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1.发明申请公开(公告)号：US20180038488A1
公开(公告)日：2018-02-08
申请号：US15229704
申请日：2016-08-05
IPC分类号： F16J15/43
CPC分类号： F16J15/43 , F16J15/3444 , F16J15/346 , F16J15/3492
摘要： A method and system for actively controlling an axial separation between a seal face of a stationary ring and a seal face of a rotating ring of a gas seal is disclosed. At least one property is sensed indicative of a condition of at least one of the seal faces. With at least one sensing device, a characteristic of the axial separation between the seal faces is sensed. A net magnetic force of at least one magnetic device is adjusted based on the property and/or the characteristic. Adjusting the net magnetic force adjusts the axial separation between the seal faces. Without using a buffer gas between the seal faces, flow of gas or other fluid is controlled between the seal faces by adjusting the axial separation.
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公开(公告)号：US20180017166A1
公开(公告)日：2018-01-18
申请号：US15649206
申请日：2017-07-13
申请人： Magnetic Seal Corp.
发明人： Paul Richard Ryan
CPC分类号： F16J15/3436 , F16J15/002 , F16J15/3252 , F16J15/3268 , F16J15/3412 , F16J15/3416 , F16J15/3444
摘要： The rotary face seal with magnet loading replaces known spring mechanisms with magnetic technology that provides a consistent load with minimal variation, which is not affected by natural frequency and material fatigue due to cyclic loading. This improves seal performance and service life by eliminating the issues that compromise the effectiveness of conventional spring mechanisms. The repelling pusher magnetic technology is advantageous because it replaces the spring mechanism within a self-contained stationary cartridge with a pusher type magnetic assembly configuration that enable exact drop-in replacement of existing seal configurations.
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公开(公告)号：US20160298768A1
公开(公告)日：2016-10-13
申请号：US15100641
申请日：2014-12-02
IPC分类号： F16J15/26
CPC分类号： F16J15/26 , F16J15/3444
摘要： The invention relates to a sealing assembly (1) for sealing a piston rod (2) of a piston compressor, which piston rod extends in an axial direction (A) and can be moved back and forth in the axial direction (A). Said sealing assembly (1) comprises at least one packing chamber (4), wherein the packing chamber (4) is bounded in the axial direction (A) by a first and a second side wall (5, 6), wherein at least one sealing ring (7) or one scraping ring (8) and a spring device (9) are arranged in the packing chamber (4), and wherein a spring device (9) and at least one sealing ring (7) or one scraping ring (8) are arranged one after the other in the axial direction (A) proceeding from the first side wall (5), wherein the sealing ring (7) or the scraping ring (8) lies against the second side wall (6), and wherein the spring device (9) is designed as a magnetic spring and consists of two assemblies (9a, 9b) spaced apart in the axial direction (A), a first assembly (9a) and a second assembly (9b), wherein each assembly (9a, 9b) comprises at least one magnet (10a, 10b), and wherein the magnets (10a, 10b) are arranged in the two assemblies (9a, 9b) in a mutually matched manner in such a way that the two assemblies (9a, 9b) repel each other.
摘要翻译： 本发明涉及一种用于密封活塞式压缩机的活塞杆（2）的密封组件（1），活塞杆沿轴向方向（A）延伸并可沿轴向方向（A）前后移动。 所述密封组件（1）包括至少一个填料室（4），其中所述填料室（4）通过第一和第二侧壁（5,6）在轴向方向（A）上限定，其中至少一个 密封环（7）或一个刮环（8）和弹簧装置（9）布置在填料室（4）中，其中弹簧装置（9）和至少一个密封环（7）或一个刮环 （8）沿着从第一侧壁（5）前进的轴向（A）一个接一个布置，其中密封环（7）或刮环（8）位于第二侧壁（6）上， 并且其中所述弹簧装置（9）被设计为磁性弹簧，并且包括沿轴向方向（A）间隔开的两个组件（9a，9b），第一组件（9a）和第二组件（9b），其中每个 组件（9a，9b）包括至少一个磁体（10a，10b），并且其中磁体（10a，10b）以相互匹配的方式布置在两个组件（9a，9b）中，使得两个 组件（9a，9b）彼此排斥。
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公开(公告)号：US08038155B2
公开(公告)日：2011-10-18
申请号：US11775280
申请日：2007-07-10
申请人： Xiaoqing Zheng , Gerard M. Berard
发明人： Xiaoqing Zheng , Gerard M. Berard
CPC分类号： F16J15/3444
摘要： A non-contacting rotary face seal assembly includes a first sealing member, including a first sealing face and a first magnetic element; and a second sealing member, including a second sealing face and a second magnetic element. The first and second magnetic elements of the first and second sealing members provide a magnetic repulsion force between the first and second magnetic elements such that the magnetic repulsion force separates the first and second sealing faces before hydrodynamic or hydrostatic forces associated with rotation of the second sealing member become sufficient to prevent the first and second sealing faces from contacting.
摘要翻译： 非接触式旋转面密封组件包括第一密封构件，包括第一密封面和第一磁性元件; 以及包括第二密封面和第二磁性元件的第二密封构件。 第一和第二密封构件的第一和第二磁性元件在第一和第二磁性元件之间提供磁性排斥力，使得磁性排斥力在与第二密封件的旋转相关联的流体动力学或静水力之前分离第一和第二密封面 构件变得足以防止第一和第二密封面接触。
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公开(公告)号：US07722050B2
公开(公告)日：2010-05-25
申请号：US10520688
申请日：2003-07-08
申请人： Alan Roddis
发明人： Alan Roddis
IPC分类号： F16J15/54
CPC分类号： F16J15/3444
摘要： A mechanical seal has an axially floating seal face (21) in sliding contact with an axially stationary seal face (22). A biasing means (33), such as a magnet, biases the floating seal face towards the stationary seal face. The axially floating seal face and the biasing means are rotationally fixed relative to each other and the axially stationary seal face is free to rotate relative to the axially floating seal face. The seal may be used, for instance, as a bearing protector or isolator.
摘要翻译： 机械密封件具有与轴向固定的密封面（22）滑动接触的轴向浮动密封面（21）。 诸如磁体的偏置装置（33）将浮动密封面朝向固定的密封面偏压。 轴向浮动的密封面和偏压装置相对于彼此旋转地固定，并且轴向固定的密封面相对于轴向浮动的密封面自由旋转。 密封件可以用作例如轴承保护器或隔离器。
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公开(公告)号：US06746019B1
公开(公告)日：2004-06-08
申请号：US10070022
申请日：2002-02-26
IPC分类号： F16J1543
CPC分类号： F16J15/3444 , F01D11/22
摘要： A seal assembly (10) includes a first seal element (12) defining a fist sealing surface (14); displacement means including at least one electromagnet (20) operatively coupled with the first seal element (12), the displacement means being operable to displace the first seal element (12) via the, or each, electromagnet (20); and a second seal element defining a second sealing surface (28) associated with the first sealing surface (14), the first and second seal elements providing a seal. The invention extends to a combination comprising a gas turbine and a seal assembly. The invention further extends to a method of controlling a spacial relationship between respective sealing surfaces of two seal elements.
摘要翻译： 密封组件（10）包括限定第一密封表面（14）的第一密封元件（12）。 位移装置包括至少一个与第一密封元件（12）可操作地联接的电磁体（20），所述位移装置可操作以经由所述电磁体（20）或每个电磁体（20）移位所述第一密封元件（12）。 以及限定与所述第一密封表面（14）相关联的第二密封表面（28）的第二密封元件，所述第一和第二密封元件提供密封。 本发明延伸到包括燃气轮机和密封组件的组合。 本发明进一步延伸到一种控制两个密封元件的相应密封表面之间的空间关系的方法。
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公开(公告)号：US4447063A
公开(公告)日：1984-05-08
申请号：US500160
申请日：1983-06-01
CPC分类号： F16J15/3444 , F16J15/342 , F16J15/346
摘要： In a shaft seal having a radial plane seal ring gap and comprising a seal ring rotating with a shaft, and a non-rotating seal ring mounted on a housing of the seal through an element which is elastically yielding in every direction and serves as a packing at the same time, the sealing fluid flows into the sealing gap through supply bores and through associated distributing pockets which are provided in the non-rotating seal ring and/or at the outer or inner circumference of the rotating seal ring. Sensors for measuring the sealing gap are provided in the non-rotating seal ring on the gap side. By means of the measured values, electromagnets disposed in the seal housing to face each other and cooperating with opposite magnetizable bodies provided in the non-rotating seal ring, are electronically controlled to maintain a predetermined constant small width of the seal gap. The electromagnets are disposed axially at both sides of a shoulder portion of the non-rotating seal ring to be effective in opposite directions, against each other.
摘要翻译： 在具有径向平面密封环间隙并且包括与轴一起旋转的密封环的轴封中，以及安装在密封件的壳体上的非旋转密封环，其通过在每个方向上弹性屈服并用作填料的元件 同时，密封流体通过供应孔和通过设置在旋转密封环的非旋转密封环中和/或在外周或内圆周处的相关分配袋流入密封间隙。 用于测量密封间隙的传感器设置在间隙侧的非旋转密封环中。 通过测量值，设置在密封壳体中以彼此面对并与设置在非旋转密封环中的相对可磁化体配合的电磁体被电子控制，以保持密封间隙的预定的恒定小的宽度。 电磁铁轴向设置在非旋转密封环的肩部的两侧，以相对于彼此相反的方向有效。
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公开(公告)号：US10001217B2
公开(公告)日：2018-06-19
申请号：US14995850
申请日：2016-01-14
申请人： Isomag Corporation
发明人： Stephen M. Dawson
CPC分类号： F16J15/3404 , F16J15/3444 , F16J15/3464
摘要： A magnetic rotary seal with improved drain back is provided, comprising a housing adapted to matingly engage a fixed opening, wherein the housing includes an annular retaining member. A stator is positioned within the housing, wherein the stator includes a first resilient sealing member adapted to sealingly contact the housing, and a first frictional sealing face. A rotor is positioned between the annular retaining member of the housing and the stator, wherein the rotor includes a second resilient sealing member adapted to sealingly contact a shaft, and a second frictional sealing face. Magnets are operatively positioned between the stator and the rotor urging engagement of the first frictional sealing face of the stator with the second frictional sealing face of the rotor. The housing further includes an annular channel for receiving lubricating fluids from within the seal, and a drain port in fluidic communication with the channel. The annular retaining member includes one or more expulsion ports formed therein to permit lubricating fluids to move away from the rotor and into the channel during operation of the seal.
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公开(公告)号：US20170045144A1
公开(公告)日：2017-02-16
申请号：US15229712
申请日：2016-08-05
IPC分类号： F16J15/43
CPC分类号： F16J15/43 , F16J15/3444 , F16J15/3492
摘要： A method to control an axial separation between a rotating ring and a stationary ring of a dry gas seal. The dry gas seal restricts leakage of a gas or other fluid to or from a rotating device. At least one property of the gas or other fluid is sensed. At least one of the axial separation between the rotating ring and the stationary ring, and a time rate of change of the axial separation, is sensed. A stiffness of a film between the rotating ring and the stationary ring is estimated. A field strength of at least one magnetic device is adjusted based on at least two of the sensed axial separation, the sensed time rate of change of the separation, and the estimated film stiffness. The axial separation between the rotating ring and the stationary ring is adjusted.
摘要翻译： 控制干气密封的旋转环和固定环之间的轴向间隔的方法。 干燥的气体密封件限制了气体或其它流体向或从旋转装置泄漏。 气体或其他流体的至少一种性质被感测。 感测到旋转环和静止环之间的轴向间隔中的至少一个以及轴向间隔的时间变化率。 估计旋转环和固定环之间的膜的刚度。 基于检测到的轴向间隔，检测到的分离时间变化率和估计的膜刚度中的至少两个来调节至少一个磁性装置的场强。 调节旋转环和固定环之间的轴向间距。
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公开(公告)号：US20160214047A1
公开(公告)日：2016-07-28
申请号：US14916443
申请日：2014-11-05
发明人： Takuto FUKUHARA
CPC分类号： B01D46/0005 , B01D46/0056 , B01D46/24 , B01D2271/02 , B03C1/0332 , B03C1/286 , F16J15/002 , F16J15/32 , F16J15/3444 , F16J15/43
摘要： A filter device (100) includes an annular filter (110) provided on a shaft (10) and a rotary seal (120) for sealing an annular gap between the filter (110) and a housing (20). The rotary seal (120) includes an annular magnet (140) provided on the filter (110) and a flexible annular sealing member (130) provided on the housing (20). The sealing member (130) is provided on an upstream side of the magnet (140) and includes an annular opposing portion (132) that opposes the magnet (140) in an axial direction, and a magnetic fluid (150) soaked into the opposing portion (132). The opposing portion (132) makes contact with the magnet (140).
摘要翻译： 过滤器装置（100）包括设置在轴（10）上的环形过滤器（110）和用于密封过滤器（110）和壳体（20）之间的环形间隙的旋转密封件（120）。 旋转密封件（120）包括设置在过滤器（110）上的环形磁体（140）和设置在壳体（20）上的柔性环形密封构件（130）。 所述密封部件（130）设置在所述磁体（140）的上游侧，并且包括在轴向与所述磁体（140）相对的环状相对部（132）和浸入所述磁体 部分（132）。 相对部分（132）与磁体（140）接触。
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