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:
May. 19, 2009
Filed:
May. 05, 2006
Stefan Mazzola, Sanford, FL (US);
Douglas A. Keller, Oviedo, FL (US);
Anthony L. Schiavo, Oviedo, FL (US);
David C. Radonovich, Winter Park, FL (US);
Stefan Mazzola, Sanford, FL (US);
Douglas A. Keller, Oviedo, FL (US);
Anthony L. Schiavo, Oviedo, FL (US);
David C. Radonovich, Winter Park, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
Aspects of the invention are directed to a multi-layer ring seal segment that can incorporate a plurality of material systems. The ring seal segment can include an inner layer, a central layer and an outer layer. The inner layer can be attached to one side of the central layer, and the outer layer can be attached to an opposite side of the central layer. The inner and outer layers can be made of a ceramic matrix composite, such as a hybrid oxide ceramic matrix composite or an oxide-oxide ceramic matrix composite. The central layer can be made of a material that has high shear strength relative to the inner and outer layers. The ring seal segment according to aspects of the invention can take advantage of the benefits of the different materials so as to better withstand the operational loads of the turbine.