Variable speed hydraulic coupling

Claim 1

A VARIABLE SPEED HYDRAULIC COUPLING INTERPOSED BETWEEN ROTARY POWER DRIVEN MEANS AND A DRIVEN SHAFT COMPRISING, A ROTATABLE CASING HAVING ONE END WALL WITH AN AXIAL OPENING THEREIN, SAID CASING HAVING A PERIPHERAL WALL EXTENDING FROM SAID END WALL AND TERMINATING IN AN OPEN END, AN OUTWARDLY EXTENDING ANNULAR FLANGE ON SAID PERIPHERAL WALL ADJACENT SAID OPEN END, A PLURALITY OF SPACED OUTWARDLY EXTENDING FINS EXTENDING RADIALLY ON SAID END WALL AND THEN LONGITUDINALLY ON SAID PERIPHERAL WALL TO SAID ANNULAR FLANGE WHEREBY ROTATION OF SAID CASING INDUCES AIR FLOW ALONG SAID WALLS AND FINS, A DRIVE SHAFT OPERATIVELY CONNECTED WITH THE ROTARY POWER DRIVEN MEANS AND HAVING A HEAD ADJACENT ONE END, MEANS IN THE CASING AND ENGAGING SAID HEAD TO SECURE THE HEAD TO THE CASING END WALL IN FLUID-TIGHT SEALED ENGAGEMENT, AN END PLATE SECURED TO THE PERIPHERAL WALL OF THE CASING IN FLUID-TIGHT ENGAGEMENT TO CLOSE THE OPEN END THEREOF, SAID DRIVEN SHAFT BEING ROTATABLY MOUNTED IN SAID END PLATE AND EXTENDING INTO SAID CASING, A GEAR PUMP TYPE TRANSMISSION MECHANISM INCLUDING A BODY IN THE CASING, A MANIFOLD PLATE, MEANS SECURING THE MANIFOLD PLATE TO THE END PLATE WITH THE PUMP BODY THEREBETWEEN WHEREBY SAID END PLATE AND SAID MANIFOLD PLATE ARE SIDES OF SAID PUMP MECHANISM, SAID MANIFOLD PLATE HAVING A PERIPHERY SLIGHTLY SPACED FROM THE PERIPHERAL WALL OF THE CASING TO DEFINE A THIN OIL PASSAGE THEREBETWEEN, SAID PUMP HAVING A SUN GEAR FIXED TO THE DRIVEN SHAFT AND A PLURALITY OF PLANET GEARS ROTATABLY MOUNTED IN SAID BODY IN MESHING ENGAGEMENT WITH THE SUN GEAR TO FORM PUMPS, SAID CASING BEING PARTIALLY FILLED WITH OIL WHEREBY DURING ROTATION OF SAID CASING THERE IS PROVIDED AN OUTER ANNULAR ZONE OF OIL AND AN INNER CENTRAL ZONE OF AIR, A PLURALITY OF OIL INLET PASSAGES IN SAID BODY COMMUNICATING THE INLET CHAMBERS WITH THE OIL ZONE AND HAVING INLET OPENINGS DISPOSED WITHIN THE ZONE OF OIL CONSTANTLY FULLY OPEN TO THE INFLOW OF OIL, A PLURALITY OF AIR INTAKE PORTS IN SAID MANIFOLD PLATE AND HAVING COMMUNICATION WITH THE PUMPS, A PLURALITY OF RADIALLY DISPOSED FLUID DISCHARGE PORTS SPACED FROM THE AIR INTAKE PORTS AND HAVING COMMUNICATION WITH THE PUMPS, AND A VALVE MEMBER MOVABLE TO SELECTIVELY OPEN AND CLOSE THE AIR INTAKE AND FLUID DISCHARGE PORTS, AND MEANS CONNECTED TO SAID VALVE AND EXTENDING EXTERIORLY OF SAID CASING AND OPERABLE DURING ROTATION OF SAID CASING FOR MOVING SAID VALVE AND IN PORT CLOSING MOVEMENT SAID VALVE PROGRESSIVELY CLOSES THE AIR INTAKE PORTS AND THEN THE FLUID DISCHARGE PORTS TO ARREST THE FLOW OF FLUID FROM SAID DISCHARGE PORTS.