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DE1301607B - Injection piston air-compressing internal combustion engine - Google Patents

Injection piston air-compressing internal combustion engine

Info

Publication number
DE1301607B
DE1301607B DEK51373A DEK0051373A DE1301607B DE 1301607 B DE1301607 B DE 1301607B DE K51373 A DEK51373 A DE K51373A DE K0051373 A DEK0051373 A DE K0051373A DE 1301607 B DE1301607 B DE 1301607B
Authority
DE
Germany
Prior art keywords
combustion chamber
fuel
combustion
longitudinal axis
air
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Withdrawn
Application number
DEK51373A
Other languages
German (de)
Inventor
Franz Dr Pischinger
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DEK51373A priority Critical patent/DE1301607B/en
Priority to AT961264A priority patent/AT264207B/en
Priority to GB46543/64A priority patent/GB1076598A/en
Publication of DE1301607B publication Critical patent/DE1301607B/en
Withdrawn legal-status Critical Current

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
    • 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
    • F02B23/0645—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
    • 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
    • F02B23/0675—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 the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • 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
    • F02B2023/0615—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 the combustion space having a volume defined by revolution around an axis inclined relative to the cylinder axis
    • 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
    • F02B23/0618—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
    • F02B23/0624—Swirl 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
    • 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
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Description

Die Erfindung betrifft eine luftverdichtende Einspritzbrennkraftkolbenmaschine, bei der der Kraftstoff in einen gegen Ende der Verdichtung nahezu die gesamte Verbrennungsluft aufnehmenden, in seiner Grundform zylindrischen Brennraum eingespritzt wird, in dem die Verbrennungsluft zum Einspritzzeitpunkt eine kreisende Bewegung um die Brennraumlängsachse ausführt, wobei Länge und Durchmesser des Brennraumes etwa im Verhältnis 1 : I. zueinander stehen und ein Kraftstoffstrahl parallel oder etwa parallel zur Brennraumlängsachse in einigem Abstand von der Brennraumwand entlang derselben gerichtet ist, während ein zweiter Kraftstoffstrahl quer durch den Brennraum so gerichtet ist, daß er einen Kreis um die Brennraumachse tangiert.The invention relates to an air-compressing injection internal combustion engine, in which the fuel flows into almost all of the combustion air towards the end of the compression receiving, in its basic shape cylindrical combustion chamber is injected into which causes the combustion air to move in a circular motion around the longitudinal axis of the combustion chamber at the time of injection executes, with the length and diameter of the combustion chamber in a ratio of approximately 1: I. stand to each other and a fuel jet parallel or approximately parallel to the longitudinal axis of the combustion chamber is directed at some distance from the combustion chamber wall along the same, while a second fuel jet is directed across the combustion chamber so that it has a Circle around the axis of the combustion chamber is tangent.

Brennkraftmaschinen der vorstehend näher beschriebenen Art sind bekannt. Bei ihnen wird der parallel oder etwa parallel zur Brennraumlängsachse in einigem Abstand von der Brennraumwand entlang derselben gerichtete Kraftstoffstrahl gut zerstäubt unmittelbar in die kreisende Verbrennungsluft, also luftverteilt, eingebracht, so daß sich in der Nähe der Wand des zylindrischen Brennraumes ein kreisender Gemischring bildet. Versuche mit solchen Brennkraftmaschinen ergaben, daß dieselben die Hauptbedingungen, wie niedriger Kraftstoffverbrauch, Gangruhe und rauchlose Verbrennung, schon weitgehend zu erfüllen vermögen. Es hat sich jedoch gezeigt, daß insbesondere für Fahrzeugmotoren, die mit stark schwankender Drehzahl und Belastung betrieben werden, noch Verbesserungen vorgenommen werden müssen, die einer Anpassung an die heute gebräuchlichen Einspritzsysteme Rechnung tragen.Internal combustion engines of the type described in more detail above are known. With them, it becomes somewhat parallel or approximately parallel to the longitudinal axis of the combustion chamber Distance from the combustion chamber wall along the same directed fuel jet well atomized directly into the circulating combustion air, i.e. air-dispersed, introduced, so that in the vicinity of the wall of the cylindrical combustion chamber there is a circling mixture ring forms. Tests with such internal combustion engines showed that the same the main conditions such as low fuel consumption, smooth gear and smokeless combustion, to a large extent able to fulfill. It has been shown, however, that especially for vehicle engines, which are operated with strongly fluctuating speed and load, still improvements must be made to adapt to the injection systems in use today Take into account.

Für den parallel oder etwa parallel zur Brennraumlängsachse in einigem Abstand von der Brennraumwand entlang derselben gerichteten Kraftstoffstrahl ist es von Bedeutung, daß er wegen der Bildung des Gemischringes im zylindrischen Brennraum nicht auf dessen Bodenfläche auftrifft. Diese Bedingung ist bei der bekannten Brennkraftmaschine wegen der kurzen zur Verfügung stehenden Strecke für den Kraftstoffstrahl nur schwer zu erfüllen. Es zeichnet sich somit die Aufgabe der Erfindung ab, für den entlang der Wand des zylindrischen Brennraumes eingespritzten Kraftstoffstrahl günstigere Bedingungen für die Gemischaufbereitung zu schaffen.For the parallel or roughly parallel to the longitudinal axis of the combustion chamber in some ways Distance from the combustion chamber wall is directed along the same fuel jet it is important that it is because of the formation of the mixture ring in the cylindrical combustion chamber does not hit the floor surface. This condition applies to the known internal combustion engine difficult because of the short distance available for the fuel jet to meet. It thus emerges from the task of the invention for the along the wall of the cylindrical combustion chamber injected fuel jet cheaper To create conditions for the mixture preparation.

Die Lösung dieser Aufgabe besteht, ausgehend von einer Brennkraftmaschine der eingangs beschriebenen Art, erfindungsgemäß darin, daß die Längsachse des Brennraumes zur Ermöglichung einer größeren freien Strahllänge für den entlang der Brennraumwand gerichteten Kraftstoffstrahl geneigt zur Zylinderachse verläuft.The solution to this problem is based on an internal combustion engine of the type described above, according to the invention in that the longitudinal axis of the combustion chamber to enable a greater free jet length for the one along the combustion chamber wall directed fuel jet runs inclined to the cylinder axis.

Die auf diese Weise sichergestellte größere Spritzlänge ist, wie sich gezeigt hat, bereits von erheblicher Bedeutung, weil es dadurch gelingt, auch größere Mengen von Kraftstoff vollständig luftverteilt in den Brennraum einzubringen. Für die Verbesserung ist aber auch noch die durch die Schrägstellung des zylindrischen Brennraumes geänderte Strömung der Verbrennungsluft in demselben bestimmend. Nach den zur Zeit bestehenden Vorstellungen hierüber wird in der Hauptsache ein günstiger Einfluß auf den entlang der Brennraumwand eingespritzten Kraftstoffstrahl hervorgerufen, der zusammen mit der Vergrößerung der Spritzlänge ein Auftreffen des Kraftstoffstrahls auf den Boden des Brennraumes verhindert.The greater spray length ensured in this way is how has shown, already of considerable importance, because it also succeeds in larger ones To bring quantities of fuel into the combustion chamber, completely air-distributed. For but the improvement is also due to the inclination of the cylindrical Combustion chamber changed flow of the combustion air in the same determining. To the current ideas about this will mainly be a more favorable one Influence on the fuel jet injected along the combustion chamber wall, which, together with the increase in the spray length, causes the fuel jet to hit on the floor of the combustion chamber.

Ein weiterer auf eine stärkere Intensivierung der Aufbereitung gerichteter Vorschlag geht dahin, dem entlang der Wandung gerichteten Kraftstoffstrahl eine schwache Richtungskomponente entgegen der Drallrichtung der kreisenden Verbrennungsluft zu erteilen.Another one aimed at intensifying processing The proposal is to give the fuel jet directed along the wall a weak directional component against the swirl direction of the circulating combustion air granted.

Im Sinne der Erfindung kann es vorteilhaft sein, wenn der insgesamt in den Brennraum einzubringende Kraftstoff etwa je zur Hälfte auf die beiden Strahlen aufgeteilt wird. Dadurch wird einerseits in vorteilhafter Weise erzielt, daß der Kraftstoffanteil auf den entlang der Brennraumwand eingespritzten Kraftstoffstrahl vermindert und andererseits der Gemischring in seiner radialen Erstreckung durch den zweiten Kraftstoffstrahl in günstiger Weise verstärkt wird. Dem zweiten Kraftstoffstrahl kommt auf diese Weise neben seiner Wirkung als Zündstrahl noch eine besondere Bedeutung zu.In the context of the invention, it can be advantageous if the total Half of the fuel to be introduced into the combustion chamber is applied to the two jets is divided. This is achieved on the one hand in an advantageous manner that the Fuel proportion on the fuel jet injected along the combustion chamber wall reduced and on the other hand the mixture ring in its radial extent by the second fuel jet is boosted in a favorable manner. The second fuel jet In this way, in addition to its effect as a pilot jet, it also has a special meaning to.

Es soll hier nicht außer acht gelassen werden, daß es an sich bekannt ist, die Achsen von rotationssymmetrischen Brennräumen zur Zylinderachse um einen bestimmten Winkel zu neigen, jedoch nur im Zusammenhang mit anderen Gemischbildungsverfahren. In einem Falle wird hierbei der Kraftstoff in Richtung der kreisenden Luft an der Brennraumwandung entlang gespritzt. Bei einer anderen bekannten Maschine mit einem schräggestellten walzenförmigen Brennraum im Kolben ist das Kraftstoffeinspritzventil etwa mittig vor dem Brennraum angeordnet und die Kraftstoffstrahlen treten aus dem Einspritzventil fächerförmig auf die Brennraumwand zu gerichtet aus. Schließlich ist noch eine Brennkraftmaschine mit einem koaxial zur Zylinderlängsachse im Kolben liegenden kugeligen Brennraum bekannt, in dem die Verbrennungsluft zum Zeitpunkt der Einspritzung um die Zylinderlängsachse kreist. Die Einspritzung des Kraftstoffes in den rotationssymmetrischen Brennraum erfolgt zweistrahlig, wobei die Achse des einen Strahls mit einer verhältnismäßig kurzen Sehne des kugeligen Brennraumes zusammenfällt, so daß mit Sicherheit ein erheblicher Teil des Kraftstoffes an die Wand des kugeligen Brennraumes gelangt, während der zweite Kraftstoffstrahl zur Brennraummitte hin gerichtet ist.It should not be ignored here that it is known per se is, the axes of rotationally symmetrical combustion chambers to the cylinder axis by one incline at certain angles, but only in connection with other mixture formation processes. In one case, the fuel is in the direction of the circulating air at the Injected along the combustion chamber wall. In another known machine with a The inclined cylindrical combustion chamber in the piston is the fuel injection valve arranged approximately in the middle in front of the combustion chamber and the fuel jets emerge from the Injector fan-shaped directed towards the combustion chamber wall. In the end is still an internal combustion engine with a coaxial to the cylinder longitudinal axis in the piston lying spherical combustion chamber known in which the combustion air at the time the injection circles around the longitudinal axis of the cylinder. The injection of the fuel in the rotationally symmetrical combustion chamber takes place in two directions, the axis of the a beam coincides with a relatively short chord of the spherical combustion chamber, so that with certainty a considerable part of the fuel on the wall of the spherical Combustion chamber arrives, while the second fuel jet towards the middle of the combustion chamber is directed.

In der Zeichnung ist eine Ausführungsform der Erfindung beispielsweise dargestellt.In the drawing, an embodiment of the invention is for example shown.

A b b. 1. zeigt den Arbeitskolben einer erfindungsgemäßen Brennkraftmaschine mit einem zylindrischen Brennraum in Draufsicht auf den Kolbenboden; A b b. 2 zeigt diesen Kolben teilweise im Schnitt nach der Linie II-II in A b b. 1; A b b. 3 stellt einen Schnitt nach der Linie III-III in A b b. 2 durch den Arbeitskolben dar.A b b. 1. shows the working piston of an internal combustion engine according to the invention with a cylindrical combustion chamber in plan view of the piston head; A b b. 2 shows this piston partially in section along the line II-II in A b b. 1; A b b. 3 represents a section along the line III-III in A b b. 2 by the working piston.

Wie aus den A b b. 1 und 2 zu ersehen ist, ist der Brennraum 1 im Kolben 2 zylindrisch und grundsätzlich so angeordnet, daß er mit dem Kolben 2 einen zum Zylinderkopf 3 hin offenen Topf bildet. In diesem Brennraum 1 kreist die Verbrennungsluft zum Zeitpunkt der Einspritzung in der in A b b.1 durch einen Pfeil angedeuteten Richtung. Der Kraftstoff wird durch ein am Rande des Brennraumes im Zvlinderkopf angeordnetes Ventil 8 stark zerstäubt in zwei Strahlen 4 und 5 eingespritzt, von denen der erstere etwa senkrecht zu den Drallebenen der Verbrennungsluft, jedoch mit einer kleinen Richtungskomponente entgegen der Drallrichtung, in einigem Abstand von der Brennraumwand, wie aus A b b. 3 zu ersehen ist, verläuft. Der Strahl 5 weist eine starke Richtungskomponente in Drallrichtung der Verbrennungsluft auf.As shown in the A b b. 1 and 2, the combustion chamber 1 in the piston 2 is cylindrical and basically arranged in such a way that, with the piston 2, it forms a pot open towards the cylinder head 3. In this combustion chamber 1, the combustion air circulates at the time of injection in the direction indicated by an arrow in A b b.1. The fuel is injected through a valve 8 located on the edge of the combustion chamber in the cylinder head in a highly atomized form in two jets 4 and 5, the first of which is approximately perpendicular to the swirl planes of the combustion air, but with a small directional component against the swirl direction, at some distance from the Combustion chamber wall, as from A b b. 3 can be seen, runs. The jet 5 has a strong directional component in the swirl direction of the combustion air.

Die Verbrennung nimmt folgenden Verlauf: Unmittelbar nach der Einspritzung erfolgt eine intensive Vermischung des Kraftstoffes mit der kreisenden Verbrennungsluft, die wiederum das entstandene Gemisch über den Umfang des Brennraumes verteilt. Kurze Zeit nach der Einspritzung entzündet sich ein Teil des in das Randgebiet des heißen Luftkerns eingespritzten Kraftstoffes 5 an der heißen Luft. Die Flammen dieses Zündherdes brennen nach innen und bilden schließlich einen rotierenden Flammenkern, der Schicht um Schicht das außen rotierende, gut aufbereitete Gemisch erfaßt.The combustion takes the following course: Immediately after the injection the fuel is intensively mixed with the circulating combustion air, which in turn distributes the resulting mixture over the circumference of the combustion chamber. Short Time after the injection, part of the ignites in the peripheral area of the hot Air core injected fuel 5 in the hot air. The flames of this ignition source burn inwards and finally form a rotating flame core, the layer the well-prepared mixture rotating on the outside is recorded by layer.

Wie A b b. 3 erkennen läßt, liegt der Brennraum 1 dergestalt schief im Kolben 2, daß seine Längsachse y-y mit der Zylinderlängsachse x-x einen spitzen Winkel a einschließt, wobei das Einspritzventil so angeordnet ist, daß dem entlang der Brennraumwand gerichteten Brennstoffstrahl 4 der längste Brennraumwandabschnitt 6 gegenüber dem entsprechend verkürzten Brennraumwandabschnitt zugeordnet ist. Es steht ihm also die größtmögliche Strahllänge zur Verfügung.Like A b b. 3 reveals, the combustion chamber 1 is so crooked in the piston 2 that its longitudinal axis y-y is pointed with the cylinder longitudinal axis x-x Angle a encloses, wherein the injection valve is arranged so that the along the fuel jet 4 directed towards the combustion chamber wall is the longest combustion chamber wall section 6 is assigned to the correspondingly shortened combustion chamber wall section. It the greatest possible beam length is available to him.

Für die Gegenstände der Ansprüche 2 und 3 wird kein selbständiger Schutz beansprucht. Vielmehr sollen die Gegenstände dieser Ansprüche nur im Zusammenhang mit dem Gegenstand des Hauptanspruches geschützt werden.For the subjects of claims 2 and 3 there is no independent Protection claimed. Rather, the subjects of these claims are intended only in connection be protected with the subject matter of the main claim.

Claims (3)

Patentansprüche: 1. Luftverdichtende Einspritzbrennkraftkolbenmaschine, bei der der Kraftstoff in einen gegen Ende der Verdichtung nahezu die gesamte Verbrennungsluft aufnehmenden, in seiner Grundform zylindrischen Brennraum eingespritzt wird, in dem die Verbrennungsluft zum Einspritzzeitpunkt eine kreisende Bewegung um die Brennraumlängsachse ausführt, wobei Länge und Durchmesser des Brennraumes etwa im Verhältnis 1: 1 zueinander stehen und ein Kraftstoffstrahl parallel oder etwa parallel zur Brennraumlängsachse in einigem Abstand von der Brennraumwand entlang derselben gerichtet ist, während ein zweiter Kraftstoffstrahl quer durch den Brennraum so gerichtet ist, daß er einen Kreis um die Brennraumachse tangiert, d a d u r c h g e -k e n n z e i c h n e t, daß die Längsachse (y-y) des Brennraumes (1) zur Ermöglichung einer größeren freien Strahllänge für den entlang der Brennraumwand (6) gerichteten Kraftstoffstrahl (4) geneigt zur Zylinderlängsachse (x-x) verläuft. Claims: 1. Air-compressing injection internal combustion engine in which the fuel is injected into a combustion chamber which is cylindrical in its basic shape and which takes up almost all of the combustion air towards the end of compression, in which the combustion air at the time of injection executes a circular movement around the longitudinal axis of the combustion chamber, the length and diameter of the The combustion chamber is approximately in a ratio of 1: 1 to each other and a fuel jet is directed parallel or approximately parallel to the longitudinal axis of the combustion chamber at some distance from the combustion chamber wall, while a second fuel jet is directed across the combustion chamber in such a way that it touches a circle around the combustion chamber axis, characterized in that the longitudinal axis (yy) of the combustion chamber (1) is inclined to the cylinder longitudinal axis (xx) to enable a greater free jet length for the fuel jet (4) directed along the combustion chamber wall (6). 2. Einspritzbrennkraftkolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der entlang der Brennraumwandung gerichtete Kraftstoffstrahl (4) eine schwache Richtungskomponente entgegen der Drallrichtung der kreisenden Verbrennungsluft aufweist. 2. Injection piston engine according to claim 1, characterized in that the fuel jet (4) directed along the combustion chamber wall has a weak directional component counter to the swirl direction of the circulating combustion air. 3. Einspritzbrennkraftkolbenmaschine nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der insgesamt in den Brennraum einzubringende Kraftstoff etwa je zur Hälfte auf die beiden Strahlen (4, 5) aufgeteilt ist.3. Injection piston engine according to claims 1 and 2, characterized in that the total of the fuel to be introduced into the combustion chamber is divided approximately in half between the two jets (4, 5) .
DEK51373A 1963-11-15 1963-11-15 Injection piston air-compressing internal combustion engine Withdrawn DE1301607B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEK51373A DE1301607B (en) 1963-11-15 1963-11-15 Injection piston air-compressing internal combustion engine
AT961264A AT264207B (en) 1963-11-15 1964-11-13 Air-compressing injection internal combustion engine
GB46543/64A GB1076598A (en) 1963-11-15 1964-11-16 Air-compressing injection-type internal combustion piston engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK51373A DE1301607B (en) 1963-11-15 1963-11-15 Injection piston air-compressing internal combustion engine

Publications (1)

Publication Number Publication Date
DE1301607B true DE1301607B (en) 1969-08-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEK51373A Withdrawn DE1301607B (en) 1963-11-15 1963-11-15 Injection piston air-compressing internal combustion engine

Country Status (3)

Country Link
AT (1) AT264207B (en)
DE (1) DE1301607B (en)
GB (1) GB1076598A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849778A1 (en) * 1977-11-23 1979-05-31 Volvo Ab FUEL INJECTION FOR COMBUSTION ENGINES ACCORDING TO THE DIESEL PRINCIPLE
DE3044442C1 (en) * 1980-11-26 1982-06-03 Bayerische Motoren Werke AG, 8000 München Combustion process for a reciprocating piston internal combustion engine with direct injection
US4370958A (en) * 1979-01-13 1983-02-01 Franz Pischinger Method of operating an air-compressing, self-igniting engine for liquid fuel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB380934A (en) * 1931-09-19 1932-09-29 British Leyland Motor Corp Improvements in internal combustion engines of the liquid fuel injection type
GB625948A (en) * 1947-03-07 1949-07-06 Harry Ralph Ricardo Improvements in or relating to fuel injection in compression ignition internal combustion engines
DE1020210B (en) * 1954-07-24 1957-11-28 Hans Krug Injection processes for self-igniting internal combustion engines, especially diesel engines
CH335297A (en) * 1955-03-14 1958-12-31 Lanova Ag Fuel injection processes for internal combustion engines
DE1057816B (en) * 1956-09-08 1959-05-21 Daimler Benz Ag Four-stroke internal combustion engine
GB816509A (en) * 1955-03-14 1959-07-15 Lanova Ag Improvements in or relating to diesel engines
GB891738A (en) * 1959-09-22 1962-03-21 Ricardo & Co Engineers Internal combustion engine of the liquid fuel injection compression ignition type

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB380934A (en) * 1931-09-19 1932-09-29 British Leyland Motor Corp Improvements in internal combustion engines of the liquid fuel injection type
GB625948A (en) * 1947-03-07 1949-07-06 Harry Ralph Ricardo Improvements in or relating to fuel injection in compression ignition internal combustion engines
DE1020210B (en) * 1954-07-24 1957-11-28 Hans Krug Injection processes for self-igniting internal combustion engines, especially diesel engines
CH335297A (en) * 1955-03-14 1958-12-31 Lanova Ag Fuel injection processes for internal combustion engines
GB816509A (en) * 1955-03-14 1959-07-15 Lanova Ag Improvements in or relating to diesel engines
DE1057816B (en) * 1956-09-08 1959-05-21 Daimler Benz Ag Four-stroke internal combustion engine
GB891738A (en) * 1959-09-22 1962-03-21 Ricardo & Co Engineers Internal combustion engine of the liquid fuel injection compression ignition type

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849778A1 (en) * 1977-11-23 1979-05-31 Volvo Ab FUEL INJECTION FOR COMBUSTION ENGINES ACCORDING TO THE DIESEL PRINCIPLE
US4370958A (en) * 1979-01-13 1983-02-01 Franz Pischinger Method of operating an air-compressing, self-igniting engine for liquid fuel
US4463719A (en) * 1979-01-13 1984-08-07 Franz Pischinger Air-compressing, self-igniting engine for liquid fuel
DE3044442C1 (en) * 1980-11-26 1982-06-03 Bayerische Motoren Werke AG, 8000 München Combustion process for a reciprocating piston internal combustion engine with direct injection

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AT264207B (en) 1968-08-26

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