EP2005040A1 - Piston pour un moteur a combustion interne avec deux rainures annulaires, une rainure annulaire presentant un support de rainure - Google Patents

Piston pour un moteur a combustion interne avec deux rainures annulaires, une rainure annulaire presentant un support de rainure

Info

Publication number
EP2005040A1
EP2005040A1 EP07724037A EP07724037A EP2005040A1 EP 2005040 A1 EP2005040 A1 EP 2005040A1 EP 07724037 A EP07724037 A EP 07724037A EP 07724037 A EP07724037 A EP 07724037A EP 2005040 A1 EP2005040 A1 EP 2005040A1
Authority
EP
European Patent Office
Prior art keywords
piston
ring
ring carrier
internal combustion
carrier
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Withdrawn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
EP07724037A
Other languages
German (de)
English (en)
Inventor
Emmerich Ottliczky
Ralf Buschbeck
Willi Sikorsky
Albrecht Roloff
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt 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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP2005040A1 publication Critical patent/EP2005040A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/22—Rings for preventing wear of grooves or like seatings

Definitions

  • Piston for an internal combustion engine with two annular grooves, wherein an annular groove has a ring carrier
  • the invention relates to a piston for an internal combustion engine, comprising a piston upper part having a ring field with a plurality of annular grooves and a piston lower part, according to the features of the preamble of claim 1.
  • the invention is therefore based on the object to provide a piston for an internal combustion engine, which is improved over the prior art and in particular leads to a friction loss, optimized fatigue strength and to a weight and cost savings.
  • the ring field has exactly two annular grooves and at least the upper annular groove comprises a ring carrier. Due to the presence of only two annular grooves and the gas sealing or oil scraper rings used there, the friction loss is reduced, since less surface of the oil scraper rings runs on the cylinder inner wall of the internal combustion engine. In addition, the weight of the entire piston is reduced, as compared to the known prior art, a piston ring is missing.
  • the upper, the combustion chamber of the engine facing annular groove has a ring carrier, which may consist of the same or a different material as the material of the piston upper part.
  • a ring carrier which may consist of the same or a different material as the material of the piston upper part.
  • the ring carrier is made of a steel material or Niresist, if the upper piston part consists of a lightweight material.
  • the lower annular groove comprises a ring carrier.
  • the two annular grooves each comprise a ring carrier, whereby the Increased strength and the production cost is reduced, further can also account for a machining for introducing the annular grooves.
  • At least one annular carrier of the upper annular groove but in particular both ring carriers are completely surrounded by the material of the piston upper part.
  • This has the advantage of increased strength, since the ring carrier completely (with the exception of the outwardly facing surface in which the grooves are arranged, are surrounded by the material of the piston upper part and thus can sufficiently support.
  • the at least one ring carrier is alfiniert.
  • This Alfin für on the ring carrier in those areas in which the ring carrier is surrounded by the material of the piston upper part has the advantage that thereby the connection between the ring carrier and the surrounding material of the piston upper part is improved, whereby the strength is additionally increased.
  • at least the upper piston part, but in particular the entire piston consists of a light metal material and the ring carrier made of a steel material.
  • At least the piston top, in particular the entire piston is made of a light metal material (such as aluminum), while the ring carrier is made of a steel material.
  • the same material pairings upper piston part and ring carrier made of steel or piston upper part and ring carrier made of aluminum are not excluded.
  • the invention provides a piston with only two annular grooves, preferably made of a light metal material for diesel or gasoline internal combustion engines available, wherein at least the upper annular groove is provided with a ring carrier, thereby advantageously friction reduction, weight savings, cost savings due to material and manufacturing costs, fatigue increase and reduced space requirements are given.
  • An embodiment of the invention is shown in two views in Figures 1 and 2, wherein a piston is designated by the reference numeral 1.
  • the piston 1 consists of a piston upper part 2 and a lower piston part 3, which can be manufactured separately from one another and subsequently joined together or which together form an integral component (piston blank).
  • the piston upper part 2 has a ring field 4, wherein depending on the design of the piston 1 coaxially within the ring field 4, a combustion bowl can be present, but not necessarily.
  • the piston lower part 3 has, in a manner known per se, piston stems with which the piston 1 is guided in the cylinder of the internal combustion engine.
  • the piston shafts comprise bolt holes, in which a piston pin can be used for connection to a connecting rod.
  • the ring field 4 exactly two annular grooves, ie a lower annular groove 5 and an upper annular groove 6, on, wherein at least the upper annular groove 6 comprises a ring carrier 7.
  • the ring carrier 7 is a preferably one-piece component, which is used in casting the piston blank in a mold, is fixed in position at the desired position, in which case then the mold is filled with casting melt, and the ring carrier 7 is completely surrounded by the casting melt. If the ring carrier 7 consists of a steel material and the casting melt of a light metal material, preferably the ring carrier 7 is alfiniert before insertion into the casting mold. In the same way, a ring carrier for the lower annular groove 5 can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

L'invention concerne un piston (1) pour un moteur à combustion interne, constitué d'une partie supérieure de piston (2) présentant un champ annulaire (4) avec plusieurs rainures annulaires ainsi que d'une partie inférieure de piston (3), et conformément à l'invention, le champ annulaire (4) présente exactement deux rainures annulaires (5, 6) et la rainure annulaire supérieure (6) comprend un support de rainure (7).
EP07724037A 2006-04-08 2007-04-05 Piston pour un moteur a combustion interne avec deux rainures annulaires, une rainure annulaire presentant un support de rainure Withdrawn EP2005040A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006016630 2006-04-08
PCT/EP2007/003096 WO2007115790A1 (fr) 2006-04-08 2007-04-05 Piston pour un moteur a combustion interne avec deux rainures annulaires, une rainure annulaire presentant un support de rainure

Publications (1)

Publication Number Publication Date
EP2005040A1 true EP2005040A1 (fr) 2008-12-24

Family

ID=38267572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724037A Withdrawn EP2005040A1 (fr) 2006-04-08 2007-04-05 Piston pour un moteur a combustion interne avec deux rainures annulaires, une rainure annulaire presentant un support de rainure

Country Status (6)

Country Link
US (1) US20090173309A1 (fr)
EP (1) EP2005040A1 (fr)
JP (1) JP2009533589A (fr)
KR (1) KR20090005085A (fr)
CN (1) CN101460769A (fr)
WO (1) WO2007115790A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8859110B2 (en) 2008-06-20 2014-10-14 Basf Se Cyclic phosphazene compounds and use thereof in organic light emitting diodes
US10753310B2 (en) 2012-02-10 2020-08-25 Tenneco Inc. Piston with enhanced cooling gallery
BR202012009964U2 (pt) * 2012-04-27 2018-12-11 Perci Erbe aperfeiçoamento em posicionamento de anéis em pistão de motores de combustão interna
EP2971717B1 (fr) 2013-03-13 2017-05-10 Federal-Mogul Corporation Piston et son procédé de construction
US20170057023A1 (en) * 2015-08-26 2017-03-02 Caterpillar Inc. Piston and Method of Piston Remanufacturing
CN114354423B (zh) * 2021-12-30 2024-04-16 大连海事大学 一种活塞环槽-活塞环摩擦磨损试验机及试验方法

Family Cites Families (20)

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GB460420A (en) * 1935-07-29 1937-01-27 Brandenburgische Motorenwerke Improvements in and relating to lining rings for piston ring grooves
US2396730A (en) * 1941-10-24 1946-03-19 Al Fin Corp Coating metal
US2716581A (en) * 1951-10-13 1955-08-30 Thompson Prod Inc Piston
US2849790A (en) * 1954-02-08 1958-09-02 Fairchild Engine & Airplane Joints between iron and light metals
CH375951A (de) * 1958-05-19 1964-03-15 California Research Corp Eisenmetallkolben mit Kolbenring
DE2743512A1 (de) * 1977-08-27 1979-03-01 Eugen Stump Fuehrungsring
US4282837A (en) * 1979-09-05 1981-08-11 General Motors Corporation Two-cycle diesel engine with piston ring stabilizing accumulator volume
IT1183114B (it) * 1985-01-11 1987-10-05 Ass Eng Italia Pistone d'alluminio o di lega d'alluminio per motori a combustione interna
JPH0378553A (ja) * 1989-08-22 1991-04-03 Riken Corp 内燃機関用アルミニウム合金製ピストン
JP2659636B2 (ja) * 1991-09-10 1997-09-30 日野自動車工業株式会社 ディーゼルエンジン用ピストンの中空耐摩環の形成方法
JPH05306650A (ja) * 1992-04-30 1993-11-19 Unisia Jecs Corp 内燃機関のアルミ合金製ピストン
JPH07109953A (ja) * 1993-10-12 1995-04-25 Yamaha Motor Co Ltd 筒内燃料噴射式２サイクルエンジンのピストン
JPH07301148A (ja) * 1994-04-30 1995-11-14 Isuzu Motors Ltd 内燃機関のピストン
DE19537848A1 (de) * 1995-10-11 1997-04-17 Mahle Gmbh Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist
JPH09111365A (ja) * 1995-10-16 1997-04-28 Toyota Motor Corp 摺動用材料、ピストン及びその製造方法
JP2000202612A (ja) * 1999-01-14 2000-07-25 Riken Corp アルミニウム合金製ピストン
US6484790B1 (en) * 1999-08-31 2002-11-26 Cummins Inc. Metallurgical bonding of coated inserts within metal castings
DE10134293B4 (de) * 2001-07-14 2009-06-04 Mahle Gmbh Gekühlter Ringträger für einen Kolben
KR101004883B1 (ko) * 2002-06-25 2010-12-28 말레 게엠베하 냉각식 링 캐리어 제조 방법
DE102005047035B3 (de) * 2005-09-30 2007-04-19 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor sowie danach hergestellter Kolben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007115790A1 *

Also Published As

Publication number Publication date
WO2007115790A1 (fr) 2007-10-18
JP2009533589A (ja) 2009-09-17
US20090173309A1 (en) 2009-07-09
KR20090005085A (ko) 2009-01-12
CN101460769A (zh) 2009-06-17

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Inventor name: SIKORSKY, WILLI

Inventor name: ROLOFF, ALBRECHT

Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH

Inventor name: OTTLICZKY, EMMERICH

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Effective date: 20090126

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Inventor name: ROLOFF, ALBRECHT

Inventor name: OTTLICZKY, EMMERICH

Inventor name: SIKORSKY, WILLI

Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH

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