The electromagnetic piston engine according to the present invention in a still further aspect is constructed by arranging a combination of the cylinder with the piston in the aspects described above as a one assembly, arranging {HEAD ~ the one assembly} in {TAIL ~ plural numbers} and operating the plural assemblies in a parallel way, and converting a reciprocal movement of the piston in each of the plural assemblies into a rotary movement of a single crank shaft by a crank mechanism 
The electromagnetic piston engine according to the present invention in a still further aspect is constructed by arranging a combination of the cylinder with the piston in the aspects described above as a one assembly , arranging { HEAD ~ the one assembly } in { TAIL ~ plural numbers } and operating the plural assemblies in a parallel way , and converting a reciprocal movement of the piston in each of the plural assemblies into a rotary movement of a single crank shaft by a crank mechanism
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