| 摘要 |
<p>The invention relates to the power industry, namely to conversion of the heat energy into mechanical energy in a gas-turbine engine and may be used in gas-turbine engines. The invention allows to increase the efficiency of the engine by decreasing the loss on mixing the heated working medium with the cooling agent. The thermodynamic state of the working medium introduced at least into the first turbine stage (8) is changed by expanding and spinning it, before the introduction, in relation to the longitudinal axis of the gas-turbine engine, with subsequent cooling of the working medium and changing its thermodynamic state. The cooling of the working medium with its changed thermodynamic state is affected by the air compressed up to a pressure at least equal to that of the working medium in the changed thermodynamic state. The gas-turbine engine has at least two turbine stages (8, 9) mounted in the through part, at least a double-stage compressor (3) and a heated working medium source (1) having a zone (H) of expansion and spinning of the heated medium and mounted behind it, a zone (2) for mixing the heated working medium with the cooling agent. The zone (2) for mixing the heated working medium with the cooling agent is connected to the outlet of the stage (5) of the compressor, the pressure after which at least equals the pressure of the working medium in the mixing zone (2).</p> |
