FUEL INJECTOR OF GAS TURBINE ENGINE WITH REMOVABLE AUXILIARY LIQUID FUEL PIPE Russian patent published in 2012 - IPC F23R3/34 

FIELD: engines and pumps.

SUBSTANCE: fuel injector (30) of gas turbine engine includes housing of injector with longitudinal axis, pre-mixing cylinder, auxiliary cylindrical assembly and auxiliary liquid fuel pipe. In the injector housing there made is one or many channels which are located in circumferential direction around longitudinal axis, and inlet hole for compressed air. Pre-mixing cylinder has near and far ends and is located in circumferential direction around longitudinal axis. Pre-mixing cylinder has hydraulic connection to fuel channels and inlet hole for compressed air at near end and designed for connection to combustion chamber of gas turbine engine at far end. Generally, auxiliary cylindrical assembly is located radially inside pre-mixing cylinder and has the first and the second ends. The second end is connected to the injector housing, and the first end is located near far end of pre-mixing cylinder. Auxiliary liquid fuel pipe has the third end and the fourth end, which are located radially inside auxiliary assembly. The fourth end is attached to the injector housing with possibility of being detached, and the third end is located near the first end of auxiliary assembly.

EFFECT: facilitation of removal and cleaning of liquid fuel lines of fuel injector.

14 cl, 13 dwg