Question about Waste Spark

[WildBill]

I'm new to this pursuit,    so pardon me if this question has been asked before. Wouldn't it be simpler to run a 2 stroke motor on HHO than a 4 stroke? at least as far as the waste spark and timing are concerned? of course, you would still need to have oil injection for lubrication.... Just a thought.

[mscoffman]

@WildBill

Yes, but that lube oil injection is the key concern, without
doing a lot of chemistry on the exhaust there no chance
of closed loop opr. Ethanol fuel is easier. Plus it's combustion
energy "messes up" the energy balance. Got any ideas...
recoverable silicon lubricant? If that would work...I'm
listening. That stuff is good, but that good?

You would still need to modify the timing I think to 0
degrees TDC. They literally have to start hydrocarbons
detonating before the piston is in a position to accept
energy because of the slow combustion wavefront.

:S:MarkSCoffman

[WildBill]

Good point Mark, I really wasn't thinking about the oil as part of the combustion. Perhaps more along the lines of a dry-sump synthetic  lube circulation system? I know the old Detroit Silver Eagle 2 stroke engines could "run away" when the crankcase oil started to get sucked into the combustion chamber. Hmmm.. Non conbustible lube? 

[Magluvin]

I had a 79 VW rabbit diesel. It had some problem with pushing engine oil into the intake and running crazy high rpms all on its own, till the oil ran low.  Would smoke a whole block. So HHO on a diesel would not be a way to go. lol

Mags

[WildBill]

Maybe the inherit properties of a 2 stroke make it less of a candidate than the 4 stroke, if only because of the lubricating issues. maybe the more sensible challenge is to design a good, reliable timing mechanism for the 4 stroke. Especially if we want low speed, hi-power output.