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