IMPROVED BURNERS FOR GAS TURBINE ENGINE Russian patent published in 2012 - IPC F23R3/30 F23D5/06 F23D14/24 

FIELD: engines and pumps.

SUBSTANCE: burner for gas turbine engine includes centrifugal atomiser to provide swirled mixture of air and fuel, and combustion chamber for combustion of swirled mixture of fuel and fuel. Besides, centrifugal atomiser includes several blades located in circumferential direction; several flow slots provided between the above adjacent blades; at that, each slot has inlet end and outlet end. When using centrifugal atomiser, the air passes along each flow slot from its inlet end to its outlet end, and fuel is supplied to flow slots, due to which there created near outlet ends of flow slots is the above swirled mixture of fuel and air, which has round shape and is spread from centrifugal atomiser in combustion chamber direction; and device for creation of preliminary film, which has the possibility of arranging the fuel in zone of large shift between adjacent flows in the burners; at that, the above zone of large shift is determined by creation of low pressure zone by means of centrifugal atomiser, and the above adjacent flows are the above circular swirled mixture of fuel and air, which is located in radial direction near the above low pressure zone, and counterflow inside flow (a), which is created with the above low pressure zone; at that, the above counterflow is mainly directed to centrifugal atomiser from combustion chamber, due to which liquid fuel from preliminary film creation device is subject to spraying due to large shift.

EFFECT: invention allows improving fuel spraying quality.

23 cl, 21 dwg