Power plants – Combustion products used as motive fluid – With variable oxidizer control
Patent
1994-06-14
1996-01-09
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
With variable oxidizer control
60 3927, 60737, F02C 950
Patent
active
054818664
ABSTRACT:
An annular combustor system is disclosed in use with a radial turbine-type gas turbine engine module, the system having an annular housing defining a single stage combustor, an external fuel/air premixer system having a mixing chamber and a compressed air valve and a fuel valve both under the control of a controller, to provide a preselected lean fuel/air ratio mixture for introduction to the combustion zone of the annular housing. Compressed air conduits are used to channel a portion of the total compressed air flow to the premixer and the remainder to the dilution zone of the combustor, and a fuel conduit is used to deliver all of the fuel to the premixer. Convection cooling of the annular housing is accomplished using compressed air without diluting the fuel air ratio in the combustion zone. The premixer includes a venturi, a fuel nozzle for spraying fuel into the venturi inlet along the venturi axis, and a premixer housing integrating the compressed air valve, the venturi axis being aligned substantially tangentially to the annular housing axis to provide a swirling admission of the premixed fuel/air mixture to the combustion zone.
REFERENCES:
patent: 1705383 (1929-03-01), Weiss
patent: 2108822 (1938-02-01), Lippincott
patent: 2183836 (1939-12-01), Gordon, Jr.
patent: 2268270 (1941-12-01), Traupel
patent: 2469238 (1949-05-01), Newton
patent: 2487514 (1949-11-01), Boestadet et al.
patent: 2488969 (1949-11-01), Dietler
patent: 2489939 (1949-11-01), Traupel
patent: 2513601 (1950-07-01), Traupel
patent: 2608822 (1952-09-01), Pavlecka et al.
patent: 2621475 (1952-12-01), Loy
patent: 2625012 (1953-01-01), Larrecq
patent: 2663141 (1953-12-01), Hage
patent: 2675673 (1954-04-01), Mallinson et al.
patent: 2837894 (1958-06-01), Kind
patent: 2988884 (1961-06-01), Pouit
patent: 2999359 (1961-09-01), Murray
patent: 3091080 (1963-05-01), Crim et al.
patent: 3099134 (1963-07-01), Calder et al.
patent: 3204406 (1965-09-01), Howes et al.
patent: 3315467 (1967-04-01), De Witt
patent: 3626444 (1971-12-01), Caruel et al.
patent: 3765170 (1973-10-01), Nakamura
patent: 3768962 (1973-10-01), Baranowski, Jr.
patent: 3869865 (1975-03-01), Lacroix et al.
patent: 3905192 (1975-09-01), Pierce et al.
patent: 3958413 (1976-05-01), Cornelius et al.
patent: 4012904 (1977-03-01), Nogle
patent: 4030288 (1977-06-01), Davis et al.
patent: 4073137 (1978-02-01), Roberts
patent: 4192139 (1980-03-01), Buchheim
patent: 4215535 (1980-08-01), Lewis
patent: 4255927 (1981-03-01), Johnson et al.
patent: 4260367 (1981-04-01), Markowski et al.
patent: 4286430 (1981-09-01), Smith
patent: 4297842 (1981-11-01), Gerhold et al.
patent: 4301657 (1981-11-01), Penny
patent: 4305255 (1981-12-01), Davies et al.
patent: 4356698 (1982-11-01), Chamberlain
patent: 4389848 (1983-06-01), Markowski et al.
patent: 4412414 (1983-11-01), Novick et al.
patent: 4457704 (1984-07-01), Sommers et al.
patent: 4610135 (1986-09-01), Alexander
patent: 4641495 (1987-02-01), Mowill
patent: 4700542 (1987-10-01), Wang
patent: 4702070 (1987-10-01), Cureton et al.
patent: 4747262 (1988-05-01), Maynard
patent: 4766721 (1988-08-01), Iizuka et al.
patent: 4829764 (1989-05-01), Iizuka et al.
patent: 4838029 (1989-06-01), Gleason et al.
patent: 4845944 (1989-07-01), Rodgers
patent: 4845952 (1989-07-01), Beebe
patent: 4893466 (1990-01-01), Egnell et al.
patent: 4898001 (1990-02-01), Kuroda et al.
patent: 4928481 (1990-05-01), Joshi et al.
patent: 4944149 (1990-07-01), Kuwata
patent: 4966001 (1990-10-01), Beebe
patent: 4974415 (1990-12-01), Shekleton et al.
patent: 5016443 (1991-05-01), Shimizu et al.
patent: 5069029 (1991-12-01), Kuroda et al.
patent: 5070700 (1991-12-01), Mowill
patent: 5081832 (1992-01-01), Mowill
patent: 5156002 (1992-10-01), Mowill
patent: 5214911 (1993-06-01), Shekleton
patent: 5218824 (1993-06-01), Cederwall et al.
patent: 5257499 (1993-11-01), Leonard
Sheperd, D. G. "Principles of Turbomachinery", New York, The Macmillan Co., 1956., pp. 282-289.
Csanady, G. T. "Turbomachines", New York; McGraw-Hill Book Co., 1964, pp. 14-23.
Cox, H. R., "Gas Turbine Princoples and Practice", D. Van Nostrand, pp. 2-26, 2-39.
Treager, E. E., "Aircraft Gas Turbine Technology", 2nd Ed., p. 10.
Fuel injector cuts NOx; Professional Engineering, Sep. 1994.
Development of an Aeroderivative Gas Turbine DLE Combustion System, Diesel & Gas Worldwide, May 1993.
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