Method of extending the service life of used turbocharger compressor wheels
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United States of America Patent
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Jan 3, 2017
Grant Date -
Oct 17, 2013
app pub date -
Apr 4, 2013
filing date -
Apr 13, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method is provided for extending the service life of a used metallic compressor wheel having a damaged surface. The method generally comprises the steps of inspecting the used compressor wheel for material discontinuities such as fatigue cracks and, if fatigue cracks exceeding a predetermined length are not present, renewing the used compressor wheel such as by peening. The inspection process comprises conducting a non-destructive examination of the used compressor wheel to detect cracks larger than those which would fall generally within the compressive stress zone that is generated by peening.
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