FUEL NOZZLE WITH FLUID LOCK AND PURGE APPARATUS

摘要

A fuel nozzle apparatus has a centerline axis (26), and includes: a main fuel injector (24) including an enclosed interior volume in fluid communication with a plurality of fuel ports (58) configured to discharge fuel therefrom; a main fuel conduit (22) disposed upstream of the main fuel injector (24) and configured to supply liquid fuel to the interior volume; and a fluid lock (82) disposed between the main fuel conduit (22) and the main fuel injector (24), the fluid lock (82) including a plurality of parallel capillary channels (88).