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:
Feb. 12, 2002
Filed:
Jan. 05, 2001
Norbert Henkel, Düsseldorf, DE;
Uwe Zander, Mülheim an der Ruhr, DE;
Edwin Gobrecht, Ratingen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The present invention relates to a turbine housing ( ) having an inner housing ( ) which is surrounded by an outer housing ( ), the inner housing ( ) and the outer housing ( ) each having a first, upper partial region ( ) and a second, lower partial region ( ), and having an inner-housing outer surface ( ) and an outer-housing inner surface ( ) which are positioned opposite one another, with a distance between them. At least in a part of the first partial region ( ), the inner-housing outer surface ( ) has a lower heat transfer through radiation to the opposite outer-housing inner surface ( ) than at least in a part of the second partial region ( ) of the inner-housing outer surface ( ). This can be achieved by means of suitable surface coatings in the respective regions which have different absorption and/or emission coefficients (a , a ). The result is a temperature compensation between the upper side and the lower side of the corresponding housing ( ), so that distortion of the housing during cooling is avoided.