22results 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 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 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.

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.

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 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.

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.

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.

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.

A rotor assembly for generating vehicle thrust. The rotor assembly includes a rotor hub with a plurality of rotor blade assemblies coupled thereto. Each rotor blade assembly includes a metallic bearing race, a composite rotor blade and a split collet assembly. The split collet assembly includes two circumferentially distributed collet members each having an inner inboard conical seat configured to mate with a radially outwardly extending conical feature of the bearing race and an inner outboard conical seat configured to mate with a radially outwardly extending conical feature of the rotor blade. The split collet assembly also includes an outer sleeve having an inner conical surface that mates with outer conical surfaces of the collet members to maintain the collet members in a circumferential orientation around the bearing race and the rotor blade such that the split collet assembly provides a centrifugal force load path therebetween.

The utility model discloses a pesticide spraying ship which comprises a remote control ship body, a pesticide spraying device and a pesticide spraying device. The air propeller mechanism is fixed in the U-shaped frame; the pesticide box is fixed in a cabin of the remote control ship body; the pesticide pump is fixed in a cabin of the remote control ship body, and an inlet of the pesticide pump communicates with a pesticide outlet of the pesticide box through a pipeline; the U-shaped pesticide spraying pipe is fixed to the rear side face of the U-shaped frame, the U-shaped pesticide spraying pipe is communicated with an outlet of the pesticide pump through a pipeline, a plurality of mist-shaped pesticide spraying heads are arranged on the U-shaped pesticide spraying pipe in the U-shaped direction of the U-shaped pesticide spraying pipe, and the pesticide spraying directions of the mist-shaped pesticide spraying heads all face the air propeller mechanism. According to the fertilization ship, the plurality of atomization pesticide spraying heads arranged in the U shape are adopted, so that the number of the pesticide spraying heads is increased, and atomized fertilizer sprayed by the atomization pesticide spraying heads is blown away by utilizing wind of the air propeller mechanism, so that the pesticide spraying coverage rate and the pesticide spraying efficiency are greatly improved.

To provide an observation device and an observation method of a water area environment capable of freely navigating an unmanned navigation body without being affected by seaweed or the like, and capable of observing a blue carbon ecosystem more inexpensively and efficiently than before.SOLUTION: The unmanned ground vehicle includes a self-propelled unmanned ground vehicle (20) and a control device (50) for remotely controlling the unmanned ground vehicle (20), the unmanned ground vehicle (20) including a hull (30) and a measuring unit (40), the hull (20) including a frame-shaped hull frame (31) having corners, a plurality of floating bodies (32) provided at intervals on an outer peripheral portion of the hull frame (31), and a plurality of sets of rotor units (35) erected on an upper portion of the outer peripheral portion of the hull frame (31) so as to face each other at positions not interfering with the floating bodies (32).SELECTED DRAWING: Figure 1

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.

To provide a moving body capable of suppressing wetting of an apparatus provided in a body while quickly moving in a width direction.SOLUTION: The moving body 1 includes a main body 2 capable of floating on a water surface WS, a fan 6 provided in the main body 2 and capable of generating an air flow directed outward of the main body 2 in a widthwise direction of the main body 2, and a guide surface 72a provided in the main body 2 and receiving a reactive force by guiding the air flow generated by the fan 6. The guide surface 72a is disposed at a position offset from the center point CP of the main body 2 in the widthwise direction, and is configured to change the traveling direction of the air flow generated by the fan 6 to increase the upward directivity of the air flow.SELECTED DRAWING: Figure 9

Various examples are provided related to autonomous unmanned drone-tethered sonar systems. In one embodiment, a bathy-drone system includes an unmanned payload vessel and an unmanned drone tethered to the payload vessel through the tether attachment point. The unmanned payload vessel can include a sensor or sensor suite coupled to a bottom of the payload vessel and a tether attachment point through which propulsive force can be applied to the payload vessel. The drone can autonomously transport the payload vessel to and from a survey location and autonomously propel the payload vessel along a survey path at the survey location.

The utility model relates to the technical field of sediment sampling, in particular to an intertidal zone sediment sampling device which comprises a vehicle body, a plurality of propellers are arranged at the top of the vehicle body, a supporting plate is fixed to the top of the vehicle body, a sampling main rod is fixed to the bottom of the supporting plate, and a sampling barrel is fixed to the bottom of the sampling main rod through a mud outlet plate. A plurality of sealing rods are arranged in the sampling barrel, a sealing plate is arranged at the bottom of each sealing rod, an upper cabin plate is fixed in the sampling barrel, a lower cabin plate is arranged at the bottom of the upper cabin plate, a plurality of sampling cabins are fixed between the sampling cabin and the upper cabin plate, and a sampling main head is arranged in each sampling cabin. One end of each sampling main head is provided with a sampling auxiliary head; the sampling main rod is telescopic, so that the mud outlet plate can be driven to move up and down, sampling is facilitated, meanwhile, the height of the sampling barrel can be measured through the ranging rod, and the sampling accuracy is guaranteed.