초록 ▼

A multiport valve for a water transfer system passes water, drawn by a pump, through a plurality of collectors. A programmable controller controls operation of the pump and a stepper motor which positions the multiport valve in a time series sequence according to user instructions. The multiport val

A multiport valve for a water transfer system passes water, drawn by a pump, through a plurality of collectors. A programmable controller controls operation of the pump and a stepper motor which positions the multiport valve in a time series sequence according to user instructions. The multiport valve is formed with a first valve head having an intake port and multiple separate outlet ports. The respective outlet ports are connected to the respective collectors at respective collector inlets. A first rotor bears against the first valve head and forms a seal between the first rotor and first valve head. The first rotor is formed with a first coupling channel for coupling the intake port of the first valve head to different outlet ports according to the rotational position of the first rotor. The multiport valve incorporates a second valve head formed with an exhaust port and a plurality of separate inlet ports coupled to the respective plurality of collectors at respective collector outlets. A second rotor bears against the second valve head substantially forming a seal between the second rotor and second valve head. The second rotor is formed with a second coupling channel for coupling the exhaust port to different inlet ports according to the rotational position of the second rotor for exhausting water.

대표청구항 ▼

A multiport valve for delivering fluid to a plurality of separate fluid sampling sites having respective fluid sampling inlets and outlets comprising: a first multiport valve head having a fluid intake port, a plurality of at least three different outlet ports coupled respectively to fluid sampling

A multiport valve for delivering fluid to a plurality of separate fluid sampling sites having respective fluid sampling inlets and outlets comprising: a first multiport valve head having a fluid intake port, a plurality of at least three different outlet ports coupled respectively to fluid sampling inlets of the fluid sampling sites, said outlet ports being arranged in a generally circular configuration, and a valve head first distributor bearing against the first multiport valve head for coupling the fluid intake port to different successive outlet ports for delivering fluid to selected fluid sampling sites at selected fluid sampling inlets, said first distributor substantially sealing the other fluid sampling inlets; a second multiport valve head having a fluid exhaust port, a plurality of at least three separate fluid inlet ports coupled respectively to fluid sampling outlets from the fluid sampling sites, said inlet ports being arranged in a generally circular configuration, and a valve head second distributor bearing against the second multiport valve head for coupling the exhaust port to different successive inlet ports for exhausting fluid from selected fluid sampling sites at selected fluid sampling outlets, said second distributor substantially sealing the other fluid outlets to minimize leakage from the other fluid sampling sites; and motor means coordinating the first and second distributors for delivering fluid to and exhausting fluid from the respective fluid sampling sites in a time series sequence.