FUEL NOZZLE ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To increase an operating life when a tangential inlet fuel nozzle is used for a gas turbine engine. SOLUTION: A tangential inlet fuel nozzle 10 has a combustor inlet port 20 for allowing discharge of the air and fuel into a combustor. This port 20 has a convergent surface 116, a combustor surface 122 and a cylindrical surface 118 extended between these surfaces. The surface 116 is extended at a first distance 126 along a longitudinal axis 26 of the nozzle 10. The surface 118 is extended at a second distance 128 along the axis 26, and the distance 128 is at least 30% of the first distance 126.