The invention relates to an oleo-pneumatic shock absorber (1) for a motor vehicle, comprising: - an oil circuit (2) comprising a cylinder (6) and a piston (7) suitable for sliding inside the cylinder (6); - a gas circuit (3) located upstream of the oil circuit (2) and a buffer chamber (4) located between the gas circuit (3) and the oil circuit (2), the buffer chamber (4) comprising a sealed movable wall (5) between the gas and the oil, while the pressure of the gas circuit (3) is increased to bring the vehicle from a low position to a high position; characterised in that the shock absorber further comprises: - a first gas tank (15) at a pressure P1 and a second gas tank (17) at a pressure P2 lower than P1; and in that the gas circuit (3) is brought from a pressure P0 lower than P2, in which the vehicle is in the low position, to the pressure P2, in which the vehicle is in the high position, by successively connecting the first and second gas tanks (15, 17) to the gas circuit (3), and isolating the first tank (15).


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    Title :

    AMORTISSEUR OLÉOPNEUMATIQUE POUR SUSPENSION DE VÉHICULE AUTOMOBILE


    Additional title:

    OLEO-PNEUMATIC SHOCK ABSORBER FOR MOTOR VEHICLE SUSPENSION
    OLEO-PNEUMATISCHER STOSSDÄMPFER FÜR KRAFTFAHRZEUGAUFHÄNGUNG


    Contributors:

    Publication date :

    2025-05-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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