Rotary internal combustion engine

Claim 1

A ROTARY INTERNAL COMBUSTION ENGINE COMPRISING FIRST AND SECOND OUTER BODIES, FIRST AND SECOND INNER BODIES RESPECTIVELY MOUNTED WITHIN SAID FIRST AND SECOND OUTER BODIES, THE SECOND OUTER AND INNER BODIES BEING RESPECTIVELY SUBSTANTIALLY LARGER THAN THE FIRST OUTER AND INNER BODIES, MEANS FOR EFFECTING ROTATION OF SAID INNER BODIES WITHIN SAID OUTER BODIES AND SUBSTANTIALLY IN PHASE WITH EACH OTHER, THE SAID INNER AND OUTER BODIES BEING RESPECTIVELY PROVIDED WITH SURFACES WHICH RESPECTIVELY DEFINE FIRST AND SECOND WORKING CHAMBERS, MEANS FOR SUPPLYING AIR SUCCESSIVELY TO EACH OF THE SECOND WORKING CHAMBERS AND FOR SUCCESSIVELY PERMITTING THE ESCAPE OF EXHAUST GASES THEREFROM, DUCTING FOR SUPPLYING AIR WHICH HAS BEEN COMPRESSED IN THE SECOND WORKING CHAMBER TO THE FIRST WORKING CHAMBERS FOR FURTHER COMPRESSION THEREIN, AND FOR SUPPLYING EXHAUST GASES WHICH HAVE BEEN EXPANDED IN THE FIRST WORKING CHAMBERS TO THE SECOND WORKING CHAMBERS FOR FURTHER EXPANSION THEREIN, AND MEANS FOR SUPPLYING FUEL SUCCESSIVELY TO EACH OF THE FIRST WORKING CHAMBERS, THE FIRST AND SECOND WORKIGN CHAMBERS VARYING IN VOLUME AND POSITION DURING THE ROTATION OF THE SAID INNER BODIES SO THAT A WORKING CYCLE IS EFFECTED, COMMUNICATION BETWEEN ANY TWO FIRST AND SECOND WORKING CHAMBERS STARTING WHEN ONE SAID CHAMBER IS SUBSTANTIALLY AT ITS MAXIMUM VOLUME AND THE OTHER SAID CHAMBER IS SIMULTANEOUSLY SUBSTANTIALLY AT ITS MINIMUM VOLUME AND CEASING SUBSTANTIALLY WHEN THE SAID ONE CHAMBER HAS REACHED ITS MINIMUM VOLUME AND THE SAID OTHER CHAMBER IS SIMULTANEOUSLY SUBSTANTIALLY AT IS MAXIMUM VOLUME.