In implementing the present invention, the spring less motor includes a buried magnet system having a significant, linear centering force and a high enough stiffness which acts as {TAIL ~ a spring} with {HEAD ~ a certain stiffness} to drive a piston a specific stroke length and to enable the spring less motor to be resonant at a frequency near an AC supply frequency 
In implementing the present invention , the spring less motor includes a buried magnet system having a significant , linear centering force and a high enough stiffness which acts as { TAIL ~ a spring } with { HEAD ~ a certain stiffness } to drive a piston a specific stroke length and to enable the spring less motor to be resonant at a frequency near an AC supply frequency
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