Cooling system for the rotor of a rotary internal combustion engine

Claim 1

A ROTARY INTERNAL COMBUSTION ENGINE COMPRISING SPACED-APART SIDE WALLS AND A PERIPHERAL WALL INTERCONNECTING THE SIDE WALLS TO FORM A HOLLOW OUTER BODY, A ROTATABLE SHAFT JOURNALED IN THE SIDE WALLS AND HAVING AN ECCENTRIC PORTION DISPOSED WITHIN SAID OUTER BODY, AND A ROTOR DISPOSED WITHIN THE OUTER BODY AND HAVING A PLURALITY OF PORTIONS SWEEPING THE INNER SURFACE OF THE PERIPHERAL WALL IN SEALING RELATION THEREWITH, THE ROTOR BEING MOUNTED ON THE ECCENTRIC FOR ROTATION RELATIVE TO THE OUTER BODY AND TO THE ECCENTRIC, SAID ROTOR HAVING AN INTERNAL CAVITY FOR THE FLOW OF A WORKING FLUID THROUGH THE ROTOR, THE CAVITY BEING OPEN TOWARD EACH OF THE SIDE WALLS, ONE SIDE WALL HAVING A PASSAGE FOR SUPPLYING THE WORKING FLUID THERETHROUGH TO THE ROTOR CAVITY, SUCH PASSAGE BEING LOCATED IN THAT PORTION OF SAID ONE SIDE WALL WHICH IS AT ALL ROTOR POSITIONS RADIALLY INWARD OF THE OUTER PERIPHERY OF THE ROTOR, SAID ONE SIDE WALL ALSO INCLUDING A FLOW-OVER PASSAGE FOR CONNECTING THE WORKING FLUID SUPPLY PASSAGE WITH WORKING CHAMBERS OF THE ENGINE FORMED BETWEEN THE ROTOR AND INNER SURFACE OF THE OUTER BODY, THE OTHER SIDE WALL ALSO INCLUDING A FLOWOVER PASSAGE FOR CONNECTING THE ROTOR CAVITY WITH SAID WORKING CHAMBERS, THE OPENING AND CLOSING OF BOTH FLOWOVER PASSAGES BEING CONTROLLED BY THE OUTER CONTOUR OF THE ROTOR AND SAID FLOW-OVER PASSAGES BEING SO SITUATED AND FORMED THAT MOTION OF THE ROTOR DURING OPERATION OF THE MECHANISM RESULTS IN THE FLOW-OVER PASSAGE IN SAID OTHER SIDE WALL BEING OPENED TO EACH WORKING CHAMBER BEFORE THE FLOW-OVER PASSAGE IN THE SIDE WALL CONTAINING THE WORKING FLUID SUPPLY PASSAGE IS OPENED TO SAID CHAMBER SUCH THAT WORKING FLUID FIRST ENTERS EACH WORKING CHAMBER BY WAY OF THE ROTOR CAVITY AND FLOW-OVER PASSAGE IN THE SAID OTHER SIDE WALL, AND THEREAFTER ENTERS THE CHAMBER BY WAY OF THE FLOW-OVER PASSAGE IN THE SIDE WALL CONTAINING THE WORKING FLUID SUPPLY PASSAGE WITHOUT FLOWING THROUGH THE ROTOR CAVITY.