Patent ID: 8490402

Claim:
An afterburner chamber for a turbomachine comprising: a burner ring having housed therein an annular fuel strip that is pierced by a first set of orifices and that is mounted inside an annular thermal protection tube; and an ignition spark plug penetrating into the inside of the burner ring, wherein the protection tube includes a second set of orifices for passing air and the burner ring includes a third set of orifices for passing air, wherein the afterburner chamber includes means for ventilating the first set of orifices in the fuel strip that are situated in the immediate vicinity of the spark plug, and wherein the ventilation means comprise the second set of orifices formed in an upstream wall of the protection tube and angled relative to an axis of the turbomachine, and axes of the second set of orifices point towards an axis of the spark plug, the axis of the spark plug being substantially perpendicular to the axis of the turbomachine.