DE972406C - Self-igniting, air-compressing injection internal combustion engine - Google Patents

Self-igniting, air-compressing injection internal combustion engine

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Publication number
DE972406C
DE972406C DEL12120A DEL0012120A DE972406C DE 972406 C DE972406 C DE 972406C DE L12120 A DEL12120 A DE L12120A DE L0012120 A DEL0012120 A DE L0012120A DE 972406 C DE972406 C DE 972406C
Authority
DE
Germany
Prior art keywords
published
combustion engine
internal combustion
air
injection internal
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
Application number
DEL12120A
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German (de)
Inventor
Willy Lehmann
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Individual
Original Assignee
Individual
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.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to DEL12120A priority Critical patent/DE972406C/en
Application granted granted Critical
Publication of DE972406C publication Critical patent/DE972406C/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00Engines characterised by precombustion chambers
    • F02B19/14Engines characterised by precombustion chambers with compression ignition
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00Engines characterised by precombustion chambers
    • F02B2019/006Engines characterised by precombustion chambers with thermal insulation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • 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 bezieht sich auf luft- oder wassergekühlte, luftverdichtende #FEinspritzbrennkraftmaschinen mit Selbstzündung mit einer im Zylinderkopf oder Zylinderkörper eingegossenen, aus dünnwandigem, warmfestem Metall erstellten Brennkammer scheiben- oder kugelähnlicher Form, die auf den Außenflächen eine wärmedämmende Schicht trägt. Durch den Verbindungskanal strömt am Ende des Verdichtungshubes der größte Teil der Verbrennungsluft vom Zylinderraum in die Kammer, wobei der Kammerinhalt in wirbelnde oder drehende Bewegung kommt und in den mittels einer Einspritzdüse Brennstoff eingestäubt wird.The invention relates to air- or water-cooled, air-compressing #FEinjection engines with compression ignition with one in the cylinder head or Cylinder body cast in, made of thin-walled, heat-resistant metal disk-like or ball-like shape, which has a heat-insulating Layer wears. At the end of the compression stroke, the largest part of the combustion air from the cylinder space into the chamber, whereby the chamber contents comes in a whirling or rotating motion and in the by means of an injection nozzle Fuel is dusted.

Es ist bekannt, Brennkammern aus dünnwandigem, hitzebeständigem Material herzustellen und nach der Bearbeitung des Zylinders oder Kopfes die ebenfalls bearbeitete Kammer in den dafür vorgesehenen Kopfraum wärmeisoliert einzubauen. Durch die schwierige Bearbeitung und die bei kleinen Motoren hinzukommenden engen Raumverhältnisse des Zylinderkopfes ist diese Art der wärmeisolierten Kammer sehr unwirtschaftlich und führt zu komplizierten Verhältnissen.It is known that combustion chambers made of thin-walled, heat-resistant material and after machining the cylinder or head the machined one The chamber must be installed in a heat-insulated manner in the head space provided for this purpose. Because of the difficult Machining and the narrow space conditions of the Cylinder head, this type of thermally insulated chamber is very uneconomical and leads to complicated relationships.

Es ist weiter bekannt, die Brennkammer als starkwandiges, besonderes Bauteil mit einer außen aufgebrachten Wärmeisolierung aus Graphit oder keramischem Stoff zu versehen, bevor die Brennkammer in den Zylinderkopf eingegossen ,wird. Diese Kammern benötigen eine sehr große Wärmemenge und lange Aufheizzeit vor dem Motorstart. um wirksam zu sein.It is also known that the combustion chamber is thick-walled and special Component with an externally applied thermal insulation made of graphite or ceramic Providing fabric before the combustion chamber is poured into the cylinder head. These chambers require a very large amount of heat and a long heating time before Engine start. to be effective.

Vorliegende Erfindung behebt diese Nachteile durch die Vereinigung zweier Merkmale: a) besonders dünnwandiger Hohlkörper, b) Isolierschicht, durch chemische, galvanische oder Wärmebehandlung aus dem Werkstoff der Kammer selbst gebildet.The present invention overcomes these disadvantages through the association two features: a) particularly thin-walled hollow body, b) insulating layer, through chemical, galvanic or heat treatment from the material of the chamber itself educated.

In Erfüllung dieser Erfindung wird in die Form des zu gießenden Zylinderkopfes vor dem Guß ein dünnwandiger, also unstabiler, aus warmfestem Material hergestellter Hohlkörper eingesetzt. Die Außenflächen dieses Hohlkörpers tragen eine wärmeisolierende Schicht, die einerseits die Einschmelzung des. dünnwandigen Körpers verhindert und andererseits nach dem Erkalten des Gußstückes die erwünschte Wärmedämmung ergibt. Diese Isolierschicht ist durch chemische, galvanische oder Wärmebehandlung aus dem Werkstoff der Kammer selbst gebildet, wozu auch die normale Oxydhaut des Hohlkörperwerkstoffs zu rechnen ist. Die Abstützung des dünnwandigen Hohlkörpers gegen den hohen Innendruck im Betrieb des Motors übernimmt der die Brennkammer umschließende Gußkörper.In accomplishing this invention is in the shape of the cylinder head to be cast before casting, a thin-walled, i.e. unstable, one made of heat-resistant material Hollow body used. The outer surfaces of this hollow body carry a heat-insulating one Layer which on the one hand prevents the melting down of the thin-walled body and on the other hand, the desired thermal insulation results after the casting has cooled down. This insulating layer is made of the chemical, galvanic or heat treatment Material of the chamber itself is formed, including the normal oxide skin of the hollow body material is to be expected. The support of the thin-walled hollow body against the high internal pressure During the operation of the engine, the cast body surrounding the combustion chamber takes over.

Zur weiteren Ausgestaltung der Erfindung werden statt des Hohlkörpers nur Teile eines solchen eingegossen. In diesem Fall werden nur die Stellen gegen Wärmeabwanderung geschützt, die bevorzugt von der schnell strömenden, verdichteten Luft bestrichen werden.For a further embodiment of the invention, instead of the hollow body only parts of such a poured in. In this case, only the posts are against Protected heat leakage, which is preferred by the fast-flowing, compacted Air can be swept.

In beiden Fällen nimmt die Kammerauskleidung infolge der geringen Masse schon während der stets kurz bemessenen Anwärmezeit Temperatur an, während die Isolierschicht die Ableitung der eben aufgenommenen Wärme an die großen Gußmassen des Zylinderkopfes oder des Zylinders verhindert.In both cases, the chamber lining decreases as a result of the low Mass already during the always short heating time temperature, during the insulating layer dissipates the heat that has just been absorbed to the large casting compounds the cylinder head or the cylinder prevented.

Abb. i zeigt den oberen Teil des Zylinders i mit Zylinderkopfe im senkrechtenSchnitt. DerArbeitskoIben 3 schiebt im oberen Totpunkt fast die gesamte Brennluft aus dem Zylinder über den Kammerkanal 4 in die Kammer 5. Der eingegossene dünnwandige Hohlkörper 6 (Abb. i und 2) trägt außen die Isolierschicht 7. In dem Schnitt (Abb. 3) senkrecht zur Einspritzrichtung der Düse ist beispielsweise eine scheibenartige Kammer gezeigt; hier ist die wärmeisolierte Auskleidung 6" nur im Kanal 4a und am Kammerumfang bei 8 angeordnet, also an den Stellen der größten Strömungsgeschwindigkeit.Fig. I shows the upper part of cylinder i with cylinder heads in vertical section. The working piston 3 pushes almost all of it in the top dead center Combustion air from the cylinder via the chamber channel 4 into the chamber 5. The poured thin-walled hollow body 6 (Fig. i and 2) carries the insulating layer 7 on the outside Section (Fig. 3) perpendicular to the injection direction of the nozzle is an example disc-like chamber shown; here the thermally insulated liner is 6 "only in Channel 4a and arranged on the chamber circumference at 8, that is, at the points of greatest flow velocity.

Claims (2)

PATENTANSPRÜCHE: i. Selbstzündende, luftverdichtende Einspritzbrennkraftmaschine mit einer in den Zylinderkopf oder Zylinderkörper eingegossenen Scheiben- oder kugelförmigen Brennkammer mit Verbindungskanal zum Hubraum, ausgebildet als Hohlkörper aus warmfestem, schlecht wärmeleitendem Metall, wobei der Hohlkörper auf seinen Außenflächen mit einer wärmedämmenden Schicht umgeben ist, dadurch gekennzeichnet, daß der Metallhohlkörper zur Erzielung einer geringen Wärmekapazität besonders dünnwandig ausgeführt ist und die Wärmedämmschicht durch chemische, galvanische oder Wärmebehandlung aus dem Werkstoff der Kammer gebildet ist. PATENT CLAIMS: i. Self-igniting, air-compressing injection internal combustion engine with a disk-shaped or spherical one cast into the cylinder head or cylinder body Combustion chamber with connection channel to the displacement, designed as a hollow body made of heat-resistant, poorly thermally conductive metal, the hollow body with on its outer surfaces is surrounded by a heat insulating layer, characterized in that the hollow metal body is made particularly thin-walled to achieve a low heat capacity and the thermal barrier coating by chemical, galvanic or heat treatment from the Material of the chamber is formed. 2. Einspritzbrennkraftmaschine nach Anspruch i, dadurch gekennzeichnet, daß der Metallhohlkörper nur an den Flächen der Brennkammer angeordnet ist, die von der rasch strömenden Kompressionsluft bevorzugt bestrichen werden. In Betracht gezogene Druckschriften: Deutsche Patentanmeldungen D 5050 Ia/46aE (bekanntgemacht am 10. 1. 1g52), K2447Ia/46c1 (bekanntgemacht am 19. 7. 1951), K 29o5 Ia/46ci (bekanntgemacht am 29. 3. 1951), P 1791 Ia/46c1 (bekanntgemacht am 21. 6. 1951) ; deutsche Patentschriften Nr. 659 ioo, 645 621, 632 834. 583 548, 410:200; österreichische Patentschrift Nr. 157 6i9.2. Injection internal combustion engine according to claim i, characterized in that the hollow metal body is arranged only on the surfaces of the combustion chamber which are preferably swept by the rapidly flowing compression air. Considered publications: German patent applications D 5050 Ia / 46aE (published on January 10, 1g52), K2447Ia / 46c1 (published on July 19, 1951), K 29o5 Ia / 46ci (published on March 29, 1951), P 1791 Ia / 46c1 (published June 21, 1951); German Patent Nos. 659 ioo, 645 621, 632 834, 583 548, 410: 200; Austrian patent specification No. 157 6i9.
DEL12120A 1952-04-18 1952-04-18 Self-igniting, air-compressing injection internal combustion engine Expired DE972406C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL12120A DE972406C (en) 1952-04-18 1952-04-18 Self-igniting, air-compressing injection internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL12120A DE972406C (en) 1952-04-18 1952-04-18 Self-igniting, air-compressing injection internal combustion engine

Publications (1)

Publication Number Publication Date
DE972406C true DE972406C (en) 1959-07-16

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650261A (en) * 1970-11-18 1972-03-21 Thomas A Hutsell Diesel engine
FR2190158A5 (en) * 1972-06-21 1974-01-25 Honda Motor Co Ltd
FR2191605A5 (en) * 1972-06-30 1974-02-01 Honda Motor Co Ltd
DE2649850A1 (en) * 1976-01-22 1977-08-04 List Hans Compressed ignition engine with direct injection - has injector nozzle with offset bore to aim fuel spray into preignition chamber
US4089306A (en) * 1976-06-09 1978-05-16 Caterpillar Tractor Co. Port insulation for internal combustion engines
AT523742A1 (en) * 2020-04-16 2021-11-15 Avl List Gmbh COMBUSTION ENGINE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE410200C (en) * 1922-11-25 1925-02-27 Hansa Lloyd Werke Akt Ges Process for the production of hollow bodies, in particular combustion chambers or channels for internal combustion engines
DE583548C (en) * 1933-09-05 E Rumpler Dr Ing Process for the refinement and compensation of parts of internal combustion engines that are subject to wear
DE632834C (en) * 1932-08-21 1936-07-15 Heinrich Lanz Akt Ges Incandescent engine for water-based fuels with a two-part, almost spherical combustion chamber
DE645621C (en) * 1931-01-13 1937-06-01 Harry Ralph Ricardo Air-compressing injection internal combustion engine with self-ignition
DE659100C (en) * 1933-05-15 1938-04-26 Harry Ralph Ricardo Self-igniting air-compressing injection internal combustion engine
AT157619B (en) * 1936-12-17 1939-12-27 Perkins F Ltd Injection internal combustion engine.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE583548C (en) * 1933-09-05 E Rumpler Dr Ing Process for the refinement and compensation of parts of internal combustion engines that are subject to wear
DE410200C (en) * 1922-11-25 1925-02-27 Hansa Lloyd Werke Akt Ges Process for the production of hollow bodies, in particular combustion chambers or channels for internal combustion engines
DE645621C (en) * 1931-01-13 1937-06-01 Harry Ralph Ricardo Air-compressing injection internal combustion engine with self-ignition
DE632834C (en) * 1932-08-21 1936-07-15 Heinrich Lanz Akt Ges Incandescent engine for water-based fuels with a two-part, almost spherical combustion chamber
DE659100C (en) * 1933-05-15 1938-04-26 Harry Ralph Ricardo Self-igniting air-compressing injection internal combustion engine
AT157619B (en) * 1936-12-17 1939-12-27 Perkins F Ltd Injection internal combustion engine.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650261A (en) * 1970-11-18 1972-03-21 Thomas A Hutsell Diesel engine
FR2190158A5 (en) * 1972-06-21 1974-01-25 Honda Motor Co Ltd
FR2191605A5 (en) * 1972-06-30 1974-02-01 Honda Motor Co Ltd
DE2649850A1 (en) * 1976-01-22 1977-08-04 List Hans Compressed ignition engine with direct injection - has injector nozzle with offset bore to aim fuel spray into preignition chamber
US4089306A (en) * 1976-06-09 1978-05-16 Caterpillar Tractor Co. Port insulation for internal combustion engines
AT523742A1 (en) * 2020-04-16 2021-11-15 Avl List Gmbh COMBUSTION ENGINE
AT523742B1 (en) * 2020-04-16 2022-03-15 Avl List Gmbh COMBUSTION ENGINE

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