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1.发明授权Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas 失效用于喷射超临界流体或涂布液是含有液化气体的方法和装置。
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2.发明公开Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas 失效用于喷涂含超临界流体或液化气体的液体涂料的方法和装置
公开(公告)号：EP0421796A3
公开(公告)日：1991-11-27
申请号：EP90310894.2
申请日：1990-10-04
申请人： NORDSON CORPORATION
摘要： A method and apparatus for spraying liquid coating material containing supercritical fluid or liquified gas as a diluent comprises a spray gun having internal passages which transmit the liquid coating material under high pressure from an inlet (64) to a nozzle (50) at the tip of the gun (14) and then to an outlet (66) so that the liquid coating material can be continuously recirculated. A relatively short flow discharge path is formed between the internal passages in the spray gun (14) and the nozzle (50) to avoid the formation of an area of ambient or reduced pressure so that the supercritical fluid of liquified gas is substantially maintained in solution in the liquified coating until it is discharged from the gun (14). A pressure regulator (128) is provided to maintain a substantially constant pressure drop across the inlet (64) and outlet (66) of the gun (14) to induce flow of liquid coating material through the gun (14), and to permit several guns (14) to be connected in series without creating a substantial pressure drop therebetween.
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3.发明公开Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas 失效用于喷射超临界流体或涂布液是含有液化气体的方法和装置。
公开(公告)号：EP0421796A2
公开(公告)日：1991-04-10
申请号：EP90310894.2
申请日：1990-10-04
申请人： NORDSON CORPORATION
摘要： A method and apparatus for spraying liquid coating material containing supercritical fluid or liquified gas as a diluent comprises a spray gun having internal passages which transmit the liquid coating material under high pressure from an inlet (64) to a nozzle (50) at the tip of the gun (14) and then to an outlet (66) so that the liquid coating material can be continuously recirculated. A relatively short flow discharge path is formed between the internal passages in the spray gun (14) and the nozzle (50) to avoid the formation of an area of ambient or reduced pressure so that the supercritical fluid of liquified gas is substantially maintained in solution in the liquified coating until it is discharged from the gun (14). A pressure regulator (128) is provided to maintain a substantially constant pressure drop across the inlet (64) and outlet (66) of the gun (14) to induce flow of liquid coating material through the gun (14), and to permit several guns (14) to be connected in series without creating a substantial pressure drop therebetween.
摘要翻译： 一种用于喷涂液体涂层材料含有超临界流体或液化气体作为稀释剂包括具有尖端哪个发射下从喷嘴高压到入口（64）的液体涂层材料的内部通道至（50）中的喷枪的方法和装置 喷枪（14），然后在出口（66）象液体涂层材料可以被连续地再循环。 相对较短的流放电路径在喷枪（14）和所述喷嘴（50）的内部通道之间形成，以避免环境或减压下的区域的形成，所以没有液化的气体的超临界流体基本上保持在溶液 在液化的包裹直到它从喷枪14喷出。 的压力调节器（128）被提供给维持横跨枪（14）通过喷枪（14），以诱导液体涂层材料的流动的入口（64）和出口（66）的大致恒定的压降，并允许几个 枪（14）被串联连接，而不之间产生相当大的压力降在那里。
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公开(公告)号：EP0626208B1
公开(公告)日：1998-11-25
申请号：EP94302207.9
申请日：1994-03-28
申请人： NORDSON CORPORATION
CPC分类号： B05B5/0531 , B05B5/10
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5.发明公开
公开(公告)号：EP0626208A1
公开(公告)日：1994-11-30
申请号：EP94302207.9
申请日：1994-03-28
申请人： NORDSON CORPORATION
CPC分类号： B05B5/0531 , B05B5/10
摘要： An improved power supply (5) for an electrostatic spray gun having a voltage multiplier circuit (12) adjusts to variations in the output load conditions of the multiplier circuit (12) and dynamically modifies the operational loadline of the multiplier circuit (12) in order to maintain optimal operating conditions for the spray gun notwithstanding output load variations. The power supply (5) utilizes a loadline manipulation circuit (16) coupled to a feedback circuit (14) that monitors the output load, and the manipulation circuit (16), in response to a feedback signal from the feedback circuit (14) that is proportional to the output load, varies the input voltage level to the multiplier circuit (12) to modify the loadline of the power supply (5) in response to varying load conditions. The manipulator means (16) of the power supply (5) has memory means (29) to store a variety of external commands which will control the manipulation means (16) and a user interface (25) to enter the external commands into the memory (29). The power supply (5) also comprises a voltage limiting circuit (60) coupled to the output of the multiplier circuit (12) which regulates the output voltage level of the multiplier circuit (12) so that when the output load current increases above a predetermined maximum level the output voltage is reduced to reduce the high voltage stress on the multiplier circuit (12) and high voltage circuitry and reduce the amount of insulation that must surround the multiplier circuit (12) and high voltage circuitry of the power supply (5) in order to insulate it from ground potential.
摘要翻译： 用于具有电压倍增器电路（12）的静电喷枪的改进的电源（5）根据乘法器电路（12）的输出负载条件的变化进行调节，并按顺序动态地修改乘法器电路（12）的工作负载线 以保持喷枪的最佳操作条件，尽管输出负载变化。 电源（5）利用耦合到监视输出负载的反馈电路（14）的负载线路操作电路（16）和操纵电路（16），响应于来自反馈电路（14）的反馈信号， 与输出负载成比例，将输入电压电平改变到乘法器电路（12），以根据变化的负载条件修改电源（5）的负载线。 电源（5）的操纵装置（16）具有存储装置（29），用于存储将控制操纵装置（16）和用户界面（25）的各种外部命令，以将外部命令输入到存储器 （29）。 电源（5）还包括耦合到乘法器电路（12）的输出的电压限制电路（60），其调节乘法器电路（12）的输出电压电平，使得当输出负载电流增加到高于预定值 降低输出电压的最大电平以减小乘法器电路（12）和高压电路上的高电压应力，并减少必须围绕乘法器电路（12）和电源（5）的高压电路的绝缘量， 以使其与地面潜力隔离。
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公开(公告)号：EP0626208B2
公开(公告)日：2004-09-29
申请号：EP94302207.9
申请日：1994-03-28
申请人： NORDSON CORPORATION
CPC分类号： B05B5/0531 , B05B5/10
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公开(公告)号：EP0626209A1
公开(公告)日：1994-11-30
申请号：EP94302499.2
申请日：1994-04-08
申请人： NORDSON CORPORATION
发明人： Hendricks, John A.
CPC分类号： B05B5/0531 , B05B5/10
摘要： An improved power supply (5) for an electrostatic spray gun having a voltage multiplier circuit (12). The power supply (5) also comprises a voltage limiting circuit (60) coupled to the output of the multiplier circuit (12) which regulates the output voltage level of the multiplier circuit (12) so that when the output load current increases above a predetermined maximum level the output voltage is reduced to reduce the high voltage stress on the multiplier circuit (12) and high voltage circuitry and reduce the amount of insulation that must surround the multiplier circuit (12) and high voltage circuitry of the power supply (5) in order to insulate it from ground potential.
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