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1. 发明申请

WO1994010457A1 PRESSURE CONTROL VALVE FOR A HYDRAULIC ACTUATOR 审中-公开
标题翻译：液压执行器压力控制阀
公开(公告)号：WO1994010457A1
公开(公告)日：1994-05-11
申请号：PCT/US1993010446
申请日：1993-10-29
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , ROTH, James, F. , ATCHLEY, Raymond, D. , CHEN-ZION, Ori, Dov , PEGRAM, John, B. , GUNDERSON, Maurice, E., P.
IPC分类号： F15B13/043
CPC分类号： F15B13/043 , Y10T137/2322 , Y10T137/87201 , Y10T137/87209 , Y10T137/87225
摘要： A two stage valve assembly (10) responsive to signals from a control system for supplying pressurized fluid to one of two load lines. The first stage (14) includes a torque motor that directs pressurized fluid from a jet pipe toward a receiver assembly having two receiver ports and a bleedoff area disposed between and separating the receiver ports. The second stage assembly includes two spool/sleeve assemblies (18, 20) that control the flow of pressurized fluid to and from the two load lines. The receiver assembly controls the spool/sleeve assemblies (18, 20) such that at most only one of the load lines is pressurized at a time. Cartridges may be inserted in the spool/sleeve assemblies (18, 20) to linearize the relationship between input current from the control system and the output force of an unequal area actuator (200) connected to the load lines.
摘要翻译：响应于来自控制系统的信号的两级阀组件（10），用于将加压流体供应到两个负载管线之一。第一级（14）包括扭矩马达，其将加压流体从喷射管引导到具有两个接收器端口的接收器组件和设置在接收器端口之间的分离区域之间的泄放区域。第二级组件包括两个卷筒/套筒组件（18,20），其控制加压流体流入和流出两个负载线。接收器组件控制卷轴/套筒组件（18,20），使得至少一个负载线一次被加压。墨盒可以插入到卷轴/套筒组件（18,20）中，以使来自控制系统的输入电流与连接到负载线路的不等面积致动器（200）的输出力之间的关系线性化。

2. 发明申请

WO1995013477A1 MULTISTAGE CENTRIFUGAL PUMP WITH CANNED MAGNETIC BEARING 审中-公开
标题翻译：多功能离心泵与CANNED磁性轴承
公开(公告)号：WO1995013477A1
公开(公告)日：1995-05-18
申请号：PCT/US1994012577
申请日：1994-11-03
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , HANSON, Lloyd, D.
IPC分类号： F04D29/04
CPC分类号： F04D29/048 , F04D1/06 , F04D29/041 , F05B2240/51 , F05B2240/52
摘要： A multistage centrifugal pump for increasing the pressure of a product fluid passing through it. The pump includes a casing (12), an impeller shaft (18) mounted for rotation within the casing (12) and a plurality of impellers (28) mounted back-to-back on the impeller shaft. A canned magnetic radial bearing (26) is mounted around the outboard end (22) of the impeller shaft (18) and a magnetic thrust bearing (44) and a magnetic radial bearing (24) are mounted around the drive end (20) of the impeller shaft. The pump is free of any product fluid return line connecting the product fluid chambers at the drive and outboard ends of the shaft.
摘要翻译：一种用于增加通过它的产品流体的压力的多级离心泵。泵包括壳体（12），安装用于在壳体（12）内旋转的叶轮轴（18）和背靠背安装在叶轮轴上的多个叶轮（28）。在叶轮轴（18）的外侧端（22）周围安装有一个固定的磁性径向轴承（26），一个磁性推力轴承（44）和一个磁性径向轴承（24）围绕驱动端（20）安装在叶轮轴。泵没有任何产品流体回流管路连接轴的驱动和外侧端的产品流体室。

3. 发明申请

WO1997004256A1 SPLIT MECHANICAL FACE SEAL AND METHOD OF ASSEMBLY THEREOF 审中-公开
标题翻译：分离机械表面密封及其组装方法
公开(公告)号：WO1997004256A1
公开(公告)日：1997-02-06
申请号：PCT/US1996012071
申请日：1996-07-19
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , MARSI, Joseph, A.
IPC分类号： F16J15/34
CPC分类号： F16J15/3488
摘要： A split mechanical face seal including rotating and stationary split ring holders (56, 96), split rotating and stationary seal faces (78, 136) and a split O-ring (76') having a first end portion (150) which is fully received in a second end portion (152).
摘要翻译：分体机械面密封件，包括旋转和固定的开口环保持器（56,96），分离的旋转和静止的密封面（78,136）和分开的O形环（76'），其具有完全的第一端部（150）接收在第二端部（152）中。

4. 发明申请

WO1993001430A1 DYNAMIC PRESSURE RECOVERY SEAL 审中-公开
标题翻译：动态压力恢复密封
公开(公告)号：WO1993001430A1
公开(公告)日：1993-01-21
申请号：PCT/US1992005546
申请日：1992-07-01
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , HUFFORD, Larry, A.
IPC分类号： F16J15/40
CPC分类号： F04D29/128 , F04D1/12 , F04D29/124 , F16J15/342 , F16J15/406
摘要： A mechanical seal assembly (10) for use in a pump seal chamber (32), through which a pump shaft (12) rotates and in which a process fluid is contained by a stationary seal (16) and a rotating seal (18), converts the velocity head of the circulating process fluid in the seal chamber (32) back to a positive static pressure at the stationary seal and rotating seal faces and ensures a steady film of the process fluid at the seal faces. The mechanical seal assembly converts the velocity head to a positive static pressure through one or more velocity recovery tubes (35) that project outwardly from the pump housing (28) into the sealed chamber (32), or that project outwardly from the rotating seal (18) into the seal chamber (32), and communicate with respective passages (38, 62) through the seals and channel the process fluid to the seal faces.

5. 发明申请

WO1998005889A1 METHOD AND APPARATUS FOR FORMING A WAVY FACE RING 审中-公开
标题翻译：用于形成波浪形环的方法和装置
公开(公告)号：WO1998005889A1
公开(公告)日：1998-02-12
申请号：PCT/US1996012634
申请日：1996-08-02
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , YOUNG, Lionel, A.
IPC分类号： F16J15/34
CPC分类号： B24B1/04 , F16J15/3428
摘要： A wavy face ring having a smooth face and a method of manufacturing this wavy face ring. In particular, the method includes providing a ring blank having a face surface and a peripheral surface and applying a predetermined force to the peripheral surface of the ring. This force deforms the face surface of the ring blank into a first deformation pattern. The face surface of the ring blank is then treated while the force is being applied to the peripheral surface of the ring blank. Finally, the force is removed from the peripheral surface of the ring blank to allow the face surface of the ring to relax and assume a second deformation pattern. A wavy face ring assembly is also provided that includes opposing rings mounted about a rotating shaft. One of the rings is stationary with respect to the other and one of rings has a wavy face treated by a lapping machine. The ring can be a seal ring or a thrust ring.
摘要翻译：具有光滑面的波浪面环和制造该波状面环的方法。特别地，该方法包括提供具有面表面和周边表面的环坯料，并向环的外围表面施加预定的力。该力将环坯的表面变形为第一变形图案。然后在将力施加到环坯的周边表面的同时处理环坯料的表面。最后，将力从环形坯料的外周表面移开，以使环的表面松弛并呈现出第二变形模式。还提供了一种波浪面环组件，其包括围绕旋转轴安装的相对环。其中一个环相对于另一个环是静止的，并且一个环具有由研磨机处理的波浪面。环可以是密封环或推力环。

6. 发明申请

WO1994004827A1 MULTI-STAGE CENTRIFUGAL PUMP INCORPORATING A SEALED THRUST BEARING 审中-公开
标题翻译：密封轴承的多级离心泵
公开(公告)号：WO1994004827A1
公开(公告)日：1994-03-03
申请号：PCT/US1993007758
申请日：1993-08-18
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , FEHLAU, Rudolf
IPC分类号： F04D29/06
CPC分类号： F04D29/445 , F04D1/06 , F04D7/04 , F04D29/0413 , F04D29/061 , F04D29/108 , F04D29/588 , Y10S277/927
摘要： A multi-stage centrifugal pump (11) is described having a linear series of impellers (19) mounted on a common impeller shaft, with axial thrusts imparted to the shaft by the impellers being balanced by a sealed high-pressure thrust bearing (37) assembly secured to the pump casing (13). The pump is particularly suitable for using in pumping an abrasive fluid. A clean lubricating oil is supplied to the thrust bearing (37) assembly at a pressure slightly greater than that of the abrasive pumped fluid, to ensure that the fluid that migrates across a mechanical seal (43) interposed between the impeller assembly and the thrust bearing assembly is the lubricating oil, not the abrasive pumped fluid. High pressure differentials across a breakdown bushing involving the abrasive pumped fluid, and a resulting wear and erosion of pump components, thereby are avoided.
摘要翻译：描述了一种多级离心泵（11），其具有安装在公共叶轮轴上的线性系列叶轮（19），由叶轮赋予轴的轴向推力由密封的高压推力轴承（37）平衡，组件固定到泵壳体（13）上。泵特别适用于泵送磨料液体。清洁的润滑油以稍大于磨料泵送流体的压力被提供给止推轴承（37）组件，以确保穿过机械密封件（43）的流体插入在叶轮组件和止推轴承之间组装是润滑油，不是磨料泵送的流体。避免了涉及磨料泵送流体的击穿衬套的高压差，以及泵部件的磨损和磨损。

7. 发明申请

WO1993010380A1 SECONDARY GAS/LIQUID MECHANICAL SEAL ASSEMBLY 审中-公开
标题翻译：二次气/液体机械密封组件
公开(公告)号：WO1993010380A1
公开(公告)日：1993-05-27
申请号：PCT/US1992009937
申请日：1992-11-10
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , SALANT, Richard , GREEN, Itzhak , HUFFORD, Larry, A. , GILES, Oley
IPC分类号： F16J15/34
CPC分类号： F16J15/3432 , F16J15/008 , Y10S277/914 , Y10S277/929
摘要： A secondary mechanical seal assembly is used on a shaft (12) that is rotatable within a housing (14) to seal both gaseous and liquid medium (20). The assembly (18) includes a stationary seal face element (26) that is fixed relative to the housing and a rotating seal face element (24) that is fixed relative to the shaft (12). One of the seal face element (24-26) back surfaces (34) includes at least one slot (40) configured to produce a wave on the front surface (32) of the seal face element (24-26) when the shaft (12) is rotated. The wave creates an opening force that is sufficient to control wear and prolong seal life when the secondary seal assembly (18) is exposed to a gaseous medium. When exposed to a pressurized liquid medium, the hydrodynamic loading from the liquid medium alters the seal face element (24-26) waviness, and increases the closing force due to the action of the pressurized liquid on the back surface of the seal face elements, such that excessive leakage is prevented.
摘要翻译：第二机械密封组件用于可在壳体（14）内旋转以密封气体和液体介质（20）的轴（12）上。组件（18）包括相对于壳体固定的固定密封面元件（26）和相对于轴（12）固定的旋转密封面元件（24）。密封面元件（24-26）后表面（34）中的一个包括至少一个槽（40），其构造成当轴（24-26）在密封面元件（24-26）的前表面（32）上产生波时 12）旋转。当二次密封组件（18）暴露于气体介质时，该波形产生足以控制磨损并延长密封寿命的打开力。当暴露于加压液体介质时，来自液体介质的流体动力学负载改变了密封面元件（24-26）波纹，并且由于加压液体在密封面元件的后表面上的作用而增加了闭合力，使得防止了过度的泄漏。

8. 发明申请

WO1995020731A1 BACKUP SEAL FOR SEALING BETWEEN A SHAFT AND HOUSING 审中-公开
标题翻译：备用密封在轴和外壳之间密封
公开(公告)号：WO1995020731A1
公开(公告)日：1995-08-03
申请号：PCT/US1995000927
申请日：1995-01-24
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , MARSI, Joseph, A.
IPC分类号： F16J15/00
CPC分类号： F16J15/008 , F16J15/164 , Y10S277/914
摘要： A fluid handling machine having a shaft, a radially disposed housing, and a backup seal. During normal operation, the backup seal is concentric with and radially spaced from the shaft. The backup seal includes a first annular portion located adjacent the backup seal chamber and a second annular portion preferably made of carbon graphite. The backup seal is configured to engage the housing such that when the fluid pressure in the backup seal chamber exceeds a predetermined level, a sufficient axial force is applied to the first annular portion and transmitted therethrough to the second annular portion to cause the second annular portion to close radially into sealing engagement with the shaft.
摘要翻译：一种具有轴，径向设置的壳体和备用密封件的流体处理机。在正常操作期间，备用密封件与轴同心并且与轴径向间隔开。备用密封件包括邻近备用密封室的第一环形部分和优选由碳石墨制成的第二环形部分。备用密封件构造成接合壳体，使得当备用密封室中的流体压力超过预定水平时，足够的轴向力被施加到第一环形部分，并通过其传递到第二环形部分，以使第二环形部分径向闭合与轴的密封接合。

9. 发明申请

WO1994005936A1 ENCLOSURE FOR BRITTLE MECHANICAL SEAL FACE MATERIALS 审中-公开
标题翻译：机械密封面材料外壳
公开(公告)号：WO1994005936A1
公开(公告)日：1994-03-17
申请号：PCT/US1993008311
申请日：1993-09-02
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , MARSI, Joseph, A. , COOK, Milton, E.
IPC分类号： F16J15/34
CPC分类号： F16J15/3464
摘要： A mechanical seal assembly having a rotatable seal ring connected to the shaft and a non-rotatable seal ring connected to the housing. A cylindrical drive ring encircles the rotatable seal ring and an annular shroud is mounted to the cylindrical drive ring and extends from it terminating in an annular lip that is disposed in contacting relationship with the rotatable seal ring adjacent the seal face of the rotatable seal ring. The shroud may be provided with a plurality of circumferentially spaced slots. Means are also provided for moving the end of the shroud toward the non-rotatable seal ring when the shaft moves toward the non-rotatable seal ring.
摘要翻译：机械密封组件，其具有连接到轴的可旋转密封环和连接到壳体的不可转动的密封环。圆柱形驱动环环绕可旋转密封环，并且环形护罩安装到圆柱形驱动环上并从其延伸，终止于环形唇缘，该环形唇缘与可旋转密封环的密封面附近的可旋转密封环设置成接触关系。护罩可以设置有多个周向间隔开的槽。还提供了当轴朝向不可旋转的密封环移动时，将护罩的端部朝着不可旋转的密封环移动的装置。

10. 发明申请

WO1992012366A1 BI-PHASE SEALING ASSEMBLY 审中-公开
标题翻译：双相密封组件
公开(公告)号：WO1992012366A1
公开(公告)日：1992-07-23
申请号：PCT/US1992000147
申请日：1992-01-09
申请人： BW/IP INTERNATIONAL, INC.
发明人： BW/IP INTERNATIONAL, INC. , KEY, William, E. , WANG, George
IPC分类号： F16J15/38
CPC分类号： F16J15/004
摘要： A bi-phase seal assembly (10) for preventing the escape of a fluid which is liquid at pressures above atmospheric and gaseous at atmospheric pressure is proposed which comprises the combination of a mechanical seal (12) and a magnetic fluid seal (14) in tandem. Any escaping gaseous fluid is conducted to a remotely located fluid disposal system, such as a vapor recovery system (48) or a flare (50) to be burned.
摘要翻译：提出了一种双相密封组件（10），其用于防止在大气压力高于大气压并且处于大气压下的液体中的液体的逸出，其包括机械密封件（12）和磁性流体密封件（14）的组合，串联。任何逸出的气体流体被传导到远程定位的流体处理系统，例如蒸汽回收系统（48）或要燃烧的火炬（50）。

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