Hydropneumatic suspension element of a heavy vehicle or a landing set of wheels of an aircraft

A hydropneumatic suspension element for a heavy, and in particular armoured, vehicle or a landing set of wheels of a vehicle such as an aircraft, said element comprising a tubular body for connection to a hub of a wheel and for pivotal connection to an arm pivotally connected to the bottom of a chassis of a vehicle, a rod for pivotal connection to the chassis of the vehicle and slidably mounted in said tubular body, said tubular body containing a gas chamber and a hydraulic liquid chamber, a central ring fixed to said rod and dividing said liquid chamber into two compartments, and a device disposed outside said tubular body for drawing the hydraulic liquid;

• wherein said drawing device comprises a second body fixed laterally on said tubular body, said second body containing a first chamber and a second chamber communicating with each other, two hydraulic liquid circulation conduits arranged in said tubular body, opening onto opposed ends of said hydraulic liquid chamber and communicating with said first and second chambers, said first and second chambers each containing check-means, one of which check-means is adapted to assure the damping of the compression while the other of said check-means is adapted to assure the damping of the expansion.