Concentration control for absorption refrigeration systems

Claim 1

AN ABSORPTION REFRIGERATION SYSTEM COMPRISING: (A) AN ABSORBER FOR ABSORBING REFRIGERANT VAPOR; (B) AN EVAPORATOR FOR EVAPORATING REFRIGERANT AND PROVIDING A COOLING EFFECT; (C) A GENERATOR FOR CONCENTRATING WEAK ABSORBENT SOLUTION BY VAPORIZING REFRIGERANT THEREFROM; (D) A CONDENSER FOR CONDENSING REFRIGERANT VAPORIZED IN SAID GENEATOR; (E) RESERVOIR MEANS DISPOSED IN COMMUICATION WITH A LINE EXTENDING BETWEEN SAID EVAPORATOR AND SAID ABSORBER FOR COLLECTING LIQUID RESIDUE DISCHARGED FROM SAID EVAPORATOR PRIOR TO SAID RESIDUE ENTERING SAID ABSORBER; AND (F) MEANS FOR CONSTANTLY PASSING A SUBSTANTIALLY FIXED QUANTITY OF LIQUID RESIDUE FROM SAID RESERVOIR TO OTHER PORTIONS, OF SAID REFRIGERATION SYSTEM FOR CIRCULATION THEREIN, DURING OPERATION OF SAID SYSTEM SO AS TO AUTOMATICALLY ADJUST THE QUANTITY OF REFRIGERANT CIRCULATING IN SAID SYSTEM BY CHANGE IN THE QUANTITY OF REFRIGERANT STORED IN SAID RESERVOIR IN ACCORDANCE WITH THE DIFFERENCE BETWEEN SAID FIXED QUANTITY DISCHARGED FROM SAID RESERVOIR AND THE QUANTITY OF RESIDUE DISCHARGED FROM SAID EVAPORATOR, TO PROVIDE EFFCIENT OPERATION THEREOF.