An internal combustion engine 1 wherein said engine is a rotary engine and said movable means is a rotor having plural ones of said surfaces disposed to be subjected to gases of combustion, {HEAD ~ each} of said surfaces being provided with said plurality of {TAIL ~ pockets}, said heat insulation means and said covers 
An internal combustion engine 1 wherein said engine is a rotary engine and said movable means is a rotor having plural ones of said surfaces disposed to be subjected to gases of combustion , { HEAD ~ each } of said surfaces being provided with said plurality of { TAIL ~ pockets } , said heat insulation means and said covers
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