The Papp engine and cavitation

I am beginning to understand that the Papp engine was a cavitation based device.


In the 1960's Papp used water for his fuel. Papp must have produced water crystals in the compression part of the cylinder cycle where the volume of the cylinder was decreasing. During this increasing pressure environment inside the cylinder, cavitation bubbles must have formed thereby producing ultra dense water crystals.

For example, some larger diesel engines suffer from cavitation due to high compression and undersized cylinder walls. Vibrations of the cylinder wall induce alternating low and high pressure in the coolant against the cylinder wall. The result is pitting of the cylinder wall, which will eventually let cooling fluid leak into the cylinder and combustion gases to leak into the coolant.

Cavitation seems to be a problem inherent to the design of all sorts of internal combustion engines.

From about the 1980s, new designs of smaller gasoline engines also displayed cavitation phenomena. One answer to the need for smaller and lighter engines was a smaller coolant volume and a correspondingly higher coolant flow velocity. This gave rise to rapid changes in flow velocity and therefore rapid changes of static pressure in areas of high heat transfer. Where resulting vapor bubbles collapsed against a surface, they had the effect of first disrupting protective oxide layers (of cast aluminium materials) and then repeatedly damaging the newly formed surface, preventing the action of some types of corrosion inhibitor (such as silicate based inhibitors). A final problem was the effect that increased material temperature had on the relative electrochemical reactivity of the base metal and its alloying constituents. The result was deep pits that could form and penetrate the engine head in a matter of hours when the engine was running at high load and high speed. These effects could largely be avoided by the use of organic corrosion inhibitors or (preferably) by designing the engine head in such a way as to avoid certain cavitation inducing conditions.

To stop the cavitation based erosion of the cylinder walls and the subsequent loss of compression over time, Papp went to noble gases which produce ultra dense noble gas crystals during the compression stage of the cylinder cycle but the formation of ultra dense noble gas crystals did not damage the cylinder walls. Papp used noble gas additives in his fuel formula in the design of his water fueled engine. In his development work on that fuel type, Papp must have discovered the noble gases can form ultra dense crystals just like water does.

When Papp fired a spark, the ultra dense noble gas crystals exploded as happens in the Holmlid experiment when the ultra dense hydrogen crystals produce atomic particle fragments that move outward at 3/4 the speed of light. Currently, Holmlid does not capture that huge amount of energy inherent to his expanding plasma.

Quote from Zephir_AWT

Papp engine used gases, i.e. no cavitation - your understanding is still weak...

See

https://chem.libretexts.org/Te…Group_18_(The_Noble_Gases)

Papp used chlorine in his gas mix. Only highly electronegative elements can form stable compounds with the noble gases. Xenon has a high affinity for both fluorine and chlorine, which form stable compounds that contain xenon in even oxidation states up to +8.

I don't know is this noble gas compounds are liquids or not.

Quote from Alan Smith

Lubricant or coolant? Inside or outside the cylinder wall?

Since the cylinder wall is a solid, the cylinder is going to vibrate equally on its interior and exterior. If there is a material that will form cavitation bubbles on the inside of the cylinder, then those materials will cavitate.

Quote from Zeus46

...Although cavitation inside the cylinder only happens in the gap between the piston and cylinder, not on the swept surface above.

http://www.dieselhub.com/maintenance/cavitation.html

Your statement is contrary to the observation that the COOLANT of and engine suffers from the effects of cavitation

"combustion events forcing the cylinder wall to rapidly expand and contract create vacuum bubbles in the engine coolant in the vicinity of the cylinder wall. "

The engine coolant is not ever near or at the "gap between the piston and cylinder".

If water is inside the cylinder, it will cavitate due to the "combustion events" that produce rapid fluctuation in the cylinder wall and the surrounding engine structure. In the Papp engine, the detonation of hydrocarbon does not occur bit a more more powerful and rapid nuclear detonation process involving plasma expanding on a shock wave near the speed of light. The knocking produced by nuclear based plasma destination must be huge,

In the Papp engine, there are three separate plasma ignition events that produce shock waves impacting on the structure of the engine (i.e. the crankshaft and connecting rod and the iron cylinder containment connecting structure ) which is transferred to the cylinder walls of the paired cylinder.

If the cavitation posit is correct, care must be taken to transmit the shock waves from the firing piston were multiple plasma detonations are occurring to the compressing mated cylinder.

The Papp engine MUST always be built with the two connected cylinders in a mated reciprocal firing order where vibrations from the plasma destinations can travel through the structure of the engine so that cavitation can be produced in the mated cylinder where gas compression is underway.

Quote from Sherlock Holmes

Are you talking about his sort-of car engine or about the engine that propelled the submarine he constructed in his garage across the Atlantic at 160 MPH and which sunk right at the spot where he could swim to the shore?

I am talking about the engine that he patented.

Quote from Sherlock Holmes

Axil, don't you think that the submarine engine is closer to LENR?

Do you have any fact based documentation on that subject?

The Russians and Chinese have this type of cavitation driven torpedoes on their subs right now. Join your associate national spy agency, become a spy, and get the lowdown on these things if you are so interested in them. One bad thing about becoming a spy though, you have to keep your mouth shut.