Vacuum valve for closing a flow path with a two-part valve disk

US10683942B2 · kind B2 · utility

Assignee

• VAT Holding AG · CH

Inventors

• Christoph BÖHM · Grosswangen, CH
• Michele Tronca · Jona, CH
• Wolfgang Weiss · Ottobrunn, DE

Key dates

• Filing date: Feb 23, 2017
• Grant date: Jun 16, 2020
• Expiry date: Feb 23, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K51/02
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A vacuum valve including a valve housing with seat surrounding a first opening with a sealing surface is disclosed. A valve disk having a first disk section and a second disk section tightly mounted inside an outer boundary of the first disk that is movable parallel to an opening axis. A drive is connected to the first disk section. The first disk section includes a first bearing surface configured to contact the sealing surface in the closed position. The outer boundary has a radially inwardly oriented inner surface. The second disk section has a radially outwardly oriented outer surface configured to contact the inner surface sealing a second contact area. At least for determined radial angles about a center of the valve disk, a first radial distance from the center to the first bearing surface is shorter than a second radial distance from the center to the second contact area.