DE579211C - Injection nozzle for internal combustion engines - Google Patents

Injection nozzle for internal combustion engines

Info

Publication number
DE579211C
DE579211C DEH112889D DEH0112889D DE579211C DE 579211 C DE579211 C DE 579211C DE H112889 D DEH112889 D DE H112889D DE H0112889 D DEH0112889 D DE H0112889D DE 579211 C DE579211 C DE 579211C
Authority
DE
Germany
Prior art keywords
needle
nozzle
internal combustion
combustion engines
injection nozzle
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
DEH112889D
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.)
MASCHB
Friedrich Deckel Praezisions Mechanik und Maschinenbau
Original Assignee
MASCHB
Friedrich Deckel Praezisions Mechanik und Maschinenbau
Publication date
Priority to DEH112889D priority Critical patent/DE579211C/en
Application granted granted Critical
Publication of DE579211C publication Critical patent/DE579211C/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
    • F02M61/04—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
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/074—Injection valve actuated by fuel pressure for pressurised fuel supply

Description

Einspritzdüse für Verbrennungskraftmaschinen Die Erfindung ist eine weitere Ausbildung der in dem Patent 489 5o9 beschriebenen Ausführungsform einer Einspritzdüse für Verbrennungskraftmaschinen. Bei diesem Patent ist die Düsennadel nach Art eines freien Bendels gelenkig aufgehängt, wobei die Abdichtung des Düsenvorraumes durch eine Membran bewirkt und die Beweglichkeit der Düsennadel durch eine federbelastete Führungs# hülse gedämpft wird.Injector Nozzle for Internal Combustion Engines The invention is one further development of the embodiment described in the patent 489 509 Injection nozzle for internal combustion engines. In this patent is the nozzle needle articulated in the manner of a free bend, with the sealing of the nozzle antechamber caused by a membrane and the mobility of the nozzle needle by a spring-loaded Guide sleeve is damped.

Bei vorliegender Erfindung ist die schwierig herzustellende und wenig betriebssichere Membran durch einen einfachen, dicht ge. führten Kolben, der in an sich bekannter Weise die Nadel trägt, ersetzt, wodurch der Aufbau des Düsenkörpers bedeutend vereinfacht wird. Ferner ist die Lagerung der :Nadel tief im Kolben angeordnet, so daß der rohrförmige Teil des Kolbens gleichzeitig zur Begrenzung der Nadelbewegung dienen kann. Diese Bauart ermöglicht ferner ohne Vergrößerung des Düsenkörpers die Verwendung eines sehr langen Kolbens, dessen große Führungsfläche eine sichere Abdichtung des Düsenvorraumes gewährleistet.In the present invention, it is difficult to manufacture and little reliable membrane through a simple, tight ge. led piston that is in in a known manner, the needle carries, replaced, whereby the structure of the nozzle body is significantly simplified. Furthermore, the storage of the: needle is arranged deep in the piston, so that the tubular part of the plunger simultaneously limits needle movement can serve. This design also allows without enlarging the nozzle body Use of a very long piston, the large guide surface of which ensures a secure seal the nozzle vestibule guaranteed.

Auf der Zeichnung ist die Erfindung beispielsweise dargestellt.The invention is shown in the drawing, for example.

In einer Bohrung des Körpers i der Düse ist ein Kolben z angeordnet, der durch eine Feder 7 nach unten gedrückt wird. Der Kolben ist von einer Seite aufgebohrt; die Düsennadel 3 mit halbkugelförmigem Ende paßt mit geringem Spiel in diese Bohrung und wird am oberen Ende durch einen kleinen Stift 4 gehalten. Der Stift' ist nur lose befestigt, so daß eine allseitige Bewegung der Nadel nach Art eines freien Pendels möglich ist. Das andere Ende der Nadel 3 ist gleichfalls kugelförmig ausgebildet und dient zur Abdichtung der öffnung des Düsenplättchens 5, welches durch eine überwurfmutter 6 gegen den Düsenkörper i gedrückt wird. Die lichte Weite der Kolbenbohrung ist nur wenig größer als der Nadeldurchmesser, so daß die Nadel zwar den geringen Seitenabweichungen der Düsenöffnung von der Führungsachse, die beim Einbau unvermeidlich sind, zu folgen vermag, aber nicht unnötig weit ausschlagen kann.A piston z is arranged in a bore of the body i of the nozzle, which is pressed down by a spring 7. The piston is from one side reamed; the nozzle needle 3 with a hemispherical end fits with little play into this hole and is held at the upper end by a small pin 4. Of the The pin is only loosely attached, so that the needle can be moved in all directions according to Art a free pendulum is possible. The other end of the needle 3 is also spherical formed and serves to seal the opening of the nozzle plate 5, which is pressed by a union nut 6 against the nozzle body i. The clear width the piston bore is only slightly larger than the needle diameter, so that the needle although the small lateral deviations of the nozzle opening from the guide axis, the are unavoidable during installation, able to follow, but not deflect unnecessarily far can.

Claims (1)

PATENTANSPRUCH: Einspritzdüse für * Verbrennungskraft. insbesondere mit luftloser Einspritzung, bei welcher nach dem Patent 489 5o9 die Düsennadel frei beweglich aufgehängt ist, dadurch gekennzeichnet, daß als Träger der Nadel in an sich bekannter Weise ein dicht. geführter Kolben dient und die Nadel in einer Bohrung desselben aufgehängt ist, die nur so weit ist, daß die Nadel nach allen Seiten genügend Bewegungsfreiheit hat, in weiteren Bewegungen aber begrenzt ist.PATENT CLAIM: Injector for * combustion power. in particular with airless injection, in which, according to patent 489 509, the nozzle needle is free is movably suspended, characterized in that as a carrier of the needle in known way a tight. guided piston is used and the needle in a bore the same is suspended, which is only so far that the needle is sufficient in all directions Has freedom of movement, but is limited in further movements.
DEH112889D Injection nozzle for internal combustion engines Expired DE579211C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH112889D DE579211C (en) Injection nozzle for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH112889D DE579211C (en) Injection nozzle for internal combustion engines

Publications (1)

Publication Number Publication Date
DE579211C true DE579211C (en) 1933-06-27

Family

ID=7171671

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH112889D Expired DE579211C (en) Injection nozzle for internal combustion engines

Country Status (1)

Country Link
DE (1) DE579211C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771321A (en) * 1952-09-26 1956-11-20 Alric Gustave Fuel injectors
DE1102482B (en) * 1958-06-14 1961-03-16 Motorpal Jihlava Np Fuel injection nozzle for internal combustion engines
DE1212352B (en) * 1960-02-20 1966-03-10 Orange G M B H L Fuel injection valve with fuel-controlled valve needle
FR2319024A1 (en) * 1975-07-21 1977-02-18 Johnson Lloyd FUEL INJECTOR AND ITS MOUNTING METHOD AND APPARATUS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771321A (en) * 1952-09-26 1956-11-20 Alric Gustave Fuel injectors
DE1102482B (en) * 1958-06-14 1961-03-16 Motorpal Jihlava Np Fuel injection nozzle for internal combustion engines
DE1212352B (en) * 1960-02-20 1966-03-10 Orange G M B H L Fuel injection valve with fuel-controlled valve needle
FR2319024A1 (en) * 1975-07-21 1977-02-18 Johnson Lloyd FUEL INJECTOR AND ITS MOUNTING METHOD AND APPARATUS

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