DE102010041841A1 - Exhaust gas treatment arrangement for internal-combustion engine, has exit gas line, where exit gas line has unit for producing pressure difference - Google Patents
Exhaust gas treatment arrangement for internal-combustion engine, has exit gas line, where exit gas line has unit for producing pressure difference Download PDFInfo
- Publication number
- DE102010041841A1 DE102010041841A1 DE102010041841A DE102010041841A DE102010041841A1 DE 102010041841 A1 DE102010041841 A1 DE 102010041841A1 DE 102010041841 A DE102010041841 A DE 102010041841A DE 102010041841 A DE102010041841 A DE 102010041841A DE 102010041841 A1 DE102010041841 A1 DE 102010041841A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- exhaust
- bypass path
- arrangement according
- treatment arrangement
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/36—Arrangements for supply of additional fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/36—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an exhaust flap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2390/00—Arrangements for controlling or regulating exhaust apparatus
- F01N2390/08—Arrangements for controlling or regulating exhaust apparatus using mechanical components only, e.g. actuated manually
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einer Abgasnachbehandlungsanordnung nach der Gattung des unabhängigen Anspruchs. Aus der
Die Entnahme von Abgas bei Dieselmotoren und dessen Einleitung in den Ansaugtrakt als Maßnahme zur Stickoxidminderung, die sogenannte Abgasrückführung, kurz „AGR”, ist ihrerseits beispielsweise aus der
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße Abgasnachbehandlungsanordnung mit den kennzeichnenden Merkmalen des unabhängigen Anspruchs hat demgegenüber den Vorteil, dass sie zumindest hinsichtlich der Abgasstromaufteilung keiner Applikation bzw. keiner Anpassung insbesondere softwarebasierter Regelungsmittel an die Einzelfallanwendung bedarf und dass die Steuerung des Abgasstroms durch den Umgehungspfad mittels rein mechanischer Mittel erfolgen kann. Als weiterer Vorteil ist anzusehen, dass die rein mechanische Regelung mit einfachen Mitteln eine hinreichend genaue und hinreichend dynamische Einstellung des Abgasmassenstroms im Umgehungspfad ermöglicht. Darüber hinaus gewährleistet der Einsatz elektronikansteuerungsfreier Mittel eine pneumatische Pufferung, die Druckschwankungen im Abgas im Umgehungspfad minimiert.The exhaust aftertreatment device according to the invention with the characterizing features of the independent claim has the advantage that at least with regard to the exhaust flow distribution no application or no adaptation particular software-based control means to the individual case application requires and that the control of the exhaust gas flow can be done by the bypass path by purely mechanical means. Another advantage is to be considered that the purely mechanical control with simple means allows a sufficiently accurate and sufficiently dynamic adjustment of the exhaust gas mass flow in the bypass path. In addition, the use of electronic control-free means provides pneumatic buffering which minimizes pressure fluctuations in the exhaust gas in the bypass path.
Durch die in den abhängigen Ansprüchen und in der Beschreibung aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im unabhängigen Anspruch angegebenen Abgasnachbehandlungsanordnung möglich.Advantageous developments and improvements of the exhaust gas after-treatment arrangement given in the independent claim are possible by the measures listed in the dependent claims and in the description.
Umfaßt das elektronikansteuerungsfreie Mittel ein Ventil mit einem temperaturabhängigen Element, insbesondere einem Bimetallkörper, so kann in definierter Weise eine Temperaturabhängigkeit des Abgasmassenstromanteils durch den Umgehungspfad eingestellt werden.If the electronic control-free means comprises a valve with a temperature-dependent element, in particular a bimetallic element, a temperature-dependence of the exhaust-gas mass flow component through the bypass path can be set in a defined manner.
Umfaßt das elektronikansteuerungsfreie Mittel ein beidseitig federgelagertes Ventil, insbesondere ein entsprechendes Kugelventil mit einer Ventilkugel, die beispielsweise zwischen zwei Federn eingespannt ist, so können in einfacher und einstellbarer Weise gezielt Druckschwankungen insbesondere im Umgehungspfad gedämpft werden.If the electronic control-free means comprises a spring-loaded valve on both sides, in particular a corresponding ball valve with a valve ball which is clamped, for example, between two springs, pressure fluctuations, in particular in the bypass path, can be damped in a simple and adjustable manner.
Eine pneumatische Pufferung mit elektronikansteuerungsfreien, pneumatisch pufferwirksamen Mitteln ist insbesondere dann von Vorteil, wenn ein druckempfindliches System wie z. B. eine Brenneranordnung im Umgehungspfad eingesetzt wird, um durch Verbrennen eines Heizstoffs im Abgastrakt die Abgastemperatur zu erhöhen. Dies gewährleistet in vorteilhafter Weise einen zuverlässigen Brennerbetrieb.A pneumatic buffering with electronic control-free, pneumatic buffer effective means is particularly advantageous if a pressure-sensitive system such. B. a burner assembly is used in the bypass path to increase the exhaust gas temperature by burning a fuel in the exhaust system. This advantageously ensures a reliable burner operation.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.
Es zeigenShow it
Ausführungsformen der ErfindungEmbodiments of the invention
Über das elektronikansteuerungsfreie Mittel
Wahlweise kann – in Abwandlung der Anordnung gemäß
Wahlweise können – wie in
Abhängig von der Anforderung an im Umgehungspfad bzw. den Mitteln zur Abgasnachbehandlung bereitzustellender Energie kann der Anteil des Abgasvolumen- bzw. Abgasmassenstroms durch den Umgehungspfad durch geeignete Wahl der Durchmesser der Querschnittsflächen
Abhängig von der Anforderung an im Umgehungspfad bzw. den Mitteln zur Abgasnachbehandlung bereitzustellender Energie kann der Anteil des Abgasvolumen- bzw. Abgasmassenstroms durch den Umgehungspfad durch geeignete Justage bzw. Wahl des sich selbst einstellenden Ventils festgelegt werden, so dass eine geeignete, hinreichend genaue selbsttätige Regelung des Massenstroms bzw. des Massenstromanteils im Umgehungspfad erfolgen kann. Erhöht sich die Abgastemperatur, beispielsweise bei einem Übergang auf wärmere Betriebspunkte, zum Beispiel höhere Drehmomentanforderungen, kann der Anteil des Abgases der Brennkraftmaschine, der über den Umgehungspfad geführt wird, verringert werden. Dies geschieht dadurch, dass sich die Bimetallfeder derart verbiegt bzw. ihre Federkonstante derart abnimmt, dass sie die Ventilkugel
In alternativen Ausführungsformen kann das Ventil auch entfernt von der Rohrverzweigung in einem mittleren Bereich des Umgehungspfads oder im Umgehungspfad nahe der Einmündung des Umgehungspfads in die Abgasleitung
In alternativen Ausführungsformen kann das Ventil insbesondere auch als Klappenventil oder Hubventil mit entsprechend temperaturabhängig wirkenden Stellelementen ausgestaltet sein.In alternative embodiments, the valve may in particular also be configured as a flap valve or lift valve with correspondingly temperature-dependent actuators.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 1066454 [0001] EP 1066454 [0001]
- DE 102007028493 [0002, 0002] DE 102007028493 [0002, 0002]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041841A DE102010041841A1 (en) | 2010-10-01 | 2010-10-01 | Exhaust gas treatment arrangement for internal-combustion engine, has exit gas line, where exit gas line has unit for producing pressure difference |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041841A DE102010041841A1 (en) | 2010-10-01 | 2010-10-01 | Exhaust gas treatment arrangement for internal-combustion engine, has exit gas line, where exit gas line has unit for producing pressure difference |
Publications (1)
Publication Number | Publication Date |
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DE102010041841A1 true DE102010041841A1 (en) | 2012-04-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102010041841A Withdrawn DE102010041841A1 (en) | 2010-10-01 | 2010-10-01 | Exhaust gas treatment arrangement for internal-combustion engine, has exit gas line, where exit gas line has unit for producing pressure difference |
Country Status (1)
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DE (1) | DE102010041841A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012211539A1 (en) * | 2012-07-03 | 2014-01-09 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Supercharger for combustion engine of motor car, has operating element connected with ball and valve adjustment element for setting ball valve adjusting position of ball valve adjusting element relative to valve seat |
WO2015038414A1 (en) | 2013-09-10 | 2015-03-19 | Borgwarner Inc. | Ball type pressure relieving actuator for use with turbochargers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1066454A1 (en) | 1998-12-01 | 2001-01-10 | Robert Bosch Gmbh | Secondary treatment device for the exhaust gases of an internal combustion engine |
DE102007028493A1 (en) | 2007-06-21 | 2008-12-24 | Robert Bosch Gmbh | Internal combustion engine with two-stage turbocharging and oxidation catalyst |
-
2010
- 2010-10-01 DE DE102010041841A patent/DE102010041841A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1066454A1 (en) | 1998-12-01 | 2001-01-10 | Robert Bosch Gmbh | Secondary treatment device for the exhaust gases of an internal combustion engine |
DE102007028493A1 (en) | 2007-06-21 | 2008-12-24 | Robert Bosch Gmbh | Internal combustion engine with two-stage turbocharging and oxidation catalyst |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012211539A1 (en) * | 2012-07-03 | 2014-01-09 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Supercharger for combustion engine of motor car, has operating element connected with ball and valve adjustment element for setting ball valve adjusting position of ball valve adjusting element relative to valve seat |
WO2015038414A1 (en) | 2013-09-10 | 2015-03-19 | Borgwarner Inc. | Ball type pressure relieving actuator for use with turbochargers |
EP3049650A4 (en) * | 2013-09-10 | 2017-04-19 | Borgwarner Inc. | Ball type pressure relieving actuator for use with turbochargers |
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Legal Events
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R005 | Application deemed withdrawn due to failure to request examination |