Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search
« previous next »
Pages: [1] 2   Go Down

Author Topic: Kromrey generator solved(?)  (Read 13457 times)

pemox1

  • Newbie
  • *
  • Posts: 23
Kromrey generator solved(?)
« on: October 28, 2019, 02:42:39 PM »
Raymond Kromrey has signed up his patent in 1968.

Unfortunately I only can find his US-Patent: U.S.3,374,376

The explanation in this patent is a bit confusing, but the principle is (I think) clear:

A PM (permanent magnet) is attracted by an iron, which is wrapped with a coil and induces an electric voltage in this coil.

The best part:   The electric curcuit is OPEN, so there is no current. Because there's no current there can not arise a magnetic field in the coil !
That's why PM and iron are attracting each other until they're facing each other.

But exactly when they're facing each other, the electric circuit will be closed so that an electric current occurs which creates a magnetic fieldi n the coil and the iron.This magnetic field now repells the PM - and PM and iron are drifting apart.

It's like Luling argues:  the magnetic field will be "neutralised"!
Logged

pemox1

  • Newbie
  • *
  • Posts: 23
Re: Kromrey generator solved(?)
« Reply #1 on: January 02, 2020, 04:12:38 PM »
The principle:
And my first modified generator
Logged

sm0ky2

  • Hero Member
  • *****
  • Posts: 3948
Re: Kromrey generator solved(?)
« Reply #2 on: January 02, 2020, 06:07:23 PM »
Anti-Lenz


That seems like an easy build
have to address the switching issues
maybe as simple as a reed switch in the right place?
Logged

MasterPlaster

  • Hero Member
  • *****
  • Posts: 530
Re: Kromrey generator solved(?)
« Reply #3 on: January 02, 2020, 06:31:16 PM »
Logged

skywatcher

  • Sr. Member
  • ****
  • Posts: 441
Re: Kromrey generator solved(?)
« Reply #4 on: January 02, 2020, 08:02:51 PM »
As soon as the switch is closed, there will be a breaking effect on the rotor, like in every other generator.
Logged

pemox1

  • Newbie
  • *
  • Posts: 23
Re: Kromrey generator solved(?)
« Reply #5 on: January 02, 2020, 08:23:09 PM »
It's a bit more tricky.
Generator should start with 24VDC. That's about 12A.


It is not self-starting and it needs probably about 200 Hz or more to produce enough induction-voltage to run with its own power.

One magnet has a holding-force of about 1kg. With 42 magnets, this is a lot of power to drive.
That's why I'm working on an Arduino-prog for starting and thyristors for the self-running-mode.
Logged

skywatcher

  • Sr. Member
  • ****
  • Posts: 441
Re: Kromrey generator solved(?)
« Reply #6 on: January 02, 2020, 08:49:53 PM »
The patent is more than 50 years old. Enough time for lots of successful replications. Where are they ?
Logged

MasterPlaster

  • Hero Member
  • *****
  • Posts: 530
Re: Kromrey generator solved(?)
« Reply #7 on: January 02, 2020, 11:05:23 PM »
Quote from: skywatcher on January 02, 2020, 08:49:53 PM
The patent is more than 50 years old. Enough time for lots of successful replications. Where are they ?
Is this similar to motor used in Thailand to propel a motorbike?
There was a thread about it on OU.
Logged

pemox1

  • Newbie
  • *
  • Posts: 23
Re: Kromrey generator solved(?)
« Reply #8 on: January 05, 2020, 11:05:10 AM »
Here's a layout for selfrunning-mode.
I don't want to pull electrical power directly from the generator - like Kromrey did.
Think, it's better to take a belt and a (wind) generator - driven by the Kromrey-generator.

But I'm not really good with thyristors.     Can anyone find a mistake?

Relais 1 is only active in starting-mode.
Thyristor is a BT152.
Logged

sm0ky2

  • Hero Member
  • *****
  • Posts: 3948
Re: Kromrey generator solved(?)
« Reply #9 on: January 05, 2020, 07:13:04 PM »
A reed switch placed in the right spot?
Adjusted location for timing
Should do the trick.




That circuit above seems overly complicated and would require power to operate it.

Logged

bistander

  • Hero Member
  • *****
  • Posts: 705
Re: Kromrey generator solved(?)
« Reply #10 on: January 06, 2020, 04:17:59 PM »
Quote from: pemox1 on January 02, 2020, 04:12:38 PM
The principle:
And my first modified generator

Hi pemox1,

In panel #3, showing the magnet aligned with the center of the coil, the generated voltage in the coil will be zero.

In panel #4, showing the magnet departing from the coil center and the switch closed, the resulting current will produce an mmf distorting the field resulting in a force resisting the separation of the magnet from the coil center.

Regards,

bi
Logged

nix85

  • Hero Member
  • *****
  • Posts: 1431
Re: Kromrey generator solved(?)
« Reply #11 on: January 07, 2020, 05:28:04 AM »
 It seems to me he is reducing lenz but is using extremely confused and flawed theory in his patent to explain it.
Logged

sm0ky2

  • Hero Member
  • *****
  • Posts: 3948
Re: Kromrey generator solved(?)
« Reply #12 on: January 07, 2020, 07:43:48 AM »
2 months ago I would have ignored this completely.
But an electric machine I invented displays similar
properties in the right configuration.
The exact opposite of the electromagnetic drag
we experience with a normal motor/generator.


And by that I mean an electromagnetic force in the
direction of rotation in agreement with the negative portion
of Maxwell’s equations.


Probably a result of my education, I had never considered this to
be a ‘real value’ solution. But it exists, exactly as Maxwell told us.


It is a matter of timing and location of pickups.
In one configuration, the drag is against rotation.
In the other, the negative drag pushes the rotation along.
In between us a theoretical point of “no drag”.
Logged

pemox1

  • Newbie
  • *
  • Posts: 23
Re: Kromrey generator solved(?)
« Reply #13 on: January 07, 2020, 11:47:35 AM »
I'm very interested in your project. Even in your reed-switch. Can you please show me a type that can switch 12 ampere?
Logged

sm0ky2

  • Hero Member
  • *****
  • Posts: 3948
Re: Kromrey generator solved(?)
« Reply #14 on: January 07, 2020, 07:29:53 PM »
After giving this some though
I think this approach will work better.
Take a look at this optical sensor array
at the beginning


https://youtu.be/BPSsXKp_hWw
Logged
Pages: [1] 2   Go Up
« previous next »