Vacuum valve

US7481417B2 · kind B2 · utility

Assignee

• VAT Holding AG · CH

Inventors

• Thomas Mayer · Reutlingen, DE
• Bernhard Duelli · Übersaxen, AT

Key dates

• Filing date: Feb 2, 2006
• Grant date: Jan 27, 2009
• Expiry date: Aug 6, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K41/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A vacuum valve comprises a conical sealing surface arranged at a valve body, a valve disk at which a conical sealing surface is arranged, and a sealing ring having a first sealing surface and a second sealing surface. The valve disk, the valve body and the sealing ring are made of metal at least in the areas of the sealing surfaces. The valve disk is constructed so as to be curved or angled considered in axial section through the center and encloses an angle of less than 90° with the closing direction in the unloaded state at least in a radial outer portion adjoining the sealing surface. The valve disk has an elasticity such that a displacement of the radial outer edge of the valve disk relative to a point in the center of the valve disk of at least 0.1% of the diameter of the valve disk in direction of the center axis of the valve disk is bought about in the closed position of the valve disk relative to the open position of the valve disk by an elastic deformation of the valve disk.