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. 15, 2011
Filed:
Feb. 27, 2007
Stefan Mazzola, Sanford, FL (US);
Bonnie Marini, Oviedo, FL (US);
Stefan Mazzola, Sanford, FL (US);
Bonnie Marini, Oviedo, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
An airfoil () as may be used in a gas turbine engine includes a ceramic matrix composite (CMC) element () that extends to define a leading edge portion () and chord portion () of the airfoil, and a separately formed but conjoined trailing edge element () that defines a desirably thin trailing edge of the airfoil without the need for using an excessively small bend radius for reinforcing fibers in the CMC element. The trailing edge element may include a plurality of interlock elements () that extend through the trailing edge attachment wall () of the CMC element and provide mechanical attachment there between. Alternatively, the trailing edge element may be adhesively bonded or sinter bonded to the CMC element. A cooling air insert () may be disposed within a cooling air cavity () of the CMC element and may include cooling tubes () that extend into the trailing edge element to deliver cooling air there through.