The application discloses a multi-stage center grading wide-range stable
combustion chamber head, and relates to the technical field of
combustion chambers. The multi-stage center grading wide-range stable
combustion chamber head comprises a head outer ring shell, a second main combustion stage
assembly, a first main combustion stage
assembly and a plurality of xth main combustion stage assemblies. The second main combustion stage
assembly comprises a second
fuel supply cavity and second swirl vanes, and the second swirl vanes are provided with second
fuel injection holes which are communicated with the second
fuel supply cavity. The first main combustion stage assembly comprises a first
fuel supply ring cavity and first swirl vanes, and the first swirl vanes are provided with first
fuel injection holes which are communicated with the first fuel supply ring cavity. Each main combustion stage assembly comprises a fuel supply cavity and swirl vanes, and the form is the same as that of the second main combustion stage. The head outer ring shell is arranged for installation, positioning and forming a flow channel. The xth main combustion stage assembly, the second main combustion stage assembly and the first main combustion stage assembly are arranged, and the straight-flow air is changed into swirl flow by the swirl vanes. The fuel is injected out from the first
fuel injection holes and the second fuel injection holes after entering the head outer ring shell from the outside.