FIELD: engines and pumps.
SUBSTANCE: proposed vent device is intended for gas turbine engine elements. Said gas turbine comprises two mechanically independent rotors, each comprising, at least, one wheel disk of high-pressure turbine wheel and disk of low-pressure turbine wheel, as well as low-pressure turbine ventilation first loop. The latter comprises air delivery impeller. The latter is arranged below low-pressure turbine wheel disk to facilitate air circulation in primary loop. Delivery impeller air inlet communicates with high-pressure turbine wheel disk orifice. Delivery impeller is arranged between two disks of high-pressure and low-pressure turbine wheel disks.
EFFECT: higher efficiency of cooling.
12 cl, 5 dwg
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