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:
May. 07, 2002
Filed:
Feb. 23, 2001
Applicant:
Inventor:
Judd Dodge Tressler, Mason, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/18 ;
U.S. Cl.
CPC ...
F01D 5/18 ;
Abstract
Radially extending cooling passages are provided in a turbine blade for flowing cooling air from a root portion to a tip portion of the blade. The passages are spaced from one another in a fore-to-aft direction. The aft cooling passages are smaller in diameter than the forward cooling passages. Refresher passageways extend from the larger-diameter passages to the smaller-diameter passages to supplement the cooling flow through outer portions of the aft cooling passages to cool the aft outer span portion of the blade.