| 摘要 |
A vaporizer-regulator device is which liquid fuel intended for use in an internal combustion engine is vaporized by an electrically energized heating element. The liquid fuel is contained in a reservoir in which a constant fuel level is maintained during operation by inlet and outlet floats. The outlet float senses a rise in fluid level, operating a contact switch, cutting the electrical current to the heating element, and opening a reservoir outlet drain. The inlet float senses a lowering of fuel level and causes fresh fuel to be injected into the reservoir. In this manner, heating element temperature and reservoir fluid level is controlled during engine operation. The liquid fuel is fed by hydrostatic pressure into a vaporizing chamber and brought into contact with the heating element. The dry fuel vapor thus produced is drawn through a two stage control valve into an expansion chamber. It is then drawn through a duct into an annular or spud-in nozzle, attached to a carburetor venturi mouth, mixing with air to form a combustable mixture. The two stage control valve displacement, correctly metering the dry fuel vapor into the expansion chamber, is caused by either a vacuum operated diaphragm or a throttle linkage controlled cam.
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