To Russ and the group,
In the Nobel gas engines there are 4 Patents to review.
They are:
3,670,494
3,977,191
4,428,193
7,076,950
When one looks at the simularitys and differences of these one can see that the Papp engine may be a combination of a Sterling engine and an AEROPS Engine.
The latter Engine drops two of the nobel gasses and includes mercury vapor such as is used in murcury vapour rectifier tubes. It uses only helium kripton and xenon of the nobel gasses. The description is much clearer and more concise than any of the other patents. One can build it right from the patent with no quaums of how to do it. It relies on instantanious changes of the gas pressure due to photon bombardment.
In the others (except the last one) Focus coils are used to layer the nobel gasses in cylinder shaped blankets with the heaviest in the outer cylinder and the lightest in the inner cylinder within the center may be Hydrogen gas. The reason I call these Focus coils is because I have worked in television all my employed life. The focus coil brings the cathode ray electrons to a small spot on the florescent screen. In the Papp engine the focus coil trains the current in the plasma to a fine point on the center of the piston. The madjour heat in the gasses comes from the ion bombardment of the piston and the spark points. These metal areas become incandesent under operation. If the gasses are heated on average to 1,450 Celcius, the gas pressure would be five times that at atmospheric pressure. As photon bombardment provides some of the pressure change the tempratuer would not have to be this great to get a 5 times volume increase. By the Ideal Gas Law 5 times volume at the same pressure is equivalent to 5 times pressure if the volume is not changed. As soon as the gas is ionized the The 100 watt RF source is turned on maintaning ionization of the gasses and the spark is turned off. When power has dropped to 50% the current in one of the focus coils is reveresed and the RF is turned off. The effect of this is to allow all gasses to return to a homodunus mix. When this occures the cylinder walls cool the gas to ambient temperature and the piston is allowed to fall back. At top dead center it is again at atmospheric pressure. Thus the closed chamber runs very similar to a Sterling engine.
As we all know Argon is a good insulator and it is used in windows to keep the heat in and cold out. In the Sterling engine a displacer shifts the air alternately to the hot end and then the cold end with the changes in pressure turning the crankshaft. The nobel gases act like the displacer in the Papp engine allowing the gas to be heated when insulated from and then cooled by the cylinder walls when the insulating blanket is disabled.
I hope this description helps you to understand the working of the Papp engine.
Best regards,
Willard Elliott
PS:
IF you do a google search for Renzo Mondeini you will see how ionic bombardment at 350 volts causes metals to be heated to incandesance.
@Willard Elliott
Welcome to the forum. Your introduction of the AEROPs engine to this discussion is great.
In systems engineering, having two systems to compare is very valuable.
One big difference between the Papp and the AEROPS engine is the energy level that the photons run at.
In the Papp engine, x-rays are predominant and in the AEROPS engine UV is predominant.
The polished surface of the pressure chamber will reflect UV but not x-rays.
However, the thin tubes will carry x-rays because they act as wave guides.
The Papp engine design would be well served to add x-ray reflectors to its walls, but that is very hard to do
see
http://www.azom.com/article.aspx?ArticleID=741The AEROPS engine uses the trigatron switch as we have discussed earlier on in this tread and the AEROPS use of this trigger lends credence to the validity to using that concept to fire the high current spark.
The AEROPS pressure chamber should take the shape of a parabolic reflector with the spark at the focus. This will direct the UV rays parallel down the transfer tubes.
The heat generated by the AEROPS engine is a puzzle because such heat is not produced by the Papp engine.
This might be caused by the lack of attention in draining the feedback current. This current may be causing electrical resistance heating.
The firing circuit may be important to look at in the AEROPS engine but I am not competent to do so. Maybe a circuit expert may find it interesting to look at the circuit to see if it has any advantages over what we have been considering for the Papp engine.
The AEROPS patent is found as follows:
Using gas pressure transfer between mated cylinders is an interesting concept to control the throttle. I wonder if it actually works.
The AEROPS patent is found as follows:
https://docs.google.com/a/google.com/viewer?url=www.google.com/patents/US3977191.pdf