20100219539 | NEGATIVE ION LIQUID MANUFACTURING APPARATUS - Intended is to provide an apparatus, which is small in size and low at cost and which can manufacture a minus-ion generating liquid in a large quantity stably and continuously by a method safer than that of the prior art. In the apparatus, a single-stage reproducing pump comprises a casing having a suction port for sucking a liquid and a discharge port for discharging the liquid sucked from the suction port, an impeller disposed in the casing and forming a multiplicity of blades on the circumference of its disc, and a passage formed in the casing along the outer circumference of that impeller for guiding the liquid sucked from the suction port, to the discharge port. The area normal to the liquid flow direction of the passage becomes narrower from the suction port side to the discharge port side. The single-stage reproducing pump further comprises gas inflow means for feeding hydrogen and oxygen into a pressure liquid midway of the passage, in which the pressure of the liquid is gradually boosted from the suction port side to the discharge port side. | 09-02-2010 |