The disclosure describes an airlock with a pneumatic orifice, characterized in that the orifice chamber is located inside the tunnel, together with an inactive expansion element made up of a flexible material consisting of an external torus and an internal membrane, which is activated by compressed air produced by compressors placed in a housing.


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    Title :

    AIRLOCK WITH A PNEUMATIC ORIFICE FOR THE VACUUM TRAIN SYSTEM


    Contributors:

    Publication date :

    2021-02-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E21F Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels , SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS / B61B RAILWAY SYSTEMS , Eisenbahnanlagen / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS



    Airlock

    H. R. Linderfelt | NTIS | 1972


    Airlock

    Linderfelt, H. R. | NTRS | 1974


    Positive-pressure airlock system between ship and platform airlock

    HUANG JI / GAN FEIFEI / WU LEI et al. | European Patent Office | 2020

    Free access

    Airlock Entry

    Frickland, P. O. / Cleland, E. L. | NTRS | 1984


    Airlock

    H. R. Linderfelt | NTIS | 1974