The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2001
Filed:
May. 03, 2000
Detlef Haje, Bottrop, DE;
Andreas Feldmüller, Bochum, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A turbine casing includes a multilayer casing wall in which an intermediate layer in the form of a non-metallic bulk material, preferably sand, is provided between an inner layer and an outer layer, to cope with high steam states. A method of manufacturing a multilayer turbine casing includes inserting a core representing an intermediate layer into a casting mold while forming a cavity for the inner layer and/or the outer layer. The cavity is then filled with a casting material, with the core expediently remaining as the intermediate layer in the casing wall. Alternatively, first of all a U-shaped profile part is made and an intermediate space formed by the outer layer and the inner layer is filled with the bulk material.