Absorption refrigeration systems

Claim 1

IN A PURGE ARRANGEMENT FOR AN ABSORPTION REFRIGERATION MACHINE COMPRISING AN ABSORBER SECTION, AN EVAPORATOR SECTION, A GENERATOR SECTION AND A CONDENSER SECTION, THE COMBINATION OF A PURGE TANK, GAS OUTLET MEANS TO DISCHARGE NONCONDENSIBLE GASES FROM SAID PURGE TANK, AN EJECTOR, A PURGE PUMP, MEANS TO PASS SOLUTION FROM SAID PURGE TANK TO SAID PURGE PUMP AND THROUGH SAID EJECTOR, MEANS TO RETURN SOLUTION FROM SAID EJECTOR TO SAID PURGE TANK, MEANS CONNECTING SAID ABSORBER TO A LOW PRESSURE REGION OF SAID EJECTOR FOR REMOVING A MIXTURE OF NONCONDENSIBLE GASES FROM SAID REFRIGERATION MACHINE AND DISCHARGING SAID MIXTURE TOWARD SAID PURGE TANK TOGETHER WITH THE SOLUTION PASSING THROUGH SAID EJECTOR, AND A VERTICALLY EXTENDING PASSAGE CONNECTED BETWEEN THE OUTLET OF SAID EJECTOR AND AN UPPER REGION OF SAID PURGE TANK FOR PASSING DIRECTLY NONCONDENSIBLE GASES SEPARATELY FROM SOLUTION RETURNED FROM THE EJECTOR TO SAID UPPER REGION OF THE PURGE TANK SO AS TO MINIMIZE THE QUANTITY OF NONCONDENSIBLE GASES IN SOLUTION PASSED THROUGH SAID EJECTOR FROM SAID PURGE PUMP, THERBY IMPROVING THE EFFECTIVENESS OF THE PURGE ARRANGEMENT.