shows that two flow channels 21 are provided in the piston plate 17 when the working piston 12 is pressed into the cylinder 11 the fluid 13 will be forced to flow through the flow channels 21 in the process the fluid will be displaced from the first chamber right of the piston plate 17 into the second chamber left of the piston plate 17 when the working piston 12 is returned the fluid 13 will flow back into the first chamber fig4 shows the absorber unit 8 according to the disclosure in a retracted position wherein the docking assembly 7 is pushed against the mounting flange 19 in fig4 the working piston 12 has passed the complete damping path x whereby the docking assembly 7 is lying against the mounting flange 9 here the working piston 12 is inserted in the cylinder 11 corresponding to the length of the damping path x the compression force onto the fluid 13 prestressed in the cylinder 11 has thereby increased whereby additional energy is stored in the fluid 13 in fig4 the load l applied from outside is higher than the force f originally applied by the prestressed fluid 13 thereby the working piston 12 is pushed into the cylinder 11 the working piston 12 is completely returned to its original position according to fig3 if the force l acting from outside falls below the compression force f originally applied by the fluid 13 the working piston 12 will then travel back to the extended position as is shown in fig3 fig5 shows a particular embodiment of the absorber unit 8 according to the disclosure the absorber unit 8 has a guiding section 22.