Pneumatic spring with oscillation damper adjusted as a function of the support pressure
First Claim
1. A spring strut comprisingan oscillation damper having a container and a damping device which can be modified as a function of pressure, an unrolling piston fitted to the container, a U-type bellows bounding a spring space, said bellows riding on the unrolling piston and being connected to one of the container and the unrolling piston, and a duct which pneumatically connect the spring space and the damping device, said duct being configured without a hose and being integrated into the spring strut, said duct having a section which is formed by the unrolling piston.
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Accused Products
Abstract
Spring strut with a pneumatic spring and an oscillation damper which can be adjusted as a function of the support pressure. The pneumatic spring has a spring space bounded by a U-type bellows, which spring space is pneumatically connected to a damping device which can be adjusted as a function of a support pressure. A component which having a duct connects the spring space and the damping device is embodied without a hose and is integrated in the spring strut in such a way that it does not form any essential surface change in an unrolling piston associated with the U-type bellows and the unrolling piston forms at least a part of this duct.
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Citations
20 Claims
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1. A spring strut comprising
an oscillation damper having a container and a damping device which can be modified as a function of pressure, an unrolling piston fitted to the container, a U-type bellows bounding a spring space, said bellows riding on the unrolling piston and being connected to one of the container and the unrolling piston, and a duct which pneumatically connect the spring space and the damping device, said duct being configured without a hose and being integrated into the spring strut, said duct having a section which is formed by the unrolling piston.
Specification