Flame holder devices for combustion chambers of turbojet engine afterburner tubes

Claim 1

Flame holder device for a combustion chamber, in particular for the afterburner tube of a turbojet of the type comprising a flame holder ring of revolution with a constant cross section in the form of a U or a V, the flanks of said ring being joined by means of an arc, the spine of which is oriented toward the upstream of the flow of gas passing through the chamber, a plurality of flame holder arms radiating from one of the flanks of the ring, each arm having a transverse section in the form of a U or a V, the flanks of which are joined together by an arc, the spine of which is oriented upstream, the spine of the arc of each arm being located closer to the downstream or outlet edge of said flank, than to the attachment of said flank to the arc of the ring, characterized in that each arm is secured to the ring by means of a bracket essentially oriented in an axial plane of the tube and welded on one side to a portion of the generatrix of the ring and on the other, to the vicinity of the spine of the arm.