doing some thinking...

[denn454]

i was surfing around ebay and came up on the "electric supercharger" the fan in a tube. i read it and got a good laugh. then i started thinking. why do peopel use electric water pumps? electric fans? the answer is simple, it doesn't suck up as much power, your already spinning an altinator, why not use it.

there is no reason an electric motor can't spin as fast or with as much torque as a normal cyntrifical blower spins, whats that probably 10,000 rpm's? an electric motor can do that pretty easly and still make plenty of torque to move some air. so wouldnt' it not only be possible, but beneficial to make an electric driven blower? i know the little fan in a tube won't work, but i'm thinking like a compressor housing off a turbo, or maybe a roots based design, something that would be capable of making positive boost. to me it sounds like a great idea. it wouldnt' be a little "put this on any car" thing it would be more application specific as it would be big, probably using a motor similar in size to a starter motor and a big trubine or whatever kind of blower housing. it would be able to come on at any point, 0 lag, and wouldn't lower the boost with lowr prm's like a blower does when shifting. the boost level would be 100% tunable, and i'm sure it would be able to be connected to a knock sensor to reduce boost when knock is seen. when you don't want it just turn it off. have a one way bearing in it so its non restrictive. basically is the same idea as those silly e-bay items only suped up and actually worth something. the only down sides i could see would be the need for a pretty solid electrical system, probably no more than what would be required to run a mild stereo though.

i of corse dont' have the money to actually make something like this, much less produce it, i'm just thinking out loud.

 

[turbo buicks]

turbo compressor wheels spin up to 100,000+ rpm

 

[KEVINS]

The 14volts the charging system puts out can't produce enough voltage to push that volume of air to make boost at high rpms. Just to spin a supercharger like a Paxton/Vortech at max boost takes approx 100+hp for a high HP race engine. I can't remember which BB we were talking about this but there was talk about designing an electric SC but it would require a VERY LARGE capacitor to be charged up then "discharged" to spin the blower for a run.

ks

 

[XLR8]

I was talking cars with a 22 year old. He said he had a Mits. Gallant V-6 with a supercharger. He showed the engine to me and I didn't see a S/C. he said it's electronic and pointed to a piece of plastic (the size of a GN MAF) connected to his intake and said, "there it is."
Then he proceeded to tell me how he can probably hang with my car at the track.

 

[NCC1701]

LMFAO...............

You should tell him "Yeah, you probably can now, wanna run it???"

Then proceed to blow his doors off

Sometimes you can talk till you're blue in the face, but putting him away will open his eyes Immediately

 

[bruce]

There are Electric Supercharges, available.
Generally they use a 42v system, and even then have a limited work period before they have to recharge. It takes alot of energy to drive any blower.

I didn't mark the site, but googling should get you more info., about them..

 

[S2V6RACER]

Originally posted by XLR8
he said it's electronic and pointed to a piece of plastic (the size of a GN MAF) connected to his intake and said, "there it is."
Then he proceeded to tell me how he can probably hang with my car at the track.

He probably still puts playing cards in the spokes of his bike too.

 

[Drac0nic]

All things considered a turbo is estimated to pull what %33 of the engine's power out of the exhuast stream. All things considered on a 100 HP motor that's 33 horse. You multiply that by 746W and get 24,618 watts. You divide this by 12 voltsa and get 2051.5 amps, not practical by any stretch of the imagination.
I had a mechanic I know say that alternators may die out in a decade or so due to a device called a peltier, which is similar to a bi-metal strip which would extract energy from the exhaust to provide electricity.
Another interesting tech I've heard of is a system that uses a motor to spin a turbo up when it's going to eliminate lag. All things considered if the exhaust took over after demand became high the current draw would be minimal due to the lack of actual torque required. (yes, way too much engineering time)

 

[denn454]

Originally posted by Drac0nic
All things considered a turbo is estimated to pull what %33 of the engine's power out of the exhuast stream. All things considered on a 100 HP motor that's 33 horse. You multiply that by 746W and get 24,618 watts. You divide this by 12 voltsa and get 2051.5 amps, not practical by any stretch of the imagination.
I had a mechanic I know say that alternators may die out in a decade or so due to a device called a peltier, which is similar to a bi-metal strip which would extract energy from the exhaust to provide electricity.
Another interesting tech I've heard of is a system that uses a motor to spin a turbo up when it's going to eliminate lag. All things considered if the exhaust took over after demand became high the current draw would be minimal due to the lack of actual torque required. (yes, way too much engineering time)

intresting stuff! how you could get electricity out of the exhaust is way above my head. unless its also ran lke a turbo which probably isn't a bad idea.

in my time spent thinking i've also thought of a trubo/blower, uses a belt for the initial spool up untill the exhaust can spin the turbine faster than the belt is (with a one way bearing) sounds overly complicated and really worthless but intresting none the less.

 

[$1987 GN$]

Originally posted by denn454
intresting stuff! how you could get electricity out of the exhaust is way above my head. unless its also ran lke a turbo which probably isn't a bad idea.

in my time spent thinking i've also thought of a trubo/blower, uses a belt for the initial spool up untill the exhaust can spin the turbine faster than the belt is (with a one way bearing) sounds overly complicated and really worthless but intresting none the less.

It's basically uses the a thermal temp difference.

And no moveable parts, the current output on a unit is fairly high.

The cost to manufacture them at present is high also.

Thermal generators have been around for some time and work quite well.

There are used today in a lot of remote locations where getting power to the location is very costly, places like the Amazon just as an example.

They still do not have a capability to store energy, but a high current caps are capable of doing that with ease.

Later AJ