Being the combuster which makes the hot gas cause low by

摘要

PROBLEM TO BE SOLVED: To provide a dual-fuel injection device for a low NOx type cumbustor. ;SOLUTION: In the device, gas fuel manifolds and liquid fuel manifolds, which are provided separately, are connected integrally to one another to form manifold assemblies 32, 35. Each of the assemblies 32, 35 extends circumferentially around the inlets of annular passages 23 for mixing fuel and air. The gas fuel manifold has a large number of gas fuel discharge ports arranged on its periphery so as to be spaced apart from each other. The liquid fuel manifold has a large number of liquid fuel nozzles arranged on its periphery so as to be spaced apart from each other. The gas fuel discharge ports and liquid fuel nozzles are oriented to inject fuel into the annular passages in such a manner that the mixing of fuel and air can be accelerated. Gas fuel feed pipes 38 and liquid fuel feed pipes 39, which are separately provided, are connected to the manifolds respectively.;COPYRIGHT: (C)1998,JPO