Water Sparkplug

[ashtweth]

Hi Greg, thanks for the walk through man , that's more proof our little spark is not doing some thing normal. I think your work is the best purist work here so far for the plasma water engine. We have the GEET finally fitted and ill be adding hydroxy and plasma spark then doing some run time tests, only cause you guys are better at doing the 100% water then us. . Thanks again for the Feedback Greg.

Ash

[sa14785528]

hi greg

i built your ocsillator/ inverter. very pleased to say that it runs! it puts out about 25VAC from each side to the center tap on the primary. my transformer is just more than 1:10 cos i get 270 VAC out at the end(without any load yet, i need to build the rest now)!

it draws 3.5 amp of a car battery just sitting there, but the 10 and 180 ohm resistors get very hot, way to hot to touch. is this normal?

thanks

graham

[gmeast]

newer circuit

hi greg

i built your ocsillator/ inverter. very pleased to say that it runs! it puts out about 25VAC from each side to the center tap on the primary. my transformer is just more than 1:10 cos i get 270 VAC out at the end(without any load yet, i need to build the rest now)!

it draws 3.5 amp of a car battery just sitting there, but the 10 and 180 ohm resistors get very hot, way to hot to touch. is this normal?

thanks

graham

Hi Graham,

Yes I get more than 10:1 without a load too. Those resistors do get hot and as long as they are 5 Watt they should be fine. Do you know what your frequency is?

Almost everyone says that design draws too much current and they have gone to another design. I also just purchased the parts for the "better" oscillator/inverter. It is supposed to draw 1/2 Amp just sitting there. I will keep using the one like we have for a while though. In the mean time here is the newer - better (I'm told) oscillator/inverter circuit.

The 2N1305's should be MJ2955's ... they are the PNP compliments to the 2N3055. The circuit you have already built is one I pulled down off of the internet. This newer one was posted here earlier this month or last.

The components on the output look like a voltage doubler. I got confused when I first saw it. The output of the transformer should only be connected to the doubler and the VexUs circuit ... not to chassis ground like in the picture. We have to maintain the isolation amd only pin the '+' side of the "V" circuit to ground.

Peace,

Greg

[gmeast]

fun

Hi Greg, thanks for the walk through man , that's more proof our little spark is not doing some thing normal. I think your work is the best purist work here so far for the plasma water engine. We have the GEET finally fitted and ill be adding hydroxy and plasma spark then doing some run time tests, only cause you guys are better at doing the 100% water then us. . Thanks again for the Feedback Greg.

Ash

Hi Ash,

You're welcome and I hope to have the oil leak on my Bug stopped up soon and then it's back to testing. I hope to get the water way up upon resumption but I'm happy AND surprises at the results I got !

Greg

[Ursine]

Chris,

These are the specs for the plug:

Champion RDZ19H
10mm
3/8" reach
5/8 socket

I called Champion to find a non-resistor plug. When I told him I wasn't too concerned with the reach (determines if it's a hot/cold plug), he asked me what I was burning. I told him I was trying to ignite water vapor. 'CLICK'. He hung up on me.

Dave

[Jetijs]

Greg,
I just built the oscillator circuit that you showed in the last picture. I did have only MJL2501 PNP transistors, so I used them as PNP transistors. Instead of 12k resistors, I used 16k resistors. And my oscillator caps were 0.1uF instead of 0.047uF. I used a transformer form computer UPS. When I started the circuit, I measured 250VAC on the transformer output. I am not sure about the frequency, but judging from sound the transistors make, it is high. Unloaded the circuit consumes 600mA at 13V. The only load I tried so far is a 25w light bulb. It lights up good and with this load the circuit is consuming 2.3A at 13V It seems to work great. Thank you for posting that circuit

[gmeast]

oscillator

Greg,
I just built the oscillator circuit that you showed in the last picture. I did have only MJL2501 PNP transistors, so I used them as PNP transistors. Instead of 12k resistors, I used 16k resistors. And my oscillator caps were 0.1uF instead of 0.047uF. I used a transformer form computer UPS. When I started the circuit, I measured 250VAC on the transformer output. I am not sure about the frequency, but judging from sound the transistors make, it is high. Unloaded the circuit consumes 600mA at 13V. The only load I tried so far is a 25w light bulb. It lights up good and with this load the circuit is consuming 2.3A at 13V It seems to work great. Thank you for posting that circuit

Hi Jetijs,

This is funny ! I'm still getting the parts together and building it as I am reading your post. One of our regular members here posted it last week or before. I need to give proper credit ... need to go back and look for him. It sound to me like it's performing as he said. Thanks for building it 'cause I now feel good about building it too. GREAT !

Thanks,

Greg

[gotoluc]

Chris,

These are the specs for the plug:

Champion RDZ19H
10mm
3/8" reach
5/8 socket

I called Champion to find a non-resistor plug. When I told him I wasn't too concerned with the reach (determines if it's a hot/cold plug), he asked me what I was burning. I told him I was trying to ignite water vapor. 'CLICK'. He hung up on me.

Dave

Dave, that is

thanks for sharing

Luc

[ashtweth]

Dave.. Try what we do just say its for scientific research,

[gmeast]

Inverter Circuit

Greg,
I just built the oscillator circuit that you showed in the last picture. I did have only MJL2501 PNP transistors, so I used them as PNP transistors. Instead of 12k resistors, I used 16k resistors. And my oscillator caps were 0.1uF instead of 0.047uF. I used a transformer form computer UPS. When I started the circuit, I measured 250VAC on the transformer output. I am not sure about the frequency, but judging from sound the transistors make, it is high. Unloaded the circuit consumes 600mA at 13V. The only load I tried so far is a 25w light bulb. It lights up good and with this load the circuit is consuming 2.3A at 13V It seems to work great. Thank you for posting that circuit

Hi Jetijs and all,

Well I got it finished and am testing. The quiescent power is 250ma @ 25.5 VDC I'M STOKED ! The original post -here- was Phil, aka pmonk. Thanks Phil. It does what you said ... THANKS !

Greg

[insane4evr]

Hi Graham,

Yes I get more than 10:1 without a load too. Those resistors do get hot and as long as they are 5 Watt they should be fine. Do you know what your frequency is?

Almost everyone says that design draws too much current and they have gone to another design. I also just purchased the parts for the "better" oscillator/inverter. It is supposed to draw 1/2 Amp just sitting there. I will keep using the one like we have for a while though. In the mean time here is the newer - better (I'm told) oscillator/inverter circuit.

The 2N1305's should be MJ2955's ... they are the PNP compliments to the 2N3055. The circuit you have already built is one I pulled down off of the internet. This newer one was posted here earlier this month or last.

The components on the output look like a voltage doubler. I got confused when I first saw it. The output of the transformer should only be connected to the doubler and the VexUs circuit ... not to chassis ground like in the picture. We have to maintain the isolation amd only pin the '+' side of the "V" circuit to ground.

Peace,

Greg

In pmonk's circuit, searching in nteinc.com site, an equivalent for the 2N1305 is NTE102. I am not sure if this is better and/or more cost effective than the MJ2955. Just my 2 cents.

[Jetijs]

A little about pmonk's circuit.
Today I soldered everything properly, but this did not work very well, I guess that I messed something up. Anyway, I made a new circuit using solderless connections and alligator clips. Everything works well again. I could light up a 25w light bulb and the AC voltage stays at 230V. I tried to light up a 75W bulb, but it lights up very dimmly and the AC voltage across the bulb is 40VAC max. I guess that in order to get more power through, we need to use two additional 3055 transistors in parallel with the ones that we are using already. Or maybe the UPS transformer is just not suited for frequencies this high? What do you think?

The only components that heat up are the 2n3055 transistors, all the other components stay cool.

Thanks,
Jetijs

[sa14785528]

HV polarity?

hi,

im just about to connect up my diode strings, but dont know which way to wire them around. i did the test with wrapping a wire around the spark cables and connecting it to to LEDs, but both of them lit up. then i put a diode in line with the wire and the LEDs lit up no matter what way round the diode was!
im stuck!

i really dont want to put the strings in the wrong way round and blow up the circuit!

thanks

graham

[Kinetix]

Hi, everyone.
Guys, as I recall, the 2N3055 can drive much more power that it does in this circuit that you experiment with right now.
It seems that they do not open totally. So, maybe you should lower the value of the 220R/0.5W resistors. Put 100R/5W instead and compare the results. That will probably modify the oscilating frequency. Of course it will draw a little more power when unloaded, but will give more power at full load.
The bigger the current injected in base (gate), the bigger the current through the transformer, so the bigger the power transferred through it.
2N3055 can drive up to 15Amps (C-E junction) if fed with 7Amps in base.
Best wishes.

[Jetijs]

Ok, will try that out,
thanks.
Graham, You can not blow everything up in wiring the diodes in wrong direction, because if the diodes are in wrong direction, you just wont get a spark at all.
Try this:


Put a diode string in series of the spark plug on the HV output. If you wire it like in the first drawing and you don't get a spark on the plug, that means that your ignition coil HV output is of negative polarity. If you now reverse the diode dtring direction, you should see a spark. This way you will determinate the HV output polarity. So If your HV polarity is Positive, then you need to connect the diode string so that the cathode is connected to the spark plug HV lead (NOT ground). Otherwise, if your HV output is negative, you need to connect the diode string with the anode to the HV lead of the spark plug.
Hope this helps.