This method for recovering gasoline vapours from a fuel tank (4) of an internal combustion engine vehicle and for conveying the gasoline vapours to an air intake line (5) of the combustion engine (3) of the vehicle via a purge pump (10) having a plurality of possible flow rates and a solenoid valve (11) controlling the opening and/or closing of a recirculation circuit (14) for recirculating the air laden with gasoline vapours from downstream of the purge pump (10) to upstream of the pump (10), the opening and closing of the recirculation circuit (14) corresponding respectively to the closing and the opening of a main circuit (12) leading from the solenoid valve (11) to the air intake line (5) of the engine (3), the method alternating the following steps: - recovering and storing the gasoline vapours from the fuel tank (4) in an activated carbon trap (9) positioned upstream of the pump (10); - purging the activated carbon trap (9) to the air intake line (5) of the engine (3); the step of recovering and storing the gasoline vapours corresponding to the operation of the purge pump (10) at a relatively low, non-zero flow rate and to the opening of the recirculation circuit (14), and the purge step, which is triggered when the quantity of gasoline vapours stored in the trap (9) exceeds a predetermined threshold, corresponding to the operation of the purge pump (10) at a relative high flow rate and to the closing of the recirculation circuit (14).


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    Title :

    DISPOSITIF ET PROCÉDÉ DE RÉCUPÉRATION ACTIVE DES VAPEURS DE CARBURANT D'UN RÉSERVOIR D'UN VÉHICULE À COMBUSTION INTERNE


    Additional title:

    DEVICE AND METHOD FOR ACTIVELY RECOVERING FUEL VAPOURS FROM A TANK OF AN INTERNAL COMBUSTION ENGINE VEHICLE
    VORRICHTUNG UND VERFAHREN ZUR AKTIVEN RÜCKGEWINNUNG VON KRAFTSTOFFDÄMPFEN AUS EINEM TANK EINES KRAFTFAHRZEUGS


    Contributors:

    Publication date :

    2024-07-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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