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Old 07-25-2005, 09:23 PM
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Default making an oil seperator...

...and i need to know how to make the inside.

i have a container about 2" round by 6" long. with 2 connections on the top. one goes to my engine crank case. the other goes to a vacuum source. vacuum amount unknown, but surely very low. but there will be an amount of air flow. and this air will probably have oil mist/vapors in it. i need to remove as much oil as possible(reasonably). now, i figure 1 connection opens to the very top inside. the other connection will go to a tube, that goes down in the container about 3/4-2/3-? of the way. comments ? better design ?
ok, i also need to know which of these connections go to the engine & other to vacuum ???

i'd post a pic. but my main computer is down. and this laptop not the best.
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Old 07-25-2005, 09:34 PM
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I have seen some dessicant breathers on machinery in the plants I have been in, usually in areas sensitive to oil mist. But these were pretty large there might be some smaller ones that would work.

What thinks you Shade?

Jeff
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Old 07-25-2005, 09:58 PM
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Donaldson is making the "Spiracle" crankcase filtratrion system, they're claiming 100% seperation. Maybe it will give you an idea.

http://www.donaldson.com/en/exhaust/...ary/002421.pdf
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Old 07-26-2005, 12:02 AM
bgott bgott is offline
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Old cars use a coarse steel wool. The best example is an oil bath air cleaner. The vapor gets pulled into the mesh, sticks to the mesh and then drips back after you shut it off. Ford 5.0s from the '80s and '90s have a mesh pellet looking seperator pressed down into the block under the PCV valve. It'll clog up after 100,000 miles or so and you have to use a screw on a rod to pull it out to replace it. What are you using it on?
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Old 07-26-2005, 01:09 AM
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Quote:
Originally Posted by Caliber
Donaldson is making the "Spiracle" crankcase filtratrion system, they're claiming 100% seperation. Maybe it will give you an idea.

http://www.donaldson.com/en/exhaust/...ary/002421.pdf
centrifugal separation is most likely the most effiecent but will there be enough air flow to work? The steel wool (coeleser) idea is an easy way. How oil free do you need it.
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Old 07-26-2005, 10:12 AM
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The donaldsons work very well the idea is to slow the hot oily air and let the oil stick to the media a trap and drain back line usually with a check valve in it return the oil to the crankcase when pressure conditions are correct . the check works much like a pcv valve. Terry
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Old 07-26-2005, 02:07 PM
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I haven't look lately at my a/c texts but they have pics of oil separators similar to what may need. I'll do some looking.
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Old 07-26-2005, 03:31 PM
Egon Egon is offline
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Not really sure of what you are looking for but this site may help.

http://www.aircraftspruce.com/catalo...ilbreather.php

Egon
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Old 07-30-2005, 08:49 AM
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well, gents. turns out i already owned the answer to my question. i did a google and came across a mustang forum. turns out they have the same problem i have. they are using one of those el-cheapo air compressor inline filters. i happen to have one. so i took it apart. BAM, theres my answer. now i just need to find a filter element to hang on the down tube. any ideas ?

what i'm making is kinda like this one
http://www.harborfreight.com/cpi/cta...emnumber=43242
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Old 07-30-2005, 09:39 AM
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Quote:
Originally Posted by Blown 4.3
turns out they have the same problem i have.
I haven't figured out yet what the problem is that your trying to solve; I sort of got it that something you have creates a vacuum and you're trying to remove oil vapor from a line from something that you're installing between some unknown other location and the crankcase for some unknown reason because you're trying to accomplish some kind of modification or improvement because of what?
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