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:
Aug. 11, 2015
Filed:
Feb. 29, 2012
Brian Chandler Barr, Schenectady, NY (US);
Brian David Keith, Cincinnati, OH (US);
Gregory John Kajfasz, Cincinnati, OH (US);
Prem Venugopal, Niskayuna, NY (US);
Brian Chandler Barr, Schenectady, NY (US);
Brian David Keith, Cincinnati, OH (US);
Gregory John Kajfasz, Cincinnati, OH (US);
Prem Venugopal, Niskayuna, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A turbine stage includes a row of airfoils joined to corresponding platforms to define flow passages therebetween. Each airfoil includes opposite pressure and suction sides and extends in chord between opposite leading and trailing edges. Each platform has a scalloped flow surface including a purge trough commencing tangentially in a blend area of the platform. The purge trough extending axially toward the suction side of the airfoil, aft of the leading edge, to channel a purge flow.