Hydrosonic Pump

[mikestocks2006]

Hello idnick
This is what I thought Griggs meant, as well the yusmar seems to use the same principal called sonoluminescence.
In my bad picture, as the rotor turns a hole in the rotor approaches an inward "bump"(2) this compresses the fluid in the hole as designated by red dots, the hole then moves past the bump and decompresses as designated by blue dots(1). The magic seems to appear when the frequency of compression/decompression (RPM) is very high, that is why griggs used hundreds of holes, to lower the rotor RPM to managable levels.
The effect they say is based on cavitation or what we know as water hammer, only griggs found it more pronounced at ultrasonic frequencies near 24,000 Hz I believe, google ultrasonic frequencies to get the right number. If you take the number of holes on the circumference of the rotor in one line times RPM divided by 60 you get the number of compressions per second/per hole.Then times this by the number of bumps on the casing for total compressions per second, this is compression cycles/sec equivalent to frequency cycles per second, so 24,000 compressions/second is huge!
This is why I though the yusmar was much easier to build, It can be done your way though I think, and your a much better man than me if you can do it, best regards and please keep us updated.

Yes!. Nice. The more ridges on the case, and the more holes on the drum (per circumference) the higher the frequency. It basically creates a high pressure/vacuum impulse oscillation as each cavity passes by the ridge.
Mentioning of Sonoluminescence. Some interesting refs on frequencies.
http://www.overunity.com/index.php/topic,1095.0.html

Good work folks.

[idnick]

Hi all:
I found this kinda interesting also. Check out link below. Take note that there's no ridges inside this clear cylinder.
   NASA engineers solved a design problem with Hydro Dynamics' rotor for use in the Hydrosonic Pump.TM The holes in the rotor produce microscopic bubbles, preventing the buildup of impurities (scale).
http://peswiki.com/index.php/Directory:Cavitation_Heaters
Dave

[kukulcangod]

Incredible job ........I wanted to make one for experimenting but the information in here is saving all of that thank you for sharing your findings
Now let me share and suggest something as well......How about pairing this system with a tesla rotor?? and an efficient generator?

Can someone help me out to make the calculations to make such system a reality?
if I'm right a small apt needs about 30kilowatts to be independent forgive me if I'm wrong I'm not good at conversions,
what size such system will need to be? 
I think we can make a closed system ........will it be possible??
It seems that the tesla turbine can be simple enough to build and small enough just take a look at this fascinating website a lot of work has been put in it :

http://phoenixnavigation.com/ptbc/home.htm

Please don't forget about me let me know of the calcualtions needed

[buzneg]

The average household uses about 5kW per hour

[comcyber]

... and here it is: the cavition heater WITHOUT electricity,
normally for whirlpool wholesale only ... so where's the problem ?



http://cgi.ebay.com/Thermowave-Water-Heater-for-Whirlpool_W0QQitemZ280023792550QQcmdZViewItem

Specifications at:

http://www.remodelyourbath.com/generalinfo.html

Regards,

Com