Fuel injectors

Details Fuel injectors Fuel injectors

1979-11-05

1982-05-04

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Using special fuel or oxidizer

60 3955, 60742, F02C 722

Patent

active

043275478

ABSTRACT:
A dual fuel injector for a gas turbine engine having means for water injection to reduce NOx emissions, comprises an outer annular gas fuel duct with a venturi section with air purge holes to prevent liquid fuel entering the gas duct, an inner annular liquid fuel duct having inlets for water and liquid fuel and through which compressor air flows, the inner annular duct terminating in a nozzle, and a central flow passage through which compressor air also flows, terminating in a main diffuser having an inner secondary diffuser. The surfaces of both diffusers are arranged so that their surfaces are washed by the compressor air to reduce or prevent the acretion of carbon to the injector, the diffusers in effect forming a hollow pintle.

REFERENCES:
patent: 3630024 (1971-12-01), Hopkins
patent: 3691765 (1972-09-01), Carlisle
patent: 3693347 (1972-09-01), Kydd
patent: 3763650 (1973-10-01), Hussey et al.
patent: 3777983 (1973-12-01), Hibbins
patent: 3788067 (1974-01-01), Carlisle et al.
patent: 3826080 (1974-07-01), DeCorso et al.
patent: 3866413 (1975-02-01), Sturgess

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