Damping valve comprising a direction-dependent pilot opening cross-section for a vibration damper

A Damping valve, comprising:

• an inlet opening;
• an outlet opening
• a valve body having at least one through-flow channel for each flow direction of a damping medium through the valve body, wherein each through-flow channel connects the inlet opening to the outlet opening;
• at least one valve disk configured to cover the at least one through-flow channel for each flow direction at the outlet opening, wherein the at least one valve disk is configured for a first volume flow of the damping medium through the valve body;
• at least one pre-orifice formed in the at least one valve disk;
• at least one pre-orifice throttle arrangement arranged at least indirectly adjoining the at least one valve disk and configured to at least partially cover or open the at least one pre-orifice depending on the flow direction of a damping medium, and comprises:
• a plurality of structural component parts arranged coaxial to one another, wherein at least two of the plurality of structural component parts are inseparably connected to one another,
• wherein the pre-orifice throttle arrangement comprises:
• a radially outer spacer ring;
• a radially inner spacer ring;
• a first springing cover disk inseparably connected to the radially inner spacer ring by a bonding engagement and/or positive engagement;
• and
• a second springing cover disk.

A vibration damper comprising:

• a damping valve, comprising:
• an inlet opening;
• an outlet opening
• a valve body having at least one through-flow channel for each flow direction of a damping medium through the valve body, wherein each through-flow channel connects the inlet opening to the outlet opening;
• at least one valve disk configured to cover the at least one through-flow channel for each flow direction at the outlet opening, wherein the at least one valve disk is configured for a first volume flow of the damping medium through the valve body;
• at least one pre-orifice formed in the at least one valve disk;
• at least one pre-orifice throttle arrangement arranged at least indirectly adjoining the at least one valve disk and configured to at least partially cover or open the at least one pre-orifice depending on the flow direction of a damping medium, and comprises:
• a plurality of structural component parts arranged coaxial to one another, wherein at least two of the plurality of structural component parts are inseparably connected to one another,
• wherein the pre-orifice throttle arrangement comprises:
• a radially outer spacer ring;
• a radially inner spacer ring;
• a second springing cover disk;
• and
• a first springing cover disk inseparably connected to one of the radially outer spacer ring and the radially inner spacer ring by a bonding engagement and/or positive engagement.