Flow-control valve

US5996615A · kind A · utility

Assignee

• Mannesmann Rexroth AG · DE

Inventors

• Juergen Zuegner · Rieneck, DE
• Karl Cords · Partenstein, DE
• Hans-Ulrich Mueller · Pfedelbach, DE
• Michael Schulte · Madison, US

Key dates

• Filing date: Jul 14, 1998
• Grant date: Dec 7, 1999
• Expiry date: Jul 14, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7788
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a 2-way flow control valve whereby a constant hydraulic fluid volume flow may be adjusted by serial arrangement of a restrictor orifice and a control orifice. In the case of a reverse flow through the flow control valve of the present invention, a check actuating element of the flow control valve may be displaced against the bias of its own check spring in such a way that a bypass channel which bypasses the restrictor orifice can be controlled open.