Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1988-12-12
1990-09-11
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60760, 60 3983, F23R 300
Patent
active
049551922
ABSTRACT:
The large mass of a containment ring for a gas turbine and the cost of the material fabricating the same may be minimized in a gas turbine including a rotor 12 having a radial inflow turbine wheel with blades 14 and a nozzle 50 adapted to direct hot gases at the blades 14 to cause rotation of the rotor 12. An annular combustor 18 for supplying gases to the nozzle 50 is surrounded on its inner and outer sides by a housing including a rear shroud 46 and in turn defines a dilution air outlet 34 just upstream of the nozzle 50. A containment ring 70, 80, 90 is disposed in the dilution air path just upstream of the nozzle 34 so as to be cooled by air flowing therein. As a consequence, the containment ring 70, 80, 90 may be located at a radially inward position to minimize its mass and is adequately cooled so as to allow the use of nonexotic materials in fabricating the same.
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Casaregola Louis J.
Sundstrand Corporation
Thorpe Timothy S.
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