Slide valve control device and a drive device for use with it

US7775241B2 · kind B2 · utility

Assignee

• CAMERON INTERNATIONAL CORPORATION · US

Inventors

• Klaus Biester · Celle, DE
• Peter Kunow · Berlin, DE

Key dates

• Filing date: Jul 5, 2004
• Grant date: Aug 17, 2010
• Expiry date: Apr 22, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87885
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A valve control device. In some embodiments, the valve control device includes a housing with bore sections and a slide movable relative to the bore sections, first and second flow holes for connection of a feed line from a fluid pressure hose with one actuator, or of the actuator to a return line, wherein in each case one of the connections is made and the other is interrupted, and first and second valve elements assigned to the flow holes, wherein each valve element has a closed position and a connecting position. In the connection position of the first flow hole, the second valve element is in the closed position and pressed onto a valve seat at a bore section. In the connecting position of the second flow hole, the first valve element is in the closed position and pressed onto a valve seat at a bore section.