Internal fuel manifold having temperature reduction feature

摘要

A fuel manifold assembly for a gas turbine engine comprises an annular fuel manifold (21) and a plurality of fuel nozzles (30) circumferentially distributed about the fuel manifold. The fuel manifold (21) has at least one fuel conveying passage (32, 34) in fluid flow communication with the plurality of fuel nozzles (30) and defines at least one location susceptible to overheating between two (30a, 30b) of the plurality of fuel nozzles. A slot (50a, 50b, 50c) extends through the fuel manifold (21) in the susceptible location to reduce heat transfer in the fuel manifold while maintaining the fuel manifold assembly dynamically balanced.