Exhaust pressure depression apparatus for increasing the power generating efficiencyof heat engines

Claim 1

IN COMBINATION WITH A FLUID DRIVEN ENGINE HAVING POWER GENERATING COMPONENTS OPERABLE AS A RESULT OF A PRESSURE DROP OF ENGINE OPERATING FLUID ACROSS SAID COMPONENTS AND INTO AN EXHAUST CHAMBER, A PRESSURE DEPRESSION DIFFUSOR CONNECTED TO RECEIVE ALL ENGINE OPERATING FLUID EXITING FROM SAID ENGING THROUGH SAID EXHAUST CHAMBER AND TO CREATE A CONTINUAL PRESSURE DEPRESSION IN SAID EXHAUST CHAMBER AND AT THE EXIT SIDE OF SAID COMPONENTS, SAID DIFFUSOR COMPRISING: AN OUTER CIRCUMSCRIBING PERIPHERAL DUCT CONTAINING A PLURALITY OF ANNULAR REARWARDLY CONVERGENT, AXIALLY SPACED APART, COAXIAL NOZZLE MEMBERS SECURED TO THE INNER SURFACE OF SAID DUCT; EACH NOZZLE MEMBER TERMINATING IN A REARWARDLY DISPOSED ORIFICE AND THE DIAMETERS OF THE ORIFICE INCREASING IN THE DOWNSTREAM DIRECTION AND THE FURTHERMOST DOWNSTREAM ORIFICE BEING IN FLUID COMMUNICATION DIRECTLY TO ATMOSPHERIC PRESSURE; ADJACENT PAIR OF NOZZLE MEMBERS, IN COOPERATION WITH SAID DUCT, CONSTITUTING ANNULAR CHAMBERS HAVING ANNULAR OPENINGS DEFINED BY THE NOZZLE OPENING AND OTHERWISE BEING CLOSED; MEANS PROVIDING FLUID COMMUNICATION BETWEEN THE FURTHEST UPSTREAM NOZZLE CHAMBER AND SAID EXHAUST CHAMBER; AND MEANS DIRECTING A COAXIAL STREAM OF HIGH VELOCITY FLUID INTO THE UPSTREAM END OF SAID DIFFUSOR, THROUGH AND OUT OF THE DOWNSTREAM NOZZLE ORIFICE OF SAID DIFFUSOR.