Controller circuit for Hilden Brandt motor needed..

[JackH]

Hello Carl,

Well I'm doing OK now.    How about you.   I am building a new motor, with 2"x 2" magnets, with six valves, two firing at the same time, a radiol motor.   This motor should run on 50 vdc at 2 amps.   I think it will probably put out at least 2 hp.

Hey Steven,

Can you post the results on the message board.   I am running on the phone line and it takes 3 hours to download it.

Thanks

Later,,,,,,JackH

[tbird]

Hi Steven,

in the video you wrote, "....and so lower the amp draw just like in normal electric motor"  i think this is not true.  normally when you load a motor, the amps go up, like yours did when you applied the load.

the neat thing about your motor, when you add the magnets, amps go down to about half while still carrying the same load.  granted the rpm went down to 748.8rpm (the last frame showed the tach reading at 752.2rpm, so pretty much the same rpm as before magnets, 750.8-754.3rpm), but you didn't lose 50% of rpm.

this says to me you were doing the same work for half the power.  REALLY NEAT!!!

i would say next thing to do is find out how much work that really is.

keep up the GREAT work!!

tom

[Nali2001]

Hi Jack,
Well I rather would not write a whole story what a video analysis can show in a few minutes.
I made for you a much smaller version which might be do able for you.

Here it is:
http://www.krystyna.nl/Machine/MotorValveTestsSmall.wmv
Yes it is still 15mb... and will probably take about 55minutes to download.
But maybe you can put it on in the evening or something... I also made a 8mb version but then the invideo text becomes totally unreadable.

Hope it is not that much a problem....
Steven

[Nali2001]

Steven, it looks like you put a lot of work into that test, thanks.

I have another general question, and I am not an expert in things electrical, but this is what I am having trouble grasping.

It seems like the whole purpose of the motor is to take electricity, convert it to mechanical energy, and then convert the mechanical energy back to electricity.  That seems wasteful.  If there is something to be gained from redirecting the magnetic flux like that, can't there be a way to just harness that surplus without having to convert the electrical to mechanical and then back again?

Hi and thanks,
Well it is wasteful if you look at it that way, but if you are satisfied with the mechanical power, like for a car then it is just what you need.
Well you are talking about a solid state meg-alike system. Well what can I say, it CAN probably be done but I never found a workable solution to that one.

[Nali2001]

Hi do you think problem is the switching frequency? since in previous video in "steady state" the valve works as intented

Yes it must have something to do with the many switching times per second. As well as many other things. But that is still not clear at this point. It really is not all that simple when many things happen fast