TWO-LOOP MODULE INJECTION TUBE Russian patent published in 2017 - IPC F02C7/22 

FIELD: power industry.

SUBSTANCE: turbomachine injection piping assembly comprising the first set of transfer pipes connected to form a main circuit for supplying fuel to the first and second sets of injectors, and the second set of transfer pipes connected in parallel to the first set so as to form an auxiliary circuit for supplying fuel to the noted first set of injectors. The piping assembly also includes one double connection including one first end receiving one end of the main loop transfer pipe, the second end receiving one end of the auxiliary circuit transfer pipe and the installation surface with the first opening in fluid communication with the first end, and the second opening in fluid communication with the second end. The noted surface of the double compound plant is suitable for connecting a double compound to the injector of the noted first set of injectors. The combustion chamber and turbomachine is also presented.

EFFECT: invention makes it possible to create an injection piping assembly for a turbomachine that is simple to assemble and at the same time provides fuel supply selectively to some injectors by means of an auxiliary circuit in parallel with the main circuit.

9 cl, 21 dwg