US20050189724A1 - Metal gasket - Google Patents

Metal gasket Download PDF

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Publication number
US20050189724A1
US20050189724A1 US11/063,073 US6307305A US2005189724A1 US 20050189724 A1 US20050189724 A1 US 20050189724A1 US 6307305 A US6307305 A US 6307305A US 2005189724 A1 US2005189724 A1 US 2005189724A1
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US
United States
Prior art keywords
gasket
stopper layer
layer
sealing beads
layers
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.)
Abandoned
Application number
US11/063,073
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English (en)
Inventor
Jeorg Schmitz
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.)
Federal Mogul LLC
Federal Mogul World Wide LLC
Original Assignee
Federal Mogul LLC
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 Federal Mogul LLC filed Critical Federal Mogul LLC
Priority to US11/063,073 priority Critical patent/US20050189724A1/en
Assigned to FEDERAL-MOGUL CORPORATION reassignment FEDERAL-MOGUL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHMITZ, JEORG
Priority to CA002556707A priority patent/CA2556707A1/en
Priority to EP05723552A priority patent/EP1740817B1/en
Priority to JP2007500941A priority patent/JP2007525629A/ja
Priority to RU2006134009/06A priority patent/RU2358172C2/ru
Priority to PCT/US2005/005717 priority patent/WO2005081957A2/en
Assigned to FEDERAL-MOGUL WORLD WIDE, INC. reassignment FEDERAL-MOGUL WORLD WIDE, INC. CORRECTED COVER SHEET TO CORRECT ASSIGNEE NAME, PREVIOUSLY RECORDED AT REEL/FRAME 016312/0761 (ASSIGNMENT OF ASSIGNOR'S INTEREST) Assignors: SCHMITZ, JEORG
Publication of US20050189724A1 publication Critical patent/US20050189724A1/en
Assigned to CITIBANK, N.A. AS COLLATERAL TRUSTEE reassignment CITIBANK, N.A. AS COLLATERAL TRUSTEE SECURITY AGREEMENT Assignors: FEDERAL-MOGUL WORLD WIDE, INC.
Priority to US13/091,191 priority patent/US8556271B2/en
Assigned to FEDERAL-MOGUL WORLD WIDE LLC (FORMERLY FEDERAL-MOGUL WORLD WIDE, INC.) reassignment FEDERAL-MOGUL WORLD WIDE LLC (FORMERLY FEDERAL-MOGUL WORLD WIDE, INC.) RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITIBANK, N.A.
Abandoned legal-status Critical Current

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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
    • F16J15/0818—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
    • F16J2015/0862—Flat gaskets with a bore ring
    • 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 relates generally to multilayer metal gaskets, and particularly to those having at least two active bead layers separated by a partial stopper layer.
  • Multilayer metal gaskets are commonly used in engine applications to provide a seal between two members that are joined by bolting or other clamping means, such as between a cylinder head and an engine block, or between an exhaust manifold and the block.
  • gasket configurations are known to the art and serve a variety of purposes.
  • a particular application to which the present invention is directed is one in which the gasket is required to be of minimal thickness and able to seal effectively under fairly low contact pressure or able to conform to protrusions or recessions at the seal interface, such as in a cylinder head application where the cylinder liner protrudes above the top sealing deck of the engine block. Under these less than ideal sealing conditions, it is difficult to construct a seal that satisfies all of the criteria that such an application calls for.
  • U.S. Pat. No. 5,544,899 discloses a multilayer metal gasket having a pair of functional layers formed with aligned openings and aligned beads surrounding the openings.
  • a partial stopper layer is interposed between the functional layers in surrounding relation to the openings.
  • the stopper layer extends only partially across the sealing beads, enabling the beads to collapse against themselves under a clamping load. The concern here is that the full collapse of the beads could cause at least some degree of overcompression and permanent deformation of the beads and thus impair the sealing performance of the gasket.
  • the stopper layer spans the full width of the beads and is welded on the opposite sides as well as deformed into nesting relation with one of the two opposing beads.
  • stopper layer in this embodiment would serve to constrain the deformation of the gasket layer that it is joined to by being welded on opposite sides of the bead. Consequently, the constrained functional layer compresses at a much higher load than that of the other layer, and the overall compression strength of the gasket increases, making it perhaps unsuitable for those applications calling for minimal gasket thickness and low compressibility.
  • U.S. Pat. No. 5,628,518 discloses another type of multilayer metal gasket which requires the middle layer to be a full layer rather than only a partial layer. While this may be suitable for many gasket applications, the full middle layer adds to the over all thickness of the gasket and thus may not be suitable for applications calling for minimal gasket thickness.
  • a multilayer metal gasket constructed according to a presently preferred embodiment of the invention comprises at least a set of first and second gasket layers having generally planar bodies and formed with at least one aligned hole and at least one associated sealing bead in each of the gasket layers aligned opposite one another and projecting out of the plane of their respective bodies in radially outwardly spaced surrounding relation to the hole.
  • the gasket further includes a partial stopper layer disposed between the gasket layers and having an area less than that of the either of the gasket layers.
  • the stopper layer extends fully across the sealing bead from a position radially inward of the sealing beads to a position radially outward of the sealing beads and is fixed to at least one of the gasket layers adjacent only one side of the sealing beads and is free on the opposite side of the sealing beads.
  • One advantage of the present invention is that it provides a gasket of minimal thickness with relatively soft compressibility and controlled deformation of the sealing beads.
  • the stopper layer By extending fully across the sealing beads, the stopper layer has the beneficial effect of providing generally uniform compression of the complete sealing bead in all layers of the gasket. Further, by being joined to only one side and being free on the opposite side of the sealing beads, the stopper layer does not overly constrain deformation of the sealing bead on the gasket layer to which the stopper layer is joined, thereby giving more uniform deformation of the sealing beads.
  • FIG. 1 is a fragmentary plan view of a gasket constructed according to a presently preferred embodiment of the invention
  • FIG. 2 is an enlarged cross-sectional view taken along lines 2 - 2 of FIG. 1 ;
  • FIG. 3 is a view like FIG. 2 but showing the gasket in a compressed condition
  • FIG. 4 is a cross-sectional view of an alternative embodiment of the invention.
  • FIG. 5 is a cross-sectional view of still a further alternative embodiment of the invention.
  • FIG. 6 is a cross-sectional view of still a further embodiment of the invention.
  • FIG. 7 is a cross-sectional view of still a further embodiment of the invention.
  • a multilayer metal gasket constructed according to a first presently preferred embodiment of the invention is shown generally at 10 in FIGS. 1 and 2 and includes at least a set of first and second gasket layers 12 , 14 and a partial stopper layer 16 between the gasket layers 12 , 14 .
  • the gasket layers 12 , 14 are each fabricated of elastic metal sheet material, such as stainless steel or the like, and are formed with various openings through the gasket layers, including at least one and often multiple cylinder openings 18 for engine cylinders 20 of an engine block 22 which, in some engines, may be fitted with a cylinder liner 24 shown in FIG. 2 .
  • each gasket layer 12 , 14 is formed with a respective elastic sealing bead 26 , 28 that encircle the opening 18 .
  • the sealing beads 26 , 28 are formed as deformation of the first and second gasket layers 12 , 14 and comprise a ridge of gasket layer material, preferably in the shape of a full bead, which projects from a plane of a main body 30 , 32 of the respective gasket layers 12 , 14 .
  • the sealing beads 26 , 28 of the first and second gasket layers 12 , 14 are arranged in opposing, aligned relationship such that they oppose one another, as shown in the embodiment of FIG. 2 .
  • the sealing beads 26 , 28 are spaced radially outwardly of the cylinder opening 18 , defining radially inner land regions 34 , 36 surrounding the opening 18 and separating the sealing beads 26 , 28 from the opening 18 .
  • the land regions 34 , 36 are part of the main body 30 , 32 of the gasket layers 12 , 14 and are preferably planar and parallel to one another.
  • a rubberized gasket coating 42 may be applied to the outer exposed surfaces of the gasket layers 12 , 14 .
  • the partial stopper layer 16 is arranged between the gasket layers 12 , 14 , and more specifically is interposed between the sealing beads 26 , 28 .
  • the partial stopper layer is “partial” in the sense that it has an area considerably less than the area of either of the first or second gasket layers 12 , 14 .
  • the partial stopper layer 16 extends from or near the cylinder opening 18 radially outwardly to the land regions 38 , 40 just beyond the sealing beads 26 , 28 .
  • the partial stopper layer 16 is fixed, preferably by welding, to at least one and preferably only one of the first and second gasket layers 12 , 14 . In the first embodiment of FIG.
  • the stopper layer 16 is fixed to the first gasket layer 12 by a weld joint 41 at a location radially inward of the sealing beads 26 , 28 .
  • An opposite outward end 43 of the stopper layer 16 is located radially outward of the sealing beads 26 , 28 and in this embodiment is free and unattached to either of the adjacent layers 12 , 14 .
  • the stopper layer is fixed at only one of its ends, preferably the radially inner end adjacent the cylinder opening 18 , while the other end of the stopper layer on the opposite side of the sealing bead is unattached and free to move relative to the layer to which it is attached when the gasket 10 is clamped under compression.
  • the stopper layer 16 is secured to the radially inner land region 34 of the first gasket layer 12 at a location between the cylinder opening 18 and the sealing bead 26 .
  • the preferred means for securing the stopper layer 16 is welding, and preferably laser welding, although other techniques may be employed, such as, but not limited to riveting, adhesives, an intermediate bonding layer, or the like.
  • the partial stopper layer 16 is planar.
  • the aligned sealing beads 26 , 28 extend in the same direction, with the sealing bead 26 of the first layer projecting outwardly of its main body 30 , and the sealing bead 28 of the second layer 14 projecting in the same direction toward the first gasket layer 12 .
  • the peak of the sealing bead 28 of the second layer 14 contacts the underside of the stopper layer 16 opposite the side attached to the first gasket layer 12 in the region spanning the sealing bead 26 of the first gasket layer 12 .
  • FIG. 3 there is illustrated a condition in which the cylinder liner 24 projects slightly above a top deck 44 of the engine block 22 .
  • the gasket 10 is sufficiently soft in compressibility to accommodate the projecting liner and still form a suitable seal between the block 22 and liner 24 and a cylinder head 46 that is clamped by bolting or the like to the block 22 as illustrated in FIG. 3 .
  • the gasket 10 is able to deform under a relatively light clamping load to bridge the step formed between the projecting cylinder liner 24 and the top deck 44 of the block 20 , and on the opposite side to form a seal with the cylinder head 46 so as to seal the engine cylinder 20 from leakage.
  • the stopper layer 16 With the stopper layer 16 being affixed to only one side of the sealing beads 26 , the stopper layer does not overly inhibit the deformation of the sealing beads and lends to a softer, more readily compressible gasket of reduced thickness.
  • the sealing beads when the gasket is compressed, the sealing beads are pressed toward a flat condition and tend to spread out, causing slight movement of the gasket layers 12 , 14 , shown exaggerated in FIG. 3 for purposes of illustration. Any such movement or slippage of the gasket layers is not inhibited by the partial stopper layer since it is fixed on only one side of the sealing beads and is free at its opposite end 48 .
  • FIG. 4 A gasket 110 constructed according to a second embodiment of the invention is shown at FIG. 4 , wherein the same reference numerals are used to indicate like features that are offset by 100 .
  • This gasket 110 is of the same construction as that of the gasket of FIG. 2 , except that the second layer 14 is reversed in its orientation, such that the sealing beads 126 , 128 are each directed outwardly away from one another.
  • the stopper layer 116 is fixed to the second layer 114 , although it could as well be fixed to the first layer 112 instead. The same benefits described above in connection with the gasket 10 of the first embodiment are evident in the gasket 110 of the second embodiment.
  • the gasket 210 constructed according to a third embodiment of the invention is shown in FIG. 5 , in which the same reference numerals used in connection with the gasket 10 of the first embodiment, but are offset by 200 .
  • the gasket 210 is identical in construction to that of FIG. 4 , except that the stopper layer 16 is preformed with a bead 50 that nests with the bead 228 of the second layer to which it is attached.
  • FIG. 6 illustrates a gasket 310 constructed according to a fourth embodiment of the invention, wherein the same reference numerals are used to indicate like features, but are offset by 300 .
  • the orientation of the first gasket layer 312 is reversed such that the sealing beads 326 , 328 project inwardly toward one another, and that the stopper layer 316 , joined to the second gasket layer 314 is preformed with a bead 52 that nests with the sealing bead 28 of the second layer 314 .
  • FIG. 7 illustrates a gasket 410 constructed according to a fifth embodiment of the invention, wherein the same reference numerals are used to designate like features, but are offset by 400 .
  • the gasket constriction is identical to that shown in FIG. 2 , except that the attachment weld 441 is located on the raidally outboard side 443 of the stopper outward of the beads 426 , 428 instead of on the radially inward side.
  • the portion of the stopper layer 416 radially inward of the beads 426 , 428 is free an unattached to either layer 412 , 414 .
  • the engine block 422 lacks a liner.
  • This gasket 410 is equally applicable to engines with liners and engines without liners, as are each of the other embodiments of the invention described above. It is to be understood that within the scope of the present invention it is contemplated that the same outward location of the attachment weld 441 as shown in FIG. 7 could be applied to each of the other embodiments of FIGS. 4-6 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
US11/063,073 2004-02-26 2005-02-22 Metal gasket Abandoned US20050189724A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US11/063,073 US20050189724A1 (en) 2004-02-26 2005-02-22 Metal gasket
PCT/US2005/005717 WO2005081957A2 (en) 2004-02-26 2005-02-23 Metal gasket having fixed partial stopper layer
RU2006134009/06A RU2358172C2 (ru) 2004-02-26 2005-02-23 Металлическая прокладка
EP05723552A EP1740817B1 (en) 2004-02-26 2005-02-23 Metal gasket
JP2007500941A JP2007525629A (ja) 2004-02-26 2005-02-23 金属ガスケット
CA002556707A CA2556707A1 (en) 2004-02-26 2005-02-23 Metal gasket
US13/091,191 US8556271B2 (en) 2004-02-26 2011-04-21 Multilayer metal gasket

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54798104P 2004-02-26 2004-02-26
US11/063,073 US20050189724A1 (en) 2004-02-26 2005-02-22 Metal gasket

Related Child Applications (1)

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US13/091,191 Division US8556271B2 (en) 2004-02-26 2011-04-21 Multilayer metal gasket

Publications (1)

Publication Number Publication Date
US20050189724A1 true US20050189724A1 (en) 2005-09-01

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US11/063,073 Abandoned US20050189724A1 (en) 2004-02-26 2005-02-22 Metal gasket
US13/091,191 Expired - Fee Related US8556271B2 (en) 2004-02-26 2011-04-21 Multilayer metal gasket

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US13/091,191 Expired - Fee Related US8556271B2 (en) 2004-02-26 2011-04-21 Multilayer metal gasket

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US (2) US20050189724A1 (enExample)
EP (1) EP1740817B1 (enExample)
JP (1) JP2007525629A (enExample)
CA (1) CA2556707A1 (enExample)
RU (1) RU2358172C2 (enExample)
WO (1) WO2005081957A2 (enExample)

Cited By (26)

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US20050218607A1 (en) * 2004-03-30 2005-10-06 Nichias Corporation Metal gasket
US20060012131A1 (en) * 2004-07-16 2006-01-19 Popielas Frank W Fluid aperture with stopper bead
WO2007031127A1 (de) * 2005-09-13 2007-03-22 Federal-Mogul Sealing Systems Gmbh Metallische flachdichtung
US20090066036A1 (en) * 2007-09-11 2009-03-12 Joerg Schmitz Metallic cylinder head gasket
US20100032909A1 (en) * 2008-08-06 2010-02-11 Ford Global Technologies Llc Engine Cylinder Head Gasket Assembly
US20100143101A1 (en) * 2008-12-05 2010-06-10 General Electric Company Compliant foil seal for rotary machines
US20100242278A1 (en) * 2007-02-21 2010-09-30 Darrell Drouillard Integrated exhaust manifold and cylinder head gasket
US20110084456A1 (en) * 2008-05-20 2011-04-14 Tohoku University Metal Gasket
US20110101626A1 (en) * 2008-06-21 2011-05-05 Federal-Mogul Sealing Systems Gmbh Flat seal
WO2011093546A1 (ko) * 2010-01-28 2011-08-04 동아공업 주식회사 비드-스토퍼 일체형의 헤드 가스켓 및 그 제조 방법
US20110204580A1 (en) * 2010-02-19 2011-08-25 Federal-Mogul Corporation Multilayer gasket with labyrinth stopper
US20110298186A1 (en) * 2009-02-13 2011-12-08 Federal-Mogiul Sealing Systems Gmbh Gaskets having additional sealing element
US20120126491A1 (en) * 2009-05-15 2012-05-24 Klaus Schmitt Flat seal comprising sealing bead and embossing, and method for the production thereof
WO2012142350A1 (en) * 2011-04-14 2012-10-18 Federal-Mogul Corporation Multilayer metal gasket with bead on stopper bead on stopper
WO2013052751A1 (en) 2011-10-06 2013-04-11 Federal-Mogul Corporation Multilayer gasket with segmented integral stopper feature
WO2013180877A1 (en) * 2012-06-01 2013-12-05 Federal-Mogul Corporation Metal gasket
US8695986B2 (en) 2009-08-19 2014-04-15 Federal-Mogul Corporation Cylinder head gasket assembly
EP2733396A1 (en) * 2012-11-20 2014-05-21 Caterpillar Inc. Service gasket for internal combustion engine and method
US8752841B2 (en) 2012-05-18 2014-06-17 Federal-Mogul Corporation Gasket with a compression limiter
US20140265154A1 (en) * 2013-03-14 2014-09-18 Federal-Mogul Corporation Multi-layer gasket
US20150226153A1 (en) * 2014-02-13 2015-08-13 Federal Mogul Corporation Cylinder head gasket for high load and motion applications
US20150369170A1 (en) * 2014-06-23 2015-12-24 Federal-Mogul Corporation Cylinder head gasket with compression limiter and full bead loading
US9394850B2 (en) 2012-08-10 2016-07-19 Dana Automotive Systems Group, Llc Metal gasket with coating topography
US10443731B2 (en) * 2014-01-17 2019-10-15 Tenneco Inc. Gasket component with half-stop and method of manufacturing
US10634251B2 (en) * 2014-08-20 2020-04-28 Tenneca Inc. Multi-layer gasket assembly
US11248703B2 (en) 2014-03-18 2022-02-15 Nok Corporation Metal gasket

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KR101936057B1 (ko) 2011-02-01 2019-01-08 페더럴-모걸 엘엘씨 이차 압축 제한부를 가진 멀티레이어형 정적 개스킷
FR2997324B1 (fr) * 2012-10-31 2015-05-15 Snecma Joint statique metallique annulaire performant a bas cout pour hautes pressions et grands diametres
US9127621B2 (en) 2013-09-10 2015-09-08 Federal-Mogul Corporation Coatingless cylinder head gasket
JP6367177B2 (ja) * 2015-12-28 2018-08-01 ニチアス株式会社 シリンダヘッドガスケット及びシリンダヘッドガスケット用ステンレス鋼板
JP2018071730A (ja) * 2016-11-02 2018-05-10 Nok株式会社 ガスケット
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RU2358172C2 (ru) 2009-06-10
CA2556707A1 (en) 2005-09-09

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