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EP0908615A2 - Exhaust gas recirculation valve - Google Patents

Exhaust gas recirculation valve Download PDF

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Publication number
EP0908615A2
EP0908615A2 EP98119036A EP98119036A EP0908615A2 EP 0908615 A2 EP0908615 A2 EP 0908615A2 EP 98119036 A EP98119036 A EP 98119036A EP 98119036 A EP98119036 A EP 98119036A EP 0908615 A2 EP0908615 A2 EP 0908615A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
gas recirculation
recirculation valve
flange
duct
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
Application number
EP98119036A
Other languages
German (de)
French (fr)
Other versions
EP0908615A3 (en
EP0908615B1 (en
Inventor
Hans-Ulrich Dipl.-Ing. Jahrens
Günter Dipl.-Ing. Söhlke
Dietmar Dipl.-Ing. Lagies
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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
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Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP0908615A2 publication Critical patent/EP0908615A2/en
Publication of EP0908615A3 publication Critical patent/EP0908615A3/en
Application granted granted Critical
Publication of EP0908615B1 publication Critical patent/EP0908615B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to an exhaust gas recirculation valve according to the preamble of claim 1.
  • An exhaust gas recirculation valve is known from EP 0 763 655 A2, which devices for Has cooling of the recirculated exhaust gas. This measure is intended to undesirable increase in temperature of the intake air can be largely avoided.
  • exhaust gas recirculation valve are between the valve and the flange that with the intake port of the internal combustion engine is connected, cooling channels provided by the Coolant of the internal combustion engine are flowed through. By means of these cooling channels Although the exhaust gas recirculated from the valve to the intake duct is cooled, the valve is even burdened with the high exhaust gas temperature.
  • the invention has for its object to provide an exhaust gas recirculation valve To create cooling water of the internal combustion engine coolable flange module, in which the Cooling in the flange module provides thermal relief for the valve elements of the Exhaust gas recirculation valve causes.
  • a cooling channel encloses the flange module to the exhaust gas recirculation valve leading exhaust duct.
  • a preferred embodiment provides that the leading to the exhaust gas recirculation valve Exhaust duct runs in a partial area coaxial to the central axis of the exhaust gas recirculation valve and that this portion of the exhaust duct is surrounded by an annular cooling duct. In this way, an optimal temperature reduction of the exhaust gas recirculation valve exhaust gas can be achieved.
  • the flange module of the exhaust gas recirculation valve is for direct connection to the cylinder head of the internal combustion engine with a first Connection flange with inlet and outlet openings for the coolant of the cooling circuit and provided with an exhaust gas inlet opening, and has a second connection flange with a Exhaust outlet.
  • the two connecting flanges are preferably opposite one another formed on the flange module and run at different inclined acute angles to the central axis of the exhaust gas recirculation valve.
  • the exhaust gas recirculation valve can be directly on Cylinder head with the cooling circuit of the internal combustion engine and with an exhaust duct of the Connect the internal combustion engine.
  • the connection is made via the second connection flange to the intake duct of the internal combustion engine.
  • Figure 1 shows the exhaust gas recirculation valve 1 with flange module 2 according to the viewing direction R, which is shown in Figure 5 with an arrow. That as an electrical exhaust gas recirculation valve 1 trained valve is known per se. In connection with the flange module 2 this can be done Attach exhaust gas recirculation valve 1 directly to the cylinder head of an internal combustion engine.
  • This here visible first connection flange 3 has an inlet opening 4 and an outlet opening 5 for the Coolant.
  • it has an exhaust gas inlet opening 6, to which one can easily be attached angled arc extending recess 11 connects.
  • the connection to the cylinder for the entry of the exhaust gas is in area 7.
  • the opposite side of the flange module 2 can be seen in FIG. 2, specifically in Direction S of view of the second connecting flange 8 corresponding to that in FIG. 5 indicated arrow direction S.
  • the second connecting flange 8 has an exhaust gas outlet opening 9, via which a connection to the intake duct of the internal combustion engine is established.
  • the electrical connection 10 of the exhaust gas recirculation valve can also be seen in FIG.

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

Abstract

An exhaust gas recycling valve has a solenoid control to vary the proportion of gas recycled and is bolted directly to the cylinder head via a fitting flange (3). The flange has inlet and outlet ducts to connect to the engine coolant cycle and a gas inlet duct (6). A second flange on the other side of the valve connects to the exhaust manifold, while a second outlet connects the recycled flow to the inlet manifold. The coolant flow is ducted around the second outlet duct to cool the recycled gasses and to prevent the valve from overheating.

Description

Die Erfindung betrifft ein Abgasrückführventil nach dem Oberbegriff des Anspruchs 1.The invention relates to an exhaust gas recirculation valve according to the preamble of claim 1.

Zur Reduzierung des Schadstoffausstoßes bei Verbrennungsmotoren von Kraftfahrzeugen ist es bekannt, einen Teil des Abgases über ein Abgasrückführventil dem zu verbrennenden Kraftstoff-Luft-Gemisch wieder zuzuführen. Durch die Abgasrückführung erhalten die Zylinder des Verbrennungsmotors eine geringere Füllung mit Kraftstoff-Luft-Gemisch. Die zurückgeführten Abgasbestandteile können an der Verbrennung nicht mehr teilnehmen, so daß dadurch die Verbrennungstemperatur herabgesetzt wird. Dabei ist es wichtig, daß die Abgasrückführungsrate in Abhängigkeit vom jeweiligen Betriebszustand des Verbrennungsmotors genau dosiert wird, um die gewünschte Schadstoffreduzierung zu erhalten. Zu diesem Zweck werden elektrisch gesteuerte Abgasrückführventile verwendet, mit denen eine genaue Dosierung der Abgasrückführung möglich ist.To reduce pollutant emissions in internal combustion engines of motor vehicles it is known to burn part of the exhaust gas via an exhaust gas recirculation valve Feed the fuel-air mixture again. Through the exhaust gas recirculation, the Cylinder of the internal combustion engine has a lower fuel-air mixture filling. The returned exhaust gas components can no longer participate in the combustion, so by lowering the combustion temperature. It is important that the Exhaust gas recirculation rate depending on the respective operating state of the internal combustion engine is precisely dosed to obtain the desired pollutant reduction. To For this purpose, electrically controlled exhaust gas recirculation valves are used, with which one exact dosing of the exhaust gas recirculation is possible.

Aus der EP 0 763 655 A2 ist ein Abgasrückführventil bekannt, welches Einrichtungen zur Kühlung des rückgeführten Abgases aufweist. Durch diese Maßnahme soll eine unerwünschte Temperaturerhöhung der Ansaugluft weitgehend vermieden werden. Bei diesem bekannten Abgasrückführventil sind zwischen dem Ventil und dem Flansch, der mit dem Ansaugkanal des Verbrennungsmotors verbunden ist, Kühlkanäle vorgesehen, die vom Kühlmittel des Verbrennungsmotors durchströmt werden. Mittels dieser Kühlkanäle wird zwar das vom Ventil zum Ansaugkanal rückgeführte Abgas gekühlt, jedoch wird das Ventil selbst mit der hohen Abgastemperatur belastet.An exhaust gas recirculation valve is known from EP 0 763 655 A2, which devices for Has cooling of the recirculated exhaust gas. This measure is intended to undesirable increase in temperature of the intake air can be largely avoided. At this known exhaust gas recirculation valve are between the valve and the flange that with the intake port of the internal combustion engine is connected, cooling channels provided by the Coolant of the internal combustion engine are flowed through. By means of these cooling channels Although the exhaust gas recirculated from the valve to the intake duct is cooled, the valve is even burdened with the high exhaust gas temperature.

Der Erfindung liegt die Aufgabe zugrunde, ein Abgasrückführventil mit einem vom Kühlwasser des Verbrennungsmotors kühlbaren Flanschmodul zu schaffen, bei dem die Kühlung im Flanschmodul eine thermische Entlastung für die Ventilelemente des Abgasrückführventils bewirkt. The invention has for its object to provide an exhaust gas recirculation valve To create cooling water of the internal combustion engine coolable flange module, in which the Cooling in the flange module provides thermal relief for the valve elements of the Exhaust gas recirculation valve causes.

Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the features of claim 1.

Gemäß Anspruch 1 umschließt ein Kühlkanal den im Flanschmodul zum Abgasrückführventil führenden Abgaskanal. Durch die Kühlung des Abgases vor den Ventilelementen des Abgasrückführventils wird dieses vor einer hohen Temperaturbelastung geschützt und man erhält außerdem eine gute Kühlung des in den Ansaugkanal des Verbrennungsmotors rückgeführten Abgases, wodurch man eine thermische Entkopplung zwischen Abgas- und Ansaugkanal erhält.According to claim 1, a cooling channel encloses the flange module to the exhaust gas recirculation valve leading exhaust duct. By cooling the exhaust gas upstream of the valve elements Exhaust gas recirculation valve, this is protected from high temperature loads and one also maintains good cooling of the intake manifold of the internal combustion engine recirculated exhaust gas, which creates a thermal decoupling between exhaust gas and Intake duct receives.

Eine bevorzugte Ausführungsform sieht vor, daß der zum Abgasrückführventil führende Abgaskanal in einem Teilbereich koaxial zur Mittelachse des Abgasrückführventils verläuft und daß dieser Teilbereich des Abgaskanals von einem ringförmigen Kühlkanal umgeben ist. Auf diese Weise kann eine optimale Temperaturabsenkung des zum Abgasrückführventil gelangenden Abgases erzielt werden.A preferred embodiment provides that the leading to the exhaust gas recirculation valve Exhaust duct runs in a partial area coaxial to the central axis of the exhaust gas recirculation valve and that this portion of the exhaust duct is surrounded by an annular cooling duct. In this way, an optimal temperature reduction of the exhaust gas recirculation valve exhaust gas can be achieved.

Bei der bevorzugten Ausführungsform ist der Flanschmodul des Abgasrückführventils zum direkten Anschluß an den Zylinderkopf des Verbrennungsmotors mit einem ersten Anschlußflansch mit Ein- und Auslaßöffnungen für die Kühlflüssigkeit des Kühlkreislaufs und mit einer Abgaseinlaßöffnung versehen, und hat einen zweiten Anschlußflansch mit einer Abgasaustrittsöffnung. Die beiden Anschlußflansche sind vorzugsweise gegenüberliegend am Flanschmodul ausgebildet und verlaufen in unterschiedlich geneigten spitzen Winkeln zur Mittelachse des Abgasrückführventils.In the preferred embodiment, the flange module of the exhaust gas recirculation valve is for direct connection to the cylinder head of the internal combustion engine with a first Connection flange with inlet and outlet openings for the coolant of the cooling circuit and provided with an exhaust gas inlet opening, and has a second connection flange with a Exhaust outlet. The two connecting flanges are preferably opposite one another formed on the flange module and run at different inclined acute angles to the central axis of the exhaust gas recirculation valve.

Durch den derart ausgebildeten Flanschmodul läßt sich das Abgasrückführventil direkt am Zylinderkopf mit dem Kühlkreislauf des Verbrennungsmotors und mit einem Abgaskanal des Verbrennungsmotors verbinden. Über den zweiten Anschlußflansch erfolgt die Verbindung zum Ansaugkanal des Verbrennungsmotors.Due to the flange module designed in this way, the exhaust gas recirculation valve can be directly on Cylinder head with the cooling circuit of the internal combustion engine and with an exhaust duct of the Connect the internal combustion engine. The connection is made via the second connection flange to the intake duct of the internal combustion engine.

Anhand einer Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert.An exemplary embodiment of the invention is explained in more detail with reference to a drawing.

Es zeigen:

Fig. 1
eine perspektivische Seitenansicht des Abgasrückführventils mit Flanschmodul mit Draufsicht auf den ersten Anschlußflansch,
Fig. 2
eine perspektivische Seitenansicht des Abgasrückführventils mit Flanschmodul mit Draufsicht auf den zweiten Anschlußflansch,
Fig. 3
die Seitenansicht des Abgasrückführventils mit Flanschmodul mit Sicht auf den ersten Anschlußflansch,
Fig. 4
einen Querschnitt entlang der Schnittlinie C-C gemäß Figur 3,
Fig. 5
einen Längsschnitt entlang der Schnittlinie A-A gemäß Figur 4 und
Fig. 6
einen Längsschnitt entlang der Schnittlinie B-B gemäß Figur 4.
Show it:
Fig. 1
2 shows a perspective side view of the exhaust gas recirculation valve with a flange module with a top view of the first connecting flange,
Fig. 2
2 shows a perspective side view of the exhaust gas recirculation valve with a flange module with a top view of the second connection flange,
Fig. 3
the side view of the exhaust gas recirculation valve with flange module with a view of the first connection flange,
Fig. 4
3 shows a cross section along the section line CC according to FIG. 3,
Fig. 5
a longitudinal section along the section line AA according to Figure 4 and
Fig. 6
3 shows a longitudinal section along the section line BB according to FIG. 4.

Figur 1 zeigt das Abgasrückführventil 1 mit Flanschmodul 2 entsprechend der Blickrichtung R, die in Figur 5 mit einem Pfeil eingezeichnet ist. Das als elektrisches Abgasrückführventil 1 ausgebildete Ventil ist an sich bekannt. In Verbindung mit dem Flanschmodul 2 läßt sich das Abgasrückführventil 1 direkt am Zylinderkopf eines Verbrennungsmotors anbringen. Der hier sichtbare erste Anschlußflansch 3 hat eine Einlaßöffnung 4 und eine Auslaßöffnung 5 für die Kühlflüssigkeit. Außerdem besitzt er eine Abgaseinlaßöffnung 6, an die sich eine in leicht abgewinkeltem Bogen verlaufende Vertiefung 11 anschließt. Die Verbindung zum Zylinder für den Eintritt des Abgases befindet sich im Bereich 7.Figure 1 shows the exhaust gas recirculation valve 1 with flange module 2 according to the viewing direction R, which is shown in Figure 5 with an arrow. That as an electrical exhaust gas recirculation valve 1 trained valve is known per se. In connection with the flange module 2 this can be done Attach exhaust gas recirculation valve 1 directly to the cylinder head of an internal combustion engine. This here visible first connection flange 3 has an inlet opening 4 and an outlet opening 5 for the Coolant. In addition, it has an exhaust gas inlet opening 6, to which one can easily be attached angled arc extending recess 11 connects. The connection to the cylinder for the entry of the exhaust gas is in area 7.

Die gegenüberliegende Seite des Flanschmoduls 2 ist in Figur 2 ersichtlich, und zwar in Blickrichtung S auf den zweiten Anschlußflansch 8 entsprechend der in Figur 5 angegebenen Pfeilrichtung S. Der zweite Anschlußflansch 8 hat eine Abgasaustrittsöffnung 9, über die eine Verbindung zum Ansaugkanal des Verbrennungsmotors hergestellt wird.The opposite side of the flange module 2 can be seen in FIG. 2, specifically in Direction S of view of the second connecting flange 8 corresponding to that in FIG. 5 indicated arrow direction S. The second connecting flange 8 has an exhaust gas outlet opening 9, via which a connection to the intake duct of the internal combustion engine is established.

In Figur 2 ist auch der elektrische Anschluß 10 des Abgasrückführventils ersichtlich.The electrical connection 10 of the exhaust gas recirculation valve can also be seen in FIG.

Die Seitenansicht von Figur 3 zeigt im wesentlichen die gleichen Elemente, wie die perspektivische Ansicht von Figur 1.The side view of Figure 3 shows essentially the same elements as the perspective view of Figure 1.

Der Querschnitt von Figur 4 entlang der in Figur 3 angegebenen Schnittlinie C-C zeigt den koaxial zur Mittelachse des Abgasrückführventils verlaufenden Abgaskanal 12, der von der Abgaseinlaßöffnung 6 (Figur 3) vertikal nach oben zum Abgasrückführventil 1 führt. Zur Kühlung des im Abgaskanal 12 strömenden Abgases ist im Flanschmodul 2 der vertikale Teilbereich des Abgaskanals 12 von einem ringförmigen Kühlkanal 13 umgeben. Die Kühlflüssigkeit strömt über eine Öffnung 14 in den ringförmigen Kühlkanal 13 ein.The cross section of Figure 4 along the section line C-C shown in Figure 3 shows the Exhaust gas duct 12 running coaxially to the central axis of the exhaust gas recirculation valve Exhaust gas inlet opening 6 (FIG. 3) leads vertically upward to the exhaust gas recirculation valve 1. For Cooling of the exhaust gas flowing in the exhaust duct 12 is vertical in the flange module 2 Part of the exhaust duct 12 is surrounded by an annular cooling duct 13. The Coolant flows into the annular cooling channel 13 via an opening 14.

Anhand der Figuren 5 und 6, die Längsschnitte entlang der in Figur 4 angegebenen Schnittlinien A-A bzw. B-B zeigen, sind weitere Merkmale des Flanschmoduls 2 ersichtlich. Die Strömungsrichtung des Abgases im Abgaskanal 12 ist in Figur 6 mit dem Pfeil 15 dargestellt. Im übrigen sind die aus den vorhergehenden Figuren ersichtlichen Elemente mit entsprechenden Bezugszahlen gekennzeichnet.With reference to Figures 5 and 6, the longitudinal sections along the indicated in Figure 4 Section lines A-A and B-B show, further features of the flange module 2 can be seen. The direction of flow of the exhaust gas in the exhaust duct 12 is with the arrow 15 in FIG. 6 shown. For the rest, the elements shown in the previous figures are included corresponding reference numbers marked.

Claims (5)

Abgasrückführventil (1) mit einem Flanschmodul (2), der die Anschlußverbindung zwischen dem Auslaß und dem Einlaß eines Verbrennungsmotors darstellt und der zusätzlich einen an den Kühlkreislauf des Verbrennungsmotors anschließbaren Kühlkanal hat,
dadurch gekennzeichnet, daß der Kühlkanal (13) einen im Flanschmodul (2) zum Abgasrückführventil (1) führenden Abgaskanal (12) umschließt. Exhaust gas recirculation valve (1) with a flange module (2) which represents the connection between the outlet and the inlet of an internal combustion engine and which additionally has a cooling duct which can be connected to the cooling circuit of the internal combustion engine,
characterized, that the cooling duct (13) surrounds an exhaust duct (12) leading in the flange module (2) to the exhaust gas recirculation valve (1). Abgasrückführventil nach Anspruch 1, dadurch gekennzeichnet, daß der zum Abgasrückführventil führende Abgaskanal (12) in einem Teilbereich koaxial zurMittelachse des Abgasrückführventils (1) verläuft, und daß dieser Teilbereich des Abgaskanals (12) von einem ringförmigen Kühlkanal (13) umgeben ist. Exhaust gas recirculation valve according to claim 1, characterized in that the exhaust gas duct (12) leading to the exhaust gas recirculation valve extends coaxially to the central axis of the exhaust gas recirculation valve (1), and that this portion of the exhaust duct (12) is surrounded by an annular cooling duct (13). Abgasrückführventil nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Flanschmodul (2) zum direkten Anschluß an den Zylinderkopf des Verbrennungsmotors einen ersten Anschlußflansch (3) mit Ein- und Auslaßöffnungen (4; 5) für die Kühlflüssigkeit des Kühlkreislaufs und eine Abgaseinlaßöffnung (6) hat, und daß ein zweiter Anschlußflansch (8) die Abgasaustrittsöffnung (9) aufweist. Exhaust gas recirculation valve according to one of claims 1 or 2, characterized in that that the flange module (2) for direct connection to the cylinder head of the internal combustion engine has a first connection flange (3) with inlet and outlet openings (4; 5) for the cooling liquid of the cooling circuit and an exhaust gas inlet opening (6), and that a second connecting flange (8) has the exhaust gas outlet opening (9). Abgasrückführventil nach Anspruch 3, dadurch gekennzeichnet, daß die beiden Anschlußflansche (3, 8) gegenüberliegend am Flanschmodul (2) ausgebildet sind.Exhaust gas recirculation valve according to claim 3, characterized in that the two Connection flanges (3, 8) are formed opposite on the flange module (2). Abgasrückführventil nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, daß die beiden Anschlußflansche (3, 8) mit unterschiedlichen Neigungen in spitzem Winkel zur Mittelachse des Abgasrückführventils (1) verlaufen.Exhaust gas recirculation valve according to one of claims 3 or 4, characterized in that the two connecting flanges (3, 8) with different inclinations at an acute angle run to the central axis of the exhaust gas recirculation valve (1).
EP98119036A 1997-10-09 1998-10-08 Exhaust gas recirculation valve Revoked EP0908615B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744596A DE19744596A1 (en) 1997-10-09 1997-10-09 Exhaust gas recirculation valve
DE19744596 1997-10-09

Publications (3)

Publication Number Publication Date
EP0908615A2 true EP0908615A2 (en) 1999-04-14
EP0908615A3 EP0908615A3 (en) 2000-01-12
EP0908615B1 EP0908615B1 (en) 2004-01-14

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EP (1) EP0908615B1 (en)
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020156A1 (en) * 1999-09-16 2001-03-22 Transtec Plc Exhaust gas recirculation system
WO2000068560A3 (en) * 1999-05-05 2001-04-26 Daimler Chrysler Ag Device for recirculating the exhaust gas of an internal combustion engine
EP1267059A2 (en) * 2001-05-28 2002-12-18 Mitsubishi Denki Kabushiki Kaisha Exhaust gas recirculation valve
EP1355057A3 (en) * 2002-04-20 2005-11-16 Gustav Wahler GmbH u. Co.KG Exhaust gas recirculation device for an internal combustion engine
WO2007098854A1 (en) * 2006-02-24 2007-09-07 Behr Gmbh & Co. Kg Valve for regulating an exhaust gas flow of an internal combustion engine, heat exchanger for exhaust gas cooling, system having at least one valve and having at least one heat exchanger
EP2077387A1 (en) 2008-01-07 2009-07-08 Ford Global Technologies, LLC Method for cooling a recirculated exhaust gas flow of an internal combustion engine
EP0916837B2 (en) † 1997-11-17 2011-10-26 Behr GmbH & Co. KG Exhaust gas recirculating device for a combustion engine
EP2422069A1 (en) * 2009-04-20 2012-02-29 International Engine Intellectual Property Company, LLC Exhaust gas recirculation valve and method of cooling
DE102013215420A1 (en) 2013-08-06 2015-02-12 Volkswagen Aktiengesellschaft Internal combustion engine
EP2987994A1 (en) * 2014-08-22 2016-02-24 Handtmann Systemtechnik GmbH & Co. KG Motor inlet air distributor unit with a housing and an actuator
FR3063772A1 (en) * 2017-03-08 2018-09-14 Renault S.A.S HP EGR EXCHANGER INTERFACE FOR THERMAL ENGINE
WO2020177865A1 (en) 2019-03-07 2020-09-10 Pierburg Gmbh Valve device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10119484B4 (en) * 2001-04-20 2018-01-04 Bayerische Motoren Werke Aktiengesellschaft Liquid-cooled internal combustion engine with an exhaust gas recirculation system
DE102015210211A1 (en) * 2015-06-02 2016-12-08 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft valve module

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EP0763655A2 (en) 1995-09-13 1997-03-19 Honda Giken Kogyo Kabushiki Kaisha Structure for supporting EGR valve in engine

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Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP0916837B2 (en) † 1997-11-17 2011-10-26 Behr GmbH & Co. KG Exhaust gas recirculating device for a combustion engine
WO2000068560A3 (en) * 1999-05-05 2001-04-26 Daimler Chrysler Ag Device for recirculating the exhaust gas of an internal combustion engine
US6631707B1 (en) 1999-05-05 2003-10-14 Daimlerchrysler Ag Device for recirculating the exhaust gas of an internal combustion engine
WO2001020156A1 (en) * 1999-09-16 2001-03-22 Transtec Plc Exhaust gas recirculation system
EP1267059A2 (en) * 2001-05-28 2002-12-18 Mitsubishi Denki Kabushiki Kaisha Exhaust gas recirculation valve
EP1267059A3 (en) * 2001-05-28 2003-11-05 Mitsubishi Denki Kabushiki Kaisha Exhaust gas recirculation valve
US6708675B2 (en) 2001-05-28 2004-03-23 Mitsubishi Denki Kabushiki Kaisha Exhaust gas recirculation valve
EP1355057A3 (en) * 2002-04-20 2005-11-16 Gustav Wahler GmbH u. Co.KG Exhaust gas recirculation device for an internal combustion engine
WO2007098854A1 (en) * 2006-02-24 2007-09-07 Behr Gmbh & Co. Kg Valve for regulating an exhaust gas flow of an internal combustion engine, heat exchanger for exhaust gas cooling, system having at least one valve and having at least one heat exchanger
EP2077387A1 (en) 2008-01-07 2009-07-08 Ford Global Technologies, LLC Method for cooling a recirculated exhaust gas flow of an internal combustion engine
EP2422069A1 (en) * 2009-04-20 2012-02-29 International Engine Intellectual Property Company, LLC Exhaust gas recirculation valve and method of cooling
JP2012524212A (en) * 2009-04-20 2012-10-11 インターナショナル エンジン インテレクチュアル プロパティー カンパニー リミテッド ライアビリティ カンパニー Exhaust gas recirculation valve and cooling method
EP2422069A4 (en) * 2009-04-20 2013-10-16 Int Engine Intellectual Prop Exhaust gas recirculation valve and method of cooling
DE102013215420A1 (en) 2013-08-06 2015-02-12 Volkswagen Aktiengesellschaft Internal combustion engine
EP2987994A1 (en) * 2014-08-22 2016-02-24 Handtmann Systemtechnik GmbH & Co. KG Motor inlet air distributor unit with a housing and an actuator
FR3063772A1 (en) * 2017-03-08 2018-09-14 Renault S.A.S HP EGR EXCHANGER INTERFACE FOR THERMAL ENGINE
WO2020177865A1 (en) 2019-03-07 2020-09-10 Pierburg Gmbh Valve device

Also Published As

Publication number Publication date
EP0908615A3 (en) 2000-01-12
DE19744596A1 (en) 1999-04-15
EP0908615B1 (en) 2004-01-14
DE59810580D1 (en) 2004-02-19

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