F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/117, 60/166
F02C 3/14 (2006.01) F01D 9/02 (2006.01)
Patent
CA 1070961
ABSTRACT OF THE DISCLOSURE An axial flow gas turbine engine is provided with a plurality of combustion chambers distributed circumaxially about the engine axis and a plurality of transition ducts which carry propulsive gases between the burners and an annular turbine inlet at a bulkhead between the combustion and turbine sections of the engine. Support for the transition ducts at the turbine inlet is provided by an outer support ring fixedly secured to the engine bulkhead and an inner support ring which is held by a plurality of struts from the outer support ring. Flexible sealing means extend between the inner support ring and the bulkhead adjacent the turbine inlet to permit the inner ring to expand or contract radially with the transition ducts and at the same time to prevent compressed air from flowing directly into the turbine section. The outer ring and the flexible sealing means are apertured to permit a limited flow of rel- atively cool compressor air to enter the turbine along with the propulsive gases and thereby cool the support structure and the inlet guide vanes of the turbine.
254905
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