Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1990-01-29
1992-04-14
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60 3936, 60760, F02C 732, F02C 305
Patent
active
051036320
ABSTRACT:
Difficulties in accommodating thermal growth in a combustor for providing hot gases of combustor to drive, for example, a turbine wheel (10) are avoided in a combustor construction, including a housing (36) defining a combustion chamber having a relatively narrow inlet (38), an enlarged combustion area (42) and a relatively narrow outlet (40) opposite of the inlet (38). A fuel injector (46) is disposed in the inlet (38) for injecting fuel (50) at least into the combustion area (42) and a plenum case (56) surrounds the housing (36) in generally spaced relation. The plenum case (56) is adapted to be connected to a source (62) of oxidant under pressure and is in fluid communication with the inlet (38) to provide oxidant thereto to support combustion of fuel in the combustion area (42). A conduit (44) extends from the outlet (40) to be connected to a turbine nozzle (16) and a diaphragm (122) is interposed and sealingly engages both the housing (36) and the plenum case (56) near the outlet (40). A first labyrinth seal (116) is located on one side of the diaphragm (122) and between the housing (36) and the plenum case (56) while a second labyrinth seal (104) is located on the other side of the diaphragm (122) and is disposed between the plenum case (56) and the conduit (44).
REFERENCES:
patent: 2709338 (1955-05-01), Morley et al.
patent: 3670497 (1972-06-01), Sheldon
patent: 3826084 (1974-07-01), Branstrom et al.
patent: 4016718 (1977-04-01), Lauck
patent: 4640092 (1987-02-01), Coburn et al.
patent: 4688378 (1987-08-01), Harris
Heitz Steve
Shekleton Jack R.
Smith Robert W.
Bertsch Richard A.
Sundstrand Corporation
Thorpe Timothy S.
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