GAS TURBINE ENGINE TURBINE Russian patent published in 2013 - IPC F01D11/24 F02C7/12 

FIELD: engines and pumps.

SUBSTANCE: turbine of a gas turbine engine comprises outer, inner and intermediate bodies, a stage with a nozzle block and an impeller with a circular insert above the impeller, a system of turbine cooling, including bodies. A facility of radial gap regulation includes circular inserts, outer, inner and intermediate bodies. The intermediate body is made of conical shape with a radial flange. The circular insert above the impeller is fixed on intermediate and inner bodies. The turbine cooling system comprises a flow controller, the main pipeline connected via the main flow rate controller with the upper cavity of the nozzle block, the inner pipeline connected with a swirling device, a front deflector with holes and holes in a disc. The system of body cooling also comprises a flow rate controller, a header and holes in an outer body.

EFFECT: efficient regulation of radial gaps in a turbine at all modes.

3 cl, 7 dwg