| 摘要 |
An improvement in apparatus for dispensing mixtures of fluids having different vapor pressures, held under pressure in liquid and gas phases, in uniform proportions, from a pressurized container comprising the conventional elements of a pressure container, a perforated dip-tube extending within the pressure container through the vapor and liquid spaces of the container when charged and terminating in a closed free end in proximity to a wall of the pressure container, and means to provide controlled fluid flow from within the pressure container. The improvement comprises providing a bottom orifice in the dip-tube, substantially at the end of the dip-tube which terminates in the liquid space of the container when charged with fluid, and at least one upper orifice smaller in diameter than the bottom orifice located in the dip-tube at points corresponding to the levels at which from about 10-90 percent volume of the full charge of liquid is present in the pressure container. The apparatus is particularly suited for removing non-azeotropic refrigerant mixtures from pressurized containers in which such mixtures are stored and dispensed.
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