EP0994247B1 - Ventilanordnung zur Steuerung eines rückgeführten Abgasstromes - Google Patents
Ventilanordnung zur Steuerung eines rückgeführten Abgasstromes Download PDFInfo
- Publication number
- EP0994247B1 EP0994247B1 EP99101651A EP99101651A EP0994247B1 EP 0994247 B1 EP0994247 B1 EP 0994247B1 EP 99101651 A EP99101651 A EP 99101651A EP 99101651 A EP99101651 A EP 99101651A EP 0994247 B1 EP0994247 B1 EP 0994247B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- valve
- arrangement according
- closure member
- gas flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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
- F02M26/71—Multi-way valves
-
- 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
- F02M26/23—Layout, e.g. schematics
- F02M26/25—Layout, e.g. schematics with coolers having bypasses
- F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass 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
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/68—Closing members; Valve seats; Flow passages
-
- 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
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
-
- 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
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
- F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
Definitions
- the invention relates to a valve arrangement for controlling an externally recirculated exhaust gas flow on an internal combustion engine according to the preamble of claim 1.
- Generic valve arrangements are known for example from WO 96/30635 and US 5,205,265 A.
- WO 96/30635 several schematic arrangements of an internal combustion engine with an exhaust system and an exhaust gas cooler are known, an exhaust gas recirculation line branching off from the exhaust line, which in turn has a Y-shaped branch.
- An exhaust gas cooler is used in one branch of this branch, while the other branch is a bypass for this exhaust gas cooler. Downstream of the exhaust gas cooler, these two branched paths are brought together again in order to introduce appropriately cooled or uncooled, recirculated exhaust gas into an air intake line of the internal combustion engine.
- This combination has either one or two valves, which are controlled only by an electronic control device and are only shown schematically.
- US 5,205,265 shows a comparable arrangement with a branch downstream of one Catalyst in an exhaust system, with a first valve via this branch recirculated exhaust gas flow either via an EGR cooler and then via conducts an exhaust filter or bypasses this EGR cooler.
- an idle flow regulator is known from German patent DE-621 945 known for an internal combustion engine in such a way that feeding into a mixture Line two opposing valve seats are incorporated, on which Put the valve disc on. These two valve plates are arranged on a common rod. With the throttle valve closed and therefore in the mixture line Vacuum affects the atmospheric ambient pressure on one of the valve disks in the opening direction and opens it against a spring assigned to the other valve plate to ensure a fresh air supply ensuring idling. In this arrangement Both valve plates are fixed on the connecting rod and the opening movement both valve disks are always carried out together by one acting on one of the valve disks Pressure difference.
- the object of the invention is to provide a generic valve arrangement, which enables an externally recirculated in a structurally simple design Exhaust gas flow either via an exhaust gas cooler or via a bypass To lead.
- the valve arrangement has two valve seats, which each assigned a closure member, preferably designed as a circular valve plate is, with both closure members actuated by a common actuation mechanism are and they are both elastically biased towards their closed position are also acted upon by the exhaust gas pressure of the exhaust gas stream.
- the valve arrangement according to the invention advantageously has a double-seat valve provided which can be actuated either by a common actuation mechanism can release the cooled or the uncooled, recirculated exhaust gas flow, the resiliently bringing the closure members into abutment on their valve seat Comparatively low due to the support of the equivalent exhaust gas pressure be dimensioned and can be structurally simple.
- the closure members are preferably designed as a circular valve plate on a common actuating rod of the actuating mechanism which can be actuated by an actuator arranged.
- This actuating rod can preferably one of the two closure members enforce centrally.
- One of the two closure members is preferably movable arranged on the operating rod.
- the actuator is preferably assigned to the internal combustion engine controlled electronic control unit in dependence on several sensor signals, so that low-emission operation of the internal combustion engine is ensured.
- valve seats are arranged, with a common outflow path downstream of these valve seats is provided.
- the drawing shows at its lower edge an exhaust pipe 1 of an internal combustion engine (not shown), from which a return pipe, designated overall by 2, for the external return of a part of the exhaust gas flow branches off into an air pipe 3 that supplies combustion air and can be seen at the top of the picture.
- the return line 2 branches in a fork 4 into a line section 6 having an exhaust gas cooler 5 and into a line section 7 arranged parallel to it and acting as a bypass for the exhaust gas cooler 5.
- the exhaust gas cooler 5 can have, for example, a cooling coil 8 through which cooling water flows.
- the line sections 6 and 7 are formed in sections in a housing 9 having the valve arrangement according to the invention.
- This has a channel-like flow path 10 for the exhaust gas stream flowing through the exhaust gas cooler 5 and, separate therefrom, a further channel-like flow path 11 for the exhaust gas stream flowing through the bypass (line section 7).
- both flow paths 10 and 11 open into a valve seat 12 and 13 on the housing, which are controlled by closure members 16 designed as circular valve plates 14 and 15.
- the one valve disk 14 is centrally located by a part of an actuating mechanism 17 penetrating actuating rod 18 and is slidably mounted on this.
- the actuating rod 18 is mounted in a guide bush 19 in the housing 9.
- a lever mechanism 20 which is shown in a highly schematic manner, which has a double-acting actuator 21 at the end.
- This actuator 21st is interposed by an electronic converter, not shown Control unit 25 controlled, which in turn is the engine control unit of the internal combustion engine is and a plurality of sensor signals and other, not shown Controls components of the internal combustion engine.
- the flow paths 10, 11 are in the Air line 3 opening outflow path 22 in connection.
- the actuating rod 18 each has one Collar 23 or 24 on the respective associated closure member 16 in the opening direction acts.
- On the side facing away from these frets 23, 24, 26 of the Valve plates 14, 15 act as compression springs 28, 29 designed as elastic biasing means, which are supported at the other end in the housing 9 and the closure members 16 in Apply closing direction.
- valve assembly is in the position shown in the drawing, that is, the return line 2 is by system of the two valve plates 14 and 15 locked on their assigned seats 12 and 13.
- Both the one with the reference numerals 1, 4, 7 and 11 as well the exhaust gas pressure across the flow path 1, 4, 6 and 10 at the double valve acts on the sides 16 and 17, respectively, so that the valve plates 14 and 15 are thereby in their closed position are acted upon.
- control element 25 is displaced into a further position via the control device 25 in such a way that the actuating rod 18 is displaced to the left, as a result of which the collar 23 engages in a form-fitting manner on the valve plate 14 and from its valve seat 12 lifts up, at the same time collar 24 lifts the positive locking from valve plate 15. If cooled or uncooled exhaust gas is thus returned to the air line 3, it passes either via flow path 10 or flow path 11 into the outflow path 22 in the housing 9 arranged downstream of the valve plates 14 and 15.
- the actuator 21 can be a double-acting pneumatic socket or an electrical one Actuator or as a magnetic signal box or, for example, as a double-acting hydraulic piston or be designed differently.
- inner housing walls 30 and 31 are in the area of the valve seats 12 and 13 formed plan, so that this in a relatively simple manner can be provided.
- valve seats 12 and 13 in deviation from the drawing figure is one different design of the valve seats 12 and 13 possible, for example by flat contact the valve plate 14 and 15 on the housing walls 30 and 31.
- the closure members 16 are held in their closed position by the exhaust gas pressure, so that the springs 28 and 29 applying the elastic preload can be dimensioned correspondingly small.
- the right-hand valve plate 15 opens, the left-hand spring 28 remains unaffected, so that only the low closing force of the spring 29 can be overcome by the actuating mechanism 17.
- the situation is analogous with an opening movement of the valve disc 14 on the left.
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)
- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
Description
Aus WO 96/30635 sind mehrere schematische Anordnungen einer Brennkraftmaschine mit einer Abgasanlage und einem Abgaskühler bekannt, wobei aus dem Abgasstrang eine Abgasrückführleitung abzweigt, welche ihrerseits eine Y-förmige Verzweigung aufweist. In einem Zweig dieser Verzweigung ist ein Abgaskühler eingesetzt, während der andere Zweig einen Bypass für diesen Abgaskühler darstellt. Stromab des Abgaskühlers werden diese beiden verzweigten Wege erneut zusammengeführt, um entsprechend gekühltes oder ungekühltes, rückgeführtes Abgas in eine Luftansaugleitung der Brennkraftmaschine einzuleiten. Diese Zusammenführung weist entweder ein oder zwei von einer elektronischen Kontrolleinrichtung beherrschte, nur schematisch gezeigte Ventile auf.
Die Rückführleitung 2 verzweigt in einer Gabelung 4 in einen einen Abgaskühler 5 aufweisenden Leitungsabschnitt 6 und in einen parallel dazu angeordneten, als Bypass für den Abgaskühler 5 wirkenden Leitungsabschnitt 7.
Der Abgaskühler 5 kann beispielsweise eine von Kühlwasser durchströmte Kühlschlange 8 aufweisen.
Abströmseitig münden beide Strömungspfade 10 und 11 in je einen gehäuseseitigen Ventilsitz 12 und 13, welche von als kreisrunde Ventilteller 14 und 15 ausgebildeten Verschlußgliedern 16 beherrscht sind.
Wird also gekühltes oder ungekühltes Abgas in die Luftleitung 3 zurückgeführt, gelangt dieses entweder über Strömungspfad 10 oder Strömungspfad 11 in den stromab der Ventilteller 14 und 15 angeordneten Ausströmpfad 22 im Gehäuse 9.
Bei einer Öffnungsbewegung des rechtsliegenden Ventiltellers 15 bleibt die linksliegende Feder 28 unberührt, sodaß lediglich die geringe Schließkraft der Feder 29 durch den Betätigungsmechanismus 17 zu überwinden ist. Analog sind die Verhältnisse bei einer Öffnungsbewegung des linksliegenden Ventiltellers 14.
Claims (10)
- Ventilanordnung zur Steuerung eines extern rückgeführten Abgasstromes an einer Brennkraftmaschine, mit einem in einer Rückführleitung (2) angeordneten Abgaskühler (5), welcher mittels der Ventilanordnung wahlweise umgangen werden kann, dadurch gekennzeichnet, daß die Ventilanordnung zwei Ventilsitze (12, 13) aufweist, denen jeweils ein Verschlußglied (16) zugeordnet ist, welche von einem gemeinsamen Betätigungsmechanismus (17) über ein Stellorgan (21) betätigbar sind, wobei diese Verschlußglieder (16) in ihre Schließstellung sowohl elastisch vorgespannt als auch durch Abgasdruck des Abgasstromes belastet sind.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Verschlußglieder (16) als kreisrunde Ventilteller (14, 15) ausgebildet an einer gemeinsamen Betätigungsstange (18) angeordnet sind.
- Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ventilanordnung in einem gemeinsamen Gehäuse (9) angeordnet ist, welches einen Strömungspfad (10) für den über den Abgaskühler (5) strömenden Abgasstrom und davon getrennt einen Strömungspfad (11) für den den Abgaskühler (5) umgehenden Abgasstrom aufweist, wobei beide Strömungspfade (10, 11) abströmseitig von den Verschlußgliedern (16) beherrscht sind und in einen gemeinsamen Ausströmpfad (22) münden.
- Anordnung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Stellorgan (21) von einem elektronischen Steuergerät (25) in Abhängigkeit von Sensorsignalen angesteuert den Betätigungsmechanismus (17) in eine von zwei zueinander entgegengesetzte Betätigungsrichtungen verschiebt.
- Anordnung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Betätigungsmechanismus (17) vom Stellorgan (21) in zumindest eine die Rückführung von Abgas sperrende Stellung bewegbar ist, in welcher beide Verschlußglieder (16) auf ihren Ventilsitzen (12, 13) aufliegen, sowie jeweils in mindestens eine den über den Abgaskühler (5) geleiteten Abgasstrom rückführende Stellung oder eine den Abgaskühler (5) umgehende Stellung.
- Anordnung nach Anspruch 5, dadurch gekennzeichnet, daß die Verschlußglieder (16) in beliebige, die rückgeführte Abgasmenge regelnde Stellungen bewegbar sind.
- Anordnung nach Anspruch 2, dadurch gekennzeichnet, daß die Betätigungsstange (18) eines der Verschlußglieder (16) gleitverschieblich durchsetzt und mit einem Bund (23) formschlüssig am Ventilteller (14) in dessen Öffnungsrichtung angreift, und die elastische Vorspannung auf die diesem Bund (23) gegenüberliegende Fläche (26) des Ventiltellers (14) in dessen Schließrichtung wirkt.
- Anordnung nach Anspruch 7, dadurch gekennzeichnet, daß dem das eine Verschlußglied (16) durchsetzenden Teil der Betätigungsstange (18) ein weiterer Bund (24) zugeordnet ist, welcher in Öffnungsrichtung des anderen Verschlußgliedes (16) formschlüssig an diesem anliegt.
- Anordnung nach Anspruch 8, dadurch gekennzeichnet, daß die elastische Vorspannung auf eine diesem Bund (24) gegenüberliegende Fläche (27) dieses anderen Verschlußgliedes (16) in dessen Schließrichtung wirkt.
- Anordnung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß jedem Verschlußglied (16) eine eigene, dessen Öffnungsbewegung entgegenwirkende Feder (28, 29) zugeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19812702A DE19812702A1 (de) | 1998-03-23 | 1998-03-23 | Ventilanordnung zur Steuerung eines rückgeführten Abgasstromes |
DE19812702 | 1998-03-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0994247A2 EP0994247A2 (de) | 2000-04-19 |
EP0994247A3 EP0994247A3 (de) | 2001-04-11 |
EP0994247B1 true EP0994247B1 (de) | 2004-07-28 |
Family
ID=7861980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99101651A Expired - Lifetime EP0994247B1 (de) | 1998-03-23 | 1999-02-05 | Ventilanordnung zur Steuerung eines rückgeführten Abgasstromes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0994247B1 (de) |
DE (2) | DE19812702A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1793114A2 (de) | 2005-12-02 | 2007-06-06 | Behr Thermot-tronik GmbH | Vorrichtung, insbesondere Abgasrückführventileinrichtung, zum Steuern oder Regeln eines Fluidstroms |
DE102006053755A1 (de) * | 2005-12-02 | 2007-08-09 | Behr Thermot-Tronik Gmbh | Doppelventil für eine Einrichtung zur Abgasrückführung |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10028400A1 (de) * | 2000-06-13 | 2001-12-20 | Pierburg Ag | Luftansaugvorrichtung für eine Brennkraftmaschine |
FR2827011B1 (fr) * | 2001-07-05 | 2003-10-03 | Renault | Vanne de commande pour un circuit de recirculation de gaz d'echappement d'un moteur a combustion interne |
ES2209610B1 (es) * | 2002-05-06 | 2005-04-01 | Valeo Termico, S.A. | Sistema para el control de la circulacion de gases, en especial de los gases de escape de un motor. |
US7743816B2 (en) * | 2002-05-15 | 2010-06-29 | Behr Gmbh & Co. Kg | Switchable waste gas exchanger |
DE102004024650B4 (de) * | 2004-05-18 | 2006-05-11 | Pierburg Gmbh | Regelbare Zwei-Wege-Ventilvorrichtung |
DE102004025184B4 (de) | 2004-05-21 | 2008-01-31 | Pierburg Gmbh | Regelbare Zweiwegeventilvorrichtung |
FR2872862B1 (fr) * | 2004-07-09 | 2006-09-22 | Renault Sas | Dispositif de commande pour un circuit de recirculation de gaz d'echappement d'un moteur a combustion interne |
DE102004040221B4 (de) | 2004-08-19 | 2009-01-08 | Pierburg Gmbh | Regelbare Zwei-Wege-Ventilvorrichtung für eine Verbrennungskraftmaschine |
DE102004057306A1 (de) | 2004-11-26 | 2006-06-01 | Siemens Ag | Verfahren zur Rückführung eines Teilstromes an Abgas zu einem Verbrennungsmotor eines Kraftfahrzeuges |
WO2006086419A1 (en) | 2005-02-07 | 2006-08-17 | Borgwarner Inc. | Exhaust throttle-egr valve module for a diesel engine |
FR2883037B1 (fr) * | 2005-03-09 | 2010-08-27 | Valeo Sys Controle Moteur Sas | Dispositif de recirculation de gaz d'echappement comportant une vanne de regulation de debit et de raccordement selectif |
DE102005038402A1 (de) * | 2005-08-12 | 2007-02-15 | Benteler Automobiltechnik Gmbh | Abgaskühler für Kraftfahrzeuge |
DE102006034886A1 (de) * | 2006-07-25 | 2008-01-31 | Behr Gmbh & Co. Kg | Fluidstromregelungseinrichtung |
DE102007048301B4 (de) | 2007-10-08 | 2011-07-07 | Benteler Automobiltechnik GmbH, 33102 | Ventilanordnung eines Abgasrückführungssystems |
DE102007058664A1 (de) | 2007-12-06 | 2009-06-10 | Gustav Wahler Gmbh U. Co. Kg | Doppelventil für eine Einrichtung zur Abgasrückführung |
EP2133546B1 (de) | 2008-06-12 | 2011-08-17 | Kia Motors Corporation | Abgasrückführungsvorrichtung und Fahrzeug |
DE102008030785B4 (de) | 2008-06-28 | 2012-10-31 | Pierburg Gmbh | Abgasrückführvorrichtung für eine Verbrennungskraftmaschine |
DE102009036284A1 (de) | 2009-08-06 | 2011-02-24 | Pierburg Gmbh | Ventilvorrichtung für eine Verbrennungskraftmaschine |
DE102010006037B4 (de) | 2010-01-27 | 2013-01-17 | Pierburg Gmbh | Ventilvorrichtung für eine Verbrennungskraftmaschine |
FR2979124B1 (fr) * | 2011-08-18 | 2015-10-09 | Wevista | Echangeur egr a vanne integree |
DE102016200510A1 (de) * | 2016-01-18 | 2017-07-20 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung und Verfahren zur Abgasrückführung |
CN109944720B (zh) * | 2019-04-10 | 2024-05-31 | 温州市温纳汽车配件有限公司 | 一种废气再循环系统的旁通阀结构 |
WO2021037367A1 (de) * | 2019-08-29 | 2021-03-04 | Pierburg Gmbh | Abgasrückführsystem für eine verbrennungskraftmaschine sowie verfahren zur regelung eines derartigen abgasrückführsystems |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69133098T2 (de) * | 1990-11-06 | 2003-04-17 | Mazda Motor Corp., Hiroshima | Abgasrückführungssystem für eine Brennkraftmaschine |
-
1998
- 1998-03-23 DE DE19812702A patent/DE19812702A1/de not_active Withdrawn
-
1999
- 1999-02-05 DE DE59910053T patent/DE59910053D1/de not_active Expired - Lifetime
- 1999-02-05 EP EP99101651A patent/EP0994247B1/de not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1793114A2 (de) | 2005-12-02 | 2007-06-06 | Behr Thermot-tronik GmbH | Vorrichtung, insbesondere Abgasrückführventileinrichtung, zum Steuern oder Regeln eines Fluidstroms |
DE102006053755A1 (de) * | 2005-12-02 | 2007-08-09 | Behr Thermot-Tronik Gmbh | Doppelventil für eine Einrichtung zur Abgasrückführung |
Also Published As
Publication number | Publication date |
---|---|
DE59910053D1 (de) | 2004-09-02 |
DE19812702A1 (de) | 1999-09-30 |
EP0994247A2 (de) | 2000-04-19 |
EP0994247A3 (de) | 2001-04-11 |
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