FR2851791A1 - Injector sealing joint comprises circular projecting support portion compressed between injector circular surfaces and cylinder head wall - Google Patents
Injector sealing joint comprises circular projecting support portion compressed between injector circular surfaces and cylinder head wall Download PDFInfo
- Publication number
- FR2851791A1 FR2851791A1 FR0302452A FR0302452A FR2851791A1 FR 2851791 A1 FR2851791 A1 FR 2851791A1 FR 0302452 A FR0302452 A FR 0302452A FR 0302452 A FR0302452 A FR 0302452A FR 2851791 A1 FR2851791 A1 FR 2851791A1
- Authority
- FR
- France
- Prior art keywords
- seal
- injector
- circular
- cylinder head
- wall
- 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.)
- Granted
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Classifications
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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- 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
- F16J15/0881—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by plastic deformation of the packing
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- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Joint pour injecteur à fort coefficient d'étanchéitéSeal for injector with high sealing coefficient
La présente invention se rapporte à un joint d'étanchéité pour les injecteurs des moteurs à combustion interne. The present invention relates to a seal for injectors of internal combustion engines.
Un tel joint est adapté à être comprimé entre l'injecteur et la paroi de culasse surmontant le cylindre, dans laquelle est ménagé un perçage qui débouche dans la chambre du cylindre. Such a seal is adapted to be compressed between the injector and the cylinder head wall surmounting the cylinder, in which a bore is formed which opens into the cylinder chamber.
Des dispositifs d'injection connus sont formés d'un corps cylindrique 10 qui se prolonge par une buse en formant un épaulement et cet épaulement est adapté à venir en appui contre le pourtour du perçage dans un évidement cylindrique formant lamage apte à recevoir au moins une partie dudit corps cylindrique. Un joint torique est comprimé entre la surface d'appui formé par le lamage autour dudit perçage et l'épaulement du corps cylindrique 15 grâce à des moyens de liaison réglables du type à vis, de façon à assurer l'étanchéité entre le dispositif d'injection et la paroi de culasse. Known injection devices are formed by a cylindrical body 10 which is extended by a nozzle by forming a shoulder and this shoulder is adapted to come into abutment against the periphery of the bore in a cylindrical recess forming countersink capable of receiving at least one part of said cylindrical body. An O-ring is compressed between the bearing surface formed by the countersinking around said bore and the shoulder of the cylindrical body 15 by means of adjustable connection means of the screw type, so as to ensure the seal between the device injection and the cylinder head wall.
Cependant, l'accroissement des performances des moteurs à combustion interne est réalisé, notamment, en augmentant les pressions internes des chambres de combustion. Par conséquent, l'étanchéité, 20 notamment entre l'injecteur et la culasse, en est d'autant plus mal assurée. However, the increase in the performance of internal combustion engines is achieved, in particular, by increasing the internal pressures of the combustion chambers. Consequently, the seal, in particular between the injector and the cylinder head, is all the more poorly ensured.
Afin d'y pallier, on réduit au maximum la surface des ouvertures qui débouchent dans la chambre de combustion et notamment en diminuant le diamètre des buses d'injection en mélange combustible, et on comprime plus encore le joint d'étanchéité qui est généralement un joint torique et 25 dont les surfaces d'appui tendent à s'écraser. In order to overcome this, the surface of the openings which open into the combustion chamber is reduced as much as possible, in particular by reducing the diameter of the fuel mixture injection nozzles, and the seal which is generally a more compressed O-ring and 25 whose bearing surfaces tend to crush.
Cependant, les limites des dimensions des surfaces exposées à la pression sont rapidement atteintes puisqu'elles dépendent de la quantité de mélange combustible que l'on souhaite introduire dans la chambre de combustion et les contraintes mécaniques entre le dispositif d'injection et la 30 paroi de culasse impose un serrage maximal et donc une compression du joint d'étanchéité maximale. However, the limits of the dimensions of the surfaces exposed to the pressure are quickly reached since they depend on the quantity of combustible mixture which it is desired to introduce into the combustion chamber and the mechanical stresses between the injection device and the wall. cylinder head requires maximum tightening and therefore maximum compression of the gasket.
On se référera notamment au document FR 2 801 346, dans lequel un type particulier de dispositif d'injection est monté dans les cylindres, ce type particulier ne permettant pas la réduction des diamètres de buse ni le 35 serrage supplémentaire du joint d'étanchéité. Reference is made in particular to document FR 2 801 346, in which a particular type of injection device is mounted in the cylinders, this particular type not allowing the reduction of the nozzle diameters nor the additional tightening of the seal.
Un problème qui se pose et que vis à résoudre la présente invention est alors de proposer un joint d'étanchéité qui permette d'assurer une étanchéité parfaite entre l'injecteur et la paroi de culasse sans qu'il ne soit excessivement comprimé ni que la surface exposée à la pression dans la chambre de combustion ne soit exagérément réduite. A problem which arises and which the present invention has to solve is then to propose a seal which makes it possible to ensure a perfect seal between the injector and the cylinder head wall without it being excessively compressed or the area exposed to pressure in the combustion chamber is not excessively reduced.
Dans ce but, la présente invention propose un joint d'étanchéité destiné à être monté entre un injecteur et la paroi d'une culasse d'un moteur à combustion interne, ledit injecteur traversant au moins partiellement un perçage ménagé dans ladite paroi; ladite paroi et ledit injecteur comprenant 1o deux surfaces circulaires en regard, autour dudit perçage et entre lesquelles ledit joint d'étanchéité est adapté à être comprimé; ledit joint d'étanchéité comprenant au moins une portion d'appui circulaire en saillie dont la section radiale présente une extrémité libre angulaire adaptée à venir prendre appui contre l'une desdites deux surfaces circulaires. For this purpose, the present invention provides a seal intended to be mounted between an injector and the wall of a cylinder head of an internal combustion engine, said injector at least partially passing through a bore formed in said wall; said wall and said injector comprising 1o two opposite circular surfaces, around said bore and between which said seal is adapted to be compressed; said seal comprising at least one projecting circular bearing portion whose radial section has an angular free end adapted to come to bear against one of said two circular surfaces.
Ainsi, une caractéristique de l'invention réside dans la forme du joint d'étanchéité dont ladite portion d'appui présente une extrémité libre angulaire adaptée à venir en appui contre l'une desdites surfaces circulaires. Thus, a characteristic of the invention resides in the shape of the seal, of which said support portion has an angular free end adapted to come to bear against one of said circular surfaces.
De la sorte, et contrairement au joint torique dont la surface d'appui tend à s'élargir, ce qui pour une contrainte donnée diminue la force de pression 20 entre le joint et la surface circulaire, la surface d'appui du joint d'étanchéité est constituée par ladite extrémité libre angulaire qui pour la même contrainte procure une plus grande pression entre le joint d'étanchéité et la surface circulaire. En conséquence, l'étanchéité entre l'injecteur et la paroi de culasse est parfaitement assurée malgré les fortes pressions de la 25 chambre de combustion. In this way, and unlike the O-ring, the bearing surface of which tends to widen, which for a given stress reduces the pressure force between the joint and the circular surface, the bearing surface of the joint sealing is constituted by said angular free end which for the same stress provides greater pressure between the seal and the circular surface. Consequently, the seal between the injector and the cylinder head wall is perfectly ensured despite the high pressures of the combustion chamber.
Préférentiellement, ladite portion d'appui circulaire présente une section radiale triangulaire, l'arête libre de la section triangulaire formant l'extrémité libre angulaire qui est destinée à prendre appui contre la surface circulaire. Preferably, said circular support portion has a triangular radial section, the free edge of the triangular section forming the angular free end which is intended to bear against the circular surface.
Selon un mode de mise en òuvre de l'invention particulièrement avantageux, ledit joint d'étanchéité comprend deux portions d'appui circulaires en saillie opposées l'une de l'autre adaptées à venir prendre appui respectivement contre chacune desdites surfaces circulaires. De la sorte, les deux surfaces circulaires en regard sont adaptées à recevoir respectivement une portion circulaire de section radiale angulaire ce qui accroît plus encore l'étanchéité entre lesdites surfaces circulaires. According to a particularly advantageous embodiment of the invention, said seal comprises two projecting circular bearing portions opposite one another adapted to come to bear respectively against each of said circular surfaces. In this way, the two opposite circular surfaces are adapted to receive respectively a circular portion of angular radial section which further increases the seal between said circular surfaces.
Selon un mode de réalisation particulièrement avantageux de l'invention, la section radiale dudit joint d'étanchéité présente une portion 5 renflée correspondant auxdites deux portions d'appui circulaires en saillie opposées, prolongée de chaque côté respectivement par une portion interne et une portion externe, qui forment deux bords opposés aptes à venir prendre appui contre un élément central pour le bord interne et contre la paroi interne du lamage pour le bord externe ce qui permet de centrer ledit 10 élément central. According to a particularly advantageous embodiment of the invention, the radial section of said seal has a bulged portion 5 corresponding to said two circular projecting portions in opposite projection, extended on each side respectively by an inner portion and an outer portion , which form two opposite edges capable of coming to bear against a central element for the internal edge and against the internal wall of the counterbore for the external edge which makes it possible to center said central element.
Avantageusement, ladite portion interne présente un bord interne libre et lesdites portions d'appui circulaires sont éloignées dudit bord interne libre. De la sorte, la portion d'appui du joint d'étanchéité est espacée dudit élément central d'une distance déterminée. Ainsi, dans un autre mode de 15 mise en oeuvre de l'invention particulièrement avantageux, dans lequel l'injecteur est soumis à des vibrations ultrasoniques, le corps dudit injecteur présentant selon son axe longitudinal un épaulement prolongé par une collerette formant ensemble ladite surface d'appui circulaire et ledit injecteur se prolongeant en s'évasant à partir de ladite collerette selon un 20 tronc de cône, l'intersection du cône défini par ledit tronc de cône avec ladite surface d'appui circulaire formant un cercle, autour duquel ladite portion d'appui circulaire dudit joint d'étanchéité est adaptée à venir prendre appui, la propagation longitudinale des trains d'ondes n'est pas affectée. On expliquera plus en détail dans la suite de la description les 25 avantages d'une telle configuration. Advantageously, said internal portion has a free internal edge and said circular bearing portions are distant from said free internal edge. In this way, the bearing portion of the seal is spaced from said central element by a determined distance. Thus, in another particularly advantageous embodiment of the invention, in which the injector is subjected to ultrasonic vibrations, the body of said injector having along its longitudinal axis a shoulder extended by a flange forming together said surface d circular support and said injector extending by widening from said flange according to a truncated cone, the intersection of the cone defined by said truncated cone with said circular support surface forming a circle, around which said portion circular support of said seal is adapted to come to bear, the longitudinal propagation of the wave trains is not affected. The advantages of such a configuration will be explained in more detail in the following description.
D'autres particularités et avantages de l'invention ressortiront à la lecture de la description faite ci-après d'un mode de réalisation particulier de l'invention, donné à titre indicatif mais non limitatif, en référence aux dessins annexés sur lesquels: - la Figure 1 est une vue schématique en coupe axiale d'un joint d'étanchéité conforme à l'invention; et, - la Figure 2 est une vue en section axiale du joint d'étanchéité illustré sur la Figure 1, monté entre un injecteur la paroi d'une culasse. Other particularities and advantages of the invention will emerge on reading the description given below of a particular embodiment of the invention, given by way of indication but not limitation, with reference to the appended drawings in which: - Figure 1 is a schematic view in axial section of a seal according to the invention; and, - Figure 2 is an axial sectional view of the seal illustrated in Figure 1, mounted between an injector the wall of a cylinder head.
La Figure 1 illustre un joint d'étanchéité conforme à l'invention qui est adapté à être monté dans un type de dispositifs d'injection particuliers adaptés à être entraînés en vibration. Figure 1 illustrates a seal according to the invention which is adapted to be mounted in a type of particular injection devices adapted to be driven in vibration.
Le joint d'étanchéité illustré sur la Figure 1, est en coupe axiale selon 5 un axe de symétrie A, qui fait apparaître deux sections radiales 10, 12, opposées et symétriques, l'une de l'autre par rapport à l'axe A,. The seal illustrated in Figure 1, is in axial section along an axis of symmetry A, which shows two radial sections 10, 12, opposite and symmetrical, one from the other with respect to the axis AT,.
On détaillera l'une des sections radiales 10 illustrée sur la Figure 1. One of the radial sections 10 illustrated in FIG. 1 will be detailed.
Le joint d'étanchéité présente deux portions d'appui 14, 16 opposées l'une de l'autre par rapport à un plan moyen P du joint d'étanchéité et elles 10 sont de forme triangulaire isocèle. Un axe A2 parallèle à l'axe de symétrie AI, coupe les deux extrémités libres angulaires 18, 20 des portions d'appui 14, 16. The seal has two bearing portions 14, 16 opposite one another with respect to a mean plane P of the seal and they 10 are of isosceles triangular shape. An axis A2 parallel to the axis of symmetry AI, intersects the two angular free ends 18, 20 of the bearing portions 14, 16.
Le joint d'étanchéité présente une portion renflée 22 qui est formée par les deux portions d'appui 14, 16 et d'une partie massive 24 du joint 15 d'étanchéité de laquelle elles font saillie. La partie massive 24 se prolonge d'une part vers l'extérieur du joint d'étanchéité en formant un bord externe 26 et d'autre part vers l'intérieur, en formant un bord interne 28. La partie de partie massive 24 qui se prolonge vers l'intérieur est radialement, entre 1,5 à 2,5 fois, par exemple 2 fois supérieure à la partie massive qui se 20 prolonge vers l'extérieur pour procurer un avantage que l'on détaillera en référence à la Figure 2. The seal has a bulged portion 22 which is formed by the two bearing portions 14, 16 and a solid part 24 of the seal 15 from which they project. The solid part 24 extends on the one hand towards the outside of the seal forming an external edge 26 and on the other hand towards the inside, forming an internal edge 28. The part of solid part 24 which is extends inwards radially, between 1.5 to 2.5 times, for example 2 times greater than the solid part which extends outwards to provide an advantage which will be detailed with reference to Figure 2 .
En outre, le diamètre total du joint d'étanchéité, de bord externe à bord externe, est compris entre 15 et 25 mm, par exemple 20 mm et l'épaisseur de la partie massive est comprise entre 1 et 3 mm, par exemple 1,7 mm. Le 25 diamètre interne du joint d'étanchéité, de bord interne à bord interne, est compris entre 6 et 10 mm, par exemple 8,5. In addition, the total diameter of the seal, from outer edge to outer edge, is between 15 and 25 mm, for example 20 mm and the thickness of the solid part is between 1 and 3 mm, for example 1 , 7 mm. The internal diameter of the seal, from internal edge to internal edge, is between 6 and 10 mm, for example 8.5.
Le joint d'étanchéité conforme à l'invention est réalisé dans un métal mou adapté à résister à une température de 250'C, par exemple en cuivre. The seal according to the invention is made of a soft metal adapted to withstand a temperature of 250 ° C, for example copper.
On se référera maintenant à la Figure 2 pour décrire le joint 30 d'étanchéité conforme à l'invention, monté dans une partie d'un dispositif d'injection 30. Reference will now be made to FIG. 2 to describe the seal 30 according to the invention, mounted in a part of an injection device 30.
Le joint d'étanchéité est disposé entre une buse d'injection 32 et une portion de paroi de culasse 34 dans laquelle est pratiqué un perçage 36 formant puits. La portion de paroi de culasse 34, est également susceptible 35 d'être formée d'un fourreau emmanché dans la paroi de la culasse. The seal is disposed between an injection nozzle 32 and a portion of cylinder head wall 34 in which a bore 36 is formed forming a well. The cylinder head wall portion 34 is also capable of being formed of a sheath fitted into the wall of the cylinder head.
Le perçage 36 se compose d'une première partie 38 qui débouche directement dans la chambre de combustion et d'une seconde partie 40 coaxiale formant lamage, les parties étant séparées par un premier épaulement 42 formant une première surface circulaire contre laquelle l'une des portions d'appui 16 du joint d'étanchéité prend appui. The bore 36 consists of a first part 38 which opens directly into the combustion chamber and a second coaxial part 40 forming the countersink, the parts being separated by a first shoulder 42 forming a first circular surface against which one of the bearing portions 16 of the seal is supported.
L'autre portion d'appui 14 est en contact avec une seconde surface circulaire 43 constituée par un second épaulement 44 de la buse d'injection 32, et par une collerette 46 qui prolonge dans un même plan le second épaulement 44. La collerette 46 et le second épaulement 44 forment ladite 1o seconde surface circulaire 43, contre laquelle la portion d'appui 14 apparaît sur la Figure 2 en contact en deux points 45, 47. La buse d'injection 32, se prolonge en s'évasant à partir de ladite collerette 46 sous la forme d'un tronc de cône 48 dont la base forme un décrochement 50. Le cône 52 défini par le tronc de cône 48 et qui le prolonge en traits interrompus sur la Figure 15 2, coupe la seconde surface circulaire 43 en deux points d'intersection diamétralement opposés 54, 56, lesquels se situent respectivement au voisinage des deux points de contact 45, 47 mais entre ces deux points. The other bearing portion 14 is in contact with a second circular surface 43 formed by a second shoulder 44 of the injection nozzle 32, and by a flange 46 which extends in the same plane the second shoulder 44. The flange 46 and the second shoulder 44 form said 1o second circular surface 43, against which the bearing portion 14 appears in FIG. 2 in contact at two points 45, 47. The injection nozzle 32 is extended by flaring from of said flange 46 in the form of a truncated cone 48, the base of which forms a step 50. The cone 52 defined by the truncated cone 48 and which extends it in broken lines in FIG. 15 2, cuts the second circular surface 43 at two diametrically opposite points of intersection 54, 56, which are located respectively in the vicinity of the two contact points 45, 47 but between these two points.
Ainsi, l'intersection du cône 52 et de la seconde surface circulaire 43 forme un cercle, autour duquel ladite portion d'appui circulaire dudit joint 20 d'étanchéité est adaptée à venir prendre appui. Thus, the intersection of the cone 52 and the second circular surface 43 forms a circle, around which said circular bearing portion of said seal 20 is adapted to come to bear.
Telle qu'illustrée sur la Figure 2, la portion d'appui 14 s'applique sur la seconde surface circulaire 43 au droit du décrochement 50. De la sorte, grâce à cette caractéristique, les ondes acoustiques qui sont générées en amont de la buse d'injection 32 et qui s'y achemine jusqu'à son extrémité 25 située dans la chambre de combustion, sont beaucoup moins atténuées lorsqu'elles se propagent à travers l'épaulement 44 car elles ne se dissipent pas dans la portion de paroi de culasse 34 par l'intermédiaire du joint d'étanchéité qui non seulement permet un appui en dehors du chemin de propagation des trains d'ondes mais aussi permet un appui sur une surface 30 de plus faible dimension, au regard d'un joint torique par exemple. As illustrated in FIG. 2, the support portion 14 is applied to the second circular surface 43 in line with the step 50. In this way, thanks to this characteristic, the acoustic waves which are generated upstream of the nozzle injection 32 and which goes there to its end 25 located in the combustion chamber, are much less attenuated when they propagate through the shoulder 44 because they do not dissipate in the wall portion of cylinder head 34 by means of the seal which not only allows support outside the path of propagation of the wave trains but also allows support on a surface 30 of smaller dimension, with regard to an O-ring by example.
En outre, grâce à la forme angulaire de ses portions d'appui, et donc à l'appui sur des surfaces de plus faibles dimensions, pour un effort de bridage donné de la buse d'injection 32 sur la portion de paroi de culasse 34 contre le joint d'étanchéité, l'étanchéité entre ladite buse d'injection 32 et ladite portion de paroi de culasse 34 est bien plus forte car les forces de contact s'appliquent sur une plus petite surface. In addition, by virtue of the angular shape of its bearing portions, and therefore by pressing on surfaces of smaller dimensions, for a given clamping force of the injection nozzle 32 on the cylinder head wall portion 34 against the seal, the seal between said injection nozzle 32 and said cylinder head wall portion 34 is much stronger because the contact forces are applied over a smaller area.
Par ailleurs, on veillera à ce que la partie massive du joint d'étanchéité qui se prolonge vers l'intérieure s'étende au maximum dans l'espace situé 5 entre les surfaces circulaires pour éviter que ne s'y accumulent les gaz chauds provenant de la chambre de combustion, sans toutefois faire contact ni avec la buse d'injection 32 ni avec la portion de paroi de culasse 34. Furthermore, it will be ensured that the massive part of the gasket which extends inwards extends as far as possible in the space situated between the circular surfaces to prevent the accumulation of hot gases therefrom. of the combustion chamber, without however making contact either with the injection nozzle 32 or with the cylinder head wall portion 34.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0302452A FR2851791B1 (en) | 2003-02-28 | 2003-02-28 | SEAL FOR INJECTOR WITH HIGH COEFFICIENT OF SEALING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0302452A FR2851791B1 (en) | 2003-02-28 | 2003-02-28 | SEAL FOR INJECTOR WITH HIGH COEFFICIENT OF SEALING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2851791A1 true FR2851791A1 (en) | 2004-09-03 |
| FR2851791B1 FR2851791B1 (en) | 2007-02-23 |
Family
ID=32843057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0302452A Expired - Fee Related FR2851791B1 (en) | 2003-02-28 | 2003-02-28 | SEAL FOR INJECTOR WITH HIGH COEFFICIENT OF SEALING |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2851791B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006040227A1 (en) * | 2004-10-09 | 2006-04-20 | Robert Bosch Gmbh | Damping element for a fuel injection valve |
| NL2000525C2 (en) * | 2007-03-07 | 2008-09-09 | Hertel Ind Sealings B V | Sealing body with opening for a second body which can be received in the opening, and method for its manufacture. |
| EP2469069A1 (en) * | 2010-12-27 | 2012-06-27 | Continental Automotive GmbH | Dampening Element for an Injection Valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5706787A (en) * | 1995-01-25 | 1998-01-13 | Zexel Corporation | Electromagnetic fuel injection valve and attachment structure thereof |
| DE19941930A1 (en) * | 1999-09-03 | 2001-03-15 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
| US6357759B1 (en) * | 1999-02-15 | 2002-03-19 | Mitsubishi Cable Industries, Ltd. | Jacket seal |
| DE10055641A1 (en) * | 2000-11-10 | 2002-06-13 | Siemens Ag | Sealing element for arrangement between an injector and a cylinder head and injector and cylinder head with such a sealing element |
-
2003
- 2003-02-28 FR FR0302452A patent/FR2851791B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5706787A (en) * | 1995-01-25 | 1998-01-13 | Zexel Corporation | Electromagnetic fuel injection valve and attachment structure thereof |
| US6357759B1 (en) * | 1999-02-15 | 2002-03-19 | Mitsubishi Cable Industries, Ltd. | Jacket seal |
| DE19941930A1 (en) * | 1999-09-03 | 2001-03-15 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
| DE10055641A1 (en) * | 2000-11-10 | 2002-06-13 | Siemens Ag | Sealing element for arrangement between an injector and a cylinder head and injector and cylinder head with such a sealing element |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006040227A1 (en) * | 2004-10-09 | 2006-04-20 | Robert Bosch Gmbh | Damping element for a fuel injection valve |
| US7832376B2 (en) | 2004-10-09 | 2010-11-16 | Robert Bosch Gmbh | Damping element for a fuel injection valve |
| NL2000525C2 (en) * | 2007-03-07 | 2008-09-09 | Hertel Ind Sealings B V | Sealing body with opening for a second body which can be received in the opening, and method for its manufacture. |
| WO2008108650A1 (en) * | 2007-03-07 | 2008-09-12 | Hertel Industrial Sealings B.V. | Sealing body with opening for a second body receivable in the opening, and method for manufacture thereof |
| EP2469069A1 (en) * | 2010-12-27 | 2012-06-27 | Continental Automotive GmbH | Dampening Element for an Injection Valve |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2851791B1 (en) | 2007-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20101029 |