Patent ID: 6413044
Filing Date: 2002-07-02
Classification: F01D,F05D

Abstract:
A gas turbine having a rotor and a housing, and guide blades attached to the turbine housing, and rotating turbine blades attached to the rotor, and having a device for the removal of dirt particles from the blades, comprising:a first chamber and a second chamber, a supply line for supplying cooling air to the first chamber, a conduit extending from the first chamber to the second chamber, whereby the direction of this conduit is oriented at an angle to the axis of the rotor, said angle being between 0Â° and 90Â°, and between the first chamber and the second chamber a drop in pressure exists, so that the cooling air is accelerated from the first chamber to the second chamber and is deflected in relation to the rotor in the tangential direction, and said cooling air flows in the second chamber with a speed component in circumferential direction of the rotor, the second chamber being provided with outlet openings for cooling air containing dirt particles and being provided with outlet openings for clean cooling air, whereby in comparison with the radial position of the conduit between the two chambers, the outlet openings for the cooling air with dirt particles are arranged further radially outward, and the outlet openings for clean cooling air are arranged further radially inward relative to the axis of the rotor, and lead to the inlets to the cooling channels of the guide or rotating blades.