FIELD: engines and pumps.
SUBSTANCE: two-shaft gas-turbine engine includes a stator ring of a high-pressure turbine, and external wall of a transient duct between high and low pressure stages, the first control cavity of the stator ring and second cavity for distribution of air intended for blowing of the transient duct external wall. Two cavities are connected to each other by means of a hole controlled with an installed valve to provide an opening process when pressure in the first cavity is higher than pressure in the second cavity, and a closing process when pressure in the first cavity is lower than pressure in the second cavity.
EFFECT: invention allows using an air flow for blowing of a transient duct wall, which is intended to control a turbine ring without negative influence on such control.
11 cl, 7 dwg
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