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Ball bearing system for internal combustion engine turbochargers

  • US 9,004,774 B1
  • Filed: 04/08/2014
  • Issued: 04/14/2015
  • Est. Priority Date: 04/08/2014
  • Status: Active Grant
First Claim
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1. A ball bearing system for use with high speed engine turbochargers, the ball bearing system being configured to dampen axial and radial thrust loads of a turbocharger and enhance performance and longevity of the turbocharger, the ball bearing system comprising:

  • a bearing carrier comprising an aperture configured to house a shaft comprising a compressor wheel affixed to a first end of the shaft and a turbine wheel affixed to a second end of the shaft, the bearing carrier further being configured to house a plurality of bearings in contact with the shaft to allow a rotation of the shaft;

    an outer housing member operably connected to the shaft and configured to enclose the bearing carrier; and

    a first O-ring and a second O-ring both disposed within grooves around the outer surface area of the bearing carrier, each O-ring also in contact with a corresponding groove in the interior of the outer housing member, wherein the O-rings are configured to dampen the axial and radial loads of the rotating shaft of the turbocharger.

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