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1. 发明授权

US06752686B1 Method and apparatus for fluid jet formation 有权
标题翻译：流体射流形成的方法和装置
公开(公告)号：US06752686B1
公开(公告)日：2004-06-22
申请号：US09919646
申请日：2001-07-31
申请人： Mohamed A. Hashish , Steven J. Craigen , Felice M. Sciulli , Yasuo Baba
发明人： Mohamed A. Hashish , Steven J. Craigen , Felice M. Sciulli , Yasuo Baba
IPC分类号： B24L504
CPC分类号： B26F3/004 , B24C5/04 , Y10T83/0591 , Y10T83/2109
摘要： A method and apparatus for controlling the coherence of a high-pressure fluid jet directed toward a selected surface. In one embodiment, the coherence is controlled by manipulating a turbulence level of the fluid forming the fluid jet. The turbulence level can be manipulated upstream or downstream of a nozzle orifice through which the fluid passes. For example, in one embodiment, the fluid is a first fluid and a secondary fluid is entrained with the first fluid. The resulting fluid jet, which includes both the primary and secondary fluids, can be directed toward the selected surface so as to cut, mill, roughen, peen, or otherwise treat the selected surface. The characteristics of the secondary fluid can be selected to either increase or decrease the coherence of the fluid jet. In other embodiments, turbulence generators, such as inverted conical channels, upstream orifices, protrusions and other devices can be positioned upstream of the nozzle orifice to control the coherence of the resulting fluid jet.
摘要翻译：一种用于控制朝向选定表面的高压流体射流的相干性的方法和装置。在一个实施例中，通过操纵形成流体射流的流体的湍流水平来控制相干性。可以在流体通过的喷嘴孔的上游或下游操纵湍流水平。例如，在一个实施例中，流体是第一流体，并且第二流体与第一流体夹带。包括主流体和次流体的所得流体射流可以被引向选定的表面，以便切割，研磨，粗糙化，喷涂或以其它方式处理所选择的表面。可以选择二次流体的特性来增加或减少流体射流的相干性。在其他实施例中，湍流发生器，例如倒锥形通道，上游孔，突起和其它装置可以位于喷嘴孔的上游，以控制所得流体射流的相干性。

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