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:
Jun. 04, 2013

Filed:

Jan. 23, 2007
Applicants:

John R Whurr, Derby, GB;

Richard G Stretton, Loughborough, GB;

David M Beaven, Nottingham, GB;

Nicholas Howarth, Derby, GB;

Inventors:

John R Whurr, Derby, GB;

Richard G Stretton, Loughborough, GB;

David M Beaven, Nottingham, GB;

Nicholas Howarth, Derby, GB;

Assignee:

Rolls-Royce PLC, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 1/00 (2006.01); B63H 11/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

Variation in the available mixing plane areas in an exhaust arrangement of a gas turbine engine enables alteration and configuration for better thermal cycle performance of that engine. A shaped centre fairing is associated with an exit nozzle and a bypass duct such that channels between the fairing, nozzle exit and duct can be adjusted to change the available areas. Such variation is achieved by relative axial displacement, typically of the exit nozzle using an appropriate mechanism.


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