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.

Date of Patent:
Nov. 14, 2006

Filed:

Dec. 24, 2004
Applicants:

Anna Tam, Clifton Park, NY (US);

Ching-pang Lee, Cincinnati, OH (US);

Kevin Richard Kirtley, Scotia, NY (US);

Ronald Scott Bunker, Niskayuna, NY (US);

Scott Henry Lamson, Menands, NY (US);

Scott Michael Carson, Mason, OH (US);

Inventors:

Anna Tam, Clifton Park, NY (US);

Ching-Pang Lee, Cincinnati, OH (US);

Kevin Richard Kirtley, Scotia, NY (US);

Ronald Scott Bunker, Niskayuna, NY (US);

Scott Henry Lamson, Menands, NY (US);

Scott Michael Carson, Mason, OH (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/22 (2006.01);
U.S. Cl.
CPC ...
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 bulge adjoining the pressure side adjacent the leading edge, and a bowl adjoining the suction side aft of the leading edge.


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