Valve which reacts as a function of pressure, especially for a vibration damper

US6305512A · kind A · utility

Assignee

• Mannesmann Sachs AG · DE

Inventors

• Norbert Heinz · Schweinfurt, DE
• Joachim Kuhnel · Dittelbrunn, DE
• Thomas Kutsche · Schweinfurt, DE
• Thomas Manger · Hammelburg, DE
• Thorsten Assiioff · Schweinfurt, DE
• Steffen Heyn · Niederwerrn, DE
• Alfred Wirth · Schweinfurt, DE

Key dates

• Filing date: Jul 27, 2000
• Grant date: Oct 23, 2001
• Expiry date: Jul 27, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2230/183
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pressure operated valve is provided including an adjusting device, a spring and a vent connection. The adjusting device is axially movably arranged in a pressure chamber defined in the valve and comprises a valve body and a pressure intensifier. A space between the valve body and valve face defines a valve passage cross section. The spring is operatively arranged for holding the pressure intensifier in a floating arrangement in the pressure chamber. The pressure intensifier has a first side exposed to a pressure in the pressure connection opening and a second side facing away from the pressure connection opening. The second side of the pressure intensifier and the adjusting device define a low pressure chamber within the pressure chamber. The vent connection is an inflow restrictor arranged between the lower pressure chamber and a space having a lower pressure than the low pressure chamber.