Patent ID: 7686575

Claim:
A gas turbine flow path component mounting apparatus comprising: an outer in a casing of the gas turbine; and an inner ring for mounting gas turbine flow path components, the inner ring being mounted within the outer ring on four radially slidable mounts between the two rings that maintain the inner and outer rings in coaxial relationship, but allows them to thermally expand at different rates; wherein the inner ring comprises first and second halves, the outer ring comprises first and second halves, and the radially slidable mounts are positioned 90 degrees apart on the inner and outer rings, a first and second of the of the radially slidable mounts comprising respective first and second keys that are bolted into respective first and second joints between the first and second halves of the inner ring, the first and second keys received in respective first and second slots in respective first and second joints between the first and second halves of the outer ring, each slot being formed as an enclosed chamber except for an open radially inner end thereof that receives the respective key and allows only radial motion of the key.