CHARGING DEVICE, MORE PREFERABLY EXHAUST GAS TURBOCHARGER FOR A MOTOR VEHICLE
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United States of America Patent
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N/A
Issued Date -
Feb 10, 2011
app pub date -
Jul 30, 2010
filing date -
Jul 31, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a charging device, such as an exhaust gas turbocharger for a motor vehicle, with a shaft carrying a compressor wheel, with a fixing device for fixing the compressor wheel on the shaft, with at least one component fixed on the shaft together with the compressor wheel by the fixing device. It can be achieved that heat expansion of the compressor wheel through the expansion coefficient (.alpha..sub.3) of at least one component can be at least partially offset. Because of this it is possible to increase the initial clamping force with which the components are positioned or clamped on the shaft without the permissible surface pressure for the clamp components being exceeded.
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