Liquid additive apparatus

Claim 1

LIQUID ADDITIVE APPARATUS FOR ADDING A FIRST LIQUID TO A SECOND LIQUID IN A DESIRED RATIO, COMPRISING: HOUSING MEANS DEFINING FIRST AND SECOND CHAMBER MEANS, SAID FIRST CHAMBER MEANS BEING PROVIDED WITH INFLOW CONDUIT MEANS THEREINTO ADAPTED TO BE CONNECTED TO SUPPLY MEANS FOR A FIRST ADDITIVE LIQUID WHICH IS TO BE ADDED TO A SECOND LIQUID, SAID SECOND CHAMBER MEANS BEING PROVIDED WITH INFLOW CONDUIT MEANS ADAPTED TO BE SUPPLIED WITH SAID SECOND LIQUID, SAID FIRST AND SECOND CHAMBER MEANS BEING PROVIDED WITH OUTFLOW CONDUIT MEANS AND COMMON OUTFLOW DUCT MEANS CONNECTED THERETO AND ADAPTED TO BE CONNECTED WITH RESPECT TO PUMPING MEANS AND CLOSED-LOOP HYDRAULIC CIRCUIT MEANS FOR EFFECTIVELY PUMPING SAID FIRST AND SECOND LIQUIDS THROUGH SAID COMMON OUTFLOW DUCT MEANS AND SAID CLOSED LOOP HYDRAULIC CIRCUIT; RATIO-CONTROLLING MEANS FOR CONTROLLING THE RATIO OF SAID FIRST AND SECOND LIQUIDS DRAWN FROM SAID FIRST AND SECOND CHAMBER MEANS THROUGH SAID OUTFLOW CONDUIT MEANS THEREOF INTO SAID COMMON OUTFLOW DUCT MEANS, SAID RATIO-CONTROLLING MEANS COMPRISING CONTROLLABLY BEJUSTABLE METERING VALVE MEANS EFFECTIVELY CONNECTED BE TWEEN SAID FIRST CHAMBER MEANS AND SAID COMMON OUTFLOW DUCT MEANS IN THE FLOW PATH FROM SAID FIRST CHAMBER MEANS THROUGH SAID OUTFLOW CONDUIT MEANS THEREOF; AND PUMPING MEANS COMPRISING AN AUXILIARY PUMP HAVING INFLOW AND OUTFLOW SIDES AND A MAIN PUMP HAVING A LOW PRESSURE SUCTION INLET SIDE AND A HIGH PRESSURE OUTLET SIDE ADAPTED TO BE CONNECTED IN A CLOSED-LOOP HYDRAULIC CIRCUIT MEANS FOR CIRCULATING THE MIXTURE OF SAID FIRST AND SECOND LIQUIDS, WITH SAID INFLOW SIDE OF SAID AUXILIARY PUMP BEING CONNECTED TO SAID COMMON OUTFLOW DUCT MEANS AND WITH SAID OUTFLW SIDE THEREOF BEING ADAPTED TO BE CONNECTED TO SAID OUTLET SIDE OF SAID MAIN PUMP WHEREBY TO EFFECTIVELY CONNECT SAID LIQUID ADDITIVE APPARATUS IN PARALLEL TO A PORTION OF SAID CLOSEDLOOP HYDRAULIC CIRCUIT MEANS AND THE MIXTURE OF SAID FIRST AND SECOND LIQUIDS FORCIBLY CIRCULATED THEREIN BY SAID MAIN PUMP; DRIVING, LIQUID-POWERED, MOTOR MEANS DRIVINGLY COUPLED WITH RESPECT TO SAID AUXILIARY PUMP FOR DRIVING SAME; AND MEANS FOR COUPLING SAID INFLOW CONDUIT MEANS OF SAID SECOND CHAMBER MEANS, AND SAID SECOND LIQUID FLOWING THEREIN, WITH RESPECT TO SAID LIQUIDPOWERED MOTOR MEANS FOR ROTATING SAME.