Rotary internal combustion engine

Claim 1

A ROTARY COMBINATION ENGINE COMPRISING A MAIN HOUSING FORMED WITH A GENERALLY OVAL VERTICALLY ELONGATED ROTOR CAVITY COMPRISING A SUBSTANTIALLY SEMIC-CYLINDRICAL LOWER PORTION, AN ARCUATE TOP PORTION AT A RADIAL DISTANCE FROM THE CENTER OF SAID LOWER PORTION GREATER THAN THE RADIUS OF SAID LOWER PORTION, AND ARCUATE UPWARDLY CONVERGENT SIDE PORTIONS SMOOTHLY CONNECTING SAID ARCUATE TOP PORTION AND SUBSTANTIALLY SEMI-CYLINDRICAL LOWER PORTION, SAID CAVITY HAVING A FUEL INTAKE PORT COMMUNICATING WITH THE CAVITY AT ONE SIDE OF SAID TOP PORTION, FUEL IGNITION MEANS IN THE CAVITY ADJACENT THE OPPOSITE SIDE OF SAID TOP PORTION, SAID CAVITY BEING PROVIDED WITH A PERIPHERAL EXHAUST PORT IN SAID LOWER PORTION AT THE SAME SIDE OF THE CAVITY AS SAID INTAKE PORT, A SHAFT JOURNALED IN THE HOUSING WITH ITS AXIS DISPLACED FROM SAID CENTER TOWARD SAID ARCUATE TOP PORTION AND HAVING A POLYGONALLY SHAPED INTERMEDIATE PORTION, A ROTOR HAVING A PERIPHERY COMPRISING THREE SUCCESSIVE SIDES OF SIMILAR SHAPE, SAID ROTOR HAVING A CENTRAL POLYGONAL APERTURE LOOSELY RECEIVING SAID INTERMEDIATE PORTION OF THE SHAFT, SAID INTERMEDIATE SHAFT PORTION BEING SUFFICIENTLY LARGE IN SIZE SO THAT IT CANNOT ROTATE IN SAID POLYGONAL APERTURE, MEANS RESILIENTLY SUPPORTING SAID ROTOR ON SAID INTERMEDIATE SHAFT PORTION, AND RESPECTVE SEALING MEMBERKS ON THE PERIPHERY OF SAID ROTOR BETWEEN ITS SUCCESSIVE SIDES SEALINGLY ENGAGING THE PERIPHERAL SURFACE OF SAID ROTOR CAVITY AND COOPERATING WIHT SAID CONVERENT SIDE PORTIONS TO CAUSE THE ROTOR TO AT TIMES ASSURE A DEPRESSED POSITION PROVIDING A DIFFERENTIAL OF RADIAL DISTANCE BETWEEN THE CENTER OF THE SHAFT AND THE PORTIONS OF SAID PERIPHERAL SURFACE AT OPPOSITE SIDES OF THE IGNITION MEANS ENGAGED BY TWO SUCCESSIVE SEALING MEMBERS, WHEREBY TO DEFINE A DIFFERENTIAL THRUST SURFACE ON THE ROTOR.