A method for testing the tightness of a fuel supply system of a motor vehicle is provided. The fuel supply system includes a volume-changing element provided in the fuel tank, the volume of which volume-changing element is in contact with the environment. The fuel tank is customarily sealed off against the environment by way of a valve unit. For testing the tightness, a differential pressure with respect to environment is generated in the tank by way of a gas conveying device, sequentially and thus not simultaneously, the volume-changing element being sealed off against the environment, and the volume-changing element not being sealed off against the environment, a differential pressure with respect to environmental pressure is generated in the volume-changing element or in the tank. The differential pressures are maintained and monitored over a certain period of time, and if after this period of time, the differential pressures still exceed a certain threshold value, a sufficient tightness of the fuel supply system is concluded.


    Access

    Download


    Export, share and cite



    Title :

    VERFAHREN ZUM ÜBERPRÜFEN DER DICHTHEIT EINER KRAFTSTOFFVERSORGUNGSANLAGE


    Additional title:

    METHOD FOR TESTING THE TIGHTNESS OF A FUEL SUPPLY SYSTEM
    PROCÉDÉ DE CONTRÔLE DE L'ÉTANCHÉITÉ D'UN SYSTÈME D'ALIMENTATION EN CARBURANT


    Contributors:

    Publication date :

    2019-07-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF



    VERFAHREN ZUM ÜBERPRÜFEN DER DICHTHEIT EINER KRAFTSTOFFVERSORGUNGSANLAGE

    ARRAS EMMANUEL / HUBER MARKUS | European Patent Office | 2019

    Free access

    Verfahren zum Überprüfen der Dichtheit einer Kraftstoffversorgungsanlage

    ARRAS EMMANUEL / HUBER MARKUS | European Patent Office | 2017

    Free access

    VERFAHREN ZUM ÜBERPRÜFEN DER DICHTHEIT EINER KRAFTSTOFFVERSORGUNGSANLAGE

    ARRAS EMMANUEL / HUBER MARKUS | European Patent Office | 2017

    Free access

    Verfahren zum Überprüfen der Dichtheit einer Kraftstoffversorgungsanlage

    ARRAS EMMANUEL / HUBER MARKUS | European Patent Office | 2017

    Free access

    VERFAHREN ZUM ÜBERPRÜFEN DER DICHTHEIT EINER KRAFTSTOFFVERSORGUNGSANLAGE

    ARRAS EMMANUEL / HUBER MARKUS | European Patent Office | 2017

    Free access