DE898093C - Pre-chamber diesel engine - Google Patents
Pre-chamber diesel engineInfo
- Publication number
- DE898093C DE898093C DED1727D DED0001727D DE898093C DE 898093 C DE898093 C DE 898093C DE D1727 D DED1727 D DE D1727D DE D0001727 D DED0001727 D DE D0001727D DE 898093 C DE898093 C DE 898093C
- Authority
- DE
- Germany
- Prior art keywords
- antechamber
- diesel engine
- combustion chamber
- main combustion
- chamber
- 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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/14—Engines characterised by precombustion chambers 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
Es ist bei Vorkammer-Einspritzbrennkraftmaschinen bekannt, im Kolbenboden einen der Vorkammeröffnmng gegenüberliegenden, gegebenenfalls mit dem Kolben verschraubten Einsatz vorzusehen. Dieser Einsatz muß aus einem besonders hochwertigen Baustoff bestehen, da er betriebsmäßig von dem aus der Vorkammer ausblasenden Brennstoff-Luft-Gemisch getroffen wird. Dieses Gemisch wird an dem Einsatz umgelenkt und auf den über dem Arbeitskolben liegenden Brennraum verteilt.It is known in prechamber injection internal combustion engines, in the piston crown one opposite the antechamber opening, possibly screwed to the piston Use to be provided. This insert must be made from a particularly high-quality building material exist because it is operationally dependent on the fuel-air mixture blown out of the antechamber is hit. This mixture is deflected on the insert and on the above Distributed working piston lying combustion chamber.
Gegenstand eines älteren Rechtes und nicht zum Stande der Technik gehörig ist eine Vorkammerdieselmaschine, bei der der gesamte Brennstoff in eine mit dem Hauptbrennraum durch einen Kanal verbundene Vorkammer eingespritzt wird, in welcher ein mit einem Kernstück, versehenes Einsatzstück derart befestigt ist, daß der Vorkammerinhalt durch einen .düsenartig sich zum Austritt verjüngenden Ringkanal ohne scharfe Umlenkungen unmittelbar auf eine Prall- oder Ablenlcspitze des Kolbens auftrifft, durch welche er gleichmäßig über den Hauptbrennraum verteilt wird.Subject of an earlier law and not the state of the art What is needed is a pre-chamber diesel engine with all the fuel in one an antechamber connected to the main combustion chamber is injected through a duct, in which an insert piece provided with a core piece is fastened in such a way that that the antechamber contents through an annular channel tapering like a nozzle towards the outlet without sharp deflections directly onto a baffle or deflecting tip of the piston occurs, through which it is evenly distributed over the main combustion chamber.
Gemäß der Erfindung wird bei einer solchen Vorkammerdieselmaschine die Prall- oder Ablenkspitze durch einen :der Überströmöffnung sein abgerundetes Stirnende zukehrenden, aus korrosionsfestem Stahl oder einer siliziumhaltigen Kupfer-Nickel-Legierung bestehenden -Bolzen .gebildet.According to the invention, in such a pre-chamber diesel engine the baffle or deflection tip through one: the overflow opening is rounded Front facing, made of corrosion-resistant steel or a silicon-containing copper-nickel alloy existing bolts .formed.
Infolge dieser Anordnung wird der aus der Vorkammer ausblasende Vorkammerinhalt an zwei Wärmespeicherkernen, nämlich zuerst an dem Kern in der Vorkammer-Überströmöffnung und alsdann an dein durch den Bolzen gebildeten Speicherkern vorbeigeführt, bevor er in den Hauptbrennra@um bzw. in eine etwa vorhandene Kolbenbodenmulde übertritt. Dadurch erfährt der eingespritzte, flüssige Brennstoff eine besonders gute Auflockerung, was eine rauchlose Verbrennung begünstigt.As a result of this arrangement, the antechamber contents blown out of the antechamber on two heat storage cores, namely first on the core in the antechamber overflow opening and then passed your storage core formed by the bolt before it passes into the main combustion chamber or into any existing piston crown. As a result, the injected, liquid fuel experiences particularly good loosening, which favors smokeless combustion.
In :der Zeichnung ist eine Vorkammer.dieselmaschine mit den Merkmalen gemäß der Erfindung in einem dargestellt, und zwar zeigt die Abbildung einen Längsschnitt durch die Vorkammer und den oberen Teil des Zylinders einer Brennkraftmaschine.In: the drawing is a pre-chamber diesel engine with the characteristics according to the invention shown in one, namely the figure shows a longitudinal section through the prechamber and the upper part of the cylinder of an internal combustion engine.
In dem Kopf eines Zylinders i ist zwischen den aus der Zeichnung nicht ersichtlichen Ein- und Auslaßventilen eine zentrale Vorkammer 2 angeordnet. Den Vorkammerraum 2 schließt ein Einsatzstück 3 ein, welches an seinem dem Brennraum 4 zugekehrt liegenden Ende eine trichterförmige Überströmöffnung 5 aufweist. Zwischen der Überströmöffnung 5 und dem Vorkammerraum 2 ist ein Wärmespeicherkern 6 angeordnet, der gegen .die überströmöffnung 5 in eine Spitze 6a ausläuft. In Höhe des Wärmespeicherkernes ist ein Kranz von Längsbohrungen 7 angeordnet, welche .den Vorkammerraum 2 mit der trichterförmigen Überströmöffnung 5 verbinden. Die Brennstoffeinspritzdüse 8 liegt auf der gleichen Achse der überströmöffnung 5 gerade gegenüber.In the head of a cylinder i is not between those shown in the drawing apparent inlet and outlet valves a central pre-chamber 2 is arranged. The Antechamber space 2 includes an insert piece 3, which at its the combustion chamber 4 facing the end has a funnel-shaped overflow opening 5. Between a heat storage core 6 is arranged in the overflow opening 5 and the antechamber space 2, which runs out against .die overflow opening 5 in a tip 6a. At the level of the heat storage core a ring of longitudinal bores 7 is arranged, which .den antechamber space 2 with the Connect funnel-shaped overflow opening 5. The fuel injector 8 is located on the same axis of the overflow opening 5 just opposite.
Der Arbeitszylinder isst mit einer Laufbüchse 9 versehen, in welcher der Kolben i.o gleitet. Dieser weist einen mittleren, den Kolbenboden durchsetzenden, durchgehenden Bolzen i i auf. Dieser Bolzen ist mittels Gewinde in eine Kolbenbodenbohrung -eingeschraubt, gleichzeitig eingeschrumpft und an der Unterseite des Kolbenbodens verstemmt. Der Bolzen besteht aus einem korrosionsfesten Stahl oder einer siliziumhaltigen Kupfer-Nickel-Legierung. Weiterhin ist der Kolbenboden mit einer flachen Ringmulde 12 versehen, deren innerer Rand unmittelbar an .den Rand des pilzförmig abgerundeten Einsatzbolzens anschließt, derart, daß sich eine muldenartige Kolbenbodenfläche mit einer mittleren Erhebung ergibt.The working cylinder is provided with a liner 9 in which the piston slides OK. This has a central, the piston crown penetrating, through bolt i i. This bolt is threaded into a piston crown bore - screwed in, shrunk in at the same time and on the underside of the piston crown caulked. The bolt consists of a corrosion-resistant steel or a silicon-containing one Copper-nickel alloy. Furthermore, the piston crown has a flat annular bowl 12 provided, the inner edge of which is immediately on .den the edge of the mushroom-shaped rounded Insert bolt connects in such a way that there is a trough-like piston crown surface with a medium elevation results.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED1727D DE898093C (en) | 1938-02-13 | 1938-02-13 | Pre-chamber diesel engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED1727D DE898093C (en) | 1938-02-13 | 1938-02-13 | Pre-chamber diesel engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE898093C true DE898093C (en) | 1953-11-26 |
Family
ID=7029473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED1727D Expired DE898093C (en) | 1938-02-13 | 1938-02-13 | Pre-chamber diesel engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE898093C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3111117A (en) * | 1961-11-06 | 1963-11-19 | Steyr Daimler Puch Ag | Air-compressing, self-igniting, pre-combustion chamber injection type, internal-combustion engine |
DE1292931B (en) * | 1961-12-20 | 1969-04-17 | Caterpillar Tractor Co | Air-compressing internal combustion piston engine with fuel injection |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE486963C (en) * | 1923-07-11 | 1929-11-28 | Custav Mees | Internal combustion engine with a combustion chamber and a gasification bowl attached to the piston and acting like a displacer |
DE498699C (en) * | 1930-05-26 | Fried Deckel | Pistons for internal combustion engines with self-ignition | |
DE568960C (en) * | 1929-08-11 | 1933-01-26 | Siemens & Halske Akt Ges | Fuel nozzle |
DE624529C (en) * | 1933-11-09 | 1936-01-23 | Daimler Benz Akt Ges | Fuel injection device for internal combustion engines |
DE706134C (en) * | 1936-11-05 | 1941-05-19 | Daimler Benz Akt Ges | Pre-chamber diesel engine according to patent 608479, in which the entire fuel is injected into the pre-chamber |
-
1938
- 1938-02-13 DE DED1727D patent/DE898093C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE498699C (en) * | 1930-05-26 | Fried Deckel | Pistons for internal combustion engines with self-ignition | |
DE486963C (en) * | 1923-07-11 | 1929-11-28 | Custav Mees | Internal combustion engine with a combustion chamber and a gasification bowl attached to the piston and acting like a displacer |
DE568960C (en) * | 1929-08-11 | 1933-01-26 | Siemens & Halske Akt Ges | Fuel nozzle |
DE624529C (en) * | 1933-11-09 | 1936-01-23 | Daimler Benz Akt Ges | Fuel injection device for internal combustion engines |
DE706134C (en) * | 1936-11-05 | 1941-05-19 | Daimler Benz Akt Ges | Pre-chamber diesel engine according to patent 608479, in which the entire fuel is injected into the pre-chamber |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3111117A (en) * | 1961-11-06 | 1963-11-19 | Steyr Daimler Puch Ag | Air-compressing, self-igniting, pre-combustion chamber injection type, internal-combustion engine |
DE1292931B (en) * | 1961-12-20 | 1969-04-17 | Caterpillar Tractor Co | Air-compressing internal combustion piston engine with fuel injection |
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