RU2005114359A - METHOD FOR MANUFACTURING INJECTOR FOR FUEL VALVE IN DIESEL ENGINE AND INJECTOR - Google Patents

METHOD FOR MANUFACTURING INJECTOR FOR FUEL VALVE IN DIESEL ENGINE AND INJECTOR Download PDF

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Publication number
RU2005114359A
RU2005114359A RU2005114359/02A RU2005114359A RU2005114359A RU 2005114359 A RU2005114359 A RU 2005114359A RU 2005114359/02 A RU2005114359/02 A RU 2005114359/02A RU 2005114359 A RU2005114359 A RU 2005114359A RU 2005114359 A RU2005114359 A RU 2005114359A
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Russia
Prior art keywords
alloy
nozzle
isostatic pressing
fuel valve
corrosion
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RU2005114359/02A
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Russian (ru)
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RU2313422C2 (en
Inventor
Харро Андреас ХЕГ (DK)
Харро Андреас ХЕГ
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Ман Б Энд В Диесель А/С (Dk)
Ман Б Энд В Диесель А/С
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Publication of RU2313422C2 publication Critical patent/RU2313422C2/en

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/02—Fuel-injection apparatus having means for reducing wear
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9046—Multi-layered 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals

Abstract

In a mould (13) a corrosion-resistant first alloy (10) is arranged at least in an outer area which is to constitute the outer surface of a nozzle around the nozzle bores (4). A second alloy (11) is used in another area of the nozzle. The materials in the mould are treated by isostatic pressing into a consolidated material. The boundary area between the two alloys (10, 11) is free of cracks.

Claims (21)

1. Способ изготовления форсунки для топливного клапана в дизельном двигателе, в частности в двухтактном крейцкопфном двигателе, в котором первый материал коррозионно-устойчивого первого сплава размещают в пресс-форме по меньшей мере во внешней области, которая должна составлять внешнюю поверхность форсунки вокруг рассверленных отверстий форсунки, отличающийся тем, что второй материал второго сплава также размещают в пресс-форме во внутренней области, и материалы, размещенные таким образом, обрабатывают с помощью изостатического прессования в уплотненную заготовку форсунки, не содержащую микротрещин в граничной области между первым сплавом и вторым сплавом.1. A method of manufacturing a nozzle for a fuel valve in a diesel engine, in particular in a two-stroke crosshead engine, in which the first material of the corrosion-resistant first alloy is placed in the mold at least in the outer region, which should be the outer surface of the nozzle around the drilled nozzle openings characterized in that the second material of the second alloy is also placed in the mold in the inner region, and the materials placed in this way are treated with an isostatic press injection into a compacted nozzle blank that does not contain microcracks in the boundary region between the first alloy and the second alloy. 2. Способ по п.1, отличающийся тем, что второй материал второго сплава в готовой форсунке имеет более высокую усталостную прочность, чем коррозионно-устойчивый первый сплав.2. The method according to claim 1, characterized in that the second material of the second alloy in the finished nozzle has a higher fatigue strength than the corrosion-resistant first alloy. 3. Способ по п.1, отличающийся тем, что по меньшей мере когда коррозионно-устойчивый сплав содержит больше, чем 0,6% Al, перед изостатическим прессованием между первым материалом и вторым материалом используют ограничивающий прохождение кислорода диффузионный барьер.3. The method according to claim 1, characterized in that at least when the corrosion-resistant alloy contains more than 0.6% Al, an oxygen-limiting diffusion barrier is used between the first material and the second material before isostatic pressing. 4. Способ по п.3, отличающийся тем, что диффузионный барьер представляет собой никель, медь или никелевый сплав.4. The method according to claim 3, characterized in that the diffusion barrier is a nickel, copper or nickel alloy. 5. Способ по п.3, отличающийся тем, что диффузионный барьер помещают на внутреннюю поверхность заранее изготовленного элемента из первого материала или на внешнюю поверхность заранее изготовленного элемента из второго материала.5. The method according to claim 3, characterized in that the diffusion barrier is placed on the inner surface of the prefabricated element of the first material or on the outer surface of the prefabricated element of the second material. 6. Способ по п.1, отличающийся тем, что изостатическое прессование представляет собой обработку ГИП (горячее изостатическое прессование).6. The method according to claim 1, characterized in that the isostatic pressing is an ISU treatment (hot isostatic pressing). 7. Способ по любому из пп.1-6, отличающийся тем, что заранее изготовленный элемент из первого материала заполняют исходным материалом в виде частиц из второго сплава, предпочтительно посредством высокоскоростного обжатия порошка.7. The method according to any one of claims 1 to 6, characterized in that the prefabricated element of the first material is filled with the starting material in the form of particles from the second alloy, preferably by high-speed compression of the powder. 8. Способ по п.7, отличающийся тем, что заранее изготовленный элемент из первого сплава отливают или изготавливают методом порошковой металлургии в виде чашеобразной или трубчатой стенки, которая образует часть пресс-формы, используемой в изостатическом прессовании.8. The method according to claim 7, characterized in that the prefabricated element of the first alloy is cast or made by powder metallurgy in the form of a cup-shaped or tubular wall, which forms part of the mold used in isostatic pressing. 9. Способ по п.7, отличающийся тем, что предварительно сформированный элемент из первого материала изготавливают из исходного материала в виде частиц, например, посредством высокоскоростного обжатия порошка, обработки ХИП (холодное изостатическое прессование), обработки ГИП (горячее изостатическое прессование), возможно, с последующей обработкой или экструзией, или посредством агломерации с последующим прессованием.9. The method according to claim 7, characterized in that the pre-formed element from the first material is made from source material in the form of particles, for example, by high-speed powder compression, HIP processing (cold isostatic pressing), HIP processing (hot isostatic pressing), possibly , followed by processing or extrusion, or by agglomeration, followed by pressing. 10. Способ по любому из пп.1-6, отличающийся тем, что предварительно сформированный основной элемент из второго материала помещают в пресс-форму, в которой перед выполнением изостатического прессования размещают исходный материал в виде частиц первого сплава.10. The method according to any one of claims 1 to 6, characterized in that the preformed main element of the second material is placed in a mold in which, before performing isostatic pressing, the starting material is placed in the form of particles of the first alloy. 11. Способ по п.10, отличающийся тем, что предварительно сформированный элемент из второго материала изготавливают из исходного материала в виде частиц, например, посредством высокоскоростного обжатия порошка, обработки ХИП (холодное изостатическое прессование), обработки ГИП (горячее изостатическое прессование), возможно, с последующей обработкой или экструзией, или посредством агломерации с последующим прессованием.11. The method according to claim 10, characterized in that the pre-formed element of the second material is made from the starting material in the form of particles, for example, by high-speed powder compression, HIP processing (cold isostatic pressing), HIP processing (hot isostatic pressing), possibly , followed by processing or extrusion, or by agglomeration, followed by pressing. 12. Форсунка для топливного клапана в дизельном двигателе, в частности в двухтактном крейцкопфном двигателе, имеющая центральный, продольный канал, сообщающийся с множеством рассверленных отверстий форсунки, открывающихся на внешней поверхности форсунки, причем форсунка изготовлена из коррозионно-устойчивого первого сплава по меньшей мере во внешней области вокруг рассверленных отверстий форсунки и изготовлена из второго сплава в области, отличающейся от упомянутой внешней области, отличающаяся тем, что материал в граничной области между первым сплавом и вторым сплавом имеет структуру, не содержащую микротрещин.12. A nozzle for a fuel valve in a diesel engine, in particular a two-stroke crosshead engine, having a central, longitudinal channel in communication with a plurality of drilled nozzle openings opening on the outer surface of the nozzle, the nozzle being made of a corrosion-resistant first alloy at least in the outer the area around the drilled holes of the nozzle and is made of a second alloy in a region different from said outer region, characterized in that the material in the boundary region m Between the first alloy and the second alloy has a structure that does not contain microcracks. 13. Форсунка по п.12, отличающаяся тем, что второй сплав имеет более высокую усталостную прочность, чем коррозионно-устойчивый первый сплав.13. The nozzle according to item 12, wherein the second alloy has a higher fatigue strength than the corrosion-resistant first alloy. 14. Форсунка по п.12, отличающаяся тем, что в форсунке между первым сплавом и вторым сплавом обеспечен ограничивающий прохождение кислорода диффузионный барьер.14. The nozzle according to claim 12, characterized in that a diffusion barrier restricting the passage of oxygen is provided in the nozzle between the first alloy and the second alloy. 15. Форсунка по п.12, отличающаяся тем, что второй сплав изготовлен методом порошковой металлургии.15. The nozzle according to item 12, wherein the second alloy is made by powder metallurgy. 16. Форсунка по любому из пп.12-15, отличающаяся тем, что первый сплав является сплавом на основе никеля, а второй сплав представляет собой сплав на основе железа.16. The nozzle according to any one of paragraphs.12-15, characterized in that the first alloy is an alloy based on nickel, and the second alloy is an alloy based on iron. 17. Форсунка по любому из пп.12-15, отличающаяся тем, что форсунка представляет собой отдельную деталь, размещенную в топливном клапане в продолжении направляющей стержня, содержащей седло всасывающего клапана топливного клапана.17. The nozzle according to any one of paragraphs.12-15, characterized in that the nozzle is a separate part located in the fuel valve in the continuation of the guide rod containing the seat of the suction valve of the fuel valve. 18. Форсунка по п.17, отличающаяся тем, что второй сплав составляет более 70% от совокупной массы форсунки.18. The nozzle according to claim 17, characterized in that the second alloy is more than 70% of the total mass of the nozzle. 19. Форсунка по любому из пп.12-15, отличающаяся тем, что усталостная прочность σа второго сплава составляет по меньшей мере ±750 МПа.19. The nozzle according to any one of paragraphs.12-15, characterized in that the fatigue strength σ a of the second alloy is at least ± 750 MPa. 20. Форсунка по любому из пп.12-15, отличающаяся тем, что в форсунке обеспечен изоляционный керамический материал, покрытый первым сплавом.20. The nozzle according to any one of paragraphs.12-15, characterized in that the nozzle is provided with an insulating ceramic material coated with the first alloy. 21. Форсунка по п.16, отличающаяся тем, что форсунка представляет собой отдельную деталь, размещенную в топливном клапане в продолжении направляющей стержня, содержащей седло всасывающего клапана топливного клапана.21. The nozzle according to clause 16, wherein the nozzle is a separate part located in the fuel valve in the continuation of the guide rod containing the seat of the suction valve of the fuel valve.
RU2005114359/02A 2002-10-07 2003-10-03 Method of manufacture of the spray jet for the diesel engine fuel valve RU2313422C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200201497 2002-10-07
DKPA200201497 2002-10-07

Publications (2)

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RU2005114359A true RU2005114359A (en) 2006-02-10
RU2313422C2 RU2313422C2 (en) 2007-12-27

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EP (1) EP1549449B1 (en)
JP (2) JP4529159B2 (en)
KR (1) KR101073494B1 (en)
CN (1) CN100579690C (en)
AT (1) ATE416056T1 (en)
AU (1) AU2003269842A1 (en)
DE (1) DE60325077D1 (en)
ES (1) ES2318153T3 (en)
NO (1) NO337143B1 (en)
RU (1) RU2313422C2 (en)
WO (1) WO2004030850A1 (en)

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