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    Plasma arc torch providing angular shield flow injection
    7.
    发明授权
    Plasma arc torch providing angular shield flow injection 有权
    等离子弧焊提供角度屏蔽流注射

    公开(公告)号：US08395077B2

    公开(公告)日：2013-03-12

    申请号：US12940722

    申请日：2010-11-05

    申请人： Zheng Duan ,  Stephen M. Liebold ,  Aaron D. Brandt

    发明人： Zheng Duan ,  Stephen M. Liebold ,  Aaron D. Brandt

    IPC分类号： B23K10/00

    CPC分类号： H05H1/34 ,  H05H2001/3457 ,  H05H2001/3478 ,  H05H2001/3484

    摘要： Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular/conical impingement of a fluid (e.g., a shield gas) on an ionized plasma gas flowing through a plasma arc torch. Some of the torch tips described herein include a nozzle with a conical external shape combined with a shield with complementing internal geometry to form the angular fluid flow. As a result, a plasma arc torch including the improved nozzle have the benefits of a stabilized ionized plasma gas flow together with enhanced nozzle cooling and protection from reflecting slag during torch use.

    摘要翻译： 本文所述的等离子弧焊割枪包括具有提供角度屏蔽流注入的改进喷嘴的割炬尖端。 特别地，喷嘴在流过等离子体电弧焰炬的电离等离子体气体上提供流体（例如，保护气体）的角/锥度冲击。 本文所述的一些割炬尖端包括具有锥形外形的喷嘴，其与具有补充内部几何形状的屏蔽结合以形成角流体流。 结果，包括改进的喷嘴的等离子弧焊炬具有稳定的电离等离子体气流的优点，同时具有增强的喷嘴冷却和在割炬使用期间防止反射炉渣的保护。

    Generating discrete gas jets in plasma arc torch applications
    8.
    发明授权
    Generating discrete gas jets in plasma arc torch applications 有权
    在等离子弧焊枪应用中生成离散气体射流

    公开(公告)号：US07598473B2

    公开(公告)日：2009-10-06

    申请号：US11432282

    申请日：2006-05-11

    申请人： David Jonathan Cook ,  Stephen M. Liebold ,  Jon W. Lindsay ,  Zheng Duan

    发明人： David Jonathan Cook ,  Stephen M. Liebold ,  Jon W. Lindsay ,  Zheng Duan

    IPC分类号： H05B1/02

    CPC分类号： B23K10/00 ,  H05H1/34 ,  H05H1/3405 ,  H05H2001/3457 ,  H05H2001/3468 ,  H05H2001/3478

    摘要： The invention is generally directed to a nozzle for a plasma torch, the nozzle having a rear portion that defines at least a portion of a plasma chamber and a front portion that includes a first end and a second end. The first end is adjacent the rear portion, and the second end defines a plasma exit portion. One or more fluid passageways are disposed within the front portion and extend from the first end to the second end. The fluid passageways have passageway exit portions that provide one or more discrete jets of a secondary fluid to surround a plasma jet that is ejected from the plasma exit portion. Features of the invention include faster cutting, thicker workpiece piercing capability, reduced noise, improved arc stability, and increased consumable life, all of which improve productivity associated with plasma arc torch workpiece processing.

    摘要翻译： 本发明总体上涉及一种用于等离子体焰炬的喷嘴，喷嘴具有限定等离子体室的至少一部分的后部，以及包括第一端和第二端的前部。 第一端邻近后部，第二端限定等离子体出口部分。 一个或多个流体通道设置在前部内并且从第一端延伸到第二端。 流体通道具有通道出口部分，其提供一个或多个次级流体的离散射流以包围从等离子体出口部分喷出的等离子体射流。 本发明的特征包括更快的切割，较厚的工件穿孔能力，降低的噪音，改善的电弧稳定性和增加的消耗寿命，这些都提高了与等离子弧焊炬工件加工相关的生产率。

    PLASMA ARC TORCH PROVIDING ANGULAR SHIELD FLOW INJECTION
    9.
    发明申请
    PLASMA ARC TORCH PROVIDING ANGULAR SHIELD FLOW INJECTION 有权
    等离子弧焊提供角膜流动注射

    公开(公告)号：US20110062124A1

    公开(公告)日：2011-03-17

    申请号：US12940722

    申请日：2010-11-05

    申请人： Zheng Duan ,  Stephen M. Liebold ,  Aaron D. Brandt

    发明人： Zheng Duan ,  Stephen M. Liebold ,  Aaron D. Brandt

    IPC分类号： B23K9/00

    CPC分类号： H05H1/34 ,  H05H2001/3457 ,  H05H2001/3478 ,  H05H2001/3484

    摘要： Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular/conical impingement of a fluid (e.g., a shield gas) on an ionized plasma gas flowing through a plasma arc torch. Some of the torch tips described herein include a nozzle with a conical external shape combined with a shield with complementing internal geometry to form the angular fluid flow. As a result, a plasma arc torch including the improved nozzle have the benefits of a stabilized ionized plasma gas flow together with enhanced nozzle cooling and protection from reflecting slag during torch use.

    摘要翻译： 本文所述的等离子弧焊割枪包括具有提供角度屏蔽流注入的改进喷嘴的割炬尖端。 特别地，喷嘴在流过等离子体电弧焰炬的电离等离子体气体上提供流体（例如，保护气体）的角/锥度冲击。 本文所述的一些割炬尖端包括具有锥形外形的喷嘴，其与具有补充内部几何形状的屏蔽结合以形成角流体流。 结果，包括改进的喷嘴的等离子弧焊炬具有稳定的电离等离子体气流的优点，同时具有增强的喷嘴冷却和在割炬使用期间防止反射炉渣的保护。

    Plasma arc torch providing angular shield flow injection
    10.
    发明授权
    Plasma arc torch providing angular shield flow injection 有权
    等离子弧焊提供角度屏蔽流注射

    公开(公告)号：US07829816B2

    公开(公告)日：2010-11-09

    申请号：US11407370

    申请日：2006-04-19

    申请人： Zheng Duan ,  Stephen M. Liebold ,  Aaron D. Brandt

    发明人： Zheng Duan ,  Stephen M. Liebold ,  Aaron D. Brandt

    IPC分类号： B23K10/00

    CPC分类号： H05H1/34 ,  H05H2001/3457 ,  H05H2001/3478 ,  H05H2001/3484

    摘要： Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular/conical impingement of a fluid (e.g., a shield gas) on an ionized plasma gas flowing through a plasma arc torch. Some of the torch tips described herein include a nozzle with a conical external shape combined with a shield with complementing internal geometry to form the angular fluid flow. As a result, a plasma arc torch including the improved nozzle have the benefits of a stabilized ionized plasma gas flow together with enhanced nozzle cooling and protection from reflecting slag during torch use.

    摘要翻译： 本文所述的等离子弧焊割枪包括具有提供角度屏蔽流注入的改进喷嘴的割炬尖端。 特别地，喷嘴在流过等离子体电弧焰炬的电离等离子体气体上提供流体（例如，保护气体）的角/锥度冲击。 本文所述的一些割炬尖端包括具有锥形外形的喷嘴，其与具有补充内部几何形状的屏蔽结合以形成角流体流。 结果，包括改进的喷嘴的等离子弧焊炬具有稳定的电离等离子体气流的优点，同时具有增强的喷嘴冷却和在割炬使用期间防止反射炉渣的保护。