EP1405930A1 - Verwendung einer Stahllegierung für Kraftstoffverteiler - Google Patents
Verwendung einer Stahllegierung für Kraftstoffverteiler Download PDFInfo
- Publication number
- EP1405930A1 EP1405930A1 EP03020836A EP03020836A EP1405930A1 EP 1405930 A1 EP1405930 A1 EP 1405930A1 EP 03020836 A EP03020836 A EP 03020836A EP 03020836 A EP03020836 A EP 03020836A EP 1405930 A1 EP1405930 A1 EP 1405930A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- steel alloy
- fuel
- strength
- maximum
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 26
- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 15
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 239000012535 impurity Substances 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000005304 joining Methods 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur 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
- 238000003466 welding Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
Definitions
- the invention relates to the use of a steel alloy for fuel distributors.
- the steel is known, for example from DE 1483331 A1.
- Affected by the Fuel distributors are used to distribute petrol, methanol and diesel fuels as well as fuel mixtures. With above distributors currently need pressures up to 1600 bar for diesel engines and pressures up to petrol engines 450 bar can be realized. In addition, these fuel rail must have dynamic pressures resist a comparatively high operational stability with a low probability of failure have and resistant to the media flowing through them be what in particular resistance to long-term corrosion concerns.
- These fuel distributors are currently both in cylindrical form (common rail) as well as spherical shape (common ball) and are made of forged Steel, forged aluminum, die-cast aluminum, stainless steel or made of high-strength steel.
- Aluminum as a material for fuel distributors is only partially resistant and tends to corrode.
- Forged steel is up to up to aluminum Factor 3 heavier.
- Stainless steel or high-strength steel have in relation to cast iron or Forging solutions a more homogeneous starting material without pores and inclusions stainless steel, however, means high material costs in comparison low basic strength. In the high-strength steels used leads again The heat input that the material produces during the manufacture of the fuel rail for example during a joining operation, to a reduction or a total loss of firmness.
- the invention is therefore based on the object of producing a material for To show fuel distributors that meet the specified component requirements is guaranteed and cost-effective and optimized production.
- a steel alloy with a tensile strength Rm of> 850 N / mm 2 , a yield strength Rp0.2 of> 700 N / mm 2 and an elongation A 5 of> 15% as well as the alloy components (expressed in weight percent) become 0 , 09 to 0.13% carbon, 0.15 to 0.30% silicon, 1.10-1.60% manganese, maximum 0.015% phosphorus, maximum 0.011% sulfur, 1.00-1.60% chromium, 0 , 30-0.60% molybdenum, 0.02-0.05% aluminum and 0.12-0.25% vanadium, remainder has contamination due to melting, used as a material for fuel rail.
- the steel alloy is heated above AC 3 temperature, cooled in air and then tempered at 550 to 650 ° C.
- a steel alloy which, in the air-hard state, has a tensile strength Rm of> 950 N / mm 2 , a yield strength Rp0.2 of> 700 N / mm 2 and an elongation A 5 of> 14%, as well as the alloy components (expressed in weight percent ) 0.09 to 0.13% carbon, 0.15 to 0.30% silicon, 1.10-1.60% manganese, maximum 0.015% phosphorus, maximum 0.011% sulfur, 1.00-1.60% chromium , 0.30-0.60% molybdenum, 0.02-0.05% aluminum and 0.12-0.25% vanadium, remainder has contamination due to melting, to be used as a fuel distributor material.
- the steel alloy to be used according to the invention is an air-hardenable, weldable Quenched and tempered steel.
- the semi-finished solid rod or tube makes it possible to pass through a fuel rail machining on machines to manufacture and required connecting pieces add, for example by welding.
- the homogeneous is also suitable Material better for mechanical processing than cast or forged parts.
- at a fuel rail made of cast steel or designed as a forged part is, mechanical processing of the interior of the Pressure accumulator and the one-piece molded connection piece made become.
- these measures require with cast or forged bodies, an additional additional manufacturing effort.
- Fuel distributors are made of cast iron, particularly with regard to tool costs or as forged parts, only economically justified for large series. Consequently, the use of the proposed steel alloy according to the invention results in that a corresponding fuel rail lighter in weight, manufacturing technology is easier and overall cheaper to produce than comparable Fuel distributor made of cast or forged semi-finished products.
- the steel alloy proposed for use according to the invention achieves the required operational strength better than stainless steel.
- the high fatigue strength values of the material and the good cold toughness stand out from others Steel grades and guarantee even with continuous use of 10 million Vibrations and working temperatures of up to - 40 ° C, for example at a cold start of the engine in very cold areas, the required tightness and Operational safety of the fuel rail.
- Steels conventionally used in the manufacture of fuel distributors can only be quenched after heating to above AC 3 temperature, be it with oil or water. This hardening is difficult to carry out during a joining operation. As a result, the structural transformation with loss of strength caused by the heat input is permanent without further heat treatment with subsequent hardening.
- the steel proposed according to the invention for the production of the fuel distributors also undergoes a structural change as a result of the heat input during the joining, but hardens in the air, so that martensitic structures with the desired hardness values are obtained again at the joined points due to the air cooling. A critical loss of strength in the joining areas does not occur according to the invention. Therefore, the use of the proposed steel alloy allows a constructive freedom that results from the strength advantages of the material, especially with regard to steel grades already used.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims (4)
- Verwendung einer Stahllegierung bestehend aus folgenden Legierungsbestandteilen (in Gewichtsprozent ausgedrückt):
Rest Eisen und erschmelzungsbedingte Verunreinigungen als Werkstoff für Kraftstoffverteiler im luftvergüteten Zustand mit einer Zugfestigkeit Rm von >850 N/mm2, einer Streckgrenze Rp0,2 von >700 N/mm2 und einer Dehnung A5 von>15%.C 0,09-0,13 Si 0,15-0,30 Mn 1,10-1,60 P maximal 0,015 S maximal 0,011 Cr 1,00-1,60 Mo 0,30-0,60 Al 0,02-0,05 V 0,12-0,25 - Verwendung einer Stahllegierung bestehend aus folgenden Legierungsbestandteilen (in Gewichtsprozent ausgedrückt):
Rest Eisen und erschmelzungsbedingte Verunreinigungen als Werkstoff für Kraftstoffverteiler im luftharten Zustand mit einer Zugfestigkeit Rm von >950 N/mm2, einer Streckgrenze Rp0,2 von >700 N/mm2 und einer Dehnung A5 von>14 %.C 0,09-0,13 Si 0,15-0,30 Mn 1,10-1,60 P maximal 0,015 S maximal 0,011 Cr 1,00-1,60 Mo 0,30-0,60 Al 0,02-0,05 V 0,12-0,25 - Verwendung einer Stahllegierung nach Anspruch 1 oder 2 zur Herstellung von zylinderförmigen Kraftstoffverteilern.
- Verwendung einer Stahllegierung nach Anspruch 1 oder 2 zur Herstellung von kugelförmigen Kraftstoffverteilern.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10246165A DE10246165B4 (de) | 2002-10-02 | 2002-10-02 | Verwendung einer Stahllegierung |
| DE10246165 | 2002-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1405930A1 true EP1405930A1 (de) | 2004-04-07 |
| EP1405930B1 EP1405930B1 (de) | 2004-12-08 |
Family
ID=31984376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03020836A Expired - Lifetime EP1405930B1 (de) | 2002-10-02 | 2003-09-13 | Verwendung einer Stahllegierung für Kraftstoffverteiler |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1405930B1 (de) |
| AT (1) | ATE284456T1 (de) |
| DE (2) | DE10246165B4 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024165201A1 (de) * | 2023-02-06 | 2024-08-15 | Robert Bosch Gmbh | Brennstoffeinblasanlage und brennstoffverteiler für gasförmige brennstoffe, insbesondere wasserstoff |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658218A (ja) * | 1992-08-10 | 1994-03-01 | Hitachi Ltd | 高耐食燃料噴射装置 |
| US5534081A (en) * | 1993-05-11 | 1996-07-09 | Honda Giken Kogyo Kabushiki Kaisha | Fuel injector component |
| JPH08246109A (ja) * | 1995-03-08 | 1996-09-24 | Honda Motor Co Ltd | 耐久性に優れた燃料噴射弁装置及びその製造方法 |
| EP1001043A1 (de) * | 1998-11-09 | 2000-05-17 | Daido Tokushuko Kabushiki Kaisha | Teilen aus martensitischem rostfreiem Stahl und Verfahren zu ihrer Herstellung |
| JP2002195125A (ja) * | 2000-12-26 | 2002-07-10 | Otics Corp | コモンレール及びコモンレールの製造方法 |
| DE10136157A1 (de) * | 2001-05-04 | 2002-08-29 | Mtu Friedrichshafen Gmbh | Kraftstoffinjektor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1483331B2 (de) * | 1964-01-22 | 1971-03-18 | Yawata Iron & Steel Co , Ltd , To kio | Verwendung einer haertbaren stahllegierung |
-
2002
- 2002-10-02 DE DE10246165A patent/DE10246165B4/de not_active Expired - Fee Related
-
2003
- 2003-09-13 AT AT03020836T patent/ATE284456T1/de not_active IP Right Cessation
- 2003-09-13 EP EP03020836A patent/EP1405930B1/de not_active Expired - Lifetime
- 2003-09-13 DE DE2003500191 patent/DE50300191D1/de not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658218A (ja) * | 1992-08-10 | 1994-03-01 | Hitachi Ltd | 高耐食燃料噴射装置 |
| US5534081A (en) * | 1993-05-11 | 1996-07-09 | Honda Giken Kogyo Kabushiki Kaisha | Fuel injector component |
| JPH08246109A (ja) * | 1995-03-08 | 1996-09-24 | Honda Motor Co Ltd | 耐久性に優れた燃料噴射弁装置及びその製造方法 |
| EP1001043A1 (de) * | 1998-11-09 | 2000-05-17 | Daido Tokushuko Kabushiki Kaisha | Teilen aus martensitischem rostfreiem Stahl und Verfahren zu ihrer Herstellung |
| JP2002195125A (ja) * | 2000-12-26 | 2002-07-10 | Otics Corp | コモンレール及びコモンレールの製造方法 |
| DE10136157A1 (de) * | 2001-05-04 | 2002-08-29 | Mtu Friedrichshafen Gmbh | Kraftstoffinjektor |
Non-Patent Citations (4)
| Title |
|---|
| C.W.WEGST: "Stahlschlüssel", 2001, VERLAG STAHLSCHLÜSSEL WEGST GMBH, MARBACH, XP002260922 * |
| PATENT ABSTRACTS OF JAPAN vol. 018, no. 297 (M - 1617) 7 June 1994 (1994-06-07) * |
| PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) * |
| PATENT ABSTRACTS OF JAPAN vol. 2002, no. 11 6 November 2002 (2002-11-06) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024165201A1 (de) * | 2023-02-06 | 2024-08-15 | Robert Bosch Gmbh | Brennstoffeinblasanlage und brennstoffverteiler für gasförmige brennstoffe, insbesondere wasserstoff |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1405930B1 (de) | 2004-12-08 |
| DE10246165B4 (de) | 2004-07-29 |
| ATE284456T1 (de) | 2004-12-15 |
| DE50300191D1 (de) | 2005-01-13 |
| DE10246165A1 (de) | 2004-04-15 |
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