| 发明名称 |
BACK PRESSURE REGULATION |
| 摘要 |
The invention generally provides a dynamic back pressure regulator. In exemplary embodiments, the back pressure regulator includes an inlet, an outlet, a seat disposed between the inlet and the outlet and defining at least part of a fluid pathway, and a needle displaceable relative to the seat to form a restriction region therebetween for restricting fluid flow between the inlet and the outlet. In some embodiments, the needle can be formed of a chemically resistant ceramic or have a metal plating to provide corrosion and/or erosion resistance. |
| 申请公布号 |
US2015027567(A1) |
申请公布日期 |
2015.01.29 |
| 申请号 |
US201314382602 |
申请日期 |
2013.03.04 |
| 申请人 |
Waters Technologies Corporation |
发明人 |
Shreve Joshua A.;Auclair John M.;Keenan Paul;Denecke Edwin;Wisser Gerald;Bates Edward;Berthiaume Eugene;Bower Michael |
| 分类号 |
F16K1/52;F16K15/06;F16K25/04 |
主分类号 |
F16K1/52 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A dynamic back pressure regulator comprising:
an inlet, an outlet, a seat disposed between the inlet and the outlet and defining at least part of a fluid pathway; a needle displaceable relative to the seat to form a restriction region therebetween for restricting fluid flow between the inlet and the outlet, wherein the needle is formed of a chemically resistant ceramic. |
| 地址 |
Milford MA US |
