Patent ID: 8353150

Claim:
A nozzle to avoid excess damage resulting from a flameholding incident occurring when a flame is formed and persists excessively close to nozzle hardware, comprising: an outer annulus defined by an exterior wall and an interior wall, the outer annulus including air inlets through which air flows to a fuel mixing zone within the outer annulus and a combustion zone; an inner annulus disposed within the interior wall of the outer annulus and including: a fuel volume into which fuel is fed to a distal end thereof, which is adjacent to and isolated from the combustion zone, and an airflow line, disposed between the fuel volume and the interior wall, through which the air flows to the combustion zone; a bulkhead including first passages through which air is provided from the airflow line to the combustion zone and second passages, the bulkhead being configured to isolate the airflow line and the combustion zone from the fuel volume; and a fuse disposed on the interior wall of the outer annulus and configured to melt during the flameholding incident and to thereby form a breach through which fuel flows via the second passages of the bulkhead from the distal end of the fuel volume to a fuel burning zone within the outer annulus and downstream from the fuel mixing zone.