FIELD: engine building.
SUBSTANCE: this invention generally relates to gas turbine engines and to fuel injector with gas distribution circuit through multiple tubes. Disclosed is fuel injector (600) for gas turbine engine. Fuel injector (600) comprises flange assembly (610) with distributing unit (612), three main gas tubes and sprayer (630). Distributing unit (612) distributes the main gaseous fuel evenly on three main gas tubes. Sprayer (630) comprises injector body (640) with gas primary passage having annular shape. Three tubes for main gas are connected in parallel between distributing unit (612) and primary passage for gas. Three tubes for gas are in fluid communication with the primary passage for gas and provide the main gaseous fuel from the same source of the main gaseous fuel.
EFFECT: alignment of thermal expansion in each main gas tube can prevent deformation of the main gas tube and can prevent deviation of the sprayer.
10 cl, 13 dwg
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