EP1353061A2 - Werkstoff für einen Düsenkopf und Düsenkopf aus einem solchen Werkstoff - Google Patents
Werkstoff für einen Düsenkopf und Düsenkopf aus einem solchen Werkstoff Download PDFInfo
- Publication number
- EP1353061A2 EP1353061A2 EP03405171A EP03405171A EP1353061A2 EP 1353061 A2 EP1353061 A2 EP 1353061A2 EP 03405171 A EP03405171 A EP 03405171A EP 03405171 A EP03405171 A EP 03405171A EP 1353061 A2 EP1353061 A2 EP 1353061A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- nozzle head
- chromium
- large diesel
- internal combustion
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 42
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000011651 chromium Substances 0.000 claims abstract description 22
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 6
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 5
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 4
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001513 hot isostatic pressing Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- 230000003628 erosive effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001347 Stellite Inorganic materials 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- -1 For example Chemical compound 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical group 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
-
- 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
- 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
- F02M61/16—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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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 material for a nozzle head of a Fuel injector, a nozzle head of such a material and a fuel injector of an internal combustion engine, in particular a Large diesel engine.
- the Fuel - typically this is a heavy fuel oil or another Diesel fuel - by means of fuel injectors in the combustion chamber brought in.
- These injectors usually include a partially in the combustion chamber projecting nozzle head, which also acts as an atomizer referred to as.
- the nozzle head is a Verschleissteil that a high subject to thermal, mechanical and chemical stress collective.
- damage to the nozzle head for example Material removal due to corrosion, erosion and / or abrasion occur, or cracks that can lead to breakup.
- the mechanical loads are also based on the high injection pressure, which can be over a thousand bar. Inside the nozzle head can Material losses due to cavitation and / or erosion occur.
- the thermal Loads are based on the high temperatures in the combustion chamber and the enormous temperature changes between the combustion temperature and the temperature of the freshly supplied scavenging air. Also inside the Nozzle head, through which the fuel is introduced, leads the intermittent injection to shock-like temperature changes.
- the chemical load of the nozzle head is mainly in the High-temperature or hot corrosion justified.
- the hot corrosion which in primarily by vanadium, sodium and vanadium contained in the fuel Sulfur causes favors material degradation and erosion. In particular, the corrosion is the reason that a nozzle head already after a few thousand hours of operation can be unusable and replaced must become.
- nozzle heads in large diesel engines are today usually steels or alloys based on nickel or cobalt, For example, Stellite 6, used.
- Stellite 6 can be sufficient today for nozzle heads in large diesel engines Component life in terms of erosion, abrasion and cavitation (Especially in the holes of the nozzle head) reach.
- the development can be expected at future, yet more powerful large diesel engines also the load requirements especially for the nozzle heads will continue to increase.
- a chromium-based alloy which has a nickel content of 30% to 48% and also 1.5% - 15% tungsten and / or 1% -6.5% molybdenum, the sum of the tungsten and the molybdenum content does not exceed 15%.
- This alloy is called Coating material (hard facing) disclosed in particular for the Coating of valves in automotive engines is suitable.
- the tungsten mouth / or Molybdenum content is essential to the To give coating material the necessary strength and hardness.
- the object of the invention is to provide a material and a product thereof To propose nozzle head, the high load collective in the Large diesel engine has grown better and in particular a high Has hot corrosion resistance.
- the problem-solving objects of the invention are characterized by the Characteristics of the independent claim of the respective category characterized.
- a material for a nozzle head of a Fuel injection nozzle of an internal combustion engine in particular a Grossdieselmotors proposed which material is a chromium-based alloy that is apart from commonly occurring Impurities in weight percent 0% -50% nickel (Ni), 0% -5% Contains carbon (C), 0% -5% silicon (Si) and at least 50% chromium (Cr).
- the inventive nozzle head for a fuel injector a Internal combustion engine is made of a made of such material.
- An inventive chromium-based alloy proves to be particularly Resistant to corrosion, especially hot corrosion, erosion, Abrasion, material loss and cavitation.
- a nozzle head made of a made of such chromium-based alloy can the high Resistant collective in the large diesel engine very well withstand. His too mechanical strength, its resistance to cracking and its permanent resistance to pulsation loads are sufficient Conditions. It has been found that with an inventive Nozzle head in a large diesel engine operating from 8000 to 15,000 operating hours is possible.
- the high chromium content of the inventive material is of particular importance for resistance to intensive Attacks by high temperature corrosion, as typically in the Combustion chamber of a heavy diesel engine driven by heavy oil occur.
- Chrome forms dense and dense on the surface of the nozzle heads firmly adhering chromium oxide layers which give the material a chemical Give permanence. Due to the high chromium content, can Chromium also quickly from the inside of the nozzle head to the surface of the Düsenkopfs diffuse and there caused injuries in the Heal oxide layer.
- the material contains at least one reactive element the group consisting of the elements lanthanum (La), cerium (Ce), yttrium (Y), Hafnium (Hf), Scandium (Sc) and the rare earths, where the Content of each reactive element is at most 5%.
- the reactive element the group consisting of the elements lanthanum (La), cerium (Ce), yttrium (Y), Hafnium (Hf), Scandium (Sc) and the rare earths, where the Content of each reactive element is at most 5%.
- the function of the reactive elements in the material is to increase the stability of the material Chromium oxide layer in itself and its adhesion to the nozzle head in positive way to influence. Even small amounts of such reactive Elements can be the oxidation behavior and in particular the adhesion the oxide layer especially in thermal cycling clearly improve.
- the material is less brittle and can be better processed or edited.
- the Material according to the invention apart from commonly occurring Percent impurities of at least 45% nickel (Ni), 50% -55% Chromium (Cr), 0% -5% carbon (C), 0% -5% silicon (Si) and 0% -5% one or more reactive elements. It has been proven that with make such a composition of the alloy nozzle heads let the high load collective in the large diesel engine in excellent way to resist and in particular a high Have hot corrosion resistance.
- each reactive element is at most 1%, in particular at most 0.2%.
- Content of carbon (C) is preferably at most 1%, in particular at most 0.05% and the content of silicon (Si) at most 1%, in particular at most 0.5%.
- the presence of one of the reactive elements in the inventive material usually, the presence of one of the reactive elements in the inventive material. However, depending on the application, it may also be advantageous, the material with several of the reactive elements manufacture.
- the material is preferably made of appropriate Metal powder with a main particle size of 10 to 200 Micrometers, in particular 40 to 150 micrometers. By that is meant that the majority of the powder grains have a size of 10 to 200, especially 40 to 150 micrometers.
- the nozzle head has a Longitudinal bore and at least one outgoing from the longitudinal bore Nozzle hole for introducing fuel into a combustion chamber, wherein the transition from the longitudinal bore to the nozzle hole is rounded, preferably electrochemically (eluted).
- the Transition areas become sharp edges in the flow path of the Fuel avoided, which optimizes the flow conditions become.
- the nozzle head according to the invention is particularly suitable for a Fuel injector for an internal combustion engine, especially one Diesel engine.
- a Fuel injector for an internal combustion engine especially one Diesel engine.
- Particularly suitable is the nozzle head according to the invention or the fuel injection nozzle for large diesel engines provided therewith, For example, longitudinally-flushed two-stroke large diesel engines with Cross-head drive or four-stroke large diesel engines.
- Fig. 1 shows a sectional view of a fuel injector of a Large diesel engine, especially a two-stroke large diesel engine with Longitudinal rinse, which is designated overall by the reference numeral 1.
- the Fuel injector 1 includes an embodiment of a according to the invention nozzle head 2, which is attached to a nozzle body 3 is.
- the nozzle head 2 has a longitudinal bore 20, as well as several, for example, five, nozzle holes 21, of which shown in Fig. 1, only two are.
- the nozzle holes 21 are each going from the longitudinal bore 20 and extend from there in a radial, slightly downwardly inclined direction.
- the fuel usually a heavy oil or another Diesel fuel, in a conventional manner intermittently to the Working cycle of the large diesel engine adapted under high pressure by the Longitudinal bore 20 and the nozzle holes 21 in the not shown Combustion chamber injected.
- the nozzle head 2 consists of a Material that is a chromium-based alloy, which is a reactive element includes.
- a reactive element is a rare earth or a similar metal.
- Particularly suitable are lanthanum (La), cerium (Ce), yttrium (Y), hafnium (Hf), scandium (Sc).
- the material has a high nickel content of 45% to 50% by weight to one to ensure better workability ..
- the nickel content of the alloy over 45% and as a reactive element is lanthanum with a weight fraction of contain less than 0.1%.
- Apart from usual pollution is the Rest chrome.
- each reactive element is at most 1%, specifically not more than 0.2% by weight.
- the inventive nozzle head 2 is preferably by means of a hot isostatic pressing method (HIP: hot isostatic pressing).
- HIP hot isostatic pressing
- chromium, nickel and Lanthanum as a reactive element - in a conventional manner to powder atomized.
- the grain size of the powder is in this embodiment mostly between 45 and 150 microns.
- hot isostatic Pressing becomes a blank or semi-finished product from the powder, z.
- As a rod manufactured. From the blank is by mechanical, Usually machining methods of the nozzle head 2 made.
- the longitudinal bore 20 and the nozzle holes 21 are drilled.
- the transition areas (edges) between the Longitudinal bore 20 and the nozzle holes 21 rounded. These edges are preferably electrolytically rounded (eluted).
- the process parameters for hot isostatic pressing can be used for the be optimized for each application.
- the material according to the invention or the nozzle head 2 produced therefrom has excellent resistance to hot corrosion and the associated material loss. He is also the other one Requirements of thermal, mechanical and chemical Load collective in a large diesel engine in a very good way grown. With such nozzle heads 2 can be an operating time of Achieve 8,000 to 15,000 hours. Even after such a long service life the nozzle heads are still in good condition.
- the nozzle head according to the invention is therefore also suitable for future use Generations of large diesel engines that are even more powerful and even higher demands on the load capacity of the nozzle heads.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
- Powder Metallurgy (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
- Fig. 1:
- eine Schnittdarstellung einer Brennstoffeinspritzdüse mit einem Ausführungsbeispiel eines erfindungsgemässen Düsenkopfs.
Claims (10)
- Werkstoff für einen Düsenkopf (2) einer Brennstoffeinspritzdüse (1) einer Brennkraftmaschine, insbesondere eines Grossdieselmotors, dadurch gekennzeichnet, dass der Werkstoff eine Chrom-Basis-Legierung ist, die abgesehen von üblicherweise auftretenden Verunreinigungen in Gewichtsprozent 0%-50% Nickel (Ni), 0%-5% Kohlenstoff (C), 0%-5% Silizium (Si) und mindestens 50% Chrom (Cr) enthält.
- Werkstoff nach Anspruch 1, welcher mindestens ein reaktives Element aus der Gruppe enthält, die aus den Elementen Lanthan (La), Cer (Ce), Yttrium (Y), Hafnium (Hf), Scandium (Sc) und den Seltenen Erden besteht, wobei der Gehalt an jedem reaktiven Element höchstens 5% beträgt.
- Werkstoff nach Anspruch 1 oder 2, welcher abgesehen von üblicherweise auftretenden Verunreinigungen in Gewichtsprozent aus mindestens 45% Nickel (Ni), 50%-55% Chrom (Cr), 0%-5% Kohlenstoff (C), 0%-5% Silizium (Si) und 0%-5% eines oder mehrerer reaktiver Elemente besteht.
- Werkstoff nach einem der vorangehenden Ansprüche, wobei der Gehalt an jedem reaktiven Element höchstens 1%, insbesondere höchstens 0,2% beträgt, der Gehalt an Kohlenstoff (C) höchstens 1%, insbesondere höchstens 0.05% und der Gehalt an Silizium (Si) höchstens 1%, insbesondere höchstens 0.5%.
- Werkstoff nach einem der vorangehenden Ansprüche hergestellt durch ein heissisostatisches Pressverfahren.
- Werkstoff nach einem der vorangehenden Ansprüche hergestellt aus entsprechendem Metallpulver mit einer hauptsächlichen Korngrösse von 10 bis 200 Mikrometern, insbesondere 40 bis 150 Mikrometern.
- Düsenkopf für eine Brennstoffeinspritzdüse einer Brennkraftmaschine, insbesondere eines Grossdieselmotors, hergestellt aus einem Werkstoff gemäss einem der Ansprüche 1-6.
- Düsenkopf nach Anspruch 7, mit einer Längsbohrung (20) und mindestens einem von der Längsbohrung (20) ausgehendem Düsenloch zum Einbringen von Brennstoff in einen Verbrennungsraum, wobei der Übergang von der Längsbohrung (20) zum Düsenloch (21) verrundet ist, vorzugsweise elektro-chemisch.
- Brennstoffeinspritzdüse für eine Brennkraftmaschine mit einem Düsenkopf gemäss Anspruch 6 oder 7.
- Brennkraftmaschine, insbesondere Grossdieselmotor mit einer Brennstoffeinspritzdüse gemäss Anspruch 9
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03405171A EP1353061B1 (de) | 2002-04-11 | 2003-03-12 | Düsenkopf für eine Brennstoffeinspritzdüse |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02405289 | 2002-04-11 | ||
EP02405289 | 2002-04-11 | ||
EP03405171A EP1353061B1 (de) | 2002-04-11 | 2003-03-12 | Düsenkopf für eine Brennstoffeinspritzdüse |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1353061A2 true EP1353061A2 (de) | 2003-10-15 |
EP1353061A3 EP1353061A3 (de) | 2006-05-31 |
EP1353061B1 EP1353061B1 (de) | 2008-03-05 |
Family
ID=28686034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405171A Expired - Lifetime EP1353061B1 (de) | 2002-04-11 | 2003-03-12 | Düsenkopf für eine Brennstoffeinspritzdüse |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1353061B1 (de) |
JP (1) | JP4870323B2 (de) |
KR (1) | KR100959597B1 (de) |
CN (1) | CN100436625C (de) |
AT (1) | ATE388322T1 (de) |
DE (1) | DE50309291D1 (de) |
DK (1) | DK1353061T3 (de) |
PL (1) | PL199117B1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2000550A1 (de) | 2007-06-08 | 2008-12-10 | Wärtsilä Schweiz AG | Werkstoff auf Basis einer CrNi-Legierung, Halbzeug, Komponente für einen Verbrennungsmotor, sowie ein Verfahren zur Herstellung des Werkstoffs und des Halbzeugs |
EP2228462A1 (de) | 2009-03-09 | 2010-09-15 | Wärtsilä Schweiz AG | Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks, sowie Werkstück mit einer beschichteten Sitzfläche |
AT511880A1 (de) * | 2011-09-06 | 2013-03-15 | Bosch Gmbh Robert | Verschleissoptimierte herstellung von konischen spritzlöchern |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1566539B1 (de) * | 2004-02-23 | 2009-01-14 | Wärtsilä Schweiz AG | Brennstoffeinspritzdüse |
CN101694199B (zh) * | 2009-08-20 | 2011-05-11 | 余姚市舒春机械有限公司 | 低速柴油机喷嘴 |
DE102009046437B4 (de) * | 2009-11-05 | 2018-04-19 | Man Diesel & Turbo Se | Verfahren zum Bearbeiten einer Einspritzdüse |
CN115324799B (zh) * | 2022-06-29 | 2023-06-06 | 中汽研汽车检验中心(天津)有限公司 | 一种用于表征汽油机喷嘴积碳的方法和装置 |
Citations (1)
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EP0529208A1 (de) | 1991-08-27 | 1993-03-03 | FUKUDA METAL FOIL & POWDER CO., LTD | Aufschweisslegierungen auf Chrom-Basis |
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JPH0676638B2 (ja) * | 1986-07-01 | 1994-09-28 | 三菱マテリアル株式会社 | 耐食性および耐熱性のすぐれた高強度Ni−Cr系合金 |
JPS6331301A (ja) | 1986-07-25 | 1988-02-10 | Sharp Corp | 帯域通過フイルタ |
JPH0639095Y2 (ja) * | 1988-03-09 | 1994-10-12 | 住友重機械工業株式会社 | ディーゼル機関用燃料噴射ノズル |
EP0452079A1 (de) * | 1990-04-12 | 1991-10-16 | Tosoh Corporation | Chrom-Nickel-Material mit hohem Gehalt an Chrom sowie Verfahren zu seiner Herstellung |
JPH04358054A (ja) * | 1991-06-03 | 1992-12-11 | Kobe Steel Ltd | 耐エロージョン性に優れた溶射用粉末材料および表面 被覆部品 |
DE69218458T2 (de) * | 1991-12-03 | 1997-10-09 | Advanced Composite Materials Corp., Greer, S.C. | Drucklose sinterung von mit whiskern verstärktem aluminiumoxydverbundwerkstoff |
JPH05222481A (ja) * | 1992-02-07 | 1993-08-31 | Tosoh Corp | 新規高クロムニッケルメカニカル合金およびその製造方法 |
DK0569655T3 (da) * | 1992-05-11 | 1996-02-19 | New Sulzer Diesel Ag | Dysehoved til en brændstofindsprøjtningsindretning |
KR100324398B1 (ko) * | 1994-03-10 | 2002-10-18 | 엠에이엔 비앤드떠블유 디젤 에이/에스 | 연료밸브용노즐및그제조방법 |
EP0692625B1 (de) * | 1994-07-15 | 1999-12-29 | Wärtsilä NSD Schweiz AG | Düsenkopf für eine Brennstoffeinspritzdüse |
US6106643A (en) * | 1997-10-14 | 2000-08-22 | Inco Alloys International, Inc. | Hot working high-chromium alloy |
JPH11285890A (ja) * | 1998-04-02 | 1999-10-19 | Kubota Corp | 高C・高Cr−Ni系溶接棒 |
JPH11293376A (ja) | 1998-04-14 | 1999-10-26 | Sumitomo Metal Mining Co Ltd | 加熱炉炉床部材用Cr基合金 |
DE59907093D1 (de) * | 1998-08-27 | 2003-10-30 | Waertsilae Nsd Schweiz Ag | Verfahren zum Herstellen einer Brennstoffeinspritzdüse und Brennstoffeinspritzdüse |
-
2003
- 2003-03-12 DE DE50309291T patent/DE50309291D1/de not_active Expired - Lifetime
- 2003-03-12 EP EP03405171A patent/EP1353061B1/de not_active Expired - Lifetime
- 2003-03-12 AT AT03405171T patent/ATE388322T1/de not_active IP Right Cessation
- 2003-03-12 DK DK03405171T patent/DK1353061T3/da active
- 2003-03-13 KR KR1020030015814A patent/KR100959597B1/ko not_active IP Right Cessation
- 2003-04-09 PL PL359617A patent/PL199117B1/pl not_active IP Right Cessation
- 2003-04-10 JP JP2003106188A patent/JP4870323B2/ja not_active Expired - Fee Related
- 2003-04-10 CN CNB031105688A patent/CN100436625C/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0529208A1 (de) | 1991-08-27 | 1993-03-03 | FUKUDA METAL FOIL & POWDER CO., LTD | Aufschweisslegierungen auf Chrom-Basis |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2000550A1 (de) | 2007-06-08 | 2008-12-10 | Wärtsilä Schweiz AG | Werkstoff auf Basis einer CrNi-Legierung, Halbzeug, Komponente für einen Verbrennungsmotor, sowie ein Verfahren zur Herstellung des Werkstoffs und des Halbzeugs |
KR101534536B1 (ko) * | 2007-06-08 | 2015-07-07 | 빈터투르 가스 앤 디젤 아게 | CrNi 합금을 기재로 하는 물질, 준완성품, 연소 엔진용컴포넌트, 및 상기 물질과 상기 준완성품의 제조 방법 |
EP2228462A1 (de) | 2009-03-09 | 2010-09-15 | Wärtsilä Schweiz AG | Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks, sowie Werkstück mit einer beschichteten Sitzfläche |
AT511880A1 (de) * | 2011-09-06 | 2013-03-15 | Bosch Gmbh Robert | Verschleissoptimierte herstellung von konischen spritzlöchern |
AT511880B1 (de) * | 2011-09-06 | 2013-12-15 | Bosch Gmbh Robert | Verschleissoptimierte herstellung von konischen spritzlöchern |
Also Published As
Publication number | Publication date |
---|---|
ATE388322T1 (de) | 2008-03-15 |
DE50309291D1 (de) | 2008-04-17 |
JP4870323B2 (ja) | 2012-02-08 |
DK1353061T3 (da) | 2008-06-23 |
PL359617A1 (en) | 2003-10-20 |
CN100436625C (zh) | 2008-11-26 |
EP1353061A3 (de) | 2006-05-31 |
KR100959597B1 (ko) | 2010-05-27 |
CN1450186A (zh) | 2003-10-22 |
EP1353061B1 (de) | 2008-03-05 |
KR20030081020A (ko) | 2003-10-17 |
PL199117B1 (pl) | 2008-08-29 |
JP2003301233A (ja) | 2003-10-24 |
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