Thermal insulation to be inserted between two insulating structures

US6501784B1 · kind B1 · utility

Assignees

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• Nabertherm GmbH & Co. Industrieofenbau KG · DE

Inventors

• Alexander Boehm · Dresden, DE
• Clemens Korhammer · Bremen, DE
• Roland Scholl · Laufenbürg, DE
• Bärbel Voigtsberger · Bad Klosterlausnitz, DE
• Lothar Schneider · Biebertal, DE
• Günther Stephani

Key dates

• Filing date: Mar 22, 2001
• Grant date: Dec 31, 2002
• Expiry date: Mar 22, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/261
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a thermal insulation to be inserted between two structures, surfaces, walls or the walls of components which are to be insulated. The thermal insulation consists of an plurality of hollow spheres made up by loose hollow spheres or by hollow spheres which are interconnected by sintered contacts. The ratio of the outer diameter of the hollow spheres to their wall thickness is 5 300. The hollow spheres are made of silicides, silicide composites, metals and intermetals and the alloys thereof, ceramics or glass. When the walls of the hollow spheres have a closed porous structure, the inner pressure in the hollow spheres is between 0 to 0.1 that of the surrounding air pressure at room temperature.