EP1725762A1 - Piston pour moteur a combustion interne, procede pour produire un piston et utilisation d'un alliage de cuivre pour produire un piston - Google Patents

Piston pour moteur a combustion interne, procede pour produire un piston et utilisation d'un alliage de cuivre pour produire un piston

Info

Publication number
EP1725762A1
EP1725762A1 EP05715883A EP05715883A EP1725762A1 EP 1725762 A1 EP1725762 A1 EP 1725762A1 EP 05715883 A EP05715883 A EP 05715883A EP 05715883 A EP05715883 A EP 05715883A EP 1725762 A1 EP1725762 A1 EP 1725762A1
Authority
EP
European Patent Office
Prior art keywords
piston
copper alloy
nickel
silicon
amount
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Withdrawn
Application number
EP05715883A
Other languages
German (de)
English (en)
Inventor
Lothar Hofmann
Klaus Lades
Karl-Heinz Obermeier
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.)
Federal Mogul Nuernberg GmbH
Original Assignee
Federal Mogul Nuernberg GmbH
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 Federal Mogul Nuernberg GmbH filed Critical Federal Mogul Nuernberg GmbH
Publication of EP1725762A1 publication Critical patent/EP1725762A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/04—Alloys based on copper with zinc as the next major constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0469—Other heavy metals
    • F05C2201/0475—Copper or alloys thereof

Definitions

  • Piston for an internal combustion engine method for producing a piston and use of a copper alloy for producing a piston
  • the invention relates to a piston for an internal combustion engine, a method for producing such a piston and the use of a copper alloy for producing such a piston.
  • steel is used as the piston material instead of aluminum.
  • steel pistons have a higher weight and a poorer thermal conductivity than Aluminum pistons.
  • the poor thermal conductivity means, for example, that the pistons have to be provided with a cooling channel.
  • a steel piston has a comparatively high piston temperature despite an integrated cooling channel. In particular, this is significantly higher than that of comparable aluminum pistons. This leads disadvantageously to the proportion of nitrogen oxides in the exhaust gas being higher.
  • a comparatively hot piston reduces the "degree of filling" of the combustion chamber with air, which leads to a reduction in performance.
  • EP 0 712 340 B1 discloses a casting process for producing a piston, in which a first workpiece, which consists of an alloy based on iron or copper, is cast around with an alloy based on aluminum.
  • a light metal piston has a combustion chamber trough with reinforcement, which consists of a copper alloy due to an insert.
  • US 2,241,815 describes a copper casting alloy which is described as being suitable for structural parts in the electrical and mechanical field.
  • EP 1 158 062 B1 discloses the use of a copper-zinc-aluminum kneading material for the production of bearing bushes, for example for pistons of internal combustion engines.
  • DE 44 15 629 Cl relates to the use of a copper-nickel-silicon alloy for the production of casting pistons for die casting machines.
  • DE 430 188 C discloses a piston for internal combustion engines which consists of a steel or iron jacket and a hard-soldered base of an alloy made of copper, the base being drawn close to the piston pin eyes.
  • DE 44 14 095 AI discloses a method for producing a composite component, for example a piston, in which a ring carrier and, in certain embodiments, parts of the piston head surface can consist of a cast part made of a copper alloy.
  • the object of the invention is to provide a piston for an internal combustion engine which is improved in terms of its properties and economical producibility, a method for its production and a novel use of a copper alloy.
  • a piston for an internal combustion engine is made of a copper alloy in a new way.
  • the piston consists exclusively of a copper alloy in the following sense.
  • the piston does not have individual parts that are later cast or inserted with a different alloy. Rather, the base body of the piston, as mentioned, consists entirely of a copper alloy.
  • the piston can be coated so that, with the exception of an optional coating, it consequently consists entirely of a copper alloy.
  • copper alloys can be shaped much more easily and cost-effectively than steels, which usually have to be forged.
  • a solution-annealed copper alloy can be formed, for example, by extrusion.
  • Tool wear is significantly reduced compared to machining steel pistons.
  • pistons made of copper alloys are comparable to steel pistons.
  • the mechanical strength is also comparable and has proven in particular to meet the requirements that apply to use as an engine piston.
  • copper alloys also offer the advantage that the wall thicknesses only have to be made as thick as is necessary due to the strength requirements because of the good deformability of the copper alloys. In this way, weight can be saved in an advantageous manner.
  • the wall thicknesses of steel pistons are sometimes higher than required because of the strength requirements due to the poor deformability of the steel.
  • the invention thus creates a piston of an internal combustion engine which meets the prevailing requirements, is improved in particular with regard to the temperatures and is also economically producible. Preferred developments of the piston according to the invention are described in the further claims.
  • an alloy composition which contains 1% to 7% nickel and / or 0.2% to 5% silicon is currently preferred, the rest consisting of copper. 2.5% to 7% nickel and / or more than 1.5% to 5% silicon are further preferred. Even more preferred are more than 4%, in particular more than 5% to 7% nickel and / or more than 2% to 5% silicon.
  • the copper alloy contains up to 5% aluminum.
  • An increase in strength could also be observed if the alloy contains at least one of the following elements in the stated amount: up to 4% tin, up to 30% zinc, up to 5% iron and / or up to 5% manganese, up to 1% cobalt, up to 2% chromium.
  • the piston can be at least partially coated, which has advantages in terms of oxidation protection.
  • the piston according to the invention made of a copper alloy can also have a cooling channel in certain applications, it is currently preferred with regard to the production costs to design the piston solidly, in other words without a cooling channel.
  • the above-mentioned object is also achieved by a method for producing a piston for an internal combustion engine, in which the piston is manufactured from a copper alloy.
  • This provides an inexpensive method for producing an engine piston, which has improved properties, particularly with regard to the prevailing temperatures. Due to the favorable properties of the copper alloy mentioned above, e.g. The ease of formability and the possibility of dispensing with a cooling channel make the manufacturing process extremely economical.
  • the alloy is then preferably solution-annealed at, for example, 750 ° C. to 950 ° C., which is favorable for the deformability. This is followed by cooling, preferably a comparatively rapid cooling, which is favorable for avoiding excretions.
  • the piston is finally machined in the course of the manufacturing process in a conventional manner and in particular can be coated, as already described above for the piston.
  • the object on which the invention is based is finally achieved by using a copper alloy for producing a piston for an internal combustion engine.
  • a copper alloy is used to manufacture the piston.
  • This use leads in a novel and advantageous manner to an economically producible piston with improved Characteristics.
  • the copper alloys already explained above are again preferred.
  • a flask made of a copper alloy with 1% to 7% nickel, 0.2% to 5% silicon, up to 5% aluminum, up to 4% tin, up to 30% zinc, up to 5% iron and up to 5% manganese produced.
  • the alloy was cast in a continuous casting process and then extruded.
  • the alloy was then solution annealed at 750 ° C to 950 ° C and then rapidly cooled. In this way, excretions could be avoided. Individual sections were separated from this solution-annealed strand, heated and shaped into pistons. This deformation is advantageously carried out by extrusion.
  • the piston blank obtained in this way was cured at 350 ° C. to 550 ° C. and for 0.5 to 10 hours and finally machined. As experiments show, it was possible to obtain a flask which has improved properties, particularly with regard to the temperature resistance.

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)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

La présente invention concerne un piston pour un moteur à combustion interne constitué d'un alliage de cuivre. La présente invention concerne également un procédé pour produire un piston à partir d'un alliage de cuivre. Selon la présente invention, on utilise un alliage de cuivre pour produire un piston pour un moteur à combustion interne.
EP05715883A 2004-03-17 2005-03-09 Piston pour moteur a combustion interne, procede pour produire un piston et utilisation d'un alliage de cuivre pour produire un piston Withdrawn EP1725762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004013181A DE102004013181B3 (de) 2004-03-17 2004-03-17 Kolben für einen Verbrennungsmotor, Verfahren zur Herstellung eines Kolbens sowie Verwendung einer Kupferlegierung zur Herstellung eines Kolbens
PCT/EP2005/002497 WO2005093244A1 (fr) 2004-03-17 2005-03-09 Piston pour moteur a combustion interne, procede pour produire un piston et utilisation d'un alliage de cuivre pour produire un piston

Publications (1)

Publication Number Publication Date
EP1725762A1 true EP1725762A1 (fr) 2006-11-29

Family

ID=34877618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715883A Withdrawn EP1725762A1 (fr) 2004-03-17 2005-03-09 Piston pour moteur a combustion interne, procede pour produire un piston et utilisation d'un alliage de cuivre pour produire un piston

Country Status (5)

Country Link
US (1) US20080000444A1 (fr)
EP (1) EP1725762A1 (fr)
JP (1) JP2007529667A (fr)
DE (1) DE102004013181B3 (fr)
WO (1) WO2005093244A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502005002181D1 (de) * 2005-12-14 2008-01-17 Kemper Gebr Gmbh & Co Kg Verwendung einer migrationsarmen Kupferlegierung sowie Bauteile aus dieser Legierung
DE102006030699B4 (de) * 2006-06-30 2014-10-02 Daimler Ag Gegossener Stahlkolben für Verbrennungsmotoren
DE102007063643B4 (de) * 2007-06-28 2012-07-26 Wieland-Werke Ag Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
CN101440445B (zh) 2008-12-23 2010-07-07 路达(厦门)工业有限公司 无铅易切削铝黄铜合金及其制造方法
US20100155011A1 (en) * 2008-12-23 2010-06-24 Chuankai Xu Lead-Free Free-Cutting Aluminum Brass Alloy And Its Manufacturing Method
US9163579B2 (en) * 2011-11-28 2015-10-20 Federal-Mogul Corporation Piston with anti-carbon deposit coating and method of construction thereof
US20160189693A1 (en) * 2014-12-30 2016-06-30 Avedis Zildjian Co. Nickel brass cymbal having low nickel content
PL3565912T3 (pl) * 2017-01-06 2021-10-11 Materion Corporation Pierścienie tłokowe uszczelniające ze stopów miedzi
US10837554B2 (en) 2017-01-06 2020-11-17 Materion Corporation Piston compression rings of copper-nickel-tin alloys
DE102017119967A1 (de) * 2017-08-31 2019-02-28 Schaeffler Technologies AG & Co. KG Herstellungsverfahren, Kolbenrohling, Kolben sowie Axialkolbenmaschine mit dem Kolben
JP2021519860A (ja) * 2018-03-27 2021-08-12 マテリオン コーポレイション 向上した熱伝導性及び耐摩耗性を有する銅合金組成物

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE430188C (de) * 1924-09-30 1926-06-12 Hans Frohloff Kolben fuer Explosionsmotoren
US1700604A (en) * 1925-12-24 1929-01-29 Heinrich Marzahn Internal-combustion-engine piston and process for making the same
DE597938C (de) * 1931-08-01 1934-06-01 Metallgesellschaft Ag Verwendung von Kupferlegierungen fuer Gegenstaende mit hoher Warmhaerte
DE657036C (de) * 1935-11-15 1938-02-22 Jean Bonfils Verwendung von Kupfer-Aluminium-Legierungen fuer Kolben
DE655547C (de) * 1936-05-21 1938-01-18 Wilhelm Kroll Dr Ing Verwendung von Kupfer-Eisen-Legierungen fuer Bauteile von Kraftmaschinen
GB503753A (en) * 1937-07-09 1939-04-11 P R Mallory & Company Inc Copper alloys
US2241815A (en) * 1938-08-12 1941-05-13 Mallory & Co Inc P R Method of treating copper alloy castings
DE1154642B (de) * 1960-09-08 1963-09-19 Ver Deutsche Metallwerke Ag Aluminiumhaltige Mehrstoffbronzen, die sich insbesondere durch hohe Warmfestigkeit und chemische Bestaendigkeit auszeichnen
US3911891A (en) * 1973-08-13 1975-10-14 Robert D Dowell Coating for metal surfaces and method for application
JPS5524950A (en) * 1978-08-11 1980-02-22 Hitachi Ltd Manufacture of graphite-dispersed cast copper alloy
FR2500485A1 (fr) * 1981-02-23 1982-08-27 Cierpucha Marie Section des pieces en cuivre ou en alliages de cuivre, contre la corrosion seche ou humide
DE3144123A1 (de) * 1981-11-06 1983-05-19 Karl Schmidt Gmbh, 7107 Neckarsulm Leichtmetallkolben
JPH083135B2 (ja) * 1991-02-07 1996-01-17 大同メタル工業株式会社 耐摩耗性銅合金
DE4325864A1 (de) * 1993-08-02 1995-05-11 Mahle Gmbh Gießtechnisches Verfahren zur Herstellung eines Bauteiles, insbesondere Kolben, bestehend aus zwei unterschiedlichen Werkstoffen
DE4414095A1 (de) * 1994-04-22 1995-10-26 Alcan Gmbh Verfahren zum Verbinden zweier Werkstücke aus Metall zu einem Verbundbauteil
DE4415629C1 (de) * 1994-05-04 1995-08-17 Wieland Werke Ag Verwendung einer Kupfer-Nickel-Silizium-Legierung zur Herstellung von Gießkolben für Druckgießmaschinen
EP0864660B1 (fr) * 1997-02-12 2003-05-14 Yamaha Hatsudoki Kabushiki Kaisha Piston pour un moteur à combustion interne et son procédé de fabrication
US6419769B1 (en) * 1998-09-08 2002-07-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Aluminum-silicon alloy having improved properties at elevated temperatures and process for producing cast articles therefrom
ATE228581T1 (de) * 2000-05-17 2002-12-15 Wieland Werke Ag Kupfer-zink-aluminium-knetwerkstoff und dessen verwendung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005093244A1 *

Also Published As

Publication number Publication date
US20080000444A1 (en) 2008-01-03
DE102004013181B3 (de) 2005-09-22
JP2007529667A (ja) 2007-10-25
WO2005093244A1 (fr) 2005-10-06

Similar Documents

Publication Publication Date Title
DE19861160C1 (de) Schichtverbundwerkstoff für Gleitelemente
EP1866451B1 (fr) Utilisation d'un alliage cuivre-zinc
EP2806044A2 (fr) Alliage de cuivre et de zinc, procédé de fabrication et utilisation
EP1815033A1 (fr) Utilisation d'un alliage cuivre-zinc
DE102009048124A1 (de) Stahlkolben für Verbrennungsmotoren
DE102018130544A1 (de) Hochtemperatur-aluminiumgusslegierung für zylinderköpfe
DE102004013181B3 (de) Kolben für einen Verbrennungsmotor, Verfahren zur Herstellung eines Kolbens sowie Verwendung einer Kupferlegierung zur Herstellung eines Kolbens
DE102021111691A1 (de) Aluminiumlegierung für guss und additive fertigung von motorkomponenten für hochtemperaturanwendungen
DE2919478C2 (fr)
WO2009000420A1 (fr) Piston pour un moteur à combustion interne et procédé pour sa fabrication
EP2951333B1 (fr) Matériau composite métallique pour paliers lisses comprenant une couche support métallique
DE3300582C2 (de) Verfahren zur pulvermetallurgischen Herstellung von Ringträgern
DE102016120911B4 (de) Zylinderblock für einen Verbrennungsmotor
EP3665313A1 (fr) Alliage de laiton spécial ainsi que produit d'alliage de laiton spécial
DE19723392C2 (de) Ventilsitz
DE102012018934A1 (de) Verfahren zur Herstellung eines Halbzeugs aus einer Aluminium-Eisen-Legierung sowie nach dem Verfahren erhältliche Halbzeuge
DE102019112872A1 (de) Leichtbau-einsätze für kolbenringe, verfahren zu ihrer herstellung und erzeugnisse, die diese enthalten
EP3172350B1 (fr) Piston pour un moteur a combustion, son procédé de fabrication et utilisation d'un alliage d'aluminium pour la un élément de palier d'un moteur à combustion
EP2052096A1 (fr) Matériau acier, utilisé notamment pour produire des segments de pistons
EP3201459A1 (fr) Piston, moteur à pistons avec un tel piston et véhicule automobile avec un tel moteur à pistons
EP1688517B1 (fr) Procédé de fabrication d'une couche métallique d'adhésion sur une pièce coulée
DE102012011992A1 (de) Metallisches Gussbauteil und Verfahren zur Herstellung eines metallischen Gussbauteils
DE102005022469B4 (de) Brennkraftmaschine mit einem Zylinderkurbelgehäuse
DE102017119437A1 (de) Stahllegierungen und zylinderlaufbuchsen aus selbigen
DE19721406A1 (de) Ventilsitz

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060905

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070306

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070717