DE700327C - Air-compressing internal combustion engine with self-ignition - Google Patents

Air-compressing internal combustion engine with self-ignition

Info

Publication number
DE700327C
DE700327C DE1937SC112138 DESC112138D DE700327C DE 700327 C DE700327 C DE 700327C DE 1937SC112138 DE1937SC112138 DE 1937SC112138 DE SC112138 D DESC112138 D DE SC112138D DE 700327 C DE700327 C DE 700327C
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engine
ignition
antechamber
air
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
DE1937SC112138
Other languages
German (de)
Inventor
Bartolomaeus Voss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1937SC112138 priority Critical patent/DE700327C/en
Application granted granted Critical
Publication of DE700327C publication Critical patent/DE700327C/en
Expired legal-status Critical Current

Links

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
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/04Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being subdivided into two or more chambers
    • 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

Luftverdichtende-Brennkraftmaschine mit Selbstzündung Die Erfindung betrifft die bekannten luftverdichtenden Brennkraftinaschinen mit Selbstzündung, bei welchen der Brennstoff während des Normalbetriebes in eine eine Mittelbohrung und Seitenbohrungen aufweisende Vorkammer, beim Anlassen dagegren unmittelbar in den Hauptbrennraum eingespritzt wird.Compression-ignition internal combustion engine The invention relates to the known air-compressing internal combustion engines with compression ignition, in which the fuel in a central bore during normal operation and antechamber with side bores, when starting directly in the main combustion chamber is injected.

Sie macht von der bekannten Erkenntnis Gebrauch, daß eine Maschine mit direkter Einspritzung im Anlaßbetrieb der Vorkammermaschine gegenüber wesentliche Vorteile aufweist, und will eine Maschine schaffen, die tatsächlich während des Anlaßzustandes ohne jede Vorkammer, also als vollkommene Einspritzmaschine, arbeitet. Sie weicht diesbezüglich demnach von den bekannten Maschinen ab, die zwar auch eine direkte Einspritzung während des Anlaßvorganges auf-Z> 2D weisen, bei denen aber die Vorkammer an sichnichtbeseitigtist, sondern lediglich durch Veränderung der Übergangsöffnungen zwischen der Vorkammer und dem Hauptbrennraum dem Einspritzstrahl ein unmittelbarer Durchtritt durch die in sich verbleibende Vorkammer gestattet wird. Die Tatsache, daß bei diesen bekannten Maschinen auch während der unmittelbaren Einspritzung die Vor-kammer an sich bestehen bleibt, wirkt sich insofern als nachteilig aus, als die verbleibende Vorkammer selbst bei geradewegs durchtretendem Einspritzstrahl bei tieferen Maschinentemperaturen das Ingangsetzen der Maschine doch noch erschwert, die Maschine jedenfalls nicht so günstig arbeitet wie eine mit direkter Einspritzung betriebene, ohne daß Schädigungen zu befürchten sind. Um dies zu erreichen, wird die Vorkammer bei einer luftverdichtenden Brennkraftmaschine der eingangs angegebenen Gattung erfindungsgemäß so ausgebildet, daß die Vorkammer maschinenauswärts durch eine halbkugelige bzw. eine mit ihrer Achse senkrecht zur Zylinderachse liegende halbzylindrische Aussparung im Zylinderkopf und maschineneinwärts durch eine schwenkbare, in ihrem Außendurchmesser mit dem Innendurchmesser der Zylinderkopfaussparung übereiustimmende, die Vorkammerbohrungen enthal tende, beim Anlaßbetrieb voll in den Zylinderkopf eingeschwenkte Wand gebildet ist.It makes use of the known knowledge that a machine with direct injection has significant advantages over the antechamber machine in the starting mode, and aims to create a machine which actually works during the starting state without any antechamber, i.e. as a complete injection machine. In this regard, it differs from the known machines, which also have direct injection during the starting process -Z> 2D, but in which the antechamber per se is not eliminated, but merely by changing the transition openings between the antechamber and the main combustion chamber a direct injection jet Passage through the remaining antechamber is allowed. The fact that in these known machines the pre- chamber remains in place even during the immediate injection has a disadvantageous effect as the remaining pre-chamber makes it even more difficult to start the machine even if the injection jet passes straight through at lower machine temperatures In any case, the machine does not work as favorably as one operated with direct injection without fear of damage. In order to achieve this, the prechamber is designed according to the invention in an air-compressing internal combustion engine of the type specified above so that the prechamber outwards from the machine through a hemispherical or a semi-cylindrical recess in the cylinder head with its axis perpendicular to the cylinder axis and inward from the machine through a pivotable one in its outer diameter with the inner diameter of the cylinder head recess in agreement, the prechamber bores containing tend, is formed fully pivoted wall into the cylinder head during starting operation.

Eine Brennkraftmaschine mit den Merkmalen gemäß der Erfindung ist in der Zeichnung in einer Ausführungsform beispielsweise veranschaulicht, und zwar zeigt: Fig. i die Brennkraftmaschine in ihrer Einstellung-als Einspritzmaschine für den Anlaßbetrieb, Fig. 2 die Brennkraftmaschine in ihrer normalen Betriebsstellung als Vorkammermaschine.An internal combustion engine with the features according to the invention is illustrated in the drawing in one embodiment, for example, namely shows: Fig. i the internal combustion engine in its setting - as an injection machine for starting operation, Fig. 2 the internal combustion engine in its normal operating position as an antechamber machine.

Im Kopf i des Zylinders ist oberhalb des Kolbens 2 eine zylinärische oder kugelförmig auscebildete Aussparung 3 vorgesehen, in weleher sich die Wand 4 um ihre Achse 5 durch den Hebel 6 verschwenken läßt. In der Wand 4 sind Bohrungen 7, 8 vorgesehen, von welchen die Bohrung8 der Einspritzöffnungg U gt.In the head i of the cylinder, a cylindrical or spherical recess 3 is provided above the piston 2, in which the wall 4 can be pivoted about its axis 5 by the lever 6. In the wall 4 bores 7, 8 are provided, of which the bore 8 of the injection opening g U gt.

"egenüberlie', Soll die Maschine während der Anlaßperiode mit direkter Einspritzung arbeiten, so wird der Hebe16, wie in Fig.4 dargestellt, so Z, aeschwenkt, daß die Wand4 im Innern der Bohrung3 verschwindet und ihre öffnung8 unmittelbar vor der Einspritzdüse 9 lie '-t. Der eingespritzte Strahl tritt dann durch die üffnun-8 unmittelbar in den Verdichtungsraum C über. Eine Vorkammer ist nicht vorhanden. Soll dagegen auf den Betriebszustand gemäß Fig.z umgeschaltet werden, so wird der Hebe16 um i8o' geschwenkt, und die Wand4 schließt alsdann die Bohrung3 ab. Besonders zweckmäßig ist es, die Wand4, wie aus den Figuren ersichtlich ist, so auszubilden, daß ihre Innenbohrung zu ihrem Außenumfang exzentrisch ist."egenüberlie ', If the machine is working with direct injection during the starting period, the Hebe16, as shown in Figure 4, so Z, aeschwenkt that the Wand4 inside the Bohrung3 disappears and their öffnung8 lie directly in front of the injection nozzle 9' -t. The injected jet then passes through the ffnun-8 directly into the compression space C. There is no antechamber. If, on the other hand, the operating state according to FIG then closes the bore 3. It is particularly expedient to design the wall 4, as can be seen from the figures, in such a way that its inner bore is eccentric to its outer circumference.

Claims (1)

PATENTANSPRUCH: Luftverdichtende Brennkraftmaschine mit Selbstzündung, bei der der Brennstoff während des Normalbetriebes in eine eine Mittelbohrung und Seitenbohrungen aufweisende Vorkammer, beim Anlassen dagegen unmittelbar in den Hauptbrennraum eingespritzt wird, dadurch gekennzeichnet, daß die Vorkammer maschinenauswärts durch eine halbkugelige bzw.eine mit ihrer Achse senkrecht zur Zylinderachse liegende halbzylindrische Aussparung (3) im Zylinderkopf (i) und maschineneinwärts durch eine schwenkbare, in ihrem Außendurchmesser mit dem Innendurthmesser der Zylinderkopfaussparung übereinstimmende, die Vorkammerbohrungen (7, 8) enthaltende, beim Anlaßbetrieb voll in den Zylinderkopf (i) eingeschwenkte Wand (4) gebildet ist. PATENT CLAIM: Air-compressing internal combustion engine with self-ignition, in which the fuel is injected into an antechamber with a central bore and side bores during normal operation, but directly into the main combustion chamber when starting, characterized in that the antechamber outward from the machine is through a hemispherical one or one with its axis perpendicular to the cylinder axis lying semi-cylindrical recess (3) in the cylinder head (i) and maschineneinwärts by a pivotable, matched in its outer diameter with the Innendurthmesser the cylinder head recess which Vorkammerbohrungen (7, 8) containing fully swung into the cylinder head (i) in the cranking operation wall ( 4) is formed.
DE1937SC112138 1937-02-19 1937-02-19 Air-compressing internal combustion engine with self-ignition Expired DE700327C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1937SC112138 DE700327C (en) 1937-02-19 1937-02-19 Air-compressing internal combustion engine with self-ignition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937SC112138 DE700327C (en) 1937-02-19 1937-02-19 Air-compressing internal combustion engine with self-ignition

Publications (1)

Publication Number Publication Date
DE700327C true DE700327C (en) 1940-12-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989041A (en) * 1958-06-26 1961-06-20 Georges Raymond Emile Internal combustion engines of the reciprocating piston type
DE112011104599B4 (en) * 2010-12-27 2017-02-09 Ge Jenbacher Gmbh & Co Og Internal combustion engine
DE102018220171A1 (en) * 2018-11-23 2020-05-28 Mtu Friedrichshafen Gmbh Pre-chamber arrangement for an internal combustion engine, internal combustion engine with such a pre-chamber arrangement, and method for operating such an internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989041A (en) * 1958-06-26 1961-06-20 Georges Raymond Emile Internal combustion engines of the reciprocating piston type
DE112011104599B4 (en) * 2010-12-27 2017-02-09 Ge Jenbacher Gmbh & Co Og Internal combustion engine
DE102018220171A1 (en) * 2018-11-23 2020-05-28 Mtu Friedrichshafen Gmbh Pre-chamber arrangement for an internal combustion engine, internal combustion engine with such a pre-chamber arrangement, and method for operating such an internal combustion engine
DE102018220171B4 (en) 2018-11-23 2022-09-08 Rolls-Royce Solutions GmbH Internal combustion engine with an antechamber arrangement, and method for operating such an internal combustion engine

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