Power plants – Reaction motor – Having afterburner
Reexamination Certificate
2011-06-28
2011-06-28
Cuff, Michael (Department: 3741)
Power plants
Reaction motor
Having afterburner
C060S772000
Reexamination Certificate
active
07966823
ABSTRACT:
A gas turbine engine augmentor includes an augmentor outer casing502and an annular augmentor liner504disposed radially within and radially separated from the augmentor outer casing502to form a generally annular augmentor liner cooling flow path500between the augmentor casing and the annular augmentor liner, and an augmentor flow splitter duct506disposed at the upstream end of the augmentor liner and radially between the augmentor outer casing502and the annular augmentor liner504and defining a splitter flow path520between the annular augmentor liner504and the annular augmentor flow splitter duct506. A method of operating a gas turbofan engine including an augmentor includes directing a portion of fan bypass air into a generally annular augmentor liner cooling flow path500between an augmentor outer casing502and an annular augmentor liner504, directing a portion of the air in the augmentor liner cooling flow path500into a splitter flow path520disposed radially outside the augmentor liner504and maintaining positive backflow pressure margin between air flow within the splitter flow path and the augmentor liner cooling flow path500.
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Caldwell David Elson
Koshoffer John Michael
Andes Esq. William Scott
Armstrong Teasdale LLP
Cuff Michael
General Electric Company
Sung Gerald L
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