Asea Brown Boveri Ag

Horst Eschenbach

Klaus-Peter Schulz

Uwe Heidtmann

In thermal insulation devices which include a molded part formed of thermal insulation material and a metal housing enclosing the molded part, an evacuation of the thermal insulation device with the aid of a vacuum pump requires a relatively long pumping time. The invention proposes providing groove-like recesses in the molded part for reducing the suction resistance. The groove-like recesses form suction channels together with the wall of the metal housing. Such vacuum thermal insulation devices are used, for example, for thermally insulating high-temperature batteries.

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Waldbrunn, Germany

Horst Eschenbach