Damper valve for vibration damper has pre-opening cross-section formed by at least one high-accuracy aperture formed directly on flow restricting part such as valve seat

摘要

The device (1) has a base body (2) with a valve seat (13) and a spring-elastic valve body (12) that contacts the valve seat of the base body in its rest state, thereby shutting off a flow path through the base body to a pre-opening cross-section, but opens at a defined pressure level. The pre-opening cross-section is formed by at least one high-accuracy aperture (19) formed directly on a flow restricting part such as the valve seat. An independent claim is also included for the following: (a) a method of manufacturing an inventive device.