DE10327305A1 - Internal combustion engine with secondary air shower - Google Patents
Internal combustion engine with secondary air shower Download PDFInfo
- Publication number
- DE10327305A1 DE10327305A1 DE10327305A DE10327305A DE10327305A1 DE 10327305 A1 DE10327305 A1 DE 10327305A1 DE 10327305 A DE10327305 A DE 10327305A DE 10327305 A DE10327305 A DE 10327305A DE 10327305 A1 DE10327305 A1 DE 10327305A1
- Authority
- DE
- Germany
- Prior art keywords
- secondary air
- internal combustion
- combustion engine
- outlet channel
- channel
- 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- Withdrawn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
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
- F02F1/4271—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels with an exhaust liner
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0835—Hydrocarbons
-
- 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
- F01N3/30—Arrangements for supply of additional air
- F01N3/34—Arrangements for supply of additional air using air conduits or jet air pumps, e.g. near the engine exhaust port
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Es wird eine Brennkraftmaschine für ein Kraftfahrzeug vorgeschlagen, mit einem Brennraum (2), dem ein Einlasskanal zur Zufuhr von Brenngas, ein Auslasskanal (3) zur Abfuhr von Verbrennungsprodukten sowie eine Kraftstoffversorgungseinheit zur Zufuhr von flüssigem Kraftstoff zugeordnet ist. DOLLAR A Erfindungsgemäß ist bei der Brennkraftmaschine in dem Auslasskanal (3) ein Adsorptions- und/oder ein Absorptionselement zur Zwischenspeicherung von unverbranntem oder teilverbranntem Kraftstoff angeordnet. Insbesondere sind im Auslasskanal ein perforiertes Einsatzelement und/oder eine Adsorptions- und/oder Absorptionslage vorgesehen. DOLLAR A Anwendung in Kraftfahrzeugen, insbesondere Personenkraftwagen.An internal combustion engine for a motor vehicle is proposed, with a combustion chamber (2), which is assigned an inlet channel for the supply of fuel gas, an outlet channel (3) for the removal of combustion products, and a fuel supply unit for the supply of liquid fuel. DOLLAR A According to the invention in the internal combustion engine in the outlet channel (3) is arranged an adsorption and / or an absorption element for the intermediate storage of unburned or partially combusted fuel. In particular, a perforated insert element and / or an adsorption and / or absorption layer are provided in the outlet channel. DOLLAR A application in motor vehicles, especially passenger cars.
Description
Die Erfindung betrifft eine Brennkraftmaschine für ein Kraftfahrzeug mit einem Brennraum, dem ein Einlasskanal zur Zufuhr von Brenngas, ein Auslasskanal zur Abfuhr von Verbrennungsprodukten sowie eine Kraftstoffversorgungseinheit zur Zufuhr von flüssigem Kraftstoff zugeordnet sind.The The invention relates to an internal combustion engine for a motor vehicle with a Combustion chamber, which an inlet channel for supplying fuel gas, an outlet channel for the removal of combustion products as well as a fuel supply unit for the supply of liquid Fuel are assigned.
Beim Kaltstart wird einem Verbrennungsmotor häufig mehr Kraftstoff zugeführt als er verbrennen kann, zusätzlich werden Kraftstoffbestandteile in Spalten zwischen Ventilen und Ventilsitzringen, in Spalten an Zündkerzen und am Feuersteg von der Teilnahme an der Verbrennung abgehalten. Entsprechend werden unverbrannte Kraftstoffbestandteile mit dem Abgas der Brennkraftmaschine aus den Brennräumen entlassen. Sie schlagen sich wenigstens teilweise als Wandbenetzung an gasführenden Teilen des Auslasskanals nieder und bilden einen Wandfilm mit unterschiedlicher Ausprägung, je nach Oberflächentemperatur, Oberflächenrauhigkeit und Umgebungsbedingungen (Druck, Temperatur etc.) im Auslasskanal.At the Cold start is often fed more fuel to an internal combustion engine than he can burn, in addition are fuel components in gaps between valves and valve seat rings, in columns of spark plugs and held off on the catwalk from participating in the burn. Accordingly, unburned fuel components with the Discharge the exhaust gas of the internal combustion engine from the combustion chambers. They hit at least partially as wall wetting on gas-carrying parts down the outlet channel and form a wall film with different expression, depending on the surface temperature, surface roughness and ambient conditions (pressure, temperature, etc.) in the exhaust duct.
Es ist bekannt, im Abgastrakt eine Nachreaktion von im Abgas vorhandenen Kraftstoffbestandteilen zu ermöglichen, wobei sowohl Katalysatoren als auch eine Sekundärlufteinblasung zur Anwendung kommen. Eine Sekundärlufteinblasung, die in einem vom Ventilsitz beabstandeten Bereich stattfindet weist allerdings eine reduzierte Wirksamkeit auf, sofern sie nicht im Zusammenwirken mit einem aufwändigen Speicherkatalysator eingesetzt wird.It is known in the exhaust tract a post-reaction of existing in the exhaust gas To enable fuel components where both catalysts and a secondary air injection are used. A secondary air injection, which takes place in a region spaced from the valve seat However, a reduced effectiveness, if they do not work together with an elaborate Storage catalyst is used.
Aufgabe der Erfindung ist es, mit möglichst einfachen Mitteln eine Brennkraftmaschine für ein Kraftfahrzeug mit insbesondere im Kaltstartbetrieb reduzierten Emissionen an unverbrannten oder teilverbrannten Kraftstoffbestandteilen bereitzustellen.task The invention is to be as simple as possible Means an internal combustion engine for a motor vehicle with particular in cold start mode reduced emissions of unburned or to provide partially combusted fuel components.
Diese Aufgabe wird durch eine Brennkraftmaschine mit den Merkmalen des Anspruchs 1 gelöst.These Task is by an internal combustion engine with the characteristics of Claim 1 solved.
Die erfindungsgemäße Brennkraftmaschine zeichnet sich aus durch ein in dem Auslasskanal angeordnetes Sekundärluftleitelement zur Bildung eines wenigstens teilweise parallel zum Auslasskanal verlaufenden Sekundärluftkanals. Durch den somit gebildeten Sekundärluftkanal ist zusätzliche Frischluft oder ggf. auch rückgeführtes Abgas in den Auslasskanal einbringbar und mit dem Abgas vermischbar, wobei mittels der Sekundärluft das heiße Abgas einerseits gekühlt und andererseits weiter chemisch umgesetzt werden kann. Ferner können auch im Zylinderkopf angeordnete Bauteile mit der Sekundärluft effektiv gekühlt werden. Insbesondere ist der Sekundärluftkanal vorgesehen, um Sekundärluft möglichst nahe an ein entsprechendes Auslassventil bzw. dessen Ventilsitz heranzuführen.The inventive internal combustion engine records is characterized by a arranged in the outlet channel secondary air guide for forming an at least partially parallel to the outlet channel Secondary air channel. By thus formed secondary air duct is additional Fresh air or possibly also recirculated exhaust gas introduced into the outlet channel and mixable with the exhaust gas, wherein by means of the secondary air the hot Exhaust cooled on the one hand and on the other hand can be further chemically reacted. Further, you can also in the cylinder head arranged components with the secondary air effectively chilled become. In particular, the secondary air duct is provided in order to keep secondary air as close as possible to introduce a corresponding outlet valve or its valve seat.
In Ausgestaltung der Erfindung ist das Sekundärluftleitelement als separates, vorzugsweise perforiertes Einsatzelement ausgestaltet und in den Auslasskanal derart eingebracht, dass hinter dem Einsatzelement der Sekundärluftkanal gebildet ist. Das Einsatzelement trennt somit das in Richtung Abgastrakt (nach aussen) strömende Abgas von der Richtung Ventilsitz (nach innen) strömenden Frischluft. Dem Sekundärluftkanal ist Luft beispielsweise über eine Bohrung im Zylinderkopf zuführbar.In Embodiment of the invention is the secondary air guide as a separate, preferably perforated insert element configured and in the outlet channel inserted so that behind the insert element of the secondary air duct is formed. The insert separates thus in the direction of the exhaust tract (outward) flowing Exhaust gas from the direction of valve seat (inward) flowing fresh air. The secondary air duct For example, air is over a bore in the cylinder head fed.
In weiterer Ausgestaltung der Erfindung ist das Sekundärluftleitelement als Perforation eine Vielzahl von insbesondere runden und/oder ovalen Öffnungen aufweist, durch die breitgefächert Sekundärluft zum Abgas zumischbar ist. Dadurch ist eine Art Sekundärluftbrause mit guten Durchmischungseigenschaften ermöglicht.In Another embodiment of the invention is the Sekundärluftleitelement as a perforation a variety of particular round and / or oval openings has, by the wide-ranging secondary air is admixed to the exhaust gas. This is a kind of secondary air shower with good mixing properties.
In weiterer Ausgestaltung der Erfindung ist das Sekundärluftleitelement derart zylindrisch ausgebildet und in den Auslasskanal eingebracht, dass zwischen Sekundärluftleitelement und Auslasskanalwand ein Sekundärluftkanal mit ringförmigem Querschnitt gebildet ist. Auf diese Weise lässt sich die Abgasströmung vollständig mit dem Sekundärluftkanal ummanteln. Sekundärluft und/oder rückgeführtes Abgas kann allseitig der Abgasströmung zugeführt werden.In Another embodiment of the invention is the Sekundärluftleitelement so cylindrical and introduced into the outlet channel, that between secondary air guide and outlet channel wall, a secondary air channel with annular Cross section is formed. In this way, the exhaust gas flow completely with encase the secondary air duct. secondary air and / or recirculated exhaust gas can be on all sides of the exhaust flow supplied become.
In weiterer Ausgestaltung der Erfindung sind an dem Sekundärluftleitelement Strömungsleitelemente und/oder Turbulenzpromotoren angeordnet sind. Dadurch ergibt sich eine besonders gute Durchmischung von Sekundärluft und Abgas.In Further embodiment of the invention are on the Sekundärluftleitelement flow guide and / or turbulence promoters are arranged. This results a particularly good mixing of secondary air and exhaust gas.
In weiterer Ausgestaltung der Erfindung ist mit Hilfe des Sekundärluftleitelementes im Auslasskanal eine Engstelle, insbesondere eine Düse, für die Abgasströmung der Brennkraftmaschine hergestellt. An der Engstelle ergibt sich eine erhöhte Strömungsgeschwindigkeit der Abgasströmung, und ein verminderter statischer Druck, so dass Frischluft aus dem Sekundärluftkanal in die Abgasströmung einsaugbar ist.In Another embodiment of the invention is with the help of Sekundärluftleitelementes in the outlet channel a bottleneck, in particular a nozzle, for the exhaust gas flow of Internal combustion engine produced. At the bottleneck results in a increased flow rate the exhaust gas flow, and a reduced static pressure, allowing fresh air from the secondary air duct in the exhaust gas flow is sucked.
Weitere Merkmale und Merkmalskombinationen ergeben sich aus der Beschreibung sowie den Zeichnungen. Konkrete Ausführungsbeispiele der Erfindung sind in den Zeichnungen vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigenFurther Features and combinations of features result from the description as well as the drawings. Specific embodiments of the invention are shown in simplified form in the drawings and in the following Description explained in more detail. It demonstrate
Eine
erfindungsgemäße Brennkraftmaschine
In
Das
Sekundärluftleitelement
Im
Betrieb der Brennkraftmaschine
Die
Perforationen
Dabei
ergeben sich zwischen dem gekühlten Zylinderkopf
Zur
Modifikation dieser Variante wird erfindungsgemäß vorgeschlagen, an dem Sekundärluftleitelement
Ein
weiter modifiziertes Ausführungsbeispiel ist
in
Die Sekundärluftströmung lässt sich auf die beschriebene Weise mit besonders einfachen Mitteln und besonders effektiv und gezielt dem Abgasstrom zumischen. Durch die vorgeschlagenen Maßnahmen lassen sich teil- oder unverbrannt aus einem Brennraum der Brennkraftmaschine ausgestoßene Kraftstoffbestandteile mit Hilfe der Sekundärluft nachreagieren, d.h. chemisch umsetzen. Somit werden Kraftstoffemissionen insbesondere beim Kaltstart der Brennkraftmaschine nachreagiert und wirkungsvoll beseitigt. Es ist eine Brennkraftmaschine mit hinsichtlich Kraftstoff- bzw. Kohlenwasserstoffemissionen nennenswert verbessertem Kaltstartverhalten bereitgestellt.The Secondary air flow can be in the manner described with particularly simple means and especially effectively and specifically mix the exhaust flow. By the proposed Leave measures Partially or unburned from a combustion chamber of the internal combustion engine expelled Reacting fuel components with the aid of secondary air, i. chemical implement. Thus, fuel emissions are especially at cold start the internal combustion engine afterreacted and effectively eliminated. It is an internal combustion engine with regard to Hydrocarbon emissions provided significantly improved cold start behavior.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10327305A DE10327305A1 (en) | 2003-06-18 | 2003-06-18 | Internal combustion engine with secondary air shower |
| PCT/EP2004/006412 WO2004111403A1 (en) | 2003-06-18 | 2004-06-15 | Internal combustion engine with secondary air injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10327305A DE10327305A1 (en) | 2003-06-18 | 2003-06-18 | Internal combustion engine with secondary air shower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10327305A1 true DE10327305A1 (en) | 2005-01-05 |
Family
ID=33495095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10327305A Withdrawn DE10327305A1 (en) | 2003-06-18 | 2003-06-18 | Internal combustion engine with secondary air shower |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10327305A1 (en) |
| WO (1) | WO2004111403A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009036476A1 (en) | 2007-09-20 | 2009-03-26 | Roland Kirchberger | Internal combustion engine |
| DE102008033750A1 (en) | 2008-07-18 | 2010-01-21 | Audi Ag | Internal combustion engine i.e. four-stroke engine, operating method for motor vehicle, involves bringing air into cylinder chamber during combustion cycles twice over pre-determined time interval for conveying sputtering of fuel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009001007U1 (en) | 2009-01-28 | 2010-06-17 | Friedrich Boysen Gmbh & Co. Kg | Secondary air system |
| CN204357541U (en) * | 2014-12-31 | 2015-05-27 | 安徽江淮汽车股份有限公司 | Secondary air injection tube and secondary air injection system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3468124A (en) * | 1967-04-25 | 1969-09-23 | Mykola Hraboweckyj | Method and apparatus for consuming combustible gases in engine exhaust gases |
| DE4118848A1 (en) * | 1991-06-07 | 1992-12-10 | Audi Ag | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE |
| DE4209684A1 (en) * | 1992-03-25 | 1993-09-30 | Porsche Ag | Device for influencing the flow in gas exchange channels of an internal combustion engine |
| US5419125A (en) * | 1992-09-21 | 1995-05-30 | Calsonic Corporation | Exhaust-gas recombustion system |
| DE10215914A1 (en) * | 2002-04-11 | 2003-10-30 | Daimler Chrysler Ag | Valve-controlled internal combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4096690A (en) * | 1976-12-27 | 1978-06-27 | Ford Motor Company | Louvered exhaust port liner |
| US6205777B1 (en) * | 1991-01-09 | 2001-03-27 | Precision Combustion, Inc. | Catalytic method |
| EP0640752B1 (en) * | 1993-08-27 | 1998-02-04 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust gas arrangement for an internal combustion engine |
| DE19938359B4 (en) * | 1999-08-13 | 2008-04-03 | Audi Ag | Exhaust manifold for a multi-cylinder internal combustion engine with secondary air supply |
| DE10005909A1 (en) * | 2000-02-10 | 2001-08-16 | Audi Ag | Device for regenerating, heating and desulfurizing the NOx storage catalytic converter of an internal combustion engine |
-
2003
- 2003-06-18 DE DE10327305A patent/DE10327305A1/en not_active Withdrawn
-
2004
- 2004-06-15 WO PCT/EP2004/006412 patent/WO2004111403A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3468124A (en) * | 1967-04-25 | 1969-09-23 | Mykola Hraboweckyj | Method and apparatus for consuming combustible gases in engine exhaust gases |
| DE4118848A1 (en) * | 1991-06-07 | 1992-12-10 | Audi Ag | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE |
| DE4209684A1 (en) * | 1992-03-25 | 1993-09-30 | Porsche Ag | Device for influencing the flow in gas exchange channels of an internal combustion engine |
| US5419125A (en) * | 1992-09-21 | 1995-05-30 | Calsonic Corporation | Exhaust-gas recombustion system |
| DE10215914A1 (en) * | 2002-04-11 | 2003-10-30 | Daimler Chrysler Ag | Valve-controlled internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009036476A1 (en) | 2007-09-20 | 2009-03-26 | Roland Kirchberger | Internal combustion engine |
| DE102008033750A1 (en) | 2008-07-18 | 2010-01-21 | Audi Ag | Internal combustion engine i.e. four-stroke engine, operating method for motor vehicle, involves bringing air into cylinder chamber during combustion cycles twice over pre-determined time interval for conveying sputtering of fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004111403A1 (en) | 2004-12-23 |
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|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |