Patent ID: 8376159

Claim:
A device for damping tractive and compressive forces, wherein the device comprises: a damping system which is held in a housing and which has a resilient unit and a hydraulic damping arrangement, the resilient unit being arranged between a first abutment which is in a fixed position relative to the housing and a second abutment which is displaceable relative to the first abutment, and the hydraulic damping arrangement having a first hydraulic chamber which is filled with hydraulic fluid and a second hydraulic chamber which is filled with hydraulic fluid and which is formed between the first hydraulic chamber and the second abutment, and a piston rod which is displaceable in the longitudinal direction relative to the housing and having a piston head which is formed in the piston rod's end region, wherein the piston head is held in the first hydraulic chamber in such a way as to be displaceable relative to the first hydraulic chamber and, wherein when the piston rod undergoes a longitudinal displacement relative to the first hydraulic chamber, the piston rod divides the first hydraulic chamber into a front hydraulic-chamber region remote from the piston rod and a rear hydraulic-chamber region adjacent the piston rod, wherein the hydraulic damping arrangement has a first transfer-flow system via which hydraulic fluid is able to flow from the front hydraulic-chamber region via at least one multiplier valve into the rear hydraulic-chamber region and into the second hydraulic chamber when there is a longitudinal movement of the piston head relative to the first hydraulic chamber in the direction of the front hydraulic-chamber region, and wherein the hydraulic damping arrangement has a second transfer-flow system via which hydraulic fluid is able to flow from the rear hydraulic-chamber region and the second hydraulic chamber via a ball non-return valve into the front hydraulic-chamber region when there is a longitudinal movement of the piston head relative to the first hydraulic chamber in the direction of the rear hydraulic-chamber region.