I have gone to my larger tube, the reason being the need for more headroom between the water level and the top of the cell. The smaller tube works extremely well but is so short that the water level is too close to the vacuum on the outlet tube, causing the engine to happily suck out water. I tried a few things to mitigate this but ultimately decided the easiest solution was to just go to a larger tube. As you can see in the video, the larger tube also works extremely well and has good pressure the moment you power it on. The core is exactly the same and is configured the same: 7 plates (16 gauge stainless steel, series 400), spaced 1/16 inch apart and arranged in what works best for me:
-:n:n:+:n:n:-
I was asked recently why I use series 400 stainless. There are two reasons. First, I get it very cheaply as my brother-in-law's company actually throws this stainless out as scrap! Second, these plates are very sturdy and can take very large amounts of current for a very long period of time without being damaged.
NOTE: I just received 24 new SS plates which are much larger (much more surface area) and will be more appropriate now that I'm using my larger tube. They are the same 16 gauge 400 series SS but are 3" by 10" tall. I have not yet but will be installing them in "bazooka joe" in the near future. :)
Note that strictly speaking (to have our terminology correct), this is a common-ducted 7 plate/6 cell series HHO generator, but we refer to it as an HHO fuel cell for short. "Common ducted" just means that the hydrogen and oxygen (also known as hydroxy or oxyhydrogen) gases are released from the cell together. We are not expelling hydrogen gas and oxygen gas separately (independent ducting), so what goes to the engine is an explosive gas with a companion oxidizer. If you have seen videos showing hydrogen being ignited by itself, then hydroxy (hydrogen/oxygen gas or "Brown's Gas") ignited, you'll see very clearly that the hydrogen with oxygen detonates much more forcefully than just hydrogen, which still explodes but has a much slower burn.
The larger tube is shoehorned into the Jeep on the opposite side of the engine, just above the oil filter and behind the air conditioning compressor. Warmed up, this cell pulls approximately 10 amps. I will follow up with some video of the tube installed in the Jeep when you can actually see it. I installed the tube earlier this evening but after darkness had well set in.
See updated photos of the cell and COSM/oscillator at:
http://www.freewebs.com/jhines2/apps/photos/
Hydrogen HHO fuel cell Larger Tube
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