Well it has been a little while but I’m back…
Today I want to share an idea that I cannot believe doesn’t exist through a practical application. “Green” has become big and I know it isn’t a trend. It’s simple, economics has brought awareness to a problem everyone knew existed but chose to deny. However, I don’t believe the critics who claim that once energy costs subside people will return to their previous behaviors of over consumption and wasteful habits. The issue is to mainstream now and is here to stay. Energy will only get more costly in the future as demand increases exponentially, making conservation and sustainability that much more important.
Now for the idea… The Magnet Car. In a former job I worked with the construction of generators. Specifically, the unit called an “exciter” which supplies electricity to a generator. Here is a simple physics lesson: If a magnetic field is in motion around a conductor, an electrical current is created. Here is an illustration and link:
This concept works in reverse as well: if you supply an electrical current through a conductor, a magnetic field can be created. This principal is a very, very rough explanation of how generators work. An electrical current is supplied making an enormous spinning electro-magnet (rotor) that is inside a huge conductor (stator) creating a very large amount of electricity. But how does the electricity get supplied to a rotor spinning at 3000 rpm or 3600 rpm in the first place? You can’t simply hook wires up to it, the answer is the exciter…
An exciter is basically a mini-generator. It creates electricity virtually out of thin air by use of permanent magnets. The permanent magnets are assembled on a diameter (PMG) that a stator (circular conductor) spins inside of, creating a small amount of electricity. This electricity is then delivered to the generator so a large amount of electricity can be created. This is a very crude and basic explanation of how the system works.
Now that you get the basics, the reality of a magnet powered vehicle comes from the PMG. The permanent magnets, whose charge can last for as much as 1,000 years, are stationary in the unit with a conductor spinning inside them.
Why not reverse this and have a PMG on a car with the drive shaft containing the magnets while the conductor (stator) is around it? A battery could maintain the electricity needed for low speed driving and turning on the car while the electricity created from the PMG could charge the battery. This is similar to current electric cars that need to be plugged in, except The Magnet Car wouldn’t require external charging… the magnets would provide the service. The current created would be AC, but this can easily be converted to the necessary DC current through diodes.
This is an idea that has been around for a while, specifically 1996 as this patent suggests. With the current mass attention to renewable energy, electric cars like the Chevy Volt, and an electric high performance car like the Tesla Roadster… why hasn’t the magnet powered car been given its fair shake? It is by far the most environmentally friendly option.