Miata Mailing List: October 1997, Message #109
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From: 	Robert Ullrich <rullrich@ssl.berkeley.edu>

Subject: Re: Electric Supercharger: Design thereof

Date: 	Wed, 1 Oct 1997 12:18:01 +0000



At 09:02 PM 30-09-97 +0000, bbirdwel@netxpress.com wrote:

....

>  Interesting idea. I do not want to be the first to try it out but 

>it does have potential.  This might be worth a thread on the 

>theoretical design of the electric motor and controller circuitry. 

>Hmmm.



We at Kaleva, being interested in RC airplanes cars and anything else

toy-like, had an idea when we first heard about this approx. a year ago.

One of our associates brought in an ad for one of these things that you

could put on an 80cc 2-stroke dirtbike. (!)  Cute.  Useless.



But we got to yakking re the concept:  RC (remote control) jet models, who

can't afford the real ($5-10k) turbofan use ducted fans in their models.

These things displace some serious air at 30k rpm using a airplane engine.

We thought it would be funny to install one of these on the intake:  just

flip the prop a couple of times and you get boost. just link the 2

throttles.  The sound would be, shall we say, unique.  "what you got there

budd? a chainsaw under the hood?"   



So these guys probably took the thing the next step.  Find an electric

motor that spins way high rpm ( less HP required) and hook it to one of

these ducted fan things:  static pressure is low, but when the throttle is

open, PSI would be available.  The last I heard, the thing takes 90 Amps to

spin up, and draws like 60 thereafter........ FWIW

Bet the thing makes a big HMMMMMMM too,  Hey I just thought of a new Mazda

ad:  Our engines go HMMMMMMMM <g>  (boing)

The starting gun has been fired........

Robert Ullrich

Kaleva Guy, Satellite Stuffer