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:
Oct. 03, 2006

Filed:

Mar. 30, 2004
Applicants:

Ioannis Alvanos, Springfield, MA (US);

Rajendra Agrawal, South Windsor, CT (US);

Hector M. Pinero, Middletown, CT (US);

Jin HU, South Glastonbury, CT (US);

Inventors:

Ioannis Alvanos, Springfield, MA (US);

Rajendra Agrawal, South Windsor, CT (US);

Hector M. Pinero, Middletown, CT (US);

Jin Hu, South Glastonbury, CT (US);

Assignee:

United Technologies Corporation, Hartford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/12 (2006.01); F01D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A gas turbine engine having a turbine section cooling system is disclosed which is able to cool the turbine section of the gas turbine engine to an optimal operating temperature range, while at the same time not substantially degrading engine performance. The disclosure provides a number of different structures for doing so including the provision of turning foils, turning holes, and turning grooves within a secondary air flow cavity which turns or directs cooling and parasitic leakage air into the turbine section in a direction in substantial alignment with a gas flow path through the turbine section.


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