electric motor; multiple blades attached to the output shaft; and a cooling member having fins provided on an outer peripheral surface of the housing.SELECTED DRAWING: Figure 2

The present invention relates to an agricultural machine for seeding, spraying and fertilizing using a plurality of propellers, comprising a main body frame for mounting a seeding, fertilizing and spraying system, a plurality of wind wheel systems or a plurality of skateboard / wheeled systems, and a controller. The wind wheel system is used for driving the machine to steer. The plurality of skateboards or wheeled systems facilitate sliding of the machine on the water surface. The controller is used for driving and controlling the propellers.

The utility model relates to the technical field of aerodynamic ships, in particular to an aerodynamic ship which comprises a ship body, a cockpit and a power assembly, the ship body comprises two parallel main air bags, an auxiliary air bag set is arranged between the two main air bags, and fish scale-shaped bionic armor layers are arranged on the outer surfaces of the main air bags and the auxiliary air bag set; the cockpit is a closed cockpit, the power assembly comprises an engine, a gearbox and an air propeller which are arranged on the rear portion of the ship body, a detachable protective cover assembly is arranged on the periphery of the power assembly, and a steering control mechanism is arranged at the tail end of the protective cover assembly. By arranging the fish scale-shaped bionic armor layer, the wear resistance and impact resistance of the ship body are enhanced, the air bag is effectively protected from being damaged by external sharp objects, and the service life of the ship body is prolonged; by arranging the protective cover assembly, the protective effect is effectively achieved, and maintenance and overhaul of the power system are also facilitated; by arranging the steering control mechanism, a driver can accurately control steering of the ship, operation is flexible, and maneuverability of the ship in the sailing process is improved.

The invention belongs to the technical field of air cushion suspension transportation equipment, and relates to an air cushion suspension ship with a lift low-wind-resistance bow body, the air cushion suspension ship comprises a ship body main frame, an arc streamline bow body and a stern body, the arc streamline bow body and the stern body are symmetrically arranged at the two ends of the ship body main frame, the sweepback angle of the front edge of the bow is 17-18.3 degrees, and the downward inclination angle of the lower edge of the bow is 5-7 degrees to form a front air seal. An integrally-formed air cushion flow guide enclosure shell is arranged on the lower portion of the ship body main frame, the air cushion flow guide enclosure shell, the ship head and the ship tail define an air cushion positive pressure cavity, and a ground effect air cushion is formed through air supply of front and rear duct booster fans to achieve non-contact suspension. The system further comprises a splayed symmetrical four-rotor power system, and four groups of rotor assemblies are fixed through vertical left and right motor mounting brackets to form a main propulsion and posture adjusting unit. Wind resistance is reduced and lifting torque is generated through the bow at a specific angle, air leakage is restrained in cooperation with an air seal structure, and low-wind-resistance, zero-friction suspension and high-stability control are achieved.

The invention pertains to a vessel comprising a propulsion system comprising both an aerodynamic spinning actuator and a hydrodynamic spinning actuator both being used concurrently to move the vessel in sustainable low emission operating conditions. The invention also pertains to a method for operating such a system.

The present Invention of Speed Cycling Watercraft is a single and double cycling system and is water or air propelled. It is specifically designed for manual water racing or sporting and the floater is unsinkable platform. The double cycling system is designed such that anyone cyclist can lock in and out to rest or continue and the cycling independent. The system comprises, unsinkable platform, mono wheel bike or bikes, single or double cycling gearbox, propeller shaft and water or air propeller. Motion transmission system is developed into three stages, primary, secondary and advanced stage, capable of generating more than 2,400 rpm on air propelled platform and 2,000 rpm on water propelled platform. For the air propelled platform, breaking mechanism is separately designed. The present invention of Speed Cycling Watercraft is mainly designed for manual water racing or water sporting, the futuristic Commonwealth and Olympic Games Water Cycling Sport.

Devices, such as aerodynamic kites used in kiteboarding (also known as kitesurfing), handheld aerodynamic wings used in wing foiling and wing surfing, and paddles used in paddleboarding, for generating a force for powering a user on an appropriately configured vehicle, such as a kiteboard, kitesurfing foilboard, hydrofoil board, surfboard, wing board, wing foil board, stand up paddleboard, stand up paddleboard with hydrofoil, roller skates, rollerblades, skateboards, snowboards, skis, or ice skates, to traverse across a body of water, sand, earth, paved area, snow, or ice, are provided with a thrust generating device (e.g., an electric ducted fan system) to assist in generating said force.

A lightweight vehicle useful for harassing wildlife / waterfowl includes an elongated body / fuselage with a motor-powered propeller in the front and a vertical tail with a controllable rudder in the rear. The vehicle is able to travel over land or water on a pair of elongated floats having a ski-type shape that support the vehicle. The vehicle is made of lightweight materials such as carbon fiber so that it can travel over water, ice, snow, and mown grass without damaging the grass. The vehicle may be remotely controlled or autonomous.

A bladeless sail device is characterized in that a spraying device is fixed on a main deck through a base, the spraying device is provided with an annular main body, the annular main body comprises an inner shell and an outer shell, and the inner shell and the outer shell are connected through a connecting plate to form a hollow inner cavity. The base is provided with a honeycomb-shaped base wall, a centrifugal pump is fixed to the center in the base, a silencing cavity is formed above the centrifugal pump and fixed to the top of the base, and a drainage hole is formed in the top of the center of the silencing cavity and communicated with an air inlet in the bottom of the spraying device. Air is driven by an impeller of the centrifugal pump to enter the base through the honeycomb-shaped base wall, is pressurized by 15-20 times in a cyclone mode, is pushed to the drainage pipe on the top, enters the hollow inner cavity through the air inlet and is exhausted from the air outlet and the top air outlet. The area of the original sail blade can be greatly reduced, the maintenance workload of the sail blade can be effectively reduced, the weight can be reduced, the oil consumption can be reduced, the wind energy is improved by 15-20 times compared with the wind power of the original sail, and the boosting power is improved.

The present Invention of Paralympics Cycling Watercraft is a single and double cycling flat catamaran and is water or air propelled. It is specifically designed for persons with disability. It comprises, unsinkable flat catamaran, horizontal and vertical cycling structures, motion transmission mechanism, twin arm gearbox, propeller shaft, water or air propeller. Speed is developed in four stages to achieve more than 1800 rpm. The double cycling system which drives one horizontal transverse shaft has automatic locking in or out should one cyclist wish to take a rest while the other cyclist continues cycling and has a wider seating space to accommodate two cyclists. The present invention of Paralympics Cycling Watercraft can be used only with persons whose lower limbs are disabled but strong upper limbs. It can also be used for water cycling competition for example in Commonwealth and Paralympics games.