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公开(公告)号：US20220388624A1
公开(公告)日：2022-12-08
申请号：US17827950
申请日：2022-05-30
申请人： Beihang University
发明人： Kangwen Sun , Xinzhe Ji , Haoquan Liang , Xiao Guo
IPC分类号： B64B1/62 , B64B1/22 , B64B1/64 , B60L8/00 , B60L58/30 , H01M8/0656 , H01M8/04082
摘要： An airship and its long-term floating capacity maintenance method are disclosed. The airship includes an airship capsule and a pod at bottom. A renewable fuel cell and a water tank communicated with each other are arranged in the pod. The water tank is provided with a water inlet connected with a filling aircraft outside the airship. The airship capsule is provided with a solar cell. The interior of the airship capsule is provided with a hydrogen storage bag. The solar cell is electrically connected with the renewable fuel cell. The renewable fuel cell can use electric energy provided by the solar cell to electrolyze water provided by the filling aircraft into hydrogen and supplement the hydrogen to the hydrogen storage bag. The airship can supplement hydrogen to the airship capsule by electrolyzing water to reduce the phenomenon of insufficient gas in the airship capsule.
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公开(公告)号：US20220242548A1
公开(公告)日：2022-08-04
申请号：US17166016
申请日：2021-02-03
申请人： Loon LLC
发明人： Aaron Fan , Ytai Ben-tsvi , Ewout van Bekkum
摘要： Aspects of the technology relate to altitude control and lateral propulsion systems in lighter-than-air (LTA) platforms configured to operate in the stratosphere. For instance, an LTA platform may include an envelope filled with lift gas and a payload for providing telecommunication or video services. A fault or failure condition with one or more components of these systems, or with the envelope of the LTA platform itself, can prevent a high altitude platform (HAP) from operating as intended, or otherwise reduce its useful life. Onboard systems are configured to handle adverse conditions, such as a fault or failure of the envelope, an altitude control system component, or the lateral propulsion system. This may be done according to one or more ranked lists of adverse operational conditions. Different conditions may map to different corrective actions, which may be prioritized in importance, for instance to reduce the chance of catastrophic system failure.
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公开(公告)号：US20220242545A1
公开(公告)日：2022-08-04
申请号：US17725454
申请日：2022-04-20
IPC分类号： B64B1/12 , G08G5/00 , B64B1/10 , B64B1/14 , B64B1/22 , B64B1/24 , B64B1/60 , B64B1/62 , B64B1/66 , B64C39/02 , G05D1/10 , G09F21/04 , B64B1/64 , B64B1/00 , B64B1/18 , G05D1/00 , B64B1/36
摘要： An intelligence, surveillance, and reconnaissance system is disclosed including a ground station and one or more aerial vehicles. The aerial vehicles are autonomous systems capable of communicating intelligence data to the ground station and be used as part of a missile delivery package. A plurality of aerial vehicles can be configured to cast a wide net of reconnaissance over a large area on the ground including smaller overlapping reconnaissance areas provided by each of the plurality of the aerial vehicles.
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公开(公告)号：US11312466B1
公开(公告)日：2022-04-26
申请号：US17475320
申请日：2021-09-14
申请人： LTAG SYSTEMS LLC
摘要： A system for deploying an inflatable structure may include a balloon defining an envelope having a first stiffness, a valve assembly including a control valve, and a reactor defining a chamber having a second stiffness, the valve assembly disposed in fluid communication between the chamber and the envelope, the control valve selectively actuatable to control fluid communication between the chamber and the envelope, the second stiffness of the chamber greater than the first stiffness of the envelope, and the reactor foldable onto itself along the chamber and elastically deformable to unfold in response to an increase in pressure in the chamber.
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公开(公告)号：US20210394886A1
公开(公告)日：2021-12-23
申请号：US17200280
申请日：2021-03-12
申请人： URBAN SKY
发明人： Jared LEIDICH , Andrew F. ANTONIO , Mitch SWEENEY , Daniel W. MCFATTER , Maxmillion James West MCLAUGHLIN
摘要： An example reusable high-altitude balloon system includes a control system configured to initiate a termination sequence by separating a payload from an Earth-facing end of the balloon body. Separation of the payload from the balloon body generates a torque that causes the balloon body to invert and release lift gas through a vent duct, initiating a flight termination sequence that facilitates landing of the reusable balloon system without destroying the balloon body.
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公开(公告)号：US11130557B1
公开(公告)日：2021-09-28
申请号：US17014593
申请日：2020-09-08
申请人： LTAG SYSTEMS LLC
摘要： Devices, systems, and methods are directed to controlling lifting gas in a volume defined by an inflatable structure of an aircraft. For example, controlling lifting gas in the volume of the inflatable structure may account for variations in ambient and tactical conditions experienced by the aircraft over the course of flight, as may be useful for lifting the aircraft to a target altitude and/or carrying out a particular mission. Additionally, or alternatively, controlling lifting gas in the volume of the inflatable structure may facilitate lifting the aircraft using lifting gas generated by reacting stable materials with one another at a launch site in the field. As an example, aluminum may react with water to form a lifting gas including hydrogen and steam. As the steam condenses to water in the inflatable structure, a valve may expel water from the inflatable structure to assist in maintaining buoyancy of the aircraft.
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公开(公告)号：US20210171180A1
公开(公告)日：2021-06-10
申请号：US16708561
申请日：2019-12-10
申请人： Loon LLC
发明人： Cyrus Behroozi , Tyler Gore , Kevin Roach
摘要： Aspects of the technology relate to temperature regulation for high altitude, long duration balloons, such as balloons that operate in the stratosphere for weeks, months or longer. A balloon covering overlays the balloon envelope, providing an opaque or otherwise light-reflective layer with low emissivity that blocks or reflects optical and/or infrared light. Heat from within the envelope is reflected back from the covering toward the envelope, while light from the sun is reflected back towards the environment. An active venting system is employed to draw in cooler ambient air from the external environment while expelling warmer air from within the envelope. Vent and air intake assemblies of the active venting system are actuated in view of current and/or predicted balloon conditions to regulate internal balloon temperature. This approach reduces repeated pressure changes, which can put undue stress on the balloon envelope and adversely affect the operational lifespan of the system.
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公开(公告)号：US20210053682A1
公开(公告)日：2021-02-25
申请号：US16706060
申请日：2019-12-06
申请人： Carl Kuntz
发明人： Carl Kuntz
摘要： A flight vehicle, comprising a frame, the frame having a bottom side configured to receive a user harness; a port wing extending from a port side of the frame and a starboard wing extending from a starboard side of the frame, each wing comprising at least one helium wing bag for containing a wing volume of helium and having a wing port for the passage of fluid in and out of the wing bag; a helium backpack secured to a top side of the frame, the helium backpack comprising an inflatable main helium bag configured for holding a main volume of helium, the main helium bag having a main bag port for the passage of fluid in and out of the main helium bag; at least one pressurized container secured to the frame, the at least one pressurized container being configured to contain liquid helium, and having a container opening for the passage of fluid in and out of the pressurized container; at least one electronic valve coupled to the at least one pressurized container for governing fluid flow through the container opening; and a system of hoses configured to carry a flow of helium, the system of hoses connecting the at least one electronic valve to the main bag port and to the wing ports.
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公开(公告)号：US10745097B2
公开(公告)日：2020-08-18
申请号：US15981793
申请日：2018-05-16
摘要： Kites having an inflatable lifting-body shape with side wings or keels and a horizontal stabilizer or tail to control the angle of attack of the lifting body can be constructed efficiently and economically through a process that builds a laminate of flat sheets, then cuts and joins the sheets to produce an inflatable envelope. Other pieces are affixed to the envelope to produce a finished kite.
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公开(公告)号：US20200088836A1
公开(公告)日：2020-03-19
申请号：US16550203
申请日：2019-08-24
IPC分类号： G01S5/06 , H04W4/02 , G01S19/42 , G01S5/12 , G05D1/04 , B64B1/62 , B64C19/00 , H04B7/185 , B64B1/70 , B64B1/64 , B64B1/44 , B64B1/40
摘要： Innovative new methods in connection with lighter-than-air (LTA) free floating platforms, of facilitating legal transmitter operation, platform flight termination when appropriate, environmentally acceptable landing, and recovery of these devices are provided. The new systems and methods relate to rise rate control, geo-location from a LTA platform including landed payload and ground-based vehicle locations, and steerable recovery systems.
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