发明名称 |
Fluid control valve and method for subjecting a liquid to a controlled pressure drop |
摘要 |
A method and apparatus for subjecting a fluid to a controlled pressure drop. Fluid is supplied under pressure with a tangential velocity component to an annular passageway (17). The fluid swirls around the axis of the passageway while flowing axially along the passageway to an outlet (6). A cross section of at least a part of the passageway (17) is adjustable to enable the flow rate to be adjusted for a given pressure loss or the pressure loss to be adjusted for a given flow rate. The outlet (6) includes a second annular passageway (22) surrounding the first annular passageway so that the first annular passageway leads to, and the second annular passageway leads from, a chamber (21) common to the passageways. The second annular passageway is of increasing outer diameter and cross sectional area in the direction of flow from the chamber to the outlet.
|
申请公布号 |
US5605172(A) |
申请公布日期 |
1997.02.25 |
申请号 |
US19940289675 |
申请日期 |
1994.08.11 |
申请人 |
BAKER HUGHES LIMITED |
发明人 |
SCHUBERT, MARK F.;SKILBECK, FRANK |
分类号 |
F16K1/38;(IPC1-7):F16K1/38 |
主分类号 |
F16K1/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|