idea for onboard air with NON-york comp.

[vortec]

i was thinking about the oiling problem with using non-york compressors for onboard air, and wondered if anyone has tried using pump similar to a turbocharger. run the compressor line to spin the turbine, in order to compress the air in a second line. but unlike a turbo, where the exhaust simply exits as usual after doing its job, the air and oil would need to be returned to the compressor or separate sump. i didn't work out the details while sitting in traffic this morning, but it seems like that concept could work. any thoughts? i don't know what the cost would be to set that up.

 

[longbedder]

Automotive turbos are used to move a large volume of air at *relatively* low pressure. There also is no good way to valve the air off of a turbo compressor so that it stays in the tank (and exposing the tank directly to the compressor face would cause compressor stall).

Piston- and vane-type compressors move low volumes of air at very high pressures, which makes them good for high-pressure tank storage applications. They are also valved by nature - this stages the compression process between the tank and the atmosphere.

All that aside, getting a hold of a turbo is many times more expensive than getting a hold of a York or using an oil separation system on the backside of a Harrison compressor.

 

[cbbr]

That sounds like a complicated way to solve a simple problem.

 

[89yimmiJ]

Also, aren't turbo's, roots and centrifugal superchargers just "air movers". I think only a whipple type set-up would work as that is an actual compressor. But again, a lot of work.

 

[Blue85]

If you want to try this, just use a stock A.I.R. pump. You can get some decent airflow, but not much pressure. Even extreme turbo builds don't build the 90-150PSI we're used to seeing from an air compressor.

Your idea to capture the oil and recirculate it to the compressor is valid, but you might as well do that with a standard A/C compressor.

I know that if I went to the effort and expense of setting up a turbo or centrifugal supercharger under the hood, it would be feeding the engine, not air tools and tires.

 

[vortec]

All that aside, getting a hold of a turbo is many times more expensive than getting a hold of a York or using an oil separation system on the backside of a Harrison compressor.

didn't mean using an actual turbo. too much volume, not enough pressure. and it would take too much force to move. there are plenty of places that sell small pump parts that i thought might work.

That sounds like a complicated way to solve a simple problem.

good point.

 

[BUDDY]

Kilby actually has a kit for it.

Look here.

You just have a pre-oiler on the intake line & connect this kit, (or you're own home made version), into it from the coalescing filter outlet once it gets full or after each time you use the OBA.

It's not necessarily automatic, but it WILL keep oil out of the air lines AND the compressor lubricated. You just have to turn on the OBA & then open the valve off of the filter.

Later,
Buddy

 

[cbbr]

I have a friend who just squirts a little oil in the compressor hen he is going to use it. Downside is that your tires may end up with a little oil in them, but its not a big deal.

 

[BUDDY]

I have a friend who just squirts a little oil in the compressor hen he is going to use it. Downside is that your tires may end up with a little oil in them, but its not a big deal.

Or you could do that.

Later,
Buddy

 

[Big Blzn]

I just got myself a York compressor last week and am using some of the Kilby accessories. I know everyone here has issues with Kilby and they are focking expensive but they have a great website for info on the York compressors, installation, etc. Go to their forums page and there is infinite info when you read everyones thoughts and installs. Terrible pricing but unparralled info for Onboard air applications. can't wait to get my OBA set up.

 

[vortec]

the kit for draining the oil back into the filter looks convenient and easy to replicate.

looks like my original idea isn't the best, but that setting up my compressor for OBA could be pretty easy. might be all it's good for, now. the condenser coil has a big hole in it so the system has been open for a looong time. my seals are probably all dried out and i might even have junk in there.