A double-walled pipe 10 includes an inner wall 16, which bounds a flowpath for a first fluid such as air, an outer wall 18 radially spaced from the inner wall 16 so that there is an annular gap 20 between the inner wall 16 and the outer wall 18; and walls 30 extending in the annular gap 20 between the inner wall 16 and the outer wall 18, such that flow passages 32 are formed in the annular gap 20, through which a temperature-controlled fluid can be circulated to control the temperature of the inner wall. The double-walled pipe 10 is formed by an additive manufacturing process. The walls 30 may be helical walls, defining helical flow passages.


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    Title :

    AIRCRAFT ENVIRONMENTAL CONTROL SYSTEM WITH DOUBLE-WALLED PIPE AND METHOD


    Additional title:

    FLUGZEUGKLIMAANLAGENSTEUERUNGSSYSTEM MIT DOPPELWANDIGEM ROHR UND METHODE
    SYSTÈME DE CONTRÔLE ENVIRONNEMENTAL D'UN AÉRONEF AVEC TUYAU À DOUBLE PAROI ET MÉTHODE


    Contributors:

    Publication date :

    2021-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16L PIPES , Rohre / B22F Verarbeiten von Metallpulver , WORKING METALLIC POWDER / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT



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