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Non-Cryogenic Electric Motors

Power Density, kW/kg

6

Various stages of

5

testing for electric car

4

3

0

Reported

Oxford

Raser

PML-FL

Switched

Average

Univ.

Symetron

Reluctance

Motor

2

1

2008 Estimate

Recently developed lightweight motor by University of Oxford claims to have high power density

  • Power density of non-cryogenic motor will continuously increase with the

growth in electric car market (> 6 kW/kg motors can be expected in future).

  • > 20 kW/kg power density can be achieved for cryogenic motors

EAA Electric Aircraft World Symposium 2010: Michael Dudley

7

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