Altitude protection device

Details Altitude protection device Altitude protection device

B - Operations, Transporting

64

D

B64D 10/00 (2006.01) A62B 17/00 (2006.01)

Patent

CA 2541908

The invention relates to a device for protecting pilots and other crew members of high-performance aircrafts, especially people wearing pressure suits (1) according to the hydrostatic principle with veins (6) filled with liquid. Said device consists of a tension pocket (2) located in the region of the back and a pressure pocket (3) located in the abdominal region, airtight bladders (4) being inserted into both pockets. Said bladders (4) contain woven spacer elements (5) defining a minimum air volume in the bladders (4). In the event of falling ambient pressure, the pressure pocket (3) first expands and supports the breathing of the person wearing the device by means of pressure on the viscera, when pressure respiration appliances are used. If the ambient pressure falls further, the tension pocket (2) inflates and increases the peripheral tension in the pressure suit (1). In this way, for example, a decompression syndrome can be counteracted in the event of a sudden pressure drop in the cabin at high altitude.

Dispositif destiné à protéger contre l'altitude les pilotes et les autres membres de l'équipage d'avions à hautes performances, en particulier les porteurs (1) de combinaisons anti-G (1) selon le principe hydrostatique pourvues de veines (6) remplies de liquide, qui est constitué d'une poche de tension (2) située dans la zone dorsale et d'une poche de pression (3) située dans la zone ventrale, des vessies (4) étanches à l'air étant insérées dans les deux poches. Les vessies (4) contiennent des éléments d'écartement (5) constitués d'un maillage qui définissent un volume d'air minimal dans les vessies (4). En cas de chute de la pression ambiante, la poche de pression (3) se dilate et soutient par une pression exercée sur les viscères la respiration du porteur dudit dispositif lors de l'utilisation d'appareils respiratoires à pression. En cas de nouvelle diminution de la pression ambiante, la poche de tension (2) est gonflée et augmente la pression ambiante dans la combinaison anti-G (1). Ce dispositif permet par exemple de contrecarrer un syndrome de décompression en cas de chute soudaine de pression dans la cabine à haute altitude.

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