Water Sparkplug

[ashtweth]

Still packs a punch Greg!

[Jetijs]

Great stuff!
Thank you.

[gmeast]

new video - efficient oscillator

Hi everyone,

video showing new oscillator running VexUs circuit with very low current draw.

find here:

YouTube - VexUs circuit not blowing stuff up

Peace,

Greg

[pmonk]

Cheaper microwave diodes

Guys,

here is a cheaper source for microwave diodes: Mat Electronics Microwave Oven - Diodes

Regards,
Phil

[dllabarre]

Nte517

Thanks guys.

The parts are shipped already.

DonL

[michaelpaul]

Does anyone have an online source for NTE517's?

My local electronics store just told me they can't get then now.

Thanks,
DonL

Might want to go to NTE517
that's were I got mine.
Mike

[gmeast]

Nte517

Or an alternative to the NTE517s would be fine also because they are expensive.

Thanks
DonL

Hi DonL,

Mouser show in stock.

Greg

NTE517

[dllabarre]

Or an alternative to NTE517

Does anyone have an online source for NTE517's?

My local electronics store just told me they can't get then now.

Thanks,
DonL

Or an alternative to the NTE517s would be fine also because they are expensive.

Thanks
DonL

[dllabarre]

Nte517

Does anyone have an online source for NTE517's?

My local electronics store just told me they can't get then now.

Thanks,
DonL

[gmeast]

power-end caps

Hi everyone,

I added my two cooling fans. Those things are very electrically noisy. Because of this I noticed that the Oscillator / Inverter is sensitive to noise on the power supply. So I added 2000 uF across the 12 VDC 'at' the board and it mostly went away. I'll use more on the final installation. I also did a 'short' test and the circuit handles that just fine ... one minute short on the output and the transistors stayed cool.

So, make sure your input power lines are "quiet" or there might be an effect on the circuitry.

Greg

[gmeast]

oil leak

Nice work, Greg. Can't you use a drop of SuperGlue to stop that oil leak in the Bug? And you will be able to continue the experiments with plasma. We all wait the results.
.............................................
Best wishes.

Hi Kinetix,

Thanks. The oil leak comes from the failure of one of two magnesium mounting tabs that broke off of the block. The tabs hold the oil cooler onto the oil gallery holes. It requires a mechanical fix. The engine is out of the Bug ... needed to re-torque the heads anyway. I'll post some pictures.

My vapor system produces steam from an I-V drip system that drips water onto one of the hot exhaust pipes inside one of the heater boxes. So I am ingesting high steam-content air ... no water droplets.

Thanks again for your comments and suggestions re the Oscillator.

Greg

[Kinetix]

Nice work, Greg. Can't you use a drop of SuperGlue to stop that oil leak in the Bug? And you will be able to continue the experiments with plasma. We all wait the results.
Does your Bug have a PCV valve or a calibrated little air hole? If yes, you could use a water bubbler to introduce water vapour through it. On the intake pipe of the bubbler put an adjustable valve so that the bubbler will run with a little vacuum, to get more vapour. The bigger the surface of the bubbler and the smaller the many intake air holes, the more vapour also.
Jetijs, I think it was a good choice to use another type of transistors for Q3-4. In fact, I think that MJL21194 is better than 2N3055. They have the same amperage but MJL21194 has a much higher voltage. And, yes, is easier to mount on a heatsink! There are more possible choices for those two transistors, I think (e.g: BU208, BU508A, BU526A, BUS14, BUX80, etc). Probably any high voltage power transistor will do.
Aaron, nice piece of information. Too bad that we don't have all the details.
Best wishes.

[Aaron]

A. K. Oppenheim | Plasma Ignition

URL=http://imageshack.us][/url]
By maxcThis is from september of 1979. Professor A. K. Oppenheim was working on the plasma jet plug. But no details on how to build it.

Thanks for posting that Maxc - do you have the whole article?

I found this reference:

"A development that is still in the experimental stages is the plasma-jet ignition developed by Professor A. K. Oppenheim at the University of California at Berkeley which is described in the September 1979 issue of Popular Science beginning at page 74.

The plasma-jet ignition utilizes an ionized plasma which is injected into the combustion chamber. Initially, the ion cloud penetrates into the chamber and expands. As it expands very little combustion occurs. When the ion cloud has expanded sufficiently, combustion proceeds rapidly from many ignition points rather than from a single spark because the plasma comprises hot, highly charged particles. In this manner, almost the entire charge is ignited and burns smoothly.

There is no flame front which propagates from a single spark. Thus, the plasma-jet ignition permits the use of lower octane fuels and much leaner mixtures of fuel and air than internal combustion engines using conventional spark plug ignition. However, the plasma-jet ignition is not yet commercially feasible for operating an engine.

In the same article of the September 1979 issue of Popular Science, another recent development is described which is called the controlled-combustion system. Combustion is initiated in this system by simultaneous fuel injection and spark ignition.



By injecting the fuel into the vicinity of the spark, the air within the combustion chamber is caused to swirl about the chamber. The products of combustion, the flame front, and the combustible mixture are swept downstream and away from the spark by the air swirl. In this manner, cylinder pressure builds at a controlled rate.



The spark is discontinued, but fuel injection continues to feed the swirling flame front until the maximum power is reached. The fuel injection is then discontinued and the intensity of the flame front fades, but combustion continues until all of the fuel is consumed. This system has no octane requirements and operates efficiently and cleanly on a leaner fuel/air mixture than conventional spark plug ignited internal combustion engines require."


That reference was from this patent..this patent is NOT about the one in the magazine but a patent that references it:
Amplified radiation igniter system and method for igniting fuel in an internal combustion engine - Patent 4314530
and
Pre-combustion system for internal combustion engines - Patent 4319552


References Oppenheim:
Plasma arc ignition system - Patent 5568801


Seems like a lot of plasma references to this person.
"a. k. Oppenheim" plasma - Google Search

[Aaron]

my vids

Hi Dingus,

Here is the new video account if my vids are what you're referring to:
YouTube - energeticforum's Channel

There are still some that I haven't put back up but will as I come across them.

[Dingus]

Where did arron's video go? It says it was removed due to terms of use violation.