Rotary combustion engine

Claim 1

IN A VALVELESS ROTARY ENGINE OF THE KIND DESCRIBED HAVING SUITABLE COOLING AND LUBRICATION MEANS COMPRISING A CENTRAL CASING HAVING AN INTERNAL CYLINDRICAL SURFACE DISPOSED ABOUT AN AXIS, END PLATES ATTACHED TO THE AXIALLY SPACED ENDS OF SAID CASING TO FORM A CLOSED CHAMBER, TWO PAIRS OF VANES ATTACHED TO INDEPENDENT SHAFTS, ONE OF SAID SHAFTS BEING CONCENTRICALLY ARRANGED INSIDE THE OTHER OF SAID SHAFTS AND BEING DISPOSED ALONG THE AXIS OF SAID CENTRAL CASING, EACH VANE OF EACH PAIR OF VANES BEING INTERMEDIATE THE OTHER PAIR OF VANES AND SAID VANES BEING DISPOSED IN SAID CLOSED CHAMBER AND DIVIDING SAME INTO FOUR WORKING CHAMBERS WHOSE VOLUMES ARE REGULATED AND ALTERED CONTINUOUSLY, EACH VANE HAVING SUITABLE SEALS TO PREVENT LEAKAGE BETWEEN SAID VANES AND SAID CENTRAL CASING, SAID CENTRAL CASING HAVING INLET AND EXHAUST PORT MEANS AND IGNITION MEANS DISPOSED THEREIN, A FIXED PAIR OF CAM PLATES CARRYING CAM GROOVES AND AXIALLY SPACED ON THE AXIS OF SAID CENTRAL CASING, SAID SHAFTS EXTENDING FROM CENTRAL CASING TO A POINT INTERMEDIATE SAID FIXED CAM PLATES, EACH OF SAID SHAFTS HAVING AN ARM FIXED THERETO, CAM FOLLOWER MEANS CARRIED IN THE CAM GROOVES OF SAID FIXED CAM PLATES, A PAIR OF LINK MEANS ATTACHED TO EACH OF SAID CAM FOLLOWERS, ONE OF SAID LINK MEANS TO EACH PAIR BEING CONNECTED AT ITS FREE END TO THE ARM FIXED ON ONE OF SAID SHAFTS AND THE OTHER OF SAID LINK MEANS OF EACH PAIR BEING SIMILARLY CONNECTED TO THE ARM FIXED TO THE OTHER SAID SHAFTS WHEREBY SAID SHAFTS WILL HAVE RELATIVE MOVEMENT IN ADDITION TO ROTARY MOVEMENT, AND POWER-TAKE-OFF MEANS COMPRISING A PAIR OF ROTATABLE CAM PLATES INTERMEDIATE SAID FIXED CAM PLATES, SAID ROTATABLE CAM PLATES HAVING RADIAL GUIDE SLOTS ENGAGED BY SAID CAM FOLLOWERS, AND A POWER-TAKE-OFF SHAFT FIXED TO SAID ROTATABLE CAM PLATES AND EXTENDING OUTWARD ALONG SAID CENTRAL CASING AXIS.