DE102005012842A1 - Air intake device for an internal combustion engine with deployable bypass valve device - Google Patents
Air intake device for an internal combustion engine with deployable bypass valve device Download PDFInfo
- Publication number
- DE102005012842A1 DE102005012842A1 DE102005012842A DE102005012842A DE102005012842A1 DE 102005012842 A1 DE102005012842 A1 DE 102005012842A1 DE 102005012842 A DE102005012842 A DE 102005012842A DE 102005012842 A DE102005012842 A DE 102005012842A DE 102005012842 A1 DE102005012842 A1 DE 102005012842A1
- Authority
- DE
- Germany
- Prior art keywords
- channel
- exhaust gas
- bypass
- cooling
- gas recirculation
- 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.)
- Withdrawn
Links
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
- F02M26/23—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
- F02M26/71—Multi-way valves
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)
Abstract
Die Erfindung betrifft eine Luftansaugvorrichtung (1) für eine Brennkraftmaschine, beinhaltend einen Abgasrückführkanal (2) mit einer Durchgangsöffnung (4), in welche eine Bypassklappeneinrichtung (6) einsetzbar ist, die wenigstens eine an einer von einer Stelleinrichtung antreibbaren Welle (8) drehbar befestigte Bypassklappe (10) und einen die Welle (8) fliegend lagernden Befestigungsflansch (12) umfasst, wobei die Bypassklappe (10) zwischen einer ersten Stellung (31), in welcher ein stromaufwärtiger Teil (32) des Abgasrückführkanals (2) mit einem zu einer Abgaskühleinrichtung führenden Kühlkanal (24) verbunden ist, und einer zweiten Stellung (33), in welcher der stromaufwärtige Teil (32) des Abgasrückführkanals (2) mit einem die Abgaskühleinrichtung umgehenden Bypasskanal (26) verbunden ist, schwenkbar ist. DOLLAR A Die Erfindung sieht vor, dass die Bypassklappe (10) in der ersten Stellung (31) oder in der zweiten Stellung (33) eine Lage einnimmt, in welcher sie die Abgasströmung vom stromaufwärtigen Teil (32) des Abgasrückführkanals (2) ohne Richtungsumlenkung in den Kühlkanal (24) oder in den Bypasskanal (26) leitet.The invention relates to an air intake device (1) for an internal combustion engine, comprising an exhaust gas recirculation passage (2) with a passage opening (4) into which a bypass flap device (6) can be inserted which rotatably supports at least one shaft (8) which can be driven by an adjustment device Bypass flap (10) and a shaft (8) overhung mounting flange (12), wherein the bypass flap (10) between a first position (31), in which an upstream part (32) of the exhaust gas recirculation passage (2) with a to a Exhaust cooling device leading cooling passage (24) is connected, and a second position (33) in which the upstream part (32) of the exhaust gas recirculation passage (2) is connected to a bypass channel (26) bypassing the exhaust gas cooling device, is pivotable. DOLLAR A The invention provides that the bypass flap (10) in the first position (31) or in the second position (33) occupies a position in which they the exhaust gas flow from the upstream part (32) of the exhaust gas recirculation passage (2) without directional deflection into the cooling channel (24) or in the bypass channel (26) passes.
Description
Die Erfindung betrifft eine Luftansaugvorrichtung für eine Brennkraftmaschine beinhaltend einen Abgasrückführkanal mit einer Durchgangsöffnung, in welche eine Bypassklappeneinrichtung einsetzbar ist, die wenigstens eine an einer von einer Stelleinrichtung antreibbaren Welle drehbar befestigte Bypassklappe und einen die Welle fliegend lagernden Befestigungsflansch umfasst, wobei die Bypassklappe zwischen einer ersten Stellung, in welcher ein stromaufwärtiger Teil des Abgasrückführkanals mit einem zu einer Abgaskühleinrichtung führenden Kühlkanal verbunden ist und einer zweiten Stellung, in welcher der stromaufwärtige Teil des Abgasrückführkanals mit einem die Abgaskühleinrichtung umgehenden Bypasskanal verbunden ist, schwenkbar ist, gemäß dem Oberbegriff von Anspruch 1.The The invention relates to an air intake device for an internal combustion engine including an exhaust gas recirculation channel with a passage opening, in which a bypass flap device can be used, the at least a rotatable on one of an actuating device driven shaft fixed bypass flap and a wave-bearing mounting flange comprising, wherein the bypass flap between a first position, in which an upstream Part of the exhaust gas recirculation channel with a to an exhaust gas cooling device leading cooling channel is connected and a second position, in which the upstream part the exhaust gas recirculation channel with a the exhaust gas cooling device bypassing channel is pivotable, according to the preamble of claim 1.
Eine
solche Luftansaugvorrichtung ist aus der
Der Erfindung liegt demgegenüber die Aufgabe zugrunde, eine Luftansaugvorrichtung der eingangs erwähnten Art derart weiter zu bilden, dass die oben genannten Nachteile vermieden werden.Of the Invention is in contrast the task is based, an air intake device of the type mentioned to continue to form so that the above-mentioned disadvantages avoided become.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale von Patentanspruch 1 gelöst.These The object is achieved by the Characteristics of claim 1 solved.
Indem die Bypassklappe in der ersten oder in der zweiten Stellung eine Lage einnimmt, in welcher sie die Abgasströmung vom stromaufwärtigen Teil des Abgasrückführkanals ohne Richtungsumlenkung in den Kühlkanal oder in den Bypasskanal leitet, werden Strömungsverluste infolge einer Umlenkung der Strömungsrichtung vermieden. Infolgedessen steht ein höherer Abgasdruck im Abgasrückführkanal an, was sich positiv auf den Schadstoffausstoß auswirkt.By doing the bypass flap in the first or in the second position a Situation assumes in which the exhaust gas flow from the upstream part of Exhaust gas recirculation duct without directional deflection in the cooling channel or in the bypass channel, flow losses are due to a Deflection of the flow direction avoided. As a result, there is a higher exhaust pressure in the exhaust gas recirculation passage which has a positive effect on pollutant emissions.
In den Unteransprüchen sind vorteilhafte Ausgestaltungen der Erfindung dargestellt.In the dependent claims advantageous embodiments of the invention are shown.
Gemäß einer besonders zu bevorzugenden Ausführungsform nimmt die Bypassklappe in der ersten Stellung eine Lage ein, in welcher sie die Abgasströmung ohne Umlenkung in den Kühlkanal leitet. Damit trägt die Bypassklappe in vorteilhafter Weise nicht zur Erhöhung des wegen des Vorhandenseins der Abgaskühleinrichtung im Kühlkanal ohnehin größeren Strömungswiderstandes bei, so dass der Druck des durch den Kühlkanal rückgeführten Abgases größer wird, was letztlich eine Reduzierung der Abgasbelastung zur Folge hat. Die genannte Maßnahme trägt weiterhin dazu bei, dass die Druckverluste im Kühlkanal und diejenigen im Bypasskanal annährend gleich groß sind, was dazu führt, dass die Abgasrückführraten im Kühlbetrieb und im Bypassbetrieb etwa gleich niedrig sind.According to one particularly preferable embodiment the bypass flap assumes a position in the first position, in which is the exhaust gas flow without deflection into the cooling channel passes. Wearing it the bypass flap advantageously not to increase the because of the presence of the exhaust gas cooling device in the cooling channel anyway larger flow resistance at, so that the pressure of the exhaust gas recirculated through the cooling passage increases, which ultimately results in a reduction of exhaust pollution. The said measure continues to wear This helps to ensure that the pressure losses in the cooling channel and those in the bypass channel are approximately the same are big, which leads to, that the exhaust gas recirculation rates in cooling mode and in bypass mode are about the same low.
Die umlenkungsfreie Stellung der Bypassklappe kann beispielsweise dadurch realisiert sein, dass die Bypassklappe eben und symmetrisch zur Welle ausgeführt ist und dass eine Mittelachse der Welle in einer eine Wandung des stromaufwärtigen Teils des Abgasrückführkanals sowie eine Wandung des Kühlkanals enthaltenden Fläche liegt und die Mittelachsen und die Querschnitte des stromaufwärtigen Teils des Abgasrückführkanals und des Kühlkanals miteinander fluchten.The deflection-free position of the bypass valve, for example, characterized be realized that the bypass flap is flat and symmetrical to the shaft accomplished is and that a central axis of the shaft in a wall of the upstream part the exhaust gas recirculation channel and a wall of the cooling channel containing surface lies and the central axes and the cross sections of the upstream part the exhaust gas recirculation channel and the cooling channel aligned with each other.
Da die Bypassklappe bezüglich der Welle symmetrisch ist, ist sie bei Anströmung drehmomentfrei, wodurch sich geringe Stellkräfte ergeben. Die endseitigen Ränder der vorzugsweise rechteckförmigen Bypassklappe können als Dichtflächen ausgebildet sein. Eine solche einfache Kontur kann mit hoher Genauigkeit zu relativ geringen Kosten als Gleichteil für verschiedene Baumuster hergestellt werden.There the bypass flap with respect The shaft is symmetrical, it is free of torque during flow, causing low restoring forces result. The end edges the preferably rectangular Bypass flap can as sealing surfaces be educated. Such a simple contour can be done with high accuracy produced at relatively low cost as a common part for various types become.
Gemäß einer weiteren Maßnahme mündet der Bypasskanal im wesentlichen quer in eine Verzweigung des Abgasrückführkanals ein. Dabei kann die Verzweigung Wandungsabschnitte mit teilkreisförmigem Querschnitt enthalten, welche Dichtflächen gegenüber der Bypassklappe ausbildet. Diese teilkreisförmigen Flächen bilden Wandflächen eines Zylinders aus, dessen Mittelachse kollinear mit der Mittelachse der Welle und mit der Durchgangsbohrung ist, an welcher die Bypassklappeneinheit am Abgasrückführkanal aufgenommen ist.According to one further action opens the Bypass passage substantially transversely in a branch of the exhaust gas recirculation passage one. In this case, the branch wall sections with a part-circular cross-section contain which sealing surfaces compared to the Bypass flap forms. These part-circular surfaces form wall surfaces of a Cylinder whose central axis collinear with the central axis the shaft and with the through hole is at which the bypass flap unit at the exhaust gas recirculation channel is included.
Gemäß einer ersten Ausführungsform ist der Bypasskanal im wesentlichen komplanar mit dem Abgasrückführkanal und dem Kühlkanal angeordnet. Alternativ kann der Bypasskanal zumindest im Bereich der Verzweigung quer zu einer Ebene angeordnet sein, welche den Abgasrückführkanal und den Kühlkanal enthält.According to one first embodiment the bypass passage is substantially coplanar with the exhaust gas recirculation passage and the cooling channel arranged. Alternatively, the bypass channel at least in the area the branch be arranged transversely to a plane which the Exhaust gas recirculation passage and the cooling channel contains.
Zur Kühlung der Bypassklappeneinheit weisen besonders bevorzugt Wandungen des Abgasrückführkanals und/oder des Kühlmittelkanals und/oder des Bypasskanals wenigstens im Bereich der Verzweigung Kühlkammern auf, welche von Kühlmittel durchströmt sind. Dann kann die gesamte Bypassklappeneinheit gewechselt werden, ohne dass der Kühlmittelkreislauf geöffnet werden müsste.To cool the bypass flap unit, particularly preferably walls of the exhaust gas recirculation channel and / or the coolant channel and / or the bypass channel at least in the region of the branch on cooling chambers, which are flowed through by coolant. Then the entire bypass damper unit can be changed without that the coolant circuit would have to be opened.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt. In der Zeichnung zeigtembodiments The invention are illustrated in the drawing. In the drawing shows
Identische und gleich wirkende Bauteile und Baugruppen unterschiedlicher Ausführungsformen sind im folgenden mit denselben Bezugszahlen bezeichnet.identical and the same-acting components and assemblies of different embodiments hereinafter referred to by the same reference numerals.
Beschreibung der Ausführungsbeispieledescription the embodiments
Die
in
Besonders
bevorzugt ist die Bypassklappe
Die
Durchgangsbohrung
Weiterhin
sind auch in Ebenen senkrecht zur Welle
Durch
den Antrieb der Stelleinrichtung kann die Bypassklappe
Gemäß einer
besonders zu bevorzugenden Ausführungsform
nimmt die Bypassklappe
Gemäß der Ausführungsform
von
Alternativ
kann der Bypasskanal zumindest im Bereich der Verzweigung
Bei
beiden Ausführungsformen
weisen die Wandungen
Alternativ
kann auch eine direkte Kühlung der
Bypassklappeneinrichtung
Vor
diesem Hintergrund wird die Bypassklappe
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005012842A DE102005012842A1 (en) | 2005-03-19 | 2005-03-19 | Air intake device for an internal combustion engine with deployable bypass valve device |
PCT/EP2006/002304 WO2006099965A1 (en) | 2005-03-19 | 2006-03-14 | Air-induction unit for an internal combustion engine, comprising a bypass flap assembly that can be inserted |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005012842A DE102005012842A1 (en) | 2005-03-19 | 2005-03-19 | Air intake device for an internal combustion engine with deployable bypass valve device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005012842A1 true DE102005012842A1 (en) | 2006-09-21 |
Family
ID=36576061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005012842A Withdrawn DE102005012842A1 (en) | 2005-03-19 | 2005-03-19 | Air intake device for an internal combustion engine with deployable bypass valve device |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102005012842A1 (en) |
WO (1) | WO2006099965A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008006049A1 (en) | 2008-01-25 | 2009-07-30 | Audi Ag | Flow rate controller for medium, particularly gas, for internal-combustion engine of motor vehicle, has housing and positioning element that is arranged in housing in rotary manner |
WO2010034450A1 (en) * | 2008-09-26 | 2010-04-01 | Emcon Technologies Germany (Augsburg) Gmbh | Exhaust gas system and exhaust gas valve for controlling a volumetric flow rate of exhaust gas, and a method for controlling a volumetric flow rate |
DE102011117362A1 (en) | 2011-10-29 | 2013-05-02 | Volkswagen Ag | Heat exchanger of exhaust gas recirculation for use in motor car, has closure element comprising arcuate circumferential surface that is arranged coaxial to pivot axis and pivoted about pivot axis |
CN104675579A (en) * | 2013-12-03 | 2015-06-03 | 汪文辉 | Exhaust-controlled valve auto-rotating system |
DE102009048130B4 (en) * | 2008-10-09 | 2015-12-17 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Radiator with three operating modes for exhaust gas recirculation |
WO2017174698A1 (en) * | 2016-04-06 | 2017-10-12 | Jaguar Land Rover Limited | Valve arrangement for an energy recovery unit |
EP3705696A1 (en) * | 2019-03-08 | 2020-09-09 | Pierburg GmbH | Flap device for an internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007059751A1 (en) * | 2007-12-10 | 2009-06-25 | Smk Systeme Metall Kunststoff Gmbh & Co. Kg. | Damper device for exhaust gas recirculation system |
Citations (3)
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DE19906401C1 (en) * | 1999-02-16 | 2000-08-31 | Ranco Inc Of Delaware Wilmingt | Exhaust gas recirculation system |
WO2001044651A1 (en) * | 1999-12-14 | 2001-06-21 | Cooperstandard Automotive Fluid Systems | Integrated egr valve and cooler |
DE69912335T2 (en) * | 1998-03-11 | 2004-07-15 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Exhaust gas heat exchanger device |
Family Cites Families (4)
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JPS5423825A (en) * | 1977-07-22 | 1979-02-22 | Toyota Motor Corp | Exhaust gas recirculator |
DE10203003B4 (en) * | 2002-01-26 | 2007-03-15 | Behr Gmbh & Co. Kg | Exhaust gas heat exchanger |
DE10339623A1 (en) * | 2003-08-28 | 2005-03-24 | Gustav Wahler Gmbh U. Co. Kg | Valve, in particular exhaust valve |
JP4323333B2 (en) * | 2004-01-19 | 2009-09-02 | 株式会社マーレ フィルターシステムズ | Exhaust gas recirculation device for internal combustion engine |
-
2005
- 2005-03-19 DE DE102005012842A patent/DE102005012842A1/en not_active Withdrawn
-
2006
- 2006-03-14 WO PCT/EP2006/002304 patent/WO2006099965A1/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE69912335T2 (en) * | 1998-03-11 | 2004-07-15 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Exhaust gas heat exchanger device |
DE19906401C1 (en) * | 1999-02-16 | 2000-08-31 | Ranco Inc Of Delaware Wilmingt | Exhaust gas recirculation system |
WO2001044651A1 (en) * | 1999-12-14 | 2001-06-21 | Cooperstandard Automotive Fluid Systems | Integrated egr valve and cooler |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008006049A1 (en) | 2008-01-25 | 2009-07-30 | Audi Ag | Flow rate controller for medium, particularly gas, for internal-combustion engine of motor vehicle, has housing and positioning element that is arranged in housing in rotary manner |
WO2010034450A1 (en) * | 2008-09-26 | 2010-04-01 | Emcon Technologies Germany (Augsburg) Gmbh | Exhaust gas system and exhaust gas valve for controlling a volumetric flow rate of exhaust gas, and a method for controlling a volumetric flow rate |
DE102008048912B4 (en) | 2008-09-26 | 2021-11-04 | Faurecia Emissions Control Technologies, Germany Gmbh | Exhaust system and exhaust valve for controlling a volume flow of exhaust gas and a method for controlling a volume flow |
DE102009048130B4 (en) * | 2008-10-09 | 2015-12-17 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Radiator with three operating modes for exhaust gas recirculation |
DE102011117362A1 (en) | 2011-10-29 | 2013-05-02 | Volkswagen Ag | Heat exchanger of exhaust gas recirculation for use in motor car, has closure element comprising arcuate circumferential surface that is arranged coaxial to pivot axis and pivoted about pivot axis |
CN104675579A (en) * | 2013-12-03 | 2015-06-03 | 汪文辉 | Exhaust-controlled valve auto-rotating system |
WO2017174698A1 (en) * | 2016-04-06 | 2017-10-12 | Jaguar Land Rover Limited | Valve arrangement for an energy recovery unit |
GB2549121B (en) * | 2016-04-06 | 2019-06-12 | Jaguar Land Rover Ltd | Valve arrangement for an energy recovery unit |
EP3705696A1 (en) * | 2019-03-08 | 2020-09-09 | Pierburg GmbH | Flap device for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2006099965A1 (en) | 2006-09-28 |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
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8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
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