Air cooled engines and vehicle heating systems

Claim 1

AN AIR-COOLED ENGINE AND HEATING SYSTEM FOR A VEHICLE HAVING A PASSENGER COMPARTMENT: COMPRISING AN INTERNAL COMBUSTION ENGINE HAVING AT LEAST A PAIR OF CYLINDERS IN LINE, A CRANKSHAFT AND AN EXHAUST PIPE, A BLADED CYLINDRICAL ROTOR MOUNTED OPPOSITE THE CYLINDERS FOR ROTATION ABOUT AN AXIS PARALLEL TO THAT OF THE CRANKSHAFT, FIRST AND SECOND GUIDE WALLS EXTENDING FROM ADJACENT THE ROTOR ON OPPOSITE SIDES THEREOF RESPECTIVELY TO THE LOWER AND UPPER ENDS OF THE CYLINDERS, END WALLS JOINING THE GUIDE WALLS, SAID GUIDE WALLS FORMING A DIFFUSER AND CO-OPERATING WITH THE ROTOR ON ROTATION THEREOF TO SET UP A FLOW OF AIR FROM THE SIDE OF THE ROTOR OPPOSITE THE DIFFUSER THROUGH THE PATH OF THE ROTATING BLADES OF THE ROTOR AND THENCE AGAIN THROUGH THE PATH OF THE ROTATING BLADES TO THE DIFFUSER, A DUCT ABOUT THE EXHAUST PIPE, AN OPENING IN THE SECOND DIFFUSER WALL LEADING INTO THE DUCT, AND A DEFLECTOR IN THE DIFFUSER TO SEPARATE OFF A PORTION OF THE FLOW THEREIN AND PASS IT INTO THE DUCT FOR HEATING BY THE EXHAUST PIPE AND DELIVERY TO THE VEHICLE PASSENGER COMPARTMENT.