EP2066951A1 - Dichtungssystem für abgasleitungen - Google Patents
Dichtungssystem für abgasleitungenInfo
- Publication number
- EP2066951A1 EP2066951A1 EP07802061A EP07802061A EP2066951A1 EP 2066951 A1 EP2066951 A1 EP 2066951A1 EP 07802061 A EP07802061 A EP 07802061A EP 07802061 A EP07802061 A EP 07802061A EP 2066951 A1 EP2066951 A1 EP 2066951A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- flange
- sealing system
- annular
- face
- 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- Withdrawn
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/20—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1827—Sealings specially adapted for exhaust systems
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Definitions
- the invention relates to a sealing system, in particular for sealing multi-part exhaust pipes for an internal combustion engine, with at least a first and a second, a heat flow leading flange portion defining a receiving space for at least one sealing element between them.
- Sealing systems of this type are known.
- DE 10 2004 060 845 AI shows, for example, such a sealing system for the exhaust pipe of a reciprocating engine, wherein a metallic sealing ring in the form of a profile body with C-shaped profile cross-section is provided as density element.
- Sealing elements on the exhaust system are subject to very high temperatures, which may be more than 600 0 C. Even if materials with properties selected with regard to heat resistance are used, the sealing elements lose their functional properties required for sealing under prevailing high working temperatures; in particular, the elasticity of the sealing elements is reduced by creeping processes due to excessive thermal stresses.
- the invention has the object to provide a sealing system that ensures a reliable seal when used in the hot gas area, even when high temperatures occur at the sealed exhaust pipes. According to the invention this object is achieved by a sealing system having the features of claim 1 in its entirety.
- a metallic annular body is provided as a cover element.
- annular body in the form of a flat ring, this is preferably inserted so that it extends between the sealing element and the facing end face of the flange and thus forms a thermal barrier on the thermally most heavily loaded area of the annular groove in which the Chamber is chambered.
- the cover element may be formed by a profile ring, which may for example have a curved profile or a beveled profile.
- the annular body is preferably inserted into the annular groove such that it surrounds the sealing element both on the side facing the end face and on one side, which faces a further wall of the receiving space.
- a particularly good thermal shielding of the sealing element is achievable in such embodiments when the cover element surrounds the sealing element also on the side closest to the heat flow, ie on the side facing the radially inner wall of the annular groove.
- a molding ring seal is preferably provided, in particular with a C-shaped or V-shaped profile cross-section.
- the sealing element with C-profile is preferably installed in the annular groove so that the profile is radially inward, ie towards the pressure side of the system, open.
- the sealing element could also have a meander-shaped profile section, in the manner of a bellows solution, in which a plurality of superimposed folds form the cross-section.
- metal bead seals can be installed in the receiving space.
- the invention ensures thermal protection for the respective sealing element, so that a reliable sealing in hot gas areas is ensured in the case of metallic sealing elements made from a material available for high-temperature use.
- the ring shape for the sealing element may be circular or approximately circular.
- ring shapes are conceivable in the manner of an oval or a rectangular shape, preferably with rounded corner regions.
- An assignable annular groove then preferably has to follow the pertinent annular shape of the sealing element.
- Figure 1 shows a highly schematically simplified, broken and half-side drawn longitudinal section of adjacent pipe sections of an exhaust pipe, the pipe sections are mutually sealed by a sealing system according to an embodiment of the invention.
- Fig. 2 is a half-side longitudinal section only of the joint area of the adjacent flange portions of two pipe sections, provided with a second embodiment of the sealing system, and
- Fig. 3 is a similar to Fig. 2 representation, provided with a third
- a first line piece and a second line piece of an exhaust pipe are denoted by 1 and 3 respectively.
- the exhaust pipe carries an exhaust heat flow 5 with a correspondingly high exhaust gas temperature.
- the line pieces 1 and 3 which are to be joined together and sealed against one another by means of the sealing system according to the invention each have a flange part 9 or 1 1 projecting radially outward, relative to the line axis 7.
- the flange parts 9 and 11 together form an annular flange 13, wherein the flange parts 9 and 1 1 have mutually facing end faces 15 and 17 respectively.
- the flange parts 9, 11 of the annular flange 13 are braced by suitable clamping means with each other, which may be formed in a conventional manner and are therefore not shown.
- suitable clamping means a clamping ring which is mounted on circumferential chamfers 25 of the flange parts 9 and 11 (not shown).
- the figures show as a sealing element for the sealing between the flange 9 and 1 1 a metallic annular seal 31 C-shaped profile cross-section.
- a molded ring seal with a different profile cross-section or a bead seal or the like could be used.
- the sealing element in question is at least partially chambered in a receiving space 33 formed between the flange parts 9 and 11.
- the receiving space 33 each formed by an annular groove 45 which is recessed in the flange 1 1 from the end face 17 ago deepened in the axial direction, wherein in conjunction with the end face 15 of the flange 9 a closed chamber for the molding ring seal 31 is formed.
- a cover element 47 inserted in the annular groove 45 is present in each case as additional heat protection for the annular seal 31 located in the receiving space 33.
- the cover element 47 is designed so that it forms a thermal barrier between the annular seal 31 and the most thermally stressed area of the receiving space 33.
- the cover member 47 is formed by a flat metal ring which is inserted between the annular seal 31 and the end face 17 which is adjacent to the end face 15 of the opposite flange part 9. As indicated by flow arrow 49, this joint is most under the influence of the heat flow 5, so that the cover member 47 has the greatest protective effect in this position.
- Fig. 2 is provided as a cover member 47 instead of a flat ring a curved annular body which is installed in the annular groove 45 so that it not only shields that side of the annular seal 31, which on the open side of the annular space 45th adjoins and 1 forms a barrier in the same way as in the example of FIG. 1, but moreover engages over the annular seal 31 with a curved region in such a way that it is also shielded from the radially inner wall of the annular groove 45, ie against the wall of the annular groove. receiving space 33, which is the heat flow 5 nearest.
- Fig. 3 illustrates a further embodiment in which the cover member 47 also forms a screen on two sides of the annular seal 31.
- the cover element 47 is designed as an angled profile ring, wherein a profile leg, corresponding to the flat annular body of Fig. 1, along the joint between the end faces 17 and 15 extends.
- the other angled profile leg forms now, in correspondence with the arched profile part of the cover element 47 of FIG. 2, again the shield opposite the wall of the receiving space 33 closest to the heat flow 5.
- cover element 47 instead of the illustrated shapes of the cover element 47 other profile cross sections could be used, for example, a U-profile, which surrounds the sealing element along three sides.
- the cover member 47 is installed in the annular groove 45 so that the annular seal 31 is covered at least on the side facing the joint between the end faces 15 and 17 of the flange 9 and 1 1, wherein preferably additionally the annular seal 31 at at least one further, thermally vulnerable side is overlapped by the correspondingly shaped cover element 47.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
- Exhaust Silencers (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006045584A DE102006045584A1 (de) | 2006-09-27 | 2006-09-27 | Dichtungssystem |
PCT/EP2007/007644 WO2008037330A1 (de) | 2006-09-27 | 2007-09-01 | Dichtungssystem für abgasleitungen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2066951A1 true EP2066951A1 (de) | 2009-06-10 |
Family
ID=38668977
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07802062A Withdrawn EP2066952A1 (de) | 2006-09-27 | 2007-09-01 | Dichtungssystem für abgasleitungen |
EP07802061A Withdrawn EP2066951A1 (de) | 2006-09-27 | 2007-09-01 | Dichtungssystem für abgasleitungen |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07802062A Withdrawn EP2066952A1 (de) | 2006-09-27 | 2007-09-01 | Dichtungssystem für abgasleitungen |
Country Status (6)
Country | Link |
---|---|
US (3) | US8328203B2 (de) |
EP (2) | EP2066952A1 (de) |
JP (2) | JP2010505069A (de) |
CN (2) | CN101517303A (de) |
DE (1) | DE102006045584A1 (de) |
WO (2) | WO2008037331A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011001279A1 (de) | 2011-03-15 | 2012-09-20 | Elringklinger Ag | Metallisches balgartiges Dichtungselement und Verfahren zum Herstellen des Dichtelementes |
DE112011105631A5 (de) | 2010-03-19 | 2015-01-15 | Elringklinger Ag | Verfahren und Vorrichtung zur Herstellung von Profilringen |
DE102010015679A1 (de) * | 2010-04-21 | 2011-10-27 | Bayerische Motoren Werke Aktiengesellschaft | Dichtungsanordnung |
CN102108914A (zh) * | 2011-01-26 | 2011-06-29 | 重庆长安汽车股份有限公司 | 一种汽车排气系统平面法兰密封垫片 |
DE112012000347T5 (de) * | 2011-01-27 | 2013-09-12 | Borgwarner Inc. | Regelklappenanordnung |
US9010089B2 (en) * | 2011-08-18 | 2015-04-21 | Continental Automotive Systems, Inc. | Reductant delivery unit for automotive selective catalytic reduction with gasket anti-deposit shielding structure |
DE102011054213A1 (de) | 2011-10-05 | 2013-04-11 | Elringklinger Ag | Rohrleitung, insbesondere Heißgasrohrleitung, insbesondere zur Verwendung in Abgassträngen von Kraftfahrzeugen |
DE102011119513A1 (de) * | 2011-11-26 | 2013-05-29 | Gm Global Technology Operations, Llc | Rohrverbindung zur fluiddichten Anbindung von Komponenten einer Klimaanlage |
CN102606823B (zh) * | 2012-03-16 | 2014-07-09 | 苏州宝骅机械技术有限公司 | 恒应力恒位移线密封组件 |
DE102013202453A1 (de) * | 2013-02-14 | 2014-08-14 | Elringklinger Ag | Heißgasverbindung |
DE102013213850B4 (de) * | 2013-07-16 | 2015-11-19 | Bayerische Motoren Werke Aktiengesellschaft | Anordnung zum fluidleitenden Verbinden eines Gehäuses eines Abgasturboladers mit einem weiteren abgasführenden Bauteil |
DE102015121459A1 (de) | 2015-12-09 | 2017-06-14 | Elringklinger Ag | Montagevorrichtung für einen profilierten Ring |
DE102015121811A1 (de) | 2015-12-15 | 2017-07-06 | Elringklinger Ag | Profilierter Ring und Herstellungsverfahren |
CN107401642A (zh) * | 2017-07-21 | 2017-11-28 | 江苏易元新材料科技有限公司 | 一种法兰盘 |
CN112984245A (zh) * | 2021-02-09 | 2021-06-18 | 兰州空间技术物理研究所 | 一种应用于气体质量流量控制器的法兰 |
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DE1944582A1 (de) | 1969-09-03 | 1971-03-04 | Karl Bogena | Verfahren und Vorrichtung zur Herstellung von Peruecken und Toupets |
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-
2006
- 2006-09-27 DE DE102006045584A patent/DE102006045584A1/de not_active Ceased
-
2007
- 2007-09-01 CN CNA2007800359686A patent/CN101517303A/zh active Pending
- 2007-09-01 JP JP2009529554A patent/JP2010505069A/ja active Pending
- 2007-09-01 CN CN2007800361474A patent/CN101523106B/zh not_active Expired - Fee Related
- 2007-09-01 EP EP07802062A patent/EP2066952A1/de not_active Withdrawn
- 2007-09-01 JP JP2009529555A patent/JP2010505070A/ja not_active Withdrawn
- 2007-09-01 WO PCT/EP2007/007645 patent/WO2008037331A1/de active Application Filing
- 2007-09-01 WO PCT/EP2007/007644 patent/WO2008037330A1/de active Application Filing
- 2007-09-01 EP EP07802061A patent/EP2066951A1/de not_active Withdrawn
- 2007-09-01 US US12/309,952 patent/US8328203B2/en not_active Expired - Fee Related
- 2007-09-01 US US12/309,951 patent/US20090284008A1/en not_active Abandoned
- 2007-09-24 US US11/902,576 patent/US20080073857A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2008037330A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2010505069A (ja) | 2010-02-18 |
US20090284008A1 (en) | 2009-11-19 |
CN101523106B (zh) | 2013-03-06 |
JP2010505070A (ja) | 2010-02-18 |
CN101523106A (zh) | 2009-09-02 |
DE102006045584A1 (de) | 2008-05-15 |
US20090322039A1 (en) | 2009-12-31 |
WO2008037331A1 (de) | 2008-04-03 |
EP2066952A1 (de) | 2009-06-10 |
US8328203B2 (en) | 2012-12-11 |
CN101517303A (zh) | 2009-08-26 |
WO2008037330A1 (de) | 2008-04-03 |
US20080073857A1 (en) | 2008-03-27 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17Q | First examination report despatched |
Effective date: 20100330 |
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Owner name: ELRINGKLINGER AG |
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