Cooling device for electrical power units of electrically operated vehicles
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United States of America Patent
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Nov 10, 2009
Grant Date -
Mar 8, 2007
app pub date -
Dec 5, 2003
filing date -
Dec 5, 2003
priority date (Note) -
Expired
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Abstract
A cooling device for an electrical power unit of electrically operated vehicles, comprising at least one power section and at least one control section. A first cooling circuit containing a heat exchanger with a low coolant temperature is provided mainly for cooling elements of the control sections, and a further cooling circuit with a higher coolant temperature is provided mainly for cooling elements of the power sections.
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