Power plants – Combustion products used as motive fluid – With variable oxidizer control
Patent
1979-06-20
1981-09-15
Garrett, Robert E.
Power plants
Combustion products used as motive fluid
With variable oxidizer control
60746, 60759, 60760, F23R 306, F23R 326, F23R 336, F23R 354
Patent
active
042889804
ABSTRACT:
A counter flow combustor has a generally elongated hollow cylindrical outer casing or shell with a closure means at the upper end defining a head space and a generally elongated smaller hollow annular inner casing or combustion wall mounted therein in spaced relation to the outer casing to form an annular head space extension between the side walls of the outer casing and the inner casing which is continuous with the head space. The inner casing or combustion wall defines a primary combustion zone, and a secondary combustion zone in communication at one end with the primary combustion zone and at the end remote therefrom with the discharge outlet for delivering combustion gases from the combustor. An inlet assembly is mounted in said head space for mixing fuel and air and for delivering the same in proper ratio for combustion in said primary combustion zone and secondary combustion zone. An annular air inlet passage is formed in the combustor at the end remote from the inlet assembly and a plurality of cooling tubes mounted on the inside wall of the inner casing or combustion wall communicates at one end with the air inlet passage and at the end remote therefrom with the head space and inlet assembly so as to utilize almost all of the entering air first for cooling the wall of the inner casing or combustion wall and then to pass the same to the inlet assembly for mixture with the fuel to be burned in the primary combustion zone, such air flow passing in counter flow relation to the combustion gases passing through the primary combustion zone and secondary combustion zone and being discharged through the discharge outlet for the combustor.
REFERENCES:
patent: 2446059 (1948-07-01), Peterson
patent: 2716330 (1955-08-01), Way
patent: 2795372 (1957-06-01), Szyolowski
patent: 3016703 (1962-01-01), Lorett
patent: 3236279 (1966-02-01), Beyer
patent: 3280555 (1966-10-01), Charpentier
patent: 3777983 (1973-12-01), Hibbins
Bobis Daniel H.
Brown Boveri Turbomachinery, Inc.
Garrett Robert E.
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