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ARRANGEMENTS FOR INTERMEDIATE EQUIPMENT OF SMALL VEHICLES, SECTION H 2O 2
ARRANGEMENTS FOR INTERMEDIATE EQUIPMENT OF SMALL VEHICLES, SECTION H 2O 2
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机译:H 2O 2部分中小型车辆中间设备的布置
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摘要
In an apparatus for the pulsewise dispensing of very small amounts of liquid controlled with a measuring instrument comprising an ejecting device for the pulsewise ejection of a desired amount of liquid, a pump is provided for supplying liquid to the vessel from a reservoir. The pump includes a neck portion having an inlet at the bottom thereof and a foot portion, with at least the foot portion immersed in a liquid contained in the reservoir. The foot portion has a volume at least as great as the refill volume of the measuring vessel and a feedline to the measuring vessel is disposed within the neck portion and terminates in proximity to the bottom of the foot portion. A check valve opens and closes the foot portion inlet by means of compressed gas which is controllable by sensing devices at the measuring vessel.
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