<VV> re;flipping belts

[Ken Campbell]

----- Original Message ----- 
From: "tom zimmermann" <s10birdman1966 at yahoo.com>
Subject: <VV> re;flipping belts


there should be a point where an increase in fan+ alt speed is higher than
the car's needs;;mabe a viscus drive,governed by centrifugal weights at* the
crankshaft * to keep the belt speed in the design limits would be the
answer,or modifying the fan and alt!
>  pulleys
>  to 'uncouple' at the rpm change,allowing them to over-run and 'freewheel'
until everything catches up at a lower rpm...the alt could be turned, driven
separately from an A/C pulley to isolate that load,then deal with the fan by
itself...
>
*********
A long time ago, and far far away ... we used a centrifugal fly-out arm to
disengage the flywheel from the floating clutch parts in our toy cars ...
after some scheming, we decided to just manually re-set the locker arm, ie,
the locker arm was locked until the engine started, then released until
manually reset, usually for the next race, or a pit stop which for some
reason necessitated the engine being killed.  ( oh, the reason for the
clutch locking was to start the car by push starting... after the race
starts, you dont want to stall the engine with a spin out etc.... )
I would think this would work fine in a race car, which would need
recharging only occasionally, and not be used for night racing; an
electronic ignition not needing much charge at all....  the alternator
locked in with a one-shot flyout arm, maybe tuned to fly out at say, 5000
rpm, after which the alternator pulley becomes just a ball bearinged idler
pulley, optimized in size and depth to really hang onto the belt.  This
system would be so simple that someone might actually do it (g) .
Oh, yes, make sure that the belt is coming off at the alternator area before
we fix something that isn't broken.
**********
just a thought, ken campbell, deltawerkes.



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