Patent attributes
An air spring for vehicle undercarriages, including an air spring cover and rolling piston. The air spring cover and rolling piston are connected by an air spring bellows. The air spring cover accommodates a first and second clamping ring for clamping the air spring bellows to fix the air spring bellows to the air spring cover. The rolling piston and air spring bellows have a common first air volume. The end of the rolling piston closest to the undercarriage accommodates a third clamping ring to seal the first air volume from the external environment. The air spring cover has a second air volume. The first air volume and the second air volume are sealed off from the external environment. The first air volume is spatially separated from the second air volume. A switch valve enables a first air path to link the second air volume to the first air volume.
