초록 ▼

A fuel nozzle of a variety for dispensing an atomized fluid spray into the combustion chamber of a gas turbine engine. The nozzle includes a first fluid conduit extending along a longitudinal central axis from an upstream end to a downstream end portion terminating to define a primary discharge orif

A fuel nozzle of a variety for dispensing an atomized fluid spray into the combustion chamber of a gas turbine engine. The nozzle includes a first fluid conduit extending along a longitudinal central axis from an upstream end to a downstream end portion terminating to define a primary discharge orifice, a second fluid conduit which is received coaxially over the first fluid conduit as extending along the central axis from an upstream end to a downstream end portion terminating to define a secondary discharge orifice disposed generally concentrically with said primary discharge orifice, and a third fluid conduit which is received coaxially over the second fluid conduit as extending along the central axis from an upstream first end to a downstream second end. The outer surface of the downstream end portion of the first fluid conduit and the inner surface of the downstream end portion of the third fluid conduit define therebetween a generally annular, internal mixing chamber. First and second fluid inlet ports are provided as extending along longitudinal first and second port axes in fluid communication with, respectively, the second and third fluid conduits and the mixing chamber. The second inlet port is disposed angularly to the first inlet port such that the second port axis intersects the first port axis within the mixing chamber to define an impingement locus for the admixing of a first fluid from the second fluid conduit and a second fluid from the third fluid conduit.

대표청구항 ▼

[ What is claimed:] [1.] A method of dispensing fluid components into a combustion chamber of a gas turbine engine of a variety having a fuel nozzle for delivering an atomized fluid spray to said chamber, said method comprising the steps of:(a) providing said nozzle as comprising:an outer fluid pass

[ What is claimed:] [1.] A method of dispensing fluid components into a combustion chamber of a gas turbine engine of a variety having a fuel nozzle for delivering an atomized fluid spray to said chamber, said method comprising the steps of:(a) providing said nozzle as comprising:an outer fluid passageway extending along a longitudinal central axis from an upstream first end to a downstream second end;an inner fluid passageway disposed coaxially with said outer fluid passageway as extending along said central axis from an upstream end to a downstream end portion terminating at a first discharge orifice, said downstream end portion defining an internal mixing chamber disposed intermediate the upstream end and the discharge orifice of said inner fluid passageway;a central fluid passageway disposed coaxially with said inner fluid passageway as extending along said central axis from an upstream end to a downstream end portion defining a second discharge orifice generally concentric with said first discharge orifice,at least one first inlet port extending along a longitudinal first port axis in fluid communication with said inner fluid passageway and said mixing chamber; andat least one second inlet port extending along a longitudinal second port axis in fluid communication with said outer fluid passageway and said mixing chamber, said second inlet port being disposed angularly to said first inlet port such that said second port axis intersects said first port axis within said mixing chamber defining an internal impingement locus,(b) conveying a distillate fuel first fluid component through said inner fluid passageway;(c) conveying an aqueous second fluid component through said outer fluid passageway;(d) conveying a distillate fuel third fluid component through said central fluid passageway;(e) injecting said first fluid component into said mixing chamber through said first inlet port;(f) injecting said second fluid component into said mixing chamber through said second fluid port to impinge upon said first fluid component within said impingement locus forming an admixture of said first and second fluid components;(g) dispensing said admixture from said discharge orifice into said combustion chamber as an outer conical spray; and(h) dispensing said third fluid component from said second discharge orifice into said combustion chamber as a central spray disposed within said outer conical spray.