Title:
GAS TURBINE OUTER CASE ACTIVE AMBIENT COOLING INCLUDING AIR EXHAUST INTO A SUB-AMBIENT REGION OF EXHAUST FLOW
Document Type and Number:
WIPO Patent Application WO/2014/114652
Kind Code:
A3
Abstract:
A gas turbine engine including an outer case extending circumferentially around the central longitudinal axis. A cooling channel is associated with the outer surface of the outer case, the cooling channel having a channel inlet and a channel outlet. An air duct is provided including an inlet end in fluid communication with the channel outlet and an outlet end in fluid communication with an exhaust gas flow from a turbine section of the gas turbine engine. An exit structure is located at the air duct outlet end, and the exit structure provides a sub-ambient pressure at the air duct outlet end to induce a flow from the air duct inlet end to the air duct outlet end.
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/EP2014/051164
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 | |||
| EP2497907A2 | 2012-09-12 | |||
| EP0344877A1 | 1989-12-06 | |||
| US5201846A | 1993-04-13 |
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