Patent Number: 6,254,349

Title: Device and method for detachably connecting an impeller to a pinion shaft in a high speed fluid compressor

Abstract: A compressor rotor assembly including an impeller including an impeller stem, the stem including a first coupling end having a first face and at least one arcuate coupling tab along the first face; the impeller stem further comprising a bore that extends inwardly from the first face, the bore having an interior wall that is tapered. The rotor assembly further comprising a pinion shaft having a second coupling end with a second face and at least one arcuate coupling slot along the second face; and a hub extending outwardly from the second face, the hub including a tapered outer wall; the first and second coupling means and the hub and bore are adapted to be mated when the impeller and pinion shaft are assembled to prevent relative displacement of the stem and shaft.

Inventors: Haugen; Ronald L. (Mayfield, KY), Klope; R. Kevin (West Paducah, KY), Pierce; James R. (Mayfield, KY)

Assignee: Ingersoll-Rand Company

International Classification: F16D 1/092 (20060101); F16D 1/091 (20060101); F16D 1/06 (20060101); F04D 29/26 (20060101); F04D 029/34 ()

Expiration Date: 07/03/2018