FUEL NOZZLE FOR A GAS TURBINE ENGINE

摘要

13DV-7453 FUEL NOZZLE FOR A GAS TURBINE ENGINE In one form, a fuel nozzle includes a primary flowpath and a secondary flowpath, each of which includes a pair of axially opposing input and output ends disposed along a common central longitudinal axis. The secondary path is circumferentially disposed around the primary path. A nozzle discharge portion is circumferentially disposed around the primary and secondary output ends for receiving interacting output flows from the first and second paths and developing a nozzle output therefrom. The nozzle discharge portion includes a conical portion having an input end of smaller diameter which increases along the longitudinal axis to an output end of relatively larger diameter. In a preferred embodiment, the conical portion defines an included solid angle of 60 degrees with respect to the central longitudinal axis. Other embodiments are disclosed.