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

US10865847B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Harun Tucovic · Schweinfurt, DE
• Oswald Lichtlein · Arnstein, DE
• Eberhard SIMON · Gochsheim, DE
• Helmut Baalmann · Bergrheinfeld, DE

Key dates

• Filing date: Jun 19, 2017
• Grant date: Dec 15, 2020
• Expiry date: Aug 22, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2226/048
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A damping valve includes a valve body has at least one through-flow channel for each flow direction of a damping medium through the valve body. Each through-flow channel connects an inlet to an outlet. a valve disk covers the through-flow channels at the outlet opening the valve disk has a first volume flow of the damping medium through the valve body, at least one pre-orifice in the valve disk and at least one pre-orifice throttle arrangement is arranged at least indirectly adjoining the valve disk and adapted to at least partially cover or open the pre-orifice depending on the flow direction of a damping medium. The pre-orifice throttle arrangement includes multiple structural component parts arranged coaxial to one another, at least two of the structural component parts are inseparably connected to one another.