Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1980-07-16
1982-08-03
Garrett, Robert E.
Power plants
Combustion products used as motive fluid
Combustion products generator
60742, 60748, 239400, 239406, F23R 336, F23R 338
Patent
active
043421989
ABSTRACT:
A gas turbine engine fuel injector has distinct and separate flow paths for liquid and gaseous fuel which each terminate in outlets of decreasing cross-sectional area in order to prevent combustion products from the flame tube or tubes of the engine from flowing back into the injector, the separate fuel flow paths preventing fuel from migrating from one path to the other. Compressor delivery air is also arranged to flow through the fuel outlets and some mixing of fuel and air takes in the outlets before the fuel enters the flame tube.
The fuel injector is formed in two separate and co-operating parts, a fuel feed arm attached to the engine casing and readily removable through a relatively small access aperture in the casing and a fuel and air inlet means which is attached to the head of the flame tube and defines the fuel and air inlets into the flame tube.
The fuel injector is designed to operate on a wide calorific value range of both liquid and gaseous fuels and water injection means are also incorporated to reduce NO.sub.x emissions.
REFERENCES:
patent: 2044296 (1936-06-01), Hardgrove
patent: 3285007 (1966-11-01), Carlisle et al.
patent: 3684186 (1972-08-01), Helmrich
patent: 3690093 (1972-09-01), Carlisle
patent: 3788067 (1974-01-01), Carlisle et al.
German Publication DE-OS-NO.2910464, Sep. 20, 1979 (copy of corresponding U.S. Ser. No. 12,122, filed Feb. 14, 1979, submitted).
German Publication DE-OS-NO.2060158, Jun. 8, 1972 (copy of British specification No. 1,284,440, Aug. 9, 1972, submitted).
French Publication No. 2323013, Apr. 1, 1977.
Garrett Robert E.
Rolls-Royce Limited
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