Patent ID: 8376691

Claim:
A turbo engine, especially a gas turbine, comprising a stator and a rotor, the rotor having rotor blades and the stator having a housing and guide vanes, the rotor blades at a rotor side forming a blade ring which adjoins on a radially outer end thereof a radially inner housing wall of the housing, the housing wall being configured as an outer ring, the blade ring being surrounded by the housing wall and delimiting therewith a gap, the gap between the outer ring of the housing and the radially outer end of the blade ring being adjustable by a deformation of the outer ring, wherein: the outer ring is concentrically surrounded by an adjusting element that is configured as a union ring, wherein opposite faces of the outer ring and the adjusting element having a contour of a truncated cone, wherein cylindrical rolling bodies are positioned between the outer ring and the adjusting element at an oblique angle in relation to an axial direction in a radial direction and in a peripheral direction, and wherein when the adjusting element is rotated in relation to the outer ring the gap is simultaneously adjusted.