초록 ▼

A dual fuel injection system for a low Nox combustor in which separate gaseous and liquid fuel manifolds are integrally joined to form manifold assemblies. Each manifold assembly extends circumferentially around the inlet of an annular fuel and air mixing passage. The gaseous fuel manifolds have a n

A dual fuel injection system for a low Nox combustor in which separate gaseous and liquid fuel manifolds are integrally joined to form manifold assemblies. Each manifold assembly extends circumferentially around the inlet of an annular fuel and air mixing passage. The gaseous fuel manifolds have a number of gas discharge ports spaced around their circumferences. The liquid fuel manifolds have a number of fuel nozzles spaced around their circumferences. The gaseous fuel discharge ports and liquid fuel nozzles are oriented so as to inject fuel into the annular passages in a manner that will facilitate mixing of the fuel and air. Separate gaseous and liquid fuel supply tubes are connected to each manifold.

대표청구항 ▼

[ What is claimed is:] [5.] A combustor for producing a hot gas by burning a fuel in air, said combustor having:a) a combustion zone;b) a first annular passage for mixing fuel and air, said first annular passage in flow communication with said combustion zone;c) a first manifold for introducing a li

[ What is claimed is:] [5.] A combustor for producing a hot gas by burning a fuel in air, said combustor having:a) a combustion zone;b) a first annular passage for mixing fuel and air, said first annular passage in flow communication with said combustion zone;c) a first manifold for introducing a liquid fuel into said first annular passage so as to circumferentially distribute said liquid fuel around said first annular passage; and(d) a second manifold for introducing a gaseous fuel into said first annular passage so as to circumferentially distribute said gaseous fuel around said first annular passage, said first and second manifolds joined together to form an integral manifold assembly, wherein said second manifold has a circumferentially extending row of gaseous fuel discharge ports formed therein, and wherein said first manifold is joined to said second manifold at a location radially inward from said row of gaseous fuel discharge ports.