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Direct drive propulsion motors have the advantage of simplicity and reliability over conventional geared offerings, but often cannot compete due to size & weight penalties. A new in-slot cooling approach is optimized for torque and efficiency and yields a motor small enough to make direct drive propulsion attractive. This innovative approach to liquid-cooled motor delivers higher torque density...
There is currently no universally accepted way to predict the maximum input/output torque of electrical generators/motors as a function of the machine's mass. A new correlation is proposed for this relationship that collapses the data from machines with masses ranging over more than three orders of magnitude and torques ranging over five orders of magnitude. It is shown that, at least for machines...
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