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:
Jun. 27, 2006
Filed:
Apr. 22, 2004
Jay A. Morrison, Oviedo, FL (US);
Harry A. Albrecht, Hobe Sound, FL (US);
Yevgeniy Shteyman, West Palm Beach, FL (US);
Thomas Barrett Jackson, Portland, OR (US);
Jay A. Morrison, Oviedo, FL (US);
Harry A. Albrecht, Hobe Sound, FL (US);
Yevgeniy Shteyman, West Palm Beach, FL (US);
Thomas Barrett Jackson, Portland, OR (US);
Siemens Power Generation, Inc., Orlando, FL (US);
Abstract
An airfoil () having a continuous layer of ceramic matrix composite (CMC) material () extending from a suction side () to a pressure side () around a trailing edge portion (). The CMC material includes an inner wrap () extending around an inner trailing edge portion () and an outer wrap () extending around an outer trailing edge portion (). A filler material () is disposed between the inner and outer wraps to substantially eliminate voids in the trailing edge portion. The filler material may be pre-processed to an intermediate stage and used as a mandrel for forming the outer trailing edge portion, and then co-processed with the inner and outer wraps to a final form. The filler material may be pre-processed to include a desired mechanical feature such as a cooling passage () or a protrusion (). The filler material may include an upper layer () and a lower layer () separated by an intermediate layer () that extends to between the inner wrap and the outer wrap along the suction and/or pressure sides.