Fuel injection system for annular combustion chamber of turboshaft engine e.g. turbojet engine, of helicopter, has support units whose openings with single annular row pass air to mix with fuel brought by head

摘要

The system (32) has support and centering units (34) supporting and centering a fuel injector head (30), where the system is not provided with a gimlet and a venturi. A bowl (36) is arranged in downstream of the support units. The support units comprise a single annular row of openings (38) for passage of air partly intended to mix with fuel brought by the head. The support units comprise a truncated wall (42) converging toward the downstream. The wall is connected at the wall's downstream end with the upstream end of the bowl.