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公开(公告)号：US12085171B2
公开(公告)日：2024-09-10
申请号：US17286175
申请日：2019-08-22
发明人： Masaru Fujiwara , Kodai Inoue
CPC分类号： F16J15/182 , F16J15/20 , F16J15/24
摘要： A gland packing includes a gland packing body made of expanded graphite. The gland packing body has a cylindrical shape, and has a plurality of layers formed in a radial direction. The gland packing body has first and second surfaces, which are both end surfaces in an axial direction. The gland packing further includes an annular first sheet portion made of expanded graphite, an annular second sheet portion made of expanded graphite, an annular first porous member, and an annular second porous member. The first sheet portion is arranged on the first surface. The second sheet portion is arranged on the second surface. The first porous member is arranged on the first sheet portion. The second porous member is arranged on the second sheet portion.
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公开(公告)号：US11719342B2
公开(公告)日：2023-08-08
申请号：US17545360
申请日：2021-12-08
发明人： Jacques Gourde , Maryse Labonté
CPC分类号： F16J15/20 , F16J15/188
摘要： The present disclosure relates to packing material for stuffing boxes. The packing material comprises a resilient body configured to generate a sealing force on shafts and characterized by a directional resiliency to maintain a substantially constant sealing force under conditions of wear and axial displacement of rotating shafts.
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公开(公告)号：US20170204974A1
公开(公告)日：2017-07-20
申请号：US14996767
申请日：2016-01-15
IPC分类号： F16J15/18
CPC分类号： F16J15/183 , F04B39/041 , F16J15/18 , F16J15/181 , F16J15/182 , F16J15/20
摘要： A packing ring is disclosed for sealingly engaging a movable rod member within a stuffing box having an internal cavity. In an embodiment, the packing ring includes a carrier and a sealing ring mounted to the carrier. The sealing ring is configured to sealingly engage with an outer surface of the rod when the rod is disposed within the internal cavity. The carrier includes a radially outer surface that is configured to sealingly engage with an internal surface of the stuffing box. In addition, the carrier includes a radially inner surface that is proximate to an outer surface of the rod when the rod extends through the stuffing box. Further, the carrier includes a plurality of lubrication grooves each groove extending from the radially outer surface to the radially inner surface and configured to convey a lubricant flow between the radially outer surface and the radially inner surface.
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公开(公告)号：US09664287B2
公开(公告)日：2017-05-30
申请号：US14647625
申请日：2013-11-27
发明人： Yoshitaka Nakanishi
CPC分类号： F16J15/20 , B29K2105/04 , F03B11/006 , F16J15/068 , F16J15/16 , F16J15/162 , F16J15/181 , F16J15/182 , F16J15/3404 , F16J15/3496
摘要： Provided is a shaft seal device provided with a seal member which possesses excellent liquid tightness, small friction resistance and high wear resistance. In a shaft seal device which is arranged around the periphery of a shaft which is supported in a rotatable manner or in a reciprocating manner, and is provided with a seal member for securing liquid tightness around the shaft, the seal member is formed of a porous body formed by using a hydrophilic polymer resin in which chains are cross-linked. The shaft seal device is also characterized in that: the shaft is a shaft which extends between a liquid phase region and a gas phase region; the seal member is a seal member which suppresses a leakage of a liquid to the gas phase region from the liquid phase region; and an aqueous lubricant which is prepared by adding a water soluble thickening agent is impregnated into the seal member.
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公开(公告)号：US09458691B2
公开(公告)日：2016-10-04
申请号：US14153611
申请日：2014-01-13
发明人： Gordon Rowe , Kermit Bierut
CPC分类号： E21B33/10 , E21B33/1212 , F16J15/20
摘要： A subterranean wellbore assembly includes an outer cylindrical wall and an inner cylindrical wall cooperatively defining an annular space. A seal assembly is disposed within the annular space. The seal assembly includes chevron seals. Each chevron seal includes a central portion and two axially and radially extending wing portions. Chevron seals may be of polymeric PEEK material or of nickel based material. Other seal assemblies may be arranged in the annular space in place of the seal assembly.
摘要翻译： 一个地下井筒组件包括一个外圆柱形壁和一个协调地限定环形空间的内圆柱形壁。 密封组件设置在环形空间内。 密封组件包括人字形密封件。 每个V形密封件包括中心部分和两个轴向和径向延伸的翼部分。 雪佛龙密封件可以是聚合物PEEK材料或镍基材料。 可以在环形空间中设置其它密封组件来代替密封组件。
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公开(公告)号：US09371911B2
公开(公告)日：2016-06-21
申请号：US14390242
申请日：2013-10-15
申请人： NOK CORPORATION
发明人： Kazunori Jinbo , Hiroki Okada , Toru Araki
CPC分类号： F16J15/3204 , F16F9/36 , F16J15/18 , F16J15/20 , F16J15/32 , F16J15/3236 , F16J15/56
摘要： In a reciprocating sealing device sealing two members by mounting a packing to a mounting groove in one of two relatively reciprocating members, and bringing the packing into contact with the other member, the packing is provided with an annular base part, a stationary side lip, and a sliding side lip. A back ring having a lower hardness than the packing is interposed between the annular base part and a groove side surface of the mounting groove. The back ring forms a space region in relation to the other member. The annular base part is provided with a shape that the annular base part does not protrude out of an extension of a peripheral surface of the sliding side lip in a free state by forming a cross sectional shape of a heel part into a circular arc shape or a taper shape.
摘要翻译： 在往复式密封装置中，通过将填料安装在两个相对往复运动的构件中的一个中的安装槽中并使填料与另一个构件接触来密封两个构件，该密封件设置有环形基部，固定侧唇， 和滑动侧唇。 在环形基部和安装槽的槽侧表面之间插入具有比密封件低的硬度的背环。 后环形成相对于另一个构件的空间区域。 环形基部设置有通过将脚跟部分的横截面形状形成为圆弧形状而在自由状态下从环状基部突出到滑动侧唇的外周表面的延伸部的形状，或 锥形。
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公开(公告)号：US20160018002A1
公开(公告)日：2016-01-21
申请号：US14755407
申请日：2015-06-30
发明人： Jon M. Lenhert , Robert T. Racicot , Kha V. Le
CPC分类号： F16J15/20 , F16J15/166 , F16J15/181 , F16J15/3212 , F16J15/3236 , F16J15/3284
摘要： A seal assembly includes a seal body, a spring disposed adjacent to the seal body, and a seal ring disposed adjacent to the seal body. The seal body and the seal ring can include a plastic polymer material. The seal assembly can be a subcomponent of hydraulic strut in the landing gear of an aircraft.
摘要翻译： 密封组件包括密封体，邻近密封体设置的弹簧和邻近密封体设置的密封环。 密封体和密封环可以包括塑料聚合物材料。 密封组件可以是飞机起落架中的液压支柱的次要组件。
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公开(公告)号：US08952105B2
公开(公告)日：2015-02-10
申请号：US13478387
申请日：2012-05-23
CPC分类号： F16J15/20 , C08L81/00 , C09K3/10 , C09K2003/1068 , E21B33/06 , E21B33/1208 , F16J15/022
摘要： An article includes a crosslinked product of: a first crosslinked polymer and a second crosslinked polymer, wherein the article has a gradient in glass transition temperature. A process for making the article includes combining a first crosslinked polymer and a second crosslinked polymer to form a composition; compressing the composition; heating the composition; and crosslinking the composition to form the article, the article having a gradient in glass transition temperature. An article can be a seal that includes a first portion including a crosslinked product of: a first crosslinked polymer and a second crosslinked polymer; and a second portion including a polymer which is different than a constituent polymer in the first portion, wherein the seal has a gradient in glass transition temperature.
摘要翻译： 一种制品包括交联产物：第一交联聚合物和第二交联聚合物，其中制品具有玻璃化转变温度的梯度。 制造该制品的方法包括组合第一交联聚合物和第二交联聚合物以形成组合物; 压缩组成; 加热组合物; 并交联组合物以形成制品，该制品具有玻璃化转变温度的梯度。 制品可以是包括第一部分的密封件，所述第一部分包括交联产物：第一交联聚合物和第二交联聚合物; 以及第二部分，其包括与第一部分中的构成聚合物不同的聚合物，其中所述密封具有玻璃化转变温度的梯度。
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公开(公告)号：US08631878B2
公开(公告)日：2014-01-21
申请号：US12691327
申请日：2010-01-21
申请人： Khanh A. Duong
发明人： Khanh A. Duong
IPC分类号： E21B33/12
摘要： A ring like seal assembly for a wellhead assembly that seals between a pair of coaxial tubulars. The seal assembly includes a spring member for exerting an axial force on the seal. The spring member projects from an end of the seal assembly substantially parallel to the axis of the seal assembly and is compressed when installing the seal assembly between the tubulars. Compressing the spring member maintains an axial force on the seal assembly to keep the seal assembly radially deformed so that it can maintain sealing contact with both coaxial tubulars.
摘要翻译： 用于密封在一对同轴管之间的井口组件的环形密封组件。 密封组件包括用于在密封件上施加轴向力的弹簧构件。 弹簧构件从密封组件的端部突出大致平行于密封组件的轴线，并且在将密封组件安装在管状件之间时被压缩。 压缩弹簧构件在密封组件上保持轴向力以保持密封组件径向变形，使得其可以保持与两个同轴管的密封接触。
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公开(公告)号：US20130330220A1
公开(公告)日：2013-12-12
申请号：US13954672
申请日：2013-07-30
发明人： John A. Miller , Robert H. Ash, Jr.
IPC分类号： F04B53/02
CPC分类号： F16J15/166 , F04B39/0005 , F04B53/02 , F04B53/14 , F04B53/16 , F16J15/181 , F16J15/20 , Y10T29/49236
摘要： A header ring for use in a stuffing box comprising an annular body portion of an elastomeric material, an annular radially inward projecting sealing lip portion formed on said body portion and an annular, axially facing pedestal portion formed on said body portion, said pedestal portion defining an annularly extending radially inwardly facing pedestal surface, the sealing lip portion defining an annularly extending, radially inward facing sealing surface, the sealing surface and the pedestal surface forming a juncture, at least a portion of the pedestal portion adjacent the juncture and forming the pedestal surface and at least a portion of the sealing lip portion adjacent the juncture and forming a portion of the sealing surface being comprised of a layer of reinforced elastomeric material bonded to the body portion.
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