Turbo vs Super. was variable comp...variable disp....

[Clare Snyder]

xxalexx at ix.netcom.com wrote:
> 
> > From:          "Espen Hilde" <mwichstr at online.no>
> > To:            <diy_efi at efi332.eng.ohio-state.edu>
> > Subject:       Re: Turbo vs Super. was variable comp...variable disp....
> > Date:          Sat, 21 Feb 1998 03:26:59 +0100
> > Reply-to:      diy_efi at efi332.eng.ohio-state.edu
> 
> > The fameous Merlin engine used a turbine that was coupled to the crank
> > shaft.
> > Some Scania diesel engines to.
> >                 Espen
> Known as turbo compounding, also allows use of supercharger,
> developed in WWII before jets and turbines took over power
> when discovered pistons not needed.
>   Alex

I BELIEVE HE WAS REFERRING TO THE CENTRIFUGAL SUPERCHARGER, in
comparison to the positive displacement type supercharger commonly
referred to. The centrifugal unit works like a turbocharger, but is
shaft driven instead of exhaust turbine driven. Works good for low boost
(altitude compensation, for example).  It does not provide a "positive
boost" like a positive displacement unit.
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