Gas turbine, has guide vane grid rotatably supported around rotational axis of gas turbine, and brake provided for reducing number of revolutions of guide vane grid lesser than ten revolution per minute and engaging at grid

摘要

The turbine has a guide vane grid (1) arranged between a combustion chamber and a moving blade grid, and equipped with guide vanes. The grid (1) is rotatably supported around a rotational axis of a gas turbine. A brake is provided for reducing the number of revolutions of the grid (1) lesser than 10 revolution per minute and engaged at the grid (1). The grid (1) is rotated by using hotgas flow, from the chamber, impinging on the vanes.