[AR] Re: Electric driven Turbo Pumps

  • From: Uwe Klein <uwe@xxxxxxxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Fri, 16 Dec 2016 09:52:38 +0100

Am 16.12.2016 um 03:33 schrieb Jordin Kare:

Possibly, but it’s also possible to decrease current and increase voltage by 
winding with
more turns and thinner wire, or to decrease RPM and increase torque by 
increasing the
number of poles.  Small electric motors do tend to optimize at higher RPM than
larger ones, but I suspect that at 30 kW you could get a fairly efficient 
direct-drive motor/pump
combination.

for multiphase resp BLCD engines power scales with frequency until you run into iron losses and supply voltage limits.

COTS items are CNC HF spindle motors.

Uwe



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