Disclosed is a drive device, in particular for a flying vehicle such as an aircraft or a spacecraft, comprising at least one engine and a device for cooling the engine, the device for cooling the engine comprising a cryogenic refrigerator, i.e. refrigerating to a temperature between −100° C. and −273° C., the refrigerator comprising a working circuit forming a loop and containing a working fluid, the working circuit forming a cycle comprising, in series: a mechanism for compressing the working fluid, a mechanism for cooling the working fluid, a mechanism for expanding the working fluid and a mechanism for heating the working fluid, the refrigerator comprising a portion for heat exchange between the working fluid expanded in the expansion mechanism and the engine, the refrigerator being configured to produce a first determined maximum refrigeration power, characterized in that the device for cooling the engine further comprises an additional refrigeration system comprising a cryogenic fluid store that can be brought into heat exchange with the refrigerator and/or the engine, the additional refrigeration system being configured to supply a second determined maximum refrigeration power to the refrigerator and/or to the engine when the cryogenic fluid is brought into heat exchange with the refrigerator and/or the engine.


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    Title :

    DISPOSITIF DE MOTORISATION, VÉHICULE VOLANT ET PROCÉDÉ DE REFROIDISSEMENT D'UN MOTEUR


    Additional title:

    DRIVE DEVICE, FLYING VEHICLE AND METHOD FOR COOLING AN ENGINE
    ANTRIEBSVORRICHTUNG, FLIEGENDES FAHRZEUG UND VERFAHREN ZUR KÜHLUNG EINES MOTORS


    Contributors:

    Publication date :

    2024-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F25D REFRIGERATORS , Kühlschränke / 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 / H01F MAGNETS , Magnete / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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