EXHAUST GAS TURBOCHARGER WITH PLAIN BEARING FOR REDUCING FLUID TURBULENCE
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
May 25, 2011
filing date -
Jun 2, 2010
priority date (Note) -
Abandoned
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Abstract
An exhaust-gas turbocharger may include a rotor shaft arranged with at least one bearing-shaft portion in a radial bearing. The radial bearing may be a plain bearing configured to slide on a fluid film. The at least one bearing-shaft portion may be subdivided into two outer segments by an inner segment. The two outer segments may be arranged on the respective axial end region of the radial bearing and the inner segment may be positioned between the outer segments. The inner segment may be arranged in the area of an opening of a fluid channel. The turbocharger may include at least one transverse groove running inclined relative to the circumferential direction of the rotor shaft arranged in at least in one of the outer segments. The at least one transverse groove may include a groove depth having a continuously decreasing development in a fluid flow direction.
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