DE202007003483U1 - Line connection of a device for exhaust gas recirculation - Google Patents
Line connection of a device for exhaust gas recirculation Download PDFInfo
- Publication number
- DE202007003483U1 DE202007003483U1 DE202007003483U DE202007003483U DE202007003483U1 DE 202007003483 U1 DE202007003483 U1 DE 202007003483U1 DE 202007003483 U DE202007003483 U DE 202007003483U DE 202007003483 U DE202007003483 U DE 202007003483U DE 202007003483 U1 DE202007003483 U1 DE 202007003483U1
- Authority
- DE
- Germany
- Prior art keywords
- sealing element
- line connection
- cup
- housing flange
- section
- 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.)
- Expired - Lifetime
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
- F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Gasket Seals (AREA)
Abstract
Leitungsverbindung bei einer Einrichtung zur Abgasrückführung, bestehend aus einem Gehäuseflansch 2 mit kegelstumpfförmigem Querschnitt mit zwei gegenüber einer radialen Ebene komplementär geneigten Klemmflächen und einem dazu koaxial angeordneten rohrförmigen Leitungsabschnitt 1, der zum Gehäuseflansch 2 hin eine kelchförmige Erweiterung aufweist, deren konischer Klemmbereich 3 parallel zur anschließenden Dichtfläche des Gehäuseflansches 2 ist und zwischen denen sich ein flächiges Dichtungselement 4 befindet, dadurch gekennzeichnet, dass das Dichtungselement 4 der Innenkontur der kelchförmigen Erweiterung des Leitungsabschnittes 1 folgend über die Dichtfläche nach außen hinausragt und den Außenrand der Erweiterung bereichsweise am Umfang formschlüssig umgreift.line connection in a device for exhaust gas recirculation, consisting from a housing flange 2 with frustoconical Cross section with two opposite a radial plane complementary inclined clamping surfaces and a coaxial tubular conduit section 1, to the housing flange 2 towards a cup-shaped Extension, the conical clamping portion 3 parallel to subsequent sealing surface of the housing flange 2 and between which there is a flat sealing element 4, characterized in that the sealing element 4 of the inner contour the cup-shaped Extension of the line section 1 following the sealing surface Outside protrudes and the outer edge the extension partially encompasses the circumference form fit on the circumference.
Description
Die vorliegende Erfindung betrifft eine Leitungsverbindung bei einer Einrichtung zur Abgasrückführung, bei der die zu verbindenden Leitungsteile vorzugsweise schräg verlaufende und parallele Dichtflächen aufweisen, zwischen denen ein flächiges Dichtungselement derart angeordnet ist, dass es eines der beiden Leitungsteile mindestens bereichsweise am Umfang formschlüssig umgreift, wodurch das Dichtungselement verliersicher befestigt ist. Die erforderliche Dichtungspressung wird von einer herkömmlichen, V-förmigen Profilschelle erzeugt, die die beiden Leitungsteile von außen übergreift und axial zusammen spannt.The The present invention relates to a line connection in a Device for exhaust gas recirculation, at the lead parts to be connected preferably obliquely and parallel sealing surfaces between which a flat Sealing element is arranged such that it is one of the two At least partially surrounds line parts at the periphery in a form-fitting manner, whereby the sealing element is secured captively. The required Sealing pressure is from a conventional, V-shaped Produces profile clamp, which engages over the two line parts from the outside and axially clamped together.
Derartige Leitungsverbindungen sind bekannt, wobei die Rohrleitungsteile wegen der korrosiven Wirkung der Abgase sowie der thermischen Beanspruchung häufig aus nichtrostendem Stahl, die zu verbindenden Gehäuseteile häufig aus temperaturfestem Guss, z. B. aus Aluminium-Druckguss, hergestellt werden.such Line connections are known, the pipeline parts because the corrosive effect of the exhaust gases and the thermal stress often made of stainless steel, the housing parts to be connected often made of temperature-resistant cast, z. B. die-cast aluminum, are produced.
Eine
derartige Leitungsverbindung ist beispielsweise aus der amerikanischen
Patentschrift aus dem Jahre 1941,
Nachteilig bei den beschriebenen Leitungsverbindungen ist der Umstand, dass beim Lösen der Verbindung die Dichtung leicht verloren gehen kann bzw. dass bei der Montage besondere Sorgfalt bei der Positionierung der Dichtung erforderlich ist.adversely with the cable connections described is the fact that when loosening the compound the seal can easily be lost or that during assembly special care in the positioning of the seal is required.
In
der Druckschrift
Nachteilig bei dieser Ausführung ist die kostspielige Ausführung der Dichtfläche mit eingedrehter Nut zur Aufnahme des Dichtungselementes, die einen beträchtlichen Zerspanungsaufwand zur Erzeugung der Nut erforderlich macht.adversely in this version is the expensive design the sealing surface with screwed groove for receiving the sealing element, the one considerable Zerspanungsaufwand to produce the groove required.
Der Erfindung liegt daher die Aufgabe zugrunde, eine gattungsgemäße Leitungsverbindung dahingehend weiter zu entwickeln, dass sie kostengünstig und montage- sowie demontagefreundlich ist.Of the The invention is therefore based on the object, a generic line connection to the effect continue to develop that it is cost-effective and easy to assemble and disassembly.
Erfindungsgemäß wird die genannte Aufgabe bei einer Leitungsverbindung der eingangs genannten Art dadurch gelöst, dass das Dichtungselement eines der beiden Leitungsteile mindestens bereichsweise am äußeren Umfang formschlüssig umgreift, wodurch das Dichtungselement verliersicher festgelegt wird.According to the invention said task in a line connection of the aforementioned Sort of solved by that the sealing element of one of the two line parts at least partially on the outer circumference form-fitting surrounds, whereby the sealing element set captive becomes.
So folgt das Dichtungselement der Innenkontur der konische nach außen gerichteten Klemmfläche des Leitungsteiles und umgreift bereichsweise an mindestens drei Stellen am Umfang mittels Fixiernasen das Ende des kelchförmigen Leitungsteiles formschlüssig. Bei größeren Durchmessern kann es zweckmäßig sein, die Anzahl der Fixiernasen zu erhöhen, damit eine ausreichende Befestigung sichergestellt wird. Auf diese Weise ist das Dichtungselement fest mit dem Leitungselement verbunden und ermöglicht so eine kostengünstige Montage, da das Dichtungselement bereits unverlierbar am Rohrleitungselement vormontiert werden kann. Bei einer späteren Demontage verbleibt das Dichtungselement in der gewünschten Position, lässt sich aber auch leicht durch Aufbiegen der das Leitungselement außen umgreifenden Fixierungsnasen entfernen bzw. durch ein neues Dichtungselement ersetzen, das wiederum durch das formschlüssige Zurückbiegen der Fixierungsnasen fest mit dem Leitungselement verbunden wird.So follows the sealing element of the inner contour of the conical outward clamping surface the line part and surrounds partially at least three Make at the periphery by means of fixing lugs the end of the cup-shaped part of the pipe form-fit. at larger diameters it may be appropriate to increase the number of fixing noses, so that a sufficient Fixing is ensured. In this way, the sealing element firmly connected to the conduit element and thus allows a cost-effective installation, since the sealing element already captive on the pipe element can be pre-assembled. In a later dismantling that remains Sealing element in the desired Position, lets But also easily by bending the outside of the conduit element Remove fixing lugs or through a new sealing element replace, in turn, by the positive bending back the Fixierungsnasen is firmly connected to the conduit element.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung, in der ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die Zeichnungen im einzelnen erläutert ist. Dabei zeigt:Further Advantages and features of the invention will become apparent from the claims and from the following description, in which an embodiment the invention with reference to the drawings in detail explained is. Showing:
In
Die
Die
Selbstverständlich ist die Erfindung nicht auf das dargestellten Ausführungsbeispiel beschränkt, sondern es sind vielfältige Ausgestaltungen speziell hinsichtlich der Anordnung und Gestaltung der Fixiernasen im Rahmen der vorliegenden Ansprüche möglich.Of course it is the invention is not limited to the illustrated embodiment, but they are manifold Embodiments specifically with regard to the arrangement and design the fixing lugs within the scope of the present claims possible.
- 11
- Leitungsabschnittline section
- 22
- Gehäuseflanschhousing flange
- 33
- konischer Klemmbereichconical clamping range
- 44
- Dichtungselementsealing element
- 55
- Fixiernasefixing lug
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007003483U DE202007003483U1 (en) | 2007-03-08 | 2007-03-08 | Line connection of a device for exhaust gas recirculation |
DE102008012779.5A DE102008012779B4 (en) | 2007-03-08 | 2008-03-05 | Line connection of a device for exhaust gas recirculation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007003483U DE202007003483U1 (en) | 2007-03-08 | 2007-03-08 | Line connection of a device for exhaust gas recirculation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007003483U1 true DE202007003483U1 (en) | 2008-04-17 |
Family
ID=39311579
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202007003483U Expired - Lifetime DE202007003483U1 (en) | 2007-03-08 | 2007-03-08 | Line connection of a device for exhaust gas recirculation |
DE102008012779.5A Active DE102008012779B4 (en) | 2007-03-08 | 2008-03-05 | Line connection of a device for exhaust gas recirculation |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008012779.5A Active DE102008012779B4 (en) | 2007-03-08 | 2008-03-05 | Line connection of a device for exhaust gas recirculation |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE202007003483U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013201847B4 (en) | 2013-02-05 | 2022-06-09 | NEUMO Armaturenfabrik-Apparatebau-Metallgießerei GmbH + Co KG | Seal and sealing ring for a seal |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2269664A (en) * | 1941-03-14 | 1942-01-13 | United Specialties Co | Seal construction |
DE1995313U (en) * | 1968-08-17 | 1968-10-24 | Bayer Ag | COLLAR SEAL FOR FLANGE CONNECTIONS. |
DE2738244A1 (en) * | 1977-08-25 | 1979-03-01 | Wilhelm Schulz | Pipe flange connection with packings or seals - has spring clips on seal to prevent loss and assist during fitting |
DE8425525U1 (en) * | 1984-12-06 | Struve, Armin, 5090 Leverkusen | Plastic sealing ring, in particular made of polytetrafluoroethylene, for glass connections | |
US5333884A (en) * | 1990-10-25 | 1994-08-02 | Ishikawa Gasket Co., Ltd. | Gasket with auxiliary attaching mechanism |
DE29512572U1 (en) * | 1995-08-04 | 1995-10-05 | IWK Regler und Kompensatoren GmbH, 76297 Stutensee | Gas-tight connection of thin-walled pipes with housings |
DE19833302A1 (en) * | 1998-07-24 | 2000-01-27 | Wahler Gmbh & Co Gustav | Exhaust gas recirculation pipe has radially outward pointing flange on end of pipe section, sealing ring inside annular space between flange and end surface |
DE20317425U1 (en) * | 2003-11-12 | 2004-01-15 | Burgmann Automotive Gmbh | System for connecting sections of IC engine exhaust comprises flanges on ends of sections which have complementary slope and clamp fitted over them, one flange having peripheral groove in which sealing ring is mounted |
FR2848246A1 (en) * | 2002-12-06 | 2004-06-11 | Renault Sa | Sealed joint for motor vehicle exhaust system includes deflector that surrounds the surface of the end-to-end joined exhaust pipes to prevent leakage of exhaust gases |
DE69916518T2 (en) * | 1998-02-26 | 2005-04-07 | Christian Loth | Pipe flange sealing ring |
DE102005033387A1 (en) * | 2005-07-16 | 2007-01-18 | Elringklinger Ag | sealing system |
-
2007
- 2007-03-08 DE DE202007003483U patent/DE202007003483U1/en not_active Expired - Lifetime
-
2008
- 2008-03-05 DE DE102008012779.5A patent/DE102008012779B4/en active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8425525U1 (en) * | 1984-12-06 | Struve, Armin, 5090 Leverkusen | Plastic sealing ring, in particular made of polytetrafluoroethylene, for glass connections | |
US2269664A (en) * | 1941-03-14 | 1942-01-13 | United Specialties Co | Seal construction |
DE1995313U (en) * | 1968-08-17 | 1968-10-24 | Bayer Ag | COLLAR SEAL FOR FLANGE CONNECTIONS. |
DE2738244A1 (en) * | 1977-08-25 | 1979-03-01 | Wilhelm Schulz | Pipe flange connection with packings or seals - has spring clips on seal to prevent loss and assist during fitting |
US5333884A (en) * | 1990-10-25 | 1994-08-02 | Ishikawa Gasket Co., Ltd. | Gasket with auxiliary attaching mechanism |
DE29512572U1 (en) * | 1995-08-04 | 1995-10-05 | IWK Regler und Kompensatoren GmbH, 76297 Stutensee | Gas-tight connection of thin-walled pipes with housings |
DE69916518T2 (en) * | 1998-02-26 | 2005-04-07 | Christian Loth | Pipe flange sealing ring |
DE19833302A1 (en) * | 1998-07-24 | 2000-01-27 | Wahler Gmbh & Co Gustav | Exhaust gas recirculation pipe has radially outward pointing flange on end of pipe section, sealing ring inside annular space between flange and end surface |
FR2848246A1 (en) * | 2002-12-06 | 2004-06-11 | Renault Sa | Sealed joint for motor vehicle exhaust system includes deflector that surrounds the surface of the end-to-end joined exhaust pipes to prevent leakage of exhaust gases |
DE20317425U1 (en) * | 2003-11-12 | 2004-01-15 | Burgmann Automotive Gmbh | System for connecting sections of IC engine exhaust comprises flanges on ends of sections which have complementary slope and clamp fitted over them, one flange having peripheral groove in which sealing ring is mounted |
DE102005033387A1 (en) * | 2005-07-16 | 2007-01-18 | Elringklinger Ag | sealing system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013201847B4 (en) | 2013-02-05 | 2022-06-09 | NEUMO Armaturenfabrik-Apparatebau-Metallgießerei GmbH + Co KG | Seal and sealing ring for a seal |
Also Published As
Publication number | Publication date |
---|---|
DE102008012779B4 (en) | 2021-12-23 |
DE102008012779A1 (en) | 2008-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R207 | Utility model specification |
Effective date: 20080521 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20100412 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20130327 |
|
R152 | Utility model maintained after payment of third maintenance fee after eight years | ||
R071 | Expiry of right |