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Permanent Magnet Motor

Inventor: Howard R. Johnson
Year: 1980
Device: Permanent Magnet Motor
Folder: johnson
Original: Open article
Confidence
0.75
Practicability
0.30
Evidence
0.50
Fringe Score
0.85
Risk
0.20
TRL
3

Goal

Generate mechanical power using only the energy stored in permanent magnets, without external electricity or fuel.

Problem

Global energy shortage and the need for alternative power sources; desire for a motor that does not require external energy input.

Concept Summary

The invention uses a set of stationary permanent magnets (stator) and a moving curved armature magnet. By carefully dimensioning the armature and arranging the stator magnets, asymmetric attraction and repulsion forces produce a net torque that drives linear or rotary motion. The device is assembled from inexpensive parts (sticky tape, aluminum foil, plastic) and demonstrations have shown a model vehicle accelerating along a track and a rotary assembly spinning continuously while a focusing magnet is held in the field.

Detailed Description

The motor consists of a series of permanent magnets mounted on a high-permeability support plate. The armature magnet is curved (arcuate) with sharp leading and trailing edges and is slightly longer than two adjacent stator magnets plus the intervening gap (~3-1/8 inches). When the armature's north pole passes over a stator north pole it is repelled, and when it passes over a gap it is attracted. The opposite polarity applies to the south pole. By ensuring that the stronger repulsive or attractive forces dominate on one side, a net lateral force is created that moves the armature forward. The same principle applied in a circular arrangement yields continuous rotation. The prototypes were built with sticky tape, aluminum foil to hold the magnets, and plastic sheets for support. Demonstrations showed a model car zip across a track and a rotary assembly spin at a respectable speed as long as the focusing magnet remained in the field. The inventor claims a 5 kW generator based on this principle is under construction.

Principles

  • Permanent magnet interaction
  • Magnetic repulsion and attraction
  • Asymmetric force distribution for net torque
  • Curved (arcuate) armature geometry

Scientific Domains

Physics Electromagnetism Mechanical Engineering

Materials

  • Samarium-cobalt permanent magnets
  • Ferrite permanent magnets
  • Rubber-based magnet material
  • Aluminum foil
  • Plastic sheet
  • Sticky tape

Mechanisms of Action

  • Magnetic forces between moving armature and stationary stator magnets
  • Differential attraction/repulsion due to magnet geometry
  • Continuous torque generated by sequential repulsion/attraction cycles

Energy Sources

Stored magnetic energy in permanent magnets

Applications

  • Alternative power generation
  • Vehicle propulsion
  • Industrial motor drives

Claimed Performance

Linear model vehicle accelerated across a track without any push; rotary motor spun at a respectable speed as long as the focusing magnet remained in the field; a 5 kW electric generator is under development.

Experimental Evidence

The author of the article personally replicated the demonstrations: a model car zipped from one end of a magnet-track to the other, and a circular magnet assembly began rotating and maintained speed while a focusing magnet was held in place. The tunnel-type device also worked during the visit.

Replication Status

Demonstrated by the article's author; no independent peer-reviewed replication reported.

Limitations

  • High cost of high-performance permanent magnets
  • No clear theoretical explanation of energy source
  • Lack of independent verification
  • Potential conflict with conservation of energy laws

Red Flags

  • Claims of "free lunch" or free energy
  • Absence of quantitative performance data
  • Potential violation of established physics principles
  • Reliance on anecdotal demonstrations

Keywords

permanent magnet motor magnetic propulsion free energy magnet motor magnetic torque rotary motion linear motor

Related Technologies

Permanent magnet generator Magnetic levitation transport Free-energy claims Magnetically driven propulsion

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