FIELD: engines and pumps.
SUBSTANCE: gas engine turbine assembly incorporates a high-pressure turbine coupled, via a high-pressure shaft, with a high-pressure compressor, a low-pressure turbine comprising contra-rotating low-pressure inner-and-outer-shaft turbines. The low-pressure turbine includes the low-pressure inner and outer shafts. The low-pressure inner shaft turbine incorporates the first low-pressure turbine blade rims coupled, via the low-pressure inner shaft, with the front fan blade rim to transmit a driving force. The low-pressure outer shaft turbine incorporates the second low-pressure turbine blade rims coupled, via the low-pressure outer shaft, with the rear fan blade rim to transmit a driving force. The turbine assembly contains also a unit-directional rotation blower also transmitting a driving force. The said blower is coupled with the low-pressure outer shaft and arranged axially upstream and downstream relative to the rear fan blade rim.
EFFECT: high-efficiency fan and higher efficiency of the gas turbine engine.
11 cl, 5 dwg
