DE497795C - Two-stroke internal combustion engine with slot purging, airless injection and self-ignition - Google Patents

Two-stroke internal combustion engine with slot purging, airless injection and self-ignition

Info

Publication number
DE497795C
DE497795C DEW74984D DEW0074984D DE497795C DE 497795 C DE497795 C DE 497795C DE W74984 D DEW74984 D DE W74984D DE W0074984 D DEW0074984 D DE W0074984D DE 497795 C DE497795 C DE 497795C
Authority
DE
Germany
Prior art keywords
injection
ignition
self
internal combustion
combustion engine
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
DEW74984D
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.)
BWS Technologie GmbH
Original Assignee
Maschinenfabrik Buckau R Wolf AG
Publication date
Priority to DEW74984D priority Critical patent/DE497795C/en
Application granted granted Critical
Publication of DE497795C publication Critical patent/DE497795C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/182Discharge orifices being situated in different transversal planes with respect to valve member direction of movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Zweitakteinspritzbrennkraftmaschine mit Schlitzspülung, luftloser Einspritzung und Selbstzündung Die Erfindung betrifft eine Verbesserung des Brennraumes und .der Brennstoffeinspritzung an der Maschine nach dem Patent 475 61o. Durch weitgehende Überlegungen und Versuche wurde festgestellt, daß bei einer ganz bestimmten Form des Brennraumes und des Einspritzkegels der günstigste Brennstoffverbrauch erzielt wurde. Demgemäß bestehen die Kennzeichen :der Erfindung darin, daß die Kegelform des Einspritz- oder Verbrennungsraumes 6o° oder annähernd 6o° und die -der Düsen- oder Einspritzbohrungen 5o° oder annähernd 5o° beträgt und für letztere nur drei in Gestalt eines gleichseitigen Dreiecks angeordnete Bohrungen vorgesehen sind.Two-stroke injection internal combustion engine with slot scavenging, airless Injection and compression ignition The invention relates to an improvement in the combustion chamber and. the fuel injection on the engine according to patent 475 61o. Through extensive Considerations and experiments have been found that with a very specific shape the combustion chamber and the injection cone achieve the best fuel consumption became. Accordingly, the characteristics of the invention are that the cone shape of the injection or combustion chamber 6o ° or approximately 6o ° and the -the nozzle- or injection bores is 50 ° or approximately 50 ° and for the latter only three arranged in the shape of an equilateral triangle holes are provided.

Auf der Zeichnung ist eine Ausführung der Erfindung beispielsweise dargestellt. Abb. i veranschaulicht den Brennraum und den Kolben in seiner inneren Totlage mit (der in den Brennraum hineinragenden Spitze, Abb.2 und 3 in vergrößertem Maßstäbe die Einspritzstrahlen nebst Düse und Brennraum, Abb. 4,die Anordnung der Düsenlöcher. Mit i ist der Brennraum bezeichnet, welcher ohne jede Einschnürung in seiner kegeligen Form bis unmittelbar an den Kolben herangeht und einen Spitzenwinkel. von 6o° oder annähernd 6o° besitzt. In dann Düsenmundstück 2 sind drei Bohrungen 3 vorgesehen, welche in Form eines gleichseitigen Dreiecks (Abib. 4) angeordnet sind und einen etwas spitzeren Kegel von 5o° oder annähernd 5o° bilden.An embodiment of the invention is shown in the drawing, for example shown. Fig. I illustrates the combustion chamber and the piston in its interior Dead position with (the tip protruding into the combustion chamber, Figs. 2 and 3 in enlarged Scales the injection jets along with the nozzle and combustion chamber, Fig. 4, the arrangement of the Nozzle holes. The combustion chamber is designated by i, which is without any constriction in its conical shape goes right up to the piston and has an apex angle. of 6o ° or approximately 6o °. There are then three bores in the nozzle mouthpiece 2 3 provided, which are arranged in the form of an equilateral triangle (Fig. 4) and form a slightly more pointed cone of 5o ° or almost 5o °.

Eine besonders vorteilhafte Ausführung des Düsenmundstücks zeigt Abb.3. Danach ist zwischen der Düsennadel 4 und den Düsenlöchern 3 ein Brennstofführungskanal 5 eingeschaltet. Zunächst ist hierdurch der Vorteil erreicht, daß die Warndung d des Düsenmundstücks etwa fünfmal so stark ausgeführt werden kann wie bei Verwendung der Ausführungsform nach Abb.2, bei der die Wandung mit c bezeichnet ist. Die Stärke dieser Wandung war meistens i mm und hatte den Nachteil, daß sie unter dem starken Aufschlagdruck der Düsennadel häufig zu Bruch ging und unliebsame Betriebsstörungen verursachte. Die .gan e äußere Form des Düsenmundstücks, _ auch die Länge der Düsenbohrung von i mm wird bei der Ausführung nach Abb. 3 beibehalten; durch die Anordnung des Brennstofführungskanals hat man jedoch eine absolut bruchsichere Wandstärke d des Düsenmundstücks erzielt.A particularly advantageous embodiment of the nozzle mouthpiece is shown in Fig.3. Thereafter, a fuel guide channel is between the nozzle needle 4 and the nozzle holes 3 5 switched on. First of all, this has the advantage that the warning d of the nozzle mouthpiece can be made about five times as strong as when used the embodiment according to Fig.2, in which the wall is denoted by c. The strenght this wall was mostly 1 mm and had the disadvantage that it was under the strong The impact pressure of the nozzle needle often broke and there were unpleasant malfunctions caused. The overall outer shape of the nozzle mouthpiece, _ also the length of the nozzle bore of i mm is retained in the version according to Fig. 3; by the arrangement of the However, the fuel duct has an absolutely unbreakable wall thickness d des Nozzle mouthpiece achieved.

Ein weiterer Vorteil dieser Ausführung besteht darin, daß die Brennstoffstrahlen, wie durch Versuche bewiesen ist, eine größere Durchschlagkraft :besitzen, d. h. daß der Brennstoff bis in die äußersten Ecken des Brennraumes dringt. Es findet eine außerordentlich günstige Vermischung der Brennstoffstrahlen mit der Kompressionsladung statt, und es wird, wie ebenfalls Versuche bewiesen haben, ein wesentlich günstigerer Brennstoffverbrauch erzielt als bei (der Maschine nach dem Hauptpatent.Another advantage of this design is that the fuel jets, as has been proven by experiments, a greater penetrating power: possess, d. H. that the fuel penetrates to the furthest corners of the combustion chamber. It finds an extremely favorable mixing of the fuel jets with the compression charge instead, and it is, as tests have also shown, a much cheaper one Fuel consumption achieved than with (the machine according to the main patent.

Obwohl die Vorgänge der Mischung und Zünldung von Brennstoff und Kompressionsladung ganz verwickelter Natur und bis heute noch nicht ein-wandfrei erforscht sind, scheint die Begründung für den günstigeren Brennstoffverbrauch, wie bereits erwähnt, in der größeren Durchschlagkraft des Brennstoffstrahles .zu liegen. Und diese größere Durchschlagkraft rührt jedenfalls davon her, daß die Brennstoffstrahlen im Gegensatz zu der Ausführung nach Ahb. 2 vor den Düsenlöchern nicht zerrissen werden, sondern daß aus dem vor den Düsenbohrungen im Kanal 5 zusammenhängend lagernden Brennstoffvorrat geschlossene Strahlen gebildet werden.Although the processes of mixing and ignition of fuel and compression charge of a very complex nature and have not yet been properly explored, it seems the reason for the cheaper fuel consumption, as already mentioned, in the greater penetration power of the fuel jet .zu lie. And this bigger one In any case, penetrating power comes from the fact that the fuel jets in contrast to the execution according to Ahb. 2 in front of the nozzle holes are not torn, but that from the fuel supply stored in front of the nozzle bores in the channel 5 closed rays are formed.

Claims (1)

PATENTANSPRUCH: Zweitakteinspritzbrennkraftmaschinemit Schlitzspülung, luftloser Einspritzung und Selbstzündung durch hohe Verdichtung nach Patent 475 61o, dadurch gekennzeichnet, daß die Kegelform des Einspritz-oder Verbrennungsraumes 6o `oder annähernd 6o° und die der Düsen oder Einspritzbohrungen (3) 50° oder annähernd 5o° beträgt und für letztere nur drei in Form eines gleichseitigen Dreiecks angeordnete Bohrungen (3) vorgesehen sind.PATENT CLAIM: Two-stroke injection internal combustion engine with slot scavenging, airless injection and self-ignition through high compression according to patent 475 61o, characterized in that the conical shape of the injection or combustion chamber 6o `or approximately 6o ° and those of the nozzles or injection bores (3) 50 ° or approximately 5o ° and for the latter only three arranged in the form of an equilateral triangle Bores (3) are provided.
DEW74984D Two-stroke internal combustion engine with slot purging, airless injection and self-ignition Expired DE497795C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW74984D DE497795C (en) Two-stroke internal combustion engine with slot purging, airless injection and self-ignition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW74984D DE497795C (en) Two-stroke internal combustion engine with slot purging, airless injection and self-ignition

Publications (1)

Publication Number Publication Date
DE497795C true DE497795C (en) 1930-05-13

Family

ID=7609781

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW74984D Expired DE497795C (en) Two-stroke internal combustion engine with slot purging, airless injection and self-ignition

Country Status (1)

Country Link
DE (1) DE497795C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073805B (en) * 1960-01-21 Carl Kaelble G.m.b.H., Backnang (Würti) Air-cooled internal combustion engine with direct injection through an injection nozzle arranged in the cylinder head
DE10119511B4 (en) * 2001-04-20 2010-06-10 Volkswagen Ag Internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073805B (en) * 1960-01-21 Carl Kaelble G.m.b.H., Backnang (Würti) Air-cooled internal combustion engine with direct injection through an injection nozzle arranged in the cylinder head
DE10119511B4 (en) * 2001-04-20 2010-06-10 Volkswagen Ag Internal combustion engine

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