EP3464963A1 - Joint à gorge et son procédé de fabrication - Google Patents

Joint à gorge et son procédé de fabrication

Info

Publication number
EP3464963A1
EP3464963A1 EP17716519.8A EP17716519A EP3464963A1 EP 3464963 A1 EP3464963 A1 EP 3464963A1 EP 17716519 A EP17716519 A EP 17716519A EP 3464963 A1 EP3464963 A1 EP 3464963A1
Authority
EP
European Patent Office
Prior art keywords
ring seal
sealing
support element
seal according
base body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17716519.8A
Other languages
German (de)
English (en)
Inventor
Eike HYLLA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN Energy Solutions SE
Original Assignee
MAN Energy Solutions SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Energy Solutions SE filed Critical MAN Energy Solutions SE
Publication of EP3464963A1 publication Critical patent/EP3464963A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings

Definitions

  • the invention relates to a U-ring seal and a method for producing such a U-ring seal.
  • a trained as a shaft seal or rod seal U-ring seal with an annular sealing body and a nem support element is known.
  • the sealing base body has a U-shaped cross-section in radial section with concentrically extending sealing portions, wherein the sealing portions define a groove together with a connecting portion extending between the sealing portions.
  • the support element which holds the sealing portions under bias, formed as an annular spring.
  • annular sealing element made of a fluorine-containing polymer material namely PTFE (polytetrafluoroethylene)
  • PTFE polytetrafluoroethylene
  • PTFE is a chemical material that is chemically resistant to aggressive media.
  • a metal spring element formed as a support element under bias in which case there is the disadvantage that the spring steel of the spring element in contact with aggressive Media is subject to corrosion. Therefore, it is already known from practice to coat as supporting elements, metallic spring elements of U-ring seals, in particular to gild, in order to protect them from corrosion. However, this is costly and time consuming.
  • the present invention is based on the object, a novel U-ring seal and a method for producing such
  • the or each support element is formed as an integral part of the sealing body.
  • the or each support element by means of which the sealing sections of the sealing base body are held under prestress, is formed as an integral part of the sealing base body.
  • the metallic spring element is eliminated.
  • the or each support element consists of the thermoplastic material of the sealing base body, the thermoplastic material preferably being a fluorine-containing polymer material, in particular a PTFE material. Then, if the respective support element consists of the thermoplastic of the sealing body, this is resistant to aggressive media.
  • the or each support member is formed as a curved support arc, which extends between the preferably concentric with each other extending sealing portions of the sealing body.
  • the respective support arc has a thickness which is at most 5 °, preferably at most 4 °, particularly preferably at most 3 °, of the circumferential extent of the sealing base body.
  • FIG. 1 shows a cross section through a first inventive U-ring seal.
  • FIG. 2 a detail of the U-ring seal of FIG. 1; FIG.
  • FIG. 3 shows a cross section through a second U-ring seal according to the invention
  • FIG. 6 shows a detail of the U-ring seal of FIG. 5.
  • the invention relates to a U-ring seal.
  • the U-ring seal 10 has an annular sealing base body 1 1, which has seen in radial section a U-shaped cross-sectional contour.
  • This sealing body 1 1 has preferably concentric with each other extending sealing portions 12, 13 which are connected via a connecting portion 14 on one side with each other.
  • the sealing base body 1 1 is designed to be open, forming a groove 15.
  • the sealing portions 12, 13 of the seal body 1 1 define together with the connecting portion 14 extending therebetween of the seal body 1 1 in the radial section U-shaped cross-sectional contour of the seal body 1 first Facing away from the groove 15, outer sealing surfaces 16, 17 of the sealing portions 12, 13 form sealing surfaces of the U-ring seal 10, which are pressed upon construction of a corresponding pressure in the groove 15 against sealing surfaces of a component, not shown, in which the U-ring seal 10 is received ,
  • a radially inner sealing surface 16 of a radially inner sealing portion 12 is pressed radially inward
  • a radially outer sealing surface 17 of a radially outer sealing portion 13 is pressed radially outward.
  • the U-ring seal 10, namely the sealing portions 12, 13 of the seal body 1 1 of the U-ring seal 1 0 are held by support members 18 under bias, said support members 18 are formed as an integral part of the seal body 1 1.
  • the sealing base body 1 1 and the integral support elements 18 thereof are made of a thermoplastic material, preferably made of a fluorine-containing polymer material, particularly preferably of a PTFE (polytetrafluoroethylene material).
  • U-ring seal 10 can be used in particular when the same comes into contact with aggressive media.
  • the design of the U-ring seal made of a PTFE material is preferred, it may alternatively be made of a POM material or a PA material.
  • the sealing base body 1 1 and the integral support elements 18 thereof are always made of the same thermoplastic material.
  • the support members 18 are formed as arched support arches extending at defined circumferential positions of the seal base 1 1 between the sealing portions 12, 13 of the seal body 1 1, wherein in Fig. 1 and 2, each of the support arches as off the groove 15 out arched support arc is formed and each extends approximately in the radial direction. It should be noted at this point that, in contrast to the embodiment of FIGS. 1 and 2, it is also possible that the support elements are formed as curved into the groove 15 support arches, which in turn extend in the radial direction. See the embodiment of FIGS. 5 and 6.
  • arched support arches out of the groove 15 and, on the other hand, arched support arches into the groove are used as support elements 18 in combination with one another.
  • the support members 18 extend in the radial direction, they are therefore not inclined relative to the radial direction.
  • the respective support element 18 encloses an angle with the radial direction, ie is inclined relative to the radial direction, this angle being at most 45 °, preferably at most 30 °, particularly preferably at most 20 °. See the embodiment of FIGS. 3 and 4.
  • the support elements 18 with the radial direction at an angle between 5 ° and 45 °, preferably an angle between 10 ° and 30 °, more preferably an angle between 1 0 ° and 20 °.
  • a plurality of support elements 18 are distributed over the circumference of the seal body 1 1, wherein this distribution of the support members 18 in the circumferential direction seen equidistant (see the embodiment of FIGS. 1, 2 and Fig. 3, 4) or not equidistant (see the embodiment of FIG. 5, 6) may be.
  • the respective support element 18 has a defined thickness, wherein this thickness is at most 5 °, particularly preferably at most 4 °, particularly preferably at most 3 °, of the circumferential extent of the sealing base body 10.
  • this circumferential extent refers to the circumferential extension of the radially inner sealing section 12 or to the circumferential extent of the radially outer sealing section 13 of the sealing base body 11.
  • the main body of the U-ring seal 10 from the annular sealing body 1 1 and the integral support elements 18 can be produced by compression molding, sintering or by 3D printing.
  • the choice of the corresponding manufacturing method depends on the thermoplastic from which the sealing base 1 1 and the integral support elements 18 thereof consist. Then, when a PTFE material is used, the manufacturing method is preferably compression molding or sintering.
  • the U-ring seal after the injection molding or SD printing in the region of the sealing surfaces 16, 17 of the sealing portions 12, 13 subjected to post-processing, in particular by turning to provide sealing surfaces with the required quality.
  • the invention proposes for the first time a U-ring seal 10, wherein support elements 18, which serve the bias of the sealing portions 12, 13 of the seal body 1 1 of the U-ring seal 1 0, are an integral part of the seal body 1 1 and made of the same thermoplastic material as the seal body 1 1 are.
  • Particularly preferred as the material is a PTFE material use, which can be easily and reliably processed in particular by compression molding or sintering. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

Joint à gorge (10), comprenant : un corps de base (11) annulaire constitué d'une matière thermoplastique, comprenant un contour de section transversale en U présentant des parties d'étanchéité (12, 13) qui définissent une gorge (15) avec une partie de raccordement (14), s'étendant entre les parties d'étanchéité (12, 13), du corps de base (11) ; et au moins un élément d'appui pour les parties d'étanchéité (12, 13), l'élément ou chaque élément d'appui (18) faisant partie intégrante du corps de base (11).
EP17716519.8A 2016-06-03 2017-04-07 Joint à gorge et son procédé de fabrication Withdrawn EP3464963A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016110268.7A DE102016110268A1 (de) 2016-06-03 2016-06-03 Nutringdichtung und Verfahren zum Herstellen derselben
PCT/EP2017/058346 WO2017207146A1 (fr) 2016-06-03 2017-04-07 Joint à gorge et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP3464963A1 true EP3464963A1 (fr) 2019-04-10

Family

ID=58530543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17716519.8A Withdrawn EP3464963A1 (fr) 2016-06-03 2017-04-07 Joint à gorge et son procédé de fabrication

Country Status (7)

Country Link
US (1) US20190301614A1 (fr)
EP (1) EP3464963A1 (fr)
JP (1) JP2019518180A (fr)
KR (1) KR20190012223A (fr)
CN (1) CN109312865A (fr)
DE (1) DE102016110268A1 (fr)
WO (1) WO2017207146A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220282790A1 (en) * 2019-12-09 2022-09-08 Parker-Hannifin Corporation Sealing elements with integrated intrinsic energizers

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1060532A (fr) * 1952-07-23 1954-04-02 Joint en matière plastique pour presses hydrauliques et autres machines
FR1499369A (fr) * 1966-09-05 1967-10-27 Bennes Marrel Perfectionnements aux joints d'étanchéité coulissants
JPS6088277A (ja) * 1983-10-21 1985-05-18 Sakagami Seisakusho:Kk パツキン
JPS6231774A (ja) * 1985-08-05 1987-02-10 Taigaasu Polymer Kk パツキン
JPS6431257U (fr) * 1987-08-19 1989-02-27
JPH06137438A (ja) * 1992-10-29 1994-05-17 Sanden Shoji Kk 環状シールパッキン
DE19812041A1 (de) * 1998-03-19 1999-10-14 Bosch Gmbh Robert Dichtelement
DE19815442A1 (de) 1998-04-07 1999-10-14 Freudenberg Carl Fa Verfahren und Vorrichtung zum Einfügen einer ringförmigen Feder in eine radial nach außen offene Nut einer ringförmigen Dichtlippe einer Wellen- oder Stangendichtung
US20040150168A1 (en) * 2003-01-18 2004-08-05 Heathcott Joe William Power end seal
DE102009016552A1 (de) 2009-04-06 2010-10-21 Tectrion Gmbh Ringförmiges Dichtungselement aus Polytetrafluorethylen (PTFE)
CA2785437A1 (fr) * 2009-12-29 2011-07-28 Saint-Gobain Performance Plastics Corporation Ressorts et procedes pour les former
DE102011080970B4 (de) * 2011-08-15 2020-01-09 Elringklinger Ag Dichtung zum Abdichten eines Dichtspalts und Verfahren zum Herstellen einer solchen Dichtung
DE102013211598A1 (de) * 2012-09-26 2014-03-27 Schaeffler Technologies Gmbh & Co. Kg Dichtung
DE102013217397A1 (de) * 2013-09-02 2015-03-05 Sumitomo (Shi) Cyclo Drive Germany Gmbh Dichtung
US20150115542A1 (en) * 2013-10-30 2015-04-30 Deere & Company Ring seal with a double step sealing joint
DE102014207188B8 (de) * 2014-04-15 2015-12-24 Eagleburgmann Germany Gmbh & Co. Kg Gleitringdichtungsanordnung mit Balgelement
DE202014011034U1 (de) * 2014-11-28 2017-06-23 Elringklinger Ag Dichtelement
CN104455421A (zh) * 2014-12-07 2015-03-25 无锡高卓流体设备有限公司 一种新型密封圈
CN104763341B (zh) * 2015-04-28 2017-09-26 江汉石油钻头股份有限公司 一种牙轮钻头轴承单金属密封结构
CN104930192A (zh) * 2015-06-11 2015-09-23 浙江清宇管业有限公司 t型橡胶圈及植物纤维增强水泥管
CN105114626B (zh) * 2015-07-24 2017-01-25 西华大学 具有可控波形密封端面密封环的机械密封装置

Also Published As

Publication number Publication date
US20190301614A1 (en) 2019-10-03
CN109312865A (zh) 2019-02-05
KR20190012223A (ko) 2019-02-08
JP2019518180A (ja) 2019-06-27
DE102016110268A1 (de) 2017-12-07
WO2017207146A1 (fr) 2017-12-07

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