公开(公告)号：US20220056997A1

公开(公告)日：2022-02-24

申请号：US17445357

申请日：2021-08-18

申请人： SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION

发明人： Mark W. ARMITAGE ,  Douglas GEORGE

IPC分类号： F16J15/3236 ,  F16J15/3228

摘要： Systems and methods include providing an annular seal stack for an assembly. The seal stack is disposed within an annulus formed between a probe and a housing of the assembly and configured to provide a radial seal between the probe and the housing. The seal stack includes a first support retainer, a first lipseal, a first seal support system comprising at least one support ring disposed between the first support retainer and the first lipseal, a second support retainer configured to support the first lipseal, a second lipseal, a second seal support system comprising at least one support ring disposed between the second support retainer and the second lipseal, and a third support retainer configured to support the second lipseal.

公开(公告)号：US11118685B2

公开(公告)日：2021-09-14

申请号：US16005996

申请日：2018-06-12

申请人： Garlock Sealing Technologies, LLC

发明人： T. Scott Tanner ,  Michael P. McNally ,  Joseph D. Young ,  Stefan Pitolaj

IPC分类号： F16J15/3284 ,  F16J15/3228 ,  F16J15/3204 ,  F16J15/3252

摘要： A multi-layered lip seal comprising a dynamic layer optionally having a filler incorporated therein and a static layer optionally having a filler incorporated therein is described. The lip seal has an annular ring shape, wherein an inner diameter of the ring shape is curved in an axial direction so as to give the lip seal a J-shape when viewed from a cross-sectional perspective. Fillers that can be included in static layer include stiffening filler, reinforcement fillers, conductive fillers and/or abrasion resistance fillers. Fillers that can be included in the dynamic layer include wear resistance fillers. The use of specific fillers in specific layers of the multi-layered lip seal allows for certain segments of the lip seal to be imparted with the benefits of the filler without negatively impacting other segments of the lip seal.

公开(公告)号：US10655735B2

公开(公告)日：2020-05-19

申请号：US16015133

申请日：2018-06-21

申请人： Trelleborg Sealing Solutions Germany GmbH

发明人： Martin Franz ,  Bernhard Hahn ,  Matthias Keck

IPC分类号： F16J15/32 ,  F16J15/322 ,  F16J15/3212 ,  F16J15/3228 ,  F16J15/3244 ,  F16J15/3208 ,  F16J15/16

摘要： A seal arrangement has two machine parts movable toward one another along or about a movement axis. One of the two machine parts forms a seal holding structure and the other forms a sealing surface. A sealing device between the two machine parts is arranged on or in the seal holding structure, wherein the sealing device includes a sealing element and a pre-tensioning element which is separate from the sealing element and by means of which the sealing element is tensioned in the radial direction against the sealing surface of the respectively other machine part. The sealing element is formed by an elastically deformable sealing film. On the sealing film side, the pre-tensioning element forms an embossed structure which presses into the sealing film where the sealing film bears against the sealing surface with a contact pressure progression which corresponds to the embossed structure of the pre-tensioning element.

公开(公告)号：US10393268B2

公开(公告)日：2019-08-27

申请号：US15129760

申请日：2015-03-27

申请人： SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION

发明人： Andreas Gorol ,  Mario Boskovski

IPC分类号： F16J15/3228 ,  F16J15/3252 ,  F16J15/3284

摘要： A rotary shaft seal housing including a body having an aperture defining a central axis and an inner surface, the body defining a cavity concentric to the central axis of the aperture and extending outward from the central axis and into the body, and a flange extending inward toward the central axis a distance beyond the inner surface, the flange having a first surface contiguous with the cavity and a second surface opposite the first surface, wherein the cavity is adapted to hold a sealing element, and wherein the first surface is generally smooth.

公开(公告)号：US10041596B2

公开(公告)日：2018-08-07

申请号：US13487971

申请日：2012-06-04

申请人： Uwe Koch ,  Martin Schuster ,  Walter Schuhmacher

发明人： Uwe Koch ,  Martin Schuster ,  Walter Schuhmacher

IPC分类号： F16J15/46 ,  F16J15/48 ,  F16J15/3228

摘要： A radial shaft seal is provided for sealing between high and low pressure sides in an annular space between a shaft and a static structural receiving part, wherein the shaft seal is rotationally symmetric and arranged coaxially to the shaft. A first sealing ring has an inner periphery bulging toward the low pressure side and forms a first sealing lip abutting the shaft. A spacer ring has first and second faces directed towards the high and low pressure sides, respectively. An elastic shaped part has an outer periphery abutting the second face of the spacer ring and an inner periphery bulging toward the high pressure side and abutting the first sealing lip. At least the spacer ring and elastic shaped part define a cavity subjected to the high pressure side or a control pressure which presses the first sealing lip against the shaft via the elastic shaped part.

公开(公告)号：US09851010B2

公开(公告)日：2017-12-26

申请号：US13757873

申请日：2013-02-04

申请人： Carl Freudenberg KG

发明人： Luc Humblot ,  Dominique Lutaud

IPC分类号： F16J15/32 ,  F16J15/3204 ,  F16J15/3228 ,  F16J15/3244

CPC分类号： F16J15/3204 ,  F16J15/3228 ,  F16J15/3244

摘要： A seal with, on the one hand, a support body in the form of a carrier ring with an axial leg and, on the other hand, a sealing washer which is placed or arranged on the carrier ring and which surrounds the axial leg on the outer periphery, said carrier ring being made of a metallic material, wherein the carrier ring is made of a sheet of the HYS type.

公开(公告)号：US09845882B2

公开(公告)日：2017-12-19

申请号：US14645473

申请日：2015-03-12

申请人： Carl Freudenberg KG

发明人： Dominique Lutaud

IPC分类号： F01D11/02 ,  F16J15/3232 ,  F16J15/00 ,  F16J15/3228 ,  F04D29/043 ,  F04D29/12 ,  F16J15/322

CPC分类号： F16J15/3232 ,  F04D29/043 ,  F04D29/126 ,  F16J15/002 ,  F16J15/004 ,  F16J15/322 ,  F16J15/3228

摘要： A double sealing device for a rotating shaft comprising a first and a second seal of annular form mounted side by side in a peripheral groove formed in a wall of a circular cylindrical housing through which the shaft to be sealed passes. At least one of a discharge or vent channel opens into the peripheral groove between the two seals. The seals comprise a carrier ring with an outer axial flange and an inner radial flange, and a sealing washer applied to each carrier ring to cover a part of an outer face of the axial flange. A sealing lip bearing is formed slidably on the shaft, the first seal sealing a first fluid medium and the second seal sealing a second fluid medium. The axial flange has an extension forming a pierced structure, not covered by the sealing washer of the seal, and disposed facing the peripheral groove.

公开(公告)号：US4645215A

公开(公告)日：1987-02-24

申请号：US775470

申请日：1985-09-12

申请人： Dieter Fuchs ,  Wolfgang Schmitt

发明人： Dieter Fuchs ,  Wolfgang Schmitt

IPC分类号： F02B75/02 ,  F16J15/3228 ,  F16J15/32

CPC分类号： F16J15/3228 ,  F02B2075/025 ,  F05C2225/04 ,  Y10S277/922

摘要： A radially-sealing ring has a sealing element of a non-elastomeric plastic, preferably of PTFE, planar, annular disk having plane-parallel surfaces held at its outer circumference in a stiffening ring and cold flexed in the axial direction to form a cuff at its inner circumference which engages the shaft with bias. The disk has a thickness of from 0.3 to 0.8 mm and an inside diameter approximately 1.5 to 7 times its thickness less than the diameter of the shaft. The distance between the shaft and the line about stiffening ring where the disk is held is 2 to 7 times as great as the thickness of the disk. The radially-sealing ring is preferably for sealing the crankshaft of a two-cycle engine.

摘要翻译： 径向密封环具有非弹性塑料的密封元件，优选为PTFE，平面的环形盘，其平面平行表面保持在加强环的外圆周处，并且在轴向方向上弯曲形成袖带 其内周与偏心接合。 盘的厚度为0.3〜0.8mm，内径约为轴的直径的1.5〜7倍。 轴与保持盘的加强环周围的线之间的距离是盘的厚度的2至7倍。 径向密封环优选用于密封双冲程发动机的曲轴。

公开(公告)号：US4126319A

公开(公告)日：1978-11-21

申请号：US779200

申请日：1977-03-18

申请人： Gotthold Raabe

发明人： Gotthold Raabe

IPC分类号： F16J1/04 ,  F16J10/02 ,  F16J15/3228 ,  F16J15/32

CPC分类号： F16J15/3228 ,  F16J10/02

摘要： The double-acting measuring piston of this invention is slidably positioned in a cylinder and is provided with oppositely disposed mirror image sealing members which encompass a supporting body and are retained in abutment therewith by spaced flanges. The sealing members have foil lip portions that form between them, the cylinder wall and the supporting body an annular pressure chamber. The mirror image sealing members have oppositely disposed surface areas that are subjected to chambers containing a medium pulsating at slight pressure differences.

摘要翻译： 本发明的双作用测量活塞可滑动地定位在气缸中，并且设置有相对设置的镜像密封构件，其包围支撑体并通过间隔的凸缘保持与其邻接。 密封构件具有在它们之间，气缸壁和支撑体上形成环形压力室的箔唇部分。 镜像密封构件具有相对设置的表面区域，其经受包含在稍微压力差下脉动的介质的腔室。

公开(公告)号：US20210215252A1

公开(公告)日：2021-07-15

申请号：US17262473

申请日：2019-07-11

申请人： SMC CORPORATION

发明人： Shinji MIYAZOE ,  Kazuhiro NOGUCHI ,  Kazuhiro UMEDA ,  Masayuki KUDO ,  Masahiko KAWAKAMI

IPC分类号： F16J15/3228 ,  F16J15/44 ,  F16K11/07

摘要： A sealing structure is configured in the following manner. When a packing having a pair of sealing portions formed at opposite edge portions of the outer peripheral surface thereof is installed in a land portion of a spool, the outside diameter of the packing is made smaller than the diameter of a slide surface of a spool hole. In a state in which the outer periphery of the land portion opposes the slide surface and a pressurized fluid is supplied from a gas supply channel to the first space of first and second spaces that are partitioned by the land portion, the edge portion of the packing positioned near the first space is elastically elongated in a radial direction due to pressure of the pressurized fluid and thereby narrows a gap formed between the first sealing portion and the slide surface of the spool hole or abuts the slide surface.