发明名称 |
SUB-SEA VALVE ACTUATOR |
摘要 |
<p>The coupling between a sub-sea pipeline valve and its actuator is brought about by the adoption of a device (4) associated rigidly with the housing of the valve and provided with a hollow shaft (6) into which the valve shaft is keyed. The top of the hollow shaft affords a ring of dogs (7) designed to engage matching dogs (8) carried by a sleeve (9) driven by the pistons of the hydraulic actuator through a mechanical linkage, so that the movement which opens and closes the valve is transmitted through an easily coupled and decoupled dog-clutch; the stationary part of the device (4) is provided with torque reaction lugs (20, 21) which occupy sockets (22) formed in the casing of the actuator.</p> |
申请公布号 |
CA2010746(C) |
申请公布日期 |
1994.11.29 |
申请号 |
CA19902010746 |
申请日期 |
1990.02.22 |
申请人 |
BIFFI ITALIA S.R.1. |
发明人 |
ZILIANA, RINO;ZIVERI, GIUSEPPE;PELLINGHELLI, FERRUCCIO |
分类号 |
F15B15/06;E21B34/04;E21B41/04;F16K31/12;F16K31/163;F16K31/54;(IPC1-7):F16K31/163 |
主分类号 |
F15B15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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