EP2494177B1 - Kurbelgehäuse - Google Patents

Kurbelgehäuse Download PDF

Info

Publication number
EP2494177B1
EP2494177B1 EP10765383.4A EP10765383A EP2494177B1 EP 2494177 B1 EP2494177 B1 EP 2494177B1 EP 10765383 A EP10765383 A EP 10765383A EP 2494177 B1 EP2494177 B1 EP 2494177B1
Authority
EP
European Patent Office
Prior art keywords
crankcase
chamfer
countersink
cylinder
cylinder bore
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.)
Not-in-force
Application number
EP10765383.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2494177A1 (de
Inventor
Lars Taenzer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP2494177A1 publication Critical patent/EP2494177A1/de
Application granted granted Critical
Publication of EP2494177B1 publication Critical patent/EP2494177B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • 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
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/4927—Cylinder, cylinder head or engine valve sleeve making
    • Y10T29/49272—Cylinder, cylinder head or engine valve sleeve making with liner, coating, or sleeve

Definitions

  • the invention relates to a crankcase for an internal combustion engine with the features of the preamble of patent claim 1.
  • a cylinder crankcase is known, in particular for an internal combustion engine, with at least one cylinder bore for receiving a piston. It is envisaged that the cylinder bore at the cylinder head surface, or the separating surface, of the cylinder crankcase has an inlet chamfer and the cylinder surface is provided with a thermal coating until a transition to the running-in phase.
  • crankcase In the known from the prior art processing, the production of the interface on the crankcase to a cylinder head, simultaneously different materials, the crankcase material and the raceway coating processed. Therefore, it is necessary after the processing of the top surface, or separating surface to the cylinder head back to grind it again, because when milling the cover, or separating particles are dissolved out, which can scratch the top surface or parting unacceptable.
  • a generic crankcase is further from the American patent application US 2006/032473 A1 known. This discloses a crankcase for an internal combustion engine having at least one coated cylinder bore having a chamfer at a parting surface to a cylinder head. Similar crankcases are made US 5199166 or DE102009008741 known. Object of the present invention is to avoid the above drawback.
  • the production according to claim 4 is particularly preferred. This may be, for example, grinding, milling, etc.
  • the chamfer and the countersink are manufactured according to claim 5 in a single operation.
  • the present exemplary embodiment is, for example, a crankcase 1 with three identifiable, coated cylinder bores 2, wherein the embodiment according to the invention can be represented on any desired crankcase for an internal combustion engine with at least one coated cylinder bore 2 ,
  • the crankcase 1 has a separating surface 3 to a cylinder head, not shown.
  • a transition from the cylinder bore 2 is chamfered to the separation surface 3, for better insertion of a piston, not shown (Kolbeneinwovenfase).
  • a countersink 5 is arranged on the chamfer 4.
  • the crankcase 1 is a light metal crankcase, preferably made of a hypoeutectic aluminum-silicon alloy, for example AlSi9Cu3.
  • the cylinder bore 2 is coated, whereby it has on its surface a greater hardness for improved tribology with a piston ring than the remaining material of the crankcase first
  • Fig. 2 shows an enlarged detail of the cylinder bore 2 from Fig. 1 in a two-dimensional sectional view.
  • Fig. 2 is a construction drawing of the chamfer 4 according to the invention with countersink 5.
  • the crankcase 1 is shown hatched and the chamfer 4 is arranged in this embodiment in the cylinder bore 2 only in a coating 6.
  • the chamfer 4 can also extend into the carrier material (here AlSi9Cu3).
  • the chamfer 4 to the cylinder bore 2 at an angle ⁇ between 5 ° and 60 °.
  • the Countersink 5 a depth of at least 0.05 mm and at least 0.1 mm larger diameter than the chamfer 4 on.
  • the chamfer 4 and the countersink 5 machined off, such as by a grinding or milling process, etc.
  • the chamfer 4 and the countersink 5 are made in a single operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP10765383.4A 2009-10-31 2010-10-02 Kurbelgehäuse Not-in-force EP2494177B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009051517A DE102009051517A1 (de) 2009-10-31 2009-10-31 Kurbelgehäuse
PCT/EP2010/006025 WO2011050891A1 (de) 2009-10-31 2010-10-02 Kurbelgehäuse

Publications (2)

Publication Number Publication Date
EP2494177A1 EP2494177A1 (de) 2012-09-05
EP2494177B1 true EP2494177B1 (de) 2017-05-03

Family

ID=43530074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10765383.4A Not-in-force EP2494177B1 (de) 2009-10-31 2010-10-02 Kurbelgehäuse

Country Status (5)

Country Link
US (1) US8683972B2 (zh)
EP (1) EP2494177B1 (zh)
CN (1) CN102656356B (zh)
DE (1) DE102009051517A1 (zh)
WO (1) WO2011050891A1 (zh)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932506A1 (de) * 1979-08-10 1981-02-26 Daimler Benz Ag Abdichtung des oberen bereiches einer nassen zylinderlaufbuchse gegen das kurbelgehaeuse einer hubkolbenbrennkraftmaschine
CH672353A5 (en) * 1987-05-14 1989-11-15 Sulzer Ag Cylinder lining for IC engine - has cylinder wall shoulder, protruding into combustion chamber above top piston ring level
JPH04128539A (ja) * 1990-09-20 1992-04-30 Sanshin Ind Co Ltd エンジンのシリンダブロック
JP3502689B2 (ja) * 1995-03-23 2004-03-02 ヤマハ発動機株式会社 メッキシリンダブロック及びそのメッキ方法
KR980008780U (ko) * 1996-07-08 1998-04-30 김영귀 실린더 헤드의 기밀 유지구조
WO2000037789A1 (de) 1998-12-18 2000-06-29 Volkswagen Aktiengesellschaft Zylindergehäuse und verfahren zur herstellung eines zylindergehäuses
DE10241370B4 (de) * 2002-09-06 2007-09-27 Bayerische Motoren Werke Ag Zylinderkopfdichtung
JP4135634B2 (ja) * 2003-12-25 2008-08-20 三菱自動車工業株式会社 エンジンのシリンダライナ構造
DE102004038183A1 (de) * 2004-08-06 2006-03-16 Daimlerchrysler Ag Verfahren zur Bearbeiten von Zylinderkurbelwellengehäusen mit gespritzten Zylinderlaufbahnen
DE102009008741B4 (de) * 2009-02-12 2014-11-20 Bayerische Motoren Werke Aktiengesellschaft Kurbelgehäuse
US8616175B2 (en) * 2009-05-15 2013-12-31 Douglas A. Pelmear Internal combustion engine and method of operating same

Also Published As

Publication number Publication date
US20120234284A1 (en) 2012-09-20
CN102656356B (zh) 2014-10-22
US8683972B2 (en) 2014-04-01
WO2011050891A1 (de) 2011-05-05
DE102009051517A1 (de) 2011-05-05
CN102656356A (zh) 2012-09-05
EP2494177A1 (de) 2012-09-05

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