Patent ID: 9080772
Filing Date: 2015-07-14
Classification: F23C,F23D,F23N,F23R

Abstract:
1. An ignition system, comprising: a housing defining an interior and an exhaust outlet, wherein the housing is configured and adapted to be mounted to a combustor to issue flame from the exhaust outlet into the combustor for ignition and flame stabilization within the combustor; a fuel injector mounted to the housing with an outlet of the fuel injector directed to issue a spray of fuel into the interior of the housing; an igniter mounted to the housing with an ignition point of the igniter proximate the outlet of the fuel injector for ignition within the interior of the housing; an inner wall mounted in the interior of the housing and defining a longitudinal axis, wherein the inner wall is spaced apart inward from the housing to define an air plenum between the inner wall and the housing and to define a combustion chamber within the inner wall; first and second air swirlers axially spaced apart along the longitudinal axis, the first air swirler being proximate a first end of the inner wall, the second air swirler being proximate a second end of the inner wall, wherein both the first and second air swirlers are configured to impart swirl onto a flow of air entering the combustion chamber; and an exhaust tube coupled to the second air swirler such that the second air swirler is disposed axially along the longitudinal axis between the first air swirler and the exhaust tube and such that the exhaust tube conveys combustion products to the exhaust outlet.