| 摘要 |
A system for reducing the noise associated with the operation of a hydrokinetic amplifier (10) in which a pressurized gas is introduced into the amplifier in the region of its diffuser (16). In the preferred system, the pressurized gas is introduced into the amplifier at a distance below the minimum cross-sectional area 20 of its mixing chamber 12 no greater than approximately seven times the diameter of the minimum cross-sectional area. The gas is preferably pressurized in the hydrokinetic amplifier itself and delivered to an accumulator or reservoir (21). A control valve (26) permits the pressurized gas to flow into the region of the diffuser only when the hydrokinetic amplifier is operating. In the preferred system, the valve is responsive to the pressure of the liquid output of the hydrokinetic amplifier. |
