DE19621635B4 - Diesel engine - Google Patents
Diesel engine Download PDFInfo
- Publication number
- DE19621635B4 DE19621635B4 DE19621635A DE19621635A DE19621635B4 DE 19621635 B4 DE19621635 B4 DE 19621635B4 DE 19621635 A DE19621635 A DE 19621635A DE 19621635 A DE19621635 A DE 19621635A DE 19621635 B4 DE19621635 B4 DE 19621635B4
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- combustion engine
- engine according
- diesel internal
- cylinder
- 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.)
- Expired - Lifetime
Links
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
-
- 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
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Diesel-Brennkraftmaschine, mit
– zwei Einlaßkanälen (8), zwei Auslaßkanälen (8'), vier Ventilen (7, 7'), einer Einspritzdüse (11) und einem Kolben (2) pro Zylinder (1), wobei
– die Achsen der Ventile (7, 7') zur Achse des Zylinders (1) im wesentlichen parallel angeordnet sind,
– die Einspritzdüse (11) zur Achse des Zylinders (1) im wesentlichen parallel sowie zur Querschnittsfläche des Zylinders (1) im wesentlichen mittig angeordnet ist, und
– der eine Einlaßkanal (8) als Drallkanal (9) und der andere Einlaßkanal (8) als Füllkanal (10) ausgebildet ist, dadurch gekennzeichnet, daß
– der Kolben (2) eine Brennraummulde (3) mit eingezogenem Muldenrand (4) aufweist und die Einspritzdüse (11), mit einem Einspritzwinkel von 140° bis 155° ausgebildet ist, so dass die Sprühstrahlen der Einspritzdüse (11) an der Innenseite des Muldenrandes (4)tangential auftreffen.Diesel engine, with
- Two inlet channels (8), two outlet channels (8 '), four valves (7, 7'), an injection nozzle (11) and a piston (2) per cylinder (1), wherein
- The axes of the valves (7, 7 ') are arranged essentially parallel to the axis of the cylinder (1),
- The injection nozzle (11) to the axis of the cylinder (1) is substantially parallel and to the cross-sectional area of the cylinder (1) is arranged substantially centrally, and
- The one inlet channel (8) is designed as a swirl channel (9) and the other inlet channel (8) as a filling channel (10), characterized in that
- The piston (2) has a combustion chamber bowl (3) with a recessed bowl rim (4) and the injection nozzle (11) is designed with an injection angle of 140 ° to 155 °, so that the spray jets of the injection nozzle (11) on the inside of the Hit the trough edge (4) tangentially.
Description
Die vorliegende Erfindung betrifft eine Diesel-Brennkraftmaschine nach dem Oberbegriff des Patentanspruchs 1, nach dem Direkteinspritzverfahren arbeitet. Derartige Brennkraftmaschinen zeichnen sich durch einen besonders günstigen Kraftstoffverbrauch aus.The present invention relates to a diesel internal combustion engine according to the preamble of the claim 1, works according to the direct injection method. Such internal combustion engines are characterized by particularly low fuel consumption out.
Aus der
Probleme bereiten bei diesem Stand der Technik jedoch die relativ rauhen Verbrennungsgeräusche. Außerdem sind die Anforderungen an die Wirtschaftlichkeit und die Umweltfreundlichkeit des Betriebs derartiger Brennkraftmaschinen inzwischen deutlich gestiegen.Problems with this stand technology, however, the relatively harsh combustion noises. Also are the requirements for economy and environmental friendliness the operation of such internal combustion engines is now clear gone up.
Aus der WO 86/ 05237 A1 ist ein solcher Diesel-Motor gemäß den Merkmalen des Oberbegriffs bekannt.Such is known from WO 86/05237 A1 Diesel engine according to the characteristics known of the generic term.
Aus der
Es ist daher Aufgabe der vorliegenden Erfindung, eine verbesserte Diesel-Brennkraftmaschine zu konzipieren, bei welcher das Geräuschniveau weiter gesenkt und der Kraftstoffverbrauch weiter verringert werden kann. Zudem soll diese Brennkraftmaschine kostengünstig herstellbar sein.It is therefore the task of the present Invention to design an improved diesel engine which is the noise level further reduced and fuel consumption further reduced can. In addition, this internal combustion engine should be inexpensive to manufacture his.
Diese Aufgabe wird gelöst durch die Diesel-Brennkraftmaschine gemäß dem Patentanspruch 1. Denn mit dieser Merkmalskombination ist es. möglich, zum einen die Akustik und zum anderen die Verbrauchswerte der Diesel-Brennkraftmaschine positiv zu beeinflussen. Entscheidend sind dabei die Abstimmungen der einzelnen Komponenten aufeinander. So ist durch die Aufteilung der Einlaßkanäle in einen Drallkanal und in einen Füllkanal in allen Drehzahlbereichen eine gute Verwirbelung der Luft und eine gute Füllung des Brennraumes gewährleistet. Daher kann die Brennkraftmaschine in jedem Drehzahlbereich mit einem außergewöhnlich hohen Wirkungsgrad arbeiten. Aufgrund der speziellen Anordnung und Ausgestaltung der Einspritzdüse in Verbindung mit der zuvor beschriebenen Verwirbelung und Füllung ist dabei eine optimale Luft-Diesel-Gemischbildung gewährleistet. Unterstützt wird die Luft-Diesel-Gemischbildung durch die besondere Ausgestaltung des Kolbens, wonach dieser eine Brennraummulde mit eingezogenem Muldenrand aufweist. Denn in dieser Brennraummulde findet das verwirbelte Gemisch besonders günstige geometrische Gegebenheiten vor.This task is solved by the diesel engine according to claim 1. Because with this combination of features it is. possible, on the one hand the acoustics and on the other hand the consumption values of the diesel engine to positively influence. The coordination is crucial of the individual components on top of each other. So is by the division the inlet channels into one Swirl channel and into a filling channel a good swirling of the air and a good filling the combustion chamber guaranteed. Therefore the internal combustion engine can operate in any speed range with an exceptionally high Work efficiency. Due to the special arrangement and design the injector in connection with the swirling and filling described above optimal air-diesel mixture formation guaranteed. supports air-diesel mixture formation by the special design of the piston, according to which this one Combustion chamber bowl with retracted bowl edge. Because in this The swirled mixture finds combustion chamber trough particularly favorable geometric Conditions.
Gemäß einer besonders vorteilhaften Ausführungsform sind die Ventile dieser Diesel-Brennkraftmaschine unsymmetrisch um die Einspritzdüse herum angeordnet. Dank der unsymmetrischen Anordnung der Ventile können der Drallkanal und der Füllkanal ideal zueinander positioniert sein, ohne daß zu starke Einschnürungen oder Umlenkungen der Kanäle, die das Verwirbelungs- und das Füllverhalten stören würden, erforderlich sind. Außerdem kann auf diese Weise der Aufbau des Zylinderkopfes unter optimaler Ausnutzung des vorhandenen Bauraumes bewerkstelligt werden.According to a particularly advantageous one embodiment the valves of this diesel engine are asymmetrical around the injector arranged. Thanks to the asymmetrical arrangement of the valves, the Swirl channel and the filling channel ideally positioned in relation to each other without constrictions or Channel diversion, which would disturb the swirling and filling behavior are. Moreover can in this way the structure of the cylinder head under optimal Utilization of the existing space can be accomplished.
Ferner ist es bevorzugt, daß die Achsen der Ventile maximal um einen Winkel von ca. 5° zu den Achsen der Zylinder geneigt sind.It is further preferred that the axes the valves at a maximum angle of approx. 5 ° to the axes of the cylinders are inclined.
Zweckmäßigerweise können die Einspritzdüsen etwa 1.5 bis 4.0 Millimeter in den Zylinder hineinragen und fünf, sechs oder sieben Spritzöffnungen aufweisen. Dadurch können je nach Querschnitt größere Kraftstoffmengen mit einer kurzen oder langen Einspritzdauer gefördert werden.Conveniently, the injectors protrude about 1.5 to 4.0 millimeters into the cylinder and five, six or have seven spray orifices. This allows Depending on the cross section, larger amounts of fuel be promoted with a short or long injection duration.
Die Einspritzdüsen sollten einen Spritzwinkel von ca. 140 bis 155° aufweisen. Dadurch trifft der eingespritzte Strahl fast tangential auf denn Randbereich innerhalb der Brennraummulde auf. An dieser Stelle hat das verwirbelte Gemisch die maximale Geschwindigkeit.The injectors should have a spray angle of have approximately 140 to 155 °. As a result, the injected jet strikes almost tangentially Edge area within the combustion chamber trough. At this point the swirled mixture the maximum speed.
Bevorzugt beträgt das Verhältnis der Durchmesser von Brennraummulde und Kolben 0.48 bis 0.53 und das Verhältnis von Hub und Durchmesser des Kolbens 1.05 bis 1.20. Innerhalb dieser Relationen wird der Verbrennungsvorgang der Brennkraftmaschine begünstigt. Zugleich ist dadurch eine lange Standzeit des Kolbens verwirklicht. Indem der Kolben zusätzlich noch einen gewölbten Muldenboden aufweist, kann die Standzeit des Kolbens weiter verlängert werden.The ratio of the diameter of the combustion chamber trough is preferably and pistons 0.48 to 0.53 and the ratio of stroke and diameter of the Pistons 1.05 to 1.20. The combustion process takes place within these relations favored the internal combustion engine. At the same time, the piston has a long service life. By adding the piston another arched one Has trough bottom, the service life of the piston can be further extended.
In vorteilhafter Weise arbeitet die erfindungsgemäße Brennkraftmaschine mit einer Verdichtung von 18 bis 22.The works in an advantageous manner Internal combustion engine according to the invention with a compression of 18 to 22.
Schließlich kann eine Abgasturboladung mit Ladeluftkühlung sowie auch eine Abgasrückführung vorgesehen sein.Finally, an exhaust gas turbocharger with charge air cooling as well as an exhaust gas recirculation his.
Die vorliegende Erfindung wird unter Bezugnahme auf die beiden Zeichnungsfiguren näher erläutert. Es zeigen:The present invention is under Reference to the two drawing figures explained in more detail. Show it:
In den Figuren ist ein Zylinder
An seiner Stirnseite weist der Kolben
Stirnseitig schließt sich
an den Zylinder
Beide Einlaßventile
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19621635A DE19621635B4 (en) | 1996-05-30 | 1996-05-30 | Diesel engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19621635A DE19621635B4 (en) | 1996-05-30 | 1996-05-30 | Diesel engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19621635A1 DE19621635A1 (en) | 1997-12-04 |
DE19621635B4 true DE19621635B4 (en) | 2004-02-05 |
Family
ID=7795634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19621635A Expired - Lifetime DE19621635B4 (en) | 1996-05-30 | 1996-05-30 | Diesel engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19621635B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013060497A2 (en) | 2011-10-28 | 2013-05-02 | Ks Kolbenschmidt Gmbh | Piston and method for producing same |
DE102012213532A1 (en) | 2012-06-29 | 2014-01-02 | Robert Bosch Gmbh | Piston for an internal combustion engine |
DE102007053890B4 (en) | 2007-11-09 | 2019-02-07 | Volkswagen Ag | Internal combustion engine with auto-ignition |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19735183A1 (en) * | 1997-08-14 | 1999-02-18 | Deutz Ag | Four-valve cylinder head of an internal combustion engine |
DE10051325B4 (en) * | 2000-10-17 | 2006-06-08 | Adam Opel Ag | Internal combustion engine |
DE10150721B4 (en) * | 2001-10-13 | 2012-02-09 | Daimler Ag | Diesel engine |
AT7204U1 (en) * | 2002-12-19 | 2004-11-25 | Avl List Gmbh | METHOD FOR OPERATING A DIRECTLY INJECTING DIESEL INTERNAL COMBUSTION ENGINE |
DE102009025063A1 (en) | 2009-06-10 | 2010-12-30 | Ks Kolbenschmidt Gmbh | Light metal piston with multiple omega combustion bowl |
JP6485489B2 (en) | 2017-05-23 | 2019-03-20 | マツダ株式会社 | ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7203995U (en) * | 1972-04-27 | Automobiles M Berliet | Cylinder head for an internal combustion engine, in particular for a diesel engine | |
WO1986005237A1 (en) * | 1985-03-05 | 1986-09-12 | Motoren-Werke Mannheim Ag Vorm. Benz Abt. Stat. Mo | Intake spiral and/or turbulence device for combustion engines |
DE3628366A1 (en) * | 1985-08-27 | 1987-03-12 | Toyota Motor Co Ltd | CYLINDER HEAD WITH A TWIN INLET CONSTRUCTION WITH VARIABLE VIBRATION FOR AN INTERNAL COMBUSTION ENGINE |
US4944266A (en) * | 1988-02-12 | 1990-07-31 | Honda Giken Kogyo Kabushiki Kaisha | Direct-injection diesel engine |
US4959961A (en) * | 1988-05-10 | 1990-10-02 | Daimler-Benz Aktiengesellschaft | Supercharged internal combustion engine |
DE4017066A1 (en) * | 1989-06-06 | 1990-12-13 | Avl Verbrennungskraft Messtech | IC engine cylinder head - has two inlet valves with common shutter regulating second port and section of first |
EP0412552A1 (en) * | 1989-08-09 | 1991-02-13 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Combustion chamber for a Diesel engine |
EP0537745A1 (en) * | 1991-10-15 | 1993-04-21 | Mazda Motor Corporation | Intake system for engine |
EP0477046B1 (en) * | 1990-08-16 | 1994-07-06 | Nissan Motor Company Limited | Direct injection diesel engine |
DE19534904A1 (en) * | 1994-09-29 | 1996-04-04 | Volkswagen Ag | Cylinder head for IC engine |
-
1996
- 1996-05-30 DE DE19621635A patent/DE19621635B4/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7203995U (en) * | 1972-04-27 | Automobiles M Berliet | Cylinder head for an internal combustion engine, in particular for a diesel engine | |
WO1986005237A1 (en) * | 1985-03-05 | 1986-09-12 | Motoren-Werke Mannheim Ag Vorm. Benz Abt. Stat. Mo | Intake spiral and/or turbulence device for combustion engines |
DE3628366A1 (en) * | 1985-08-27 | 1987-03-12 | Toyota Motor Co Ltd | CYLINDER HEAD WITH A TWIN INLET CONSTRUCTION WITH VARIABLE VIBRATION FOR AN INTERNAL COMBUSTION ENGINE |
US4944266A (en) * | 1988-02-12 | 1990-07-31 | Honda Giken Kogyo Kabushiki Kaisha | Direct-injection diesel engine |
DE3903831C2 (en) * | 1988-02-12 | 1993-01-21 | Honda Giken Kogyo K.K., Tokio/Tokyo, Jp | |
US4959961A (en) * | 1988-05-10 | 1990-10-02 | Daimler-Benz Aktiengesellschaft | Supercharged internal combustion engine |
DE4017066A1 (en) * | 1989-06-06 | 1990-12-13 | Avl Verbrennungskraft Messtech | IC engine cylinder head - has two inlet valves with common shutter regulating second port and section of first |
EP0412552A1 (en) * | 1989-08-09 | 1991-02-13 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Combustion chamber for a Diesel engine |
EP0477046B1 (en) * | 1990-08-16 | 1994-07-06 | Nissan Motor Company Limited | Direct injection diesel engine |
EP0537745A1 (en) * | 1991-10-15 | 1993-04-21 | Mazda Motor Corporation | Intake system for engine |
DE19534904A1 (en) * | 1994-09-29 | 1996-04-04 | Volkswagen Ag | Cylinder head for IC engine |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007053890B4 (en) | 2007-11-09 | 2019-02-07 | Volkswagen Ag | Internal combustion engine with auto-ignition |
WO2013060497A2 (en) | 2011-10-28 | 2013-05-02 | Ks Kolbenschmidt Gmbh | Piston and method for producing same |
DE102011085434A1 (en) | 2011-10-28 | 2013-05-02 | Ks Kolbenschmidt Gmbh | Piston and process for its production |
DE102012213532A1 (en) | 2012-06-29 | 2014-01-02 | Robert Bosch Gmbh | Piston for an internal combustion engine |
WO2014001523A2 (en) | 2012-06-29 | 2014-01-03 | Robert Bosch Gmbh | Piston for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE19621635A1 (en) | 1997-12-04 |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
R071 | Expiry of right |