@bumfuzzle

Water or electrolyte? If water please try electrolyte.

Rgds.

D.

@ahchoooo

Maybe you could use something else instead of a spark plug for your spark gap.  Maybe two bolts or screws.  This would get rid of the resistor and prove your circuit.

Darren

I'm using the LV only circuit with an injector nozzle shooting water into the gap. I used baking soda as an electrolyte, never could get it to fire with just water. The first 2 segments were of a "spark plug" that I just threw together. I wanted to see if I could open the gap up any, no can do. After about 4 hits from the big cap I'd have to move the electrode in again because it's basically blasting the end of it away, it's just a piece of 1/8" copper tubing for one side and my injector nozle for the other. With the plug in my injector assembly I can only get one shot with the big cap because it pretty much destroys the ground strap on the plug. I got some tungsten rod from work today and will be modifying the assembly and doing away with the spark plug, hopefully I'll get that done tonight. Then I wanna try it on a weedeater by saturday, I really believe it'll run/idle with the big cap because it's a herendous explosion. I need to pick up some smaller caps so I can see exactly what it takes just to make it idle. Not sure but I think the problem with that big cap would be the charge time on it, can it keep up enough to actually run a motor??

Hi Bumfuzzled,


HAW!!!!!!!!!!!!!!!!  I laughed to so hard I cried.......      Did your Ma get a burn? Hope shes OK.

Sorrry to mention this, *grin* , but all I could think of was one expisode of Jackass where they dragged a live gator into the kitchen for their mum to find........now THAT was very funny.....no harm done ......gator in the kitchen, $400, her reaction........priceless  :-)

Ok - back to the post.

Great research. I am starting to think a quick series of pulses per firing stroke for an engine looks more likely to produce a prolonged burn by in effect producing a long HOT pulse to create in effect a constant plasma ( i.e. stretched over 4 pulses ......pulse-pulse-pulse-pulse ) . I have seen the Meyer patent which shows pulse trains, so I wonder if we could have say 4 caps each on its own relay, and fire each cap in sequence to produce a pulse trian.

I think the 4 smaller pulses in sequence makes sense, as using a big cap might have a slightly longer pulse, but ultimately will just melt things. My thinking is that 4 smaller caps ( maybe 200 uF each ? ) fired one after the other in sequence by control electronics would likely create a long plasma but ( hopefully ) not melt the tip of the plug - because each of the 4 caps is smaller in size. I am starting to think that the key may be getting a constant electrical "burn" into the water, but with enough energy to do this, but not too much else the plug tip melts. Hmm...the art of balance......

SR19.... used in effect a high speed electro-mechanical pulse generator ( an electromechanical oscillator - which is two 12 volt car relays flip-flopping back and forth at speed, which makes a buzzing sound when it does this ) which I am now starting to think generates the pulse train to the plug. I am thinking relays are used *because* they can handle the high current and are cheap, where as power electronics may not be up to it. Hopefully someone may try this and let us know their results.

Thoughts?

Cheers & beers,

Steve.

Quote from: plasmastudent77 on July 24, 2008, 07:21:02 PM
Hi Bumfuzzled,


HAW!!!!!!!!!!!!!!!!  I laughed to so hard I cried.......      Did your Ma get a burn? Hope shes OK.

Sorrry to mention this, *grin* , but all I could think of was one expisode of Jackass where they dragged a live gator into the kitchen for their mum to find........now THAT was very funny.....no harm done ......gator in the kitchen, $400, her reaction........priceless  :-)

Ok - back to the post.

Great research. I am starting to think a quick series of pulses per firing stroke for an engine looks more likely to produce a prolonged burn by in effect producing a long HOT pulse to create in effect a constant plasma ( i.e. stretched over 4 pulses ......pulse-pulse-pulse-pulse ) . I have seen the Meyer patent which shows pulse trains, so I wonder if we could have say 4 caps each on its own relay, and fire each cap in sequence to produce a pulse trian.

I think the 4 smaller pulses in sequence makes sense, as using a big cap might have a slightly longer pulse, but ultimately will just melt things. My thinking is that 4 smaller caps ( maybe 200 uF each ? ) fired one after the other in sequence by control electronics would likely create a long plasma but ( hopefully ) not melt the tip of the plug - because each of the 4 caps is smaller in size. I am starting to think that the key may be getting a constant electrical "burn" into the water, but with enough energy to do this, but not too much else the plug tip melts. Hmm...the art of balance......

SR19.... used in effect a high speed electro-mechanical pulse generator ( an electromechanical oscillator - which is two 12 volt car relays flip-flopping back and forth at speed, which makes a buzzing sound when it does this ) which I am now starting to think generates the pulse train to the plug. I am thinking relays are used *because* they can handle the high current and are cheap, where as power electronics may not be up to it. Hopefully someone may try this and let us know their results.

Thoughts?

Cheers & beers,

Steve.

No, mama is just fine. She came downstairs to see what all the noise was about, she wasn't expecting the lights to be turned out and really wasn't expecting that loud bang. I'm tellin' ya it's very loud and my two young nephews were really getting a kick out of it.  I do all my building/experimenting at my parent's house because that's where everything is, the lathe, mill, power supply with variac etc.

Somebody else will have to build the pulse electronics because I wouldn't know where to start, but I will say with the smaller cap and my lil injector assembly it will fire as fast as I can pulse the solenoid for the nozzle, but a 200uf isn't gonna be much of a bang.

I'm headed over there now to modify the injector, hopefully the tungsten can withstand a lil more abuse.