Abb Research Ltd.

Asea Brown Boveri Ag

Abb Management Ag

Andreas Pfeiffer

Armin Heger

Hugo Wetter

Axel Kranzmann

Urs Benz

Klaus Dobbeling

Roger Suter

Marcel K&ouml;nig

Stefan Reh

The invention relates to a ceramic lining for combustion chambers (,) consisting of several juxtaposed elements (,) that are attached by means of a retention bolt (,) to the inside of a thermally highly stressed metallic support wall (,), whereby at least one insulation body (,) is arranged between the metallic support wall (,) and the ceramic elements (,). It is characterized in that the ceramic elements (,) essentially have the shape of a straight, regular pyramid whose base (,) has n corners, preferably three corners, and faces the combustion chamber (,), and into whose tip the retention bolt (,) is integrated.

Ceramic lining

An arrangement for insulating a wall of a metallic combustion chamber is disclosed. A layer of insulating material is applied to the metallic wall and a plurality of ceramic wall panels are applied over the ceramic insulation material. The wall panels are retained by fastening elements that pass through an opening in the wall panels. The opening in the wall panels has a frusto-conical surface and the engagement surface of the fastening element is at least partially spherical to avoid mechanical and thermal stresses.

In the case of a ceramic liner for combustion spaces, comprising at least one wall element (3), made of refractory structural ceramic and having at least one through-opening (6), and a fastening element (4), consisting of refractory structural ceramic, per opening (6), the fastening element (4) is resiliently fastened by its foot in a metallic holding device (5) fastened on the metallic supporting wall (1). The head (20) of the fastening element (4) rests in the opening (6) in the wall element (3). The wall element (3) is designed in the form of a box, having a base (25) which runs parallel to the metallic wall (1), having an inside wall (23) which surrounds the opening (6) in an annular manner and is supported directly or indirectly on the metallic supporting wall (1), and having outside walls (24) which extend up to the metallic supporting wall (1) without touching the latter.

Ceramic liner

In the case of a ceramic lining for combustion spaces, comprising at least one wall panel (3) of high temperature resistant structural ceramic with at least one through-opening (6) and comprising one fastening element (4) per opening (6), the fastening element (4) being fastened by its foot in a metallic holding device (5) fastened on the metallic supporting wall (1), and the head of the fastening element (4) resting in the opening (6) of the wall panel (3), and there being an insulating layer (2) arranged between the metallic supporting wall (1) and the ceramic wall panel (3), the fastening element (4) consists of high temperature resistant structural ceramic. The wall panel (3) is drawn-in in the direction of the metallic supporting wall (1) in the region of the opening (6) and the fastening element (4) is resiliently linked to a special holding device (5).

Growing community of inventors

Lauchringen, Germany

Andreas Pfeiffer