Unmanned aircraft for telecommunications or other scientific purposes



The invention relates to an unmanned aircraft for telecommunicative or other scientific purposes, which s stationed in determined height, in particular in the stratosphere. The aircraft comprises a gas-filled balloon (11) carrying a platform (10) and means for maintaining the platform position relative to the ground. The balloon (11) carrying theplatform (10) is disposed in the interior of an external balloon (12) of aerodynamical shape, particularly in the stratosphere. At least one low or high pressure insulation chamber (20; 20'; 20'') filled with a medium is arranged between them and encircles the inner balloon (11). The medium used in the insulation chamber is a gas having a low thermal conductivity. The negative effects of the temperature differences are largely compensated so that the inner balloon can be produced from a lighter and cheaper material, thereby increasing durably its longevity.




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Cited By (6)

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    CN-102717887-AOctober 10, 2012北京航空航天大学Near space airship using inflatable wings and tiltable propellers
    CN-102717887-BNovember 25, 2015北京航空航天大学一种采用充气式机翼和可倾转螺旋桨的临近空间飞艇
    CN-102935887-AFebruary 20, 2013徐大来Ground-to-air stratosphere aerospace vehicle and flying platform
    CN-104428201-AMarch 18, 2015谷歌公司Balloon altitude control using density adjustment and/or volume adjustment
    CN-104428201-BNovember 09, 2016谷歌公司利用密度调节和/或体积调节的气球高度控制
    CN-104590540-AMay 06, 2015中国特种飞行器研究所Novel gasbag for airship