VEHICLE HYDROPNEUMATIC SUSPENSION Russian patent published in 2000 - IPC

FIELD: transport engineering; suspensions. SUBSTANCE: proposed hydropneumatic suspension has power hydraulic power with built-in damper, low-and high-pressure air bottles with pneumatic and hydraulic chambers, static sag stabilizing unit including spool, hydraulic pump with bypass valve, pressure and drain main lines, and horizontal and vertical levers of suspension. Suspension is furnished with pneumoelectric valve and control mechanism with contact group. Pneumoelectric valve is fastened on low-pressure bottle housing being placed between pneumatic chambers of low-and high-pressure bottles. Control mechanism is made in form of control element. It has shape of truncated cone whose lower part is made in form of hinge joint secured on axle of suspension horizontal lever, and upper part is made in form of hemisphere. Contact group control pressure sector is arranged in middle of semispherical surface. Contact group is arranged on vertical lever and is electrically connected with pneumoelectric valve. EFFECT: improved smoothness of vehicle running, steerability and possibility of smoothly overcoming single obstacles. 2 dwg