Compound turbine engine

Claim 1

A COMPOUND ENGINE COMPRISING A TWO CYCLE ENGINE WITH A COMBUSTION CYLINDER AND A PRESSURE REGULATOR CYLINDER, A POWER PISTON RECIPROCABLE IN SAID COMBUSTION CHAMBER AND OPERATIVELY CONNECTED TO A CRANKSHAFT, THE CYLINDRICAL SIDE WALL OF SAID COMBUSTION CYLINDER HAVING AN AIR INTAKE PORT THEREIN WHICH IS COVERED AND UNCOVERED BY SAID PISTON AS IT RECIPROCATES, SAID PORT BEING UNCOVERED AT THE END PORTION OF THE POWER STROKE AND INITIAL PORTION OF THE COMPRESSION STROKE OF SAID PISTON TO PROVIDE AIR INTAKE AT THIS PORTION OF THE STROKE, AND BEING COVERED DURING THE COMPRESSION, COMBUSTION AND POWER-EXHAUST PORTIONS OF THE POWER PISTON CYCLE, A SECOND PISTON RECIPROCABLE IN SAID PRESSURE REGULATOR CYLINDER, EXHAUST PASSAGE MEANS CONNECTING THE TOP PORTION OF SAID PRESSURE REGULATOR CYLINDER WITH A SECOND PORT IN THE CYLINDRICAL SIDE WALL OF SAID COMBUSTION CYLINDER, SAID SECOND PORT BEING COVERED BY SAID POWER PISTON ONLY DURING THE END PORTION OF THE COMPRESSION STROKE AND THE INITIAL PORTION OF THE POWER STROKE AFTER COMBUSTION AND BEING UNCOVERED DURING THE FOLLOWING, POWER-EXHAUST PORTION OF THE POWER STROKE, THE AIR INTAKE END PORTION OF SAID POWER STROKE, AND THE INITIAL PORTION OF THE COMPRESSION STROKE, SAID PRESSURE REGULATOR CYLINDER HAVING AN EXHAUST PORT IN THE CYLINDRICAL SIDE WALL, SAID SECOND PISTON HAVING A PASSAGE THEREIN OPENING INTO THE TOP PORTION OF SAID SECOND CYLINDER AND ADAPTED TO BE ALIGNED WITH SAID LAST-MENTIONED PORT DURING A PORTION ONLY OF THE STROKE OF SAID SECOND PISTON AND MEANS RECIPROCATING SAID SECOND PISTON IN TIMING RELATIONSHIP TO SAID FIRST-MENTIONED PISTON TO ALIGN SAID PASSAGE OF SAID SECOND PISTON WITH SAID LAST-MENTIONED PORT DURING ONLY THE POWER-EXHAUST PORTION OF THE STROKE OF SAID POWER PISTON AND WHEN SAID SECOND PISTON IS IN THE AREA OF MAXIMUM COMPRESSION IN SAID PRESSURE REGULATOR CYLINDER, SAID SECOND PISTON LAGGING SAID POWER PISTON TO PROVIDE A TIMING IN WHICH SAID SECOND PISTON IS ON ITS SUCTION STROKE DURING THE AIR INTAKE PORTION OF THE STROKE OF SAID POWER PISTON, WHEREBY SAID SUCTION STROKE OF SAID SECOND PISTON SWEEPS INTAKE AIR THROUGH SAID COMBUSTION CYLINDER AND SAID EXHAUST PASSAGE MEANS INTO SAID PRESSURE REGULATOR CYLINDER, SAID AIR WHICH IS SWEPT INTO SAID PRESSURE REGULATOR CYLINDER BEING COMPRESSED THEREIN BY SAID SECOND PISTON ON ITS COMPRESSION STROKE WHILE SAID SECOND PORT OF SAID COMBUSTION CYLINDER IS CLOSED BY SAID POWER PISTON, A TURBINE, AND MEANS FOR DISCHARGING THE RESULTING MIXTURE OF EXHAUST GASES AND COMPRESSED AIR EXITING THROUGH SAID PORT OF SAID PRESSURE REGULATOR PISTON INTO SAID TURBINE.