I'd also like to see your "10 pages...". I see a couple potential bad assumptions in your statement. First, the air does not bubble through the oil. It passes over the top of the oil where the heavy stuff falls out, and then passes through the mesh which is covered with oil mist sucked up off the oil in the bottom of the filter. Bubbles have nothing to do with how it works.
Also, as someone else pointed out, air flow through the mesh would be turbulent flow, not laminar flow.
As a point of comparison, what do you think a K&N filter is? It's nothing more than a mesh covered with oil. If a K&N can remove fine particles with air passing through a single thin layer of mesh, how come air passing through inches of oiled mesh in an oil bath filter won't have even more particles removed?
I did a quick search & didn't find any definitive comparisons of filter performance. I'd suspect that manufacturing costs probably had a lot more to do with the change to disposable filters than filter performance did. I also saw something about emissions...apparently the oil mist from an oil bath air cleaner increases emissions.
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Today's Featured Article - Picking Corn - by Rick Nikolich. It was the day before Christmas shutdown at work and I asked our lead engineering expert Scott Andrzejewski what he was going to do over the holidays. He said that he had some corn that he still needed to pick with an antique one-row New Idea corn picker. Scott has a nice farm about an hour north of Lansing in St. Johns, MI. He wanted to get the rest of his corn in by the next day (Christmas Eve). We had about an inch of new snow on the ground and single digit temperatures. So in the bac
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