Patent ID: 6651995
Filing Date: 2003-11-25
Classification: B60G,F16F

Abstract:
An axle suspension for an air-suspended vehicle having a vehicle chassis, said axle suspension comprising:an upper mounting plate adapted to be connected to the vehicle chassis; a collar disposed on a peripheral edge of said upper mounting plate, said collar having a specified axial length and extending downwardly from said upper plate; a pneumatic spring bellows having a top end connected to a bottom end of said downwardly extending collar; and a plunger piston connected to a lower end of said pneumatic spring bellows so that, when said pneumatic spring bellows is depressurized, one portion of said pneumatic spring bellows rolls over an external peripheral surface of said collar and forms an additional fold, wherein said plunger piston is cylindrical, and a top of said plunger piston is connected to the lower end of said pneumatic spring bellows by a bottom plate.