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:
Mar. 15, 2022
Filed:
Mar. 21, 2018
Applicant:
Siemens Aktiengesellschaft, Munich, DE;
Inventors:
Francis Ladru, Berlin, DE;
Thorsten Schulz, Berlin, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/20 (2006.01);
U.S. Cl.
CPC ...
F01D 5/20 (2013.01); F05D 2230/31 (2013.01); F05D 2240/55 (2013.01); F05D 2300/2118 (2013.01); F05D 2300/514 (2013.01); F05D 2300/6111 (2013.01);
Abstract
The invention relates to a ceramic sealing system between a rotor blade () and a housing (I). A small porous zirconium oxide layer (II) on a turbine rotor blade, which zirconium oxide layer faces a ceramic layer system (″) of higher porosity, achieves durable sealing systems. The housing (I″) has a metal substrate (), a metal adhesion-promoting layer (), and a thick, outer, ceramic layer (″) based on zirconium oxide, in particular having a porosity 2≥14%.