CH107282A - Fuel inlet control for injection internal combustion engines. - Google Patents

Fuel inlet control for injection internal combustion engines.

Info

Publication number
CH107282A
CH107282A CH107282DA CH107282A CH 107282 A CH107282 A CH 107282A CH 107282D A CH107282D A CH 107282DA CH 107282 A CH107282 A CH 107282A
Authority
CH
Switzerland
Prior art keywords
inlet control
internal combustion
fuel inlet
combustion engines
fuel
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Gebr Sulzer
Original Assignee
Sulzer Ag
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 Sulzer Ag filed Critical Sulzer Ag
Publication of CH107282A publication Critical patent/CH107282A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions

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

  

      Erennstoffeinlasssteuerung    für     Einspritzverbrennungskraftmaschinen.       Die Erfindung     betrifft    eine Brennstoffein  lasssteuerung für     Einspritzverbrennungskraft-          maschinen    und besteht darin, dass ausser dem  den Beginn und das Ende der Brennstoffein  spritzung steuernden     Abschlussorgan    ein eine  veränderliche Drosselung des     Brennstoffes    be  wirkendes, nach Art eines Drosselkegels aus  gebildetes Organ vorgesehen ist, zum Zweck,  unerwünschte Drucksteigerungen im Arbeits  zylinder während der Einspritzperiode zu ver  meiden.  



  Ein Ausführungsbeispiel des Erfindungs  gegenstandes ist auf der Zeichnung dargestellt.  In den Verbrennungsraum a einer     Ein-          spritzverbrennungskraftinaschine    mündet das  mit der     Brennstoffzuleitung    h versehene, ge  steuerte     Brennstoffeinlassventil    c. Es hat sich  gezeigt, dass es mit einem derartigen Ein  lassventil sehr schwierig ist, den zeitlichen  Verlauf der Einspritzung so zu beherrschen,  dass die Verbrennung im Arbeitszylinder bei  konstantem Druck erfolgt.

   Meistens gelangt  ein grosser Teil der abgemessenen     Brennstoff-          menge    schon zu Beginn der     Eröffnung    des         Einlassventils    so plötzlich in den Verbren  nungsraum,     dass    er, anstatt allmählich, ex  plosionsartig verbrennt und dadurch zu un  erwünschten Drucksteigerungen Anlass gibt.

    Zwecks     ver        meidung    solcher Drucksteigerungen  ist das Ventil mit einem in eine Düse d hin  einragenden     Fortsatz    e versehen, derart, dass  sich der freibleibende     Durchflussquerschnitt     der Düse beim Offnen des Ventils nur all  mählich erweitert und bei der Schliessbe  wegung des Ventils nur allmählich wieder  verengt.



      Fuel inlet control for internal combustion engines. The invention relates to a fuel inlet control for internal combustion engines and consists in the fact that, in addition to the closing element controlling the start and end of the fuel injection, a variable throttling of the fuel is provided in the manner of a throttle cone, for the purpose of undesired Avoid pressure increases in the working cylinder during the injection period.



  An embodiment of the subject invention is shown in the drawing. The controlled fuel inlet valve c provided with the fuel supply line h opens into the combustion chamber a of an injection internal combustion engine. It has been shown that with such an inlet valve it is very difficult to control the timing of the injection in such a way that the combustion in the working cylinder takes place at constant pressure.

   In most cases, a large part of the measured amount of fuel reaches the combustion chamber so suddenly at the beginning of the opening of the inlet valve that, instead of gradually, it burns like an explosion and thus gives rise to undesirable pressure increases.

    In order to avoid such pressure increases, the valve is provided with an extension e protruding into a nozzle d in such a way that the remaining free flow cross-section of the nozzle widens only gradually when the valve is opened and only gradually narrows again when the valve closes.

Claims (1)

PATENTANSPRUCH: Brennstoffeinlasssteuerung für Einspritz- verbrennungskraftmaschinen, dadurch gekenn zeichnet, dass ausser dem den Beginn und das Ende der Brennstoffeinspritzung steuern den Äbschlussorgari ein eine veränderliche Drosselung des Brennstoffes bewirkendes, nach Art eines Drosselkegels ausgebildetes Organ vorgesehen ist, zum Zweck, unerwünschte Drucksteigerungen imArbeitszylinder während der Einspritzperiode zu vermeiden. PATENT CLAIM: Fuel inlet control for injection internal combustion engines, characterized in that, in addition to controlling the start and end of the fuel injection, the termination organ is provided with a variable throttling of the fuel, designed in the manner of a throttle cone, for the purpose of preventing undesired pressure increases in the working cylinder during the Avoid injection period. UNTERANSPRUCH: Brennstoffeinlasssteuerung nach Patentan spruch, dadurch gekennzeichnet, dass das Drosselorgan als Fortsatz des Abschluss- organes ausgebildet ist. SUBCLAIM: Fuel inlet control according to patent claim, characterized in that the throttle element is designed as an extension of the closing element.
CH107282D 1923-12-17 1923-12-17 Fuel inlet control for injection internal combustion engines. CH107282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH107282T 1923-12-17

Publications (1)

Publication Number Publication Date
CH107282A true CH107282A (en) 1925-01-16

Family

ID=4366189

Family Applications (1)

Application Number Title Priority Date Filing Date
CH107282D CH107282A (en) 1923-12-17 1923-12-17 Fuel inlet control for injection internal combustion engines.

Country Status (1)

Country Link
CH (1) CH107282A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861344C (en) * 1948-10-02 1952-12-29 Bosch Gmbh Robert Injection valve for internal combustion engines
US3035780A (en) * 1960-05-20 1962-05-22 Renault Fuel injection nozzles for internal combustion engines
US5207385A (en) * 1989-10-26 1993-05-04 Lucas Industries Public Limited Company Fuel injection nozzle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861344C (en) * 1948-10-02 1952-12-29 Bosch Gmbh Robert Injection valve for internal combustion engines
US3035780A (en) * 1960-05-20 1962-05-22 Renault Fuel injection nozzles for internal combustion engines
US5207385A (en) * 1989-10-26 1993-05-04 Lucas Industries Public Limited Company Fuel injection nozzle

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