An air compressor mountable within an annular tire cavity (5) of a pneumatic tire (1) is disclosed. The air compressor (10, 111, 211, 311, 411) comprises an air inlet (112) for receiving air to be pumped into the tire cavity (5), an air compression chamber (113) in fluid communication with the air inlet (112), an air outlet (114) in fluid communication with the air compression chamber (113), a pressure compensation chamber (115) in fluid communication with the tire cavity (5) when the air compressor is mounted within the tire cavity, and a double piston (116, 216, 316, 416) having a shaft (119) and two opposing piston ends (117, 118), the shaft rigidly connecting both piston ends with each other. The first piston end (117) is arranged and movable in the compression chamber (113) and is actuatable by hydraulic pressure between a compression state and an intake state. The second piston end (118) is arranged and movable in the pressure compensation chamber (115) and subject to the pressure of the tire cavity (5) when the compressor is mounted within the tire cavity. Also, a pneumatic tire assembly comprising a tire (1) having an annular tire cavity (5) and such an air compressor is disclosed.


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    Titel :

    Compressor for a pneumatic tire and a pneumatic tire comprising a compressor mounted within the tire cavity


    Weitere Titelangaben:

    Verdichter für Luftreifen und Luftreifen mit einem im Reifenhohlraum montierten Verdichter
    Compresseur d'air pour un pneu et pneu comprenant un compresseur monté dans la cavité du pneumatique


    Beteiligte:

    Erscheinungsdatum :

    01.07.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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