Compressor

Abstract

An axial compressor is provided. The compressor has an annular flow channel, in which adjustable blades of a blade ring that extend through the flow channel are rotatably mounted. Each blade has a lug on the rotor-side of the vane for mounting an inner ring. In order to provide a wear-free, self-centering inner ring, the ring is designed as a split ring with two opposing ends and a spring element for spreading the split ring.

1 .- 9 . (canceled) 
     
     
         10 . A compressor, comprising:
 a housing that defines a radially outer limit of an annular flow duct; and   a vane ring comprising a plurality of guide vanes that extend radially through the annular flow duct and are pivotally mounted on the annular flow duct,   wherein each of the guide vanes comprises a first pivot extending through the housing on the housing side and a second pivot extending into an inner ring on a rotor side of the compressor, and   wherein the inner ring is a split ring having two opposing ends and is provided with a spring element for spreading the split ring.   
     
     
         11 . The compressor as claimed in  claim 10 , wherein the two opposing ends of the split ring comprise opposing first sockets in which the spring element is seated. 
     
     
         12 . The compressor as claimed in  claim 10 , wherein the spring element is encapsulated. 
     
     
         13 . The compressor as claimed in  claim 10 , wherein the opposing ends are axially locked. 
     
     
         14 . The compressor as claimed in  claim 10 , wherein the inner ring comprises at least two segments. 
     
     
         15 . The compressor as claimed in  claim 14 , wherein the inner ring or the segments are axially dividable. 
     
     
         16 . The compressor as claimed in  claim 10 , wherein a collared bushing is arranged on the second pivot. 
     
     
         17 . The compressor as claimed in  claim 10 , wherein the second pivot comprises a continuous circumferential groove in which a sealing ring is seated. 
     
     
         18 . A gas turbine, comprising:
 a compressor as claimed in  claim 10 .