| 摘要 |
A hydrokinetic amplifier 10 uses liquid and vapor input nozzles 11 and 12 discharging into an acceleration chamber 13 downstream from which a diverging diffuser 15 extends. Liquid nozzle 11 forms a free liquid jet 20 that extends for a substantial distance through acceleration chamber 13, and vapor flowing at a much higher speed into acceleration chamber 13 surrounds, impinges on, and condenses into free liquid jet 20. Collapse of the condensing vapor forms a suction into which more vapor flows. Acceleration chamber 13 gradually converges from an ingress region 14 receiving liquid and vapor to an egress region 16 flowing mostly liquid into diffuser 15. Vapor nozzle 12 has a throat region 12a arranged upstream of the discharge region 21 of liquid nozzle 11 and an expanding region 12b extending from throat region 12a downstream toward ingress region 14 of acceleration chamber 13 so that vapor is expanding when it contacts the liquid. The vapor surrounds and travels in the direction of free liquid jet 20 so that substantially more than half of the expanding vapor contacts and condenses in liquid jet 20, transferring momentum energy from the vapor to the liquid to accelerate the liquid toward egress region 16.
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