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. 19, 2013
Filed:
Sep. 09, 2011
George Liang, Palm City, FL (US);
Zhihong Gao, Orlando, FL (US);
Brian J. Wessell, Orlando, FL (US);
Joseph B. Gilliam, Deltona, FL (US);
George Liang, Palm City, FL (US);
Zhihong Gao, Orlando, FL (US);
Brian J. Wessell, Orlando, FL (US);
Joseph B. Gilliam, Deltona, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A vane assembly for a gas turbine engine including an endwall and an airfoil extending from the endwall. An inner rail extends radially inwardly of the endwall, and an overhang portion extends axially from a location of the inner rail to a downstream edge. A recess cavity is defined in the overhang portion between the inner rail and the downstream edge. The recess cavity extends radially into the overhang portion and defines a cavity surface. A plurality of grooves extend radially into the cavity surface and have an elongated dimension extending in a direction from the inner rail toward the downstream edge. A plurality of cooling passages extend axially through the overhang portion, and are located between the grooves.