Gas Turbine Fuel System for High Altitude Starting and Operation

摘要

A fuel system for a gas turbine engine comprises a set of starting fuel injectors that operate in a fuel pressurised atomisation mode to atomise fuel that flows therethrough during an ignition and a post-ignition phase and a set of main fuel injectors that operate in an air blast mode to atomise fuel that flows therethrough during the post-ignition phase and a high altitude ready to load phase and an air assist mode to control the pattern of fuel atomisation during a loaded phase.