Cooling jacket and deflection unit for cooling jackets
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United States of America Patent
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May 9, 2017
Grant Date -
Mar 20, 2014
app pub date -
Feb 2, 2012
filing date -
May 2, 2011
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Abstract
A cooling jacket (14) for cooling an electric motor, in particular a stator (23), wherein a first spiral line (16) for transporting a coolant is formed at least partially on the cooling jacket (14). The aim of the invention is to provide a cooling system that is optimized in terms of mounting space and ensures axially equalized cooling. This aim is achieved in that a second spiral line (17) for transporting coolant is formed at least partially, and in that based on a common spiral axis R, both spiral lines (16, 17) form an axially integrated double spiral, wherein the first spiral line (16) is an inflow line and the second spiral line (17) is a return flow line. The invention further relates to a deflection unit (12) for the return into the second line (17), which substantially prevents the static pressure from dropping.
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