Arrangement for delivering fluids
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United States of America Patent
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Oct 30, 2012
Grant Date -
Mar 25, 2010
app pub date -
Jan 26, 2008
filing date -
Mar 31, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An arrangement for dissipating heat from components producing high heat flux densities, such as computers, features a combination fan and fluid pump with a magnetic coupling (93) which acts across a fluid-tight partitioning can (52). The pump has a pump wheel (90) connected to a first permanent magnet (92), and an electronically commutated internal-rotor motor (ECM 70) to drive it. The motor has a stator (68) inside which is rotatably arranged a rotor (60) equipped with a second permanent magnet (64). Interaction between the first and second permanent magnets creates the magnetic coupling (93). The stator (68) of the internal-rotor motor (70) is arranged radially outside the magnetic coupling (93). A first shaft (54), arranged on the outer side of the can (52), serves for rotatable journaling of the rotor (60) of the internal-rotor motor (70) and a second shaft (50) inside the can serves for journaling the pump rotor.
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