Gaseous fuel injector

Details Gaseous fuel injector Gaseous fuel injector

1990-09-14

1992-09-15

Bertsch, Richard A.

Power plants

Combustion products used as motive fluid

With addition of steam and/or water

60740, F02C 722, F02G 100

Patent

active

051467410

ABSTRACT:
The use of water injection for reduction of NOx emissions in gas turbine engines is well known. Many of the injectors used to supply water to the combustion chamber have used existing dual fuel injectors which are expensive, provide poor mixing, combustion and ineffective water conservation. The present gaseous fuel injector includes a device to cause the swirling of water at an outlet end of the injector, a plurality of tangentially angled passages to cause the swirling of the gaseous fuel and a device for directing a portion of the air into contact with the flow of fuel prior to entering the combustor section. The swirling of the water, gaseous fuel and the air are in the same direction and are all aerodynamically additive resulting in an efficient low cost gaseous fuel injector to reduce NOx emissions.

REFERENCES:
patent: 3570242 (1971-03-01), Leonardi
patent: 4070826 (1978-01-01), Stenger et al.
patent: 4327547 (1982-05-01), Hughes et al.
patent: 4483137 (1984-11-01), Faulkner
patent: 4533314 (1985-08-01), Herberling
patent: 4761948 (1988-08-01), Sood et al.
patent: 4833878 (1989-05-01), Sood et al.

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