Adjustable damping valve arrangement

US8978844B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Steffen Heyn · Niederwerrn, DE
• Markus Güther · Schweinfurt, DE

Key dates

• Filing date: Jun 19, 2013
• Grant date: Mar 17, 2015
• Expiry date: Jun 19, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/461
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An adjustable damping valve arrangement for a vibration damper comprises an actuator which exerts an actuating force on an auxiliary valve body of an auxiliary valve. The auxiliary valve influences a closing force on a main stage valve. A pressure depending on the pressure level in a working space of the vibration damper acts on at least one pressure-impinged closing surface of the main stage valve via a flow connection. The flow connection is carried out so as to be functionally parallel to an incident flow of the main stage valve, and a flow-in opening of the flow connection is oriented at an angle of at least 60° to the flow direction into the main stage valve so that only a static pressure acts on the closing surface of the main stage valve.