Supercharger
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United States of America Patent
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Sep 2, 2014
Issued Date -
N/A
app pub date -
Oct 21, 2010
filing date -
Oct 22, 2009
priority date (Note) -
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Abstract
A supercharger includes a centrifugal compressor having an impeller, a rotational shaft coupled to the impeller, a motor having a stator and a rotor housed in a casing, and a journal air bearing supporting the rotational shaft. The journal air bearing includes a hollow cylindrical member having an inner space therein and a heat transfer member fitted in the inner space. The heat transfer member is made of a material which is less rigid and has a greater coefficient of thermal conductivity than the hollow cylindrical member. The impeller radiates heat transferred through the heat transfer member into ambient air.
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