Variable Compression, Variable Displacement you decide

[dzorde]

Think someone already thought of this, too many losses between motor,
generator, pump.  But just another point, if turbo's are better for high
power, why don't top fuellers use turbo's rather than a supercharger as they
are not worried about low rpm power, but only mid to high end power ??

Dan     dzorde at geocities.com


>It occurs to me, that you could make an electric supercharger (big one not
>the little ones some have now) by putting a generator where you would 
>normally put the supercharger, and then putting an electric motor
>with the blower part elsewhere.  With a bit of control in the electronics
>you would probably be able to boost the low end (over a supercharger,
>way over a turbo) and keep the high end from getting too excessive.  I
>figure that doing things this way would probably boost the cost of
>a blower kit somewhere around 1500 (big enough generator/motor pairs and
>the control stuff get expensive).  It may boost the cost more, but
>it would be alot more adjustable on the fly, even computer controllable,
>ie knock avoidance by reduction in boost.   It would give the computer
>to adjust both the boost and the advance to be optimal for power, or
>fuel efficency.   I know turbodyne makes small electric blowers, but
>as far as I can see they don't produce the necessary pressure at
>volume at wot at higher rpms, so only boost the lower curve, which
>with some engines (that have bad lower curves) would be a bit help,
>but not on larger engines for any kind of racing.
>
>
>			Roger Heflin
>