DE471839C - Self-igniting internal combustion engine, in particular for airless injection, with a chamber arranged in the piston and forming part of the compression space - Google Patents
Self-igniting internal combustion engine, in particular for airless injection, with a chamber arranged in the piston and forming part of the compression spaceInfo
- Publication number
- DE471839C DE471839C DEB124201D DEB0124201D DE471839C DE 471839 C DE471839 C DE 471839C DE B124201 D DEB124201 D DE B124201D DE B0124201 D DEB0124201 D DE B0124201D DE 471839 C DE471839 C DE 471839C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- internal combustion
- chamber
- combustion engine
- insert body
- 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
- F02B21/00—Engines characterised by air-storage chambers
- F02B21/02—Chamber shapes or constructions
-
- 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
- F02B23/0603—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 at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
-
- 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
- F02B23/0633—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 almost completely enclosed in the piston, i.e. having a small inlet in comparison to its volume
-
- 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
- F02B2275/16—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)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
Selbstzündende Einspritzbrennkraftmaschine, insbesondere für luftlose Einspritzung, mit einer im Kolben angeordneten, einen Teil des Verdichtungsraumes bildenden Kammer Die Erfindung bezieht sich auf eine selbstzündende Einspritzbrennkraftmaschine, insbesondere für luftlose Einspritzung, mit einer im Kolben angeordneten, einen Teil des Verdichtungsraumes bildenden Kammer.Self-igniting internal combustion engines, especially for airless ones Injection, with one arranged in the piston, part of the compression chamber forming chamber The invention relates to a compression ignition internal combustion engine, especially for airless injection, with one arranged in the piston, one Part of the compression chamber forming the chamber.
Gemäß der Erfindung ist die im Kolben angeordnete Kammer als ein hohler Einsatzkörper ausgebildet und gleichzeitig an der Übergangsstelle zwischen dieser Kammer und dem Verbrennungsraum im Zylinder eine Drosselstelle in an sich bekannter Weise angeordnet.According to the invention, the chamber arranged in the piston is a hollow one Insert body formed and at the same time at the transition point between this Chamber and the combustion chamber in the cylinder have a throttle point in a known manner Arranged way.
Die einzelnen Merkmale der Erfindung sind vorbekannt oder vorpatentiert. So ist z. B. ihr erstes Merkmal, wonach die im Kolben angeordnete Kammer als ein hohler Einsatzkörper ausgebildet ist, der sich, ohne zu reißen, unter den Wärmeeinflüssen ausdehnen kann, durch das Patent 427 566 geschützt. Für Motoren der im ersten Absatz als bekannt vorausgesetzten Art ist auch schon vorgeschlagen worden, zwischen der Kolbenkammer und dem Zylinderraum eine Drosselstelle anzuordnen. Bei diesen bekannten Vorschlägen werden jedoch die Wände des Kolbenhohlraums nicht durch einen Einsatzkörper gebildet, sondern sie bestehen aus dem gleichen Stück wie die übrigen Kolbenwände.The individual features of the invention are previously known or pre-patented. So is z. B. their first feature, according to which the chamber arranged in the piston as a hollow insert body is formed, which, without tearing, under the influence of heat can expand, protected by patent 427 566. For engines the one in the first paragraph as known species has also been suggested between the To arrange piston chamber and the cylinder space a throttle point. With these well-known However, the walls of the piston cavity are not proposed by an insert body formed, but they consist of the same piece as the rest of the piston walls.
Die Erfindung besteht nun in der zweckmäßigen Vereinigung der soeben geschilderten bekannten Bauart mit der durch- das Patent 4.-27 566 ge,;chiitzten. Auf der Zeichnung sind in den ersten vier Abbildungen vier Ausführungsbeispiele des Erfindungsgegenstandes im Längsschnitt durch einen Zylinder und Kolben dargestellt.The invention now consists in the expedient combination of the above described known design with the patent 4.-27 566 ge,; chiitzten. On the drawing, there are four exemplary embodiments in the first four figures of the subject invention shown in longitudinal section through a cylinder and piston.
Die Abb. 5 und 6 zeigen eine Oberansicht des Kolbens von zwei weiteren Ausführungsbeispielen.Figures 5 and 6 show a top view of the piston of two others Embodiments.
Bei allen Beispielen bezeichnet a den Kolben, b den Zylinder und c die Brennstoffeinspritzdüse, die sowohl für luftlose Einspritzung als auch für Einspritzung des Brennstoffs durch Druckluft eingerichtet sein kann. Die Kammer ist enthalten in einem glockenförmigen Gefäß k, das in eine Höhlung des Kolbenbodens so eingesetzt ist, daß zwischen der Innenwand des Kolbenbodens und der Außenwand des Gefäßes ein Luft- oder Isolierraum h verbleibt. Das Gefäß liegt dabei mit einem an seinem äußeren Rand vorgesehenen Ringbund e auf einem entsprechenden Bund am Kolben auf und wird durch einen über den Bund c greifenden überwurf- oder Paßring d am Kolben befestigt. Zwischen dem Paßring und dem Bunde einerseits und der Auflagefläche am Kolben und dem Bund andererseits können Dichtungen eingelegt sein.In all examples, a denotes the piston, b the cylinder and c the fuel injector, which is suitable for both airless injection and injection the fuel can be set up by compressed air. The chamber is included in a bell-shaped vessel k, which is inserted into a cavity in the piston crown is that between the inner wall of the piston head and the outer wall of the vessel Air or isolation space h remains. The vessel lies with one on its outer one Edge provided annular collar e on a corresponding collar on the piston and is attached to the piston by a union ring or fitting ring d reaching over the collar c. Between the fitting ring and the collar on the one hand and the bearing surface on the piston and the federal government on the other hand, seals can be inserted.
Beim ersten Beispiel nach Abb. i ragt die Einspritzdüse in der Nähe der inneren Totlage des Kolbens, also wenn die Zündung einsetzt, in die Öffnung des Gefäßes k hinein, dabei- zwischen sich und der Öffnung einen Drosselquerschnitt frei lassend, so daß in dieser Stellung die Kammer mit dem Zylinderraum i nur noch durch diesen Drosselquerschnitt verbunden ist.In the first example according to Fig. I, the injection nozzle protrudes nearby the internal dead position of the piston, i.e. when the ignition starts, into the opening of the vessel k, with one between itself and the opening Throttle cross-section Leaving it free, so that in this position the chamber with the cylinder space i is only is connected by this throttle cross-section.
Beim zweiten Beispiel nach Abb.2 liegt, im Gegensatz zum ersten, ein unveränderlicher Drosselquerschnitt zwischen der Kammer und dem Zylinderraum nicht nur in der inneren Totlage, sondern dauernd. Eingespritzter Brennstoff gelangt dabei zusammen mit Luft zum Drosselquerschnitt. Um eine recht innige Vermischung von Brennstoff und Luft zu erzielen, ist vor der Drosselstelle ein trichterförmiger Mischraum g vorgesehen. Der Überwurfring d ist hier außerdem noch als Deckel für das die Kammer enthaltende Gefäß ausgebildet und enthält den aus nur einem Loch f bestehenden Drosselquerschnitt. Brennstoffdüse und Drosselstelle sind gleichachsig angeordnet, um den Brennstoff in den Kern der durch die Drosselstelle gehenden Strömung zu spritzen.In the second example according to Fig. 2, in contrast to the first, there is a unchangeable throttle cross-section between the chamber and the cylinder space only in the inner dead position, but continuously. Injected fuel gets there together with air to the throttle cross-section. A very intimate mixture of fuel and to achieve air, a funnel-shaped mixing space g is in front of the throttle point intended. The coupling ring d is also used here as a cover for the chamber containing vessel and contains the throttle cross-section consisting of only one hole f. The fuel nozzle and throttle point are coaxially arranged around the fuel to inject into the core of the flow going through the throttle point.
Beim dritten Beispiel nach Abb. 3 bildet eine Einschnürung am Einsatzkörper die Drosselstelle. Das ist der einzige Unterschied gegenüber dem Beispiel nach Abb. 2, wo die Drosselstelle in einem auf den Einsatzkörper aufgesetzten Deckel enthalten ist.In the third example according to Fig. 3, a constriction is formed on the insert body the throttle point. That is the only difference compared to the example in Fig. 2, where the throttle point is contained in a cover placed on the insert body is.
Beim vierten Beispiel nach Abb. i wird, ähnlich wie beim ersten, die Drosselstelle als ein ringförmiger Spalt erst gegen Ende des Verdichtungshubes gebildet, und zwar zwischen dem vorspringenden Düsenstock und dem Deckel d.In the fourth example according to Fig. I, similar to the first, the Throttle point formed as an annular gap only towards the end of the compression stroke, namely between the projecting nozzle assembly and the cover d.
Der Drosselquerschnitt kann abweichend von den seither beschriebenen Beispielen aus mehreren engen Löchern sich zusammensetzen, wie Abb. 5 zeigt, oder er kann, wie beim sechsten Ausführungsbeispiel nach Abb.6 aus einer Anzahl gerader oder gekrümmter Schlitze bestehen.The throttle cross-section can differ from those described since Examples composed of several narrow holes, as shown in Fig. 5, or As in the sixth embodiment according to Fig. 6, it can be made up of a number of straight lines or curved slots.
Das Gefäß k kann sich, hauptsächlich infolge der bei den Ausführungsbeispielen gezeigten Randeinspannung, unter dem Einfluß der Verbrennungshitze nach allen Richtungen ungehindert ausdehnen, ohne dabei auf die Kolbenwände einzuwirken. Risse im Einsatz und Kolbenboden werden dadurch vermieden.The vessel k can, mainly due to the in the embodiments edge restraint shown, under the influence of the heat of combustion in all directions expand unhindered without affecting the piston walls. Cracks in use and piston crown are avoided.
Die Erfindung eignet sich für selbstzündende Olmotoren mit oder ohne Anlaßhilfszündung. Ob der Motor in Zweitakt, Viertakt oder sonst einem Verfahren arbeitet, ist für. den Erfindungsgegenstand belanglos.The invention is suitable for self-igniting oil engines with or without Auxiliary ignition. Whether the engine is in two-stroke, four-stroke or some other process works is for. the subject matter of the invention is irrelevant.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB124201D DE471839C (en) | 1926-02-18 | 1926-02-18 | Self-igniting internal combustion engine, in particular for airless injection, with a chamber arranged in the piston and forming part of the compression space |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB124201D DE471839C (en) | 1926-02-18 | 1926-02-18 | Self-igniting internal combustion engine, in particular for airless injection, with a chamber arranged in the piston and forming part of the compression space |
Publications (1)
Publication Number | Publication Date |
---|---|
DE471839C true DE471839C (en) | 1929-02-16 |
Family
ID=6996162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB124201D Expired DE471839C (en) | 1926-02-18 | 1926-02-18 | Self-igniting internal combustion engine, in particular for airless injection, with a chamber arranged in the piston and forming part of the compression space |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE471839C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3301724A1 (en) * | 1983-01-20 | 1984-07-26 | Klöckner-Humboldt-Deutz AG, 5000 Köln | PISTON FOR AN INTERNAL COMBUSTION ENGINE WITH COMBUSTION TANK IN THE PISTON BOTTOM |
EP0598605A1 (en) * | 1992-11-19 | 1994-05-25 | Isuzu Ceramics Research Institute Co., Ltd. | Pre-chamber type engine |
EP0780554A1 (en) * | 1995-12-20 | 1997-06-25 | Isuzu Motors Limited | Piston structure with heat insulated combustion chamber |
-
1926
- 1926-02-18 DE DEB124201D patent/DE471839C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3301724A1 (en) * | 1983-01-20 | 1984-07-26 | Klöckner-Humboldt-Deutz AG, 5000 Köln | PISTON FOR AN INTERNAL COMBUSTION ENGINE WITH COMBUSTION TANK IN THE PISTON BOTTOM |
EP0598605A1 (en) * | 1992-11-19 | 1994-05-25 | Isuzu Ceramics Research Institute Co., Ltd. | Pre-chamber type engine |
US5425337A (en) * | 1992-11-19 | 1995-06-20 | Izusu Ceramics Research Institute Co., Ltd. | Pre-chamber type engine |
EP0780554A1 (en) * | 1995-12-20 | 1997-06-25 | Isuzu Motors Limited | Piston structure with heat insulated combustion chamber |
US5738066A (en) * | 1995-12-20 | 1998-04-14 | Isuzu Motors Limited | Piston structure with heat insulated combustion chamber |
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