Patent ID: 6374615
Filing Date: 2002-04-23
Classification: F23R

Abstract:
A combustor comprising:an annular, axially extending casing circumscribing an annular, axially extending liner to define a flow passageway therebetween, said casing having at least one aperture in fluid communication with said flow passageway to receive a flow of air, and said liner defining a combustion chamber therewithin; a dome comprising; an outer, axially extending wall attached at one end to said casing; a radially extending wall extending inward from said outer wall; an inner, axially extending wall extending from said radially facing wall to said combustion chamber, said inner wall defining a bore in which is mounted an igniter; an igniter ring circumscribing said inner wall and spaced therefrom to define a first passageway therebetween, said igniter ring and said inner wall defining at least one aperture placing said first passageway in fluid communication with said combustion chamber at a generally coplanar location; a second wall circumscribing said igniter ring and spaced therefrom to define a second passageway therebetween, said second passageway in fluid communication with said flow passageway, the exit of said second passageway in fluid communication with said combustion chamber at said generally coplanar location; a third wall circumscribing said second wall and spaced therefrom to define a third passageway therebetween, said third wall and said outer wall defining therebetween a plenum in fluid communication with said flow passageway; and a first fuel inlet to said dome for delivering fuel to said first passageway.