DE500023C - Diesel engine with airless injection, a main combustion chamber and an additional combustion chamber in the working piston - Google Patents

Diesel engine with airless injection, a main combustion chamber and an additional combustion chamber in the working piston

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Publication number
DE500023C
DE500023C DEC40257D DEC0040257D DE500023C DE 500023 C DE500023 C DE 500023C DE C40257 D DEC40257 D DE C40257D DE C0040257 D DEC0040257 D DE C0040257D DE 500023 C DE500023 C DE 500023C
Authority
DE
Germany
Prior art keywords
combustion chamber
diesel engine
piston
main
auxiliary channels
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
DEC40257D
Other languages
German (de)
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.)
Ceskomoravska Kolben AS
Original Assignee
Ceskomoravska Kolben AS
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 Ceskomoravska Kolben AS filed Critical Ceskomoravska Kolben AS
Application granted granted Critical
Publication of DE500023C publication Critical patent/DE500023C/en
Expired legal-status Critical Current

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
    • F02B23/0618—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
    • F02B23/0627—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 having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl
    • 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
    • F02B23/0624—Swirl 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
    • 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
    • F02B23/063—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 the combustion space in the piston interacting fluid dynamically with the cylinder head, the injector body or the cylinder wall
    • 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
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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

Description

Dieselmaschine mit luftloser Einspritzung, einem Hauptbrennraum und einem zusätzlichen Brennraum im Arbeitskolben Die Erfindung betrifft eine Dieselmaschine mit luftloser Einspritzung, einem einheitlichen, über :die gesamte Kolben.stirnfläche sich ,erstreckenden Hauptbrennraum und einem zusätzlichen Brennraum ,im Arbeitskolben, in den einerseits ein Hauptkanal für die Brennstoffeinspritzung und, andererseits Hilfskanäle münden. Bei den bisher bekannten Dieselmaschinen der vorstehend :gekennzeichneten Art wird vor, in und nach der oberen Totpunktlage der über der Kolbenstirnfläche befindliche Hauptbrennraum in zwei Räume von unterschiedlichem Volumen geteilt. Hierdurch entstehen am Ende des Verdichtungshuhes und bei Beginn des Arbeitshubes. also während der Brennstoffeinspritzung, Strömungen, die zum Teil der Einspritzung entgegenwirken und hierdurch. zu Betriebsstörungen Veranlassung geben.Diesel engine with airless injection, a main combustion chamber and an additional combustion chamber in the working piston The invention relates to a diesel engine with airless injection, a uniform one over: the entire piston face extending main combustion chamber and an additional combustion chamber in the working piston, in the one hand a main channel for fuel injection and, on the other hand Open auxiliary channels. In the previously known diesel engines of the above: marked Art is before, in and after the top dead center position of the piston face located main combustion chamber divided into two rooms of different volumes. This creates at the end of the compression hump and at the beginning of the working stroke. So during fuel injection, flows that are part of the injection counteract and thereby. give cause for operational disruptions.

DieErfindnng beseitigt dieseNachteile, und .zwar @dadurch, @diaß der Einspritzhauptkanal und die Hilfskanäle derart angeordnet sind, daß sie in jeder Kolbenstellung den zusätzlichem Brennraum im Arbeitskolben mit dem H.auptbrennraum verbinden. Beim Gegenstand ider vorliegenden Erfindung herrschen in jeder Kolbenstellung an den Mündungen des Haupteinspritzkanales und der Hilfskanäle die gleichen Verhältnisse, insbesondere hinsichtlich des Druckes, wodurch .schädliche Gegenströmungen sowohl @im Einspritzhauptkanal wie auch in :den Hilfskanälen vermieden werden.The invention eliminates these disadvantages, and while @thereby @diaß the Injection main channel and the auxiliary channels are arranged such that they are in each Piston position the additional combustion chamber in the working piston with the main combustion chamber associate. In the subject matter of the present invention, each piston position prevails the same conditions at the mouths of the main injection port and the auxiliary ports, especially with regard to the pressure, which causes harmful countercurrents to both @ in the main injection channel as well as in: the auxiliary channels are avoided.

In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung veranschaulicht. Die Abb. i und z zeigen ein Ausführungsbeispiel, und. zwar zeigt Abb. i den oberen Teil der Dieselmaschine im Längsschnitt. Abb. 2 stellt eine Draufsicht auf die obere Seite des Kolbens dar. In :den Abb. 3, 4 :und 5 isst ein zweites A:usführun:gsbeispielder Erfindung dargestellt, und zwar zeigt Abb. 3 den :oberen Teil der Dieselmaschine im Längsschnitt und Abb.4 eine Draufsicht auf den Kolben gemäß Abb. 3. A Abb. 5 zeigt einen Schnitt durch den Kolben nach Linie V-V der A:bb. 3.Two exemplary embodiments of the invention are illustrated in the drawing. Figs. I and z show an embodiment, and. although Fig. i shows the upper one Part of the diesel engine in a longitudinal section. Fig. 2 presents a plan view of the upper one Side of the piston. In: Figs. 3, 4: and 5 a second embodiment of the Invention shown, namely Fig. 3 shows the: upper part of the diesel engine in longitudinal section and Fig. 4 a top view of the piston according to Fig. 3. A Fig. 5 shows a section through the piston along line V-V of A: bb. 3.

Bei dem Ausführungsbeispiel gemäß den Abb. i und z weist die Dieselmaschine einen einheitlich über die gesamte Kolbenstirnfläche sich erstreckenden Hauptbrennraum 3 auf. Im Arbeitskolben 2 ist ein zusätzlicher Brennraum i vorgesehen; in denselben münden einerseits ein Hauptkanal 6 für ;die Brennstoffeinspritzung und andererseits Hilfskanäle B. Die Einspritzung erfolgt durch eine Düse 5; -die ini Zylinderdeckel .4. in der Achse des Hauptkanal.; 6 sich befindet.In the embodiment according to FIGS. I and z, the diesel engine a main combustion chamber extending uniformly over the entire piston face 3 on. An additional combustion chamber i is provided in the working piston 2; in the same open on the one hand a main channel 6 for the fuel injection and on the other hand Auxiliary channels B. Injection takes place through a nozzle 5; -the ini cylinder cover .4. in the axis of the main channel .; 6 is located.

Der Einspritzkanal 6 und die Hilfskanäle 8 sind derart angeordnet, daß sie in jeder Kolbenstellung den zusätzlichen Brennrauan i mit dem Hauptbrennraum 3 verbinden. Hierb,ei sind die Hilfskanäle derart im Kolben angeordnet, daß ihre geometrischen Achsen parallel zur LängsachseA-A des Zylinders der Dieselmaschine verlaufen. Wie insbesondere Abb. i zeigt, sind die Hilfskanäle 8 gegen den Hauptbrennrau,m 3 hin kegelförmnig erweitert. Diese kegelförmige Erweiterung ist in der Zeichnung mit 9 bezeichnet.The injection channel 6 and the auxiliary channels 8 are arranged in such a way that that they have the additional Brennrauan i with the main combustion chamber in every piston position 3 connect. Here, the auxiliary channels are arranged in the piston in such a way that their geometric axes parallel to the longitudinal axis A-A of the cylinder of the diesel engine get lost. As shown in particular in Fig. I, the auxiliary channels 8 are against the main burner space, m 3 widened to a conical shape. This conical extension is in the drawing denoted by 9.

Durch die Anordnung des Einspritzhauptkanals 6 und Ader Hilfskanäle 8, 9 in solcher Weise, daß sie in jeder Kolbenstellung den zusätzlichen Brennraum i mit dem Hauptbrennraurn 3 verbinden, wnrd der Vorteil erzielt, daß in jeder I,,ollbenstell:ung, also auch während der Einspritzung, gleichgültig ob vor, in oder nach der oberen Totpunktlage erfolgt, an den Einmündungen der Kanäle 6 und 8, 9 die gleichen Verhältnisse, insbesondere hinsichtlich des Druckes, herrschen. Damit wird eine innige Vermischung ,des eingespritzten Brennstoffes mit der Verbrennungsluft und restlose Verbrennung gewährleistet, und zwar sowohl bei verminderter Leistung der Maschine als auch bei Vollleistung. Der durch die Düse 5 eingespritzte Brennstoff gelangt im Sinne der Pfeilrichtung io durch den Hauptkanal 6 in den zusätzlichen Brennraum i, mischt sich im Brennraum i mit der Verbrennungsluft, und die Brenngase strömen unter Mitreißung des noch nicht verbrannten Brennstoffes im Sinne der Pfeilrichtungen i i von i nach 3 hin. Im Hauptbrennraum 3 findiet die voll.ständigeVerbrennung des Brennstoffes statt, ohne daß bis zum Schlusse der Einspritzung letztere eine Störung erfährt.Due to the arrangement of the main injection channel 6 and the auxiliary channels 8, 9 in such a way that they use the additional combustion chamber in every piston position i connect with the main combustion chamber 3, the advantage is achieved that in every I ,, ollbenstell: ung, also during the injection, regardless of whether before, in or after the upper one Dead center position takes place, at the junctions of channels 6 and 8, 9 the same conditions, especially with regard to the pressure. This creates an intimate mixture , the injected fuel with the combustion air and complete combustion guaranteed, both with reduced machine performance and with Full performance. The fuel injected through the nozzle 5 arrives in the sense of Arrow direction io through the main channel 6 into the additional combustion chamber i, mixes in the combustion chamber i with the combustion air, and the combustion gases flow with them of the not yet burned fuel in the direction of the arrow directions i i from i to 3 out. Complete combustion of the fuel takes place in the main combustion chamber 3 instead, without the latter experiencing a disturbance up to the end of the injection.

Bei dem Ausführungsbeispiel -gemäß den Abb. 3 bis 5 sind .im Kolben :2 mehrere Hilfskanäle 12, 13 derart angeordnet, daß ihre geometrischen Achsen Tangenten an Schraubenlinien bilden, deren Achsen pariallel zur Längsachse des Zylinders verlaufen. Dadurch wird während der Verbrennung eine wirbelnde Bewegung der auszuströmendenGase erreicht und auch, während des Verdichtungshubes die zusammengedrückte Luft durch diese Kanäle in Wirbelströmen in die Verbrennungskammer eingepreßt. Dies hat eine wirksame Abgabe der Wärme der Innenwand des z:usätzlichenBrennraumes.zn,die zusammengerlrückte Luft zur Folge. Die sonstige Bauart und Wirkungsweise der Dieselmaschine gemäß den Abb. 3 bis 5 ist die gleiche wie jene gemäß den Abb. i und 2, und es sind die anologen Bauteile m.it den gleichen Bezugszeichen bezeichnet.In the embodiment -according to Figs. 3 to 5 are .im piston : 2 several auxiliary channels 12, 13 arranged in such a way that their geometrical axes are tangent on helical lines whose axes run parallel to the longitudinal axis of the cylinder. This creates a swirling movement of the gases flowing out during combustion reached and also, during the compression stroke, the compressed air through these channels are pressed into the combustion chamber in eddy currents. This has a Effective dissipation of the heat from the inner wall of the additional combustion chamber Result in air. The other design and mode of operation of the diesel engine according to Figs. 3 to 5 are the same as those of Figs. 1 and 2, and they are the anologous Components are denoted by the same reference numerals.

Die Anordnung gemäß der Erfindung erm5glicht huch eine leichte Regelung -der günstigsten Leistung der Dieselmaschine und bis zu einem gewissen Grade auch eine Veränderung derUmdrehungszahl mit minimalem Brennstoffverbrauch. Die Regelung der Dieselmaschine kann z. B. durch Veränderung der Durchmesser der Hilfskanäle, durch entsprechende Wahl oder durch Veränderung ihrer Anzahl, ferner durch Veränderung der Steigung der Schraubenlinien, deren Tangenten die Richtung der Hilfskanäle bestimmen, dann durch Wechsel des Sinnes de,ser Schraubenlinien nach rechts oder .links und endlich durch die verschiedenen Formgebungen -der Erweiterungen 9, 13 erzielt werden.The arrangement according to the invention also enables easy control of the most favorable performance of the diesel engine and, to a certain extent, also a change in the number of revolutions with minimal fuel consumption. The control of the diesel engine can, for. B. by changing the diameter of the auxiliary channels, by appropriate choice or by changing their number, also by changing the slope of the helical lines, the tangents of which determine the direction of the auxiliary channels, then by changing the sense of the helical lines to the right or .links and finally can be achieved by the different shapes of the extensions 9, 13 .

Claims (3)

PATENTANSPRÜCHE; i. Dieselmaschine mit luftloser Einspritzung, :einem einheitlichen, über die gesamte Kolbenstirnfläche sich erstreckenden Hauptbrennraum und einem zusätzlichen Brennraum im Arbeitskolben, in den einerseits ein Hauptkanal für die Brennstoffeinspritzung und andererseits Hilfskanäle münden, dadurch gekennzeichnet, daß der Einspritzhauptkanal (6) und die Hilfskanäle (8, 9, 12, 13) derart angeordnet sind, daß sie in jeder Kolbenstellung den zusätzlichen Brennraum mit dem Hauptbrennraum (3) verbinden. PATENT CLAIMS; i. Airless Injection Diesel Engine: one uniform main combustion chamber extending over the entire piston face and an additional combustion chamber in the working piston, into which, on the one hand, a main channel open out for the fuel injection and on the other hand auxiliary channels, characterized in that that the main injection channel (6) and the auxiliary channels (8, 9, 12, 13) are arranged in such a way are that they create the additional combustion chamber with the main combustion chamber in every piston position (3) connect. 2. Dieselmaschine nach Anspruch i, dadurch gekennzeichnet, daß die Hilfskanäle (8, 9) derart im Kolben, (2) angeordnet sind, daß ihre geometrischen Achsen (i2) parallel zur Längsachse des Zylinders verlaufen. 2. Diesel engine according to claim i, characterized in that the Auxiliary channels (8, 9) are arranged in the piston, (2) that their geometric Axes (i2) run parallel to the longitudinal axis of the cylinder. 3. Dieselmaschine nach Anspruch i, dadurch gekennzeichnet, daß die Hilfskanäle (i2, 13) -derart im Kolben (2) angeordnet sind, daß ihre geometrischen Achsen Tangenten an Schraubenlinien bilden, deren Achsen parallel zur Längsachse des Zylinders verlaufen.3. Diesel engine after Claim i, characterized in that the auxiliary channels (i2, 13) in the piston (2) are arranged so that their geometrical axes are tangent to helical lines form whose axes are parallel to the longitudinal axis of the cylinder.
DEC40257D 1927-04-12 1927-08-09 Diesel engine with airless injection, a main combustion chamber and an additional combustion chamber in the working piston Expired DE500023C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS500023X 1927-04-12

Publications (1)

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DE500023C true DE500023C (en) 1930-06-16

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DEC40257D Expired DE500023C (en) 1927-04-12 1927-08-09 Diesel engine with airless injection, a main combustion chamber and an additional combustion chamber in the working piston

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742542C (en) * 1938-07-23 1943-12-06 Luis Leizaola Diesel engine
US2738782A (en) * 1952-02-25 1956-03-20 Jr Albert G Bodine Detonation suppression means for internal combustion engines
DE3012022A1 (en) * 1980-03-28 1981-10-08 Karl 3350 Kreiensen Burgsmüller Reciprocating piston IC engine - has second combustion chamber in piston connected by restriction to cylinder combustion space
US4566413A (en) * 1983-10-21 1986-01-28 Daimler-Benz Aktiengesellschaft Mixture-compression internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742542C (en) * 1938-07-23 1943-12-06 Luis Leizaola Diesel engine
US2738782A (en) * 1952-02-25 1956-03-20 Jr Albert G Bodine Detonation suppression means for internal combustion engines
DE3012022A1 (en) * 1980-03-28 1981-10-08 Karl 3350 Kreiensen Burgsmüller Reciprocating piston IC engine - has second combustion chamber in piston connected by restriction to cylinder combustion space
US4566413A (en) * 1983-10-21 1986-01-28 Daimler-Benz Aktiengesellschaft Mixture-compression internal combustion engine

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