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. 08, 2005
Filed:
Sep. 27, 2002
Stefan Mazzola, Sanford, FL (US);
Keith L. Nickols, Winter Park, FL (US);
Friedrich Rogers, West Palm Beach, FL (US);
W. David Day, Jupiter, FL (US);
Kelly M. Flannery, Juno Beach, FL (US);
Stefan Mazzola, Sanford, FL (US);
Keith L. Nickols, Winter Park, FL (US);
Friedrich Rogers, West Palm Beach, FL (US);
W. David Day, Jupiter, FL (US);
Kelly M. Flannery, Juno Beach, FL (US);
Siemens Westinghouse Power Corporation, Orlando, FL (US);
Abstract
A crack-resistant vane segment assembly member for an industrial turbine engine is disclosed. The vane segment includes at least one internally-cooled body portion and inner and outer shroud portions. The body portions include end regions characterized by blending and transition zones that ensure heat is transferred at a non-crack-inducing rate from the shroud portions to the body portions. The vane segment assembly also includes a cooling arrangement that reduces the impact of thermal gradient-induced stresses acting at the interface between the body portions and shroud portions. The cooling arrangement cooperates with the transition and blending zones to produce synergistically-enhanced crack resistance properties.