Electromagnetically actuated linear reciprocating self-timed motor

An improved electromagnetically actuated linear reciprocating motor, said motor comprising:

• at least two laterally opposed axially spaced relatively fixed end magnet assemblies,
• said end magnet assemblies comprising primary and secondary electromagnet coils,
• an electromagnetic piston assembly mounted between said end magnet assemblies for reciprocation towards and away from said end magnet assemblies and being in axial alignment therewith, said piston assembly including a piston electromagnet coil,
• an electrical current source,
• means for supplying DC current from said source to said piston electromagnet coil for setting up a DC magnetic field within said piston,
• means responsive to piston assembly reciprocation for periodically connecting said source to said fixed end magnet primary coils for momentarily setting up like magnetic fields between the opposed ends of said piston coils and said end magnet primary coil when said piston coil is near top dead center at the end of its stroke to create momentary high repulsion forces between said piston assembly and said end magnet coil assemblies sequentially to rapidly effect reciprocation of said electromagnet piston assembly, and
• means for connecting said secondary electromagnet coils of said end magnet assemblies to said electrical source to return electrical power induced within said secondary coils to said source as a result of movement of said piston assembly.