EP1910691A1 - Unite structurale pour un moteur a combustion interne - Google Patents

Unite structurale pour un moteur a combustion interne

Info

Publication number
EP1910691A1
EP1910691A1 EP06761814A EP06761814A EP1910691A1 EP 1910691 A1 EP1910691 A1 EP 1910691A1 EP 06761814 A EP06761814 A EP 06761814A EP 06761814 A EP06761814 A EP 06761814A EP 1910691 A1 EP1910691 A1 EP 1910691A1
Authority
EP
European Patent Office
Prior art keywords
shaft
bearing
sliding layer
assembly
layer
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Withdrawn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
EP06761814A
Other languages
German (de)
English (en)
Inventor
Wolfgang Issler
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 International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP1910691A1 publication Critical patent/EP1910691A1/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Withdrawn legal-status Critical Current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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/06—Crankshafts
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof

Definitions

  • the present invention relates to a structural unit of an internal combustion engine, having a shaft and at least one further component, wherein the shaft is provided with bearing journals for bearing in corresponding, provided in the at least one component bearing bores.
  • the subject of the present invention is also a shaft and a component for such a structural unit.
  • Such a structural unit may, for example, be a crankshaft mounted in an engine housing with the associated connecting rods or a camshaft mounted in an engine housing.
  • US 6 020 025 A discloses a crankshaft mounted in an engine housing.
  • the bearing journals of the crankshaft are provided with a hard nitride layer.
  • a camshaft is also known, the cam are at least partially coated with a ceramic material.
  • the present invention is based on the object, a unit of o.g. To provide a type that is simpler in design and leads to weight and cost savings.
  • the solution consists in a structural unit with the features of claim 1. According to the invention it is provided that the surface of each journal with a Sliding layer is provided and that the surface of each bearing bore is in direct contact with the sliding layer of the associated journal.
  • the present invention also includes a shaft having the features of claim 7 and a component having the features of claim 11.
  • the inventive design of the assembly and the component eliminates the previously necessary bearings in the bearing pin with the corresponding bearing bores of the component. This not only leads to a considerable structural simplification, but also to a significant weight saving. This weight saving results not only from the elimination of the bearing shells, but also from the fact that the inventive design allows a reduction of the bearing bores at least the wall thickness of the omitted plain bearing shells and thus the outer periphery of the corresponding component. With the elimination of the bearing shells is also a cost savings (assembly, warehousing, part variety) accompanied. For example. For example, an assembly of a crankshaft and associated connecting rods can be designed so that the connecting rods are smaller and lighter than before. This has a positive effect on the dynamic behavior in the mass acceleration during operation of the internal combustion engine. Accordingly, the provided in the motor housing bearing bores for a crankshaft or a camshaft can be made smaller and the components thereby also reduced in mass.
  • the coating of the respective journal of the shaft with the sliding layer can be carried out in one setting, so that the production of the shaft according to the invention is technically and economically feasible.
  • each trunnion may be partially or completely provided with the sliding layer.
  • the sliding layer may in particular be a ceramic, metallic or plastic layer.
  • the surfaces of the bearing bores have a low roughness, possibly also a targeted structuring, in order to further improve the tribological properties of the system sliding layer / bearing bore.
  • the bearing bores may have a selectively manufactured ovality or local diameter differences. The machining of the bore surfaces can be done, for example, by honing.
  • FIG. 1 shows a crankshaft 1 for an internal combustion engine which is mounted in bearings 2 fixed to the housing. On eccentrically arranged shaft journal connecting rods 3 are arranged.
  • the bearings A of the shaft in the housing, the bearings B for the connecting rods and the bearing C to support axial forces according to the invention wear a functional coating that ensures in particular sufficient emergency running under the present at startup of the engine lack lubrication and thus prevents seizure of the parts and which also has sufficient ductility in order to be able to embed any existing abrasion or dirt particles in the oil flow, so that they do not lead to seizure and total failure of storage.
  • the wave-proof coating at said bearing points A, B and C can in the simplest case of the same material or with the same multilayer structure - metallic or polymer overlay 6, possibly separated by an intermediate layer of the sliding bearing material, as shown in Fig. 2 - executed be, but it is also possible in principle, according to the different loads on individual Lagerstellen different coatings, each with different properties, such as strength, ductility, etc. apply.
  • the geometry of the shaft journal can be made slightly spherical before coating or in the opposite case, the bore in the associated bearing point.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Sliding-Contact Bearings (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Unité structurale, par exemple pour un moteur à combustion interne, pourvue d'un arbre et d'au moins un autre élément structural, l'arbre étant pourvu de tourillons destinés à être supportés dans des alésages de roulement correspondant aux tourillons et ménagés dans l'élément structural au moins. Selon la présente invention, la surface d'au moins un tourillon possède une couche de glissement, la surface de chaque alésage de roulement se trouvant en contact direct avec la couche de glissement du tourillon correspondant. La présente invention concerne en outre un arbre et un élément structural pour ladite unité structurale. L'arbre selon la présente invention peut être par exemple un vilebrequin ou un arbre à cames.
EP06761814A 2005-08-06 2006-06-18 Unite structurale pour un moteur a combustion interne Withdrawn EP1910691A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005037206A DE102005037206A1 (de) 2005-08-06 2005-08-06 Baueinheit für einen Verbrennungsmotor
PCT/DE2006/001237 WO2007016892A1 (fr) 2005-08-06 2006-07-18 Unite structurale pour un moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1910691A1 true EP1910691A1 (fr) 2008-04-16

Family

ID=37226421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06761814A Withdrawn EP1910691A1 (fr) 2005-08-06 2006-06-18 Unite structurale pour un moteur a combustion interne

Country Status (8)

Country Link
US (1) US20090290823A1 (fr)
EP (1) EP1910691A1 (fr)
JP (1) JP2009504998A (fr)
CN (1) CN101238298A (fr)
BR (1) BRPI0614375A2 (fr)
DE (1) DE102005037206A1 (fr)
RU (1) RU2413100C2 (fr)
WO (1) WO2007016892A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012351A1 (de) * 2009-03-09 2010-09-16 Magna Powertrain Ag & Co Kg Ausgleichswelleneinheit
DE102010001283A1 (de) * 2010-01-27 2011-09-08 Maschinenfabrik Alfing Kessler Gmbh Kurbelwelle
WO2012069065A1 (fr) * 2010-11-25 2012-05-31 Aktiebolaget Skf (Publ) Palier et procédé d'inhibition de la propagation de fissures dans un élément de palier
FR2988780B1 (fr) * 2012-03-29 2016-01-01 Renault Sas Ensemble de culasse de moteur thermique
US9291192B2 (en) * 2013-06-17 2016-03-22 Mahle International Gmbh Connecting rod with bearing-less large end
DE102015217111A1 (de) * 2015-09-08 2017-03-09 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Lagern eines ersten Bauteils an einem zweiten Bauteil eines Kraftfahrzeugs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247995A (en) * 1936-11-09 1941-07-01 Gilbert Ernst Antifriction journal bearing
JPS55156230U (fr) * 1979-04-25 1980-11-10
DE68912784T2 (de) * 1988-10-26 1994-05-11 Arthur Derrick Bray Graham Pleuellagerung für Sternmotor.
JP3026596B2 (ja) * 1990-11-20 2000-03-27 大同ほくさん株式会社 クランクシヤフトおよびその製法
US6020025A (en) * 1990-11-20 2000-02-01 Daidousanso Co., Ltd. Method of manufacturing a crank shaft
DE19731625A1 (de) * 1997-03-04 1998-09-10 Volkswagen Ag Lagerwerkstoff in einem Pleuelauge
EP0863322B1 (fr) * 1997-03-04 2003-11-05 Volkswagen Aktiengesellschaft Procédé de fabrication d'une bielle
US6379754B1 (en) * 1997-07-28 2002-04-30 Volkswagen Ag Method for thermal coating of bearing layers
JP2002276646A (ja) * 2001-03-16 2002-09-25 Hitachi Ltd ラジアル軸受及びこれを用いた変速機
EP1293689A1 (fr) * 2001-09-18 2003-03-19 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Palier de vilebrequin pour véhicule automobile
CN100482939C (zh) * 2003-12-15 2009-04-29 流体静力设计技术集团有限公司 液压马达/泵
DE102004008728B4 (de) * 2004-02-23 2006-06-29 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Vorrichtung zur Steigerung der Dauerschwingfestigkeit, insbesondere der Biegewechselfestigkeit und der Torsionswechselfestigkeit von Kurbelwellen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007016892A1 *

Also Published As

Publication number Publication date
DE102005037206A1 (de) 2007-02-15
BRPI0614375A2 (pt) 2011-03-22
WO2007016892A1 (fr) 2007-02-15
JP2009504998A (ja) 2009-02-05
US20090290823A1 (en) 2009-11-26
RU2008108301A (ru) 2009-09-20
CN101238298A (zh) 2008-08-06
RU2413100C2 (ru) 2011-02-27

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