公开(公告)号：US20070044461A1

公开(公告)日：2007-03-01

申请号：US11214269

申请日：2005-08-29

申请人： Wade Burdick ,  Gary Bowman ,  Jeffrey Stewart

发明人： Wade Burdick ,  Gary Bowman ,  Jeffrey Stewart

IPC分类号： F16D31/02

CPC分类号： F15B1/022

摘要： An electro hydraulic actuator with built-in fail safes is provided. Multiple accumulators are integrated into the actuator to improve reliability and redundancy. One or more accumulators can fail and the remaining accumulators provide sufficient energy to move the actuator to its fail-safe condition.

摘要翻译： 提供具有内置故障保险箱的电动液压执行机构。 多个蓄能器集成到执行器中，以提高可靠性和冗余性。 一个或多个蓄电池可能失效，剩余的蓄电池提供足够的能量来将执行器移动到其故障安全状态。

公开(公告)号：US20070120084A1

公开(公告)日：2007-05-31

申请号：US11288756

申请日：2005-11-29

申请人： Steven Stumbo ,  Kevin Greeb ,  Wade Burdick

发明人： Steven Stumbo ,  Kevin Greeb ,  Wade Burdick

IPC分类号： F16K31/44

CPC分类号： F16K41/003 ,  F16J15/004 ,  F16J15/008 ,  F16J15/406

摘要： A redundant sealing system with secondary containment for preventing leakage of fluid along a valve shaft is provided. The system comprises a first set of dynamic seals, a second set of dynamic seals, an auxiliary barrier fluid chamber, and a barrier fluid indicator. The first and second set of dynamic seals are in spaced relation to each other a distance equal to or further than a maximum stroke length of an actuatable valve stem. The auxiliary barrier fluid chamber is interposed between the first and second sets of dynamic seals. The barrier fluid indicator has a piston in a primary barrier fluid chamber. A first face of the piston is exposed to a process fluid. A second face of the piston is exposed to a barrier fluid and inhibited from fluid communication with the auxiliary barrier fluid chamber by a dynamic seal in the first set of dynamic seals.

摘要翻译： 提供一种具有二次容纳的冗余密封系统，用于防止流体沿着阀轴泄漏。 该系统包括第一组动态密封件，第二组动态密封件，辅助屏障流体室和阻挡液体指示器。 第一和第二组动态密封件彼此间隔开距离等于或大于可致动阀杆的最大行程长度的距离。 辅助屏障流体室介于第一和第二组动态密封件之间。 阻挡流体指示器在主屏障流体室中具有活塞。 活塞的第一面暴露于过程流体。 活塞的第二面暴露于阻挡流体，并通过第一组动态密封件中的动态密封而阻止与辅助屏障流体室的流体连通。

公开(公告)号：US20070085279A1

公开(公告)日：2007-04-19

申请号：US11539216

申请日：2006-10-06

申请人： Wade Burdick ,  Gary Bowman

发明人： Wade Burdick ,  Gary Bowman

IPC分类号： F16K31/44

CPC分类号： F16J15/004 ,  F16J15/406 ,  F16K41/04

摘要： A dynamic sealing arrangement for preventing leakage of a fluid along a shaft includes multiple seals and pressurized barrier sealant is presented. According to one aspect, at least three seals are arranged along the shaft with pressurized barrier sealant between the first and second seals and a collection area is provided between the second and third seals to collect any leakage that might occur. Collected leakage, if any, is ported to an output port. According to another aspect, a unitary seal block member is provided that supports the dynamic sealing arrangement for the shaft and defines a piston chamber and a drilled passageway connecting the piston chamber and barrier sealant pressurization chamber between two seals. A substantial amount of plumbing is self contained in a single body minimizing the need for additional components or complexity.

摘要翻译： 用于防止流体沿着轴泄漏的动态密封装置包括多个密封件，并呈现加压隔离密封剂。 根据一个方面，在第一和第二密封之间沿着轴设置至少三个密封件，并具有加压的阻隔密封剂，并且在第二和第三密封件之间设置收集区域以收集任何可能发生的泄漏。 收集的泄漏（如果有的话）被移植到输出端口。 根据另一方面，提供了一体的密封块构件，其支撑用于轴的动态密封装置，并且限定了活塞室和钻井通道，其将活塞室和阻隔密封剂加压室连接在两个密封件之间。 大量的管道是独立的，可以最大程度地减少对额外部件或复杂性的需求。