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. 21, 2006

Filed:

Jun. 18, 2004
Applicants:

Paolo Graziosi, Clifton Park, NY (US);

Kevin Richard Kirtley, Scotia, NY (US);

Inventors:

Paolo Graziosi, Clifton Park, NY (US);

Kevin Richard Kirtley, Scotia, NY (US);

Assignee:

General Electric Company, Niskayuna, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/00 (2006.01); F02C 9/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A bypass channel for use in an inter-turbine transition duct of a gas turbine engine is connected to a suction port disposed upstream of a high-pressure turbine and an injection port disposed downstream of the high-pressure turbine. The flow through the bypass channel is motivated by the natural pressure difference across the high-pressure turbine. The flow out of the injection nozzle is used to energize the boundary layer flow downstream of the high-pressure turbine in order to allow for the use of a more aggressively expanded inter-turbine duct without boundary layer separation.


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