DE856708C - Internal combustion engine working with air compression and self-ignition - Google Patents
Internal combustion engine working with air compression and self-ignitionInfo
- Publication number
- DE856708C DE856708C DEG4525A DEG0004525A DE856708C DE 856708 C DE856708 C DE 856708C DE G4525 A DEG4525 A DE G4525A DE G0004525 A DEG0004525 A DE G0004525A DE 856708 C DE856708 C DE 856708C
- Authority
- DE
- Germany
- Prior art keywords
- combustion chamber
- fuel
- air
- compression
- internal 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.)
- Expired
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
- F02B23/0678—Unconventional, complex or non-rotationally symmetrical shapes of the combustion space, e.g. flower like, having special shapes related to the orientation of the fuel spray jets
- F02B23/069—Unconventional, complex or non-rotationally symmetrical shapes of the combustion space, e.g. flower like, having special shapes related to the orientation of the fuel spray jets characterised by its eccentricity from 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
- F02B2275/16—Indirect injection
-
- 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
- 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
Mit Luftverdichtung und Selbstzündung arbeitende Brennkraftmaschine Die übliche Anordnung des Brennraumes von Dieselmaschinen im Zylinderkopf ergibt, daB die Unterbringung genügend großer Ventile und die Kühlung der Einspritzdüse Schwierigkeiten bereitet.Internal combustion engine working with air compression and compression ignition The usual arrangement of the combustion chamber of diesel engines in the cylinder head results in that the accommodation of sufficiently large valves and the cooling of the injection nozzle Causes difficulties.
Zur Vereinfachung des Zylinderkopfe; und il rn größere Ein- und Auslaßventile in ihm unterzubringen sowie eine gute Kühlung des Einspritzventils zu ermöglichen, hat man bereits den Brennraum in den Kolben verlegt und ihn durch einen Kanal im Kolbenboden mit dem Zylinderraum verbunden; dem Brennraum wurde bei der bekannten Anordnung kugelige, elliptische oder eiförmige -Gestalt gegeben. Eine zylindrische Form des Brennraumes im Kolbenhoden selbst wurde durch die britische Patentschrift 394403 bekannt. Die verwendeten 1,ormeii des Brennraumes sind nicht als die günstigsten anzusprechen, da bei ihnen die vorbeistreichende Luft nicht in den innigsten Kontakt mit (lern eingespritzten Brennstoffstrahl in seiner weitesten Entwicklung tritt, sondern zum Teil ungenutzt seitlich an ihm vorbeistreicht.To simplify the cylinder head; and il rn larger inlet and outlet valves in it to accommodate and to allow a good cooling of the injection valve, it has already been transferred to the combustion chamber in the piston and connected to it through a duct in the piston crown with the cylinder space; In the known arrangement, the combustion chamber was given a spherical, elliptical or egg-shaped shape. A cylindrical shape of the combustion chamber in the piston testicle itself became known from British patent specification 394403. The 1, standards used in the combustion chamber are not to be regarded as the most favorable, since the air passing by does not come into intimate contact with the injected fuel jet in its furthest development, but rather, in some cases, sweeps past it unused.
Man hat ferner, wie durch die französische Patentschrift 843 6o6 bekanntgeworden ist, einem im Zylinderkopf angeordneten Brennraum die Form einer Scheibe gegeben, in welcher der eingespritzte Brennstoff vom Luftstrom quer durchsetzt wird. jedoch wurde diese Anordnung bei Unterbringung des Brennraumes im Kolben noch nicht verwendet, da die Querdurchdringung des Brennstofstrables vom Luftstrom nicht ohne Komplikationen möglich ist. Es wurde nun eine Lösung gefunden, welche die Mängel der britischen Patentschrift nicht zeigt und gegenüber der Vorrichtung nach der französischen Patentschrift eine unterschiedliche Anordnung des Brennraumes und eine andere Beaufschlagung derselben mit Brennstoff und Luft bei gleichgerichteter Brennstoff- und Lufteinführung, aber unter maximaler Durchmischung beider Reaktionsteilnehmer mit Erfolg verwendet.It has also been made known by the French patent specification 843 606 is given the shape of a disk to a combustion chamber arranged in the cylinder head, in which the injected fuel is crossed by the air flow. However this arrangement has not yet been used when the combustion chamber is located in the piston, because the air flow does not penetrate the fuel duct without complications is possible. A solution has now been found which addresses the shortcomings the British patent does not show and compared to the device according to the French patent a different arrangement of the combustion chamber and another loading of the same with fuel and air with the same direction Introduction of fuel and air, but with maximum mixing of both reactants used with success.
Es wird nämlich in einer mit Luftverdichtung und Selbstzündung arbeitenden Brennkraftmaschine, bei der sich am Ende des Verdichtungshubes im wesentlichen die gesamte Verbrennungsluft in einem im Kolbenboden angeordneten, mit dem Hubraum über einen tangential in ihn einmündenden Kanal in Verbindung stehenden Brennraum in wirbelnder Bewegung befindet und bei der gegen Ende des Verdichtungshubes mittels einer schräg im Zylinderkopf angeordneten Einspritzdüse durch den Kanal hindurch exzentrisch zur Brennraummitte sowie gleichgerichtet mit der Luftströmung Kraftstoff derart eingespritzt wird, daß ein Aufspritzen des Kraftstoffes auf die Kammerwand vermieden ist, erfindungsgemäß der Brennraum scheibenförmig ausgebildet und so angeordnet, daß er mit dem Hubraum über einen schlitzförmigen Kanal in Verbindung steht, dessen Breite gleich dem Durchmesser des Kraftstoffstrahles im Gebiet seiner größten Entwicklung ist.It is namely in a working with air compression and auto-ignition Internal combustion engine, in which at the end of the compression stroke essentially the entire combustion air in one arranged in the piston crown, with the displacement above a tangential duct opening into it in communicating combustion chamber whirling movement is located and at the end of the compression stroke means an injection nozzle arranged at an angle in the cylinder head through the duct eccentric to the center of the combustion chamber and aligned with the fuel air flow is injected in such a way that the fuel is sprayed onto the chamber wall is avoided, according to the invention, the combustion chamber is disc-shaped and arranged in such a way that that it is in communication with the cubic capacity via a slot-shaped channel, of which Width equal to the diameter of the fuel jet in the area of its greatest development is.
Die britische Patentschrift 394403 zeigt zwar auch eine mit der Verbrennungsluft gleichgerichtete Einführung des Brennstoffstrahles, jedoch wird dieser nicht in seiner vollen Breite vom etwa gleichgerichtet einströmenden Luftstrahl durchsetzt, sonclern vermischt sicherst im weiteren Verlauf mit der Luft, was den Verbrennungsvorgang beeinträchtigt.British patent specification 394403 also shows one with the combustion air rectified introduction of the fuel jet, but this is not in its full width is penetrated by the air jet flowing in approximately in the same direction, sonclern only mixes with the air in the further course of the combustion process impaired.
Durch die erfindungsgemäße Anordnung wird für eine äußerst innige Berührung der wirbelnden Luft mit den Brennstoffteilchen gesorgt. Die Düse ist im Zylinderkopf über dem Schlitz im Kolbenboden so angeordnet, daß der Brennstoffstrahl nicht durch die Mittelachse des scheibenförmigen Brennraumes geht, sondern seitlich des Mittelpunktes der Brennkammer und des Schlitzes eindringt, was ebenfalls eine Durchwirbelung des Brennstoffes mit der Luft begünstigt.The inventive arrangement is for an extremely intimate The swirling air comes into contact with the fuel particles. The nozzle is in Cylinder head arranged over the slot in the piston crown so that the fuel jet does not go through the central axis of the disc-shaped combustion chamber, but laterally penetrates the center of the combustion chamber and the slot, which is also a Swirling the fuel with the air favors.
Der scheibenförmige Brennraum nimmt abgesehen von dem durch Zylinderkopf und Kolbenboden begrenzten Raum die gesamte Verbrennungsluft auf. Durch die entsprechende Bemessung des Schlitzes wird erreicht, daß beim Aufwärtsgang des Kolbens die Luft durch den Schlitz in einer Breite in die Kammer eintritt, welche der breitesten Entwicklung des Brennstoffstrahles entspricht. Dadurch, daß der Brennstoffstrahl seitlich in die Kammer eingespritzt wird, wird der Hauptluftstrom schräg in die Brennstoffkammer einströmen und alle Brennstoffteilchen erfassen.The disc-shaped combustion chamber takes apart from that by the cylinder head and piston crown limited the space for all the combustion air. Through the appropriate Dimensioning of the slot is achieved that when the piston moves upwards, the air enters the chamber through the slot at a width which is the widest Development of the fuel jet corresponds. Because the fuel jet is injected into the side of the chamber, the main air flow is inclined into the Flow into the fuel chamber and capture all fuel particles.
Durch die scheibenförmige Ausbildung des Brennraumes wird erreicht, daß kein erheblicher Teil der Luft ungenutzt seitlich am Brennstoffstrahl vorbeistreicht und daß der Brennstoffstrahl nur an der Stelle seiner größten Entwicklung auf einer Länge, die der Längsabmessung des Kanalquerschnittes entspricht, vollkommen vom Luftstrom getroffen und durchströmt wird.The disc-shaped design of the combustion chamber achieves that no significant part of the air sweeps past the side of the fuel jet unused and that the fuel jet is only at the point of its greatest development on one Length, which corresponds to the longitudinal dimension of the channel cross-section, completely from Air flow is hit and flowed through.
Dadurch, daß der Brennstoffstrahl von dem Luftstrom in dem Gebiet seiner weitesten Entwicklung getroffen wird, wird durch die innige Vermischung und volle Ausnutzung der Verbrennungsluft ein hoher mittlerer effektiver Druck und ein gutes Anspringen des Motors erreicht, ohne daß der Druck im Zylinder die zulässige Höhe überschreitet.By allowing the fuel jet from the air flow in the area its furthest development is taken by the intimate mixing and full utilization of the combustion air a high mean effective pressure and a Good engine start-up achieved without the pressure in the cylinder being the permissible Height exceeds.
In der Zeichnung ist ein Kolben der erfindungsgemäßen. Dieselmaschine schematisch dargestellt. Fig. i zeigt den Verbrennungsraum mit Kolben im Schnitt, Fig. 2 den Kolben in Draufsicht.In the drawing, a piston is the one according to the invention. Diesel engine shown schematically. Fig. I shows the combustion chamber with piston in section, Fig. 2 shows the piston in plan view.
Im Kolben a ist die Brennkammer b angeordnet. Diese besitzt im Schnitt betrachtet eine scheibenförmige Gestalt und steht durch einen länglichen Schlitz c mit dem Zylinderraum d in Verbindung. Das Einspritzventil e ist im Zylinderkopf f etwas geneigt angeordnet. Der Brennstoffstrahl durchdringt den Schlitz c an seinem Ende, also seitlich des Kammermittelpunktes, so daß nur ein Teil des Brennraumes vom Brennstoffstrahl bestrichen wird. Die Breite des Schlitzes c entspricht dem größten theoretischen Durchmesser des Brennstoffstrahles, also seiner weitesten Entwicklung.The combustion chamber b is arranged in the piston a. When viewed in section, this has a disk-like shape and is connected to the cylinder space d through an elongated slot c. The injection valve e is arranged at a slight incline in the cylinder head f. The fuel jet penetrates the slot c at its end, that is to say to the side of the center of the chamber, so that only part of the combustion chamber is swept by the fuel jet. The width of the slot c corresponds to the largest theoretical diameter of the fuel jet, i.e. its furthest development.
Die Erfindung läßt sich vorteilhaft bei Zweitakt-und Viertaktmotoren anwenden.The invention can be used advantageously in two-stroke and four-stroke engines use.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG4525A DE856708C (en) | 1950-11-09 | 1950-11-09 | Internal combustion engine working with air compression and self-ignition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG4525A DE856708C (en) | 1950-11-09 | 1950-11-09 | Internal combustion engine working with air compression and self-ignition |
Publications (1)
Publication Number | Publication Date |
---|---|
DE856708C true DE856708C (en) | 1952-11-24 |
Family
ID=7117430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG4525A Expired DE856708C (en) | 1950-11-09 | 1950-11-09 | Internal combustion engine working with air compression and self-ignition |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE856708C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1042948B (en) * | 1957-09-19 | 1958-11-06 | Maschf Augsburg Nuernberg Ag | Air-compressing, self-igniting piston internal combustion engine |
WO2011082788A3 (en) * | 2009-12-17 | 2011-10-20 | Ks Kolbenschmidt Gmbh | Design of combustion chamber bowls in pistons for internal combustion engines |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE485463C (en) * | 1924-07-04 | 1929-10-31 | Acro Akt Ges | Self-igniting oil engine with a cavity in the piston |
GB394403A (en) * | 1932-01-09 | 1933-06-29 | Aveling & Porter Ltd | Improvements in or relating to internal-combustion engines |
FR843606A (en) * | 1937-10-01 | 1939-07-06 | Gu Ldner Motoren Werke | Diesel motor |
DE713618C (en) * | 1935-10-11 | 1941-11-11 | Maschf Augsburg Nuernberg Ag | Self-igniting, air-compressing four-stroke internal combustion engine with valves hanging in the cylinder cover |
-
1950
- 1950-11-09 DE DEG4525A patent/DE856708C/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE485463C (en) * | 1924-07-04 | 1929-10-31 | Acro Akt Ges | Self-igniting oil engine with a cavity in the piston |
GB394403A (en) * | 1932-01-09 | 1933-06-29 | Aveling & Porter Ltd | Improvements in or relating to internal-combustion engines |
DE713618C (en) * | 1935-10-11 | 1941-11-11 | Maschf Augsburg Nuernberg Ag | Self-igniting, air-compressing four-stroke internal combustion engine with valves hanging in the cylinder cover |
FR843606A (en) * | 1937-10-01 | 1939-07-06 | Gu Ldner Motoren Werke | Diesel motor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1042948B (en) * | 1957-09-19 | 1958-11-06 | Maschf Augsburg Nuernberg Ag | Air-compressing, self-igniting piston internal combustion engine |
WO2011082788A3 (en) * | 2009-12-17 | 2011-10-20 | Ks Kolbenschmidt Gmbh | Design of combustion chamber bowls in pistons for internal combustion engines |
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