Pressure-limiting valve

US5560343A · kind A · utility

Assignee

• VDO Adolf Schindling AG · DE

Inventors

• Karl-Heinz Werkmann · Maintal, DE
• Frank Reiter · Haan, DE
• Ivan Grgec-Messner · Kelkheim, DE
• Reiner Liebl · Eschborn, DE

Key dates

• Filing date: Oct 21, 1994
• Grant date: Oct 1, 1996
• Expiry date: Oct 21, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7929
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A pressure-limiting valve has a closure member (5) which, in its closed position, rests with initial stress against a valve seat (4) and has, on the side towards the valve seat (4), a shoulder (6) which can be formed by a circumferential flange (7) on the closure member (5). This induces enlargement of the opening stroke upon a slight opening of the closure member (5) as the flow strikes against the shoulder (6).