DE371572C - Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine - Google Patents

Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine

Info

Publication number
DE371572C
DE371572C DEM74295D DEM0074295D DE371572C DE 371572 C DE371572 C DE 371572C DE M74295 D DEM74295 D DE M74295D DE M0074295 D DEM0074295 D DE M0074295D DE 371572 C DE371572 C DE 371572C
Authority
DE
Germany
Prior art keywords
fuel
internal combustion
injection
combustion engine
chamber
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
DEM74295D
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.)
Motorenfabrik A G
Original Assignee
Motorenfabrik A G
Publication date
Priority to DEM74295D priority Critical patent/DE371572C/en
Application granted granted Critical
Publication of DE371572C publication Critical patent/DE371572C/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
    • 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
    • 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
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves

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

Einspritzventil mit Reinigungsnadel zum unmittelbaren Einspritzen von Brennstoff in den Verdichtungsraum bzw. die Zündkammer oder den Glühkopf einer Verbrennungsmaschine. Gegenstand der Erfindung ist eine Düse für Einspritzverbrennungskraftmaschinen zum direkten Einstäuben des Brennstoffes, z. B. in einen Glühkopf oder eine Zündkammer von Verbrennungskraftmaschinen ohne Zuhilfenahme von Einblaseluft.Injection valve with cleaning needle for immediate injection of fuel in the compression chamber or the ignition chamber or the glow head of a Internal combustion engine. The invention relates to a nozzle for internal combustion engines for direct dusting of the fuel, e.g. B. in a glow head or an ignition chamber of internal combustion engines without the aid of air injection.

Die Düse gehört zu der Gattung von Zerstäubern, bei welchen durch den Druckhub der Brennstoffpumpe ein im Düsenkörper a (siehe beiliegende Zeichnung) vorgesehener eingeschliffener und von einer Feder b belasteter Kolben c angehoben wird, wodurch der Brennstoff durch die feine Öffnung d im Düseneinsatz e in den Kompressionsraum bzw. den Glühkopf oder die Zündkammer des Klotors eingespritzt wird. Das als Abschlußventil dienende Ende des Kolbens trägt eine in die Ausspritzöffnung d eindringende Nadel f, die den erforderlichen sehr kleinen Querschnitt an dieser Stelle ermöglicht und durch ihre Bewegungen die Öffnung stets rein erhält.The nozzle belongs to the genus of atomizers in which through the pressure stroke of the fuel pump in the nozzle body a (see attached drawing) provided ground and by a spring b loaded piston c raised is, whereby the fuel through the fine opening d in the nozzle insert e into the Compression chamber or the glow head or ignition chamber of the Klotor injected will. The end of the piston serving as a shut-off valve carries one into the injection opening d penetrating needle f, which required the very small cross-section on this And keeps the opening clean through its movements.

Es hat sich nun in der Praxis gezeigt, daß es sehr schwer ist, ein Klemmen der Nadel in der Öffnung und ein dadurch bedingtes Steckenbleiben des Kolbens c zu verhüten, wenn der Einsatz e - wie bisher üblich - mit gewöhnlichem zylindrischem Gewinde eingeschraubt ist, da sich solches Gewinde beim Einschrauben sehr unzuverlässig zentriert. Dieser Übelstand wird bei der vorliegenden Erfindung dadurch behoben, daß der Düseneinsatz e in den Düsenkörper a mit konischem Gewinde eingeschraubt wird, das sich erfahrungsgemäß stets genau zentrisch einschraubt, zugleich eine zuverlässige Abdichtung herbeiführt und eine gute Wärmeübertragung zwischen dem Einsatz e und dem Düsenkörper gewährleistet, so daß ein Verkoken der Ausspritzöffnung vermieden wird. Bei den sonst üblichen Düsen dieser Art wird der Einsatz durch eine Überwurfschraube in den Düsenkörper gepreßt und es ist dann ein Gewindegang in den Umfang des Einsatzes eingeschnitten, durch den der Brennstoff gepreßt wird. Hierdurch gelangt derselbe in eine kreisende Bewegung, ehe er in die Ausspritzöffnung tritt, wodurch die Zerstäubung unterstützt wird. Dieselbe Wirkung wird bei der vorliegenden Erfindung durch einen Gewindegang g erreicht, der in das Ende des Kolbens hineingeschnitten ist, das in den Einsatz e schließend eindringt und unten die Nadel f trägt.It has now been shown in practice that it is very difficult to obtain a Jamming of the needle in the opening and the resulting sticking of the plunger c to prevent if the insert e - as usual - with a normal cylindrical Thread is screwed in, as such a thread is very unreliable when screwed in centered. This drawback is remedied in the present invention by that the nozzle insert e is screwed into the nozzle body a with a conical thread which experience shows that it always screws in exactly in the center, at the same time a Provides reliable sealing and good heat transfer between the Insert e and the nozzle body ensured, so that coking of the injection opening is avoided. With the otherwise common nozzles of this type, the use is through a Union screw pressed into the nozzle body and there is then a thread in the Cut into the circumference of the insert through which the fuel is forced. Through this the same goes into a circular motion before it enters the injection opening, whereby the atomization is supported. The same effect is obtained with the present Invention achieved by a thread g cut into the end of the piston is that penetrates the insert e closing and carries the needle f below.

Claims (1)

PATENT-ANsPIzucH: Einspritzventil mit Reinigungsnadel zum unmittelbaren Einspritzen von Brennstoff in den Verdichtungsraum bzw. die Zündkammer oder den Glühkopf einer Verbrennungsmaschine, dadurch gekennzeichnet, daß die Ausspritzöffnung (d), in welche die Reinigungsnadel eindringt, in einem Einsatz (e) angeordnet ist, der in den Düsenkörper (a) vermittelst konischen Gewindes eingeschraubt ist.PATENT APPLICATION: Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine, characterized in that the injection opening (d) into which the cleaning needle penetrates is arranged in an insert (e), which is screwed into the nozzle body (a) by means of a conical thread.
DEM74295D Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine Expired DE371572C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM74295D DE371572C (en) Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM74295D DE371572C (en) Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine

Publications (1)

Publication Number Publication Date
DE371572C true DE371572C (en) 1923-03-16

Family

ID=7315574

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM74295D Expired DE371572C (en) Injection valve with cleaning needle for direct injection of fuel into the compression chamber or the ignition chamber or the glow head of an internal combustion engine

Country Status (1)

Country Link
DE (1) DE371572C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899295C (en) * 1949-07-12 1953-12-10 Muenchner Motorzubehoer G M B Injection nozzle for internal combustion engines
DE921368C (en) * 1950-11-14 1954-12-16 Stuttgarter Motorzubehoer G M Needle nozzle for internal combustion engines
US2743961A (en) * 1951-10-29 1956-05-01 L Orange Rudolf Needle nozzle for internal combustion engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899295C (en) * 1949-07-12 1953-12-10 Muenchner Motorzubehoer G M B Injection nozzle for internal combustion engines
DE921368C (en) * 1950-11-14 1954-12-16 Stuttgarter Motorzubehoer G M Needle nozzle for internal combustion engines
US2743961A (en) * 1951-10-29 1956-05-01 L Orange Rudolf Needle nozzle for internal combustion engines

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