초록 ▼

A dosing device for regulating the concentration of a liquid vapor, produced by vaporizing liquid from a liquid source, in a carrier gas has on-off valve which is automatically operable by a valve controller and which is connectable to one or both of the liquid and the carrier gas. A flow meter is p

A dosing device for regulating the concentration of a liquid vapor, produced by vaporizing liquid from a liquid source, in a carrier gas has on-off valve which is automatically operable by a valve controller and which is connectable to one or both of the liquid and the carrier gas. A flow meter is provided in the flow path of the liquid and generates an output signal proportional to the flow of the liquid supplied for vaporization. This signal is supplied to the controller which cooperates with the valve to automatically regulate the supply of one or both of the liquid or carrier gas dependent on the output signal.

대표청구항 ▼

[ I claim as my invention:] [1.]1. In a vaporizer for use with a liquid source and a carrier gas source, said vaporizer having a first inlet adapted for connection to said liquid source and a second inlet adapted for connection to said carrier gas source, and a vaporizing chamber wherein liquid from

[ I claim as my invention:] [1.]1. In a vaporizer for use with a liquid source and a carrier gas source, said vaporizer having a first inlet adapted for connection to said liquid source and a second inlet adapted for connection to said carrier gas source, and a vaporizing chamber wherein liquid from said liquid source is vaporized, as vaporized liquid, in carrier gas from said carrier gas source, the improvement, comprising:flow path defining structure for creating a flow path communicating with said first inlet and an interior of said vaporizing chamber, said flow path being adapted to contain liquid received from said liquid source;an adjustable liquid flow valve disposed in said flow path;a flow meter disposed in said flow path which generates an output signal proportional to a flow of said liquid in said flow path before vaporization of said liquid; anda controller operably connected to said flow meter and receiving said output signal therefrom and operably connected to said valve for operating said valve to regulate a supply of said liquid in said flow path from said first inlet to said interior of said vaporizing chamber dependent on said signal from said flow meter.