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:
Aug. 13, 1996

Filed:

Dec. 23, 1994
Applicant:
Inventors:

Kuo-San Ho, Chandler, AZ (US);

William J Howe, Chandler, AZ (US);

Jeffrey E May, Phoenix, AZ (US);

Assignee:

AlliedSignal Inc., Morris Township, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415115 ; 415116 ;
Abstract

A hot gas recirculation pocket is provided in a gas turbine engine to capture hot gas ingested from an annular hot gas flow path into an internal cooled engine cavity, and to recirculate the ingested hot gas to the hot gas flow path. The engine includes rows of stator vanes and rotor blades mounted in an axially alternating sequence along the hot gas flow path, wherein the rotor blades are peripherally supported by rotor disks disposed within the cooled engine cavity and coupled to a main engine shaft. The recirculation pocket is defined by a contoured shroud mounted within the cooled engine cavity to form a radially outwardly open toroidal-shaped pocket for capturing and recirculating any hot gas ingested through the space between adjacent rows of stator vanes and rotor blades.


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