{HEAD ~ An internal combustion engine} 1 wherein said engine is a rotary engine and {TAIL ~ said movable means} is 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 
wherein
{ HEAD ~ An internal combustion engine } 1 wherein said engine is a rotary engine and { TAIL ~ said movable means } is 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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