New axial-thrust traction motor ditches heavy iron and copper stator, slashing materials and energy costs.
in 2020. That's '25' hitched to 15 zeros. More than 40 percent of those electrons were routed through electromagnetic machines. Motors. Even modest improvements in electric-motor efficiency could save mankind gigawatts of power.
For any given power rating, this design is 50 percent smaller and lighter and uses 66 percent less copper. The intellectual property is covered by 32 issued and 44 pending patents, and a new factory in Mexico has already produced 50,000 small industrial motors in 2022, with plans to triple output this year. At CES 2023, the company unveiled its first traction motor application suitable for EVs.
This is far better than cooling a stator via the copper end windings or housing alone, which allows an Aircore motor to tolerate four to five times the current density of a motor with traditional copper windings. This greatly increases the Aircore motor's power density, and those heat-loss reductions pretty much account for the operating efficiency improvement.
Bearings, stators, rotors can all be replaced, greatly extending their useful service life, at the end of which all parts are easily recyclable. One more bonus for the life-cycle analysts among you: smaller, lighter motors are cheaper and more CO2-friendly to ship—twice as many of the industrial versions fit in a container for shipping).Talking to the Infinitum team, I recalled related technologies from past columns that may suggest further improvements.
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