FIELD: turbines.
SUBSTANCE: cooled from inside structural element for gas turbine is equipped with at least one cooling channel. On the inner surface of the cooling channel there are spinning elements in the form of propagating across the main flow of cooling agent of the turbulators. Between the turbulators there are pins with different height. Pins' height is smaller than that of cooling ribs. In the main direction of coolant flow the pins located in-series have different heights.
EFFECT: invention is aimed at reducing pressure loss in cooling channel.
5 cl, 4 dwg
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