I think you make a very good point JanA.
That the effectiveness of the cleaning system should be measured ONLY by it’s results at the engine.
And by this measure the different settlement systems work no better than yours, or anyone else’s cyclones.
The settlement chambers do rob less engine power though.
It takes engine power to suck-spin-flow cyclone’s.
Both cyclone and settlement chamber users can claim success by showing collected black materials. So, what, eh?
Neither can show clean engine intakes.
Three other systems have, and can:
The large surface area many elements hot box membrane filtering systems. The Government/University Swedish systems. Vesa Mikkonens many tubes of GoreTex, TeraTex fabric. As done by Dutch John and Patrick Johnson too. These all do work. But big heavy and bulky for the large all-under negative pressure housings system. And once the filtered out cake forms . . . one hot ember sucked in . . . and they burn up.
Ben Peterson tried this system too. Then changed over to “caldo rods”. Hollow permeable ceramic tubes. That worked too. Same cleaning procedure - back blowing clean. But . . . they were vibration and thermal shocking sensitive. The rods were expensive, and would eventually from shocking, crack or shatter.
Then you have Max Gasmans system of overcooling the gasses to wring out moistures washing out soots. Then re-heating the gasses. And keeping them warmed thorough an effective commercial pleated paper air filter. This filter in an insulated gas tight housing. The filter gasses then keep warned, up and through to the engine intake. Complex to build. And what do you do until all of it is up to operating stable temperatures? How to keep this system temperatures stability from my; this morning -2C, 40% r.h.; to todays expected high of 15C 90%r.h.??
Sorry Max. Color me skeptical.
Then Joni’s evolved system making only blue flare gas to his engine.
And he has two engine tear down videos showing clean intakes and clean piston tops and combustion chambers.
So this is the one I will be exploring now. How the hell does he do this?
What operating limitations does this impose?
Small hopper capacities?
Long warming up to all operating temperature stability?
My points JanA is it is the soot-up, and then intentionally burn out intake folks that are running up the actual usages and mileages. Yours included. Cyclone. Or, no cyclone.
You do first; what can be made to work.
Improvements that would than take away from that then proven baseline usages are not improvements.
Just added complexity.
Fancy cake frosting.
Clothing sparkle shiny made. Or tight ,restricted usage, tailored made.
I like simple sheet cake. And loose work clothing.