CH183765A - Injection nozzle for internal combustion engines. - Google Patents

Injection nozzle for internal combustion engines.

Info

Publication number
CH183765A
CH183765A CH183765DA CH183765A CH 183765 A CH183765 A CH 183765A CH 183765D A CH183765D A CH 183765DA CH 183765 A CH183765 A CH 183765A
Authority
CH
Switzerland
Prior art keywords
injection nozzle
nozzle
internal combustion
combustion engines
extension
Prior art date
Application number
Other languages
German (de)
Inventor
Graf Robert
Original Assignee
Graf Robert
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 Graf Robert filed Critical Graf Robert
Publication of CH183765A publication Critical patent/CH183765A/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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

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

  

  Einspritzdüse für     Verbrennungskraftmaschinen.       Die Erfindung betrifft eine Einspritzdüse  für     Verbrennungskraftmasohinen    und besteht  darin,     dass    ein     Einspritzöffn'ungen    aufweisen  der     Fortsatz    der Düse am freien Ende eine  Vertiefung besitzt. Der Übergang zwischen  der äussern Begrenzung des     Düsenfortsatzes     und der Vertiefung kann als Rotationsfläche  oder als scharfe Kante ausgebildet sein.  



  Einige Ausführungsbeispiele des Erfin  dungsgegenstandes sind auf der Zeichnung  schematisch dargestellt.  



       Fig.   <B>1</B> zeigt einen Schnitt durch den  innern Teil einer Einspritzdüse;       Fig.    2 und<B>3</B> zeigen weitere Düsenenden  in grösserem Massstab.  



  Der Düsenkörper<B>1</B> weist gemäss     Fig.   <B>1</B>  an seinem freien Ende einen kegelförmigen       Fortsatz    2 auf, in welchem die     Eingpritz-          öffnungen   <B>3</B> angeordnet sind. Das freie Ende  4 des     Fortsatzes    2 besitzt eine Vertiefung 4,  die zum Beispiel geschliffen ist.  



  Gemäss     Fig.    2 ist der Übergang zwischen  der äussern Begrenzung des     Düsenfortsatzes    2  und der Vertiefung 4 als Rotationsfläche<B>5</B>  ausgebildet und gemäss     Fig.   <B>3</B> als scharfe  Kante<B>6.</B>    Durch die Vertiefung am freien Ende  der Einspritzdüse wird verhindert,     dass    aus  den     DüseDöffnungen   <B>3</B> strömender Brennstoff  am freien Ende der Düse hängen bleibt,  verkokt und die Düsen verstopft. Dadurch  wird nicht nur die Betriebsdauer der Ma  schine, sondern auch die Lebensdauer der  Einspritzdüse erhöht.



  Injection nozzle for internal combustion engines. The invention relates to an injection nozzle for internal combustion engines and consists in that the extension of the nozzle has an indentation at the free end. The transition between the outer boundary of the nozzle extension and the recess can be designed as a surface of revolution or as a sharp edge.



  Some embodiments of the subject invention are shown schematically in the drawing.



       Fig. 1 shows a section through the inner part of an injection nozzle; Fig. 2 and <B> 3 </B> show further nozzle ends on a larger scale.



  According to FIG. 1, the nozzle body <B> 1 </B> has a conical extension 2 at its free end, in which the injection openings <B> 3 </B> are arranged. The free end 4 of the extension 2 has a recess 4, which is ground, for example.



  According to FIG. 2, the transition between the outer delimitation of the nozzle extension 2 and the recess 4 is designed as a surface of rotation <B> 5 </B> and according to FIG. <B> 3 </B> as a sharp edge <B> 6. < / B> The recess at the free end of the injection nozzle prevents fuel flowing out of the nozzle openings <B> 3 </B> from sticking to the free end of the nozzle, coking and clogging the nozzles. This not only increases the service life of the machine, but also increases the service life of the injection nozzle.

Claims (1)

<B>PATENTANSPRUCH:</B> Einspritzdüse für Verbrennungskraft- maschinen, dadurch gekennzeichnet, dass ein EinspritzöfFnungen aufweisender Fortsatz der Düse am freien Ende eine Vertiefung besitzt. UNTERANSPRüCHE: <B>1.</B> Einspritzdüse nach Patentanspruch, da durch gekennzeichnet, dass der Übergang zwischen der äussern Begrenzung des Düsenfortsatzes und der Vertiefung als Rotationsfläche ausgebildet ist. 2. <B> PATENT CLAIM: </B> Injection nozzle for internal combustion engines, characterized in that an extension of the nozzle having injection openings has a depression at the free end. SUBClaims: <B> 1. </B> Injection nozzle according to patent claim, characterized in that the transition between the outer boundary of the nozzle extension and the recess is designed as a surface of rotation. 2. Einspritzdüse nach Patentanspruch, da durch gekennzeichnet, dass die Vertiefung mit der äussern Begrenzung des Düsen- fortsatzes eine scharfe Kante bildet. Injection nozzle according to patent claim, characterized in that the recess forms a sharp edge with the outer delimitation of the nozzle extension.
CH183765D 1935-03-16 1935-03-16 Injection nozzle for internal combustion engines. CH183765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH183765T 1935-03-16

Publications (1)

Publication Number Publication Date
CH183765A true CH183765A (en) 1936-04-30

Family

ID=4432571

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183765D CH183765A (en) 1935-03-16 1935-03-16 Injection nozzle for internal combustion engines.

Country Status (1)

Country Link
CH (1) CH183765A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338522A1 (en) * 1973-07-30 1975-02-20 Bosch Gmbh Robert CAPACITOR, IN PARTICULAR IGNITION CAPACITOR FOR THE IGNITION DEVICE OF A MOTOR VEHICLE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338522A1 (en) * 1973-07-30 1975-02-20 Bosch Gmbh Robert CAPACITOR, IN PARTICULAR IGNITION CAPACITOR FOR THE IGNITION DEVICE OF A MOTOR VEHICLE

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