Rotor blade jacket for axial gas turbines
AssigneeMTU Motoren- und Turbinen-Union Muenchen GmbH
InventorHagen Hanser
Life of this patent
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Abstract
A rotor blade jacket for an axial gas turbine has a closed ceramic ring surrounding the blade tips of the turbine rotor and surrounded by a protective metal ring holding heat expansion compensating bristles which are secured at their radially outer ends to the protective metal ring and at their radially inner ends to the ceramic ring, whereby the ceramic ring is supported and centered in the turbine housing.
Claims5
A rotor blade jacket for an axial gas turbine having a rotor with rotor blades exending in a radial direction, comprising a closed ceramic ring surrounding said rotor blades, metal housing ring means surrounding said closed ceramic ring, brush ring means comprising bristles all of said bristles extending at the same slant relative to said radial direction between said housing metal ring means and said closed ceramic ring for centering said closed ceramic ring in a heat expansion compensating manner, first means for operatively securing radially outer ends of said bristles to said metal housing ring means, and second means for operatively securing radially inner ends of said bristles to an outer circumference of said closed ceramic ring, whereby said closed ceramic ring is positively positioned, held, and centered around said rotor blades by said brush ring means.
Dependencies are inferred from the claim text.