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

    本发明涉及一种用于机动车辆的油气式减震器(1),该油气式减震器包括:‑油回路(2),该油回路包括缸体(6)和适合在缸体(6)中滑动的活塞(7);‑位于油回路(2)上游的气体回路(3)、以及位于气体回路(3)与油回路(2)之间的缓冲腔室(4),缓冲腔室(4)包括位于气体与油之间的密封的移动壁(5),而气体回路(3)的压力增加以将车辆从低位置升高到高位置;其特征在于,该减震器进一步包括:‑处于压力P1的第一气体储器(15)和处于比P1低的压力P2的第二气体储器(17);并且,通过将第一气体储器和第二气体储器(15,17)相继地连接到气体回路(3)并且隔离第一储器(15),使气体回路(3)从车辆在低位置所处于的低于P2的压力P0达到车辆在高位置所处于的压力P2。


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    Title :

    Oil-gas shock absorber for motor vehicle suspension


    Additional title:

    用于机动车辆悬架的油气式减震器


    Contributors:

    Publication date :

    2025-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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