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. 23, 2004
Filed:
May. 31, 2002
Jay A. Morrison, Ovledo, FL (US);
Chris Campbell, Orlando, FL (US);
Gary Brian Merrill, Orlando, FL (US);
Jay Edgar Lane, Murrysville, PA (US);
Daniel George Thompson, Pittsburgh, PA (US);
Harry A. Albrecht, Hobe Sound, FL (US);
Yevgeniy P. Shteyman, West Palm Beach, FL (US);
Siemens Westinghouse Power Corporation, Orlando, FL (US);
Abstract
A hybrid vane ( ) for a gas turbine engine having a ceramic matrix composite (CMC) airfoil member ( ) bonded to a substantially solid core member ( ). The airfoil member and core member are cooled by a cooling fluid ( ) passing through cooling passages ( ) formed in the core member. The airfoil member is cooled by conductive heat transfer through the bond (( ) between the core member and the airfoil member and by convective heat transfer at the surface directly exposed to the cooling fluid. A layer of insulation ( ) bonded to the external surface of the airfoil member provides both the desired outer aerodynamic contour and reduces the amount of cooling fluid required to maintain the structural integrity of the airfoil member. Each member of the hybrid vane is formulated to have a coefficient of thermal expansion and elastic modulus that will minimize thermal stress during fabrication and during turbine engine operation.