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EP0670960B2 - Ensemble piston-cylindre d'un moteur a combustion interne - Google Patents
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EP0670960B2 - Ensemble piston-cylindre d'un moteur a combustion interne - Google Patents

Ensemble piston-cylindre d'un moteur a combustion interne Download PDF

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Publication number
EP0670960B2
EP0670960B2 EP93921822A EP93921822A EP0670960B2 EP 0670960 B2 EP0670960 B2 EP 0670960B2 EP 93921822 A EP93921822 A EP 93921822A EP 93921822 A EP93921822 A EP 93921822A EP 0670960 B2 EP0670960 B2 EP 0670960B2
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
cylinder assembly
working
assembly according
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.)
Expired - Lifetime
Application number
EP93921822A
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German (de)
English (en)
Other versions
EP0670960A1 (fr
EP0670960B1 (fr
Inventor
Christoph Hannig
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.)
Mahle GmbH
Original Assignee
Mahle 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6473890&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0670960(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mahle GmbH filed Critical Mahle GmbH
Publication of EP0670960A1 publication Critical patent/EP0670960A1/fr
Application granted granted Critical
Publication of EP0670960B1 publication Critical patent/EP0670960B1/fr
Publication of EP0670960B2 publication Critical patent/EP0670960B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • F02F3/10—Pistons  having surface coverings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • 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
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • 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
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • 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
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F05C2203/0865—Oxide ceramics
    • F05C2203/0882—Carbon, e.g. graphite

Definitions

  • the invention relates to a piston-cylinder device an internal combustion engine according to the preamble of claim 1, as known from MTZ Motortechnische Zeitschrift 34 (1973), pages 49 to 51.
  • piston-cylinder pairings of these known Type is the piston running layer regularly metallic and applied galvanically.
  • From US-A-3,935,797 is for example one Piston-cylinder device known in which the cylinder tread through a cylinder liner made of aluminum alloy is formed and in which the piston from a Aluminum alloy is the basic material and on at least 80% of its tread with a running layer is provided, which layer consists of iron.
  • Such a piston-cylinder device with a Cylinder barrel made of an aluminum alloy and a coated piston is also from JP-A-01 253 553 known.
  • the invention is based on this with the problem of an overall more economical to produce To create piston-piston ring-cylinder construction.
  • the R a value specified in the claims is a value determined according to the ISO standard and denotes the arithmetic average value of the peak heights of the surface peaks forming the roughness.
  • the piston-cylinder pairing according to the invention should be used in particular in internal combustion engines for lawn mowers, brush cutters, brushcutters and stationary engines.
  • JP-A-41 89 465 which is a cylinder block with a tread roughness of 0.8-1.2 microns affects as well to EP-A-0466 978, in the as coating composition for a piston a mixture of graphite powder and one Resin is provided, and on JP-A-63 289 373, from which a steel piston ring is known.
  • the piston 1 has a diameter of approximately 42 mm and is in a cylinder 2 of a two-stroke engine guided.
  • the base material of the piston consists of an aluminum-silicon alloy with the following composition, given in percent by weight: Si 17-19 Cu 0.8-1.5 mg 0.8-1.3 Ni 0.8-1.3 Fe less than or equal to 0.7 Mn less than or equal to 0.2 Ti less than or equal to 0.2 Zn less than / equal to 0.3 AI rest
  • Running layer 4 can be on the above the only one here Piston ring groove 5 lying top land area of the piston 1 be applied.
  • the running layers 3, 4 have both in the shaft valley a thickness of approximately also in the top land area 20 microns.
  • the structure and composition of the running layers 3,4 are as follows.
  • the layer in question is after that on this Field known screen printing applied.
  • the gratit is in curable Integrated polyimide as a binder.
  • the Graphite content within the hardened layer is about 40 weight percent.
  • a solvent for example N-methyl-pyrrolidone (NMP) can be.
  • NMP N-methyl-pyrrolidone
  • the proportion of the solvent in the layer starting material to be applied is about 50 percent by weight.
  • the particle size of the graphite incorporated in the layer lies between 1 and 10 microns.
  • the in the screen printing process applied layer is at about 200 ° C cured for about 15 minutes.
  • the material forming the counter-race of the cylinder 1 is an aluminum alloy with the following composition, given in percent by weight. Si 16.0 ... 18.0 mg 0.4 ... 0.7 Cu 4.0 ... 5.0 Fe less than or equal to 0.7 AI rest
  • the piston ring 6 inserted into the piston ring groove 5 consists of an STD material of the following composition, given in weight percent: C 3.5-3.9 P 0.3-0.6 Cu maximum 0.5 Si 2.4 - 3.1 S 0.15 maximum Mn 0.5-0.9 Cr maximum 0.4 rest Fe
  • the tread geometry of the piston ring 6 is crowned.
  • Such a piston ring is for the one used here Dimension of 42 mm x 1.5 mm determined by the German standard DIN 70910 DI T1 B.
  • the piston-cylinder device described above with a piston of a diameter of about 42 mm is used for a performance range in the order of about 20-40 kilowatts / liter certainly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Claims (9)

  1. Ensemble piston-cylindre de moteur à combustion interne, en particulier de moteur à deux temps, dans lequel au moins la surface de glissement du cylindre est formée d'un alliage d'aluminium et le piston (1) est constitué d'un alliage d'aluminium comme matériau de base et est pourvu d'une couche de glissement (3,4) sur au moins 80% de sa surface de glissement et pourvu d'au moins un segment (6), dans lequel au moins un segment (6) consiste en fonte ou en acier, caractérisé par le fait que
    a) la surface de glissement du cylindre a une rugosité Ra ≤ 0,3 µm,
    b) la couche de glissement (3, 4) du piston est en graphite lié à la résine,
    c) le segment (6) est pourvu d'une surface glissement bombée,
    d) la surface de glissement du cylindre est alésée avec précision.
  2. Ensemble piston-cylindre selon la revendication 1, caractérisé par le fait que l'alliage d'aluminium formant la surface de glissement du cylindre est un alliage aluminium-silicium ayant une teneur en silicium supérieure à 8% en poids.
  3. Ensemble piston-cylindre selon la revendication 1, caractérisé par le fait que l'alliage d'aluminium formant la surface de glissement du cylindre est un alliage Al-Si-Zn dont la teneur en silicium est supérieure à 5% en poids et la teneur en zinc supérieure à 2% en poids.
  4. Ensemble piston-cylindre selon l'une des revendications précédentes, caractérisé pa le fait que la couche de glissement du piston a une épaisseur comprise entre 10 et 20 micromètres.
  5. Ensemble piston-cylindre selon la revendication 4, caractérisé par le fait que dans la couche de glissement du piston, les particules de graphite ont une grosseur comprise entre 1 et 10 micromètres, de préférance entre 1 et 5 micromètres.
  6. Ensemble piston-cylindre selon la revendication 5, caractérisé par le fait que la teneur en graphite est comprise entre 30 et 60%, de préférence entre 40 et 60 %.
  7. Ensemble piston-cylindre selon l'une des revendications précédentes, caractérisé par le fait que le liant de particules de graphite dans la couche de glissement du piston est un polyimide durcissable.
  8. Ensemble piston-cylindre selon l'une des revendications précédentes, caractérisé par le fait que la température pour le durcissement de la couche de glissement du piston est comprise entre 150 et 200 C et le durcissement est effectué pendant une durée comprise entre 10 et 30 minutes.
  9. Ensemble piston-cylindre selon l'une des revendications précédentes, caractérisé par le fait que le matériau de base à l'aluminium du piston est un alliage aluminium-silicium.
EP93921822A 1992-11-28 1993-10-12 Ensemble piston-cylindre d'un moteur a combustion interne Expired - Lifetime EP0670960B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4240050 1992-11-28
DE4240050A DE4240050A1 (de) 1992-11-28 1992-11-28 Kolben-Zylinder-Vorrichtung eines Verbrennungsmotors
PCT/DE1993/000977 WO1994012783A1 (fr) 1992-11-28 1993-10-12 Ensemble piston-cylindre d'un moteur a combustion interne

Publications (3)

Publication Number Publication Date
EP0670960A1 EP0670960A1 (fr) 1995-09-13
EP0670960B1 EP0670960B1 (fr) 1996-07-17
EP0670960B2 true EP0670960B2 (fr) 2002-06-05

Family

ID=6473890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93921822A Expired - Lifetime EP0670960B2 (fr) 1992-11-28 1993-10-12 Ensemble piston-cylindre d'un moteur a combustion interne

Country Status (5)

Country Link
US (1) US5560283A (fr)
EP (1) EP0670960B2 (fr)
JP (1) JPH08503528A (fr)
DE (2) DE4240050A1 (fr)
WO (1) WO1994012783A1 (fr)

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DE19643778C2 (de) * 1996-10-23 2000-04-13 Alcan Gmbh Leichtbaukolben
DE19824859C2 (de) * 1998-06-04 2002-09-26 Ks Kolbenschmidt Gmbh Leichtmetallkolben mit Oberflächenbewehrung
DE19829349A1 (de) * 1998-07-01 2000-01-13 Daimler Chrysler Ag Leichtmetallkolben
RU2135803C1 (ru) * 1998-07-23 1999-08-27 Муравлев Федор Дмитриевич Деталь цилиндропоршневой группы двигателя внутреннего сгорания, способ обработки ее поверхности, устройство для реализации способа и установка для обработки рабочей поверхности цилиндра
DE19916201C1 (de) * 1999-02-22 2000-09-14 Ks Kolbenschmidt Gmbh Kolben für eine Verbrennungskraftmaschine
JP2000283291A (ja) * 1999-03-31 2000-10-13 Nippon Piston Ring Co Ltd シリンダライナ
DE19919725A1 (de) 1999-04-30 2000-11-02 Mahle Gmbh Kolbenmotor mit einem Zylinder aus Leichtmetall
US6548453B1 (en) 2000-05-04 2003-04-15 Honeywell International Inc. Continuously coated multi-composition, multi-layered solid lubricant coatings based on polyimide polymer compositions
CN1330873C (zh) * 2002-07-25 2007-08-08 株式会社理研 活塞环
DE102005022469B4 (de) * 2005-05-14 2011-05-05 Audi Ag Brennkraftmaschine mit einem Zylinderkurbelgehäuse
US7543557B2 (en) * 2005-09-01 2009-06-09 Gm Global Technology Operations, Inc. Scuff resistant aluminum piston and aluminum cylinder bore combination and method of making
DE102010051319A1 (de) * 2010-11-13 2012-05-16 Mahle International Gmbh Kolben für einen Verbrennungsmotor
US10279996B2 (en) * 2011-09-16 2019-05-07 Simplehuman, Llc Receptacle with low friction and low noise motion damper for lid
US9790025B2 (en) 2012-03-09 2017-10-17 Simplehuman, Llc Trash can with clutch mechanism
WO2015120016A1 (fr) 2014-02-04 2015-08-13 Federal-Mogul Corporation Piston avec revêtement abradable servant à produire une géométrie de contact appropriée sur une surface de frottement
US9751692B2 (en) 2014-03-14 2017-09-05 Simplehuman, Llc Dual sensing receptacles
US10279997B2 (en) 2014-03-14 2019-05-07 Simplehuman, Llc Trash can assembly
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CA2959905C (fr) 2016-03-03 2026-01-20 Simplehuman, Llc Ensembles de receptacles dotes d'attenuateurs de mouvement
USD798016S1 (en) 2016-03-04 2017-09-19 Simplehuman, Llc Trash can
USD793642S1 (en) 2016-03-04 2017-08-01 Simplehuman, Llc Trash can
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US10731259B2 (en) 2016-11-04 2020-08-04 Cummins Inc. Pistons with thermal barrier coatings
USD835376S1 (en) 2016-11-14 2018-12-04 Simplehuman, Llc Trash can
USD855919S1 (en) 2017-06-22 2019-08-06 Simplehuman, Llc Trash can
USD858024S1 (en) 2018-01-12 2019-08-27 Simplehuman, Llc Trash can
USD858923S1 (en) 2018-01-12 2019-09-03 Simplehuman, Llc Trash can
CA3035674C (fr) 2018-03-07 2026-01-20 Simplehuman, Llc Assemblage de poubelle
JP6918229B2 (ja) * 2018-05-31 2021-08-11 日本製鉄株式会社 スチールピストン
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USD963277S1 (en) 2020-08-26 2022-09-06 Simplehuman, Llc Waste receptacle
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Also Published As

Publication number Publication date
WO1994012783A1 (fr) 1994-06-09
DE59303279D1 (de) 1996-08-22
EP0670960A1 (fr) 1995-09-13
DE4240050A1 (de) 1994-06-01
US5560283A (en) 1996-10-01
JPH08503528A (ja) 1996-04-16
EP0670960B1 (fr) 1996-07-17

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