DE102006043426A1 - Internal-combustion engine i.e. diesel engine, has exhaust gas return line connected with exhaust gas line to turbine, and charge-cycle valve separated from inlet channel and outlet channel and connected with exhaust gas return line - Google Patents
Internal-combustion engine i.e. diesel engine, has exhaust gas return line connected with exhaust gas line to turbine, and charge-cycle valve separated from inlet channel and outlet channel and connected with exhaust gas return line Download PDFInfo
- Publication number
- DE102006043426A1 DE102006043426A1 DE102006043426A DE102006043426A DE102006043426A1 DE 102006043426 A1 DE102006043426 A1 DE 102006043426A1 DE 102006043426 A DE102006043426 A DE 102006043426A DE 102006043426 A DE102006043426 A DE 102006043426A DE 102006043426 A1 DE102006043426 A1 DE 102006043426A1
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- exhaust gas
- valve
- combustion engine
- egr
- internal combustion
- Prior art date
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Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008901 benefit Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0276—Actuation of an additional valve for a special application, e.g. for decompression, exhaust gas recirculation or cylinder scavenging
-
- 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
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/07—Mixed pressure loops, i.e. wherein recirculated exhaust gas is either taken out upstream of the turbine and reintroduced upstream of the compressor, or is taken out downstream of the turbine and reintroduced 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
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
-
- 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
- F02M26/24—Layout, e.g. schematics with two or more coolers
-
- 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
-
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- 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
- F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
- F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
-
- 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
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
Description
Die Erfindung betrifft eine Brennkraftmaschine mit wenigstens einem Arbeitszylinder, dem wenigstens drei Gaswechselventile zugeordnet sind, einer Abgasleitung, wenigstens einem Einlasskanal, der in ein Gaswechselventil in Form eines Einlassventils mündet, wenigstens einem Auslasskanal, der in ein Gaswechselventil in Form eines Auslassventils mündet, und mit einer Abgasrückführleitung, die mit der Abgasleitung der Brennkraftmaschine verbunden ist, gemäß dem Oberbegriff des Patentanspruchs 1. Die Erfindung betrifft ferner ein Verfahren zum Betreiben einer Brennkraftmaschine mit wenigstens einem Arbeitszylinder, dem wenigstens drei Gaswechselventile zugeordnet sind, gemäß dem Oberbegriff des Patentanspruchs 12.The The invention relates to an internal combustion engine having at least one Working cylinder associated with the at least three gas exchange valves are, an exhaust pipe, at least one inlet channel in a gas exchange valve opens in the form of an inlet valve, at least an exhaust passage opening into a gas exchange valve in the form of an exhaust valve, and with an exhaust gas recirculation line, which is connected to the exhaust pipe of the internal combustion engine, according to the preamble of patent claim 1. The invention further relates to a method for operating an internal combustion engine with at least one working cylinder, the at least three gas exchange valves are assigned, according to the preamble of claim 12.
Die
Abgasrückführung ist
eine der wesentlichen Elemente der innermotorischen NOx-Reduzierung
bei einem Dieselmotor. Man unterscheidet die externe Abgasrückführung (AGR),
wie beispielsweise aus der
Der Erfindung liegt die Aufgabe zugrunde, die Dosierung der Abgasrückführung zu verbessern.Of the Invention is based on the object, the dosage of exhaust gas recirculation improve.
Diese Aufgabe wird erfindungsgemäß durch eine Brennkraftmaschine der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen und durch ein Verfahren der o.g. Art mit den in Anspruch 12 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen beschrieben.These The object is achieved by a Internal combustion engine o.g. Type with the characterized in claim 1 Characteristics and by a procedure of the o.g. Kind of claim 12 specified characteristics solved. Advantageous embodiments of the invention are in the other claims described.
Dazu ist es bei einer Brennkraftmaschine der o.g. Art erfindungsgemäß vorgesehen, dass wenigstens eines der Gaswechselventile von den Einlass- und Auslasskanälen getrennt und mit der Abgasrückführleitung verbunden ist.To it is in an internal combustion engine o.g. Art provided according to the invention, that at least one of the gas exchange valves of the inlet and exhaust ports separated and with the exhaust gas recirculation line connected is.
Dies hat den Vorteil, dass eines der Gaswechselventile unmittelbar als AGR-Ventil dient und dadurch eine sehr mengengenaue sowie auch zyklusgenaue Zumessung von rückgeführtem Abgas für kleine und große Abgasrückführmengen möglich ist. Weiterhin ist durch die erfindungemäße Anordnung die AGR-Strecke entdrosselt. Zusätzlich lassen sich die Vorteile einer internen AGR mit kurzen Wegen und schneller Ansprechzeit mit den Vorteilen der externen AGR mit der Möglichkeit der Kühlung des rückgeführten Abgases kombinieren.This has the advantage that one of the gas exchange valves directly as EGR valve is used and therefore a very precise and accurate to the cycle Metering of recirculated exhaust gas for small and big Exhaust gas recirculation amounts is possible. Furthermore, by the erfindungemäße arrangement, the EGR route dethrottled. additionally the advantages of an internal EGR with short ways and faster response time with the advantages of external EGR with the possibility the cooling the recirculated exhaust gas combine.
Eine Abgasrückführleitung in Form einer Niederdruck-AGR-Leitung ist dadurch zu Verfügung gestellt, dass die Abgasrückführleitung stromab einer Turbine eines in der Abgasleitung angeordneten Abgasturboladers mit der Abgasleitung verbunden ist.A Exhaust gas recirculation line in the form of a low pressure EGR line is provided thereby that the exhaust gas recirculation line downstream of a turbine of an exhaust gas turbocharger arranged in the exhaust pipe connected to the exhaust pipe.
In einer beispielhaften Weiterbildung der Erfindung ist in der Abgasrückführleitung ein AGR-Kühler und/oder ein Ladeluftkühler für AGR angeordnet, wobei optional in der Abgasrückführleitung ein den AGR-Kühler und/oder den Ladeluftkühler für AGR überbrückender Bypasskanal vorgesehen ist. In der Bypassleitung optional zusätzlich ein Ventil bzw. Bypassventil angeordnet ist.In an exemplary embodiment of the invention is in the exhaust gas recirculation line an EGR cooler and / or a charge air cooler for AGR optionally arranged in the exhaust gas recirculation line, the EGR cooler and / or the intercooler for AGR bridging Bypass channel is provided. In the bypass line optional additionally Valve or bypass valve is arranged.
In einer bevorzugten Ausführungsform umfasst die Abgasrückführleitung einen Niederdruck-AGR-Kreislauf, in dem beispielsweise ein Abgaskühler und/oder eine Verdichterstufe angeordnet ist.In a preferred embodiment includes the exhaust gas recirculation line a low-pressure EGR cycle in which, for example, an exhaust gas cooler and / or a compressor stage is arranged.
In einer alternativen Ausführungsform umfasst die Abgasrückführleitung einen Hochdruck-AGR-Kreislauf, in dem beispielsweise ein Abgaskühler angeordnet ist.In an alternative embodiment includes the exhaust gas recirculation line a high-pressure EGR circuit in which, for example, an exhaust gas cooler is arranged is.
Ferner ist es bei einem Verfahren der o.g. Art erfindungsgemäß vorgesehen, dass wenigstens eines der Gaswechselventile von wenigstens einem der Arbeitszylinder als AGR-Ventil verwendete und diesem Abgas aus einer Abgasrückführleitung zugeführt wird.Further is it in a procedure of o.g. Art provided according to the invention, in that at least one of the gas exchange valves of at least one of Working cylinder used as an EGR valve and this exhaust from a Exhaust gas recirculation line supplied becomes.
Dies hat den Vorteil, dass eines der Gaswechselventile unmittelbar als AGR-Ventil dient und dadurch eine sehr mengengenaue sowie auch zyklusgenaue Zumessung von rückgeführtem Abgas für kleine und große Abgasrückführmengen möglich ist. Weiterhin ist durch die erfindungemäße Anordnung die AGR-Strecke entdrosselt. Zusätzlich lassen sich die Vorteile einer internen AGR mit kurzen Wegen und schneller Ansprechzeit mit den Vorteilen der externen AGR mit der Möglichkeit der Kühlung des rückgeführten Abgases kombinieren.This has the advantage that one of the gas exchange valves directly as EGR valve is used and therefore a very precise and accurate to the cycle Metering of recirculated exhaust gas for small and big Exhaust gas recirculation amounts is possible. Furthermore, by the erfindungemäße arrangement, the EGR route dethrottled. additionally the advantages of an internal EGR with short ways and faster response time with the advantages of external EGR with the possibility the cooling the recirculated exhaust gas combine.
Zweckmäßigerweise wird wenigstens einem der übrigen, nicht als AGR-Ventil verwendeten Gaswechselventile, welches als Einlassventil verwendet wird, ausschließlich Frischluft oder einer Grundmenge AGR zugeführt.Conveniently, at least one of the remaining, not used as EGR valve gas exchange valves, which as Intake valve is used, fresh air only or one Basic quantity supplied to EGR.
Dem als AGR-Ventil verwendeten Gaswechselventil wird beispielsweise reines oder mit Frischluft gemischtes Abgas aus einem gekühlten Niederdruck-AGR-Kreislauf zugeführt.The gas exchange valve used as EGR valve, for example, pure or with fresh air mixed exhaust gas fed from a cooled low pressure EGR cycle.
Dem als AGR-Ventil verwendeten Gaswechselventil wird beispielsweise reines oder mit Frischluft gemischtes Abgas aus einem gekühlten oder ungekühlten Hochdruck-AGR-Kreislauf zugeführt.the For example, gas exchange valve used as the EGR valve pure or mixed with fresh air exhaust gas from a cooled or uncooled High-pressure EGR circuit supplied.
Die Erfindung wird im folgenden anhand der Zeichnung näher erläutert. Diese zeigt inThe The invention will be explained in more detail below with reference to the drawing. These shows in
Die
in
In
der Frischluftzuführung
Das
jeweils vierte Gaswechselventil
In
den
Bei
der ersten Alternative gemäß
Erfindungsgemäß ist es
somit vorgesehen, bei einer Motorkonfiguration mit mehr als zwei
Ventilen pro Arbeitszylinder
- – reines Abgas aus gekühltem Niederdruck-AGR Kreislauf (evtl. mit eigener Verdichterstufe);
- – reines Abgas aus gekühltem Hochdruck-AGR Kreislauf;
- – reines Abgas aus ungekühltem Hochdruck-AGR Kreislauf;
- – Luft-Abgas Gemisch aus den vorher genannten Varianten.
- - pure exhaust gas from cooled low-pressure EGR circuit (possibly with its own compressor stage);
- Pure exhaust from cooled high pressure EGR cycle;
- - pure exhaust gas from uncooled high pressure EGR cycle;
- - Air-exhaust mixture from the aforementioned Variants.
Bei allen Varianten werden die eigentlichen Einlassventile nur noch mit Frischluft oder einer Grundmenge AGR versorgt.at In all variants, the actual intake valves are only supplied with fresh air or a basic amount of EGR.
Die
Steuerung des Gaswechselventils
Vorteilhaft
an dieser Anordnung ist neben der zyklusgenauen Dosierbarkeit der
AGR vor allem die Ausnutzung der gesamten Abgasenergie auf der Turbinenseite,
während
gegenüber
einer klassischen Niederdruckanordung nur der Frischluftmassenstrom verdichtet
werden muss. Der AGR-Massenstrom wird über das AGR-Gaswechselventil
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006043426A DE102006043426A1 (en) | 2006-09-15 | 2006-09-15 | Internal-combustion engine i.e. diesel engine, has exhaust gas return line connected with exhaust gas line to turbine, and charge-cycle valve separated from inlet channel and outlet channel and connected with exhaust gas return line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006043426A DE102006043426A1 (en) | 2006-09-15 | 2006-09-15 | Internal-combustion engine i.e. diesel engine, has exhaust gas return line connected with exhaust gas line to turbine, and charge-cycle valve separated from inlet channel and outlet channel and connected with exhaust gas return line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102006043426A1 true DE102006043426A1 (en) | 2008-03-27 |
Family
ID=39104797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102006043426A Withdrawn DE102006043426A1 (en) | 2006-09-15 | 2006-09-15 | Internal-combustion engine i.e. diesel engine, has exhaust gas return line connected with exhaust gas line to turbine, and charge-cycle valve separated from inlet channel and outlet channel and connected with exhaust gas return line |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102006043426A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013216229A1 (en) * | 2013-08-15 | 2015-02-19 | Volkswagen Aktiengesellschaft | Internal combustion engine with a plurality of cylinders and method for operating an internal combustion engine having a plurality of cylinders |
| CN105089863A (en) * | 2015-09-10 | 2015-11-25 | 谢晓宇 | Exhaust recirculation device for multi-cylinder and four-stroke internal combustion engine |
| DE102016223222A1 (en) * | 2016-11-23 | 2018-05-24 | Volkswagen Aktiengesellschaft | A spark-ignition internal combustion engine, and method for operating a spark-ignition internal combustion engine |
| US20180347514A1 (en) * | 2017-05-30 | 2018-12-06 | Hanon Systems | Exhaust gas recirculation system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10025877A1 (en) * | 2000-05-25 | 2001-12-20 | Siebe Automotive Deutschland Gmbh | Exhaust gas recirculation system |
| JP2002089377A (en) * | 2000-09-11 | 2002-03-27 | Mitsubishi Motors Corp | EGR device |
| EP1493907A2 (en) * | 2003-07-02 | 2005-01-05 | Mazda Motor Corporation | Egr control apparatus for engine |
-
2006
- 2006-09-15 DE DE102006043426A patent/DE102006043426A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10025877A1 (en) * | 2000-05-25 | 2001-12-20 | Siebe Automotive Deutschland Gmbh | Exhaust gas recirculation system |
| JP2002089377A (en) * | 2000-09-11 | 2002-03-27 | Mitsubishi Motors Corp | EGR device |
| EP1493907A2 (en) * | 2003-07-02 | 2005-01-05 | Mazda Motor Corporation | Egr control apparatus for engine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013216229A1 (en) * | 2013-08-15 | 2015-02-19 | Volkswagen Aktiengesellschaft | Internal combustion engine with a plurality of cylinders and method for operating an internal combustion engine having a plurality of cylinders |
| CN105089863A (en) * | 2015-09-10 | 2015-11-25 | 谢晓宇 | Exhaust recirculation device for multi-cylinder and four-stroke internal combustion engine |
| CN105089863B (en) * | 2015-09-10 | 2024-03-29 | 谢晓宇 | Exhaust gas recirculation device of multi-cylinder four-stroke internal combustion engine |
| DE102016223222A1 (en) * | 2016-11-23 | 2018-05-24 | Volkswagen Aktiengesellschaft | A spark-ignition internal combustion engine, and method for operating a spark-ignition internal combustion engine |
| US20180347514A1 (en) * | 2017-05-30 | 2018-12-06 | Hanon Systems | Exhaust gas recirculation system |
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| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130917 |