ABSORPTION TYPE REFRIGERATING MACHINE

PURPOSE: To obtain an absorption type refrigerating machine which can be operated with an excellent thermal efficiency even when a heating medium is driven in a wide temperature range. CONSTITUTION: A regenerator 1 takes in a dilute solution (a) and makes it a concentrated solution (b) by concentration. An auxiliary absorber 2 makes the concentrated solution (c) absorb a refrigerant (m) evaporated by a low- temperature evaporator 3. The low-temperature evaporator 3 evaporates the refrigerant (n) coming from a condenser 7. By a low-temperature absorber 4, the solution coming from the auxiliary absorber 2 is made to absorb the vapor of the refrigerant (o) evaporated by the low-temperature evaporator 3. A high-temperature evaporator 5 evaporates the refrigerant P remaining after evaporation in the low-temperature evaporator 3. In a high-temperature absorber 6, an intermediate solution (d) coming from the low-temperature absorber 4 is made to absorb the refrigerant R evaporated by the high-temperature evaporator 5. The condenser 7 condenses the refrigerant vapor generated in the regenerator 1. Accordingly, an absorption type refrigerating machine wherein a heating medium can be driven in a wide temperature range can be manufactured at a low cost.