Well a guy on S10forum.com has got a pattent on a way to to recylce the air you use on your air ride setup.
I cant give exact details. But it basikly dumps your used air into a tank and then compressors push that air back threw another compressor doubling the time needed to fill a tank. Since the compresors are using already compressed air to make higher PSI it makes it way faster.
His setup filled his 12 G tank from 120-200 in 16 seconds. He estimates 160-200psi in a 5 gallon in 2 seconds. Ive seen videos of this. Its insain.
BOOST AIR
He is running one EDC (which wont fit on our cars) and two reg compressors.
what the setup does is make whatever compressors you have work like double.
example. My 2 450s would work like 4 450s.
Its a long read. but if your into playing around alot then this is for you.
And it works for those running nitrogen instead of air. Makes a tank last much much longer.
I am all that is man
thats retarded how is he going to go get a pattent when people have been doing this for a while
Oh well smart man now he'll be making money off this
theres a kid at my school running this onhis ranger and he said it doesn't help that much
I'll try and get pics if he'll let me
How exactly is your friends hooked up? THere are many dif ideas along these lines that people have tried. But none ever worked quite right. Viair even had some ideas and couldnt figure it out. Now they are helping this guy out with specs and cheep pricing so he can get the ball rolling.
DId you read the whole post? DId you watch the video that showed the tank fill in 16 seconds?
THis set up fills a 12 gallon tank from 110-145psi with two Viair 380s in 2 minutes.
It takes my 2 450s longer than that with just a 5g tank.
THose same two 380s and york EDC fill from 120-200psi in about 16 seconds.
I am all that is man
THis a pick of the guys setup.
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THe top tank is the main tank.
the dump valves have lines running to the bottom tank.
So after dumping a couple times pressure is building up in that bottom tank but not so much that the car will not drop all the way down.
When compressors kick on they are feeding from a tank that is already under pressure making there job alot easier. They can then work faster toward filling the main tank back up to pressure.
NOW this only works quickly if you stop playing around with the switches shortly after the compressors kick on. If you bleed the tank from all pressure then of course it will take longer to fill back up.
In the event that you bleed all air from the tank then the compressors will draw air from outside threw that filter you see on the lower tank. THere is a check valve so that air can enter the tank threw filter but not escape.
You may also see that there is a regulator valve between the recylce tank and inlet of the compressors. THis is part of the key to this setup working at which I have no info on nore can I get info at this point. The compressors can only take certain amount of inlet presure in order to work corectly.
I am all that is man
It will not compress any faster if it is simply pulling "used" air from a partially compressed tank. The compressor still has to shove the air into the high pressure tank at the same pressure as before, so there is no difference. What will make a difference is pressurizing the backside of the compressor piston. To the compressor the "high" side would seem like less pressure.
Let's pull out some step by step here:
If the compressor is simply pulling from the "low" tank and pumping into the "high" tank.
1. Pulls in from low tank. Normally the "low" tank is open air at 14.5 psi. Rushes into the vacuum created by the piston pulling down.
2. Piston pushes up and forces the air into the "high" tank. The force required is the "high" pressure times the area of the piston. 115 psi, with a 2 square inch piston, and 15psi back pressure, would be 200 lbs of force (I rounded a bit, so sue me).
So how could we get this working faster?
In step one it really doesn't matter how much air we push into the cylinder. If it's pulling from a low source of 30 psi then it will suck in more air, but it will have to force more air out in step two and we get into all kinds of nasty friction and air flow equations. Take differential equations if you want to know the math.
But what about step two. The speed at which the motor runs is mostly dependant on the force required to pump it in. The forward pressure is only going to get higher, and the piston size probably isn't going to change, nor will changing it solve the problem. So if we increase the back pressure, then we could pump faster. Lets say for S&G that the back pressure is 100 psi (the "low" tank). Then when we pump 115 psi, with a 2 square inch piston, with the 100 psi back pressure, the force is only 30 lbs.
Under these new conditions the pump would run at approximately the same speed at the open air pump pushing air up to 30 psi. Most people know that a compressor pumping at 30 psi runs faster than a compressor running at 115 psi.
Note: There a decent amount of rounding here. And I'm not try to discredit this guy at all. I'm simply explaining how it all works, so people don't get confused. if you used a different style pump, say a centrifical pump (like superchargers and turbos) then pulling from a higher "low" tank would make a significant difference. But with piston style pumps, it's all about the back pressure on the piston.
THis guy stated in a post that he was supliying up to 150 PSI on the inlet of the compressor and then pumping up the main tank to 200 PSI.
So of course it filled up quite fast.
But at the end of that same post he said that
10psi is the highest safe inlet pressure. I think this 10psi number was given to him by Viair.
So I questioned him about this. Asked if he was fillming these videos with the regulator allowing 150 PSI into the compressors just to make it fast for the video. It sure got me fooled seeing that needle wrap around in 16 seconds.
WHen in reality that is an unsafe pressure to apply on a daily basis.
He has now yet to reply to my comment.
I am all that is man
