| 摘要 |
A liquid dispensing system, comprising a liquid filled reservoir, a control microprocessor, and a plurality of outlets connected to the reservoir. A filter may be provided between the reservoir and the outlets for filtering the liquid. A valve provided with each outlet controls flow through the outlet. Each valve is individually controlled by the processor so that each outlet can be selected individually. The processor is adapted to receive a signal signifying a demand for liquid from a particular outlet. On reception of the demand, a selected valve is opened responsive to a signal from the processor while other valves remain closed, allowing liquid dispensing through only the selected outlet. An orifice included with each outlet and a predetermined pressure applied to the liquid sensed adjacent the selected outlet controls the rate of flow through the selected outlet. The controller provides a signal to the selected valve at the end of a predetermined time period to close the valve. The time period together with the rate of flow allows a specific amount of liquid to be dispensed. A plurality of inlets connect with the reservoir. Each inlet is connected to a separate liquid supply. When a low liquid level is sensed in the reservoir and dispensing is not in process, an inlet is selected, opened and the reservoir is filled. When the processor detects that the reservoir is not filled after a predetermined time, another inlet is selected, opened and the reservoir continues filling until a predetermined level is reached.
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