EP0569655B1 - Injection nozzle for a fuel injection device - Google Patents

Injection nozzle for a fuel injection device Download PDF

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Publication number
EP0569655B1
EP0569655B1 EP92810347A EP92810347A EP0569655B1 EP 0569655 B1 EP0569655 B1 EP 0569655B1 EP 92810347 A EP92810347 A EP 92810347A EP 92810347 A EP92810347 A EP 92810347A EP 0569655 B1 EP0569655 B1 EP 0569655B1
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EP
European Patent Office
Prior art keywords
roughly
nozzle
nozzle head
injection
fuel injection
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 - Lifetime
Application number
EP92810347A
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German (de)
French (fr)
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EP0569655A1 (en
Inventor
Wilfried Pernter
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.)
Winterthur Gas and Diesel AG
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Winterthur Gas and Diesel 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 Winterthur Gas and Diesel AG filed Critical Winterthur Gas and Diesel AG
Priority to DK92810347.2T priority Critical patent/DK0569655T3/en
Priority to DE59205180T priority patent/DE59205180D1/en
Priority to EP92810347A priority patent/EP0569655B1/en
Priority to JP5074361A priority patent/JPH0719147A/en
Priority to KR1019930005844A priority patent/KR100373786B1/en
Priority to CN93105390A priority patent/CN1035210C/en
Priority to FI932107A priority patent/FI104751B/en
Publication of EP0569655A1 publication Critical patent/EP0569655A1/en
Application granted granted Critical
Publication of EP0569655B1 publication Critical patent/EP0569655B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • 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
    • F02M61/166—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines

Definitions

  • the invention relates to a nozzle head for the injection nozzle of the fuel injection device of internal combustion engines, and an injection nozzle or an injection device and an internal combustion engine or an engine, in particular a diesel engine.
  • the nozzle head of the injection nozzle of the fuel injection of an internal combustion engine is a typical wear part, particularly in engines with direct injection of the fuel into the combustion chamber.
  • the material is exposed to high temperatures and changes in temperature.
  • the temperature changes continuously between the ignition temperature and the temperature of the newly introduced air, which also leads to temperature changes on the outer wall of the nozzle head of the injection nozzle.
  • the intermittent injection of the fuel also leads to shock-like temperature changes.
  • Particularly aggressive and known for high temperature corrosion is, for example, the proportion of sodium and vanadium in the fuel and the sodium vanadyl vanadate or vanadium pentoxide, VO5 that forms.
  • the sulfur compounds that form can also have a corrosive effect.
  • the object of the invention is to provide a nozzle head for an injection nozzle which has an increased service life and service life under the most unfavorable circumstances.
  • the invention is also intended to provide an improved fuel injection for fuel engines, in particular for diesel engines, with regard to maintenance and reliability, and thus also an engine with improved maintenance and reliability.
  • a nozzle head for an injection nozzle is characterized by the features of independent claim 1.
  • the fuel injection has an injection nozzle with such a nozzle head and the engine is provided with such a fuel injection with a new nozzle head.
  • the dependent claims relate to particularly advantageous forms of the invention.
  • the material from which the nozzle head of the fuel injection nozzle is made is a so-called mechanically alloyed, high-alloy chromium-nickel-based alloy.
  • the chromium-nickel steel carbon (C), aluminum (Al), titanium (Ti), iron (Fe), nitrogen (N), oxygen (O) and yttrium oxide (Y2O3) are added.
  • Steels alloyed in this way are not produced and alloyed by casting, but in a kind of sintering process, under mechanical processing, a kind of forging.
  • the steels are also referred to as "dispersion alloy, oxide dispersion hardened, or high temperature hardened".
  • Their manufacture is a type of thermomechanical sintering that takes place at high temperatures, the mechanical treatment being followed by a heat treatment.
  • the material used for the nozzle head of the injection nozzle is a mechanically high-alloy chrome-nickel steel.
  • the steel contains carbon, aluminum, titanium, iron and yttrium oxide as additives. Small amounts of oxygen and / or nitrogen are not troublesome.
  • the nozzle head of the injection nozzle has a service life that is approximately twice that of previously known nozzle heads for injection nozzles.
  • a nozzle head made of MA 758 has shown about twice the service life in the aggressive, chemical and thermal environment of the combustion chamber of diesel engines compared to previously known nozzle heads. This corresponds to an operating life of over 10,000 hours, or a TBO (Time Between Overhaul) of around two years or more, for example for a marine diesel engine.
  • TBO Time Between Overhaul
  • part of a fuel injection nozzle 1 with the nozzle head 2 is shown in section, in a side view.
  • the two spray holes 21 shown of several, e.g. five spray holes are radial. slightly downward.
  • the fuel is supplied to the spray holes 21 via the central channel 20 and then injected radially, slightly inclined downwards, into the combustion chamber or cylinder chamber, advantageously in the direction of the circulation prevailing in the combustion chamber.
  • this type of injection especially the part 22 of the jacket of the nozzle head 2 opposite the spray holes 21 is subject to increased chemical and thermal stress, among other things. also corrosive influences, exposed and is eaten and destroyed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Die Erfindung bezieht sich auf einen Düsenkopf für die Einspritzdüse der Kraftstoff-Einspritzungvorrichtung von Verbrennungsmotoren, sowie eine Einspritzdüse bzw. eine Einspritzvorrichtung und eine Brennkraftmaschine bzw. einen Motor, insbesondere einen Dieselmotor.The invention relates to a nozzle head for the injection nozzle of the fuel injection device of internal combustion engines, and an injection nozzle or an injection device and an internal combustion engine or an engine, in particular a diesel engine.

Der Düsenkopf der Einspritzdüse der Brennstoff-Einspritzung eines Verbrennungmotors, in der Fachsprache häufig auch mit Atomizer bezeichnet, ist besonders bei Motoren mit Direkteinspritzung des Brennstoffs in den Verbrennungsraum ein typisches Verschleissteil. Der Werkstoff ist hohen Temperaturen, und Temperaturwechseln ausgesetzt. Im Brennraum, beispielsweise wechselt die Temperatur laufend zwischen der Zündtemperatur und der Temperatur der neuzugeführten Luft, was auf der Aussenwand des Düsenkopfs der Einspritzdüse ebenfalls zu Temperaturwechseln führt. Im Innern der Düse, durch die der Brennstoff geführt wird, führt das intermittierende Einspritzen des Brennstoffs ebenfalls, aber zu schockartigen Temperaturwechseln.The nozzle head of the injection nozzle of the fuel injection of an internal combustion engine, often also called atomizer in technical terminology, is a typical wear part, particularly in engines with direct injection of the fuel into the combustion chamber. The material is exposed to high temperatures and changes in temperature. In the combustion chamber, for example, the temperature changes continuously between the ignition temperature and the temperature of the newly introduced air, which also leads to temperature changes on the outer wall of the nozzle head of the injection nozzle. In the interior of the nozzle through which the fuel is passed, the intermittent injection of the fuel also leads to shock-like temperature changes.

Darüberhinaus ist auch die korrosive Belastung der Düse, bei den hohen Temperaturen im Brennraum und aggressiven Verbindungen im Brennstoff, oder solchen, die sich aus Teilen des Brennstoffs mit der Luft, im Abgas bilden, sehr hoch.In addition, there is also the corrosive load on the nozzle, due to the high temperatures in the combustion chamber and aggressive compounds in the fuel, or those resulting from Share the fuel with the air in the exhaust gas, very high.

Im Brennraum herrscht eine grosse Zirkulation der Gase. Das Einspritzen des Kraftstoffs durch die Löcher im Düsenkopf erfolgt in der Regel in Richtung der Wirbelströmung. Dies hat zur Folge, dass die aggressiven und heissen Verbrennungsgase auf die den Einspritzlöchern entgegengesetzten Seite des Düsenkopfes auftreffen. Die Gase haben (immerhin) eine Temperatur von einigen hundert bis zu über tausend Grad Celsius. Dies führt beispielsweise bei Grossdieselmotoren zu Abbrand an der Rückseite des Düsenkopfs der Einspritzdüsen, d.h. auf der den Düsenlöchern gegenüberliegenden Seite des Mantels des Düsenkopfs. Chemische Aggressivität und Korrosion sind durch den verwendeten Treibstoff und die Betriebsbedingungen des Motors beeinflusst. Besonders aggressiv und bekannt bei Hochtemperaturkorrosion (also kritisch) ist beispielsweise der Anteil Natrium und Vanadium im Brennstoff und das sich bildende Natrium-Vanadyl-Vanadat oder Vanadium Pentoxyd, VO₅. Beim Stillstand der Motoren, können auch die sich bildenden Schwefelverbindungen korrosiv wirken.There is a large circulation of gases in the combustion chamber. The fuel is usually injected through the holes in the nozzle head in the direction of the vortex flow. As a result, the aggressive and hot combustion gases hit the side of the nozzle head opposite the injection holes. The gases have (after all) a temperature of a few hundred to over a thousand degrees Celsius. In large diesel engines, for example, this leads to erosion at the rear of the nozzle head of the injection nozzles, i.e. on the side of the jacket of the nozzle head opposite the nozzle holes. Chemical aggressiveness and corrosion are influenced by the fuel used and the operating conditions of the engine. Particularly aggressive and known for high temperature corrosion (critical) is, for example, the proportion of sodium and vanadium in the fuel and the sodium vanadyl vanadate or vanadium pentoxide, VO₅ that forms. When the motors are at a standstill, the sulfur compounds that form can also have a corrosive effect.

Die bisher besten Düsenköpfe bekannter Bauart, sind nach einer Einsatzdauer im Betrieb von einigen Tausend Stunden, typisch etwa 3'000 - 5'000 Stunden, zu ersetzten. Diese bisherigen Düsenköpfe bekannter Bauart und bisher bester Qualität sind aus Stellit/Titan Legierungen gearbeitet. Es gibt eine Vielzahl von Werkstoffen, die an und für sich für verbesserte Standzeiten geeignet sein könnten. In der Praxis waren die Standzeiten jedoch - wenn überhaupt - nur unbedeutend verschieden von jenen der Düsenköpfe aus bisher verwendeten Werkstoffen.The best known nozzle heads to date have to be replaced after a period of operation of a few thousand hours, typically around 3,000 to 5,000 hours. These previous nozzle heads of known design and best quality so far are made of stellite / titanium alloys. There are a variety of materials that in and of themselves could be suitable for improved tool life. In practice, however, the service life was - if at all - only slightly different from that of the nozzle heads made of materials previously used.

Katayama et al. beschreiben in Chemical Abstracts, Vol. 110, 38(424), Seiten 69-74, 1989 Labor-Tests und Feld-Versuche mit Düsenköpfen für Marine-Dieselmotoren aus hochlegierten Ni-Cr-Al-Legierungen, die Wartungsintervalle von mehr als zwei Jahren erwarten lassen.Katayama et al. describe laboratory tests and field tests with nozzle heads for marine diesel engines in Chemical Abstracts, Vol. 110, 38 (424), pages 69-74, 1989 high-alloy Ni-Cr-Al alloys that can be expected to have maintenance intervals of more than two years.

Aufgabe der Erfindung ist es, einen Düsenkopf für eine Einspritzdüse zu schaffen, der unter den ungünstigsten Umständen eine erhöhte Standzeit und Lebensdauer hat.The object of the invention is to provide a nozzle head for an injection nozzle which has an increased service life and service life under the most unfavorable circumstances.

Weiterhin soll die Erfindung eine, bezüglich Wartung und Zuverlässigkeit, verbesserte Kraftstoff-Einspritzung für Kraftstoffmotoren, insbesondere für Dieselmotoren, somit auch einen bezüglich Wartung und Zuverlässigkeit verbesserten Motor bringen. Nach der Erfindung ist ein derartiger Düsenkopf für eine Einspritzdüse durch die Merkmale des unabhängigen Anspruchs 1 gekennzeichnet. Die Kraftstoffeinspritzung weist eine Einspritzdüse mit einem solchen Düsenkopf auf und der Motor ist mit einer derartigen Kraftstoffeinspritzung mit einem neuen Düsenkopf versehen. Die abhängigen Ansprüche beziehen sich auf besonders vorteilhafte Formen der Erfindung.The invention is also intended to provide an improved fuel injection for fuel engines, in particular for diesel engines, with regard to maintenance and reliability, and thus also an engine with improved maintenance and reliability. According to the invention, such a nozzle head for an injection nozzle is characterized by the features of independent claim 1. The fuel injection has an injection nozzle with such a nozzle head and the engine is provided with such a fuel injection with a new nozzle head. The dependent claims relate to particularly advantageous forms of the invention.

Beim Werkstoff, aus welcher der Düsenkopf der Kraftstoffeinspritzdüse hergestellt ist, handelt es sich um eine sogenannte mechanisch legierte, hochlegierte Chrom-Nickel-Basis-Legierung. Als Zusätze sind dem Chrom-Nickel-Stahl Kohlenstoff (C), Aluminium (Al), Titan (Ti), Eisen (Fe), Stickstoff (N), Sauerstoff (O) und Yttriumoxid (Y₂O₃) zugesetzt.The material from which the nozzle head of the fuel injection nozzle is made is a so-called mechanically alloyed, high-alloy chromium-nickel-based alloy. As additives, the chromium-nickel steel carbon (C), aluminum (Al), titanium (Ti), iron (Fe), nitrogen (N), oxygen (O) and yttrium oxide (Y₂O₃) are added.

Beispielsweise wurde mit Düsenköpfen für Kraftstoff-Einspritzdüsen aus unter der Bezeichnung/Marke "INCONEL alloy MA 758" (Hersteller Inco Alloys International Hereford, England) im Handel erhältichen Legierung auf Anhieb eine doppelte bis dreifache Standzeit erreicht.For example, with nozzle heads for fuel injection nozzles made of alloy commercially available under the name / brand "INCONEL alloy MA 758" (manufacturer Inco Alloys International Hereford, England), a double to triple service life was achieved straight away.

Derartig legierte Stähle werden nicht durch Giessen, sondern in einer Art Sinterprozess, unter mechanischer Bearbeitung, einer Art Schmieden, hergestellt und legiert. Die Stähle werden auch mit "dispersionslegiert, oxiddispersions-verfestigt, oder hochtemperatur-verfestigt" bezeichnet. Es handelt sich bei deren Herstellung um eine Art thermomechanisches Sintern das bei hohen Temperaturen erfolgt, wobei der mechanischen Behandlung noch eine Wärmebehandlung folgt.Steels alloyed in this way are not produced and alloyed by casting, but in a kind of sintering process, under mechanical processing, a kind of forging. The steels are also referred to as "dispersion alloy, oxide dispersion hardened, or high temperature hardened". Their manufacture is a type of thermomechanical sintering that takes place at high temperatures, the mechanical treatment being followed by a heat treatment.

Der für den Düsenkopf der Einspritzdüse verwendete Werkstoff ist ein mechanisch hoch-legierter Chrom-Nickelstahl. Als Zusätze enthält der Stahl Kohlenstoff, Aluminium, Titan, Eisen und Yttriumoxyd. Kleine Mengen von Sauerstoff und/oder Stickstoff sind nicht störend. Der Düsenkopf der Einspritzdüse hat in der aggressiven, chemischen und thermischen Umgebung des Brennraums von Verbrennungsmotoren, wie Dieselmotoren, eine etwa doppelte Standzeit im Vergleich zu bisher bekannten Düsenköpfen für Einspritzdüsen.The material used for the nozzle head of the injection nozzle is a mechanically high-alloy chrome-nickel steel. The steel contains carbon, aluminum, titanium, iron and yttrium oxide as additives. Small amounts of oxygen and / or nitrogen are not troublesome. In the aggressive, chemical and thermal environment of the combustion chamber of internal combustion engines, such as diesel engines, the nozzle head of the injection nozzle has a service life that is approximately twice that of previously known nozzle heads for injection nozzles.

Ein Düsenkopf aus MA 758 hat in der aggressiven, chemischer und thermischen Umgebung des Brennraums von Dieselmotoren eine etwa doppelte Standzeit im Vergleich zu bisher bekannten Düsenköpfen gezeigt. Dies entspricht einer Betriebs-Lebensdauer von über 10'000 Stunden, bzw. einer TBO (Time Between Overhaul) von etwa zwei Jahren oder mehr, für beispielsweise einen Schiffsdieselmotor.A nozzle head made of MA 758 has shown about twice the service life in the aggressive, chemical and thermal environment of the combustion chamber of diesel engines compared to previously known nozzle heads. This corresponds to an operating life of over 10,000 hours, or a TBO (Time Between Overhaul) of around two years or more, for example for a marine diesel engine.

In der schematischen Figur ist, im Schnitt, in einer Seitenansicht, ein Teil einer Kraftstoffeinspritzdüse 1 mit dem Düsenkopf 2 gezeigt. Die beiden gezeigten Spritzlöcher 21 von mehreren, z.B. fünf Spritzlöchern, sind radial. leicht nach unten gerichtet. Der Kraftstoff wird den Spritzlöchern 21 über den zentralen Kanal 20 zugeführt und dann radial, leicht nach unten geneigt, in den Brennraum bzw. Zylinderraum, mit Vorteil in Richtung der im Brennraum herrschenden Zirkulation, eingespritzt. Bei dieser Art des Einspritzens, ist vor allem der den Spritzlöchern 21 gegenüberliegende Teil 22 des Mantels des Düsenkopfs 2 erhöhter chemischer und thermischer Belastung, u.a. auch korrosiven Einflüssen, ausgesetzt und wird zerfressen und zerstört.In the schematic figure, part of a fuel injection nozzle 1 with the nozzle head 2 is shown in section, in a side view. The two spray holes 21 shown of several, e.g. five spray holes are radial. slightly downward. The fuel is supplied to the spray holes 21 via the central channel 20 and then injected radially, slightly inclined downwards, into the combustion chamber or cylinder chamber, advantageously in the direction of the circulation prevailing in the combustion chamber. In this type of injection, especially the part 22 of the jacket of the nozzle head 2 opposite the spray holes 21 is subject to increased chemical and thermal stress, among other things. also corrosive influences, exposed and is eaten and destroyed.

Claims (7)

  1. A nozzle head for the injection nozzle of a fuel injection device, for an internal combustion engine, preferably for an internal combustion engine with self-ignition, the nozzle head being made from a mechanically alloyed chromium-nickel steel, which is alloyed with carbon (C), aluminium (Al), iron (Fe), titanium (Ti), nitrogen (N), oxygen (O) and yttric oxide (Y₂O₃).
  2. A nozzle head according to Claim 1, made from a mechanically alloyed chromium-nickel steel, which, with respect to the weight, is alloyed with roughly 0.005% to roughly 1% C, roughly 0.05% to roughly 5% Al, roughly 0.05% to roughly 5% Fe, roughly 0.05% to roughly 2% nitrogen (N), roughly 0.05 to roughly 5% oxygen (O), roughly 0.05% to roughly 5% Ti, roughly 0.05 to roughly 5% Y₂0₃ and contains roughly 25% to roughly 35% Cr and the remainder Ni.
  3. A nozzle head according to Claim 2, made from a chromium-nickel steel, which, with respect to the total weight of the material, contains roughly 0.045% C, roughly 0.330% Al and Fe, roughly 0.158% N, roughly 0.350% O, roughly 0.500% Ti, roughly 0.560% Y₂0₃, roughly 30.54% Cr and the remainder Ni.
  4. An injection nozzle for an internal combustion engine, having a nozzle head as specified in one of Claims 1 to 3.
  5. A fuel injection device for an internal combustion engine having an injection nozzle, with a nozzle head, as specified in one of Claims 1 to 3.
  6. An internal combustion engine having a fuel injection device as specified in Claim 5.
  7. An engine, especially a diesel engine having a fuel injection device having an injection nozzle as specified in Claim 5.
EP92810347A 1992-05-11 1992-05-11 Injection nozzle for a fuel injection device Expired - Lifetime EP0569655B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK92810347.2T DK0569655T3 (en) 1992-05-11 1992-05-11 Nozzle head for a fuel injection device
DE59205180T DE59205180D1 (en) 1992-05-11 1992-05-11 Nozzle head for a fuel injector
EP92810347A EP0569655B1 (en) 1992-05-11 1992-05-11 Injection nozzle for a fuel injection device
JP5074361A JPH0719147A (en) 1992-05-11 1993-03-31 Nozzle head for fuel injection device
KR1019930005844A KR100373786B1 (en) 1992-05-11 1993-04-08 Nozzle Head for Fuel Injection
CN93105390A CN1035210C (en) 1992-05-11 1993-05-10 A nozzle head for a fuel injection device
FI932107A FI104751B (en) 1992-05-11 1993-05-10 Nozzle head for the injection nozzle in a fuel injection device for an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92810347A EP0569655B1 (en) 1992-05-11 1992-05-11 Injection nozzle for a fuel injection device

Publications (2)

Publication Number Publication Date
EP0569655A1 EP0569655A1 (en) 1993-11-18
EP0569655B1 true EP0569655B1 (en) 1996-01-24

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ID=8211920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810347A Expired - Lifetime EP0569655B1 (en) 1992-05-11 1992-05-11 Injection nozzle for a fuel injection device

Country Status (7)

Country Link
EP (1) EP0569655B1 (en)
JP (1) JPH0719147A (en)
KR (1) KR100373786B1 (en)
CN (1) CN1035210C (en)
DE (1) DE59205180D1 (en)
DK (1) DK0569655T3 (en)
FI (1) FI104751B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411228C2 (en) * 1994-03-31 1996-02-01 Krupp Vdm Gmbh High-temperature resistant nickel-based alloy and use of the same
DE59814428D1 (en) * 1998-05-29 2010-03-04 Waertsilae Nsd Schweiz Ag fuel injector
DK0982493T3 (en) * 1998-08-27 2003-10-27 Waertsilae Nsd Schweiz Ag Method of Preparing a Fuel Injection Nozzle and Fuel Injection Nozzle
JP2976973B1 (en) * 1998-09-29 1999-11-10 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine
DE19963389A1 (en) 1999-12-28 2001-07-05 Bosch Gmbh Robert Method of manufacturing a valve piece for a fuel injector
DE50309291D1 (en) * 2002-04-11 2008-04-17 Waertsilae Nsd Schweiz Ag Nozzle head for a fuel injector
US20070131803A1 (en) * 2005-12-13 2007-06-14 Phadke Milind V Fuel injector having integrated valve seat guide
JP5518861B2 (en) 2009-06-30 2014-06-11 日本ピストンリング株式会社 Internal combustion engine fuel injection nozzle, nozzle material and manufacturing method thereof
DK2365206T3 (en) * 2010-03-05 2014-05-19 Wärtsilä Switzerland Ltd Nozzle for a fuel injection device for internal combustion engines and method for making a nozzle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133944A1 (en) * 1981-08-24 1983-03-03 Gebrüder Sulzer AG, 8401 Winterthur Fuel injection nozzle, especially for diesel engines
JPS6299433A (en) * 1985-10-26 1987-05-08 Natl Res Inst For Metals Gamma'-phase precipitation strengthening heat resistant nickel alloy containing dispersed yttria particle
CH671074A5 (en) * 1986-11-25 1989-07-31 Sulzer Ag

Also Published As

Publication number Publication date
FI932107A0 (en) 1993-05-10
FI932107A (en) 1993-11-12
CN1080360A (en) 1994-01-05
DE59205180D1 (en) 1996-03-07
KR100373786B1 (en) 2003-06-18
CN1035210C (en) 1997-06-18
DK0569655T3 (en) 1996-02-19
KR930023592A (en) 1993-12-21
JPH0719147A (en) 1995-01-20
FI104751B (en) 2000-03-31
EP0569655A1 (en) 1993-11-18

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