CH96739A - Method and device for introducing the fuel into the combustion chamber of internal combustion engines with injection of the fuel alone. - Google Patents

Method and device for introducing the fuel into the combustion chamber of internal combustion engines with injection of the fuel alone.

Info

Publication number
CH96739A
CH96739A CH96739DA CH96739A CH 96739 A CH96739 A CH 96739A CH 96739D A CH96739D A CH 96739DA CH 96739 A CH96739 A CH 96739A
Authority
CH
Switzerland
Prior art keywords
fuel
injection
combustion chamber
introducing
alone
Prior art date
Application number
Other languages
German (de)
Inventor
Maschinenfabrik Schw Lokomotiv
Original Assignee
Schweizerische Lokomotiv
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 Schweizerische Lokomotiv filed Critical Schweizerische Lokomotiv
Publication of CH96739A publication Critical patent/CH96739A/en

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
    • 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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

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

  

  Verfahren und Einrichtung zum Einführen des Brennstoffes in den Verbrennungs  raum von Verbrennungsmotoren mit Einspritzung des Brennstoffes allein.    Für Ölmotoren, bei denen der Brennstoff  mittelst Düsen fein verteilt in den Verbren  nungsraum eingespritzt wird, ist es für eine  gute Verbrennung sehr wesentlich, dass sich  dabei die Verbrennungsluft in wirbelnder Be  wegung befindet. Beim Dieselmotor wird das  in bekannter Weise dadurch erreicht, dass  man den Brennstoff mit Hilfe hochkompri  mierter Luft in den Verbrennungsraum ein  bläst.

   Bei Motoren mit Einspritzung des       Brennstoffes    allein, d. h. ohne Verwendung  von     Einblaseluft,    werden Wirbel in der Ver  brennungsluft vielfach dadurch hervorgebracht,  dass ein Teil der Luft vom Kolben abge  schnürt und durch einen engen Querschnitt  zwischen diesem und der innern Gehäusewand  in den eigentlichen Verbrennungsraum ge  trieben wird.  



  Gemäss vorliegender Erfindung wird bei  Einspritzung von     Brennstoff    allein in mehreren       Brennstoffstrahlen    in den Verbrennungsraum  eine     Wirbelung    der Verbrennungsluft dadurch  erreicht, dass die Einspritzung wenigstens eines  der     Brennstoffstrahlen    vor den andern bewirkt    wird. Die Brennstoffmenge dieses zuerst ein  gespritzten Strahles     verbrennt    sofort, erzeugt  aber örtlich eine Temperatur- und Drucker  höhung, die sich rasch unter Wirbelbildung  in den übrigen Verbrennungsraum verbreiten.  Die später eingespritzten Brennstoffstrahlen  treffen somit auf diese wirbelnde Verbren  nungsluft.

   Die beiliegende Zeichnung zeigt  schematisch ein Ausführungsbeispiel einer  Einrichtung zur Ausübung des Verfahrens.  



  In den Verbrennungsraum     R    münden drei       Brennstoffdüsen   <I>Dl,</I>     D2    und<B>DB</B> ein. Die Vor  einspritzung erfolgt durch die Düse Dl und  wird dadurch erreicht, dass in die Drucklei  tung der gemeinschaftlichen Brennstoffpumpe  P nach der Abzweigung zur Düse D', da  gegen vor den Abzweigungen zu den Düsen       D'    und     D3    ein Hemmnis in Form eines feder  belasteten Ventils     V    eingeschaltet ist.

   Die  Einspritzung durch die nach diesem Organ  angeschlossenen Düsen     D2    und     D3    wird da  durch verzögert und somit später erfolgen als  diejenige durch die Düse D', die mit der Lei  tung verbunden ist, welche vor dem Ventil     V         abzweigt. Durch Veränderung der Belastung  dieses letzteren kann die Verzögerung in der  Einspritzung reguliert werden. Wenn man  nach der zweiten Düse ein weiteres Hemmnis  einschaltet, so kann man auch die Einspritzung  der Düse     D1    gegenüber derjenigen durch die  Düse     D2    verzögern, falls dies wünschenswert  erscheint.



  Method and device for introducing the fuel into the combustion chamber of internal combustion engines with injection of the fuel alone. For oil engines in which the fuel is finely distributed into the combustion chamber by means of nozzles, it is very important for good combustion that the combustion air is in a swirling motion. In the case of diesel engines, this is achieved in a known manner by blowing the fuel into the combustion chamber with the aid of highly compressed air.

   In engines with fuel injection alone, i. H. Without the use of blown air, eddies in the combustion air are often caused by the fact that part of the air is constricted from the piston and driven into the actual combustion chamber through a narrow cross section between it and the inner housing wall.



  According to the present invention, when fuel is injected into the combustion chamber solely in a plurality of fuel jets, a swirling of the combustion air is achieved in that at least one of the fuel jets is injected before the others. The amount of fuel from this first sprayed jet burns immediately, but locally generates a temperature and pressure increase, which spreads rapidly into the rest of the combustion chamber with the formation of eddies. The fuel jets injected later hit this swirling combustion air.

   The accompanying drawing shows schematically an embodiment of a device for performing the method.



  Three fuel nozzles <I> D1, </I> D2 and <B> DB </B> open into the combustion chamber R. The pre-injection takes place through the nozzle Dl and is achieved by the fact that in the pressure line of the common fuel pump P after the branch to the nozzle D ', there is an obstacle in the form of a spring-loaded valve in front of the branches to the nozzles D' and D3 V is on.

   The injection through the nozzles D2 and D3 connected to this organ is delayed and thus takes place later than that through the nozzle D ', which is connected to the line which branches off in front of the valve V. By changing the load on the latter, the delay in the injection can be regulated. If a further obstacle is switched on after the second nozzle, the injection of the nozzle D1 can also be delayed with respect to that through the nozzle D2, if this appears desirable.

 

Claims (1)

PATENTANSPRÜCHE: I. Verfahren zum Einführen des Brennstoffes in den Verbrennungsraum von Verbren nungsmotoren mit Einspritzung des Brenn stoffes allein in mehreren Strahlen mittelst einer einzigen Brennstoffpumpe, dadurch gekennzeichnet, dass die Einspritzung wenigstens einer der Brennstoffstrahlen vor den andern bewirkt wird, um eine Wirbelung der Verbrennungsluft herbei zuführen. PATENT CLAIMS: I. A method for introducing the fuel into the combustion chamber of internal combustion engines with injection of the fuel alone in several jets by means of a single fuel pump, characterized in that the injection of at least one of the fuel jets is effected before the others to swirl the combustion air bring about. II. Einrichtung zur Ausübung des Verfahrens gemäss Patentanspruch I, mit mehreren in den Verbrennungsraum mündenden, von der Brennstoffpumpe gespeisten Düsen, da durch gekennzeichnet, dass in den Brenn stoffzuleitungen einzelner Düsen ein Hemm nis eingeschaltet ist, das vom Druck des Brennstoffes überwunden werden muss, be vor der Brennstoff zur' Düse gelangen kann. UNTERANSPRUCH: Einrichtung nach Patentanspruch 1I, da durch gekennzeichnet, dass das Hemmnis ein federbelastetes Ventil ist. II. Device for carrying out the method according to claim I, with several nozzles opening into the combustion chamber and fed by the fuel pump, characterized in that an obstacle is switched on in the fuel supply lines of individual nozzles which must be overcome by the pressure of the fuel, before the fuel can reach the nozzle. SUBCLAIM: Device according to claim 1I, characterized in that the obstruction is a spring-loaded valve.
CH96739D 1921-01-20 1921-01-20 Method and device for introducing the fuel into the combustion chamber of internal combustion engines with injection of the fuel alone. CH96739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH96739T 1921-01-20

Publications (1)

Publication Number Publication Date
CH96739A true CH96739A (en) 1922-11-01

Family

ID=4354447

Family Applications (1)

Application Number Title Priority Date Filing Date
CH96739D CH96739A (en) 1921-01-20 1921-01-20 Method and device for introducing the fuel into the combustion chamber of internal combustion engines with injection of the fuel alone.

Country Status (1)

Country Link
CH (1) CH96739A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001683A1 (en) * 1986-08-29 1988-03-10 Elsbett L Fuel injection for direct-injection diesel engine
US5054445A (en) * 1989-11-15 1991-10-08 Man Nutzfahrzeuge Ag Fuel injection system for self-ignition internal combustion engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001683A1 (en) * 1986-08-29 1988-03-10 Elsbett L Fuel injection for direct-injection diesel engine
US4858579A (en) * 1986-08-29 1989-08-22 Elsbett L Fuel-injection for direct-injection diesel engine
US5054445A (en) * 1989-11-15 1991-10-08 Man Nutzfahrzeuge Ag Fuel injection system for self-ignition internal combustion engines

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