Patent ID: 9534499
Date: 2017-01-03
CPC Classifications: F01D,F02C,F04D,F05D,Y10T

Claim:
1. A method for extending the service life of a used metallic compressor wheel having a hub rotatable about an axis and blades radiating outward from the hub and affixed to the hub along blade roots, the hub having a curved front face to which the blades are attached, the curved front face curving axially in a first direction, and a curved back face positioned opposite the front face and curving axially in a second direction opposite the first direction, the method comprising the steps of: inspecting the used compressor wheel for material discontinuities; and if a material discontinuity exceeding a predetermined length is detected, discarding the used compressor wheel; but if such a material discontinuity is not detected, renewing at least one of the blade roots and curved back face by peening.