66results 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.

An electric fan includes: an electric motor that includes an output shaft extending along an axis line and a tubular housing centered on the axis line; an inner duct provided on a downstream side of the electric motor; a plurality of blades mounted on the output shaft; and a cooling member having a plurality of fins provided on an outer peripheral surface of the housing.

In crafts that have a hydrofoil, a locking mechanism can be used to lock the hydrofoil in place (e.g., in a retracted position or in a deployed position). However, the forces experienced by the hydrofoil, especially when in the deployed position, can cause strain on the locking mechanism, which can lead to jamming or failure. The embodiments presented herein provide a locking mechanism that can be used to avoid this problem. In one embodiment, the locking mechanism uses a pin that is movable along a single axis for engaging / disengaging a. portion in a catch that is shaped to receive the pin. In another embodiment, a rear strut of the craft is rotatable, allowing the rear strut to both support the rear hydrofoil and act as a. rudder of the craft when in water.

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.

To develop a high speed vessel capable of navigating at a speed of 200 to 300 km / h loaded with several hundred tons of cargo.SOLUTION: In a glider vessel, from both sides or a rear part of a cabin or a cargo compartment on a float, an object having the same function as a rotor which rotates blades of a helicopter is raised vertically from a lower part of the float, another rotor is horizontally attached to a rear side meshed at a gear on its upper end, a propulsive type propeller is attached on its tip, a disc-like gear is attached to a lower end, many reciprocating engines or EV motors are attached in a circle at its tip so as to rotate the disc-like gear at a rotor lower end when a bevel gear is rotated in its outer circumference, and the propulsive type propeller at a rotor tip is rotated when the reciprocating engines or the EV motors are operated so as to obtain great propulsion force.SELECTED DRAWING: Figure 5

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.

The present invention provides a polar transport landing craft, which relates to the technical field of ships, and includes a hull, a bracket, a first rudder blade, a second rudder blade, a connecting rod, a first rotating shaft, a second rotating shaft and a transmission mechanism; the bracket is installed at the tail of the hull, the first rudder blade is rotatably installed on the bracket through the first rotating shaft, and the second rudder blade is rotatably installed on the bracket through the second rotating shaft; the first rudder blade includes a first expansion piece and a second expansion piece, and the two expansion pieces are alternately installed on the first rotating shaft; the connecting rod is rotatably connected with the first expansion piece and the second rudder blade respectively; a transmission mechanism is provided between the first rotating shaft, the first expansion piece and the second expansion piece, and the transmission mechanism has a switchable first transmission state and a second transmission state; the first expansion piece and the second expansion piece rotate in the same direction in the first transmission state, and rotate in the opposite direction in the second transmission state. The second expansion piece rotates to the wind duct between the first rudder blade and the second rudder blade, reducing the sliding distance and improving the performance of effective risk avoidance.

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.],

The invention relates to a hovercraft and relates to the technical field of ships, the hovercraft comprises a hull body, a first pneumatic assembly, a second pneumatic assembly and a third driving assembly, an air bag is arranged on the bottom end face of the hull body, the first pneumatic assembly is arranged on the inner side of the air bag, and the second pneumatic assembly is arranged on one side of the first pneumatic assembly; a third driving assembly is mounted on the upper end face of the hull body, a limiting mounting hole is formed in the upper end face of the hull body, the hull body is connected with the third driving assembly through the limiting mounting hole, a deck is arranged on the upper end face of the hull body, a rubber belt is arranged around the air bag, and the air bag communicates with an inflator. The gas spraying pipe is arranged in water and sprays gas, water is pushed through gas, a water body is used for providing counter-acting force, the ship is made to advance, the gas spraying pipe is arranged in water, the flow of air needed by advancing of the ship is smaller, the generated gas can be more efficiently utilized, the ship is made to advance, and pushing of the ship is achieved.

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.