A piston tube assembly (17) for a spring brake actuator (1) includes a first tubular body (35) having a contoured inside surface profile (55) for non-rotationally guiding a running nut (21) of a mechanical release mechanism (19, 21), and an internal breather valve (41) mounted to the piston tube assembly (17) for allowing fluid transport into and out of the piston tube assembly and any volume in fluid communication therewith. The piston tube assembly (17) includes a second tubular body (37) that is of a different material than the first tubular body (35), which encloses the first tubular body (35) and mechanically supports the first tubular body (35), and the internal breather valve (41) is mounted to the first tubular body (35).


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    Title :

    PISTON TUBE ASSEMBLY FOR A SPRING BRAKE ACTUATOR, AND SPRING BRAKE ACTUATOR


    Additional title:

    KOLBENSTANGENANORDNUNG FÜR FEDERSPEICHERBREMSZYLINDER UND FEDERSPEICHERBREMSZYLINDER
    ENSEMBLE TUBE DE PISTON POUR CYLINDRE DE FREIN À RESSORT, ET CYLINDRE DE FREIN À RESSORT


    Contributors:

    Publication date :

    2023-03-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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