Internally cooled rotor for rotary mechanism

Claim 1

IN A ROTARY MECHANISM COMPRISING AN OUTER BODY HAVING A CAVITY THEREIN, A ROTATABLE SHAFT MOUNTED IN SAID OUTER BODY CO-AXIAL WITH SAID CAVITY AND HAVING AN ECCENTRIC PORTION THEREON, A ROTOR JOURNALED ON SAID ECCENTRI PORTION, SAID ROTOR HAVING A MULTI-LOBED PERIPHERAL SURFACE FORMING A PLURALITY OF CIRCUMFERENTIALLY-SPACED APEX PORTIONS FOR SEALING ENGAGEMENT WITH THE INNER PERIPHERAL SURFACE OF SAID OUTER BODY THEREBY FORMING WORKING CHAMBERS BETWEEN THE ROTOR PERIPHERAL SURFACE AND THE INNER PERIPHERAL SURFACE OF SAID OUTER BODY WHICH UPON RELATIVE ROTATION OF SAID ROTOR AND SAID OUTER BODY VARY IN VOLUME, SAID ROTOR HAVING A HOLLOW INTERIOR WITH A PLURALITY OF SPACED RIBS PROJECTING INWARDLY FROM THE OUTER WALL OF THE HOLLOW ROTOR WITH EACH OF SAID RIBS RUNNING FROM ONE END FACE OF THE ROTOR TO THE OTHER IN A DIRECTION INCLINED TO THE ROTOR AXIS TO FORM SEPARATING WALLS OF A PLURALITY OF OPEN-END PASSAGEWAYS INCLINED TO THE ROTOR AXIS, SAID ROTOR ALSO HAVING AN INNER ANNULAR WALL PORTION SECURED ACROSS SAID RIBS TO FORM THE INNER WALLS OF SAID PASSAGEWAYS; MEANS FOR SUPPLYING A LIQUID COOLANT TO ONE END FACE O F THE ROTOR FOR FLOW OF THE COOLANT INTO ADJACENT OPEN ENDS OF SAID ROTOR PASSAGEWAYS, THE INCLINATION OF SAID ROTOR PASSAGEWAY SEPARATING WALLS BEING SUCH, RELATIVE TO THE DIRECTION OF ROTOR ROTATION, TO FUNCTION AS A PUMP DURING ROTOR ROTATION TO PUMP THE LIQUID COOLANT THROUGH SAID ROTOR INCLINED PASSAGEWAYS FROM SAID ONE ROTOR END FACE TO THE OTHER ROTOR END FACE.