CHARGING DEVICE FOR A COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Jul 22, 2010
app pub date -
Jan 20, 2010
filing date -
Jan 21, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a charging device (1) for a combustion engine, more preferably exhaust gas turbocharger, preferentially in a motor vehicle, comprising a rotor having a compressor wheel (4) and a shaft (5), a stator (3) having a bearing housing (6) in which the shaft (5) is rotatably mounted about an axis of rotation (7) and a compressor-sided sealing zone (8), in which a rotor-sided sealing surface (9) and a stator-sided sealing surface (10) are located axially opposite each other. An improved sealing effect can be achieved if at least one of the sealing surfaces (9, 10) has a plurality of depressions (15) arranged distributed in circumferential direction.
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