Author Topic: Rotary Pulse Voltage Frequency Generator Assembly  (Read 148406 times)

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #104 on: October 20, 2009, 17:50:50 pm »
Older heavy duty Ford alternators do look like Stans, but still not the same.. i couldn't find a alternator in the whole world that looked EXCACTLY like Stans until i found out that ford had a special aircraft version.

This is only my guesswork, but i feel i am correct. You can get a 12-15 Volt to a small aircraft, but i don't think Stan choosed an aircraft alternator type of 12v when you could get 12-15 Volts everywhere. He was a high volt guy...So he used 24-28 V. This is one more bite to the puzzle. I got more bits here...but i miss one or two and i am working on it.

http://images.google.no/imgres?imgurl=http://www.kellyaerospace.com/images/alternator2.jpg&imgrefurl=http://www.kellyaerospace.com/alternators.html&usg=__xtksKYsWWINHl_k-ow85EryY0x8=&h=200&w=300&sz=13&hl=no&start=27&um=1&tbnid=NRm3fWkbFeP_nM:&tbnh=77&tbnw=116&prev=/images%3Fq%3Dpma%2Balternator%26start%3D18%26ndsp%3D18%26um%3D1%26hl%3Dno%26rlz%3D1T4GGLJ_noNO267NO267%26sa%3DN

http://www.aircraftaccessoriesofok.com/capabilities_c38498.html


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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #105 on: October 20, 2009, 22:23:24 pm »
do you think stand could have rewound the primary rotor winding?

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #106 on: October 20, 2009, 23:45:05 pm »

Outlaw,

I don`t think he changed the windings.

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #107 on: October 20, 2009, 23:52:20 pm »

Outlaw,

I don`t think he changed the windings.

He probably didnt change nothing @ all from the alternator he used , because its expensive and a load of trouble .

Who ever said it was rewound ?

He probably just added his  circuit and calculated everything on a factory alternator , however its made , it needs to be calculated so w/e ...

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #108 on: October 21, 2009, 05:12:34 am »
I think you are right about that aircraft alternator, I'll have to look into it more, It is similar to the truck alternator for sure, I am trying to consider what the differences would be.

I know stan Stan says in the first dune buggy video that he applies 5 volts and 2 amps to the alternator, that means the rotor has a resistance of 2.5 Ohms, and as far as an alternator goes for being a "12 volt" or "15 volt" or "24 volt" alternator, all I can imagine with my current understanding is that this would be the way the rotor is wound, so yes, maybe you can rewind the rotor to have a different resistance and then have different input voltage/current relationship.

I do know that Stan always seems to go up to about "5 volts" on the variac, and this is even on the schematic posted in the first post, so if he has a 12 volt or 15 volt alternator, I am not sure what the difference would be. See, the rotors magnetic field depends ONLY on the current flowing, not the voltage, so when he is sending 2 amps to the rotor,I think  it gives the same magnetic field as if he was sending 2 amps at 5 volts or 2 amps at 20 volts, this may not be exactly correct, because the electrons will actually be "drifting" faster down the wire, but for designing sake, i think this is the important part.

I may go to the airport and ask some engineers about aircraft alternators, I used to work at the airport but its a small airport so I don't think i'd be lucky enough to pick up a similar ford aircraft alternator.

Thanks for pointing that picture and link out!

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #109 on: October 21, 2009, 06:05:30 am »
Just my opinion.

I think the aircraft alternator will have higher quality bearing rating and essentially be the same beast as the Ford truck alternator.
Don't know about 12 or 24 volt.
But I remember I had a bunch of aircraft panel pilot lights and am pretty sure these were all 6.3v.

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #110 on: October 21, 2009, 18:47:52 pm »

It is okay, to help people up from the field (windings) sometimes.. :D

If Stan started in 1975 and had his first patent allready i 1980 or 1981 on the first rotary vic water fuel cell system.... He could had figured this out maybe a couple years before he took patent on it!

Piece of cake?.. :)
 

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Re: Rotary Pulse Voltage Frequency Generator Assembly
« Reply #111 on: October 21, 2009, 20:58:10 pm »

Btw... My alternator is a 24V Leece Neville, often used in boats, and i have a scary speed of 6000 rpm on it.
You don`t need to find an plane man...lol