FIELD: engines and pumps.
SUBSTANCE: turbine, in particular gas turbine, comprises inner shell designed for installation of at least one stator blade of turbine stage, and outer shell arranged around the inner shell to form an external cooling passage between inner shell and outer shell. Outer cooling passage comprises fluid inlet which is intended for introduction of cooling fluid medium from the turbines external volume to outer cooling passage. Cooling passage has fluid outlet so that cooling fluid is discharged into the internal volume of the turbine. Fluid inlet is located relative to outlet for fluid medium so that fluid medium inside the external cooling passage has flow direction, which has a component which is oriented in opposite direction relative to the main flow direction of turbine working fluid medium. First row of stator blades comprises at least one first stator blade of stator blades and installed in the first part of internal shell. At least one first stator blade comprises channel and is installed on the inner housing so that cooling fluid flows from fluid outlet to the passage.
EFFECT: invention is aimed at improving cooling efficiency and reduced consumption of cooling medium.
11 cl, 3 dwg
