Device and Method for Hydrodynamic Surface Cleaning Based on Micro-Hydropercussion Effect
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United States of America Patent
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Oct 17, 2019
app pub date -
Jun 25, 2019
filing date -
Dec 26, 2016
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Abstract
A nozzle for hydrodynamic cleaning has a form form of a flow passage with a profile formed by an inlet confuser, a resonance chamber and a diffuser arranged in axial alignment and interconnected in series. The confuser and the diffuser are connected via the resonance chamber, which has a form of a flow-over lip. The ratio of the cross-sectional area at the confuser outlet and the cross-sectional area at the opening of the resonance chamber forming the flow-over lip is 1.5 to 10.0. The preferred ratio of the resonance chamber surface area and the cross-sectional area at the opening of the resonance chamber is 0.05 to 40.0. The diffuser can comprise means for additional supply of fluid, gas or particulates. Impact is performed through a fluid jet flowing from a nozzle of the working member in a fluid or a gaseous medium.
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