Compressor impeller
AssigneeMTU Motoren-und Turbinen-Union Munchen GmbH
InventorsWolfgang Krueger, Hans-Juergen Schmuhl
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Abstract
A compressor impeller has a ring-shaped shroud band which is mounted at blade tips, each blade tip being enclosed in an identical radially slidable manner by a guide block, and the guide blocks being fastened to the shroud band. As a result, a narrow sealing gap and thus lower aerodynamic losses can be implemented than in conventional compressors, and the different centrifugally and thermally induced expansions of the blade and of the shroud band can be compensated.
Claims14
A compressor impeller having a plurality of compressor blades distributed over a circumference thereof, wherein a ring-shaped shroud band is mounted at blade tips of the compressor blades, and each blade tip is enclosed by a guide block slidable onto an associated blade tip in a radial direction, the guide blocks being fastened to an interior side of the shroud band, wherein at least one of the blade tips is widened to form a guide surface for interacting with an associated guide block.
Dependencies are inferred from the claim text.