公开(公告)号：US07942425B2

公开(公告)日：2011-05-17

申请号：US10529261

申请日：2003-08-07

申请人： Daihachi Shojima

发明人： Daihachi Shojima

IPC分类号： F16J15/10

CPC分类号： F16J15/064 ,  C09K3/1009 ,  F16J15/166 ,  Y10S277/914

摘要： To make a plasma resistant seal excellent in both a plasma resisting performance and a sealing performance, and prevent an O-ring from protruding to a vacuum side gap, a plasma seal (6) made of PTFE having a plasma resisting performance is provided in a plasma irradiating side of an O-ring (5) as a main seal made of a rubber-like elastic material, an installation groove (4) shallower than a depth of an installation groove (3) provided in an installation member (2) is continuously provided in a plasma irradiation side of the installation groove (3), the O-ring (5) is attached to the installation groove (3), and the plasma seal (6) is attached to the installation groove (4) in a compressed state, or the O-ring is attached to the installation groove and the plasma seal is attached to the plasma irradiation side of the same installation groove (3) in a compressed state.

摘要翻译： 为了制造等离子体耐受性能和密封性能优异的等离子体电绝缘性，并且防止O型环突出到真空侧间隙，由等离子体阻抗性能的PTFE制成的等离子体密封件（6）设置在 O形环（5）的等离子体照射侧作为由橡胶状弹性材料制成的主密封件，比设置在安装构件（2）中的安装槽（3）的深度浅的安装槽（4） 连续设置在安装槽（3）的等离子体照射侧，O形环（5）安装在安装槽（3）上，等离子体密封件（6）以安装槽 压缩状态，或者O形环附接到安装槽，等离子体密封件以压缩状态附着在同一安装槽（3）的等离子体照射侧。

公开(公告)号：US20080296405A1

公开(公告)日：2008-12-04

申请号：US11757430

申请日：2007-06-04

申请人： Lloyd D. Hanson ,  William B. Jones, JR.

发明人： Lloyd D. Hanson ,  William B. Jones, JR.

IPC分类号： F16J9/14

CPC分类号： F16L27/0816 ,  C10B33/00 ,  F16J15/004 ,  F16J15/008 ,  Y10S277/914 ,  Y10T137/0318

摘要： A rotary joint for a decoking tool. The rotary joint includes a seal assembly that has one or more primary seals and one or more secondary seals. The secondary seals become operative upon the presence of a leak in the primary seals such that the rotary joint can continue to be used until a scheduled maintenance outage. A selective vent is used to route leaking fluid so that one or the other of the primary and secondary seals can be activated.

摘要翻译： 用于脱焦工具的旋转接头。 旋转接头包括具有一个或多个主密封件和一个或多个二次密封件的密封组件。 二次密封件在主密封件中存在泄漏时变得可操作，使得旋转接头可以继续使用直到定期维护中断。 选择性排气口用于引导泄漏的流体，使得主密封件和次密封件中的一个或另一个可以被激活。

公开(公告)号：US20050253341A1

公开(公告)日：2005-11-17

申请号：US10529261

申请日：2003-08-07

申请人： Daihachi Shojima

发明人： Daihachi Shojima

IPC分类号： C09K3/10 ,  F16J15/06 ,  F16J15/16 ,  H01L21/3065

CPC分类号： F16J15/064 ,  C09K3/1009 ,  F16J15/166 ,  Y10S277/914

摘要： To make a plasma resistant seal excellent in both a plasma resisting performance and a sealing performance, and prevent an O-ring from protruding to a vacuum side gap, a plasma seal (6) made of PTFE having a plasma resisting performance is provided in a plasma irradiating side of an O-ring (5) as a main seal made of a rubber-like elastic material, an installation groove (4) shallower than a depth of an installation groove (3) provided in an installation member (2) is continuously provided in a plasma irradiation side of the installation groove (3), the O-ring (5) is attached to the installation groove (3), and the plasma seal (6) is attached to the installation groove (4) in a compressed state, or the O-ring is attached to the installation groove and the plasma seal is attached to the plasma irradiation side of the same installation groove (3) in a compressed state.

摘要翻译： 为了制造等离子体耐受性能和密封性能优异的等离子体电绝缘性，并且防止O型环突出到真空侧间隙，由等离子体阻抗性能的PTFE制成的等离子体密封件（6）设置在 O形环（5）的等离子体照射侧作为由橡胶状弹性材料制成的主密封件，比设置在安装构件（2）中的安装槽（3）的深度浅的安装槽（4） 连续设置在安装槽（3）的等离子体照射侧，O形环（5）安装在安装槽（3）上，等离子体密封件（6）以安装槽 压缩状态，或者O形环附接到安装槽，等离子体密封件以压缩状态附着在同一安装槽（3）的等离子体照射侧。

公开(公告)号：US20030075871A1

公开(公告)日：2003-04-24

申请号：US10278020

申请日：2002-10-23

发明人： Hiroyuki Shinozaki

IPC分类号： F16J015/40

CPC分类号： G03F7/70841 ,  F16C29/025 ,  F16C29/08 ,  F16C32/0614 ,  F16C33/748 ,  F16C2300/62 ,  F16J15/406 ,  G03F7/70808 ,  G03F7/70816 ,  Y10S277/914

摘要： A differential pumping seal apparatus includes a differential pumping seal for sealing a first space and a second space from each other in a non-contact manner, and a back up seal mechanism for sealing the first space and the second space from each other in a contact manner. The back up seal mechanism is operated to seal the first space and the second space from each other only when the differential pumping seal is stopped or while operation of said differential pumping seal is stopped.

摘要翻译： 差动泵送密封装置包括用于以非接触方式彼此密封第一空间和第二空间的差动泵送密封件，以及用于将第一空间和第二空间彼此密封的后备密封机构 方式。 只有当差动泵送密封件停止时或者所述差动泵送密封件的停止运行时，所述后备密封机构被操作才能密封所述第一空间和所述第二空间。

公开(公告)号：US20020195466A1

公开(公告)日：2002-12-26

申请号：US10212315

申请日：2002-08-05

发明人： Thomas M. Seidita

IPC分类号： B67D005/62

CPC分类号： B29C45/27 ,  B29C45/2725 ,  B29C45/2737 ,  B29C2045/2761 ,  B29C2045/2762 ,  B29L2031/565 ,  Y10S277/914 ,  Y10S277/944 ,  Y10T29/49716 ,  Y10T29/49719

摘要： A system for pressure molding plastic material includes a source of hot flowable plastic material and a manifold for receiving hot flowable plastic material from the source and for transporting the hot flowable plastic material to a nozzle that is disposed within a nozzle cavity. A heater is provided to heat the nozzle and is positioned outside of, but close to, the nozzle cavity and includes at least one electrical supply wire. A shut-off seal is positioned within the nozzle cavity to seal the nozzle with respect to the wall defining the shut-off cavity. In addition, a secondary seal is most advantageously positioned between the shut-off seal and the heater for ensuring that any hot flowable plastic material that might leak through the shut-off seal does not come into contact with the electrical supply wire. This has been found to increase the reliability and operating life of conventional pressure molding systems.

公开(公告)号：US5171024A

公开(公告)日：1992-12-15

申请号：US197174

申请日：1988-05-23

申请人： David J. Janocko

发明人： David J. Janocko

IPC分类号： F16J15/34 ,  F04D29/12 ,  F16J15/00 ,  F16J15/16

CPC分类号： F16J15/164 ,  F04D29/126 ,  F16J15/008 ,  Y10S277/914 ,  Y10S277/929 ,  Y10S277/931

摘要： A shutdown seal is provided in a pump for activation to prevent passage of fluid along a shaft relative to a fluid-containing housing of the pump through which the shaft extends. The shutdown seal is an annular member having a mounting flange and a sealing collar. The mounting flange is attached to the housing, and the sealing collar is disposed about the shaft. The annular member is constructed of shape memory metal material which below its transition temperature has an expanded configuration in which its annular sealing collar portion is spaced from the shaft so as to define a deactivated unsealed condition of the shutdown seal. On the other hand, above the transition temperature of the material the annular member has a contracted configuration in which its sealing collar contacts the shaft so as to define an activated sealed condition of the shutdown seal. In one embodiment, the annular member of the shutdown seal forms a stationary part of a slip joint secondary seal coupled between the housing and shaft. In another embodiment, the annular member of the shutdown seal forms a hollow shell attached to the interior of a stationary part of a slip joint secondary seal coupled between the housing and shaft.

公开(公告)号：US5074568A

公开(公告)日：1991-12-24

申请号：US510851

申请日：1990-04-18

申请人： Erich Bertsch

发明人： Erich Bertsch

IPC分类号： F16J15/18 ,  F16J15/36 ,  F16J15/46 ,  F16J9/20

CPC分类号： F16J15/36 ,  F16J15/46 ,  Y10S277/914 ,  Y10S277/929

摘要： The shaft seal between a fixed housing wall (2) and a revolving shaft (1) consists of a collar (6) fixedly connected to the shaft (1), respectively one leg of the U-shaped sealing rings (69, 71) pressing against this collar. The cavities (14, 15) of the sealing rings (69, 71) can be acted upon, via connections, by a pressure medium, wherein respectively one of the legs of the sealing rings (69, 71) is pressed sealingly against the collar (6). The annular chamber (17) coaxial to the end face of the collar (6) can be filled with a lubricant and/or a coolant by way of an inlet and outlet. This structurally simple shaft seal is arranged in compact fashion. This seal operates in a safe and reliable manner. For the prevention of chemical accidents, a circulating pressure medium can be provided to act only on the sealing ring (69) located closest to the reaction chamber (3), and this pressure medium can be continuously monitored for traces from the reaction chamber (3) by way of an indicator. Upon the occurrence of a leak, the cavity (15) of the second sealing ring (71) is automatically pressurized, which then provides the further sealing action. Thereafter, an exchange or repair of the sealing unit (57) can be prepared at leisure.

摘要翻译： 固定壳体壁（2）和旋转轴（1）之间的轴密封件包括分别固定地连接到轴（1）的轴环（6），U形密封环（69,71）的一个腿部压紧 反对这个领子 密封环（69,71）的空腔（14,15）可以经由连接件被压力介质作用，其中分别将密封环（69,71）的一个腿部密封地压靠在套环 （6）。 与轴环（6）的端面同轴的环形室（17）可以通过入口和出口填充有润滑剂和/或冷却剂。 这种结构简单的轴封以紧凑的方式布置。 该密封件以安全可靠的方式运行。 为了防止化学事故，可以提供循环压力介质以仅作用于最靠近反应室（3）的密封环（69），并且可以连续监测该压力介质从反应室（3） ）通过指标。 在发生泄漏时，第二密封环（71）的空腔（15）被自动加压，从而提供进一步的密封作用。 此后，可以随意准备密封单元（57）的更换或修理。

公开(公告)号：US4865333A

公开(公告)日：1989-09-12

申请号：US111766

申请日：1987-10-23

申请人： Denis M. W. Winslow

发明人： Denis M. W. Winslow

IPC分类号： F04D29/12 ,  F16J15/00 ,  F16J15/34 ,  F16J15/40

CPC分类号： F16J15/008 ,  F04D29/128 ,  F16J15/346 ,  F16J15/40 ,  Y10S277/914 ,  Y10S277/929

摘要： The seal protection apparatus is intended to provide protection for a main mechanical seal. It comprises a first seal ring fast on the shaft of a pump and a second seal ring which is connected to the casing of the pump by means of a flexible, annular diaphragm which is exposed on one side to pumped product in the casing. The combination of seal rings and diaphragm define one end of a service liquid compartment which is supplied with pressurized, clean service water. The other end of the compartment is defined by the main seal. With a flow of service water to the compartment, the seal rings are forced apart by the water pressure. Water is able to leak between the rings into the casing thereby denying the pumped product access to the compartment and main seal. On the other hand, if the supply of service water should fail for any reason, the pumped product acts on the diaphragm and forces the seal rings together. The pumped product is again denied access to the main seal.

摘要翻译： 密封保护装置旨在为主机械密封提供保护。 它包括在泵的轴上快速的第一密封环和第二密封环，第二密封环通过柔性的环形隔膜连接到泵的外壳，该隔膜在一侧暴露于泵壳中的泵送产品。 密封环和隔膜的组合限定了服务液体隔室的一端，供应有加压清洁的服务水。 隔间的另一端由主密封限定。 随着水流向隔室，密封环被水压强制分开。 水能够在环之间泄漏到壳体中，从而抵消泵送产品进入隔室和主密封件。 另一方面，如果供水由于任何原因而失效，泵送产品将作用在隔膜上并将密封环推到一起。 泵送产品再次被拒绝进入主密封件。

公开(公告)号：US4625977A

公开(公告)日：1986-12-02

申请号：US728995

申请日：1985-04-30

申请人： Henri V. Azibert ,  Robert E. Rockwood

发明人： Henri V. Azibert ,  Robert E. Rockwood

IPC分类号： F16J15/00 ,  F16J15/34

CPC分类号： F16J15/008 ,  F16J15/3484 ,  Y10S277/914

摘要： A seal assembly has a pair of relatively rotatable sub-assemblies adapted to be attached and sealed respectively to relatively fixed and relatively rotatable members to confine the flow of fluid through the space between the members to a restricted passage. One of the sub-assemblies includes one of a pair of relatively rotatable seal rings. Coupling means are operable to selectively couple the other seal ring of the pair to a sub-assembly in a stand-by state in which the seal rings are not in relatively rotated engagement and, alternately, in a working state in which the seal rings are in relatively rotated engagement to seal the restricted passage. Preferably, the coupling means are operable while the sub-assemblies remain in respective installed positions; include means relatively movable to seal the opposed faces of the rings from the restricted passage in the stand-by state and to expose those faces to the passage in the working state, and are operable to couple the second seal ring alternatively to the respective sub-assemblies to provide the respective states of the seal rings. Preferably also, additional seal means are provided for sealing the restricted passage.

摘要翻译： 密封组件具有一对相对可旋转的子组件，其适于分别附接和密封到相对固定的和相对旋转的构件，以将流体流动限制在构件之间的空间到限制通道。 一个子组件包括一对相对旋转的密封环中的一个。 联接装置可操作以选择性地将该对中的另一个密封环联接到处于不在相对旋转接合状态的待机状态下的子组件，或者在其中密封环为 在相对旋转的接合中以密封限制的通道。 优选地，联接装置可操作，同时子组件保持在相应的安装位置; 包括可相对移动的装置，以便在备用状态下从限制通道密封环的相对面，并且在工作状态下将这些面暴露于通道，并且可操作以将第二密封环与相应的子部件 组件以提供密封环的各自状态。 还优选地，提供附加的密封装置用于密封限制的通道。

公开(公告)号：US4375291A

公开(公告)日：1983-03-01

申请号：US300152

申请日：1981-09-08

申请人： Arnold F. Padgett

发明人： Arnold F. Padgett

IPC分类号： F04D29/12 ,  F04D29/10 ,  F16J15/00 ,  F16J15/16 ,  F16J15/34 ,  F16J15/44 ,  F16J15/54 ,  F16J15/46 ,  B65D53/06 ,  F04D29/08

CPC分类号： F16J15/008 ,  F04D29/106 ,  F16J15/164 ,  F16J15/54 ,  Y10S277/914 ,  Y10S277/917 ,  Y10S277/929

摘要： A pump assembly having an impeller for pumping a fluid from an intake to an outlet, a prime mover for driving the impeller, and a primary mechanical seal assembly between the prime mover and the impeller which is located in a housing. The mechanical seal assembly substantially prevents leakage of the fluid being pumped along a shaft connecting the impeller and the prime mover. A secondary mechanical seal means is located in the housing between the prime mover and the mechanical seal assembly. The secondary seal means is constructed of a material, such as carbon, which will collapse under pressure of the fluid being pumped upon failure of the primary mechanical seal assembly, to substantially prevent the leakage of fluid along the shaft and to the exterior of the housing.

摘要翻译： 具有用于将流体从进气口泵送到出口的叶轮的泵组件，用于驱动叶轮的原动机以及位于壳体内的原动机和叶轮之间的主机械密封组件。 机械密封组件基本上防止沿连接叶轮和原动机的轴被泵送的流体泄漏。 二次机械密封装置位于原动机和机械密封组件之间的壳体中。 次级密封装置由诸如碳的材料构成，其将在主机械密封组件故障时被泵送的流体的压力下崩溃，以基本上防止流体沿着轴和外壳的外部泄漏 。