Electrically-actuable valve

US4750520A · kind A · utility

Assignee

• DRAGERWERK AKTIEGESELLSCHAFT · DE

Inventors

• Ulrich Heim · Reinfeld, DE
• Scato Albarda · Groß Schenkenberg, DE

Key dates

• Filing date: Oct 9, 1987
• Grant date: Jun 14, 1988
• Expiry date: Oct 9, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86759
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention is directed to an electrically-actuable valve for a fluid such as a gaseous medium. The valve has a valve closure member disposed adjacent a valve plate provided with a plurality of pass-through openings. The valve closure member and the valve plate are displaceable relative to one another in a direction perpendicular to their surfaces by means of a short-stroke drive whereby a plurality of sealing lines are opened. To arrive at a good valve operation especially for relatively small valves, the valve plate is configured with a plurality of pass-through openings or perforations. The surface of the valve plate facing the valve closure member has a plurality of raised portions formed thereon defining respective receiving surfaces for receiving the closure member in contact engagement therewith to form the sealing lines when the valve is in the closed position. Each two mutually adjacent ones of said raised portions define a flow channel open toward the closure member and communicating with the outlet of the valve. The pass-through openings lie within the raised portions and extend from the other side of the valve plate to the receiving surface and communicate with the ch…