My s1r9a9m9 replication!

[gettinwet]

The disadvantage is certainly the much more complex spark plug needed, now with 3 electrodes.

I just saw these this weekend   http://e3sparkplugs.com/

I also want to ask if anyone has tried an aircraft type sparkplug.

I work in the marine repair business and Mercury sells sparkplugs that do not have traditional electrodes. instead of an "L" shaped electrode it is more like a disk.

Any idea how this might change the way the circuit functions?

[Kineticon]

I am not shure, but the differrent shape of the spark's electrodes may require higher voltage. Anyway, a bigger spark gap does it.

[hydrocontrol]

I posted this in another thread but it may make more sense posting here where people are actually trying to get engines to run. This is a simple suggestion for those trying to get a motor to run. What if you remove the spark plug ground tab and just use the piston as the 'ground tab'. I would think that this would create an increasing electric arc size as the piston goes down from TDC and would help the water 'ignite, burn, turn to steam, whatever'  to push the piston down. Why confine the electrical arc to a small predetermined gap. I know when I arc weld I have to get the arc started by being very close to the item to be welded but once I get an arc started I can draw the arc back a fair amount. Seems the same idea would hold for a piston engine electrical arc. If the piston can withstand a gas explosion then a electrical arc should not effect it. Now you may have to use a slightly longer plug just as long as it does not touch the piston top but I think that this may be very effective in always getting a great electrical arc.

[resonanceman]

Bulbs are for just experiment purpose, Previously I am using 700Hz 230V 100Watt Inverter, wattage is problem.

Inverter is in my mind, I am having 200Amps 1200V IGBT pairs for inverter, but right now more focus on starting engine in ideal to get all needed conditions.

major problem is right now is spark plug gets shorted with water and engine oil on its tip, many times it requires opening and cleaning again and again. On my table setup I checked different size spark plugs, 0.5", 0.75" and
1" diameter, I got best results with bigger spark plug. It gives both advantages prevent shorting and more area for
water burning. flame size is without water 0.5" and with water 1.5 to 2 inch in diameter. you can see these photos on previous posts it is with only 175V DC

Capacitor

have  you  changed  your timing?

The  compression pulse would be  very fast   at ignition ...........then condensation  would  happen very  quickly ..especally with a cold engine

Your  oil  fouling  might   be  from   the water condenciing out and forming a vacume .......or  imploding  as some  call it .
This would tend to suck  the oil from the rings into the cylinder  .

gary

[ggx9]

Hydrocontro,

The arc will find a return path through the wrist pin, journal bearings and main bearings and also through the piston rings to the cylinder wall and make weld pits at those points.  I have worked with rotating welding tables with and without brushes. The tables without brushes burned the bearings. A complex system of brushes could be used to carry the arc ground from the top of the piston to ground, thereby bypassing the weld pitting damage. I heard of this idea many years ago for a gasoline engine, but never heard of anyone trying to implement it.

For a similar effect perhaps two spark plugs in the same cylinder could be made to arc from the center electrode of plug A to the center electrode of plug B with a Tesla coil (large Tesla coils can throw sparks 30 feet in free air) if the entire circuit is made to float and not be grounded at either polarity.

Richard