GAS FLOW RATE REGULATOR FOR JOULE-THOMSON EFFECT COOLER

摘要

Gas flow rate regulator for Joule-Thomson effect cooler, associated with a cryostat, characterized in that the bimetallic needle (4) and (4bis) is internal and coaxial with respect to the tubular element (1) inside which it slides, in that the cool end of the cylindrical/conical needle is comprised of three longitudinally directed calibrated grooves, in that the hot end of the needle (4bis) is mechanically fixed at a point outside the effect of the cool area, in that the elements (1, 4, 4bis) contribute each in part to the flow rate regulation, in that the flow rate adjustment results from the positioning of the element (1) with respect to the element (5).