The Lockridge device

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Slider2732

Re: The Lockridge device « Reply #25 on: 2012-03-08, 22:02:24 »

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I *think* i'm understanding those various fields and magnetics interactions.
It's why the thoughts turned to electromagnetics rather than permanent magnets, as you stated earlier on. The way a permanent magnet will hold a permanent force is something both beneficial and yet also very very bad for a motor trying to get into decent COP ratings. At some speed of rotation and switch point, the ever present magnetic flux lines become the limiter..
The push of the collapsing coil should be used in preference to the standard motive charge of a powered coil. See, that has always confused me...if the returning spike from a field collapse is apparently stronger than the force which created it, then why do we not power motors with the collapsing force rather than the creating force ? Turn it all around 180 degrees.
That type of thinking is part of my interest in your experiments

I hope you don't mind the inclusion of my offshoot experiments.
I wished to merely get this rotor spinning. It's not my usual type of motor, normally brushless outrunners or small Mabuchi cassette motors. But, having developed several systems in the past, i'm always game for motor experiments.
2 example short videos and intending to show interest.
< 1gram fingernail sized brushless: http://vimeo.com/12189745
Twin propellers, wireless, magnetics based: http://vimeo.com/12068730

So a test system is now in place, which I hope can further an open cased approach to field control and various waveshape runnings.
Pic is below and the motor runs, albeit much like a homopolar at the moment. The original brushes are shown, to the right of the mirror. They kept catching and so simple wire pieces were used. It spun up true and didn't show procession, which was what I was looking for. The top bearing is merely hotglued for the first tests.
Next, is to build up external electromagnet coils and rewind the rotor with a finer gauge. Looking at it closer, there are only about 8 turns per section and it's more like 20 gauge !

The Lockridge device

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ʎɐqǝ from pɹɐoqʎǝʞ a ʎnq ɹǝʌǝu

mbrownn

Re: The Lockridge device « Reply #26 on: 2012-03-22, 01:59:19 »

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This is a conversation I am having with a guy on Imhoteps forum

Quote from: hi water

Thanks for the PM. None of the armatures i have are wave wound. Was hoping there wouild be one.

You will have to do a rewind, but don't be put off .

Quote from: hi water

You are taiking about the geometry of the poles. is that the feild coils. In the a motor generator (motor-gen coils). I was thinking earlier this year about the degrees of difference from true north and magnetic north. But doesnt seem like much room inside the case to get the coils in the right place. You will have to explain your thinking on this to me a little more if you want.

Yes, as you are aware the best motoring position will not be the best generating position so it is just a matter of tuning when you have the thing running. I do not know the correct angles to set the motor and generator coils at but I am sure that the info will be on the net somewhere.

Quote from: hi water

My armatures have 14 slots with 28 commutator bars.

Excelent.

Quote from: hi water

Yes i believe both the motor and gen have to be in the same case. But you can motorise with only one coil

Yes I am working on that with the universal motors I have as these motors only have two poles.

Quote from: hi water

been working on those bucking coils as you call them, getting input power down.

This may not be necessary but could help in getting the maximum power out.

Quote from: hi water

Money is the big hold up. so i keep working on with what i have on hand. How do i get you some money so you can work on this with out having to take all your work money to experiment on this. I believe if this was made to self sustain, the technology should be given out to third world countries to be used . Not to the governments, but to the people. I dont think it would ever be allowed to be patented here in the US. I dont want to do that anyway thats your baby.

Yes that is my problem. and your sentiment is exactly the same as mine. Steve Jones has helped me by sending some money although I am reluctant to accept such generosity. With the money he sent I was able to purchase a variac and a 2Kw motor and test one of my earlier theories. Yes I got an increase of power in the motor but not in mechanical or electrical output, all the extra power was converted to heat. :cry: I was so upset that I could not produce that I am even more reluctant to accept further donations. I am still working with Steve Jones and if you help me I am sure he would accept you to his private group. His and my goals are exactly as you listed above.

Quote from: hi water

Your saying it much more than a motor. Please explain your thoughts on this. I have to get out and get to work . will continue this later.

This is the key to the Lockridge device. When I tell you you will say why didn't I see it before?

It is a motor and a generator but with only one set of iron losses so by this reason alone it is more efficient than separate motors and generators. Now what is the third action? Think about it. We are pulsing an input coil with a second output coil on the same iron frame. ITS A TRANSFORMER too and because there are no iron losses because the core has been saturated by the motor action, it is efficient. We have three devices on the same core!!!! and only one set of iron losses. Its as simple as that.

Of course we will have to tune it so that all the actions are simultaneous and this is where the geometry comes in. Of course the gain could be converted to heat as before but I don't think so in this case because there is not a big gain in voltage.

Now lets do some maths

A normal universal motor is 35% efficient on AC, so with an input of 100w, we get 35w of mechanical power. We will also get a transformer action of somewhere above 35w because there is no friction loss or additional iron loss. This will give us around 70+ watts as a minimum. The reactive output on the inductive kickback will be less than this but lets say it is 35% of 35w or 12.25w, now we have 82.25 watts. We can expect as a minimum to get 35% of 35 + 12.25w as a generated output or 16.5375w. this will give us a total of 98.7875 watts electrical output or almost enough to run our motor.

It gets better. In the above calculation I have counted the iron loss three times but we don't have that. how much we will get depends upon how well we build it, but starting with a generator with a higher efficiency than 35% can only make it better. Add to this the fact that universal motors are more efficient on DC.

PhysicsProf	Re: The Lockridge device « Reply #27 on: 2012-03-22, 04:19:51 »
Group: Professor Hero Member Posts: 3215	Thanks, Mike. Hi water certainly seems to be a good man! Pls let us know if you think he would indeed contribute to this group; sounds like it. Wish I had more funds to support such; I do have some... let me know. (perhaps by email)

PhysicsProf	Re: The Lockridge device « Reply #28 on: 2012-03-22, 15:26:57 »
Group: Professor Hero Member Posts: 3215	Mike: Quote This is a conversation I am having with a guy on Imhoteps forum Which forum is this? thx.

mbrownn

Re: The Lockridge device « Reply #29 on: 2012-03-23, 10:34:49 »

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Its the first forum I got involved with when learning about JB's circuits. I am a moderator on that site now. Hiwater has been using that forum for a year now, he seems to be particularly interested in the Lockridge device and has a number of Delco Remy generators. As he already has some similar generators to the original device It should be a relatively simple task to modify one to the Lockridge circuit.

http://imhotepslabs.freeforums.org/

In these two threads below you can see how my ideas have evolved over time into what I believe now but due to the lack of traffic I started using the energetic forum. I accept that my original thoughts were not how the lockridge device works although some of it could be incorporated to improve it. I think it is a learning curve

http://imhotepslabs.freeforums.org/was-the-lockridge-device-the-original-parallel-path-motor-t234.html

http://imhotepslabs.freeforums.org/the-lockridge-device-t204.html

I don't know Hiwater personally but he does seem focused on the lockridge device.

mbrownn

Re: The Lockridge device « Reply #30 on: 2012-03-23, 15:34:48 »

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Posts: 246

I have received a reply from Hiwater

"Mike, I dont know Steve, Is he involved in the F.E. community. I believe I would be interested in joining you guys in the Research and Developement of this technology. I have lots of generators to work with . Dont know much about the real electric circuits boards and such. I have had a lot of experience working on these generators. If you think i would be able to help then i would be interested."

PhysicsProf

Re: The Lockridge device « Reply #31 on: 2012-03-23, 18:59:37 »

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Mike,

Quote from: mbrownn on 2012-03-23, 15:34:48

I have received a reply from Hiwater

"Mike, I dont know Steve, Is he involved in the F.E. community. I believe I would be interested in joining you guys in the Research and Developement of this technology. I have lots of generators to work with . Dont know much about the real electric circuits boards and such. I have had a lot of experience working on these generators. If you think i would be able to help then i would be interested."

Guess we'll have to get acquainted

pls invite him to take a look at my web page:
http://www.physics.byu.edu/research/energy/

Sure, with your recommendation Mike, I would gladly welcome hiwater.
Are there any objections? If not, Chet or I just need his email address and we can get him signed in. My request would be that he not be anonymous; it's good to know who we are working with.

I'm finally settled to begin some experiments on Davey devices. First to see if the controls behave the same here near sea level, as they do at about 5,800 feet altitude where I live.

mbrownn

Re: The Lockridge device « Reply #32 on: 2012-03-28, 03:52:10 »

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Posts: 246

Update on my discussions with Hiwater.

Quote from: hiwater

Hi Mbrownn. did you ever get a chance to try out your armature. Was wondering how it worked for you. I pulled all the wires off one I had here today. Going to try to rewind one my self.

Did you run wire on half of the slots for each commutator segment or how did you do that. Was also wondering if skipping every other comm bar would be the way to do it. I asume the wire is all wound in one direction. This is pretty new to me but I will give it a try. Thanks curt.

Not yet, I haven't found any good brushes yet, its very frustrating.

My rotor has half the number of slots as segments on the commutator so I filled all the slots. It is 2 pole so it is a simple task, is yours 4 pole? Also how wide are your keepers on the field windings? I ask so that we can make a good job of it.

On a 2 pole you start at one commutator segment, go to the slot at 90 degrees and then wind an equal number of turns either side of the shaft an then go to the segment opposite our start point.

On a four pole it is more complicated. again start at one segment and Finnish at the opposite segment but now we have to incorporate four coils. It would be easier if I had a pic of you rotor and the number of slots etc so that I could work out the configuration for you.

You will need one empty segment between each live segment.

Did you look up Steve Jones?

So far there has been no objections to you joining our private group. Steve asked me for your email address so that he can give you access to the group, alternatively you can email him on http://www.physics.byu.edu/feedback.aspx?personID=36

Quote from: hiwater

My motor is a 2 pole, but can be made to a 4 pole, that would be 2 for motor- 2 for gen. The feild pole shoes are 2.75 inches. They cover 5 srmature slots with about 1/8 inch overlap on each side.
Question. If its a 2 pole will there be windings on the armature to charge the gen feild coil windings during the charge cycle. Iv tried with 4 feild coils in last winter, but didnt get much out of them. But i didnt know as much then as I do now. Iv got one all set up with 4 brushes and 4 feild coils in but havent tried it yet been working on the others so I can transfer my knowledge to that set up when comes time,
With your guidance ill give it a try. I dont know how to get you a picture. ill talk to my daughter shes up ao that stuff. No havent taiked to Steve Yet.

Slot number is 14- comm bars 28. got to run phone ringing off the wall

14 is not divisible by 4 so we would not have an ideal setup for 4 pole, best do a 2 pole first. The advantage to 2 pole is no slots in the case will be required. The 2 pole setup has quite a few problems too, the first of which is the poles are too wide in my opinion. I will spend a little time thinking about how to improve my first rotor and get back to you on how to wind it.

mbrownn

Re: The Lockridge device « Reply #33 on: 2012-03-28, 04:04:37 »

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Posts: 246

Quote from: hiwater

Got really busy here today. didnt get time to do any winding. I forgot to ask if the other end of the wire is (from the start position) cut off and then soldered to the commutator bar. So on the next comm bar we start with a new wire instead of all one wire length. Hope that explains what i mneed to know. Thanks hiwater.

Yes, that is how you do it but you miss a commutator segment before winding the next coil. I am pondering whether it will be worth narrowing your rotor fields to improve the performance as wide fields will require a very high speed to get significant generation. More coils and narrow fields is my gut feeling on this.

PhysicsProf	Re: The Lockridge device « Reply #34 on: 2012-03-28, 13:42:55 »
Group: Professor Hero Member Posts: 3215	Michael, the best email to reach me at would be EMdevice12@yahoo.com Thanks! Steve

mbrownn

Re: The Lockridge device « Reply #35 on: 2012-03-29, 11:26:21 »

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Thanks I will pass on the email to him.

Quote from: hiwater

I can narrow up those feild pole shoes To any amount that we need. the problem is that we might need to wind another feild coil to fit what we need in the space. The motor coil that I have in their now is one from a 12 volt delco starter. Just one , because it will motorise on just one, with a regular feild coil for the charge coil. The funny thing is off the armature on one half i get about 10 volts and on the other side I get close to 15 volts dc. The feild pole in tha configuration only takes up 3 armature slots. The bigger the motor feild coil the more amperage it takes to motorise. That is the ribbon type copper coil not magnet wire.

That is interesting, these are the type of tests we need to do. How much load do you have when you get these voltages, ie how many amps draw? Are these coils at 90 degrees to the power coil or 180?

PhysicsProf	Re: The Lockridge device « Reply #36 on: 2012-03-29, 16:16:56 »
Group: Professor Hero Member Posts: 3215	I'm certainly not expert regarding Lockridge devices, but I wonder if it would be possible to achieve ou results with smaller motors/generators (in this case). The advantage would be lower cost to get to a working model and test (I think).

mbrownn

Re: The Lockridge device « Reply #37 on: 2012-03-29, 18:40:06 »

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Quote from: PhysicsProf on 2012-03-29, 16:16:56

I'm certainly not expert regarding Lockridge devices, but I wonder if it would be possible to achieve ou results with smaller motors/generators (in this case). The advantage would be lower cost to get to a working model and test (I think).

It may be, At the moment I just need to get some results so that I can work out what things have the effects I want.

The device really is very simple but we need to make sure that the generation is occurring at the same time as the motoring and transformer action. This will mean that the generator coils are unlikely to be at 180 or 90 degrees to the motor stator coils. We will also need to get enough sweep of the rotor magnetism over the generator coil, so I expect that the generator coils will be narrower than the motor coils.

Delco Remy starter generators that have been used on tractors seem to be a good candidate and can be found second hand for less than 100USD. I think this is what Hiwater has several of.

http://motors.shop.ebay.com/Parts-Accessories-/6028/i.html?_trkparms=65%253A12%257C39%253A1%257C72%253A6208&rt=nc&_nkw=delco+remy+starter+generator&_sticky=1&_trksid=p4506.c0.m245&_sop=3&_sc=1

mbrownn

Re: The Lockridge device « Reply #38 on: 2012-03-29, 18:49:08 »

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Posts: 246

Quote from: hiwater

The charge feild coil is only one coil. Its is 180 from the motor coil. The other generator feild coils are at 90 to the motor coils, but I havent run that one yet. First tests were with no load. So i put a heater motor in the circuit. Across the battery alone .42-.43 amps. Off the generator auxillary brush .3o-.42. gen does slow down abit. with the heater motor on the charge coil the pos voltage to the generator inout drops down .10 amp on the input draw. heater motor draws .16 amps to run.

This motor I can move all 3 brushes. Seems like the negative brush cant be moved too much off its original position, but the positive brush can be moved quite a little before it affects motor rpm. voltage is effected on the auxillary brush usually drops. i did have a position once i got 45-50 volts ac off it. bit cant get it back. Will keep trying. The drag on the 3rd brush does slow the motor down some. this brush is standard width. So am going to narrow it up.
From testing I can get some acceleration with 12volt bulbsoff the feild coils, but from right off the armature there is a slow down, so theres 2 areas that have to be worked on.

Ill contact steve. Thanks.

mbrownn

Re: The Lockridge device « Reply #39 on: 2012-03-30, 03:56:32 »

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Posts: 246

Quote from: hiwater

Yes its a heater blower motor. I wanted to see what the draw on the generator would do It actually went down by .10 th of an amp. The heater motor connected across the battery only draws .16 of an amp. Gen does slow down some depending on where you connect to.
If I put another coil in series about equal to the windings on the heater armature the generator rpm doesnt drop very much. So I learned that all the windingd should be equal to get the best voltage transfer.
One other thing i learned to day is that the auxillary brush has to be wider than one segment to pick uo more voltage also the right pressure against the armature. Other wise your voltage is lower. The motor run brushes are narrowed down to one slot each.
No I dont have skype.

I wasn't expecting a drop in current so that is very interesting, I need to think about that. As long as the load impedance is high we wont see a big drop in rpms but if you load your blower motor you will see the revs drop. The equal windings suggest that we may need impedance matching hence the trifilar coil.

A wider collector brush is the same as having a narrower generator coil as I suggested before. It may also be the case that wider generator coils can compensate to some extent for poor geometry but we will loose efficiency in the long run.

mbrownn

Re: The Lockridge device « Reply #40 on: 2012-04-16, 00:48:36 »

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Posts: 246

Quote from: hiwater

How are you comimg on your armature, did you find brushes so you could try it out. Last winter i ground out every other comm slot on a stock generator armature and filled in withe JB weld . Then sanded it off evenly to match the other sections. It turned but not too fast lots of arcing at the brushes. So I think that maybe we need more commutator sections under the positive brush to get the speed we need. Probably only need one or two section on the commutator to pulse the armature. What are your thoughts. Thanks hiwater.

I am not in a position to do much at the moment, living on a third world wage does not help, although I do look at it every day and I am working out the next steps to improve it. Once we have this thing running we can play with the geometry.

We need double the number of commutator segments so that we have one blank one between every coil, remember that the armature has to be wave wound or it won't work. The recovery brushes will all but eliminate the arcing.

Quote from: hiwater

This time of the year, I uaually get pretty busy with other things. I did get a chance to work on the lockridge a little one rainy day.

I wonder if the armature should be wound with a motor run winding, just enough wire so it dont over heat and the rest of the winding with a finer wire to get the voltage up. Im still getting 30 volts off the positive side of the armature and about 10 volts on the opposite side of the armature. thats why i was thinking of more wire on the gen side of the armature to get the voltage up.

Trying to figure out how to keep the n and s pole seperated to remove lenz law. So we have all acceleration and make that work for us.

No i havent joined the group, never got an email back from Steve. I never got a notification that mine never went through. So maybe he forgot about it. Yes I would like to join the group. Just have to know how to get in to the site. Thanks hiwater.

The armature is used for motoring and as the exciter for the generator, the actual generation is done in the field coils. Don't worry about lenz, we have enough to overcome it but maybe we could introduce something when we have it running.

We will need to get the right amount of wire on on the generating field coils. I am only guessing here but this is what I think, the voltage of the motor is shared across two field coils and the armature, the generated voltage is only across the field coils. this will mean we will have to increase the number of turns on the field coils by in excess of 30%.

There will be a difference between the voltage generated by the transformer action and the generator which may cause some other interaction but we don't know until it is tested.

Try sending steve another message on EMdevice12@yahoo.com

mbrownn

Re: The Lockridge device « Reply #41 on: 2012-04-17, 02:11:17 »

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Posts: 246

Quote from: hiwater

It snowed last night. So it looks like a shop day . The temp is 28 degrees. Ill keep in mind what we have discussed on the armature. Been holding off rewinding the armature. Never done that before. so guess its time to get my feet wet. Done a lot of other things to those generators. im running out of parts to use. so will have to get some more cores to work with.
My email address is ( curtisr@gvtel.com ) Thanks hiwater.

Before you rewind we need to work out the most likely configuration, that is how narrow to make the armature poles, although it may be just a simple 4 pole wave wind.

mbrownn

Re: The Lockridge device « Reply #42 on: 2012-04-18, 18:10:54 »

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Posts: 246

Welcome on board Hiwater

Before I go any further I want to draw your attention to something. I strongly believe Tesla had an overunity motor generator, it is shown in some of his patents although I have never seen his actual patent even if it does exist. This is the device in the center of the image http://tesla.hamradioindia.com/assets/radio.gif

It could be that it is a DC to AC converter although both the slip rings and the commutator are both shown to be outputs.

There has been a device patented in 1975 which is probably the same device http://www.rexresearch.com/alxandr/3913004.pdf

If you read this patent carefully it does give exactly how I believe the Lockridge device works even though the lockridge does not have magnets and generates in two of the field coils.

This patent was handed to me during a discussion with another researcher who has been banned from some other forums and after I described to him how the Lockridge must work.

If you want to purchase one of these devices I have seen them on ebay http://www.ebay.com/sch/i.html?_nkw=dynamotor I wish I could afford one.

When tested, people have said that it is not overunity, but I believe I know why. These devices have too high an output voltage and the winding resistance is too high. There may be a change in geometry too but I cannot tell until I get my hands on one. You can be sure that the manufacturers of these devices either did not know how to make them overunity or deliberately manufactured them so that they would not be overunity.

Now back to the lockridge device. Back in the days of WWII these devices were not available so whoever invented the lockridge device took a Bosch dynamo with a wave wound rotor and cut every other winding on the rotor. he then adjusted the brushes so that the motor pulsed using only two brushes mounted close but not exactly 180 degrees apart. The other two brushes were then mounted so that they made contact just as the power brushes disconnected from the segments. This way we recover the reactive power in the pulse. the motor field windings are mounted at 180 degrees apart in the appropriate motoring position. The generator field windings will not be set at 90 degrees to the motor field windings but at an angle that would give the highest generation effect. Unless someone knows what the difference between the best motoring position and best generating position is, we will have to find out by experiment. These generator windings will have to be of sufficient turns so as to give sufficient voltage under load to run the motor. The slots in the case are to separate the poles of the magnetic circuit so that the transformer effect is not cancelled.

Now read everything I have given you very carefully, including the patent and lets get this thing built. What you do not understand, please ask me about, even though I am not in a position to do it myself at this time I will do my best to ensure you succeed.

PS if anyone knows where I can get a job in the hydraulics field I would appreciate it.

Broke and living in the Philippines

Mike.

Hiwater

Re: The Lockridge device « Reply #43 on: 2012-04-19, 04:53:36 »

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Posts: 137

Boy , Lots to digest in your last post. I have looked at the alexander patent too, before. I found one already made to order. But spendy. There manufactured by Fabco Power. They have brushes and slip rings. Input is 12 volta and output is 12o volts ac. They do have feild coils , I have received e-mails from terry Indicating that.

The dynamotors I do have . Two smaller ones and 3 others. Three of then have the end open so I can see in. These are commutators on each end. The other two I will open up tomorrow to see what they have inside. I believe your right about the resistance too high. one of them I have is 570 volts out put. i was going to try them on my water fuel cell, but havent yet. They are some nice little gems anyhow. They are built very well.

Ill go through the info that you posted a few more times to get the picture of what you are telling me. Question ( reactive power) is this considered Ac then. My fuel cell is set up that way. I have .24 amp in to the alternator With about 30-40 volts out. But I have 9-10 amps recirculating through the cell. just keep going round and round in a circle, through the capacitors chokes and cell. Nothing get hot, just kind of luke warm. Just trying to make a comparison.

I can put slots in the case to be able to move the generator windings to the best place. Next logical step is to tackle the armature. Will let you know when Im ready . Helping move my parents for the next few days and clean up the old place. thanks for the good post.

PhysicsProf

Re: The Lockridge device « Reply #44 on: 2012-04-19, 05:42:05 »

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Welcome Hiwater! (As was discussed a while back; recommended strongly by mbrownn.)

Quote from: Hiwater on 2012-04-19, 04:53:36

Boy , Lots to digest in your last post. I have looked at the alexander patent too, before. I found one already made to order. But spendy. There manufactured by Fabco Power. They have brushes and slip rings. Input is 12 volta and output is 12o volts ac. [snip]

I can put slots in the case to be able to move the generator windings to the best place. Next logical step is to tackle the armature. Will let you know when Im ready . Helping move my parents for the next few days and clean up the old place. thanks for the good post.

I'm interested in this Fabco device you mention -- is the output Frequency adjustable? or, if fixed, how is it fixed? link?

I understand about "cleaning up the old place"== that's basically what I'm doing out here in Mo this week; helping clean up an old place. I look forward to getting back to my home lab in just under a week!

mbrownn

Re: The Lockridge device « Reply #45 on: 2012-04-19, 12:32:34 »

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Quote from: Hiwater on 2012-04-19, 04:53:36

Boy , Lots to digest in your last post. I have looked at the alexander patent too, before. I found one already made to order. But spendy. There manufactured by Fabco Power. They have brushes and slip rings. Input is 12 volta and output is 12o volts ac. They do have feild coils , I have received e-mails from terry Indicating that.

The dynamotors I do have . Two smaller ones and 3 others. Three of then have the end open so I can see in. These are commutators on each end. The other two I will open up tomorrow to see what they have inside. I believe your right about the resistance too high. one of them I have is 570 volts out put. i was going to try them on my water fuel cell, but havent yet. They are some nice little gems anyhow. They are built very well.

Ill go through the info that you posted a few more times to get the picture of what you are telling me. Question ( reactive power) is this considered Ac then. My fuel cell is set up that way. I have .24 amp in to the alternator With about 30-40 volts out. But I have 9-10 amps recirculating through the cell. just keep going round and round in a circle, through the capacitors chokes and cell. Nothing get hot, just kind of luke warm. Just trying to make a comparison.

I can put slots in the case to be able to move the generator windings to the best place. Next logical step is to tackle the armature. Will let you know when Im ready . Helping move my parents for the next few days and clean up the old place. thanks for the good post.

Yes I am spilling the beans a bit because I want to get this info out. There may be one or two things that need to be sorted but I know all the basics of it and between us we can get this thing running and iron out the problems as we find them.

There are a few Dynamotors out there from different manufacturers and as I have only seen them on the internet, I cannot be precise about what to do with them other than they seem to have too high an output voltage when compared to the input, this will mean higher resistance. When you look at the size of the device this also tells you that the coils must be wound with fine wire to get the voltage using such small coils again suggesting a high resistance. My experiments and computer simulations tell me the resistance must be low so a complete rewind may be required with these devices.

If the device has two commutators as opposed to a commutator and a pair of slip rings it will be much closer to the Lockridge in its operation. It has been suggested to me that the Lockridge had an armature from a dynamotor, I do not know if this was the case or even if dynamotors were available in the 40s. I am assuming they were not.

On the reactive power, the voltage is the difference between the high and the low reading, weather it is considered AC or pulsed DC depends upon your base voltage. For example if you put a triangular wave into a transformer with one of the wires grounded it is DC, If it has no ground then the signal is in effect AC. On the simulations I have been able to produce a DC waveform or AC waveform.

If you are selecting a Dynamotor with the intention of making it overunity you need to find one with very low resistance coils and to feed the output directly to the input you would need an output voltage of not much more than the input. Of course transformers could be used but then you are introducing another loss.

I will wait for your post on the armature, I will need the number of slots and the number of segments to work out your windings.

Hiwater

Re: The Lockridge device « Reply #46 on: 2012-04-20, 05:57:18 »

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Posts: 137

Mbrownn. I looked at those other dynamotors tonight. The have commutators in also. The high voltage end must have 50-75 commutator bars on and real narrow with real wide brushes. The 12 or 24 volt end has 12 bars on the one i counted. But the brushes take up two bar sections. There up to speed right now no lag in rpm. Not like a regular motor. There is only 2 feild coils in them and dont overlap much on the outside of the pole itself. I believe its like you say lots of turns with fine wire. What im going to find out is how they are motoring and generating at the same time. The armatures wire where they connect to the bars are all covered over all the way back to the armature slots, so cant see anything without ruining them. they ars just to play with for now.
I guess the best armature would be to use the stock GM armature. These are the ones I have been working with. Thay have 14 slots and 28 bar segments. Will probably have to have 2 motor run coils and two generator coils. I believe theres more speed and probably more voltage coming off the collapse with 2 coils. Some of these starter generators when I just cut the windings on every other segment, and soldered together i had a ball of fire off the bruhes close to the size of a dime. Those had wider commutator segments 4 wires on 1 bar.
So ther is a lot of voltage to be harvested comming back off that armature.
The 14 slots and 28 segments is what we want to work with on the armature. If you need anything else, let me know.

mbrownn

Re: The Lockridge device « Reply #47 on: 2012-04-20, 14:16:14 »

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Posts: 246

As a suspected the dynamotors will need a complete rewind and new slim brushes, probably better to perfect the process on a starter generator first as we have more room and the parts are bigger to work with. As we go through this you will work out what you need to do with the dynamotor although it does seem as though they were designed not to work in overunity.

14 slots s not ideal as it is not divisible by 4 poles but before we pull it all apart lets find out as much as we can about it. In engineering it is common to choose a prime number or two times a prime number for rotating devices as it reduces harmonic vibrations caused by imbalance but we would ideally need a number divisible by four.

Do you know of any places on the internet or PDFs with the details of your device, pictures would be good too?

Are all the windings the same or are there two motor windings and two generator windings?

What is the gap between the rotor and stator?

Next we need to measure the angle of the brushes when compared to the field and rotor windings.

The primary use of the inductive collapse is to aid the motor function but if i am right about the iron losses we should have improved motor function anyway when we have the device finished.

Any information about the efficiency would be a good guide as what to expect when we modify it but failing that the resistance of the original coils and the rotor stator gap will give us a clue.

I will be asking lots of questions at first but don't be put off because it is info that we need so that we can make it as efficient as we can.

Hiwater	Re: The Lockridge device « Reply #48 on: 2012-04-21, 04:37:03 »
Full Member Posts: 137	Mbrownn, pm me with your e-mail address. I should be able to send you some links on the GM generator. Thanks hiwater.

Hiwater

Re: The Lockridge device « Reply #49 on: 2012-04-21, 19:14:45 »

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Posts: 137

Mike. BNR parts have vw generators on ebay. I have talked to them on ths phone .Very willing to answer questions. They did send me a picture of the old and newer vw armatures. But i cant find it. I did print it out to have on hand. The windings look pretty heavy. Also the slots are at an angle. The early style has a clamp ring around the slots on the armature opposite the commutator end. Just some info on those. still looking for more info on the GM gen to send you.
The stock generators only have two feild coils they are for charging, but they will motorise just the way they are. 2800-3200rpm depemnding on how good they are.
What i done was took 2 coils from a gm starter and put in place of these coils for motorising. So another 2 coils could be added if need be.

The armature gap is .081 of an inch. The brush angle is dead center on the feild coils and with the brushes 1/4 inch off center line on each side. brushes on the commutator are set 180 apart. As far as effeciency any where from .24 amps to .76 amps at stabilised speed.
If i remember start up amps were about 1.5 untill it gets up to speed.
How do you check the resistance of the coils . i have tried before but dont know how to read the multimeter. If I havent provided enough info keep after me untill i get right. curt.