| 发明名称 |
VENT VALVE AND METHOD OF USE |
| 摘要 |
A vent valve comprises a valve housing defining a vent port and a valve member mounted within the housing so as to define a fluid system chamber and an activation chamber with the housing. The valve member is biased towards a closed position, in which fluid communication between the fluid system chamber and the vent port is prevented, by fluid pressure within the fluid system chamber acting on the valve member. The valve member is biased towards an open position, in which there is fluid communication between the fluid system chamber and the vent port, by fluid pressure within the activation chamber acting on the valve member. The vent valve further comprises a pressure limiting arrangement associated with the activation chamber to limit pressure therein to a predetermined pressure value. |
| 申请公布号 |
US2015285392(A1) |
申请公布日期 |
2015.10.08 |
| 申请号 |
US201514669442 |
申请日期 |
2015.03.26 |
| 申请人 |
Weatherford U.K. Limited |
发明人 |
Hunt Robert Andrew;Read Kevin |
| 分类号 |
F16K17/06 |
主分类号 |
F16K17/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A vent valve, comprising:
a valve housing defining a vent port; a valve member mounted within the housing so as to define a fluid system chamber and an activation chamber with the housing, wherein;
the valve member is biased towards a closed position, in which fluid communication between the fluid system chamber and the vent port is prevented, by fluid pressure within the fluid system chamber acting on the valve member; andthe valve member is biased towards an open position, in which there is fluid communication between the fluid system chamber and the vent port, by fluid pressure within the activation chamber acting on the valve member; and the vent valve further comprising a pressure limiting arrangement associated with the activation chamber to limit pressure therein to a predetermined pressure value. |
| 地址 |
Leicestershire GB |
