Valve arrangement, especially for a pneumatic control system

US6129002A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Thomas Lisec · Itzehoe, DE
• Bernd Wagner · Looft, DE
• Martin Kreutzer · Homburg, DE

Key dates

• Filing date: Jun 23, 1997
• Grant date: Oct 10, 2000
• Expiry date: Jun 23, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K2099/009
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A valve arrangement including a micro-valve at an intake opening and a fuer valve at an output opening of a chamber connecting to a pressure-variable switching member, the valves being structured to maintain a closed state by an applied pressure difference. At least the micro-valve is provided with a closure member which can be energized to affect a change-over from one state to another. No energy is required to maintain the changed-over state.