DE2348372A1 - INJECTION ARRANGEMENT FOR A DIESEL PISTON ENGINE WITH DIRECT INJECTION - Google Patents

INJECTION ARRANGEMENT FOR A DIESEL PISTON ENGINE WITH DIRECT INJECTION

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Publication number
DE2348372A1
DE2348372A1 DE19732348372 DE2348372A DE2348372A1 DE 2348372 A1 DE2348372 A1 DE 2348372A1 DE 19732348372 DE19732348372 DE 19732348372 DE 2348372 A DE2348372 A DE 2348372A DE 2348372 A1 DE2348372 A1 DE 2348372A1
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DE
Germany
Prior art keywords
injection
combustion chamber
piston
injector
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.)
Ceased
Application number
DE19732348372
Other languages
German (de)
Inventor
Gerard Marion
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automobiles M Berliet SA
Original Assignee
Automobiles M Berliet SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Automobiles M Berliet SA filed Critical Automobiles M Berliet SA
Publication of DE2348372A1 publication Critical patent/DE2348372A1/en
Ceased legal-status Critical Current

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Classifications

    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1826—Discharge orifices having different sizes
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0669—Details related to the fuel injector or the fuel spray having multiple fuel spray jets per injector nozzle
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0621—Squish flow
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/066—Details related to the fuel injector or the fuel spray the injector being located substantially off-set from the cylinder centre 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Description

PATENTANWALT DIPl .-INC/. JOACHIM STRASSE 2348372PATENT Attorney DIPl.-INC /. JOACHIM STREET 2348372

M1 HANAV/ · R(IMERSTR. Vt ■ ICSTfACH 79J · TEL. SUB 03 · Tl LEQUAMME HANAUPATtNT · TELEX: 4 IH1782 patM 1 HANAV / · R (IMERSTR. Vt ■ ICSTfACH 79J · TEL. SUB 03 · Tl LEQUAMME HANAUPATtNT · TELEX: 4 IH1782 pat

AUTOMOBILES K. BERLIETAUTOMOBILES K. BERLIET

25. September 1973 Lyon 7° (RhÄne), Frankrach Str/Wn - 10 987September 25, 1973 Lyon 7 ° (RhÄne), Frankrach Str / Wn - 10 987

Einspritzanordnung füreinen Dieselkolbenmotor mit direkter EinspritzungInjection arrangement for a reciprocating diesel engine with direct injection

Die vorliegende Erfindung bezieht sich auf; eine Einspritz- und Verbrennungsanordnung für einen Hubkolben-Dieselmotor mit direkter Einspritzung, dessen Injektor im Zylinderkopf gegenüber einer versetzt .im Kolben ausgehöhlten Brennkammer und leibst versetzt angeordnet ist.The present invention relates to; an injection and combustion arrangement for a reciprocating diesel engine with direct injection, the injector of which is in the cylinder head is arranged offset from a combustion chamber hollowed out in the piston and is probably offset.

409819/0259409819/0259

BAD ORIGINALBATH ORIGINAL

Es ist bekannt, einen derartigen Dieselmotor mit einer Brennkammer, die einerseits durch eine Plan fläche des Zylinderkopfes und andererseits durch eine irn Kolben ausgehöhlte Vertiefung-definiert ist, zu verwirklichen. Der Injektor ist im Zylinderkopf gelagert und die Hase des Injektors steckt in einer Öffnung in der FLanfläche des Zylinderkopfes.It is known, such a diesel engine with a combustion chamber, which is on the one hand by a flat surface of the Cylinder head and on the other hand by a piston hollowed-out recess-is to be realized. The injector and the rabbit are stored in the cylinder head of the injector is located in an opening in the flange surface of the cylinder head.

Bei der Konstruktion eines Dieselmotors mit zwei Ventilen wird diesen leicht ein beträchtlicher Durchmesser gewährt, so daß der Abstand zwischen den zwei nächstliegenden Ventilsitzen ungenügend ist, um eine Öffnung für den Injektor unterzubringen. Infolgedessen zwingen die Belange der Konstruktion des Zylinderkopfes dazu, den Injektor exzentrisch anzuordnen, das heißt, ihn seitlich in Bezug zu der geometrischen Achse des Zylinders zu verschieben. Diese llittenverlagerung kann beträchtliche Ausmaße annehmen.When designing a diesel engine with two valves, these easily become a considerable diameter granted so that the distance between the two closest valve seats is insufficient to allow an opening to accommodate the injector. As a result, force the concerns of the construction of the cylinder head, to place the injector eccentrically, that is to say laterally with respect to the geometric axis of the cylinder to move. This displacement can be considerable Take on proportions.

Was die im Kolben ausgehöhlte Vertiefung der Brennkammer anbelangt, so ist es unmöglich, diese weit vor- Zentrum zu verlegen, damit lie sich syraietri ich unter den: Injektor befindet. Eine sclciie Mittenverlagerur.g der Kanner würde zu einer übertriebenen Asymmetrie der thermischen Beanspruchungen führen, welche den Kolben erheblich belasten würde.As for the hollow of the combustion chamber hollowed out in the piston, it is impossible to do this far forward too embarrassed, so that syraietri I under the: injector is located. A small shift in the center of the Kanner would to an exaggerated asymmetry of the thermal stresses lead, which put a considerable strain on the piston would.

Schließlich ist Festzustellen, daß die Dieselmotoren mit zwei Ventilen und direkter Einspritzung folgenden Bauraerkmalen unterwerfen iind:Finally, it should be noted that the diesel engines with two valves and direct injection following design features subject to:

409819/0259409819/0259

8AD8AD

Die Stellung der Injektornase ist in dem Zylinderkopf stark versetzt während die Stellung der im Kolben ausgehöhlten Vertiefung der Verbrennungskammer nicht sr stark versetzt ist. Dadurch ergeben sich unterschiedlich zurückzulegende Längen für die aus der Injektornase herausgespritzten Treibstcffstrahlen.The position of the injector nose is in the cylinder head greatly offset while the position of the recess of the combustion chamber hollowed out in the piston is not very much is offset. This results in different lengths to be covered for the injector nose jet of propellant sprayed out.

Diese Unterschiede in der Freien Länge der Einspritzungsstrahlen führen zu einer Asymmetrie im Verbrennungsquerschnitt und zu Lbel3tänden in der Arbeitsweise des 1-iotors, zum Beispiel zum Abfall der thermischen Leistung bei bestimmten Belastungen und Geschwindigkeiten oder zu starker Qualmbildung aus dem Auspuff.These differences in the free length of the injection jets lead to an asymmetry in the combustion cross-section and to levels in the operation of the 1-iotors, For example, about the drop in thermal output at certain loads and speeds or too much Smoke from the exhaust.

Die vorliegende Erfindung steht unter der Aufgabe, diese Nachteile zu vermeiden, und eine Anordnung,verfügbar zu. machen, mit deren Hilfe eine symmetrische Brennstoffgemischverteilung in einem Dieselmotor gewährleistet v/erden kann, dessen Injektor und Brennkammer des Kolbens geometriscl. asymmetrisch angeordnet sind.It is an object of the present invention to obviate these disadvantages and an arrangement to be available. make, with the help of which a symmetrical fuel mixture distribution guaranteed in a diesel engine, the injector and combustion chamber of the piston geometriscl. are arranged asymmetrically.

Erfindungsgemäß besteht die Lösung dieser Aufgabe darin, daß die in der Injektornase vorgesehenen Sinspritzöff~ nungen verschiedene Durchmesser und feste Abstrahlwinkel aufweisen, wobei diese Durchmesser und Abstrahlwinkel so bestimmt sind, daß die Durchdringung von jedem Treibstoff strahl bei der Einspritzung ziemlich gleich der Länge -des Weges ist, der entlang dieses Strahles zurückzulegen ist, bevor er die Wand der Verbrennungskammer des Kolbens trifft, so daß in der Nähe dieser Wand der Verbrennungskammer der Luftüberschuß für alle Strahlen derselbe ist.According to the invention, the solution to this problem consists in that the Sinspritzöff ~ provided in the injector nose different diameters and fixed beam angles have, these diameters and radiation angles are determined so that the penetration of any fuel At injection, the jet is pretty much equal to the length of the path to be covered along this jet is before it hits the wall of the combustion chamber of the piston, so that near this wall of the combustion chamber the excess air is the same for all jets is.

409819/025409819/025

BAD ORIGINALBATH ORIGINAL

Nach einem anderen Merkmal dieser Erfindung gewährleistet die Tatsache, durch welche verschiedene Durchmesser der Öffnungen der Einspritzdüse eine gleiche Durchdringung aller Strahlen sichern, daß jeder von diesen in der selben Weise von der Wirbelströmung in der Brennkammer betroffen wird, so daß schließlich eine gute Verteilung der Stoßstellen in der Kammer erreicht wird.According to another feature of this invention ensures the fact that different diameters of the Injector openings ensure equal penetration of all jets so that each of them is in the same Way affected by the vortex flow in the combustion chamber so that finally a good distribution of the joints in the chamber is achieved.

Weitere Einzelheiten, Merkmale und Vorteile ergeben sich aus der folgenden Beschreibung eines Ausführungsbeispiels.Further details, features and advantages emerge from the following description of an exemplary embodiment.

Es zeigen:Show it:

Fig. 1 einen gebrochenen Axialschnitt entlang der Linien I - I in Fig. 2 eines nach der Erfindung ausgerüsteten Zylinders eines Dieselmotors und1 shows a broken axial section along the lines I - I in FIG. 2 of a device equipped according to the invention Cylinder of a diesel engine and

Fig. 2 eine Querschnittzeichnung entlang der Linien II ΙΓ in Fig. 1.FIG. 2 shows a cross-sectional drawing along the lines II ΙΓ in FIG. 1.

Der in der Zeichnung dargestellte Dieselrnotorzylinder besteht im wesentlichen aus einer zylindrischen Laufbüchse 1, einem Kolben 2, einem Zylinderkopf 3» dessen untere Fläche II - II eben ist und aus einem Injektor A, dessen Nase 5 seitlich und geneigt zur geometrischen Achse 6 des Zylinders angeordnet ist. Ferner ist eine Wölbung in einer Verbrennungskammer 7 vorgesehen, die sich in der oberen Fläche des Kolbens 2 mit einem an sich bekannten Rotationsprofil befindet. The diesel engine cylinder shown in the drawing consists essentially of a cylindrical liner 1, a piston 2, a cylinder head 3 »the lower surface II - II of which is flat and an injector A, the nose 5 of which is arranged laterally and inclined to the geometric axis 6 of the cylinder is. Furthermore, a bulge is provided in a combustion chamber 7 which is located in the upper surface of the piston 2 with a profile of rotation known per se.

Die 'geometrische Achse 8 des Injektors 4 ist nicht nur zur Achse 6 des Zylinders geneigt, sondern deren SchnittpunktThe 'geometric axis 8 of the injector 4 is inclined not only to the axis 6 of the cylinder, but also its point of intersection

- 5 409819/0259 - 5 409819/0259

23Λ8372'23Λ8372 '

mit der Fl äc lie II - II des Zylinderkopf es ist auch um einen bestimmten Betrag 0 im Vergleich zu der Achse 6 versetzt.with the area II - II of the cylinder head it is also about offset a certain amount 0 compared to the axis 6.

Das Profil der Kammer 7 des Kolbens 2 hat eine Rotationssymmetrieachse 1.7, die ihrerseits im Vergleich zur allgemeinen Achse 6 um einen bestimmten Betrag 11 versetzt ist, der kleiner ist als der Abstand 9.The profile of the chamber 7 of the piston 2 has an axis of rotational symmetry 1.7, which in turn compared to the general Axis 6 is offset by a certain amount 11, which is smaller than the distance 9.

Schließlich ist die an der Stelle 5 befindliche Injektornase seitlich um einen Abstand 12 gegenüber der gemeinsamen senkrechten Fläche der Achsen 6 und 1O versetzt. Die Injektornase ist mit Einspritzöffnungen versehen, die in bestimmte Richtungen weisen, welche durch Strecken 13, 14, 15 und 16 bezeichnet sind, um die von der Achse 8 ausgehenden Treibstoffstrahlen zu verdeutlichen. Aus dieser Darstellung ist ersichtlich, daß die Strahlen 13 und 14 symmetrisch zu den Strahlen 15 und 16 in bezug auf die durch die zwei Achsen 8 und 10 definierte Fläche sind. Ferner ist erkennbar, daß die Strahlen 13 und 16 einen verhältnismäßig langen Weg zurücklegen, bevor sie gegen die Wand der Verbrennungskammer stoßen, wohingegen die Strahlen 14 und 15 kurzer sind.Finally, the injector nose located at point 5 is laterally at a distance 12 from the common one vertical surface of the axes 6 and 1O offset. the Injector nose is provided with injection openings that are inserted into point certain directions, which by stretching 13, 14, 15 and 16 are designated around those proceeding from the axis 8 To illustrate fuel jets. From this representation it can be seen that rays 13 and 14 are symmetrical about rays 15 and 16 with respect to FIG are the area defined by the two axes 8 and 10. It can also be seen that the rays 13 and 16 are relatively travel a long way before they hit the wall of the combustion chamber, whereas the rays do 14 and 15 are shorter.

Nach der Erfindung erhalten die Löcher der Injektornase 5 Durchmesser, die von einem Strahl zu dem anderen verschieden sind. Die Errechnung dieser Durchmesser und deren Richtung wird aufgrund von bekannten Theorien durchgeführt, die nicht erörtert werden brauchen. Hierbei wird so vorge- , gangen, daß die Durchdringung der verschiedenen Strahlen ihrer theoretischen Länge angepaßt sind, was für jeden Strahl und in der Nähe der V/and der Verbrennungslcamner 7According to the invention, the holes of the injector nose 5 have diameters which differ from one jet to the other are. The calculation of these diameters and their direction is carried out on the basis of known theories, the need not be discussed. This is done in such a way that the various rays penetrate are adapted to their theoretical length, what for each beam and in the vicinity of the V / and the combustion camner 7

-G-409819/0259 -G-409819/0259

einen konstanten Luftüberschuß für alle Strahlen ermöglicht. allows a constant excess of air for all jets.

Die vorliegende Beschreibung betrifft die Verbrennungskammer eines einzelnen Zylinders. Selbstverständlich ist diese Erfindung jedoch für einen Dieselmotor mit einer beliebigen Zylinderzahl und -anordnung verwendbar.The present description relates to the combustion chamber of a single cylinder. It goes without saying however, this invention can be used for a diesel engine with any number and arrangement of cylinders.

Ans ρ r ü c heAns ρ back

409819/0259409819/0259

Claims (2)

An s ρ r -ü' c h eAn s ρ r -ü 'c h e Einspritz— und Verbrennungganordnung Für einen Hubkolben—Di es el not or mit direkter Einspritzung, dessen Injektcr im Zylinderkopf gegenüber einer versetzt in Kolben ausgehöhlten Brennkammer und selbst versetzt angeordnet ist, dadurch gekennzeichnet, daß die in der Injektornase (5) vorgesehenen Einspritzöffnungen verschiedene Durchmesser und feste Abstraalvinkel (13, 14, 15, 1C) aufweisen, wobei diese Durchmesser und Abstrahlwinkel so bestimmt sind, daß die Durchdringung vcn jedem Treibsto Pfstrahl bei der Einspritzung ziemlich gleich der Länge des Weges "ist, der entlang dieses Strahles zurückzulegen ist, bevor er die Wand der Verbrennungskammer (7) des Kolbens (2) trifft, so daß in der Nähe dieser Wand der Verbrennungskammer (7) der Luftüberschuß für alle Strahlen derselbe ist.Injection and combustion arrangement for a reciprocating piston — Di es el not or with direct injection, its Injectcr in the cylinder head opposite an offset in Piston hollowed out combustion chamber and self-offset is arranged, characterized in that the provided in the injector nose (5) Injection orifices of various diameters and fixed Abstraalvinkel (13, 14, 15, 1C), these Diameter and beam angle are determined so that the penetration of every jet of propellant in the Injection is pretty much equal to the length of the path "to be traveled along this jet before" he the wall of the combustion chamber (7) of the piston (2) hits so that near this wall of the combustion chamber (7) the excess air is the same for all jets. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß durch die verschiedenen Durchmesser der Öffnungen in der Injektornase (i>) eine gleiche Durchdringung aller.Strahlen (13, 14, 15, 16) entsteht, wobei alle Strahlen in der selben tfeise von. der wirbelströmung in der Verbrennungskammer (7) erfaßbar sind, so daß eine gleichmäßige Verteilung der Stoßstellen in der Kammer'(7) stattfindet.2. Arrangement according to claim 1, characterized in that that through the different diameters of the openings in the injector nose (i>) a equal penetration of all rays (13, 14, 15, 16) arises, with all rays in the same depth of. the vortex flow in the combustion chamber (7) can be detected are so that an even distribution of the joints in the chamber '(7) takes place. JAD ORIGINAL 409819/0259 JAD ORIGINAL 409819/0259 Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Richtung und die Durchmesser der EinspritzöPfnungen in der Injektornase (^) in Bezug zu der durch die geometrische Achse des Injektors und durch die Eotatipnssynmetrieachse der im Kolben ausgehöhlton Vertiefung der Verbrennungskammer definierten Fläche symmetrisch sind.Arrangement according to claim 1 or 2, characterized in that the direction and the diameter of the injection openings in the injector nose (^) are symmetrical in relation to the area defined by the geometrical axis of the injector and by the axis of symmetry of the recess of the combustion chamber hollowed out in the piston. 403819/0259 pad original403819/0259 pad original
DE19732348372 1972-10-25 1973-09-26 INJECTION ARRANGEMENT FOR A DIESEL PISTON ENGINE WITH DIRECT INJECTION Ceased DE2348372A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238496A FR2204224A5 (en) 1972-10-25 1972-10-25

Publications (1)

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DE2348372A1 true DE2348372A1 (en) 1974-05-09

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DE (1) DE2348372A1 (en)
FR (1) FR2204224A5 (en)
GB (1) GB1442341A (en)
IT (1) IT992778B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850879A1 (en) * 1978-11-24 1980-06-19 Maschf Augsburg Nuernberg Ag MULTI-HOLE INJECTION NOZZLE FOR AIR COMPRESSING ENGINES
DE3034824A1 (en) * 1979-09-18 1982-02-25 Hans Prof. Dipl.-Ing. Dr.Dr.h.c. Graz List Direct injection IC engine - has fuel injection nozzle arranged to give even spread of fuel over whole combustion chamber wall
DE102009034072A1 (en) * 2009-07-22 2011-01-27 Emitec Gesellschaft Für Emissionstechnologie Mbh Injector for the supply of reducing agent and apparatus for the treatment of exhaust gases
DE102013219068A1 (en) * 2013-09-23 2015-03-26 Continental Automotive Gmbh Internal combustion engine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406722A1 (en) * 1977-10-18 1979-05-18 Berliet Automobiles DIRECT INJECTION DIESEL ENGINE WITH MECHANICALLY CONTROLLED INJECTOR
DE2901210C2 (en) * 1979-01-13 1984-01-12 Klöckner-Humboldt-Deutz AG, 5000 Köln Method for operating an air-compressing, self-igniting internal combustion engine
GB2097472B (en) * 1980-09-29 1985-05-22 Tsni Dizelny Inst Internal combustion engine
FR2507683B1 (en) * 1981-06-16 1986-05-09 Tsni INTERNAL COMBUSTION ENGINE WITH COMPRESSION IGNITION AND COMBUSTION CHAMBER IN THE PISTON
DE3302427C2 (en) * 1983-01-26 1985-01-24 Daimler-Benz Ag, 7000 Stuttgart Self-igniting internal combustion engine with a rotationally symmetrical piston bowl
FR2876750B1 (en) * 2004-10-19 2010-09-17 Renault Sas INJECTION NOZZLE HAVING DIFFERENT HOLES OF CONICITY AND ENGINE COMPRISING SUCH A NOZZLE
WO2010035311A1 (en) * 2008-09-24 2010-04-01 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine and method of manufacturing the same
CN112879148B (en) * 2021-01-25 2022-11-08 华中科技大学 Asymmetric combustion chamber system suitable for high-power density diesel engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850879A1 (en) * 1978-11-24 1980-06-19 Maschf Augsburg Nuernberg Ag MULTI-HOLE INJECTION NOZZLE FOR AIR COMPRESSING ENGINES
DE3034824A1 (en) * 1979-09-18 1982-02-25 Hans Prof. Dipl.-Ing. Dr.Dr.h.c. Graz List Direct injection IC engine - has fuel injection nozzle arranged to give even spread of fuel over whole combustion chamber wall
DE102009034072A1 (en) * 2009-07-22 2011-01-27 Emitec Gesellschaft Für Emissionstechnologie Mbh Injector for the supply of reducing agent and apparatus for the treatment of exhaust gases
US8528884B2 (en) 2009-07-22 2013-09-10 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Injection nozzle for supplying reducing agent and device for treating exhaust gases
DE102013219068A1 (en) * 2013-09-23 2015-03-26 Continental Automotive Gmbh Internal combustion engine

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FR2204224A5 (en) 1974-05-17
IT992778B (en) 1975-09-30
GB1442341A (en) 1976-07-14

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