Patent ID: 6514041
Filing Date: 2003-02-04
Classification: F01D

Abstract:
A thermal turbo machine comprising:a rotor, a stationary housing, rotating vanes attached to the rotor, said rotating vanes having tips, heat shield (a) segments arranged radially opposite from the tips of the rotating vanes, and guide vanes attached by guide vane carriers to the stationary housing, whereby the guide vane carriers each have a guide vane platform; said heat shield segments that at least partly axially adjoin the guide vane on both sides, being part of the guide vane platform; at least two braces extending in part radially outward from the guide vane platform, whereby the braces extend from the guide vane platform in the manner of open scissors towards a band, and radially outer ends of said at least two braces being connected by the band, said band being attached to the housing of the turbo machine; and the guide vane platform and braces including a first material, and the band comprising a second material that is different from the first material, wherein the coefficient of expansion of the first material is greater than the coefficient of expansion of the second material.