DE102012103832A1 - Internal combustion engine of vehicle, has compressed-air reservoir that is connected to discharge valve through withdrawal system formed by engine brake valve - Google Patents
Internal combustion engine of vehicle, has compressed-air reservoir that is connected to discharge valve through withdrawal system formed by engine brake valve Download PDFInfo
- Publication number
- DE102012103832A1 DE102012103832A1 DE102012103832A DE102012103832A DE102012103832A1 DE 102012103832 A1 DE102012103832 A1 DE 102012103832A1 DE 102012103832 A DE102012103832 A DE 102012103832A DE 102012103832 A DE102012103832 A DE 102012103832A DE 102012103832 A1 DE102012103832 A1 DE 102012103832A1
- Authority
- DE
- Germany
- Prior art keywords
- compressed air
- internal combustion
- combustion engine
- valve
- air tank
- 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.)
- Ceased
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 60
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Images
Classifications
-
- 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
- F02B21/00—Engines characterised by air-storage chambers
-
- 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
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
-
- 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
- F02M26/37—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with temporary storage of recirculated exhaust gas
-
- 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
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)
- Supercharger (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Die Erfindung betrifft eine Brennkraftmaschine mit mehreren Zylindern, mit einem Einlasssystem mit einem vorzugsweise durch eine Abgasturbine angetriebenen Verdichter und einem Auslasssystem, mit einem Abgasrückführsystem mit zumindest einer Abgasrückführleitung zur Rückführung von Gas aus dem Auslasssystem in das Einlasssystem, wobei Gas mit Unterstützung eines einen ersten Druckluftbehälter aufweisenden Druckluftsystems über eine Venturieinrichtung rückführbar ist, wobei der erste Druckluftbehälter über zumindest ein separates Entnahmeventil aufweisendes Entnahmesystem mit zumindest einem Arbeitsraum eines Zylinders strömungsverbindbar ist, wobei von jedem Entnahmeventil eine Entnahmeleitung ausgeht, und die Entnahmeleitungen verschiedener Zylinder miteinander verbunden sind. Weiters betrifft die Erfindung ein Verfahren zum Betreiben einer Brennkraftmaschine mit mehreren Zylindern, mit einem Einlasssystem mit einem vorzugsweise durch eine Abgasturbine angetriebenen Verdichter und einem Auslasssystem, mit einem Abgasrückführsystem mit zumindest einer Abgasrückführleitung zur Rückführung von Gas aus dem Auslasssystem in das Einlasssystem, wobei Gas mit Unterstützung eines einen ersten Druckluftbehälter aufweisenden Druckluftsystems über eine Venturieinrichtung rückgeführt wird, wobei unter Druck stehendes Gas über zumindest ein separates Entnahmeventil aus einem Arbeitsraum zumindest eines Zylinders in den Druckluftbehälter geleitet wird. The invention relates to an internal combustion engine having a plurality of cylinders, an intake system having a compressor and an exhaust system, preferably driven by an exhaust gas turbine, with an exhaust gas recirculation system having at least one exhaust gas recirculation line for returning gas from the exhaust system to the intake system, gas assisting a first compressed air tank having compressed air system via a Venturieinrichtung is traceable, wherein the first compressed air tank via at least one separate removal valve exhibiting removal system with at least one working space of a cylinder is strömungsverbindbar, wherein each withdrawal valve emanates a discharge line, and the extraction lines of different cylinders are interconnected. The invention further relates to a method for operating an internal combustion engine having a plurality of cylinders, comprising an intake system with a preferably driven by an exhaust gas turbine compressor and an exhaust system, with an exhaust gas recirculation system with at least one exhaust gas recirculation line for returning gas from the exhaust system in the intake system, wherein gas Support of a first compressed air tank having compressed air system is recycled via a Venturieinrichtung, wherein pressurized gas is passed via at least one separate removal valve from a working space of at least one cylinder in the compressed air tank.
Aus der
Aus der
Die
Aus den Veröffentlichungen
Aus der
Aus der
Aus der
Weiters ist aus der
Aufgabe der Erfindung ist es, die Emissionen bei einer Brennkraftmaschine zu reduzieren. The object of the invention is to reduce emissions in an internal combustion engine.
Erfindungsgemäß wird dies dadurch erreicht, dass zumindest ein Entnahmeventil durch ein Motorbremsventil gebildet ist und die Entnahmeleitungen in ein mit dem Druckluftbehälter strömungsverbindbares Sammelvolumen einmünden und unter Druck stehendes Gas zumindest während eines Motorbremsbetriebes der Brennkraftmaschine aus zumindest einem Arbeitsraum in den Druckluftbehälter überströmbar ist. According to the invention this is achieved in that at least one bleed valve is formed by an engine brake valve and open the discharge lines in a flow-connectable with the compressed air tank collecting volume and pressurized gas, at least during an engine braking operation of the internal combustion engine from at least one working space in the compressed air tank can be overflowed.
Während des Motorbremsbetriebes wird unter Druck stehendes Abgas bzw. Luft aus den Arbeitsräumen der Zylinder über die durch Motorbremsventile gebildeten Entnahmeventile und die Entnahmeleitungen in das Sammelvolumen geführt. Das unter Druck stehende Gas wird weiters über das Überströmventil in den Druckluftbehälter geleitet und hier gespeichert. Das im Druckluftbehälter gespeicherte Abgas steht bei Bedarf für eine druckluftunterstützte Abgasrückführung zur Verfügung. During engine braking operation, pressurized exhaust gas or air from the working spaces of the cylinders is guided into the collecting volume via the removal valves and the withdrawal lines formed by engine brake valves. The pressurized gas is further passed through the overflow valve in the compressed air tank and stored here. If necessary, the exhaust gas stored in the compressed air tank is available for compressed air-assisted exhaust gas recirculation.
Vorzugsweise ist dabei vorgesehen, dass zwischen der Sammelleitung und dem Druckluftbehälter ein vorzugsweise durch ein Rückschlagventil gebildetes Überströmventil angeordnet ist, wobei es besonders vorteilhaft ist, wenn das unter Druck stehende Gas vor Einleiten in den Luftdruckbehälter gekühlt wird. Zur Kühlung des Gases kann eine Kühleinrichtung im Bereich des Sammelvolumens und/ oder zwischen dem Sammelvolumen und dem Druckluftbehälter angeordnet ein. Durch die Kühleinrichtung kann der Erfüllungsgrad des Druckluftbehälters erhöht werden. Preferably, it is provided that between the manifold and the compressed air tank, a preferably formed by a check valve overflow valve is arranged, and it is particularly advantageous if the pressurized gas is cooled before being introduced into the air pressure vessel. For cooling the gas, a cooling device can be arranged in the region of the collecting volume and / or between the collecting volume and the compressed-air container. By the cooling device, the degree of fulfillment of the compressed air tank can be increased.
Somit werden die während eines Bremsvorganges abgedrosselten Abgasmengen im Sammelvolumen gesammelt und gekühlt und in den Druckluftbehälter gespeichert. Somit kann unter Druck stehendes Abgas auf einfache Weise gespeichert werden. Ein elektrisch oder mechanisch betriebener Kompressor ist somit für die druckluftunterstützte Abgasrückführung nicht erforderlich. Ein für andere Zwecke – zum Beispiel für ein druckluftunterstütztes Bremssystem – im Fahrzeug notwendiger Kompressor braucht somit nicht für größere Antriebsleistung ausgelegt werden. Genauso kann ein separater Kompressor für die druckluftunterstützte Abgasrückführung entfallen. Die Speicherung des unter Druck stehenden Abgases ermöglicht eine besonders einfache und energetisch günstige Aufladung des Druckluftsystems. Der Druckluftspeicher ist über eine Druckluftleitung mit der Venturieinrichtung strömungsverbunden und ermöglicht somit eine Abgasrückführung auch bei ungünstigen Differenzdruckverhältnissen zwischen Abgasstrang und Ladeluftstrang. Thus, the throttled during a braking process exhaust gas volumes are collected in the collecting volume and cooled and stored in the compressed air tank. Thus, pressurized exhaust gas can be easily stored. An electrically or mechanically operated compressor is thus not required for the compressed air-assisted exhaust gas recirculation. A for other purposes - for example, a compressed air assisted brake system - necessary in the vehicle compressor does not need to be designed for greater drive power. Similarly, a separate compressor for the compressed air-assisted exhaust gas recirculation omitted. The storage of the pressurized exhaust gas allows a particularly simple and energetically favorable charging of the compressed air system. The compressed air reservoir is connected via a compressed air line with the venturi flow and thus enables exhaust gas recirculation even with unfavorable differential pressure conditions between the exhaust system and charge air line.
Somit kann auf möglichst einfache und energiesparende Weise eine Abgasrückführung auch bei ungünstigen Druckverhältnissen durchgeführt, und somit die Emissionen, insbesondere die Stickoxidemissionen, der Berennkraftmaschine wesentlich verringert werden. Thus, an exhaust gas recirculation can be carried out in the simplest and energy-saving manner, even under unfavorable pressure conditions, and thus the emissions, in particular the nitrogen oxide emissions, the Berennkraftmaschine be substantially reduced.
Die Erfindung wird im Folgenden anhand der Figuren näher erläutert. Es zeigen schematisch: The invention will be explained in more detail below with reference to FIGS. They show schematically:
Die
Um ein rasches Ansprechverhalten des Verdichters
Im Abgasströmungsweg
Zur Füllung des Druckluftbehälters
Wie in
Vom Druckluftsystem sind in
Über das Sammelvolumen
Im Motorbremsbetrieb der Brennkraftmaschine
Kurz nach dem Schließen des Einlassventils kann das Entnahmeventil
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
- DE 4319380 C2 [0002] DE 4319380 C2 [0002]
- WO 08/022769 A1 [0003] WO 08/022769 A1 [0003]
- WO 98/32964 A1 [0004] WO 98/32964 A1 [0004]
- EP 1836381 A1 [0005] EP 1836381 A1 [0005]
- DE 10144471 A1 [0005] DE 10144471 A1 [0005]
- DE 10333480 A1 [0005] DE 10333480 A1 [0005]
- FR 2836181 A1 [0006] FR 2836181 A1 [0006]
- AT 507481 A1 [0007] AT 507481 A1 [0007]
- DE 102005001757 A1 [0008] DE 102005001757 A1 [0008]
- DE 112004000310 B3 [0009] DE 112004000310 B3 [0009]
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA765/2011A AT511070B1 (en) | 2011-05-26 | 2011-05-26 | INTERNAL COMBUSTION ENGINE WITH SEVERAL CYLINDERS |
AT765/2011 | 2011-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012103832A1 true DE102012103832A1 (en) | 2012-11-29 |
Family
ID=46799845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102012103832A Ceased DE102012103832A1 (en) | 2011-05-26 | 2012-05-02 | Internal combustion engine of vehicle, has compressed-air reservoir that is connected to discharge valve through withdrawal system formed by engine brake valve |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT511070B1 (en) |
DE (1) | DE102012103832A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2520838A (en) * | 2014-11-17 | 2015-06-03 | Daimler Ag | Power unit for a vehicle |
WO2016083641A1 (en) * | 2014-11-26 | 2016-06-02 | Denersa, S. L. | Compound engine |
EP3184790A1 (en) * | 2015-12-21 | 2017-06-28 | Robert Bosch Gmbh | Internal combustion engine and method for operating such engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9382838B2 (en) * | 2012-05-17 | 2016-07-05 | Ford Global Technologies, Llc | Boost reservoir and throttle coordination |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998032964A1 (en) | 1997-01-27 | 1998-07-30 | Alliedsignal Inc. | Exhaust gas recirculation system employing a fluidic pump |
DE4319380C2 (en) | 1992-06-12 | 1998-12-17 | Avl Verbrennungskraft Messtech | Internal combustion engine with an exhaust gas turbocharger |
DE10144471A1 (en) | 2000-09-12 | 2002-03-28 | Avl List Gmbh | Multi-cylinder engine with engine braking device has tubular pressure container with pressure regulating valve in which channels from brake valve come out |
FR2836181A1 (en) | 2002-02-15 | 2003-08-22 | Peugeot Citroen Automobiles Sa | Operating system for vehicle internal combustion engine, comprises use of one or more cylinders as compressors during light load such that a reservoir is charged with compressed gas for later use |
DE10333480A1 (en) | 2002-07-26 | 2004-02-26 | Avl List Gmbh | Operating process for a multi cylinder combustion engine uses some cylinders as compressors and feeds compressed air into other firing cylinders during the start phase |
DE102005001757A1 (en) | 2005-01-14 | 2006-07-20 | Daimlerchrysler Ag | Internal combustion engine with a cylinder associated with the gas pressure vessel and method for operating the internal combustion engine |
DE112004000310B3 (en) | 2003-02-20 | 2008-01-17 | Avl List Gmbh | Engine braking system of a multi-cylinder internal combustion engine with cooled intermediate pipe for gas exchange between cylinders during engine braking |
WO2008022769A1 (en) | 2006-08-22 | 2008-02-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Device and method for supplying fresh air to a turbocharged reciprocating-piston internal combustion engine |
AT507481A1 (en) | 2009-10-15 | 2010-05-15 | Avl List Gmbh | Internal-combustion engine has inlet system with compressor propelled by exhaust-gas turbine and outlet system with exhaust re-conducting system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849914C1 (en) * | 1998-10-29 | 1999-11-04 | Daimler Chrysler Ag | Internal combustion engine with auxiliary inlet valve |
-
2011
- 2011-05-26 AT ATA765/2011A patent/AT511070B1/en active
-
2012
- 2012-05-02 DE DE102012103832A patent/DE102012103832A1/en not_active Ceased
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4319380C2 (en) | 1992-06-12 | 1998-12-17 | Avl Verbrennungskraft Messtech | Internal combustion engine with an exhaust gas turbocharger |
WO1998032964A1 (en) | 1997-01-27 | 1998-07-30 | Alliedsignal Inc. | Exhaust gas recirculation system employing a fluidic pump |
DE10144471A1 (en) | 2000-09-12 | 2002-03-28 | Avl List Gmbh | Multi-cylinder engine with engine braking device has tubular pressure container with pressure regulating valve in which channels from brake valve come out |
FR2836181A1 (en) | 2002-02-15 | 2003-08-22 | Peugeot Citroen Automobiles Sa | Operating system for vehicle internal combustion engine, comprises use of one or more cylinders as compressors during light load such that a reservoir is charged with compressed gas for later use |
DE10333480A1 (en) | 2002-07-26 | 2004-02-26 | Avl List Gmbh | Operating process for a multi cylinder combustion engine uses some cylinders as compressors and feeds compressed air into other firing cylinders during the start phase |
DE112004000310B3 (en) | 2003-02-20 | 2008-01-17 | Avl List Gmbh | Engine braking system of a multi-cylinder internal combustion engine with cooled intermediate pipe for gas exchange between cylinders during engine braking |
DE102005001757A1 (en) | 2005-01-14 | 2006-07-20 | Daimlerchrysler Ag | Internal combustion engine with a cylinder associated with the gas pressure vessel and method for operating the internal combustion engine |
EP1836381A1 (en) | 2005-01-14 | 2007-09-26 | DaimlerChrysler AG | Internal combustion engine comprising a gas pressure container which is associated with the cylinders and method for the operation thereof |
WO2008022769A1 (en) | 2006-08-22 | 2008-02-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Device and method for supplying fresh air to a turbocharged reciprocating-piston internal combustion engine |
AT507481A1 (en) | 2009-10-15 | 2010-05-15 | Avl List Gmbh | Internal-combustion engine has inlet system with compressor propelled by exhaust-gas turbine and outlet system with exhaust re-conducting system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2520838A (en) * | 2014-11-17 | 2015-06-03 | Daimler Ag | Power unit for a vehicle |
WO2016083641A1 (en) * | 2014-11-26 | 2016-06-02 | Denersa, S. L. | Compound engine |
EP3184790A1 (en) * | 2015-12-21 | 2017-06-28 | Robert Bosch Gmbh | Internal combustion engine and method for operating such engine |
Also Published As
Publication number | Publication date |
---|---|
AT511070B1 (en) | 2012-09-15 |
AT511070A4 (en) | 2012-09-15 |
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