Rotary combustion engine

Claim 1

A ROTARY INTERNAL COMBUSTION ENGINE, COMPRISING IN COMBINATION ON OUTER BODY HAVING A CAVITY THEREIN HAVING AN AXIS, AN INNER BODY DISPOSED WITHIN SAID CAVITY AND ROTATABLE RELATIVE TO SAID OUTER BODY ABOUT AN AXIS SPACED FROM BUT PARALLEL TO SAID CAVITY AXIS, SAID OUTER BODY HAVING AXIALLY SPACED END WALLS AND A PERIPHERAL WALL INTERCONNECTING SAID END WALLS TO FORM SAID CAVITY, THE INNER SURFACE OF SAID PERIPHERAL WALL HAVING A MULTI-LOBED PROFILE WHICH IS BASICALLY AN EPITROCHOID, SAID INNER BODY HAVING END FACES DISPOSED ADJACENT TO SAID END WALLS FOR SEALING COOPERATION THEREWITH AND HAVING A PERIPHERAL SURFACE WITH A PLURALITY OF CIRCUMFERENTIALLY-SPACED APEX PORTIONS, AN APEX SEAL MEMBER CARRIED BY EACH OF SAID APEX PORTIONS AND ENGAGING THE INNER SURFACE OF SAID PERIPHERAL WALL IN SEALING RELATION TO FORM A PLURALITY OF WORKING CHAMBERS BETWEEN THE TWO BODIES WHICH VARY IN VOLUME UPON RELATIVE ROTATION OF THE TWO BODIES, SAID OUTER BODY HAVING A MAIN INTAKE PORT OF RELATIVELY LARGE CROSSSECTION OPENING INTO SAID CAVITY AND HAVING A RELATIVELY LONG MAIN INDUCTION CHANNEL OF RELATIVELY LARGE CROSSSECTION COMMUNICATING WITH SAID MAIN INTAKE PORT AND HAVING THROTTLE MEANS THEREIN RELATIVELY REMOTE FROM SAID MAIN INTAKE PORT, SAID OUTER BODY HAVING AN EXHAUST PORT THEREIN COMMUNICATING WITH AN EXHAUST CHANNEL THERETHROUGH, SAID MAIN INTAKE PORT AND SAID EXHAUST PORT BEING SO DISPOSED THAT THEY COMMUNICATE SIMULTANEOUSLY WITH THE SAME WORKING CHAMBER DURING THE LAST PORTION OF THE EXHAUST CYCLE, SAID MAIN INDUCTION CHANNEL HAVING AN OBTURATING ELEMENT THEREIN POSITIONED ADJACENT TO SAID MAIN INTAKE PORT AND ADJUSTABLE TO PREVENT ENTRY OF EXHUST GASES THEREINTO AGAINST INTAKE PRESSURE IN SAID MAIN INDUCTION CHANNEL DURING PARTIAL-LOAD OPERATION, SAID OUTER BODY ALSO HAVING A PARTIAL-LOAD INTAKE PORT OF SMALLER CROSS-SECTION THAN SAID MAIN INTAKE PORT AND OPENING INTO SAID CAVITY AND HAVING A PARTIAL-LOAD INDUCTION CHANNEL COMMUNICATING WITH SAID PARALLEL-LOAD INTAKE PORT, SAID PARTIAL-LOAD INTAKE PORT BEING SO DISPOSED IN SAID OUTER BODY THAT SAID PARTIAL-LOAD INTAKE PORT IS OPEN TO A WORKING CHAMBER DURING THE OPERATING CYCLE ONLY AFTER SAID EXHAUST CYCLE IN SAID CHAMBER HAS BEEN COMPLETED AND AFTER SAID INNER BODY HAS CLOSED SAID CHAMBER FROM SAID EXHAUST PORT.