| 发明名称 |
Flow Control System and Control Valve Having Closure Assistance |
| 摘要 |
A control valve includes a piston-housing having a hollow portion. The hollow portion has a first end, an open end, first and second internal chambers, and a fluid port configured to allow fluid to exit the second chamber. The first chamber is nearer the first end, and the second chamber is nearer the open end. A piston is located within the housing and is adapted for reciprocal motion. The piston includes a first and second seal-engaging portions. The first seal-engaging portion has a diameter that is less than the diameter of the second seal-engaging portion. |
| 申请公布号 |
US2015034179(A1) |
申请公布日期 |
2015.02.05 |
| 申请号 |
US201414450448 |
申请日期 |
2014.08.04 |
| 申请人 |
Daniel Measurement and Control, Inc. |
发明人 |
Loga Thomas Henry;Seiler David J.;Crouch Justin Blake;Zahr Michael Richard Adib;Almazan Raul H. |
| 分类号 |
F16K17/10;F16K15/02 |
主分类号 |
F16K17/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A control valve comprising:
a piston housing comprising a hollow portion having a first end, an open end, first and second internal chambers, and a fluid port configured to allow fluid to exit the second chamber; wherein the first chamber is proximal to the first end, and wherein the second chamber is proximal the open end; a piston disposed within the housing and adapted for reciprocal motion, the piston including a first seal-engaging portion, and a second seal-engaging portion, the first seal-engaging portion having a diameter that is less than the diameter of the second seal-engaging portion. |
| 地址 |
Houston TX US |
