FR2924643A1 - Positioning arrangement for exhaust manifold of e.g. motor vehicle, has centering unit maintained between flanges by elastic expansion such that unit retrieves dilatation gap of flanges when manifold is subjected to thermal stress - Google Patents
Positioning arrangement for exhaust manifold of e.g. motor vehicle, has centering unit maintained between flanges by elastic expansion such that unit retrieves dilatation gap of flanges when manifold is subjected to thermal stress Download PDFInfo
- Publication number
- FR2924643A1 FR2924643A1 FR0759685A FR0759685A FR2924643A1 FR 2924643 A1 FR2924643 A1 FR 2924643A1 FR 0759685 A FR0759685 A FR 0759685A FR 0759685 A FR0759685 A FR 0759685A FR 2924643 A1 FR2924643 A1 FR 2924643A1
- Authority
- FR
- France
- Prior art keywords
- flanges
- centering
- centering means
- exhaust manifold
- cylinder head
- 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.)
- Pending
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Classifications
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- 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
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
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- 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
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- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
AGENCEMENT DE MISE EN POSITION DE MONTAGE D'UN COLLECTEUR D'ECHAPPEMENT SUR UNE CULASSE D'UN MOTEUR A COMBUSTION INTERNE La présente invention concerne le domaine de fixation d'un collecteur d'échappement à une culasse de moteur à combustion, et concerne plus particulièrement un agencement d'un collecteur d'échappement sur une culasse, notamment lorsque le collecteur d'échappement est en fonte. The present invention relates to the field of attachment of an exhaust manifold to a combustion engine cylinder head, and relates more particularly to the field of attachment of an exhaust manifold to a combustion engine cylinder head, and relates more particularly to the field of attachment of an exhaust manifold to a combustion engine cylinder head. particularly an arrangement of an exhaust manifold on a cylinder head, especially when the exhaust manifold is cast iron.
Un collecteur d'échappement est généralement fixé sur une culasse d'un moteur à combustion interne et est destiné à rassembler les gaz d'échappement sortant de différents conduits de la culasse pour les transporter, en sortie du collecteur, dans un seul conduit vers des équipements tels que le turbocompresseur. Le collecteur d'échappement comporte par exemple un conduit principal dont une extrémité comporte une bride de raccordement, et une pluralité de conduits raccordés sur le conduit principal et destinés à communiquer respectivement avec chaque conduit d'échappement de la culasse. Les conduits sont maintenus sur la culasse par un système de bridage formé d'une bride destinée à être fixée sur la culasse du moteur par des moyens de fixation tels que des vis, directement vissées dans des trous taraudés de la culasse, ou par des goujons, implantés dans la culasse, et écrous vissés sur les dits goujons. La fixation d'un collecteur d'échappement à la culasse est généralement précédée d'une étape de centrage au cours de laquelle, le collecteur d'échappement est centré sur la culasse par l'intermédiaire d'un pion de centrage. Le pion de centrage est disposé dans un logement de positionnement délimité dans la culasse, de préférence disposé au centre de la culasse. Lors du montage de collecteur d'échappement sur la culasse, le pion de centrage, habituellement en acier plein, vient se placer dans une rainure associée du collecteur d'échappement. La bride destinée à être fixée sur la culasse est généralement soumise à une température sensiblement de l'ordre de 200°C, alors que la bride de raccordement destinée à être fixée sur le turbocompresseur est sensiblement de l'ordre de 800°C. Cette différence de température génère une dilatation au niveau de la rainure dans laquelle est logé le pion de centrage. La rainure a alors tendance à se refermer, provoquant par la même occasion un coincement du pion de centrage. An exhaust manifold is generally attached to a cylinder head of an internal combustion engine and is intended to collect the exhaust gases leaving different ducts of the cylinder head to transport them, at the outlet of the manifold, in a single duct to equipment such as the turbocharger. The exhaust manifold comprises for example a main duct, one end of which comprises a connecting flange, and a plurality of ducts connected to the main duct and intended to communicate respectively with each exhaust duct of the cylinder head. The ducts are held on the cylinder head by a clamping system formed of a flange intended to be fixed to the cylinder head of the engine by fastening means such as screws, directly screwed into tapped holes of the cylinder head, or by studs , implanted in the cylinder head, and nuts screwed on said studs. The attachment of an exhaust manifold to the cylinder head is usually preceded by a centering step during which the exhaust manifold is centered on the cylinder head via a centering pin. The centering pin is disposed in a positioning housing defined in the cylinder head, preferably disposed in the center of the cylinder head. When mounting exhaust manifold on the cylinder head, the centering pin, usually solid steel, is placed in an associated groove of the exhaust manifold. The flange to be fixed on the cylinder head is generally subjected to a temperature substantially of the order of 200 ° C, while the connecting flange to be fixed on the turbocharger is substantially of the order of 800 ° C. This difference in temperature generates an expansion at the groove in which the centering pin is housed. The groove then tends to close, causing at the same time jamming of the centering pin.
Lorsque le collecteur d'échappement est en fonte, le coincement du pion de centrage engendre des criques et des fissures à l'intersection, ou jonction, des conduits du collecteur d'échappement qu'il faut alors remplacer. Afin de pallier cet inconvénient, l'invention a pour but un agencement pour la mise en position de montage d'un collecteur d'échappement sur une culasse de moteur à combustion interne, dans lequel le collecteur d'échappement, lorsqu'il est en fonte, ne se fissure pas et ne comporte pas de criques au niveau des jonctions des conduits dues à des dilatations thermiques des brides de fixations. Dans ce but, l'invention a pour objet un agencement de mise en position de montage d'un collecteur d'échappement avec une culasse, ledit collecteur comportant un conduit principal, deux conduits adjacents débouchant dans ledit conduit principal, lesdits conduits ayant une jonction commune, deux brides de fixation adjacentes aptes à relier la culasse auxdits conduits, un moyen de centrage disposé entre lesdites brides de fixation, un logement de centrage délimité dans ladite culasse apte à recevoir ledit moyen de centrage, caractérisé en ce que le moyen de centrage est apte à être maintenu entre lesdites brides de fixation par expansion élastique de sorte que lorsque le collecteur subit des sollicitations thermiques, le moyen de centrage rattrape des jeux de dilatation desdites brides de fixation adjacentes. When the exhaust manifold is cast iron, the jamming of the centering pin generates cracks and cracks at the intersection, or junction, the ducts of the exhaust manifold which must then be replaced. In order to overcome this drawback, the object of the invention is to provide an arrangement for mounting an exhaust manifold on an internal combustion engine cylinder head, in which the exhaust manifold, when in cast iron, does not crack and has no cracks at the junctions of the ducts due to thermal expansion of the fastening flanges. For this purpose, the subject of the invention is an arrangement for putting in an assembly position an exhaust manifold with a cylinder head, said manifold comprising a main duct, two adjacent ducts opening into said main duct, said ducts having a junction common, two adjacent fastening flanges adapted to connect the yoke to said conduits, a centering means disposed between said fastening flanges, a centering housing delimited in said yoke adapted to receive said centering means, characterized in that the centering means is capable of being held between said fixing flanges by elastic expansion so that when the collector is subjected to thermal stresses, the centering means catches expansion gaps of said adjacent fastening flanges.
Un tel agencement permet d'éviter des fissures des conduits d'un collecteur d'échappement en fonte, et permet avantageusement d'augmenter leur durée de vie. Cet agencement est par ailleurs simple et peu coûteux. Such an arrangement makes it possible to prevent cracks in the ducts of a cast iron exhaust manifold, and advantageously makes it possible to increase their service life. This arrangement is also simple and inexpensive.
L'invention concerne également un moteur à combustion interne comportant un tel agencement. L'invention concerne également un véhicule dans lequel est monté un tel moteur à combustion. The invention also relates to an internal combustion engine comprising such an arrangement. The invention also relates to a vehicle in which such a combustion engine is mounted.
Selon d'autres caractéristiques, - le moyen de centrage peut être disposé dans un plan sensiblement orthogonal au plan contenant la jonction commune desdits conduits adjacents, le moyen de centrage peut avoir une forme sensiblement cylindrique creuse, et peut être sensiblement fendu, - le moyen de centrage peut être en acier à ressort, le moyen de centrage peut être une goupille élastique. According to other features, the centering means may be arranged in a plane substantially orthogonal to the plane containing the common junction of said adjacent ducts, the centering means may have a substantially hollow cylindrical shape, and may be substantially split, the means centering may be spring steel, the centering means may be an elastic pin.
L'invention concerne également un moteur à combustion comportant un tel dispositif de fixation d'un collecteur d'échappement à une culasse. L'invention concerne également un véhicule automobile comportant un tel moteur à combustion ou un tel dispositif de fixation. D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre, et en regard des dessins annexés, donnés à titre d'exemples non limitatifs et sur lesquels : - la figure 1 représente une vue en perspective d'un collecteur d'échappement et d'une culasse, - la figure 2 représente une vue en perspective du collecteur d'échappement de la figure 1, la figure 3 représente une deuxième vue en perspective du collecteur d'échappement des figures 1 et 2. The invention also relates to a combustion engine comprising such a device for fixing an exhaust manifold to a cylinder head. The invention also relates to a motor vehicle comprising such a combustion engine or such a fixing device. Other features, objects and advantages of the present invention will appear on reading the detailed description which follows, and with reference to the appended drawings, given by way of non-limiting examples and in which: FIG. in perspective of an exhaust manifold and a cylinder head, - Figure 2 shows a perspective view of the exhaust manifold of Figure 1, Figure 3 shows a second perspective view of the exhaust manifold figures 1 and 2.
A la figure 1, on a représenté un agencement pour le centrage d'un collecteur d'échappement 1 sur une culasse 2 d'un moteur à combustion interne (non représenté).In Figure 1, there is shown an arrangement for centering an exhaust manifold 1 on a cylinder head 2 of an internal combustion engine (not shown).
20 Le collecteur d'échappement 1, tel qu'illustré, est destiné à être associé à une culasse à quatre cylindres en ligne. Le collecteur 1 comporte des tubulures de raccordement de forme générale en râteau dont les dents sont constituées par les conduits d'entrée 11,12,13,14 des gaz d'échappement sensiblement alignés.The exhaust manifold 1, as illustrated, is intended to be associated with a four-cylinder in-line cylinder head. The manifold 1 comprises connection pipes of generally rake shape whose teeth are constituted by the inlet ducts 11,12,13,14 substantially aligned exhaust gas.
25 Chaque conduit 11,12,13,14 du collecteur 1 comporte une extrémité de sortie qui débouche dans un conduit principal de sortie 15. Tels que représentés aux différentes figures, le conduit 11 et le conduit 12 ont une intersection ou jonction commune. Il en est de même pour les conduits 12 et 13, et pour les conduits 13 et 14. Ainsi deux conduits adjacents comportent une jonction commune. II sera compris que 30 cette intersection ou jonction des conduits est donnée à titre d'exemple non limitatif, les conduits pouvant comporter une unique intersection commune 17, ou pouvant être associés deux à deux. Le conduit principal de sortie 15 porte une bride de sortie des gaz d'échappement 18 connectée à un conduit d'échappement non représenté, tel que le 35 turbocompresseur.Each duct 11, 12, 13, 14 of the collector 1 has an outlet end which opens into an outlet main duct 15. As shown in the various figures, the duct 11 and the duct 12 have a common intersection or junction. It is the same for the ducts 12 and 13, and for the ducts 13 and 14. Thus two adjacent ducts have a common junction. It will be understood that this intersection or junction of the ducts is given by way of nonlimiting example, the ducts may comprise a single common intersection 17, or may be associated two by two. The main outlet duct 15 carries an exhaust gas outlet flange 18 connected to an unrepresented exhaust duct, such as the turbocharger.
15 Les conduits d'entrée 11,12,13,14 du collecteur d'échappement 1 sont également solidaires d'une bride d'entrée 3 apte à relier les conduits à la face échappement 20 de la culasse 2. Telle que représentée, la bride d'entrée 3 comporte une première bride 31 à laquelle sont fixés les conduits d'entrée 11 et 12, et une deuxième bride 32, adjacente la première bride 31, à laquelle sont fixés les conduits d'entrée 13 et 14. Une rainure centrale 33 est ainsi délimitée dans la bride 3 par la première bride 31 et par la deuxième bride 32. La rainure centrale 33 est apte à recevoir un moyen de centrage 4, également adapté à coopérer, lors d'une étape de montage du collecteur d'échappement 1 sur la culasse 2, avec un logement de centrage 21 délimité dans la culasse 2. Il sera compris que lors de l'agencement du collecteur d'échappement 1 avec la culasse 2, le moyen de centrage 4 peut être indifféremment disposé dans la rainure centrale 33 entre la première bride de fixation 31 et la deuxième bride de fixation 32, puis dans le logement de centrage 21, ou bien dans une premier temps être disposé dans le logement de centrage 21 délimité dans la culasse 2 puis se positionner par guidage dans la rainure centrale 33. Aux différentes figures, le moteur à combustion a un nombre pair de cylindres et le logement de centrage 21 est avantageusement disposé au centre de la culasse 2. Le positionnement du collecteur d'échappement avec la culasse est ainsi équilibré. Ainsi le moyen de centrage 4 est adapté à coopérer avec la rainure centrale 33 délimitée dans la bride 3 et avec le logement de centrage 21 délimité dans la culasse 2. Le moyen de centrage 4 est apte à être maintenu entre la première bride de fixation 31 et la deuxième bride de fixation 32 par expansion élastique de sorte que lorsque le collecteur subit des sollicitations thermiques, le moyen de centrage 4 rattrape des jeux de dilatation que subissent les deux brides adjacentes 31 et 32. Le moyen de centrage 4 est disposé dans un plan sensiblement orthogonal au plan contenant la jonction commune 17 des conduits adjacents 12 et 13 afin de rattraper la dilatation de la bride du collecteur d'échappement. Le moyen de centrage 4 est disposé dans un plan sensiblement orthogonal au plan contenant la jonction commune de deux conduits adjacents appartenant chacun à une bride différente. Le moyen de centrage 4 a une forme sensiblement cylindrique creuse, et est sensiblement fendu sur toute sa longueur. Aux différentes figures, le moyen de centrage 4 est en acier à ressort. Lorsque la bride 3 se dilate, la première bride 31 et la deuxième bride 32 se rapprochent, le moyen de centrage 4 se déforme tout en restant logé dans la rainure centrale 33. Le moyen de centrage 4, contrairement à un pion de centrage classique, ne se casse pas et permet de rattraper les jeux de dilatation dus aux différentes températures que subit le collecteur d'échappement 1. L'intersection 17 des conduits 11,12,13,14 ne se fissure pas lorsque la rainure centrale 33 tend à rétrécir. Dans un autre mode de réalisation non représenté, le moteur est un moteur à trois cylindres. La bride de fixation du collecteur d'échappement comporte trois brides de fixation, chaque conduit d'entrée étant fixé à sa bride de fixation associée. La bride de fixation comporte ainsi deux rainures centrales, une première rainure étant disposée entre la première et la deuxième bride, et une deuxième rainure étant disposée entre la deuxième et la troisième bride. Un premier moyen de centrage est placé dans la première rainure et un deuxième moyen de centrage est disposé dans la deuxième rainure. La culasse, dans ce mode de réalisation comporte deux logements de centrage associés à chaque moyen de centrage ou chaque rainure. Ainsi, chaque rainure est disposée dans un plan orthogonal à la jonction de deux conduits adjacents appartenant chacun à une bride différente. Un tel agencement de mise en position de montage du collecteur d'échappement 1 avec la culasse 2 peut également être réalisé en utilisant 20 avantageusement une goupille élastique comme moyen de centrage 4. Cet agencement permet notamment d'éviter de changer les collecteurs d'échappement sur des véhicules suite à des fissures ou des criques au niveau des jonctions des conduits. The inlet ducts 11, 12, 13, 14 of the exhaust manifold 1 are also integral with an inlet flange 3 capable of connecting the ducts to the exhaust face 20 of the cylinder head 2. As shown, the inlet flange 3 comprises a first flange 31 to which are fixed the inlet ducts 11 and 12, and a second flange 32, adjacent the first flange 31, to which are fixed the inlet ducts 13 and 14. A groove central 33 is thus defined in the flange 3 by the first flange 31 and the second flange 32. The central groove 33 is adapted to receive a centering means 4, also adapted to cooperate, during a mounting step of the collector d 1 on the cylinder head 2, with a centering housing 21 delimited in the cylinder head 2. It will be understood that when the exhaust manifold 1 is fitted with the cylinder head 2, the centering means 4 can be indifferently disposed in the central groove 33 between the first fixing flange 31 and the second fastening flange 32, then in the centering recess 21, or in a first step being placed in the centering recess 21 delimited in the yoke 2 and then positioning by guiding in the central groove 33. In the various figures, the combustion engine has an even number of cylinders and the centering housing 21 is advantageously arranged in the center of the cylinder head 2. The positioning of the exhaust manifold with the cylinder head is thus balanced. Thus the centering means 4 is adapted to cooperate with the central groove 33 delimited in the flange 3 and with the centering housing 21 delimited in the yoke 2. The centering means 4 is able to be held between the first fastening flange 31 and the second fixing flange 32 by elastic expansion so that when the collector is subjected to thermal stresses, the centering means 4 catches up the expansion gaps which the two adjacent flanges 31 and 32 undergo. The centering means 4 is arranged in a plane substantially orthogonal to the plane containing the common junction 17 of the adjacent ducts 12 and 13 in order to make up the expansion of the flange of the exhaust manifold. The centering means 4 is disposed in a plane substantially orthogonal to the plane containing the joint junction of two adjacent ducts each belonging to a different flange. The centering means 4 has a substantially hollow cylindrical shape, and is substantially split along its entire length. In the various figures, the centering means 4 is made of spring steel. When the flange 3 expands, the first flange 31 and the second flange 32 come closer, the centering means 4 is deformed while remaining housed in the central groove 33. The centering means 4, unlike a conventional centering pin, does not break and makes it possible to make up the expansion gaps due to the different temperatures experienced by the exhaust manifold 1. The intersection 17 of the ducts 11, 12, 13, 14 does not crack when the central groove 33 tends to shrink . In another embodiment not shown, the engine is a three-cylinder engine. The exhaust manifold mounting flange has three attachment flanges, each inlet duct being attached to its associated attachment flange. The fixing flange thus comprises two central grooves, a first groove being disposed between the first and the second flange, and a second groove being disposed between the second and third flanges. First centering means is located in the first groove and second centering means is disposed in the second groove. The cylinder head, in this embodiment comprises two centering recesses associated with each centering means or each groove. Thus, each groove is disposed in a plane orthogonal to the junction of two adjacent ducts each belonging to a different flange. Such a mounting arrangement of the exhaust manifold 1 with the cylinder head 2 can also be realized by advantageously using an elastic pin as the centering means 4. This arrangement makes it possible in particular to avoid changing the exhaust manifolds. on vehicles due to cracks or cracks at the junctions of the ducts.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0759685A FR2924643A1 (en) | 2007-12-10 | 2007-12-10 | Positioning arrangement for exhaust manifold of e.g. motor vehicle, has centering unit maintained between flanges by elastic expansion such that unit retrieves dilatation gap of flanges when manifold is subjected to thermal stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0759685A FR2924643A1 (en) | 2007-12-10 | 2007-12-10 | Positioning arrangement for exhaust manifold of e.g. motor vehicle, has centering unit maintained between flanges by elastic expansion such that unit retrieves dilatation gap of flanges when manifold is subjected to thermal stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2924643A1 true FR2924643A1 (en) | 2009-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0759685A Pending FR2924643A1 (en) | 2007-12-10 | 2007-12-10 | Positioning arrangement for exhaust manifold of e.g. motor vehicle, has centering unit maintained between flanges by elastic expansion such that unit retrieves dilatation gap of flanges when manifold is subjected to thermal stress |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2924643A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113780A1 (en) * | 2010-03-18 | 2011-09-22 | Avl List Gmbh | Internal combustion engine having a connecting assembly for a cylinder head |
| GB2494647A (en) * | 2011-09-13 | 2013-03-20 | Ford Global Tech Llc | An Engine Exhaust Manifold with Independent Flanges and Flange Spacers |
| FR3001999A1 (en) * | 2013-02-08 | 2014-08-15 | Peugeot Citroen Automobiles Sa | Manifold for collecting exhaust gas produced by internal combustion engine of car, has pipes provided with supports that are spaced from each other by interstitial space, which accommodates holds provided with supporting element on supports |
| EP2900950B1 (en) * | 2012-10-15 | 2019-04-10 | Toyota Jidosha Kabushiki Kaisha | Exhaust manifold mounting structure for internal combustion engine |
| CN114108345A (en) * | 2021-11-19 | 2022-03-01 | 中车长春轨道客车股份有限公司 | Thermal stress relief structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960619A1 (en) * | 1999-12-16 | 2001-07-05 | Daimler Chrysler Ag | System for fastening flange on exhaust gas manifold to cylinder head comprises stretchable spacers in mounting bores which allow its position to be adjusted and releasable clips on flange which fit over rim of each spacer |
| DE10063474A1 (en) * | 2000-12-20 | 2002-07-11 | Guenther Ebinger | Connection in exhaust system has flange for clamp arm with resting surface widening convexly in pressurizing direction |
| DE202004018976U1 (en) * | 2004-12-08 | 2006-04-13 | Heinrich Gillet Gmbh | Device for fastening of exhaust manifold to cylinder head of engine has studbolts on cylinder head which align with holes for fastening elements, whereby studbolts have head, and fastening holes have shape of keyhole |
| FR2886364A1 (en) * | 2005-05-24 | 2006-12-01 | Renault Sas | Flat metal gasket e.g. for i.c. engine cylinder head and exhaust manifold has connecting portions between seal sections made with elastically deformable zones |
-
2007
- 2007-12-10 FR FR0759685A patent/FR2924643A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960619A1 (en) * | 1999-12-16 | 2001-07-05 | Daimler Chrysler Ag | System for fastening flange on exhaust gas manifold to cylinder head comprises stretchable spacers in mounting bores which allow its position to be adjusted and releasable clips on flange which fit over rim of each spacer |
| DE10063474A1 (en) * | 2000-12-20 | 2002-07-11 | Guenther Ebinger | Connection in exhaust system has flange for clamp arm with resting surface widening convexly in pressurizing direction |
| DE202004018976U1 (en) * | 2004-12-08 | 2006-04-13 | Heinrich Gillet Gmbh | Device for fastening of exhaust manifold to cylinder head of engine has studbolts on cylinder head which align with holes for fastening elements, whereby studbolts have head, and fastening holes have shape of keyhole |
| FR2886364A1 (en) * | 2005-05-24 | 2006-12-01 | Renault Sas | Flat metal gasket e.g. for i.c. engine cylinder head and exhaust manifold has connecting portions between seal sections made with elastically deformable zones |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113780A1 (en) * | 2010-03-18 | 2011-09-22 | Avl List Gmbh | Internal combustion engine having a connecting assembly for a cylinder head |
| WO2011113776A1 (en) * | 2010-03-18 | 2011-09-22 | Avl List Gmbh | Internal combustion engine having a connecting assembly for a cylinder head |
| GB2494647A (en) * | 2011-09-13 | 2013-03-20 | Ford Global Tech Llc | An Engine Exhaust Manifold with Independent Flanges and Flange Spacers |
| GB2494744A (en) * | 2011-09-13 | 2013-03-20 | Ford Global Tech Llc | Engine exhaust manifold having independent flanges spaced by a rigid spacer |
| CN102996214A (en) * | 2011-09-13 | 2013-03-27 | 福特全球技术公司 | Exhaust manifold for an engine |
| US9080496B2 (en) | 2011-09-13 | 2015-07-14 | Ford Global Technologies, Llc | Exhaust manifold for an engine and method for manufacture |
| RU2606461C2 (en) * | 2011-09-13 | 2017-01-10 | Форд Глобал Технолоджис, ЛЛК | Exhaust manifold for engine |
| CN102996214B (en) * | 2011-09-13 | 2017-03-01 | 福特全球技术公司 | Exhaust manifold for electromotor |
| GB2494744B (en) * | 2011-09-13 | 2017-09-27 | Ford Global Tech Llc | An engine exhaust manifold using rigid spacers to reduce distortion |
| EP2900950B1 (en) * | 2012-10-15 | 2019-04-10 | Toyota Jidosha Kabushiki Kaisha | Exhaust manifold mounting structure for internal combustion engine |
| FR3001999A1 (en) * | 2013-02-08 | 2014-08-15 | Peugeot Citroen Automobiles Sa | Manifold for collecting exhaust gas produced by internal combustion engine of car, has pipes provided with supports that are spaced from each other by interstitial space, which accommodates holds provided with supporting element on supports |
| CN114108345A (en) * | 2021-11-19 | 2022-03-01 | 中车长春轨道客车股份有限公司 | Thermal stress relief structure |
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