Automatic regulators for hydrostatic transmissions of automobile vehicles

Claim 1

AUTOMATIC REGULATION DEVICE FOR HYDROSTATIC TRANSMISSION OF AN AUTOMOBILE VEHICLE HAVING A THERMAL ENGINE, A FUEL FEED CIRCUIT THEREFOR AND AN ACCELERATION PEDAL, SAID TRANSMISSION COMPRISING A HYDRAULIC PUMP HAVING INLET AND OUTLET PORTS AND DRIVEN FROM SAID THERMAL ENGINE, AT LEAST ONE HYDRAULIC MOTOR ACTUATED BY SAID PUMP, A DISC ADAPTED TO BE SET IN DIFFERENT ANGULAR POSITIONS FOR CONTROLLING THE VARIATION IN THE OUTPUT OF SAID PUMP, A HYDRAULIC CIRCUIT CONNECTING SAID PUMP AND MOTOR, A VALVE FOR SHORT-CIRCUITING SAID INLET AND OUTLET PORTS OF SAID HYDRALIC PUMP, A FEED PUMP DRIVEN BY SAID THERMAL ENGINE CONNECTED TO SAID HYDRAULIC CIRCUIT, A CENTRIFUGAL DEVICE ASSOCIATED WITH SAID FEED PUMP FOR CONTROLLING THE DELIVERY OF FLUID FROM SAID FEED PUMP TO SAID HYDRAULIC CIRCUIT AT A PRESSURE OF A VALVE PROPORTIONAL TO THE VELOCITY OF ROTATION OF SAID THERMAL ENGINE, MEANS CONTROLLED BY SAID FEED PUMP FOR CONTROLLING THE DELIVERY OF FUEL TO SAID THERMAL ENGINE FEED CIRCUIT, SAID MEANS BEING RESPONSIVE IN A UNIDIRECTIONAL MANNER TO SAID ACCELERATOR PEDAL, HYDRAULIC CYLINDER MEANS ADAPTED TO MODIFY THE INCLINATION OF SAID PUMP DISC AND A SECOND VALVE CONTROLLED BY SAID FEED PUMP CONTROLLING SAID HYDRAULIC CLYINDER MEANS.