Part1: Understanding Murray's Generator



Their claim at 7:23 is that the over-unity results from eliminating the back-emf.  This is a common claim among enthusiasts such as these.

Back-emf is maximum when a typical motor is unloaded.  Under this condition, the rotor is turning at max speed and supplying essentially zero torque.  Essentially doing no productive work (power is proportional to speed times torque.)

You can eliminate back-emf in a typical motor by blocking the rotor (preventing the rotor from turning).  At which time the motor behaves like a short circuit .   In this condition, the motor is supplying maximum Torque but it is unable to move (speed =0) . Again, doing no productive work.

BTW: A U.S. Patent just certifies the ownership of an invention, it is not a certification that the thing actually works.  Just as a "Title" certifies your ownership of automobile, it does not certify that the automobile actually runs.

They claim to start producing these when they get investors.  That was 2009.  


What do you think?


Patreon:

https://www.patreon.com/posts/part1-murrays-52180843

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