Resumen
The invention describes an expansion, absorption and compression device (1) for absorption machines, comprising: an inlet cavity (2), having a vapor-phase refrigerant inlet (3) and a converging nozzle (4) of concentrated solution inlet; a mixing groove (5) contiguous with the inlet cavity and coaxial with the converging nozzle (4), which has a smaller passage area than that of the inlet cavity (2); and a diffuser (6) adjacent to the throat (5), comprising a first portion (6a) of increasing passage area and a second portion (6b) of passage area greater than the passage area of the throat (5). In addition, this device (1) allows to control the flow of concentrated solution emitted by the converging nozzle (4) opening and closing alternately and completely its outlet end. (Machine-translation by Google Translate, not legally binding)