DE1526316B2 - COMBUSTION CHAMBER FOR AN AIR-COMPRESSING, SELF-IGNITING COMBUSTION MACHINE - Google Patents
COMBUSTION CHAMBER FOR AN AIR-COMPRESSING, SELF-IGNITING COMBUSTION MACHINEInfo
- Publication number
- DE1526316B2 DE1526316B2 DE1957M0064218 DEM0064218A DE1526316B2 DE 1526316 B2 DE1526316 B2 DE 1526316B2 DE 1957M0064218 DE1957M0064218 DE 1957M0064218 DE M0064218 A DEM0064218 A DE M0064218A DE 1526316 B2 DE1526316 B2 DE 1526316B2
- Authority
- DE
- Germany
- Prior art keywords
- combustion chamber
- air
- fuel
- wall
- combustion
- 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.)
- Granted
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
- F02B23/066—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
- F02B23/0645—Details related to the fuel injector or the fuel spray
- F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
- F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
-
- 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
- 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
- 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
- F02B23/0666—Details related to the fuel injector or the fuel spray having a single fuel spray jet 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
- 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)
- Dispersion Chemistry (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
3 43 4
eine luftverdichtende Einspritzbrennkraftmaschine F i g. 2 einen Längsschnitt durch den erf indungsge-an air-compressing injection internal combustion engine F i g. 2 a longitudinal section through the invention
der eingangs beschriebenen Art derart auszubilden, mäßen Brennraum nach einem Schnitt H-II inof the type described at the outset in such a way that the combustion chamber would be after a section H-II in
daß ihr Verhalten bei Verwendung verschiedenarti- Fig. 1.that their behavior when used in different ways- Fig. 1.
ger, insbesondere schwersiedender Kraftstoffe sowie Der hier kugelförmig (F i g. 2) ausgebildete Brenn-ger, especially high-boiling fuels as well as the spherical (Fig. 2) formed fuel
das Kaltstartverhalten wesentlich verbessert werden. 5 raum 1 ist gleichachsig mit dem Kolben 2 und demthe cold start behavior can be significantly improved. 5 space 1 is coaxial with piston 2 and the
Nach der Erfindung wird die Aufgabe dadurch ge- hier nicht weiter dargestellten Zylinder im Kolben löst, daß in der Brennraumwand mehrere quer zur der Maschine angeordnet. Der Kraftstoff wird über Einspritzrichtung des Kraftstoffes und quer zur Rieh- eine Düse 4, die im Kopf des Zylinders schräg Hetung der Luftströmung verlaufende, derart ausgebil- gend angeordnet ist, in den Brennraum eingebracht, dete Stufen angeordnet sind, daß der sich an der io Der wesentliche Teil des eingebrachten Kraftstoffes Brennraumwand filmartig ausbreitende Kraftstoff die wird durch zwei geschlossene, kurze Kraftstoffstrah-Stufen überspringt, um anschließend wieder auf die Ien5, 6, die unter einem spitzen Winkel auf die Brennraumwand zu gelangen, so daß die sich an den Brennraumwand gerichtet sind, auf diese filmartig Stufen ausbildenden Sekundärwirbel der kreisenden aufgetragen. In F i g. 1 ist der Kraftstoffilm mit 7 be-Verbrennungsluft in Verbindung mit dem vorüberge- 15 zeichnet. Dieser Kraftstoffilm wird stetig von der im hend von der Wand abgelösten Kraftstoff eine ver- Verbrennungsraum, beispielsweise durch ein Schirmstärkte Voroxydation des Kraftstoffes bewirken, ventil oder durch einen Drallkanal eingeleitetenAccording to the invention, the object is achieved in that the cylinder in the piston, not further illustrated here, is arranged in the combustion chamber wall transversely to the engine. The fuel is introduced into the combustion chamber via the injection direction of the fuel and transversely to the pipe The essential part of the fuel introduced into the combustion chamber wall, which spreads like a film, is skipped through two closed, short fuel jet stages in order to then return to the Ien5, 6, which reach the combustion chamber wall at an acute angle so that it is directed towards the combustion chamber wall are applied to these secondary vortices of the circling, which form steps like a film. In Fig. 1 shows the fuel film with 7 combustion air in connection with the 15 above. This fuel film is continuously fed into a combustion chamber, for example by means of a shielded pre-oxidation of the fuel, valve or through a swirl duct, caused by the fuel, which is detached from the wall
Die treppenartigen Stufen verlaufen dabei in der kreisenden Luftströmung (Pfeile) abgelöst und mitThe stair-like steps run in the circling air flow (arrows) detached and with
Regel parallel zur Zylinderlängsachse, sie können der Verbrennungsluft vermischt, wobei ein brennba-Usually parallel to the longitudinal axis of the cylinder, they can be mixed with the combustion air, whereby a combustible
aber auch innerhalb eines Winkels zu ihr liegen, der so res Kraftstoffdampf-Luft-Gemisch entsteht. Die Zün-but also lie within an angle to it, the so res fuel vapor-air mixture is created. The ignition
kleiner als 90° ist. Als Weiterbildung der Erfindung dung erfolgt mittels des Restkraftstoffes, der unmittel-is less than 90 °. As a further development of the invention, training takes place by means of the residual fuel, which is
wird schließlich vorgeschlagen, mindestens eine der bar zerstäubt in die Verbrennungsluft gelangt ist, undFinally, it is proposed that at least one of the bar has reached the combustion air in atomized form, and
treppenartigen Stufen in dem Bereich der Auftreff- zwar durch Randablösung von den der wandverteiltenstair-like steps in the area of the point of impact due to edge detachment from those distributed across the wall
stelle des Kraftstoffstrahles auf die Brennraumwand Auftragung des Kraftstoffes dienenden Kraftstoff-place the fuel jet on the combustion chamber wall application of the fuel serving fuel
zu legen. 25 strahlen. Hierfür kann aber auch ein besonderer,to lay. 25 rays. A special,
Durch die erfindungsgemäße Anordnung wird die nicht weiter dargestellter Kraftstoffstrahl angewendet gestellte Aufgabe voll gelöst. Der Brennraum hat werden. Mit 9, 10, 11 sind die treppenartigen Stufen eine einfache Form, die durch die Stufen entstehen- an der Brennraumwand bezeichnet, die bei dem geden Sekundärwirbel bewirken eine auch bei Verwen- zeigten Ausführungsbeispiel parallel zur Zylinderdung schwersiedenden Kraftstoffen eine ausreichende 3° längsachse liegen. Der sich entlang an der Brenn-Voroxydation und stören, da sie im wesentlichen raumwand ausbreitende Kraftstoffilm 7 überspringt hinter den Stufen liegen, die rotierende Luftströmung beispielsweise beim Passieren der treppenartigen Stufe nicht oder nur unwesentlich. 11 eine kurze Strecke durch den Luftraum 12, umDue to the arrangement according to the invention, the fuel jet, not shown, is used task completely solved. The combustion chamber has to be. With 9, 10, 11 are the stair-like steps a simple shape that is created by the steps on the combustion chamber wall that are used in the Geden Secondary eddies produce a parallel to the cylinder manure, even when the embodiment shown is used high-boiling fuels have a sufficient 3 ° longitudinal axis. The one along the burning pre-oxidation and interfere, since they essentially jump over the fuel film 7 that spreads through the wall of the room behind the steps, the rotating air flow, for example when passing the stair-like step not or only insignificantly. 11 a short distance through the airspace 12 to
Die Erfindung ist in der Zeichnung an Hand eines dann anschließend wieder auf die Brennraumwand zuThe invention is then back to the combustion chamber wall in the drawing on the basis of a
Ausführungsbeispieles schematisch dargestellt. Es 35 gelangen (F i g. 1). Die an dieser Stufe entstehendenExemplary embodiment shown schematically. 35 get there (FIG. 1). Those arising at this stage
zeigt Sekundärwirbel in der kreisenden Verbrennungsluftshows secondary eddies in the circulating combustion air
F i g. 1 einen in einen Kolben angeordneten Brenn- bewirken in Verbindung mit dem vorübergehend vonF i g. 1 a combustion effect arranged in a piston in connection with the temporary of
raum gemäß der Erfindung nach einem Schnitt I-I in der Brennraumwand abgelösten Kraftstoff die ver-space according to the invention after a section I-I in the combustion chamber wall detached fuel the
F i g. 2, stärkte Voroxydation des Kraftstoffes.F i g. 2, strengthened pre-oxidation of fuel.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (4)
mehrere Kraftstoffstrahlen in geschlossener Strahl- Vielmehr hat sich herausgestellt, daß bei einerThe invention relates to a combustion chamber for a thought loses effect. An orderly air-compressing, self-igniting internal combustion mixture and combustion can scarcely be spoken of and arranged in the piston of the machine, so that the process is open to the top and almost all of the combustion air adhering to the compression stroke 55 of the fuel wall application picks up where- advantages are almost lost, especially since the main part of the injected liquid power- rapid fuel detachment in vapor form and immediate substance takes place without prior atomization by one or final mixing with the air,
multiple fuel jets in a closed jet Rather, it has been found that with one
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1957M0064218 DE1526316B2 (en) | 1957-07-06 | 1957-07-06 | COMBUSTION CHAMBER FOR AN AIR-COMPRESSING, SELF-IGNITING COMBUSTION MACHINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1957M0064218 DE1526316B2 (en) | 1957-07-06 | 1957-07-06 | COMBUSTION CHAMBER FOR AN AIR-COMPRESSING, SELF-IGNITING COMBUSTION MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1526316A1 DE1526316A1 (en) | 1969-10-16 |
DE1526316B2 true DE1526316B2 (en) | 1973-07-26 |
Family
ID=7311045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1957M0064218 Granted DE1526316B2 (en) | 1957-07-06 | 1957-07-06 | COMBUSTION CHAMBER FOR AN AIR-COMPRESSING, SELF-IGNITING COMBUSTION MACHINE |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1526316B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2635847C3 (en) * | 1976-08-10 | 1980-02-07 | Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg | Air-compressing, self-igniting, direct-injection internal combustion engine |
DE2753341A1 (en) * | 1977-11-30 | 1979-05-31 | Daimler Benz Ag | Compression ignition IC engine - has trough in piston with recess for each injector jet in wall |
-
1957
- 1957-07-06 DE DE1957M0064218 patent/DE1526316B2/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE1526316A1 (en) | 1969-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 |