COMBUSTION CHAMBER FOR A TURBINE ENGINE WITH HOMOGENEOUS AIR INTAKE THROUGH FUEL INJECTION SYSTEM

摘要

A combustion chamber for a turbine engine, including an annular end wall provided with injection systems each centred on a respective axis and each having an upstream end forming a bushing for receiving a head of a fuel injector, and an annular shroud covering the end wall and including injector ports respectively arranged facing the injection systems, wherein the annular shroud includes air intake ports separate from the injector ports, and the bushing of each injection system crosses the corresponding injector port and includes at its upstream end a collar having a free end remote from the axis of the injection system by a first distance greater than a second distance separating a rim of the injector port from the axis.

主权项

1. An annular combustion chamber for a turbine engine, comprising:
an annular end wall provided with a plurality of injection systems each centred on a respective axis and each having an upstream end forming a bushing for receiving a head of a fuel injector, a downstream end opening into said combustion chamber, and an annular air inlet arranged between said upstream and downstream ends so that the air admitted through said annular air inlet mixes, within the injection system, with the fuel coming from the fuel injector, and an annular shroud covering an upstream side of said end wall and comprising a plurality of injector ports respectively arranged facing said injection systems, said annular shroud and said end wall delimiting together an annular space into which the annular air inlet of each injection system opens, wherein said annular shroud includes a plurality of air intake ports separate from said injector ports, and wherein said bushing of each of said injection systems crosses the corresponding injector port of said annular shroud and comprises, at its upstream end, an annular collar having a free end remote from said axis of the injection system by a first distance greater than or equal to a second distance separating a rim of said corresponding injector port from said axis of the injection system.