Patent ID: 8443948

Claim:
A vibration damper comprising: a cylinder having a first end and a second end and a plurality of inflow ports offset in an axial direction between the first and second ends; a displacer configured for translational movement in the cylinder; a work piston coupled to the displacer, the piston dividing the cylinder into two work spaces; a first bypass channel configured for movement of the displacer in a first direction substantially parallel to the cylinder, the first bypass channel having a plurality of fluid connections corresponding to a first set of the plural inflow ports; a second bypass channel configured for movement of the displacer in a second direction opposite the first direction substantially parallel to the cylinder, the second bypass channel having a plurality of fluid connections corresponding to a second set of the plural inflow ports; and a damping valve having a check valve arrangement arranged in each of the plural inflow ports, the plural damping valves configured for fluidic connection between one of the two work spaces and one of the first and second bypass channels, wherein the plural damping valves are arranged in a common housing, the housing having a fluid connection to at least one of the first and second bypass channels.