{HEAD ~ The present invention} has {TAIL ~ the objects} to provide the electromagnetic piston engine which can do without a variety of resistance inherent in internal combustion piston engines, which reduces the weight corresponding to a rotary assembly portion to a smaller value even if a great output is produced, which can be readily employed together with power transmission mechanisms and so on for use with conventional internal combustion piston engines, and which has a high efficiency in energy consumption 
has
{ HEAD ~ The present invention } has { TAIL ~ the objects } to provide the electromagnetic piston engine which can do without a variety of resistance inherent in internal combustion piston engines , which reduces the weight corresponding to a rotary assembly portion to a smaller value even if a great output is produced , which can be readily employed together with power transmission mechanisms and so on for use with conventional internal combustion piston engines , and which has a high efficiency in energy consumption
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