| 摘要 |
<p>An orange juice dispensing system including a peristaltic pump (26) driven by a d.c. motor (28) for pumping concentrate through a concentrate conduit (12) to a mixing chamber (16) of a dispensing valve (18), a water line (14) for feeding water to the mixing chamber and including a flow meter (40) and a motorized control valve (42) therein, sensors (30) connected to the pump for sensing concentrate flow rate, and a microcontroller (32)receiving signals from the pump sensors and the water flow meter for controlling the mixture ratio and flow rate by controlling the motorized control valve in the water line and the d.c. motor connected to the concentrate pump. The concentrate is preferably contained in a non-returnable, plastic, semi-rigid container (22).</p> |
