Patent ID: 7316126

Claim:
An absorption refrigerating machine comprising: an evaporator; an absorber; a condenser; a high-temperature regenerator; a low-temperature regenerator; a low-temperature solution heat exchanger; a solution path through which an absorption solution flows; a refrigerant path through which a refrigerant flows; a first branch solution path and a second branch solution path configured to divide a dilute solution to be introduced from said absorber to said high-temperature regenerator; a first high-temperature solution heat exchanger and a second high-temperature solution heat exchanger operable to perform heat exchange between the dilute solution in said first branch solution path and a concentrated solution heated and concentrated in said high-temperature regenerator; and a drain heat exchanger operable to perform heat exchange between the dilute solution in said second branch solution path and an exhaust heat source which has heated the dilute solution in said high-temperature regenerator, wherein the dilute solution in said first branch solution path flows through said first high-temperature solution heat exchanger and said second high-temperature solution heat exchanger in this order, and the concentrated solution discharged from said high-temperature regenerator flows through said second high-temperature solution heat exchanger and said first high-temperature solution heat exchanger in this order.