Water Sparkplug

[dllabarre]

cap type

Quick quesiton:
What type of capacitors are you using in the Vexus?
Electrolytic or something else?

Where on-line can I buy them because my local electronics store doesn't stock 400 volt caps.

Thanks
DonL

[Jetijs]

That's great Mike
I just tried my generator setup using a voltage doubler for my 230VAC input. That is about 650V on the output. Works fine. I used a 75w light bulb as a resistor. At first I made a test with no vexus circuit attached, no booster side, just an ordinary spark. I made the test for longer time to get more accurate results. The ordinary spark circuit did consume all the fuel in 45m40S. Then I attached the vexus circuit with a voltage doubler. I also attached a microwave diode connecting the ignition coils LV positive to the HV output. And I attached a diode string in series with the ignition coil secondary to prevent the booster cap discharge through the secondary in between the pulses. This is the circuit that I used:



Now using the same load and timings, it took 49m14s till the same amount of fuel was consumed. That is about the same percentage (7%-7.5%) of fuel economy as without using the voltage doubler (just about 300V on the booster side). So there you have it. Now we need to think of a way to get water along with the fuel in the engine to see how this performs.
Thanks,
Jetijs

[jstadwater]

Well, that was appearently the correct way to wire it, I got 460VDC from 120VAC input............very cool! I accidentally left the MOT primary hooked up as my resistor (only 1.1ohms resistence), spun the distributor shaft by hand and dang near blew the ends off the spark plugs!!! With a 1.06uF oil cap! Plasma blasted about two inches off the plug ends, I almost wet myself. I really must order a variable resistor, so I can tune this thing in. I even swapped out to a .67uF cap and still was too much for the plugs with the MOT in-line! I put the 100 watt bulb back in and got back under control for now. I think I have ENOUGH voltage for the time being. The extra voltage seems to be showing heat at the diodes now though, I will probably have to go to 4 per plug instead of 2. I'm now going to test a few different bulbs to see what changes with the resistence changes. Later......................Mike

[Jetijs]

Yes, that is right. The left terminals are the AC input, the upper left terminal the positive DC output and the upper right terminal is the negative DC output. I will make a complete drawing later, of course if you still need one, because you already understood everything

[jstadwater]

OK,

Just for confirmation, the top pos and neg on the diagram is output. On the left of the diagram, where the transformer (?) is depicted is AC input. Please tell me if this is correct. Thanks............................Mike

[jstadwater]

Use this circuit:

You just have to attach a light bulb or a resistor in series of the positive output wire and then connect the other resistor wire and the negatibe output terminal of the tripler to your small capacitor.

Thanks Jetijs,
I'm afraid I'm a lame horse when It comes to some diagrams. Could you please draw in the AC input connections, and label the pos and neg DC output like in the pic I posted? The light bulb (resistor) just hooks up in-line in the pos output on it's way to the discharge cap, correct? I test these circuits and play with all this stuff like there's no tomorrow, truth is.....I'm horrified of getting shocked by this stuff. I know if I hook up something wrong, I could fry at these voltages. Just trying to stay safe. Sorry to be a pain, please "bear" with me, I'm still learning. Thanks again...................................Mike

[Jetijs]

Use this circuit:

You just have to attach a light bulb or a resistor in series of the positive output wire and then connect the other resistor wire and the negatibe output terminal of the tripler to your small capacitor.

[jstadwater]

Hey geys,

Here is the voltage doubler I'm using, with some drawn in mods to verify with someone here who knows more than me. Will the mods I drew into this circuit, make a voltage tripler instead of just double..................Or will the whole thing FRY!!

Please see atached pic below, thanks................................Mike

[jstadwater]

Hey Gibs,

Thanks, testing and posting results is the only way we will obtain "perfect circuit" status. I tried inserting a MOT, not sure where it needs to be. These tests w/22uF discharge cap. In-line on the neg. side of the discharge cap to the diodes, kills the plasma event, only regular spark. Same result in the pos side of cap to engine block, no plasma. Those two attempts were with the light bulb still hooked up as a resistor. Inserted MOT in place of resistor (light bulb), notable increase in plasma intensity, still builds heat in the cap and diodes very quickly. Inserted MOT in-line pos side of voltage doubler output to discharge cap, no change noticed. Same for neg. side of doubler output to discharge cap. The only other place I can think to insert it would be before the voltage doubler circuit. Don't think it will change anything, as it didn't inserted in the output side. Let me know if that covers what you had in mind. The more we try, the more we figure out!

The 100 watt light bulb measures 10.2 ohms, the MOT primary is 1.1 ohms. I guess that's why the spark intensity increased with the MOT. I still like the lower capacitence level, I think I will triple the voltage now instead of just doubled. Stay tuned for whatever happens next!.......................Mike

[Gibs]

Results

Hi Gibs

...This time it took 31m36s till the fuel level reached the bottom line. That is about 7% economy
I did not use a diode string in series with the ignition coil to prevent the cap discharge through the secondary winding of the ignition coil. I will do this tomorrow. But that should improve the effect much more. Will try also a voltage doubler circuit.

Thank you,
Jetijs

7% is good news!
It is obvious that something is happening there!

With the voltage doubler and the right capacitance to obtain exactly twice the energy, that will give interesting results to compare... interesting.

Nice work Jetijs, thanks for sharing.

Gibs

[Gibs]

Capacitors overheating

4.7uF caps went over temp too, three minutes at 4,200 rpm temp measured 235 deg. F. I am measuring the temp on top of the cap, between the leads, that is the hottest spot on the cap. Also now using ALL NTE517 diodes, two per plug. Temp was 99 deg. F, plus or minus 2 degrees on all diodes. I am going to see if I can find any of those oil filled caps to purchase, may solve the heat issue..................................Mike

Hi Mike,

I was thinking about the capacitors heating issue and I had this idea, maybe it'll do a difference maybe not but I think it worth the try, at least we will know more about it.

I would introduce in the circuit an inductive load by connecting (as an example) a MOT primary in series with the dumping capacitor and measure any change in plasma intensity and capacitor temp.
BEWARE of the MOT secondary there will be presence of High Voltage pulses!

All the numbers you are sharing with us is your kind contribution to everyone for a better understanding of what really happen in the circuit. Thank you.

Gibs

[gmeast]

4,300 rpm for about 30 minutes.

1.06uF oil filled MW cap, two NTE517 diodes per plug. Voltage doubler is a pair of 450V 120uF caps and a pair of 1N5408 diodes, output 326 volts.

It is currently 88 deg. here. After 30 minutes at 4,300 rpm, plug ends reached 96 deg. F, diodes all within 1 deg. of each other, reached 95 deg. F (hottest one), 1.06uF cap reached 91.5 deg. F.(starting temp was 89.5)

No heating of any wires in the circuit anywhere, including the doubler circuit. I found allot of oil filled caps for sale online, I think I will order a 10uF and a 22uF just to see if they are better for heat control at those rates. Later..................Mike

Hi Mike,

This is great information from which to start characterizing the Vexus. Thanks for being so diligent by instrumenting your work and recording and posting your results.

Peace,

Greg

[jstadwater]

Final test for today............

4,300 rpm for about 30 minutes.

1.06uF oil filled MW cap, two NTE517 diodes per plug. Voltage doubler is a pair of 450V 120uF caps and a pair of 1N5408 diodes, output 326 volts.

It is currently 88 deg. here. After 30 minutes at 4,300 rpm, plug ends reached 96 deg. F, diodes all within 1 deg. of each other, reached 95 deg. F (hottest one), 1.06uF cap reached 91.5 deg. F.(starting temp was 89.5)

No heating of any wires in the circuit anywhere, including the doubler circuit. I found allot of oil filled caps for sale online, I think I will order a 10uF and a 22uF just to see if they are better for heat control at those rates. Later..................Mike

[Jetijs]

Hi Gibs
I did not try a diode string in series with the magneto coil. Instead I attached my custom ignition system to the generator with eliminated waste spark. I made two tests on fuel economy. I took a plastic container and drew two lines on it, one at the top and one at the bottom. I filled the container with fuel and watched till the fuel level reaches the upper line. Then I started the stopwatch and waited till the fuel reaches the bottom line. At first I used an ordinary spark, no booster side. The load was two 300W light bulbs. It took 29m30s till the fuel reached the bottom line. After that I connected the vexus circuit to piggyback the original spark. I used a variac as the power source and a 40w light bulb as the resistor. Again I started the generator with the same timings and loads but with the vexus circuit turned ON. The light bulb went on, but it was rather dimm. The generator has an RPM regulator so that if you use more powerful fuel, the RPM's do not increase, it just turns the fuel line down to maintain the RPM's. This time it took 31m36s till the fuel level reached the bottom line. That is about 7% economy
I did not use a diode string in series with the ignition coil to prevent the cap discharge through the secondary winding of the ignition coil. I will do this tomorrow. But that should improve the effect much more. Will try also a voltage doubler circuit.

Thank you,
Jetijs

[jstadwater]

4.7uF caps went over temp too, three minutes at 4,200 rpm temp measured 235 deg. F. I am measuring the temp on top of the cap, between the leads, that is the hottest spot on the cap. Also now using ALL NTE517 diodes, two per plug. Temp was 99 deg. F, plus or minus 2 degrees on all diodes. I am going to see if I can find any of those oil filled caps to purchase, may solve the heat issue..................................Mike