Patent ID: 6224681
Filing Date: 2001-05-01
Classification: B01F,C23C,Y10S

Abstract:
A vaporizer for vaporizing a liquid and mixing the vaporized liquid with a carrier gas, the vaporizer comprising:a valve body having a first aperture and a third aperture formed therein, the valve body having a valve seat with a second aperture formed therein;a gas inlet port formed in the valve body and connected to the first aperture through a first fluid channel;a liquid inlet port formed in the valve body and connected to the second aperture through a second fluid channel;a proportional control valve disposed adjacent to and opposite the second aperture and the valve seat to define a volume therebetween, the position of the proportional control valve being continuously adjustable over a continuous range of settings from a fully closed position to a fully open position; andan outlet port of the valve body connected to the third aperture through a third fluid channel.