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:
Jan. 12, 2016
Filed:
Jul. 08, 2011
Christian Kowalski, Oberhausen, DE;
Fan Zhang, Oviedo, FL (US);
Uwe Lohse, Remscheid, DE;
Robert W. Sunshine, Hobe Sound, FL (US);
Burkhard Voss, Dorsten, DE;
Christian Kowalski, Oberhausen, DE;
Fan Zhang, Oviedo, FL (US);
Uwe Lohse, Remscheid, DE;
Robert W. Sunshine, Hobe Sound, FL (US);
Burkhard Voss, Dorsten, DE;
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A seal assembly () for a gas turbine engine for controlling air flow between a diffuser () and rotor disks comprising first and second annular flange ends () and an annular seal mid-section () between and operatively connected to the flange ends (). The first and second annular flange ends () abut respective outer frame members () of the diffuser, whereby a fluid flow path is formed between the seal assembly () and the rotor disks (). The first and second end flanges () are composed of a material having a coefficient of thermal expansion that is substantially the same as a coefficient of thermal expansion of the material of the outer frame members (). In addition, the material of the seal mid-section () has a coefficient of thermal expansion that is different than that of the materials of the annular flange ends () and outer frame members ().