ADJUSTABLE THROTTLING DEVICE Russian patent published in 2003 - IPC

FIELD: liquid refrigerant flowrate and boiling temperature control. SUBSTANCE: adjustable throttling device has body with inlet and outlet branch pipes for liquid refrigerant and steam-liquid mixture, respectively. Fixed capillary tube is connected to outlet branch pipe. Mounted in tandem in device are perforated tube, guide tube that enclosed perforated tube from outside, and movable capillary tube coupled through nozzle with guide tube and inserted in fixed guide tube. External magnetic coil is mounted on body. Magnetic coil and supporting ring are mounted on guide tube. Supporting ring rests on spring. Ducts provided in body communicate with steam space between body and fixed capillary tube and with steam outlet branch pipe, respectively. EFFECT: enlarged flowrate and boiling temperature control range. 3 dwg