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468 results about "Aerostat" patented technology
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An aerostat (From Greek ἀήρ aer (air) + στατός statos (standing) through French) is a lighter than air aircraft that gains its lift through the use of a buoyant gas. Aerostats include unpowered balloons and powered airships. A balloon may be free-flying or tethered. The average density of the craft is lower than the density of atmospheric air, because its main component is one or more gasbags, a lightweight skin containing a lifting gas to provide buoyancy, to which other components such as a gondola containing equipment or people are attached. Especially with airships, the gasbags are often protected by an outer envelope.
Lighter than air wind and solar energy conversion system
InactiveUS20120235410A1Minimum amount of timePV power plantsDigital data processing detailsEngineeringWind energy conversion
An integrated solar and wind energy conversion system that is carried aloft by an aerostat / balloon, which is filled with lighter-than-air gas or hot air comprises solar panel array and wind turbine array to convert solar radiation and wind power into usable and renewable energy for on and / or off-grid application or storage. The solar panel array includes at least one of the flexible solar panel and spray on solar composite or combinations thereof. The present invention requires minimal land mass, can be deployed in remote areas, it can be deployed as permanent, semi-permanent, or temporary configurations. The present invention uses computers to automate many of the systems function for maximum energy harvesting. The present invention can be used both day and night.
Owner:SERRANO RICHARD J
Skin material of high-altitude aerostat and preparation method of skin material
ActiveCN103692737AReduce penetrationHigh strengthSynthetic resin layered productsLaminationFiberPolyester
The invention discloses a skin material of a high-altitude aerostat and a preparation method of the skin material. The skin material is a high-barrier, high-strength and low-surface-density material which is formed by gluing and compounding a weather resistant layer, a double-layer single-faced aluminum plated high-barrier membrane, a force bearing layer and a welding layer. The weather resistant layer of the skin material of the high-altitude aerostat has high weather resistance; with the double-layer single-faced aluminum plated high-barrier membrane, the high barrier property and low absorptivity-emissivity ratio to the solar spectrum of the material are realized, and the damage of visible light on the skin material can be effectively prevented; an aromatic polyester fiber fabric layer is used as the force bearing layer and realizes good mechanical performance of the skin material after being compounded; the aerostat can be processed and molded through the high-frequency welding function of the welding layer. According to the skin material disclosed by the invention, a multiple membrane compounding process is employed, which is simple and capable of realizing excellent fit of membrane and membrane as well as membrane and cloth. The produced skin material is light in weight and high in strength, and also high in helium barrier property; the areal density of the skin material is only 144g / m<2>; therefore, the weather resistance and high-altitude service life of the high-altitude aerostat can be well improved.
Owner:EAGLES MEN AERONAUTIC SCI & TECH GRP
Method for putting out high-altitude balloon
InactiveCN1562702AOvercome swingOvercoming Vibration ProblemsBalloon aircraftsMarine engineeringHigh-altitude balloon
A method for releasing aerostat includes linking the rope of releaser with the cable of winder, arranging the releaser on the aerostat, inflating the aerostat, releasing the cable for floating the aerostat upward, sequentially linking parachute, rope and instrument cabin, continuous floating upwardly, and actuating the releaser for releasing the aerostat.
Owner:INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
Long mission tethered aerostat and method of accomplishing
ActiveUS20120091261A1Stay rigidReducing reliance on ballonetsNon-rigid airshipsMovable targetsEngineeringGround station
Apparatus and method for a continuous replenishing of the lift gas and maintaining the proper pressure and lift of a tethered medium altitude aerostat utilizing a novel feed tube running the entire length of the tether. A first end of the feed tube is connected to the aerostat while a second end is connected through a novel slip ring means to a pressure controlled helium ballast chamber and scrubber on the ground to maintain pressure and lift by a reversible compressing pump. A plurality of pressure and temperature sensors and tension gauges strategically placed inside and around the airship continuously monitor the temperature and pressure changes in the aerostat. A data retrieval and communication unit mounted on the aerostat collects measurement data from the pressure, temperature and tension sensors which is relayed to the ground station and the data is used to regulate lifting gas pressure inside the aerostat.
Owner:STRATOCOMM CORP
System for providing a rapidly elevated aerostat platform
InactiveUS20120181380A1Improve mobilityRapid deploymentUnmanned aerial vehiclesAnchoring installationsEngineeringMechanical engineering
Owner:INFORMATION SYST LAB
Photoelectric control valve of aerostat
InactiveCN104132176AQuick responseHigh precision of differential pressure controlOperating means/releasing devices for valvesGas-bag arrangementsLower limitEngineering
The invention provides a photoelectric control valve of an aerostat. The photoelectric control valve of the aerostat comprises a valve cover, a seal ring, multiple columns, a base, a control circuit, a valve body, an opening-closing mechanism portion and a limiting mechanism portion, wherein the valve body is arranged on a bag body of the aerostat. The multiple columns are respectively located between the base and the valve body to enable the base and the valve body to be connected. The valve body is provided with a valve port and used for air in an air bag in the aerostat to be discharged out. An outer circle of the valve port is sleeved in an inner hole of the seal ring, and the valve cover covers the seal ring and the valve port and is in a sealed state. A flange structure of the lower end face of a lead screw of the opening-closing mechanism portion is fixed to the valve cover, and the lead screw is used for opening and closing the valve cover and enabling the valve cover to be away from and cover the valve port. A motor of the opening-closing mechanism portion is connected with the control circuit and controls lifting and downward moving of the valve cover in the vertical direction. The lead screw is provided with a threaded hole, a stopping block of the limiting mechanism portion is fixed to the lead screw through the threaded hole, and the stopping block vertically moves with the lead screw to block infrared light emitted by an upper limiting optical coupling assembly and a lower limiting optical coupling assembly of the limiting mechanism portion and cut off the control circuit and accordingly enables the motor to stopping running.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
Air intake and exhaust device and aerostat with same
The invention relates to an air intake and exhaust device and an aerostat with the same. The air intake and exhaust device is used for exhausting or supplementing air in the aerostat and comprises a one-way valve, a blower, a motor, a rolling shaft and two pull ropes, wherein the one-way valve comprises a housing, a base and a mounting flange; the blower is mounted on the mounting flange; the blower and the base are positioned on two opposite sides of the mounting flange; the blower can output wind power to open two hinges on the base; the motor is accommodated in the housing and fixed on the inside wall of the housing; the rolling shaft is driven by the motor to roll and is parallel to the plane where the mounting flange is arranged; and the motor drives the rolling shaft to rotate to drive the two pull ropes to be wound on or unwound from the rolling shaft, so as to open or close the two hinges. The invention has the advantage that air exhaust of the one-way valve and air intake of the blower can be realized in the same passage.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Hydrogen replenished lighter-than-air vehicle and method to replenish hydrogen
The present invention discloses a lighter-than-air vehicle and a method to replenish hydrogen into the vehicle while the vehicle is in the sky. The lighter-than-air vehicle can use helium or other gases that doesn't react with hydrogen as lifting gas. Hydrogen will be replenished into the lighter-than-air vehicle while it is still in mid-air. The lighter-than-air vehicles can comprise an aerostat, a hydrogen generator; a water tank and a duct. The present invention can also comprise an aerostat, a compartment, hydrogen generator, a water tank; and a duct. The present invention can also comprise an aerostat, a compartment, and a hydrogen storage alloy device. The present invention can also comprise an aerostat and a hydrogen storage alloy device.
Owner:PRINCETEL
Musical respiration training instrument
InactiveCN101549200ASolve the comfortSolve operational problemsGymnastic exercisingMuscle groupEngineering
The invention relates to a musical teaching apparatus, especially relates to a musical respiration training instrument, which includes induction system and display apparatus. The invention is characterized in that a chest cavity cover band with one or several aerostats is set at the aforementioned induction system, the aerostats respectively connect with aerating device and display apparatus through manifold assembly. The movement of muscle group generates pressure to aerostats when human breathes, and the extrusion to aerostats makes the air pressure inside of aerostats change, and the change is transferred to display apparatus through manifold assembly, the display apparatus judges and displays the strength, times and staying quality of respiration based on the change of air pressure.
Owner:李省超
Bionic fish type suspended aerostat for near space
The invention provides a bionic fish type suspended aerostat for a near space. The bionic fish type suspended aerostat comprises an outer skin, a tail fin, and one secondary airbag or more than one secondary airbags for inflating air, wherein the outer skin is formed by a plurality of alternatively-connected first rigid ribs and a first flexible rib; the tail fin is formed by a plurality of alternatively-connected second rigid ribs and a plurality of second flexible ribs; a buoyancy working medium is filled in the outer skin; the first rigid ribs and the second rigid ribs are manufactured by using a plurality of layers of Kapton thin films to laminate curing colloid; when the suspended aerostat blasts off until the air in the secondary airbags is discharged out and is in a stable form, the first rigid ribs and the second rigid ribs are cured in a rigid thin-wall shell structure in a space heat radiation condition; and the first flexible rib, the second flexible ribs, and the secondary airbags are made of a high polymer composite thin film material.
Owner:SHANGHAI JIAO TONG UNIV
Systems and methods for attitude control of tethered aerostats
ActiveUS20130075523A1Reduce needEnsure system stabilityNon-rigid airshipsBalloon aircraftsAttitude controlControl system
A control system for a tethered aerostat is provided, where up to two rotational and at least one translational degree of freedom are controlled to setpoints through the variation of tether lengths by an actuator system. The term tether includes a single tether, a tether group or a sub section of tether controlled by an individual actuator. Accurate rotational and translational control is essential for the successful operation of an aerostat under several applications, including surveillance, weather monitoring, and power generation. For a given use case, the controller can be constructed and arranged to manage the tradeoff between several key performance characteristics, such as transient performance, steady-state pointing accuracy, tether tension regulation, and power generation.
Owner:ALTAEROS ENERGIES
Self Transportable Aerostat System
ActiveUS20140077030A1Anchoring installationsBalloon aircraftsMarine engineeringElectrical connection
A self transportable aerostat system comprising: a first motorized mooring truck; a mooring tower removably attached to a base assembly of the first mooring truck, generally vertically arranged in relation to the bed of the first mooring truck; a proximal and distal boom deck removably attached to the base assembly; a flying sheave for redirecting a tether carried by the base assembly and attachable to an aerostat; a second motorized mooring truck attachable to the outer edge of the distal boom; and, an aerostat truck having an electrical connection for connecting to the first mooring truck and having an aerostat storage compartment for storing the aerostat is a retracted configuration.
Owner:TOKAI COMMUNICATIONS
Aerostat deployment apparatus
InactiveUS6883749B2Control rateAvoid damageAnchoring installationsNon-rigid airshipsEngineeringMechanical engineering
An apparatus for inflating and deploying an aerostat having a nose section and a tail section includes a cylindrical container for housing the deflated portion of the aerostat. The cylindrical container is formed with an open end and defines a longitudinal axis. A feed hose extends from a gas source, through the container to a hose end that projects axially from the open end of the container. The deflated aerostat is initially folded to juxtapose the nose and tail of the aerostat. Next, the nose of the aerostat is attached to the feed hose end and the remaining portion of the aerostat is folded and inserted into the container. As the tail section is inflated outside of the container, aerostat cloth is drawn from the container. A mechanism is provided to control the release of cloth from the container and maintain pressure in the inflating aerostat within a predetermined range.
Owner:INFORMATION SYST LAB
Integrated electro-optical fluid rotary joint
An integrated electro-optical fluid rotary joint has been invented in which optical signals, electrical power, and / or signal(s), as well as fluids can be simultaneously transmitted across a common rotary-stationary interface between two relatively rotatable members for such applications, as a tethered aerostats, and tethered ROV. It consists of a main stator, a main rotor rotatable relative to said main stator. An electrical rotary joint, or slip ring, a fiber optical rotary joint, and a fluid rotary joint are integrated together on the main stator and main rotor. As a result, when the main rotor rotates relative to the main stator, optical signals, electrical power, and / or signal(s), as well as fluids from the main rotor can be transmitted to the main stator, and vise versa.
Owner:PRINCETEL
Sail-equipped amphibious aerostat or dirigible
InactiveUS20150203184A1Reduce maintenanceFriendly operating environmentNon-rigid airshipsRigid airshipsHydrogenFlight vehicle
A highly maneuverable craft or airship with aerostatic lift which may be manned or operated autonomously and remotely consists, in particular, a sail or similar device for main propulsion; the aerostat or dirigible sustains lift from gasbags containing helium or hydrogen or other similar lighter-than-air gas. Further, said aerostat may be mounted with a wind turbine for electrical power generation and mechanical operation; and, ballast tanks and landing gear to enable amphibious capability.
Owner:SARMIENTO JOSEPH NILO
Lighter-Than-Air Fractal Tensegrity Structures
ActiveUS20170021907A1Easily maintain consistent altitudeHigh altitudeRigid airshipsEngineeringTension member
The purpose of this invention, which is referred to as a vacuustat, is to generate buoyancy in the atmosphere by means of an evacuated or partially evacuated container, rather than by using a lighter-than-air lifting gas such as hydrogen or helium. This particular vacuustat design comprises a flexible airtight membrane supported by a fractal tensegrity internal structure consisting of a relatively small mass of compressive members forced into higher-order buckling modes through use of tension members. The advantages of such a design over conventional aerostats include superior buoyancy control for ascent and descent, greatly increased flight endurance, and cost-effectiveness in operation. This particular vacuustat design has a much greater lifting efficiency than previous designs, and should also be easier and more cost-effective to manufacture.
Owner:RAPPORT NATHAN
Clustering method for air mobile node and air-ground integrated clustering system
InactiveCN101123761AReduce the amount of cluster computingIncrease speedData switching by path configurationRadio/inductive link selection arrangementsTime conditionCluster systems
The invention relates to a cluster method for an air mobile node comprising the following steps: track forecast about the air mobile node is implemented; the air mobile nodes can be divided into groups in advance in ground station with the result of track forecast; the grouping result is sent to the air mobile node; the air mobile node references the grouping result and makes cluster adjustment considering aerial real-time condition. The cluster method can effectively improve stability and flexibility of near-space cluster and reduce calculation amount of aerial high-speed mobile node. The invention also relates to an air-ground integration cluster system, comprising a ground station, an aerostat and an air mobile node, wherein, the aerostat is used for connecting the ground station and the air mobile node, information transferring function between the two points is executed when the aerostat goes up and treatment of cluster adjustment is processed selectively when the aerostat goes down. Within the system, the aerostat not only executes transferring function, but also bears part of calculation amount to undergo selective treatment, thereby ensuring real-time and high efficiency of communication between air and ground.
Owner:BEIHANG UNIV
High altitude space launcher
InactiveUS20180134414A1Less velocityShooting angleRocket launchersLaunch systemsElectric forceRocket
Disclosed is a high altitude space launcher system for transferring payloads from surface to orbit at a significantly lower cost than conventional rockets. It comprises a aerostat lifted one stage light gas gun operating in stratosphere that shoots rocket assisted projectiles containing payload at near orbital velocities to a low angle trajectory. Alternatively, to launch acceleration sensitive payloads such as astronauts the light gas gun is replaced with a muzzle loaded conventional gun that shoots a single stage rocket at a much lower velocity. The system is mostly static structure, attached to a tether-elevator that moors it to land or a ship and provided it with electricity and lifts the projectiles to the gun.
Owner:ALIKOUHI ABBAS
Unmanned aerostat system
InactiveCN104139845ASolve the weakness of poor battery lifeWeakness implementation with poor enduranceRigid airshipsGas-bag arrangementsPropellerRocket
The invention provides an unmanned aerostat system which is efficient and can fly for a long time. The unmanned aerostat system comprises a bullet portion (1), a rod body section (2) and a propelling section (3). The bullet portion (1) comprises two hollow shells (4) and an air bag (5), wherein the shapes of the two shells (4) are identical. The rod body section (2) comprises a hollow cylindrical central rod body (14), three rod body outer plates (8), three rod body outer plate connecting mechanisms (9), a groove-shaped propeller chamber (10), a rod-shaped propeller rod (11), a double-blade propeller (12), and an internal device (13), wherein the rod-shaped propeller rod (11) extends out from the groove-shaped propeller chamber (10). The propelling section (3) is a rocket booster containing fuel. The unmanned aerostat system can collect information of a local area and transmit the information for a long time.
Owner:AIR FORCE UNIV PLA
Natural heat and sail driven aerostat system with controllable track
The invention relates to a natural heat and sail driven aerostat system with a controllable track. An upper covering and a lower covering are welded to form a main air bag which is filled with the air. As the outer surface of the upper covering and the outer surface of the lower covering are coated with heat control coatings, solar radiant heat and infrared radiant heat of the surface of the earth are absorbed, so that the temperature of the air in the main air bag is raised and floating force is generated; an air valve is installed on the top of the main air bag and started and closed by receiving instructions of a device load cabin so as to control the height of the whole system; the device load cabin is connected to the lower portion of the main air bag by tying a rope in a hanging mode, the lower portion of the device load cabin is connected with a supporting arm through a deviation control cable, and a measurement control module, a pneumatic sail face and a vector thruster are arranged on the supporting arm. The stressed direction of the pneumatic sail face is crossed with the action direction of the vector thruster in an orthogonality mode. The measurement control module receives the instructions sent by the device load cabin and controls starting and closing of the vector thruster and the rotation angle of the supporting arm.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY
Long mission tethered aerostat and method of accomplishing
ActiveUS8485465B2Reducing reliance on ballonetsReducing the demands on blowersNon-rigid airshipsMovable targetsEngineeringGround station
Owner:STRATOCOMM CORP
Aerostat modal testing method and system
The invention relates to the technical field of aerostat modal tests, in particular to an aerostat modal testing method and an aerostat modal testing system. The aerostat modal testing method at least comprises the steps of: lifting and suspending an aerostat in an enclosed space; respectively selecting a nose cone position and a nacelle position of the aerostat as excitation points; dividing the aerostat into a plurality of cross sections; arranging a plurality of sensors on each cross section; exciting the excitation points at the nose cone position and the nacelle position respectively; and acquiring an excitation signal and a vibration signal generated during the excitation process. The aerostat modal testing system at least comprises an exciter, sensors, an acquisition instrument and a computer. The aerostat modal testing method and the aerostat modal testing system are used for determining the inherent frequency and vibration mode of the aerostat so that the aerostat can avoid resonance during the design process, and making clear of the responding situations of the aerostat to different dynamic loads.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
Telescopic truss structure and manufacturing method thereof
InactiveCN102295071ASolve assembly problemsSolve storage problemsFuselage framesStructural engineeringEngineering
The invention discloses a telescopic truss structure and a manufacturing method thereof. The telescopic truss structure is composed of a plurality of truss units. A truss unit comprises three longitudinal main beams, three traversal ribs and three oblique ribs. Between the truss units, the longitudinal main beams serve as the telescoping structures, and the oblique ribs are two soft high-strength pulling cables. According to the invention, the whole telescoping operation process of the novel telescopic novel truss structure is simple, the labor requirement is low, the efficiency is high, and assembling, storing and transporting problems of a giant aerostat truss structure caused by a large dimension are solved.
Owner:BEIHANG UNIV
Large-scale aerostat with metal structure
InactiveCN102030099ASolve solidFix security issuesRigid airshipsGas-bag arrangementsWind drivenNacelle
The invention relates to a large-scale aerostat with a metal structure, which mainly comprises an aerostat main body, an arc-shaped connecting belt, a solar battery, a horizontal connecting belt, a vertical connecting strip, a load, a winding engine, a mooring rope, a nacelle, a positioning rope, a horizontal wing, a vertical wing, a power machine, a screw propeller, a platform, a supply airship, a wind driven generator and light gas, wherein the aerostat main body is manufactured by adopting a thick metal plate; the greater buoyancy is generated by increasing the volume of the aerostat to offset the personal weight and the weight of the load; and mutually-independent air chambers are formed by adopting sheeting materials in the aerostat, and the sheeting material is connected with the inner wall of the aerostat main body. Therefore, the large-scale aerostat which has long service and high damage-resisting capability, is difficult to leak the gas, can take hydrogen as filling gas safely and has the metal structure is realized so as to pave a way for realizing aerial hotels, aerial cities, aerial solar power stations and solar power station wind power stations.
Owner:任永斌
Aerostat airbag detection system based on digital speckle correlation method
InactiveCN102313746AWith NDTWith full field measurementOptically investigating flaws/contaminationFluid-tightness measurement using lightNon destructiveSpeckle correlation
The present invention discloses an aerostat airbag detection system based on a digital speckle correlation method, and belongs to the technical field of the aircraft detection, wherein the aerostat airbag detection system is applicable for detecting defects and leaks on the aerostat airbag surface. The detection system comprises a main control platform, a track apparatus, an image acquisition unit, a loading device and a data processing unit. According to the present invention, during detecting, the track apparatus providing with a camera is provided for carrying out overall shooting for the aerostat airbag; then the pressure difference between the inner and the outer of the airbag is changed through controlling the loading device on the airbag to enable the airbag to be deformed; then the overall shooting is performed again for the deformed airbag; finally, the digital speckle correlation technology is adopted for processing the two shot images to obtain the displacement and the strain distribution of the airbag surface so as to realize the detections of the defects and the leaks on the airbag. The system has characteristics of non-destructive detection, full field detection, high precision, quantification and automation, and provides a new solution scheme for detection of the aerostat airbag performance.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Aerostat mooring platform at stratosphere
PendingCN106585947AIncrease net buoyancyConvenient ascentLighter-than-air aircraftMarine engineeringMooring line
The present invention provides an aerostat mooring platform at the stratosphere. The aerostat mooring platform at the stratosphere comprises intermediate aerostats and a top aerostat which are successively connected to a mooring line. The mooring line is fixed to a ground mooring line deploying and retracting device, and the intermediate aerostats are slideably connected to the mooring line through a height adjustment device. By applying the aerostat mooring platform at the stratosphere, the net buoyance of the aerostats can be effectively improved, and the mooring platform can suspend at the stratosphere for a longer period.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
Systems and methods for attitude control of tethered aerostats
InactiveUS20160139601A1Reduce needSystem stabilityNon-rigid airshipsBalloon aircraftsAttitude controlControl system
A control system for a tethered aerostat is provided, where at least one rotational and at least one translational degree of freedom are controlled to setpoints through the variation of tether lengths by an actuator system. The term tether includes a single tether, a tether group or a sub section of tether controlled by an individual actuator. Accurate rotational and translational control is essential for the successful operation of an aerostat under several applications, including surveillance, weather monitoring, communications, and power generation. For a given use case, the controller can be constructed and arranged to manage the tradeoff between several key performance characteristics, such as transient performance, steady-state pointing accuracy, tether tension regulation, and power generation.
Owner:ALTAEROS ENERGIES
Flexible netlike solar battery array for stratospheric aerostat
ActiveCN103280472AImprove power conversion efficiencyMeet application needsPhotovoltaic energy generationSemiconductor devicesSolar batteryDesign methods
The invention provides a flexible netlike solar panel array for a stratospheric aerostat. The solar battery array is based on efficient rigid solar batteries, through a 'fish scale' netlike design method, lightened rigid packaging is carried out on the monolithic efficient rigid batteries, so as to form a monolithic solar battery module; the monolithic solar panel module is installed on a flexible net which is weaved by using flexible fabric and is fitted on the surface of the aerostat; and serial and parallel cables among the rigid batteries and a final main transmission cable are built in each pipeline positioned on the flexible net. According to the scheme, the aim of efficient use of the solar battery array is fulfilled, the flexible net for hanging and installing the rigid solar batteries integrates the functions of an installation substrate, a transmission cable pipeline and a boat body strengthening part; and when application requirements are met, the system composition and total weight are reduced to the maximum degree. In addition, the flexible netlike solar panel array can be designed into a whole type or a sectional combined type according to practical application requirements.
Owner:BEIHANG UNIV
Device for on-line recovering and purifying helium in inner capsule of aerostat
InactiveCN102311104ALong working hoursReduce dismantling costsNoble gas compoundsEngineeringHigh pressure
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Automatic inflating and deflating air pressure adjusting system of air bag of aerostat
ActiveCN103287567AWon't happenNo human intervention requiredGas-bag arrangementsBrushless motorsControl signal
The invention relates to an air pressure regulating system of an air bag of an aircraft, in particular to an automatic inflating and deflating air pressure adjusting system of an air bag of an aerostat. The system comprises a main air bag, an auxiliary air bag and an air pressure adjusting device. The air pressure adjusting device comprises a pressure difference monitor connected with a sensor and an inflating and deflating controller composed of a pulse width signal generator, an deflating relay and an inflating relay; control signals outputted by the pressure difference monitor are connected with control coils of the inflating relay and the deflating relay respectively, and control signals outputted by the inflating and deflating controller are connected with a fan and a steering engine. The system has the advantages that change values of air pressure differences in the air bags are detected by the sensor and compared to a set upper limit value and a set lower limit value by the pressure difference monitor, actuating signals of the relays are outputted, an internal circuit of the pulse width signal generator generates output potential, and control signals are outputted so as to control start and stop of the fan and the steering engine respectively; closed-loop control inflating and deflating air pressure difference adjusting effect is good; an adopted steering engine control valve is capable of saving power as compared with existing electromagnet control valves; an adopted brushless motor is safer than existing brush motors, and fire hazards are avoided.
Owner:QINGDAO FEIYU AEROSPACE SCI & TECH
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