Stupendous Man

I thought I read it was for the computers, but I guess it was for the motors
and servos.

http://www.findarticles.com/p/articl...01/ai_n8840551

http://www.findarticles.com/p/articl...01/ai_n9212160



--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Coasty

I think your basic understanding of smoke systems is remarkable. However I
find a flaw with your theory. The battery is a reusable storage device for
smoke. therefore, one would assume that some sort of one way valve (we can
call it a diode) should be needed to prevent pressure flooding back into the
system while at rest. Unlike the A/C system, the smoke system is collecting
darkness at the headlights and converting it to smoke. This causes the
system to fill up. The battery can contain much higher pressures and volumes
than the wires. If this pressure exceeds the capacity of the wire, it will
cause a rupture as you described. The rupture can be controlled by a
sacrificial device known as a fuse. But this still doesn't eliminate the
problem. Perhaps a two way valve (zener diode) is used to allow a small
amount of pressure to return to the system, and partially equalize. I find
this theory unlikely though, due to the increase in the force required to
start the pump (which is now under pressure) working again...


Coasty

"DougW" <post.replies@invalid.address> wrote in message
news:Rg_Uf.1643$FD4.1240@dukeread07...
> Mike Romain did pass the time by typing:
>> DougW wrote:
>>>
>>> L.W. ("ßill") ------ III did pass the time by typing:
>>>> Hi Steve,
>>>> There's no way you can reverse polarity even for an instants
>>>> without popping the alternator diodes.
>>>
>>> You know Bill, I wonder why in the long history of automobubbles
>>> they never made different sized terminals to prevent this sort of
>>> mistake. Guess it's just a no-profit motive thing.
>>>
>>> --
>>> DougW
>>
>> Umm..... They ARE different sizes on those top post batteries Doug.
>> Folks figure out it's the wrong way before they can get it tightened
>> down usually but it's the last touch that blows things.
>
> doh. :)
>
> I should have said different types or keyed like one side one top or some
> such.
> The battery I had in mind was a forklift one where they have a polarized
> connector you can't get on the wrong way.
>
> They could also make them wrench proof. .. you know that part where your
> snugging down the positive and bang the wrench up against the
> alternator/etc. :)
>
> --
> DougW
>

Coasty

I think your basic understanding of smoke systems is remarkable. However I
find a flaw with your theory. The battery is a reusable storage device for
smoke. therefore, one would assume that some sort of one way valve (we can
call it a diode) should be needed to prevent pressure flooding back into the
system while at rest. Unlike the A/C system, the smoke system is collecting
darkness at the headlights and converting it to smoke. This causes the
system to fill up. The battery can contain much higher pressures and volumes
than the wires. If this pressure exceeds the capacity of the wire, it will
cause a rupture as you described. The rupture can be controlled by a
sacrificial device known as a fuse. But this still doesn't eliminate the
problem. Perhaps a two way valve (zener diode) is used to allow a small
amount of pressure to return to the system, and partially equalize. I find
this theory unlikely though, due to the increase in the force required to
start the pump (which is now under pressure) working again...


Coasty

"DougW" <post.replies@invalid.address> wrote in message
news:Rg_Uf.1643$FD4.1240@dukeread07...
> Mike Romain did pass the time by typing:
>> DougW wrote:
>>>
>>> L.W. ("ßill") ------ III did pass the time by typing:
>>>> Hi Steve,
>>>> There's no way you can reverse polarity even for an instants
>>>> without popping the alternator diodes.
>>>
>>> You know Bill, I wonder why in the long history of automobubbles
>>> they never made different sized terminals to prevent this sort of
>>> mistake. Guess it's just a no-profit motive thing.
>>>
>>> --
>>> DougW
>>
>> Umm..... They ARE different sizes on those top post batteries Doug.
>> Folks figure out it's the wrong way before they can get it tightened
>> down usually but it's the last touch that blows things.
>
> doh. :)
>
> I should have said different types or keyed like one side one top or some
> such.
> The battery I had in mind was a forklift one where they have a polarized
> connector you can't get on the wrong way.
>
> They could also make them wrench proof. .. you know that part where your
> snugging down the positive and bang the wrench up against the
> alternator/etc. :)
>
> --
> DougW
>

Coasty

I think your basic understanding of smoke systems is remarkable. However I
find a flaw with your theory. The battery is a reusable storage device for
smoke. therefore, one would assume that some sort of one way valve (we can
call it a diode) should be needed to prevent pressure flooding back into the
system while at rest. Unlike the A/C system, the smoke system is collecting
darkness at the headlights and converting it to smoke. This causes the
system to fill up. The battery can contain much higher pressures and volumes
than the wires. If this pressure exceeds the capacity of the wire, it will
cause a rupture as you described. The rupture can be controlled by a
sacrificial device known as a fuse. But this still doesn't eliminate the
problem. Perhaps a two way valve (zener diode) is used to allow a small
amount of pressure to return to the system, and partially equalize. I find
this theory unlikely though, due to the increase in the force required to
start the pump (which is now under pressure) working again...


Coasty

"DougW" <post.replies@invalid.address> wrote in message
news:Rg_Uf.1643$FD4.1240@dukeread07...
> Mike Romain did pass the time by typing:
>> DougW wrote:
>>>
>>> L.W. ("ßill") ------ III did pass the time by typing:
>>>> Hi Steve,
>>>> There's no way you can reverse polarity even for an instants
>>>> without popping the alternator diodes.
>>>
>>> You know Bill, I wonder why in the long history of automobubbles
>>> they never made different sized terminals to prevent this sort of
>>> mistake. Guess it's just a no-profit motive thing.
>>>
>>> --
>>> DougW
>>
>> Umm..... They ARE different sizes on those top post batteries Doug.
>> Folks figure out it's the wrong way before they can get it tightened
>> down usually but it's the last touch that blows things.
>
> doh. :)
>
> I should have said different types or keyed like one side one top or some
> such.
> The battery I had in mind was a forklift one where they have a polarized
> connector you can't get on the wrong way.
>
> They could also make them wrench proof. .. you know that part where your
> snugging down the positive and bang the wrench up against the
> alternator/etc. :)
>
> --
> DougW
>

Lee Ayrton

DougW wrote:
> L.W. ("ßill") ------ III did pass the time by typing:
>
>>Hi Steve,
>> There's no way you can reverse polarity even for an instants
>>without popping the alternator diodes.
>
> You know Bill, I wonder why in the long history of automobubbles
> they never made different sized terminals to prevent this sort of
> mistake. Guess it's just a no-profit motive thing.

Maybe not on side-terminal batteries, but all the ones I have here have
big post/little post arrangements. If I replace a battery with the
proper size, the cables cannot reach the wrong terminals anyway.

Lee Ayrton

DougW wrote:
> L.W. ("ßill") ------ III did pass the time by typing:
>
>>Hi Steve,
>> There's no way you can reverse polarity even for an instants
>>without popping the alternator diodes.
>
> You know Bill, I wonder why in the long history of automobubbles
> they never made different sized terminals to prevent this sort of
> mistake. Guess it's just a no-profit motive thing.

Maybe not on side-terminal batteries, but all the ones I have here have
big post/little post arrangements. If I replace a battery with the
proper size, the cables cannot reach the wrong terminals anyway.

Lee Ayrton

DougW wrote:
> L.W. ("ßill") ------ III did pass the time by typing:
>
>>Hi Steve,
>> There's no way you can reverse polarity even for an instants
>>without popping the alternator diodes.
>
> You know Bill, I wonder why in the long history of automobubbles
> they never made different sized terminals to prevent this sort of
> mistake. Guess it's just a no-profit motive thing.

Maybe not on side-terminal batteries, but all the ones I have here have
big post/little post arrangements. If I replace a battery with the
proper size, the cables cannot reach the wrong terminals anyway.

Lee Ayrton

Stupendous Man wrote:
>>You know Bill, I wonder why in the long history of automobubbles
>>they never made different sized terminals to prevent this sort of
>>mistake. Guess it's just a no-profit motive thing.
>
>
> They probably will. Vehicles will soon be made to run at 48 Volts or so.
> It's better for the computers, but will probably let a lot of smoke out if
> you are not careful.

Why so? Higher voltage allows you to run with lower amperage, and
amperage is the smoke-maker.

Lee Ayrton

Stupendous Man wrote:
>>You know Bill, I wonder why in the long history of automobubbles
>>they never made different sized terminals to prevent this sort of
>>mistake. Guess it's just a no-profit motive thing.
>
>
> They probably will. Vehicles will soon be made to run at 48 Volts or so.
> It's better for the computers, but will probably let a lot of smoke out if
> you are not careful.

Why so? Higher voltage allows you to run with lower amperage, and
amperage is the smoke-maker.

Lee Ayrton

Stupendous Man wrote:
>>You know Bill, I wonder why in the long history of automobubbles
>>they never made different sized terminals to prevent this sort of
>>mistake. Guess it's just a no-profit motive thing.
>
>
> They probably will. Vehicles will soon be made to run at 48 Volts or so.
> It's better for the computers, but will probably let a lot of smoke out if
> you are not careful.

Why so? Higher voltage allows you to run with lower amperage, and
amperage is the smoke-maker.