Title:
GAS TURBINE OUTER CASE ACTIVE AMBIENT COOLING INCLUDING AIR EXHAUST INTO SUB-AMBIENT CAVITY
Document Type and Number:
WIPO Patent Application WO/2014/114653
Kind Code:
A3
Abstract:
A gas turbine engine including an outer case and an exhaust gas passage defined within the outer case for conducting an exhaust gas flow from a turbine section of the gas turbine engine. A cooling channel is associated with an outer surface of the outer case, the cooling channel having a channel inlet and a channel outlet. An air duct structure is provided and includes an inlet end in fluid communication with the channel outlet and includes an outlet end in fluid communication with an area of reduced pressure relative to the air duct structure inlet end. An exit cavity is located at the air duct structure outlet end, wherein the exit cavity effects a reduced pressure at the outlet end to draw air from the cooling channel into the air duct.
Inventors:
FINNERAN JOHN W (US)
GRABER DARYL J (US)
LEAGON JONATHAN M (US)
MUNSHI MRINAL (US)
PORTER MATTHEW R (US)
SHTEYMAN YEVGENIY (US)
GRABER DARYL J (US)
LEAGON JONATHAN M (US)
MUNSHI MRINAL (US)
PORTER MATTHEW R (US)
SHTEYMAN YEVGENIY (US)
Application Number:
PCT/EP2014/051177
Publication Date:
September 18, 2014
Filing Date:
January 22, 2014
Export Citation:
Assignee:
SIEMENS AG (DE)
International Classes:
F01D25/14; F01D9/06; F01D25/12; F01D25/16; F01D25/30
Foreign References:
| EP2187019A1 | 2010-05-19 | |||
| EP2261468A1 | 2010-12-15 | |||
| US5201846A | 1993-04-13 | |||
| EP0344877A1 | 1989-12-06 |
Other References:
See also references of EP 2954174A2
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