EP1355057B1 - Exhaust gas recirculation device for an internal combustion engine - Google Patents

Exhaust gas recirculation device for an internal combustion engine Download PDF

Info

Publication number
EP1355057B1
EP1355057B1 EP20030005203 EP03005203A EP1355057B1 EP 1355057 B1 EP1355057 B1 EP 1355057B1 EP 20030005203 EP20030005203 EP 20030005203 EP 03005203 A EP03005203 A EP 03005203A EP 1355057 B1 EP1355057 B1 EP 1355057B1
Authority
EP
European Patent Office
Prior art keywords
channel
housing
valve
exhaust gas
valve housing
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 - Fee Related
Application number
EP20030005203
Other languages
German (de)
French (fr)
Other versions
EP1355057A2 (en
EP1355057A3 (en
Inventor
Bernd Dr.-Ing. Bareis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BorgWarner Esslingen GmbH
Original Assignee
BorgWarner Esslingen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BorgWarner Esslingen GmbH filed Critical BorgWarner Esslingen GmbH
Publication of EP1355057A2 publication Critical patent/EP1355057A2/en
Publication of EP1355057A3 publication Critical patent/EP1355057A3/en
Application granted granted Critical
Publication of EP1355057B1 publication Critical patent/EP1355057B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • F02M26/73—Housings with means for heating or cooling the EGR valve
    • 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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages

Definitions

  • the invention relates to a device for recirculating the exhaust gas of an internal combustion engine with the features in the preamble of claim 1.
  • a device of this type is known ( DE 199 20 520 A1 ), in which at one end a drive device receiving and at the other end containing the exhaust valve, integrally continuous valve housing includes an inner annular coolant passage through which a coolant is hin frenchleitbar, z. B. is diverted from the coolant circuit of the internal combustion engine.
  • the valve housing can be cooled, whereby adjacent components of the exhaust valve can be cooled via this cooling of the valve housing, for. B. the valve member actuating valve stem. Due to the cooling in this area, the heat introduced there by the exhaust gas to be controlled is also kept away from the drive device.
  • the formation of the annular inner coolant channel in the valve housing is associated with comparatively high production costs. So z. B.
  • the actual valve housing is formed from a tube part with a radial flange part, wherein the tube part contains the valve seat, which is dominated by a likewise tubular, widened at the end to a valve head valve body.
  • the tubular valve housing is inserted into a cylinder space of a housing and connected in the region of the flange with this housing.
  • This housing has an inlet and outlet for exhaust gas and an annular coolant channel, which is supplied via an inlet for cooling coolant, which is discharged via an outlet.
  • the navbetätigbares valve member are arranged with valve seat at the lower end of a housing, at the valve seat opposite end of a drive means for the valve member is arranged.
  • a drive means for the valve member is arranged for rotary actuation of the valve member.
  • a shaft which is guided, starting from the drive means through the housing to its end and the valve member.
  • an annular coolant channel is included, the coolant is supplied, the z. B. is discharged radially thereto.
  • the housing includes a cavity in which a spring surrounding the actuating shaft of the valve member is arranged.
  • the cooling channel is due to this arrangement far from the valve member and valve seat and can cause effective cooling for this, not even for the control shaft of the valve member and their storage in the housing, which is provided at an axial distance from the cooling channel.
  • the invention has for its object to provide a device for recycling the exhaust gas of an internal combustion engine of the type mentioned, which can be easily and inexpensively manufactured.
  • the coolant channel is formed and limited by two components formed transversely to the channel profile, the coolant channel can be realized easily and inexpensively, wherein z. B. one of the components, preferably z. B. the valve housing, can be inexpensively manufactured as a die-cast part.
  • all parts that relate to the coolant channel and also the coolant supply and coolant discharge, diecasting and shape so that they all in the shaping of this one component, eg. B. the valve housing, are formed with the same.
  • a device 10 which serves for the return of the exhaust gas of an internal combustion engine, not shown, and hereinafter also referred to as exhaust gas recirculation valve.
  • This has a valve housing 11, in which an exhaust valve 12 is arranged, which controls the passage of exhaust gas through the valve housing 11.
  • the exhaust valve 12 has a valve plate 13 at the lower end of a valve stem 14, on which a drive device 15, not shown in detail, for actuating the valve disk 13 in the direction of the longitudinal central axis of the valve stem 14 in the open position, ie downwards, or in the closed position, ie upwards, attacks.
  • the exhaust valve 12 is a lift valve.
  • the exhaust valve 12 is formed differently, for. B. as a slide valve, and here z. B. as a rotary valve, od. Like .. Any other type of valve comes as exhaust valve 12 just as well into consideration.
  • the valve housing 11 contains, above the valve seat ring 16, a valve chamber 18 which is connected to an outlet 19, via which the exhaust gas entering the valve chamber 18 exits in the direction of the arrow 20 when the exhaust valve 12 is open and is forwarded from there in the usual way.
  • the feeder the exhaust gas to be controlled by means of the exhaust valve 12 takes place in the drawings from below in the direction of arrow 21 z. B. by a housing 22 which may be formed as a hollow body.
  • the housing 22 receives the top of the valve housing 11 with exhaust valve 12, wherein the valve housing 11 and the housing 22 are fixedly and tightly interconnected.
  • the outlet 19 for the exhaust gas continues into the housing 22.
  • the device 10 further includes a cooling of the valve housing 11 serving circumferential coolant passage 30 in the interior, through which a coolant, for. B. the cooling water of the cooling circuit of the internal combustion engine, is hin manleitbar.
  • a coolant for. B. the cooling water of the cooling circuit of the internal combustion engine
  • hin mitleitbar In known exhaust gas recirculation valves, which are provided with an inner coolant channel, this channel is formed as a ring around closed annular recess in the interior of the valve housing 11. This can only be achieved with comparatively high production costs for the valve housing and otherwise expensive and costly.
  • the coolant channel 30 is instead by two transverse to the course of the coolant channel 30, ie in Fig. 1 and 2 formed in the vertical direction, composite components and limited, of which at least one component, the z. B.
  • valve housing 11 on a axial side 31 has a recessed and to this axial side 31 out open channel channel 32 as part of the coolant channel 30.
  • the other component in the embodiment shown z. B. is formed from the housing 22 is attached with an associated axial surface 33 to the open channel groove 32 containing axial side 31 of a component in the form of the valve housing 11 with completion and closure of the coolant channel 30.
  • This axial surface 33 of the other component which here from the housing 22, z. B. in the form of a hollow body, is planar in the embodiment shown and thus able to complete the channel groove 32 at the bottom of the axial side 31.
  • the axial surface 33 is provided with a recessed and open to this axial surface 33 channel channel, the assembly of the valve housing 11th and the housing 22 such that the axial side 31 bears against the axial surface 33, the upper channel channel 32 completes to form the coolant channel 30.
  • a seal 34 is arranged, for.
  • a metal bead seal or another, suitable sealing ring is arranged, for.
  • the one component which here consists of the valve housing 11, may contain a drain channel 35 and / or inflow channel 36 which is connected to the coolant channel 30, at least one of which is contained in a nozzle, as is provided here for the drainage channel 35.
  • the other component which is formed here from the housing 22, can have an inlet channel 37 and / or outlet channel communicating with the coolant channel 30, eg an inner channel leading to the channel channel 32.
  • the housing 22 includes only an inner inflow channel 37 which extends approximately parallel to the axis in the housing shell and opens into the inflow channel 36 of the valve housing 11.
  • the open channel groove 32 is open to the side of the valve housing 11, which faces the valve member in the form of the valve plate 13 and the drive device 15 is remote, ie in Fig. 1 and 2 downward.
  • This channel groove 32 is in the assembly by the axial surface 33 of the other component, the here from the housing 22, z. B. hollow body, is formed, closed.
  • This housing 22 includes a cylindrical interior 23 in which engages a correspondingly sized coaxial portion of the valve housing 11 which is sealed therein.
  • This housing 22, z. B. in the form of a hollow body is advantageously part of a cooling device, in particular a cooler, which serves for the cooling of the supplied exhaust gas.
  • At least one component, in particular here the valve housing 11, is formed from a die-cast part. This has the advantage that here the Channel channel 32, the inflow channel 36, the discharge channel 35 with nozzle and the remaining areas of the exhaust valve 12 can be formed inexpensively and in a molding process.
  • the open channel groove 32 of the valve housing 11 is open to the side of the valve housing 11, which faces away from the valve plate 13 and the drive means 15 faces.
  • the channel groove 32 in the illustration according to Fig. 1 and 2 open at the top.
  • the coolant channel 30 completing and closing component may be formed from a top-mounted lid.
  • downwardly open channel groove 32 may be the coolant passage 30 completing and closing component instead of the housing 22 from a bottom side attached to the axial side 31 lid may be formed.
  • the coolant channel 30 containing the cooling device is an integral part of the exhaust gas recirculation valve and formed in a particularly cost effective and simple manner in the design of the valve housing 11 with the same. This has a particularly advantageous in the production of the valve housing 11 as a die-cast z. As of metal or plastic, from.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Details Of Valves (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Rückführung des Abgases einer Brennkraftmaschine mit den Merkmalen im Oberbegriff des Anspruchs 1.The invention relates to a device for recirculating the exhaust gas of an internal combustion engine with the features in the preamble of claim 1.

Es ist eine Vorrichtung dieser Art bekannt ( DE 199 20 520 A1 ), bei der das an einem Ende eine Antriebseinrichtung aufnehmende und am anderen Ende das Abgasventil enthaltende, einstückig durchgehende Ventilgehäuse einen inneren ringförmigen Kühlmittelkanal enthält, durch den ein Kühlmittel hindurchleitbar ist, das z. B. vom Kühlmittelkreislauf der Brennkraftmaschine abgezweigt wird. Dadurch kann das Ventilgehäuse gekühlt werden, wobei über diese Kühlung des Ventilgehäuses auch angrenzende Bestandteile des Abgasventils gekühlt werden können, z. B. der das Ventilglied betätigende Ventilschaft. Durch die Kühlung in diesem Bereich wird außerdem die dort vom zu steuernden Abgas eingetragene Wärme von der Antriebseinrichtung ferngehalten. Die Ausbildung des ringförmigen inneren Kühlmittelkanals im Ventilgehäuse ist allerdings mit vergleichsweise hohen Herstellkosten verbunden. So kann z. B. bei dessen Herstellung aus Druckguss der Kühlmittelkanal nur durch entsprechende Nachbearbeitung, z. B. Bohren und Verschließen durch Stopfen, gebildet werden. Bei einer bekannten Abgasrückführungseinrichtung ( WO 97/44580 A ) ist das eigentliche Ventilgehäuse aus einem Rohrteil mit radialem Flanschteil gebildet, wobei der Rohrteil den Ventilsitz enthält, der von einem ebenfalls rohrförmigen, am Ende zu einem Ventilkopf aufgeweiteten Ventilkörper beherrscht wird. Das rohrförmige Ventilgehäuse ist in einen Zylinderraum eines Gehäuses eingesetzt und im Bereich des Flansches mit diesem Gehäuse verbunden. Dieses Gehäuse weist einen Einlaß sowie Auslaß für Abgas auf und einen ringförmigen Kühlmittelkanal, dem über einen Einlaß zur Kühlung Kühlmittel zugeführt wird, das über einen Auslaß abgeführt wird. Auf diese Weise soll das Abgas, das in einem weiter innen befindlichen Raum zwischen dem Gehäuse und dem Ventilgehäuserohr geführt wird, gekühlt werden. Der im Gehäuse enthaltene Kühlmittelkanal ist von dem Flansch des Ventilgehäuses abgedeckt und verschlossen. Nachteilig ist hierbei, dass das eigentliche, rohrförmige Ventilgehäuse mit dem Betätigungsschaft des Ventilgliedes und dessen Lagerung und Führung keine oder eine nur unzulängliche Kühlung erfährt.A device of this type is known ( DE 199 20 520 A1 ), in which at one end a drive device receiving and at the other end containing the exhaust valve, integrally continuous valve housing includes an inner annular coolant passage through which a coolant is hindurchleitbar, z. B. is diverted from the coolant circuit of the internal combustion engine. As a result, the valve housing can be cooled, whereby adjacent components of the exhaust valve can be cooled via this cooling of the valve housing, for. B. the valve member actuating valve stem. Due to the cooling in this area, the heat introduced there by the exhaust gas to be controlled is also kept away from the drive device. However, the formation of the annular inner coolant channel in the valve housing is associated with comparatively high production costs. So z. B. in its production of die-cast the coolant channel only by appropriate post, z. B. drilling and closing by plug, are formed. In a known exhaust gas recirculation device ( WO 97/44580 A ), the actual valve housing is formed from a tube part with a radial flange part, wherein the tube part contains the valve seat, which is dominated by a likewise tubular, widened at the end to a valve head valve body. The tubular valve housing is inserted into a cylinder space of a housing and connected in the region of the flange with this housing. This housing has an inlet and outlet for exhaust gas and an annular coolant channel, which is supplied via an inlet for cooling coolant, which is discharged via an outlet. In this way, the exhaust gas, which is guided in a further interior space between the housing and the Ventilgehäuserohr to be cooled. The coolant channel contained in the housing is covered by the flange of the valve housing and closed. The disadvantage here is that the actual, tubular valve housing with the operating shaft of the valve member and its storage and management undergoes no or only inadequate cooling.

Aus der älteren, jedoch nicht vorveröffentlichten EP 1338785 A2 ist ein Abgasrückführventil bekannt, dessen drehbetätigbares Ventilglied mit Ventilsitz am unteren Ende eines Gehäuses angeordnet sind, an dessen dem Ventilsitz gegenüberliegendem Ende eine Antriebseinrichtung für das Ventilglied angeordnet ist. Zur Drehbetätigung des Ventilgliedes dient eine Welle, die ausgehend von der Antriebseinrichtung durch das Gehäuse bis zu dessen Ende und dem Ventilglied geführt ist. Im Gehäuse, nahe der Antriebseinrichtung, ist ein ringförmiger Kühlmittelkanal enthalten, dem Kühlmittel zugeführt wird, das z. B. radial dazu abgeführt wird. Auf axialer Höhe des Kühlmittelkanals enthält das Gehäuse einen Hohlraum, in dem eine die Stellwelle des Ventilgliedes umgebende Feder angeordnet ist. Der Kühlkanal ist aufgrund dieser Anordnung fern vom Ventilglied und Ventilsitz und kann für diese keine wirksame Kühlung bewirken, auch nicht für die Stellwelle des Ventilgliedes und deren Lagerung im Gehäuse, die in axialem Abstand vom Kühlkanal vorgesehen ist.From the older, but not pre-published EP 1338785 A2 an exhaust gas recirculation valve is known, the drehbetätigbares valve member are arranged with valve seat at the lower end of a housing, at the valve seat opposite end of a drive means for the valve member is arranged. For rotary actuation of the valve member is a shaft which is guided, starting from the drive means through the housing to its end and the valve member. In the housing, near the drive means, an annular coolant channel is included, the coolant is supplied, the z. B. is discharged radially thereto. At the axial height of the coolant channel, the housing includes a cavity in which a spring surrounding the actuating shaft of the valve member is arranged. The cooling channel is due to this arrangement far from the valve member and valve seat and can cause effective cooling for this, not even for the control shaft of the valve member and their storage in the housing, which is provided at an axial distance from the cooling channel.

In der US 6173701 B1 ist eine Anordnung beschrieben, die aus einem eigenständigen Abgasrückführventil, ferner einem aus Kunststoff bestehenden Gehäuseverteiler und aus einem zwischen beiden angeordneten besonderen Kühlgehäuse gebildet ist, das aus zwei Bauteilen zusammengesetzt ist und einen ringförmigen Kühlmittelkanal enthält, der über einen Einlaß und Auslaß mit Kühlwasser gespeist wird. Die zwischengesetzte Kühleinrichtung soll das vom Abgasrückführventil herkommende Abgas kühlen, bevor dieses in den aus Kunststoff bestehenden anschließenden Verteiler gelangt.In the US 6173701 B1 an arrangement is described, which is composed of a separate exhaust gas recirculation valve, further consisting of a plastic housing manifold and a disposed between two special cooling housing, which is composed of two components and includes an annular coolant channel, which is fed via an inlet and outlet with cooling water , The interposed cooling device is intended to cool the exhaust gas coming from the exhaust gas recirculation valve before it passes into the adjoining plastic manifold.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Rückführung des Abgases einer Brennkraftmaschine der eingangs genannten Art zu schaffen, die einfach und kostengünstig hergestellt werden kann.The invention has for its object to provide a device for recycling the exhaust gas of an internal combustion engine of the type mentioned, which can be easily and inexpensively manufactured.

Die Aufgabe ist bei einer Vorrichtung der eingangs genannten Art gemäß der Erfindung durch die Merkmale im Anspruch 1 gelöst. Weitere vorteilhafte Erfindungsmerkmale und Ausgestaltungen ergeben sich aus den Unteransprüchen. Dadurch, dass der Kühlmittelkanal durch zwei quer zum Kanalverlauf zusammengesetzte Bauteile gebildet und begrenzt ist, lässt sich der Kühlmittelkanal einfach und kostengünstig verwirklichen, wobei z. B. eines der Bauteile, vorzugsweise z. B. das Ventilgehäuse, kostengünstig als Druckgussteil hergestellt werden kann. Hierbei lassen sich alle Teile, die den Kühlmittelkanal und auch die Kühlmittelzufuhr und Kühlmittelabfuhr betreffen, druckgussgerecht und so gestalten, dass diese alle bei der Formgebung dieses einen Bauteils, z. B. des Ventilgehäuses, gleich mit geformt werden.The object is achieved in a device of the type mentioned according to the invention by the features in claim 1. Further advantageous features of the invention and embodiments will become apparent from the dependent claims. The fact that the coolant channel is formed and limited by two components formed transversely to the channel profile, the coolant channel can be realized easily and inexpensively, wherein z. B. one of the components, preferably z. B. the valve housing, can be inexpensively manufactured as a die-cast part. In this case, all parts that relate to the coolant channel and also the coolant supply and coolant discharge, diecasting and shape so that they all in the shaping of this one component, eg. B. the valve housing, are formed with the same.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung.Further details and advantages of the invention will become apparent from the following description.

Der vollständige Wortlaut der Ansprüche ist vorstehend allein zur Vermeidung unnötiger Wiederholungen nicht wiedergegeben, sondern statt dessen lediglich durch Hinweis auf die Ansprüche darauf Bezug genommen, wodurch jedoch alle diese Anspruchsmerkmale als an dieser Stelle ausdrücklich und erfindungswesentlich offenbart zu gelten haben. Dabei sind alle in der vorstehenden und folgenden Beschreibung erwähnten Merkmale sowie auch die allein aus den Zeichnungen entnehmbaren Merkmale weitere Bestandteile der Erfindung, auch wenn sie nicht besonders hervorgehoben und insbesondere nicht in den Ansprüchen erwähnt sind.The full text of the claims is not reproduced above solely to avoid unnecessary repetition, but instead referred to merely by reference to the claims on it, which, however, all of these claim characteristics have to be considered as explicit and essential to the invention at this point. Here are all mentioned in the preceding and following description features as well as the removable only from the drawings features further components of the invention, even if they are not particularly highlighted and in particular not mentioned in the claims.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen gezeigten Ausführungsbeispieles näher erläutert. Es zeigen:

Fig. 1
einen schematischen senkrechten Schnitt eines Teils eines Abgasrückführventiles,
Fig. 2
einen schematischen senkrechten Schnitt des Abgasrückrückführventiles in Fig. 1 in einer demgegenüber anderen Schnittebene.
The invention is explained in more detail with reference to an embodiment shown in the drawings. Show it:
Fig. 1
a schematic vertical section of a part of an exhaust gas recirculation valve,
Fig. 2
a schematic vertical section of the exhaust gas recirculation valve in Fig. 1 in a contrast to other sectional plane.

In Fig. 1 und 2 ist eine Vorrichtung 10 gezeigt, die zur Rückführung des Abgases einer nicht gezeigten Brennkraftmaschine dient und nachfolgend auch als Abgasrückführventil bezeichnet ist. Dieses weist ein Ventilgehäuse 11 auf, in dem ein Abgasventil 12 angeordnet ist, das den Durchlass von Abgas durch das Ventilgehäuse 11 steuert. Das Abgasventil 12 weist einen'Ventilteller 13 am unteren Ende eines Ventilschaftes 14 auf, an dem eine im Detail nicht weiter gezeigte Antriebseinrichtung 15 zur Betätigung des Ventiltellers 13 in Richtung der Längsmittelachse des Ventilschaftes 14 in Öffnungsstellung, d. h. nach unten, bzw. in Schließstellung, d. h. nach oben, angreift. Am unteren Ende des Ventilgehäuses 11 ist in dieses ein Ventilsitzring 16 eingesetzt, der eine Ventilsitzfläche 17 aufweist, an der der Ventilteller 13 in der Schließstellung mit einer zugeordneten tellerseitigen Fläche anliegt. In dieser Gestaltung stellt das Abgasventil 12 ein Hubventil dar. Bei einem anderen, nicht gezeigten Ausführungsbeispiel ist das Abgasventil 12 anders ausgebildet, z. B. als Schieberventil, und hierbei z. B. als Drehschieberventil, od. dgl.. Jede andere Ventilart kommt als Abgasventil 12 genauso gut in Betracht.In Fig. 1 and 2 a device 10 is shown, which serves for the return of the exhaust gas of an internal combustion engine, not shown, and hereinafter also referred to as exhaust gas recirculation valve. This has a valve housing 11, in which an exhaust valve 12 is arranged, which controls the passage of exhaust gas through the valve housing 11. The exhaust valve 12 has a valve plate 13 at the lower end of a valve stem 14, on which a drive device 15, not shown in detail, for actuating the valve disk 13 in the direction of the longitudinal central axis of the valve stem 14 in the open position, ie downwards, or in the closed position, ie upwards, attacks. At the lower end of the valve housing 11 in this a valve seat ring 16 is inserted, which has a valve seat surface 17 on which the valve plate 13 rests in the closed position with an associated plate-side surface. In this configuration, the exhaust valve 12 is a lift valve. In another, not shown embodiment, the exhaust valve 12 is formed differently, for. B. as a slide valve, and here z. B. as a rotary valve, od. Like .. Any other type of valve comes as exhaust valve 12 just as well into consideration.

Das Ventilgehäuse 11 enthält oberhalb des Ventilsitzringes 16 einen Ventilraum 18, der mit einem Auslass 19 in Verbindung steht, über den bei geöffnetem Abgasventil 12 das in den Ventilraum 18 hineingelangende Abgas in Pfeilrichtung 20 austritt und von dort aus in üblicher Weise weitergeleitet wird. Die Zuführung des mittels des Abgasventils 12 zu steuernden Abgases erfolgt in den Zeichnungen von unten her in Pfeilrichtung 21 z. B. durch ein Gehäuse 22, das als Hohlkörper ausgebildet sein kann. Das Gehäuse 22 nimmt oben das Ventilgehäuse 11 mit Abgasventil 12 auf, wobei das Ventilgehäuse 11 und das Gehäuse 22 fest und dicht miteinander verbunden sind. Der Auslass 19 für das Abgas setzt sich bis in das Gehäuse 22 fort.The valve housing 11 contains, above the valve seat ring 16, a valve chamber 18 which is connected to an outlet 19, via which the exhaust gas entering the valve chamber 18 exits in the direction of the arrow 20 when the exhaust valve 12 is open and is forwarded from there in the usual way. The feeder the exhaust gas to be controlled by means of the exhaust valve 12 takes place in the drawings from below in the direction of arrow 21 z. B. by a housing 22 which may be formed as a hollow body. The housing 22 receives the top of the valve housing 11 with exhaust valve 12, wherein the valve housing 11 and the housing 22 are fixedly and tightly interconnected. The outlet 19 for the exhaust gas continues into the housing 22.

Die Vorrichtung 10 weist ferner einen der Kühlung des Ventilgehäuses 11 dienenden umlaufenden Kühlmittelkanal 30 im Inneren auf, durch den ein Kühlmittel, z. B. das Kühlwasser des Kühlkreislaufs der Brennkraftmaschine, hindurchleitbar ist. Bei bekannten Abgasrückführventilen, die mit einem inneren Kühlmittelkanal versehen sind, ist dieser Kanal als ringsum geschlossene Ringaussparung im Inneren des Ventilgehäuses 11 ausgebildet. Dies ist nur unter vergleichsweise hohen Herstellkosten für das Ventilgehäüse erreichbar und im übrigen aufwendig und kostenträchtig. Bei der Vorrichtung 10 gemäß der Erfindung ist der Kühlmittelkanal 30 statt dessen durch zwei quer zum Verlauf des Kühlmittelkanals 30, d. h. in Fig. 1 und 2 in vertikaler Richtung, zusammengesetzte Bauteile gebildet und begrenzt, von denen zumindest ein Bauteil, der hier z. B. aus dem Ventilgehäuse 11 besteht, auf einer Axialseite 31 eine eingetiefte und zu dieser Axialseite 31 hin offene Kanalrinne 32 als Teil des Kühlmittelkanals 30 aufweist. Der andere Bauteil, der beim gezeigten Ausführungsbeispiel z. B. aus dem Gehäuse 22 gebildet ist, ist mit einer zugeordneten Axialfläche 33 an die die offene Kanalrinne 32 enthaltende Axialseite 31 des einen Bauteils in Form des Ventilgehäuses 11 unter Komplettierung und Schließung des Kühlmittelkanals 30 angesetzt. Diese Axialfläche 33 des anderen Bauteils, das hier aus dem Gehäuse 22, z. B. in Form eines Hohlkörpers, gebildet ist, ist beim gezeigten Ausführungsbeispiel ebenflächig und vermag somit die Kanalrinne 32 unten auf Höhe der Axialseite 31 abzuschließen. Bei einem anderen, nicht gezeigten Ausführungsbeispiel ist auch die Axialfläche 33 mit einer eingetieften und zu dieser Axialfläche 33 offenen Kanalrinne versehen, die beim Zusammensetzen des Ventilgehäuses 11 und des Gehäuses 22 derart, dass die Axialseite 31 an der Axialfläche 33 anliegt, die obere Kanalrinne 32 zur Bildung des Kühlmittelkanals 30 komplettiert.The device 10 further includes a cooling of the valve housing 11 serving circumferential coolant passage 30 in the interior, through which a coolant, for. B. the cooling water of the cooling circuit of the internal combustion engine, is hindurchleitbar. In known exhaust gas recirculation valves, which are provided with an inner coolant channel, this channel is formed as a ring around closed annular recess in the interior of the valve housing 11. This can only be achieved with comparatively high production costs for the valve housing and otherwise expensive and costly. In the device 10 according to the invention, the coolant channel 30 is instead by two transverse to the course of the coolant channel 30, ie in Fig. 1 and 2 formed in the vertical direction, composite components and limited, of which at least one component, the z. B. consists of the valve housing 11, on a axial side 31 has a recessed and to this axial side 31 out open channel channel 32 as part of the coolant channel 30. The other component, in the embodiment shown z. B. is formed from the housing 22 is attached with an associated axial surface 33 to the open channel groove 32 containing axial side 31 of a component in the form of the valve housing 11 with completion and closure of the coolant channel 30. This axial surface 33 of the other component, which here from the housing 22, z. B. in the form of a hollow body, is planar in the embodiment shown and thus able to complete the channel groove 32 at the bottom of the axial side 31. In another, not shown embodiment, the axial surface 33 is provided with a recessed and open to this axial surface 33 channel channel, the assembly of the valve housing 11th and the housing 22 such that the axial side 31 bears against the axial surface 33, the upper channel channel 32 completes to form the coolant channel 30.

Zwischen beiden Bauteilen, hier also dem Ventilgehäuse 11 einerseits und dem Gehäuse 22 andererseits, und daher zwischen der Axialseite 31 und der Axialfläche 33, ist eine Dichtung 34 angeordnet, z. B. eine Elastomerdichtung, eine Metallsickendichtung oder ein anderer, geeigneter Dichtungsring.Between two components, in this case the valve housing 11 on the one hand and the housing 22 on the other hand, and therefore between the axial side 31 and the axial surface 33, a seal 34 is arranged, for. As an elastomeric seal, a metal bead seal or another, suitable sealing ring.

Der eine Bauteil, der hier aus dem Ventilgehäuse 11 besteht, kann einen mit dem Kühlmittelkanal 30 in Verbindung stehenden Abflusskanal 35 und/oder Zuflusskanal 36 enthalten, von denen zumindest einer in einem Stutzen enthalten ist, wie dies hier für den Abflusskanal 35 vorgesehen ist. Der andere Bauteil, der hier aus dem Gehäuse 22 gebildet ist, kann einen mit dem Kühlmittelkanal 30 in Verbindung stehenden Zuflusskanal 37 und/oder Abflusskanal, z: B. einen inneren, bis zur Kanalrinne 32 führenden Kanal aufweisen. Beim gezeigten Ausführungsbeispiel enthält das Gehäuse 22 lediglich einen inneren Zuflusskanal 37, der im Gehäusemantel etwa achsparallel verläuft und in den Zuflusskanal 36 des Ventilgehäuses 11 mündet.The one component, which here consists of the valve housing 11, may contain a drain channel 35 and / or inflow channel 36 which is connected to the coolant channel 30, at least one of which is contained in a nozzle, as is provided here for the drainage channel 35. The other component, which is formed here from the housing 22, can have an inlet channel 37 and / or outlet channel communicating with the coolant channel 30, eg an inner channel leading to the channel channel 32. In the illustrated embodiment, the housing 22 includes only an inner inflow channel 37 which extends approximately parallel to the axis in the housing shell and opens into the inflow channel 36 of the valve housing 11.

Vor dem Zusammenbau der Vorrichtung 10 ist die offene Kanalrinne 32 zu der Seite des Ventilgehäuses 11 offen, die dem Ventilglied in Form des Ventiltellers 13 zugewandt und der Antriebseinrichtung 15 abgewandt ist, d. h. in Fig. 1 und 2 nach unten. Diese Kanalrinne 32 wird beim Zusammenbau durch die Axialfläche 33 des anderen Bauteils, der hier aus dem Gehäuse 22, z. B. Hohlkörper, gebildet ist, geschlossen. Dieses Gehäuse 22 enthält einen zylindrischen Innenraum 23, in den ein entsprechend bemessener koaxialer Abschnitt des Ventilgehäuses 11 eingreift, der darin dicht aufgenommen ist. Dieses Gehäuse 22, z. B. in Form eines Hohlkörpers, ist in vorteilhafter Weise Teil einer Kühleinrichtung, insbesondere eines Kühlers, der der Abkühlung des zugeführten Abgases dient. Mindestens ein Bauteil, insbesondere hier das Ventilgehäuse 11, ist aus einem Druckgussteil gebildet. Dies hat den Vorteil, dass hierbei die Kanalrinne 32, der Zuflusskanal 36, der Abflusskanal 35 mit Stutzen und die übrigen Bereiche des Abgasventils 12 kostengünstig und in einem Formgebungsprozess gebildet werden können.Before assembly of the device 10, the open channel groove 32 is open to the side of the valve housing 11, which faces the valve member in the form of the valve plate 13 and the drive device 15 is remote, ie in Fig. 1 and 2 downward. This channel groove 32 is in the assembly by the axial surface 33 of the other component, the here from the housing 22, z. B. hollow body, is formed, closed. This housing 22 includes a cylindrical interior 23 in which engages a correspondingly sized coaxial portion of the valve housing 11 which is sealed therein. This housing 22, z. B. in the form of a hollow body, is advantageously part of a cooling device, in particular a cooler, which serves for the cooling of the supplied exhaust gas. At least one component, in particular here the valve housing 11, is formed from a die-cast part. This has the advantage that here the Channel channel 32, the inflow channel 36, the discharge channel 35 with nozzle and the remaining areas of the exhaust valve 12 can be formed inexpensively and in a molding process.

Es versteht sich, dass für die Zu- und Ableitung des Kühlmittels, z. B. Kühlwassers, in Abweichung von der gezeigten Ausgestaltung auch zwei am Ventilgehäuse 11 einstückig ausgebildete Stutzen oder integrierte Kanäle, an die Stutzen angeschlossen sind, vorgesehen sein können. Statt dessen können auch beim anderen Bauteil in Form des Gehäuses 22 zwei angegossene Stutzen oder zwei integrierte Kanäle für die Zufuhr und Abfuhr des Kühlmittels vorgesehen sein.It is understood that for the supply and discharge of the coolant, for. As cooling water, in deviation from the embodiment shown, two on the valve housing 11 integrally formed nozzle or integrated channels are connected to the nozzle, can be provided. Instead, two cast-on nozzles or two integrated channels for the supply and removal of the coolant can also be provided in the other component in the form of the housing 22.

Bei einem anderen, nicht gezeigten Ausführungsbeispiel ist die offene Kanalrinne 32 des Ventilgehäuses 11 zu der Seite des Ventilgehäuses 11 offen, die dem Ventilteller 13 abgewandt und der Antriebseinrichtung 15 zugewandt ist. In diesem Fall ist somit die Kanalrinne 32 bei der Darstellung gemäß Fig. 1 und 2 nach oben hin offen. Hierbei kann der andere, den Kühlmittelkanal 30 komplettierende und schließende Bauteil aus einem oberseitig aufgesetzten Deckel gebildet sein. Auch beim gezeigten Ausführungsbeispiel mit in Fig. 1 und 2 nach unten offener Kanalrinne 32 kann der den Kühlmittelkanal 30 komplettierende und schließende Bauteil anstelle des Gehäuses 22 aus einem unterseitig auf die Axialseite 31 aufgesetzten Deckel gebildet sein.In another, not shown embodiment, the open channel groove 32 of the valve housing 11 is open to the side of the valve housing 11, which faces away from the valve plate 13 and the drive means 15 faces. In this case, thus, the channel groove 32 in the illustration according to Fig. 1 and 2 open at the top. Here, the other, the coolant channel 30 completing and closing component may be formed from a top-mounted lid. Also in the embodiment shown with in Fig. 1 and 2 downwardly open channel groove 32 may be the coolant passage 30 completing and closing component instead of the housing 22 from a bottom side attached to the axial side 31 lid may be formed.

Bei der Vorrichtung 10 gemäß der Erfindung ist die den Kühlmittelkanal 30 enthaltende Kühleinrichtung integrierter Bestandteil des Abgasrückführventils und in besonders kostengünstiger und einfacher Weise bei der Gestaltung des Ventilgehäuses 11 gleich mit gebildet. Dies wirkt sich besonders vorteilhaft bei der Herstellung des Ventilgehäuses 11 als Druckgussteil z. B. aus Metall oder auch aus Kunststoff, aus.In the device 10 according to the invention, the coolant channel 30 containing the cooling device is an integral part of the exhaust gas recirculation valve and formed in a particularly cost effective and simple manner in the design of the valve housing 11 with the same. This has a particularly advantageous in the production of the valve housing 11 as a die-cast z. As of metal or plastic, from.

Claims (6)

  1. A device for recirculating the exhaust gas of an internal combustion engine, comprising an exhaust gas valve (12) arranged in a valve housing (11) and controlling the passage of exhaust gas, comprising a drive arrangement (15), and comprising at least one peripheral coolant channel (30), which is used to cool the valve housing (11) and through which a coolant can be conveyed, wherein the coolant channel (30) is formed and delimited by two components assembled together transversely to the course of the channel, of which one component has, on an axial side, a sunken channel furrow, which is open to this axial side, as part of the coolant channel (30), and the other component is fitted via an axial surface (33) on the axial side (31) of the first-mentioned component, said axial side containing the open channel furrow (32), thus completing and closing the coolant channel,
    characterised in that
    the component having the channel furrow (32) on an axial side (31) consists of the valve housing (11), and the channel furrow (32) is open to the side of the valve housing (11) that faces towards the valve member (13) and away from the drive arrangement (15) for the valve member (13), in that the other component completing and closing the coolant channel (30) is formed from a housing (22), and in that the housing (22) contains an inner inflow channel (37), which runs axially parallel in the housing sleeve and leads into the inflow channel (36) of the valve housing (11).
  2. The device according to claim 1,
    characterised in that
    the axial surface (33) of the housing (22) is planar.
  3. The device according to Claim 1 or 2,
    characterised in that
    a seal (34) is arranged between the valve housing (11) and the housing (22), for example an elastomer seal, a metal bead seal or similar seal ring.
  4. The device according to one of Claims 1 to 3,
    characterised in that
    the valve housing (11) contains a drainage channel (35) and/or inflow channel (36) connected to the coolant channel (30), for example in a connecting piece.
  5. The device according to one of Claims 1 to 4,
    characterised in that
    the housing (22) is formed from a hollow body receiving the valve housing (11) with exhaust gas valve (12).
  6. The device according to one of Claims 1 to 5,
    characterised in that
    the valve housing (11) is formed from a pressure die-cast part.
EP20030005203 2002-04-20 2003-03-08 Exhaust gas recirculation device for an internal combustion engine Expired - Fee Related EP1355057B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10217626 2002-04-20
DE10217626A DE10217626A1 (en) 2002-04-20 2002-04-20 Device for recycling the exhaust gas of an internal combustion engine

Publications (3)

Publication Number Publication Date
EP1355057A2 EP1355057A2 (en) 2003-10-22
EP1355057A3 EP1355057A3 (en) 2005-11-16
EP1355057B1 true EP1355057B1 (en) 2015-05-20

Family

ID=28458938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030005203 Expired - Fee Related EP1355057B1 (en) 2002-04-20 2003-03-08 Exhaust gas recirculation device for an internal combustion engine

Country Status (2)

Country Link
EP (1) EP1355057B1 (en)
DE (1) DE10217626A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0419060D0 (en) * 2004-08-27 2004-09-29 Delphi Tech Inc Valve actuating mechanism
BRPI0708154A2 (en) * 2006-02-24 2011-05-17 Behr Gmbh & Co Kg valve for regulating an exhaust gas flow from an internal combustion engine, heat exchanger for cooling exhaust gas, system having at least one valve and at least one heat exchanger
DE102006045584A1 (en) * 2006-09-27 2008-05-15 Elringklinger Ag sealing system
ES2304092B1 (en) * 2006-11-17 2009-07-03 Valeo Termico S.A. HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE.
WO2009141945A1 (en) * 2008-05-19 2009-11-26 三菱電機株式会社 Device for mounting exhaust gas circulation valve of drop-in type
JP5236083B2 (en) * 2009-11-18 2013-07-17 三菱電機株式会社 Drop-in type exhaust gas recirculation valve and its mounting system
GB2481024B (en) * 2010-06-08 2015-12-16 Gm Global Tech Operations Inc Exhaust gas recirculation (EGR) valve assembly for an internal combustion engine
DE102010048865A1 (en) 2010-10-19 2012-04-19 Gustav Wahler Gmbh U. Co. Kg Exhaust gas recirculation valve
DE102011054091B4 (en) 2011-09-30 2018-08-16 Pierburg Gmbh Sealing arrangement for a valve disposed in a bore of an exhaust passage housing exhaust valve
FR3068103B1 (en) * 2017-06-27 2020-02-14 Valeo Systemes De Controle Moteur GAS FLOW REGULATION VALVE FOR ASSEMBLY OF A RECEPTACLE AND ASSEMBLY COMPRISING SUCH A VALVE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69729863T2 (en) * 1996-05-20 2005-08-25 Borgwarner Inc., Auburn Hills AUTOMATIC FLUID CONTROL SYSTEM WITH PRESSURE BALANCED ELECTROMAGNET VALVE
US5970960A (en) * 1996-09-18 1999-10-26 Nissan Motor Co., Ltd. Exhaust gas recirculation system of internal combustion engine
DE19744596A1 (en) * 1997-10-09 1999-04-15 Volkswagen Ag Exhaust gas recirculation valve
DE19920520C2 (en) 1999-05-05 2001-04-26 Daimler Chrysler Ag Device for recycling the exhaust gas of an internal combustion engine
DE10207922A1 (en) * 2002-02-23 2003-09-04 Daimler Chrysler Ag Control valve, in particular for an internal combustion engine, for the controlled return of exhaust gas

Also Published As

Publication number Publication date
DE10217626A1 (en) 2003-10-30
EP1355057A2 (en) 2003-10-22
EP1355057A3 (en) 2005-11-16

Similar Documents

Publication Publication Date Title
DE102016102756B4 (en) Control cylinder for a control valve and control valve with such a control cylinder
EP2175124B1 (en) Fuel injector for internal combustion engines
DE102005006880A1 (en) Disposable screw-on filter
DE102007030482A1 (en) Method for producing cooling channels in the cylinder head of an internal combustion engine
EP2342441B1 (en) Internal combustion engine piston with cooling channel said piston comprising a sealing element sealing the cooling channel
DE102006036843A1 (en) Fuel injection valve for a combustion engine, comprises a longitudinal housing, a valve seat, a high pressure chamber in the housing, and a control unit
EP1355057B1 (en) Exhaust gas recirculation device for an internal combustion engine
DE19703001C2 (en) Liquid cooled piston
DE102008034466A1 (en) Cylinder head assembly with valve cooling and lubrication
DE102008038324A1 (en) Cooling channel of a piston for an internal combustion engine
DE1961322A1 (en) Water-cooled cylinder head
EP3356666A1 (en) Two-part piston having an open cooling channel
DE3210209A1 (en) Fuel injection nozzle for internal combustion engines
EP1936141A2 (en) Valve for regulating a flowing medium
DE2816400A1 (en) VALVE BASKET WITH COOLING DUCTS FOR THE EXHAUST VALVES OF A DIESEL ENGINE
EP1120553A2 (en) Valve, especially a thermostatic valve
EP1044328B1 (en) Pump nozzle of a type with an open injection nozzle
DE4221921B4 (en) Fuel injection pump for internal combustion engines
DE202018106532U1 (en) Valve for controlling a flow of a fluid
DE4318462A1 (en) Cylinder head for a valve-controlled internal combustion engine
DE19634958C2 (en) Cylinder head cover
DE10251359B4 (en) Cylinder head of a multi-cylinder internal combustion engine
DE19953384C1 (en) Piston for i.c. engine has outer openings in piston shaft angled inwards in direction of combustion recess in piston top surface and communicating with inner cooling openings between piston shaft sections
EP3583310B1 (en) Fuel injector
WO2006079425A1 (en) Fuel injection device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

17P Request for examination filed

Effective date: 20060221

AKX Designation fees paid

Designated state(s): DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 20061220

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BORGWARNER ESSLINGEN GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150116

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 50315277

Country of ref document: DE

Ref country code: DE

Ref legal event code: R096

Ref document number: 50315277

Country of ref document: DE

Effective date: 20150702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150520

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 50315277

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150520

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160308

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20161130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160308

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150520

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210305

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50315277

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221001