Electric-powered Turbocharger

[BUTLER, Tom]

You wouldn't have to worry about heat damage if you put the electric
motor on the compressor end of the turbo shaft.

> -----Original Message-----
> From:	Frederic Breitwieser
> [SMTP:frederic.breitwieser at xephic.dynip.com]
> Sent:	Monday, February 23, 1998 5:14 PM
> To:	diy_efi at coulomb.eng.ohio-state.edu
> Subject:	Electric-powered Turbocharger
> 
> >   One idea I liked, (and is commercially available as an automotive
> after
> > market modification),  is to have a turbocharger with a stator?
> (spinning
> > of an electric motor) built into the turbine.  For acceleration from
> low
> > rpm's, current is applied and the unit effectively becomes a
> centrifugal
> > supercharger, once the engine speed builds, the exhaust takes over
> and it
> > functions like a turbo (current no longer applied, and the stator
> spins
> 
> I like this idea very much, and I can't imagine this being terribly
> complicated to retrofit - its a matter of having a drive shaft,
> attached to
> a clutch (an A/C clutch), at the end of the shaft, which if its about
> 1-2'
> long, wouldn't experience too much heat damage from the turbocharger.
> While low RPMs are happening, whereas the turbo is spinning under
> electric
> power, you'd have negative back pressure, and boost going in.  I'd bet
> there are some noticable advantages to this.
> 
> Something to definately try!!!
> 
> 
> Frederic Breitwieser
> Bridgeport, CT 06606
> http://www.xephic.dynip.com/
> 
> 1993 Supercharged Lincoln Continental
> 1989 4-Door Softtop Humvee (Hummer)
> 2000 Buick GTP (Mid-engine track car)
> 
> ---