I've wondered about these. By both brands, there is a mass of weights and
fluids that counteract the shake of imbalance.


I never made it past Phy101 but how I see the problem is that a heavy spot
of imbalance provokes a rotating object to a larger orbit. The instance
of a car tire bouncing I have witnessed myself, but the low side was always
constrained by the pavement.
So, what causes the correction mass to seek the lighter low side?

And what happens under the influence of an engines torsion vibration? The
quick back & forth of the crank's twist, the wind and unwinding,
Is the mass be heavy enough to lag behind the twist of how many.... 8 or 12
twists per revolution??

My guess about the rings on Rv's with the wooden props is its simply a
matter having enough mass on the crank to absorb the torsion of the engine.
Somethig heavy enough to steady down the running of the engine...Somewhat
similar to running a chevy small block minus a flywheel, on the shop floor!.

And a big question of all... why don't we commonly see more of these
mechanisms on vehicles?

Kent Felkins
Tulsa











"Cy Galley" wrote in message
news:7Jjxf.698432$_o.515003@attbi_s71...
I think the down force is the result of gyroscopic precession which is 90
°
for the applied force. Balance rings are not new. Mark Landrol sells one
for RVs with wooden prop that many are happy about.




"Capt. Geoffrey Thorpe" The Sea Hawk at wow way d0t com wrote in message
...
"abripl" wrote in message
oups.com...
I'll give them an 8.5 on the bull**** scale...

Thank you for your technical help. I assume you have tried them
yourself and are giving an objective observation.


Try them? You've got to be kidding.

To quote the web pages:

"However, when sudden braking or slowing occurs, the fluids continue to
spin for several revolutions until they slow down to the wheel speed.
Therefore, the fluid moving at high speed and weighing nearly 28 ounces
per wheel whip around the ring at ten to fifteen revolutions per second.
This weight, when pulled by gravity over the top of the wheel, "falls"
over the front side of the wheel where the force is created which
"pulls"
the wheel down onto the pavement-JUST WHEN YOU NEED IT TO-on sudden
braking over hard bumps or across sheets of water to create a
road-hugging
controlability and anti-sway, anti-drift and anti-trailer hop and bounce
effect"

RiiiiIIIiiight.

Or, from the other web page:

"The Company claims the dissimilar metallic composition of the balancer,
i.e. steel mounting plate and aluminum balancing ring, dissipates
wheel/tire heating while in operation. This feature is called
"ThermoFlow"
by the Company. Basic rules of thermal physics apply as different metals
have different coefficients of contraction/expansion with convection
heat
transfer migrating to the metallic content with the highest coefficient
of
expansion/contraction, i.e. rapid transfer from the wheel/hub/tire
assembly to the steel mounting plate to the aluminum tube."

You don't have to pay for bull**** to smell bull****.

8.5 - you can't get a 10.0 without invoking space aliens AND
anti-gravity.

--
Geoff
the sea hawk at wow way d0t com
remove spaces and make the obvious substitutions to reply by mail
Spell checking is left as an excercise for the reader.