EP4211285A1 - Kolben für einen verbrennungsmotor, verbrennungsmotor mit einem kolben und verwendung einer eisenbasierten legierung - Google Patents
Kolben für einen verbrennungsmotor, verbrennungsmotor mit einem kolben und verwendung einer eisenbasierten legierungInfo
- Publication number
- EP4211285A1 EP4211285A1 EP21777216.9A EP21777216A EP4211285A1 EP 4211285 A1 EP4211285 A1 EP 4211285A1 EP 21777216 A EP21777216 A EP 21777216A EP 4211285 A1 EP4211285 A1 EP 4211285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- iron
- piston
- internal combustion
- based alloy
- combustion engine
- 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.)
- Withdrawn
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 239000000956 alloy Substances 0.000 title claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 239000011651 chromium Substances 0.000 claims abstract description 17
- 239000011572 manganese Substances 0.000 claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011733 molybdenum Substances 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 239000011593 sulfur Substances 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005496 tempering Methods 0.000 claims description 11
- 238000005275 alloying Methods 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005050 thermomechanical fatigue Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- -1 iron carbides Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- 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
- F02F3/00—Pistons
- F02F3/0084—Pistons the pistons being constructed from specific materials
Definitions
- Pistons for an internal combustion engine Internal combustion engine having a piston and using an iron-based alloy
- the present invention relates to a piston for an internal combustion engine and an internal combustion engine with such a piston and the use of an iron-based piston
- alloying elements in steel are crucial for the development of the properties and this is used in the conventional steels mentioned above.
- the addition of chromium causes an increase in oxidation resistance, an increase in strength, a reduction in thermal conductivity but also an increase in material costs.
- the addition of molybdenum causes an increase in oxidation resistance, an increase in (hot) strength but also an increase in material costs.
- the addition of vanadium causes an increase in (hot) strength but also an increase in material costs.
- the invention described here is based on the object of providing a piston for an internal combustion engine, which consists of an iron-based or a steel alloy that ideally combines and transfers the following to the piston in a positive way:
- thermomechanical Fatigue (TMF) d. H . adequate thermomechanical fatigue strength
- the piston according to claim 1 is a piston for an internal combustion engine, preferably a diesel engine, which has or consists of an iron-based alloy which contains the following alloying elements in percent by weight (% by weight or wt%) :
- Copper (Cu) Nickel (Ni ) :
- Contamination has or consists of.
- the iron-based alloy of the piston according to the invention can preferably be characterized or referred to as high-alloy steel and more preferably as tempered steel.
- the most important alloying elements of the piston material of the present invention are chromium (Cr), molybdenum (Mo) and vanadium (V).
- Cr chromium
- Mo molybdenum
- V vanadium
- the iron-based alloy of the piston according to the invention can advantageously in percent by weight (% by weight):
- Chromium (Cr) 3.7 to 5.5 inclusive and preferably 4.0 to 5.0 inclusive;
- the iron-based alloy is a steel of the type X38CrMoV5-3 or DIN/EN-8CrMol 6, i.e. consists of these. These steels are readily available and can be used directly to produce the piston according to the invention with its positive properties.
- the iron-based alloy is advantageously a heat-treated alloy which has or consists of at least one tempering structure and/or an intermediate structure and optionally has a ferrite content of ⁇ 10% in the structure.
- the alloy according to the invention is preferably a tempering steel which is produced by tempering, ie a combination of hardening and subsequent tempering or optional bainitizing.
- the existing carbide formers Cr, Mo and V decisively change the formation mechanism of carbides formed during tempering. At tempering temperatures of up to around 400 °C, FeaC precipitations are also predominantly formed in alloyed heat-treatable steels.
- tempering and tempering achieves a particularly important combination of properties, namely a yield point that is still adequate, combined with a high level of ductility, which is important for safety against brittle fracture, e.g. B. the notched impact strength . Therefore tempering of the tempering structure is carried out at at least 400°C.
- Further components of the present invention is an internal combustion engine, in particular a diesel engine, with a piston according to the configurations described so far.
- the piston according to the invention transfers all of its technical advantages to the engine, which contains the piston as a component.
- the present invention includes the use of the previously defined iron-based alloy in all its configurations, preferably in the form of the above steels of type X38CrMoV5-3 or DIN/EN-8CrMol 6, for pistons of an internal combustion engine, in particular a diesel engine.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020211247.9A DE102020211247A1 (de) | 2020-09-08 | 2020-09-08 | Kolben für einen Verbrennungsmotor, Verbrennungsmotor mit einem Kolben und Verwendung einer eisenbasierten Legierung |
| PCT/EP2021/074658 WO2022053483A1 (de) | 2020-09-08 | 2021-09-08 | Kolben für einen verbrennungsmotor, verbrennungsmotor mit einem kolben und verwendung einer eisenbasierten legierung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4211285A1 true EP4211285A1 (de) | 2023-07-19 |
Family
ID=77910749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21777216.9A Withdrawn EP4211285A1 (de) | 2020-09-08 | 2021-09-08 | Kolben für einen verbrennungsmotor, verbrennungsmotor mit einem kolben und verwendung einer eisenbasierten legierung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4211285A1 (de) |
| DE (1) | DE102020211247A1 (de) |
| WO (1) | WO2022053483A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022108997A1 (de) | 2022-04-13 | 2023-10-19 | Ks Kolbenschmidt Gmbh | Kolbenrohling, kolben und verfahren |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4341811A1 (de) * | 1993-12-08 | 1995-06-14 | Man B & W Diesel Ag | Gaswechselventil für eine Brennkraftmaschine |
| SE511758C2 (sv) | 1998-03-27 | 1999-11-22 | Uddeholm Tooling Ab | Stålmaterial för varmarbetsverktyg |
| DE102011056480A1 (de) * | 2011-12-15 | 2013-06-20 | Gesenkschmiede Schneider Gmbh | Verfahren zur Herstellung eines umgeformten metallischen Werkstücks mit Panzerung |
| DE102014010600A1 (de) * | 2014-07-18 | 2016-01-21 | DST Defence Service Tracks GmbH | Legierung zur Herstellung eines dünnwandigen Stahlbauteils |
-
2020
- 2020-09-08 DE DE102020211247.9A patent/DE102020211247A1/de not_active Withdrawn
-
2021
- 2021-09-08 EP EP21777216.9A patent/EP4211285A1/de not_active Withdrawn
- 2021-09-08 WO PCT/EP2021/074658 patent/WO2022053483A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020211247A1 (de) | 2022-03-10 |
| WO2022053483A1 (de) | 2022-03-17 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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| 17P | Request for examination filed |
Effective date: 20230308 |
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| AK | Designated contracting states |
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| 18W | Application withdrawn |
Effective date: 20230629 |