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:
Nov. 07, 2006
Filed:
Nov. 02, 2004
Frank J. Cunha, Avon, CT (US);
Bret Teller, Meriden, CT (US);
Young Chon, Manchester, CT (US);
Dominic Mongillo, West Hartford, CT (US);
Edward F. Pietraszkiewicz, Southington, CT (US);
Frank J. Cunha, Avon, CT (US);
Bret Teller, Meriden, CT (US);
Young Chon, Manchester, CT (US);
Dominic Mongillo, West Hartford, CT (US);
Edward F. Pietraszkiewicz, Southington, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
An airfoil, and in a disclosed embodiment a rotor blade, has a serpentine cooling path. To best account for the Coriolis effect, the paths of the serpentine cooling channel have trapezoidal cross-sections. An area of the rotor blade between a smaller side of the trapezoidal-shaped paths, and a facing wall of the rotor blade has high thermal and mechanical stresses, and is a challenge to adequately cool. A microcircuit, which is a very thin cooling circuit having crossing pedestals, is embedded into the blade in this area. The microcircuit provides additional cooling, and addresses the challenges with regard to cooling these areas.