hey everyone in this video I'll be
explaining flat wheels now fly wheels
are energy storage units and I used to
keep an engine running smooth and to
keep it running when you're not giving
gas or it's in neutral now a good
analogy is a potter's wheel so if you
think about a potter's wheel to have a
little foot press they keep pressing and
it spins a large stone on the bottom and
that's that stones rotating it's
connected to a table in which they hold
the clay and they can shape and mold it
and that clay is spinning at a constant
speed and that's because of the flywheel
down at the bottom that has its inertia
and so it stays at a constant speed even
though the force that you apply is at
intervals so the same idea can be
applied to cars so cars have fly wheels
attached at the end of the engine or
attached to the crankshaft and it's the
item that will be pressed against with
the transmission so you'll either have a
clutch or a turkin torque converter and
the torque converter would be mounted
attached to the flywheel and the clutch
would the clutch plate would press
against it when you were trying to
accelerate or when you're engaging the
clutch rather so the basic idea is if
you didn't have that flywheel on there
you'd have really uneven power
distribution so I went through here and
we've got the four strokes divided up in
take compression power and exhaust so
you've got intake occurring the first
stage your compression occurring the
second stage and then you got your power
stroke so your engine's not producing
any torque when you're not in that power
stroke and then once you get to it you
have a peak of power so you'd have a
jerk if you were in the vehicle now this
is eliminated by adding this flywheel so
your torque is very even and so even
when you're not applying that power
stroke you'll have a power distribution
because of the inertia of the flywheel
maintains power so basically however if
you increase the size of the flywheel
then you can increase the smoothness and
basically level this out so you can see
there's still a little bump you could
get rid of that completely if you just
had a big enough flywheel so why would
you have a really huge flywheel since
you'll have a smoother running
and an even power delivery engine well
there's two problems really
you've got more rotational inertia if
you have a larger flywheel and that
means you've got to spin that flywheel
up and to do that takes a lot of energy
so that's just wasting fuel you're just
trying to get a flywheel spinning that's
not getting you to move anywhere second
added weight you want to keep everything
in your car as light as possible just
for handling purposes for pretty much
all purposes of the performance aspect
of a vehicle so you want to keep the
flywheel weight as low as possible but
still have even torque delivery and
that's the purpose of it now it's
difficult to show you my flywheel
because its internal but here's the
basic idea if you've got the engine here
so you've got the cylinders line across
there and then inside of this case where
there's a clutch the flywheel is going
to be spinning in here and that's
actually what starter motor will attach
to to start the engine