Dual seal arrangement for superchargers
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United States of America Patent
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Sep 29, 2020
Grant Date -
Aug 17, 2017
app pub date -
Dec 5, 2016
filing date -
Dec 15, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is an embodiment of a dual seal arrangement for the high-speed shaft of a supercharger with a centrifugal compressor and a mechanical speed step-down transmission to the shaft. A ring located about the shaft splits the rotational speed of the shaft between two seals, so that each seal spins at a speed of roughly half the speed of the shaft. The arrangement can also be used to split the shaft speed between two bearings in the same manner. The high-speed shaft may also have a turbine attached, to form a driven turbocharger.
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