发明公开
EP0421796A3 Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas
失效 - 权利终止
基本信息:
- 专利标题： Method & apparatus for spraying a liquid coating containing supercritical fluid or liquified gas
- 专利标题（中）：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
- 申请号：EP90310894.2 申请日：1990-10-04
- 公开(公告)号：EP0421796A3 公开(公告)日：1991-11-27
- 发明人： Hastings, Donald R. , Hendricks, John A.
- 申请人： NORDSON CORPORATION
- 申请人地址： 28601 Clemens Road Westlake Ohio 44145-1148 US
- 专利权人： NORDSON CORPORATION
- 当前专利权人： NORDSON CORPORATION
- 当前专利权人地址： 28601 Clemens Road Westlake Ohio 44145-1148 US
- 代理机构： Allen, Oliver John Richard
- 优先权： US416855 19891004
- 主分类号： B05B5/03
- IPC分类号： B05B5/03 ; B05B9/03 ; B05B5/16 ; B05B12/08
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.
公开/授权文献:
IPC结构图谱:
| B | 作业；运输 |
| --B05 | 一般喷射或雾化；对表面涂覆液体或其他流体的一般方法 |
| ----B05B | 喷射装置；雾化装置；喷嘴 |
| ------B05B5/00 | 静电喷射装置；能使喷雾带电的喷射装置；用其他的电手段来喷射液体或其他流体的装置 |
| --------B05B5/025 | .放电装置，例如电子喷枪 |
| ----------B05B5/03 | ..以使用气体为特征 |