L
Couple questions:
1) Is cutting the top off the oil bath element part of the finished product, or just something you did to mock up the filter size? I assume it gets clamped down on top of the paper element inside the lid.
2). (This is not a criticism, I think this has a lot of potential ). Air takes the path of least resistance, right? And my crude understanding of the function (without my oil bath in front of me) would have the air coming through that foam floor you made. Wouldn't most of the air get pulled through the foam INSIDE the paper element, thus bypassing it?
If so, the simple solution would be creating a solid bottom for the portion inside the element.
[quote=JW51]
I don't understand question 1. I cut the bottom off the element to pull the guts out, not the top. I tested the mockup In the top cover and the bowl. Yes , you clamp the two together with a foam spacer and the wing nut to hold it all together.
For question 2, there is no foam "floor", it is a "ceiling", the filter element sits in the bowl directly and seals as any std filter with a rubber rim would. The top of the filter squeezes the foam ring in the cover tightly to hold the filter in place. There is a small ring of uncompressed foam around the outside of the filter that actually acts as a filter itself, increasing airflow, but not enough to bypass the filter. Also, the uncompressed part of the foam inside the filter was left in place to better hold everything in place, and filters the air after the air filter. There is no path that allows any unfiltered air past the filter. I have also done a version with an air impermeable UPE foam that is built up layers but found this version works better and is simpler. One more thing, is I have also done an all-foam version which can be done but I haven't tested yet. I'll put a few more photos up next chance I get.
