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WO1998009102A1 - Joints d'etancheite - Google Patents

Joints d'etancheite Download PDF

Info

Publication number
WO1998009102A1
WO1998009102A1 PCT/GB1997/002276 GB9702276W WO9809102A1 WO 1998009102 A1 WO1998009102 A1 WO 1998009102A1 GB 9702276 W GB9702276 W GB 9702276W WO 9809102 A1 WO9809102 A1 WO 9809102A1
Authority
WO
WIPO (PCT)
Prior art keywords
arms
gasket
bodies
gap
arm
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.)
Ceased
Application number
PCT/GB1997/002276
Other languages
English (en)
Inventor
Alan William Atkinson
Stephen Peter Bond
John Robert Hoyes
Gary Briggs
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.)
Flexitallic Ltd
Original Assignee
Flexitallic Ltd
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 Flexitallic Ltd filed Critical Flexitallic Ltd
Priority to AU40244/97A priority Critical patent/AU4024497A/en
Publication of WO1998009102A1 publication Critical patent/WO1998009102A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J15/0825—Flat gaskets laminated
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0837—Flat gaskets with an edge portion folded over a second plate or shim
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/085—Flat gaskets without fold over
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0856—Flat gaskets with a non-metallic coating or strip
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0875—Flat gaskets comprising welds

Definitions

  • This invention is concerned with gaskets which are adapted when clamped between two bodies to seal the gap between the bodies around a chamber or passage jointly defined by the bodies and a method of sealing such gaps.
  • a gasket may be used, for example, for sealing the gap between flanges at the ends of pipes .
  • Gaskets require to be resilient in order to achieve a seal.
  • the resilience is achieved by using inherently resilient material such as rubber or cork.
  • the resilience is achieved by utilising springy metal which resists being bent out of its initial shape.
  • This invention is concerned with a gasket of the latter type which comprises a sealing member which forms a closed loop extending around a hole which corresponds to the chamber or passage.
  • gaskets are often in the shape of an annular ring but may have other shapes. Accordingly, the term "ring" is used herein to include a continuous band surrounding a hole of any shape.
  • Known gaskets made of springy metal have sealing members which have generally C or V-shaped transverse cross-sections (see U.S. 54,877,272 for a V-shaped cross- section) .
  • the cross-section comprises two arms which project either inwardly or outwardly of the hole, the arms being adapted to each resiliently engage one of the bodies to form a seal around said hole .
  • These gaskets form a seal along a single "line of sealing" with the seal of one arm directly beneath the seal of the other arm.
  • the single line of sealing has the disadvantages that any failure along this line can result in leakage, and that the sealing member is poorly “balanced", ie the load on it is concentrated on a small area, and may easily be deformed.
  • G.B. 495,874 shows a resilient seal manufactured from a solid blank of mild steel.
  • Annular corner extensions are provided that project inwardly and outwardly to provide opposed inner and outer seals. The ends of the extensions are rounded to provide bearing surfaces. Whilst the corner extensions of each inner and outer seal are able to flex towards each other to a limited degree, that movement during which effective seals are able to be provided is necessarily restricted owing to the limited length of the extensions and their considerable thickness. Also because of these factors, the degree of rotation that can occur (that being at a particular circumferential location) whereby one of the inner or outer seals is spaced further apart than the other is necessarily limited without one of the seals actually failing.
  • the gasket in a gasket adapted, when clamped between two bodies to seal the gap between the bodies around a chamber or passage jointly defined by the bodies, the gasket comprises a sealing member which forms a closed loop extending around a hole which corresponds to the chamber or passage, wherein the sealing member has a transverse cross-section which is generally X-shaped and comprises two arms which project inwardly of the hole, and two arms which project outwardly of the hole, the inwardly projecting arms being adapted to each resiliently engage one of the bodies to form a first seal around said hole, and the outwardly projecting arms being adapted to each resiliently engage one of the bodies to form a second seal around said hole characterised in that the sealing member is formed from springy metal and that each arm has a free end and a surface adapted to seal with a body located away from the free end and provided by an outwardly curved surface of the arm.
  • the first and second seals are on spaced, curved lines of sealing and are independent of one another so that the possibility of leakage is reduced. Furthermore, because the first and the second seals are spaced from one another, the sealing member is well balanced.
  • each arm may present a convex surface to the body which it engages so that the line of engagement of each arm with one of the bodies is spaced from a free end of the arm, eg. each arm may be bow- shaped.
  • Each arm may be of generally uniform thickness along its length with the portion of each arm that is located away from the surface that is adapted to seal with a body towards the free end of that arm also being of the generally uniform thickness.
  • each inwardly projecting arm may be arranged to change to move further away from the free ends of those arms or towards the free ends of those arms as the gap between those arms alters.
  • the sealing surface of each outwardly projecting arm may be arranged to change to move further away from the free ends of those arms or towards the free ends of those arms as the gap between those arms alters.
  • the sealing surface of each inwardly projecting arm may be arranged to move away from the free ends of those arms when the gap between the outwardly projecting arms reduces to be less than the gap between the inwardly directed arms.
  • the sealing surface of each outwardly projecting arm may be arranged to move away from the free ends of those arms when the gap between the inwardly projecting arms reduces to be less than the gap between the outwardly directed arms.
  • a gasket according to the invention may have its sealing member formed from two pieces of metal, one of the pieces overlying the other.
  • each piece forms one of said inwardly projecting arms and one of said outwardly projecting arms.
  • the pieces may be in the form of sheets, eg. of steel.
  • the two pieces may be secured together by a sealing joint, the term "sealing joint" being used herein to indicate a joint which will not allow the passage of fluid from the chamber or passage around which the gasket seals.
  • the sealing joint is located in the central region of the sealing member, the central region being located between said first and said second seals.
  • the sealing joint is to prevent leakage between the pieces and to secure the pieces together.
  • the sealing joint may be formed by a continuous weld or by adhesive.
  • the sealing member is formed from two pieces of metal arranged side-by-side, one piece forming both of said inwardly projecting arms and the other piece forming both of said outwardly projecting arms, the two pieces being secured together by a joint located in a central region of the sealing member, the central region being located between said first and said second seals.
  • the two pieces may be both C- shaped in transverse cross-section with the open sides of the C's facing in opposite directions.
  • the joint does not need to be a sealing joint as there is no danger of leakage between the pieces.
  • the sealing member is formed in one piece as an extrusion which is formed into a loop and has its ends welded together.
  • the sealing member is formed by forming a ring to the required transverse cross-section by machining or by a combination of machining and deformation.
  • the ring can be cut from a sheet, formed from strip with the ends being welded together, cut from the end of a cylinder etc.
  • slots can be machined into the top and the bottom surfaces of the ring and the ring (which then has a cross- section in the shape of an "H") and this machined ring can be bent to an X-cross section.
  • the slots can alternatively be machined into the inside and outside surfaces of the ring.
  • a gasket according to the invention may also comprise layers of deformable material secured to said arms at least in the areas thereof which engage said bodies.
  • This deformable material which may, for example, be expanded graphite, soft metal or PTFE, is not intended to provide a sealing force but is intended to fill small fissures or cracks in the body or the arm to thereby improve the seal .
  • the arms may be provided with ridges running longitudinally of the sealing member and the deformable material may cover these ridges. The ridges have the function of reducing the possibility that the deformable material will be extruded from the seal.
  • the gasket may also comprise a compression- limiting stop.
  • the stop may be provided by a thickened portion of the sealing member in a central region thereof.
  • a compression-limiting stop may be secured to the sealing member at a central region thereof which is between said first and said second seals.
  • Compression limiting stops may be welded or otherwise secured to both the top and the bottom of the sealing member.
  • the present invention also includes two bodies incorporating a gasket as herein referred to in which the gasket seals the gap between the bodies around a chamber or passage jointly defined by the bodies.
  • a method of sealing the gap between two bodies around a chamber or passage jointly defined by the bodies with a gasket comprises locating a sealing member of the gasket to form a closed loop extending around a hole which corresponds to the chamber or passage, the method comprising causing two arms of the sealing member to project inwardly of the hole, and two arms to project outwardly of the hole, the inwardly projecting arms each resiliently engaging one of the bodies to form a first seal around said hole and the outwardly projecting arms each resiliently engaging one of the bodies to form a second seal around the hole, the method being characterised in that the sealing member is formed from springy metal with each arm being caused to sealingly engage a body at a location spaced from the free end of the arm at an outwardly curved surface of the arm.
  • the method may comprise the sealing surface of each inwardly projecting arm changing to move further away from the free ends of those arms or towards the free ends of those arms upon alteration of the gap between those arms.
  • the method may comprise the sealing surface of each outwardly projecting arm changing to move further away from the free ends of those arms or towards the free ends of those arms as the gap between those arms alters.
  • the sealing surface of each inwardly projecting arm may move away from the free ends of those arms when the gap between the outwardly projecting arms reduces to be less than the gap between the inwardly directed arms.
  • the sealing surface of each outwardly projecting arms may move away from the free ends of those arms when the gap between the inwardly projecting arms reduces to be less than the gap between the outwardly directed arms.
  • the present invention also includes a method of sealing the gap between two bodies around a chamber or passage jointly defined by the bodies with a gasket as herein referred to.
  • Figure 1 is a transverse cross-sectional view taken through one side of the first illustrative gasket
  • Figures 2 to 5 are views similar to Figure 1 but of the second to fifth illustrative gaskets, respectively;
  • Figures 6, 7 and 8 are schematic views showing a gasket sealing with two flanges in a large spacing, a reduced spacing and at a rotational relationship respectively.
  • the first illustrative gasket 10 shown in Figure 1 is adapted when clamped between two bodies (not shown) , for example pipe flanges, to seal the gap between the bodies around a chamber or passage jointly defined by the bodies.
  • the gasket 10 comprises a sealing member which forms a closed circular ring which extends around a hole through the gasket which corresponds to the chamber or passage.
  • Figure 1 shows a transverse cross-sectional view through one side of the ring.
  • the sealing member of the gasket 10 is formed from two pieces 12 and 14 of springy sheet steel. Each piece
  • the joint 16 is a sealing joint, ie. it seals between the pieces 12 and 14 completely around the gasket.
  • the joint 16 is located in the central region of the sealing member.
  • the sealing member of the gasket 10 has a transverse cross-section which is generally X-shaped (as can be seen from Figure 1) .
  • This cross-section comprises two arms 12a and 14a which project inwardly of the hole through the gasket 10, and two arms 12b and 14b which project outwardly of said hole.
  • Each piece 12 and 14 forms one of the inwardly projecting arms and one of the outwardly projecting arms.
  • the inwardly projecting arms 12a and 14a are adapted to each resiliently engage one of the bodies, when the gasket 10 is in use, in order to form a first seal around the hole through the gasket.
  • the arm 12a engages one of the bodies, eg. a first flange, and, as the clamping pressure increases, the deformation of the arm 12a causes pressure to build up along the line of engagement between the arm and the flange. The same occurs in relation to the arm 14a and the other body, eg. a second flange.
  • the outwardly projecting arms 12b and 14b are adapted to each resiliently engage one of the bodies to form a second seal around the hole through the gasket .
  • the arms 12b and 14b act in similar manner to the arms 12a and 14a to press against the bodies.
  • the lines of engagement of the arms 12b and 14b with the respective bodies constitute a second seal .
  • the arms 12a, 12b, 14a, and 14b are bow-shaped, bowing upwardly in the case of the arms 12a and 12b and downwardly in the case of the arms 14a and 14b to present convex surfaces to said bodies. Each arm, thus, presents a convex surface to the body which it engages. Because of the bow-shape of the arms, the line of engagement of each arm 12a, 12b, 14a and 14b with its respective body is spaced from a free end of the arm, ie. the end which is remote from the joint 16.
  • the gasket 10 also comprises layers of deformable material 18, specifically expanded graphite, which are secured by adhesive to the convex outer surfaces of the arms 12a, 12b, 14a and 14b. Thus, these layers 18 are on the areas of the arms which engage said bodies.
  • the deformable material layers 18 are very thin (10 to 500 microns, eg. 50 to 200 microns) .
  • the deformable material is intended to improve sealing by filling cracks or fissures in the bodies or arms.
  • the gasket 10 provides two seals (one provided by the arms 12a and 14a and the other by the arms 12b and 14b) so that the possibility of leakage is reduced.
  • the gasket 10 is also well balanced because the first and the second seals thereof are on opposite sides of the central region at which the joint 16 is formed.
  • the second illustrative gasket 20 shown in Figure 2 is the same as the first illustrative gasket 10 except as hereinafter described and like reference numerals are used in Figure 2 for like parts.
  • the gasket 20 differs from the gasket 10 in that the arms 12a, 12b, 14a and 14b are provided with ridges 22 running longitudinally of the sealing member, ie. around the ring formed by the sealing member, and the deformable material 18 covers these ridges.
  • the ridges 22, which are produced by rolling, are intended to reduce the possibility of the deformable material 18 being extruded away from the first seal or the second seal .
  • the third illustrative gasket 30 shown in Figure 3 is the same as the first illustrative gasket 10 except as hereinafter described and like reference numerals are used in Figure 3 for like parts.
  • the gasket 30 differs from the gasket 10 in that the pieces 12 and 14 from which the sealing member is formed have a greater thickness in the central region adjacent to the joint 16 and the arms taper so that they have reduced thickness at their free ends.
  • the increased thickness in the central region provides a compression-limiting stop of the sealing member so that the gasket 30 cannot be compressed below the combined thickness of the pieces 12 and 14 in the central region. This prevents the sealing member from being compressed so far that it is no longer resilient.
  • the tapering of the arms gives resilience over a wider load range.
  • the pieces 12 and 14 of the gasket 30 can be produced by machining annular sheets of constant thickness to the profile shown in Figure 3 or by extruding strips with this profile, forming them into a ring and welding their ends together.
  • the fourth illustrative gasket 40 shown in Figure 4 is the same as the first illustrative gasket 10 except as hereinafter described and like reference numerals are used in Figure 4 for like parts.
  • the gasket 40 has pieces 12 and 14 of constant thickness but a compression- limiting stop is provided in the central region adjacent to the joint 16 by stop pieces 42 and 44 which are welded to the pieces 12 and 14, respectively, in the dips between the arms 12a and 12b, and 14a and 14b, respectively.
  • the layers of deformable material may be included but are omitted from Figure 4.
  • the fifth illustrative gasket 60 shown m Figure 5 differs from the first illustrative gasket 10 in that it has its sealing member formed from two pieces of metal 62 and 64 arranged side-by-side which together give the sealing member a transverse cross-section which is generally X-shaped.
  • the pieces 62 and 64 are both C- shaped in transverse cross-section and are arranged back- to-back with the open side of the piece 62 facing inwardly of the hole through the gasket and the open side of the piece 64 facing outwardly of said hole.
  • the pieces 62 and 64 are joined by a weld 66 which acts as a joint holding them in the back-to-back relationship.
  • the piece 62 forms two inwardly projecting arms 62a and 62b which act in similar manner to the arms 12a and 14a of the gasket 10.
  • the piece 64 forms two outwardly projecting arms 64a and 64b which act in a similar manner to the arms 12b and 14b of the gasket 10.
  • a first seal is formed by the arms 62a and 62b and a second seal is formed by the arms 64a and 64b. Leakage between the arms 62a and 62b is prevented by the central portion of the piece 62. Thus, the joint 66 does not have to be a sealing joint.
  • the gasket 60 is balanced since the first and the second seals are on opposite sides of a central region of the gasket where the joint 66 secures the pieces 62 and 64 together.
  • the arms 62a, 62b, 64a and 64b are also provided with layers of deformable material 68 which are similar to the layers 18 of the gasket 10 and act in a similar manner.
  • any of the illustrative gaskets can be given compression-limiting stops similar to those 42 and 44 of the gasket 40 or ridges similar to the ridges 22.
  • gaskets could also be made out of one piece only such as by machining or extruding the gaskets.
  • gaskets could be used to seal the flanges 70 and 72 shown in Figures 6 to 8. For convenience though that sealing will be described in relation to the gasket 10 alone.
  • the gasket 10 seals the flanges 70 and 72 at inner and outer locations with the sealing parts of the arms being towards the ends of the arms on the arcuate surfaces of the arms .
  • the part of each arm that provides the seal moves inwardly, away from the free ends of the arms. In all cases though a convex or outwardly curved surface of the arms provides the seal.
  • the gasket When one flange 70 is tilted or rotated relative to the other flange, (or where one flange is not parallel to the other) as shown in figure 8, the gasket still seals at inner and outer regions with the portion of the arms 12b and 14b that provide the seal being further away from the ends of those arms than the position of the arms 12a and 14a that provide the other seal. Tilting or rotation in the other direction will still allow two radially spaced seals to be provided albeit that the parts of the arms that provide the seals will change.
  • Tilting or rotation of one flange relative to the other may occur as a result of uneven tightening of bolts connecting the flanges or as a result of the flanges being relatively flimsy, or as a result of thermal effects or as a result of excessive internal pressure, for instance.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

La présente invention concerne un joint d'étanchéité (10), lequel comprend un élément d'étanchéité qui forme une boucle fermée s'étendant autour d'un trou. L'élément d'étanchéité est réalisé dans un métal résilient, il présente une section transversale généralement en forme de X, et il comprend deux bras (12a, 14a) qui sont projetés vers l'intérieur du trou et deux bras (12b, 14b) qui sont projetés vers l'extérieur du trou. Les bras projetés vers l'intérieur forment un premier joint d'étanchéité autour du trou, et les bras projetés vers l'extérieur forment un deuxième joint d'étanchéité autour du trou. Ces bras présentent une surface convexe éloignée de leurs extrémités libres, qui vient se placer sur les éléments dont ils doivent assurer l'étanchéité.
PCT/GB1997/002276 1996-08-29 1997-08-26 Joints d'etancheite Ceased WO1998009102A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU40244/97A AU4024497A (en) 1996-08-29 1997-08-26 Gaskets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9618061A GB2316720A (en) 1996-08-29 1996-08-29 Gasket
GB9618061.7 1996-08-29

Publications (1)

Publication Number Publication Date
WO1998009102A1 true WO1998009102A1 (fr) 1998-03-05

Family

ID=10799124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/002276 Ceased WO1998009102A1 (fr) 1996-08-29 1997-08-26 Joints d'etancheite

Country Status (3)

Country Link
AU (1) AU4024497A (fr)
GB (1) GB2316720A (fr)
WO (1) WO1998009102A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010127649A1 (fr) 2009-05-08 2010-11-11 Federal-Mogul Sealing Systems Gmbh Elément d'étanchéité destiné à assurer l'étanchéité de faces de bride dans des moteurs à combustion interne
WO2018134594A1 (fr) * 2017-01-19 2018-07-26 Flexitallic Investments, Inc. Joints d'étanchéité

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2291590A1 (fr) * 2008-06-21 2011-03-09 Federal-Mogul Sealing Systems GmbH Joint destiné à étancher des surfaces de bride de moteurs à combustion interne
EP2494195B1 (fr) * 2009-10-28 2014-08-20 Aktiebolaget SKF Anneau d'étanchéité en forme de x pour un palier, en particulier pour un palier à roulement d'une éolienne
FR2997324B1 (fr) * 2012-10-31 2015-05-15 Snecma Joint statique metallique annulaire performant a bas cout pour hautes pressions et grands diametres

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB495874A (en) 1937-04-23 1938-11-22 Babcock & Wilcox Ltd Improvements in or relating to joints between pipes or other members
GB1124145A (en) * 1966-06-06 1968-08-21 North American Aviation Inc Improvements in dual spring seals
FR2031924A5 (fr) * 1969-02-13 1970-11-20 Commissariat Energie Atomique
US4877272A (en) 1986-04-01 1989-10-31 Societe Anonyme: Societe Europeene De Propulsion Metal static seal and assembly comprising such a seal
EP0773392A1 (fr) * 1995-11-07 1997-05-14 Specialist Sealing Limited Joint d'étanchéité

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047301A (en) * 1960-02-12 1962-07-31 Lockheed Aircraft Corp Static sealing assembly
GB1190537A (en) * 1967-10-04 1970-05-06 Euratom Ring Seal
DE2546628A1 (de) * 1975-10-15 1977-04-28 Euratom Dichtungssystem fuer hochdruck und vakuum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB495874A (en) 1937-04-23 1938-11-22 Babcock & Wilcox Ltd Improvements in or relating to joints between pipes or other members
GB1124145A (en) * 1966-06-06 1968-08-21 North American Aviation Inc Improvements in dual spring seals
FR2031924A5 (fr) * 1969-02-13 1970-11-20 Commissariat Energie Atomique
US4877272A (en) 1986-04-01 1989-10-31 Societe Anonyme: Societe Europeene De Propulsion Metal static seal and assembly comprising such a seal
EP0773392A1 (fr) * 1995-11-07 1997-05-14 Specialist Sealing Limited Joint d'étanchéité

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010127649A1 (fr) 2009-05-08 2010-11-11 Federal-Mogul Sealing Systems Gmbh Elément d'étanchéité destiné à assurer l'étanchéité de faces de bride dans des moteurs à combustion interne
WO2018134594A1 (fr) * 2017-01-19 2018-07-26 Flexitallic Investments, Inc. Joints d'étanchéité

Also Published As

Publication number Publication date
GB2316720A (en) 1998-03-04
GB9618061D0 (en) 1996-10-09
AU4024497A (en) 1998-03-19

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