Verfahren und Vorrichtung zur Verminderung der thermischen Spannungen in Turbinen-Triebwerken

摘要

A fuel injection system for use with a gas turbine engine (10) includes a plurality of thermally compatible fuel nozzles (50). Each fuel nozzle includes a delivery system (60) to deliver a fluid supply to the gas turbine engine and a support system (62) for supporting the delivery system. The delivery system is disposed within the support system and is subjected to lower operating temperatures than the support system. The delivery system is fabricated from a material having a coefficient of expansion approximately twice a coefficient of expansion for the material used in fabricating the support system.