EP2404051B1 - Aus zwei materialien bestehende vorrichtung, gehäuse und mit der vorrichtung versehenes fahrzeug sowie verfahren zur herstellung der vorrichtung - Google Patents

Aus zwei materialien bestehende vorrichtung, gehäuse und mit der vorrichtung versehenes fahrzeug sowie verfahren zur herstellung der vorrichtung Download PDF

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Publication number
EP2404051B1
EP2404051B1 EP10708349.5A EP10708349A EP2404051B1 EP 2404051 B1 EP2404051 B1 EP 2404051B1 EP 10708349 A EP10708349 A EP 10708349A EP 2404051 B1 EP2404051 B1 EP 2404051B1
Authority
EP
European Patent Office
Prior art keywords
insert
pin
bore
joint plane
casing
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.)
Active
Application number
EP10708349.5A
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English (en)
French (fr)
Other versions
EP2404051A1 (de
Inventor
David Lausch
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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.)
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Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2404051A1 publication Critical patent/EP2404051A1/de
Application granted granted Critical
Publication of EP2404051B1 publication Critical patent/EP2404051B1/de
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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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • 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
    • Y10T29/49231—I.C. [internal combustion] engine making
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/47—Molded joint

Definitions

  • the invention relates to a two-component device comprising an insert and a part.
  • the invention also relates to a housing and a vehicle equipped with this device and a method of manufacturing this device.
  • Known two-component devices comprise an insert, a part made of a material different from the insert, this insert and this part being assembled by molding one around the other, the interface between the insert and the part defining at least one joint plane, and a bore for receiving a pin, formed in this device and passing through the joint plane, this bore having an inlet chamfer for guiding the pin to a fitting section of this pin.
  • crankcase a crankcase of a motor is divided into two parts respectively called “crankcase” and “crankcase cap” or “crankcase”.
  • the cap housing includes cast iron inserts forming bearings for the crankshaft.
  • Each insert is embedded in an aluminum part that forms the frame of the hat housing. This assembly of the insert and the aluminum part is obtained by molding the aluminum around the insert.
  • the cast iron has metallurgical characteristics that are different from those of the aluminum part.
  • cast iron and aluminum do not have the same melting point
  • the insert is firmly adhered to the aluminum part, cast iron and aluminum do not mix during the manufacture of the cap. There is therefore an interface between the insert and the aluminum part which defines one or more joint planes between the materials of these elements.
  • Such a device is for example known from DE 102005031038 or DE 100 40 476 C1
  • the invention aims to remedy these problems by providing an improved device to facilitate the fitting of the pin in the bore.
  • the entry chamfer allows a slight lateral movement of the pin during its introduction into the bore. This lateral movement allows to guide and correctly position the pin before tightening in the fitting section.
  • the input chamfer has a diameter strictly greater than the fitting section in which the pin is clamped and therefore to the diameter of the pin.
  • the input chamfer extends beyond the join plane.
  • the diameter of the bore is strictly greater than the diameter of the pin to be introduced. Under these conditions, even if there is a slight shoulder protruding inside the bore at the joint plane, it does not prevent the passage of the pin because the deflection lateral is sufficient. Therefore, in the above device, galling of the pin when introduced into the bore is avoided. Defects of the mounting machine and damage to the engine equipped with this device are also reduced or eliminated.
  • the invention also relates to a casing of a combustion engine of a vehicle equipped with the device above.
  • the invention also relates to a vehicle comprising this housing.
  • the subject of the invention is also a method of manufacturing this two-material device comprising the machining of an input chamfer so that this input chamfer extends beyond the joining plane.
  • the figure 1 represents a vehicle 2 equipped with a casing 4 of a combustion engine.
  • the vehicle 2 is shown schematically by a dotted rectangle.
  • This vehicle 2 is for example a motor vehicle such as a car.
  • the casing 4 comprises an upper part 6 called “cylinder block” and a lower part 8 called “casing cap”. These upper and lower parts are joined to one another at a substantially horizontal assembly plane 10 in the figure 1 .
  • the cylinder block is conventional and will not be described here in more detail.
  • the cap housing 8 comprises an insert 12 embedded without any degree of freedom in a shell 14.
  • the insert 12 forms a bearing of a crankshaft of the combustion engine to be received in the housing 4.
  • the upper part of the insert 12 defines a face 16 in the form of a semicircle. This face 16 is intended to receive the crankshaft rotationally.
  • the insert 12 is made of a very hard material such as cast iron.
  • the insert 12 is traversed vertically by two fixing holes 18 and 20.
  • the ends of these holes 18 and 20 located inside the housing cylinder 6 are threaded. Indeed, these holes 18 and 20 are intended to receive screws fixing the cap housing on the cylinder block.
  • the shell 14 is made of a less hard material than that used to make the insert 12.
  • the shell 14 is made of aluminum.
  • bores 26, 28 are also visible. These bores 26 and 28 are hollowed vertically first in the shell 14 and then in the insert 12 to end in the cylinder block 6. These bores 26, 28 extend along respective vertical axes 30, 32.
  • bores 26 and 28 are identical and only the bore 26 will be described here in detail.
  • the bore 26 extends from bottom to top. It therefore has an opening 34 through which must be introduced the centering pin located at the bottom. Then, going up from this opening 34, the bore 26 has a chamfer 36 input which is extended by a fitting section 38.
  • the chamfer 36 is designed to guide the pin introduced and to align the axis of this pin on the axis 30 before its introduction into the section 38.
  • the inner diameter of the chamfer 36 decreases progressively from the diameter of the opening 34 up to the diameter of section 38.
  • the diameter of the chamfer 36 decreases in steps.
  • the section 38 is intended to retain by clamping the pin introduced into the bore 26.
  • the diameter of the section 38 is chosen to allow a force fit of the pin.
  • the diameter of the section 38 is equal to the diameter of the pin to be introduced.
  • the bore 26 passes through the interface 24 between the shell 14 and the insert 12 at a joint plane 40.
  • this plane 40 is perpendicular to the axis 30.
  • the chamfer 36 extends, upward, beyond the plane 40.
  • the chamfer 36 has an inner diameter ⁇ 1 strictly greater than the inner diameter ⁇ 2 of the section 38.
  • the diameter ⁇ 2 is equal to the diameter of the pin intended to be introduced into the bore 26.
  • a zone F surrounding the intersection of the chamfer 36 with the insert 12 at the plane 40 is shown in enlarged form in FIG.
  • This shoulder 44 protrudes a few hundredths or a few tenths of a millimeter inside the bore 26.
  • the difference between the diameters ⁇ 1 and ⁇ 2 is chosen sufficiently large that the shoulder 44 can not not cause seizing of the pin during its insertion into the bore 26.
  • the difference between the diameters ⁇ 1 and ⁇ 2 is chosen greater than 0.05 mm and preferably greater than 0.5 mm.
  • the hardness of the material of the insert 12 is greater than or equal to the hardness of the material used to make the pin to be introduced.
  • the figure 4 represents the hat cover 8 in perspective. This perspective view shows that the cap housing 8 has several inserts identical to the insert 12.
  • This phase 50 comprises a step 52 during which the aluminum is cast around the insert 12 in a mold to form the shell 14 on which is rigidly fixed insert 12. During this molding step, it is assumed that an air film is present between the insert 12 and the shell 14, which prevents a perfect seal of the insert 12 on the shell 14.
  • the cylinder block 6 is assembled above the cap housing 8 and joined to one another via the assembly plane 10.
  • step 56 the input chamfer 36 and the section 38 are made such that the input chamfer extends beyond the plane 40.
  • phase 60 of the motor assembly is carried out.
  • a step 62 after installing the crankshaft, the cylinder block 6 is centered on the cap housing 8 using, for example, centering pins. Then, during a step 64, centering pins are introduced into the bores 26 and 28 until their ends are fitted inside the sections 38. Therefore, these centering pins are held tight to the inside. inside the bores 26 and 28.
  • the cross section of the bores and centering pins is not necessarily circular.
  • they may be cylindrical but with a director different from a circle.

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)

Claims (10)

  1. Aus zwei Materialien bestehende Vorrichtung, die einen Einsatz (12), ein Teil (14), das aus einem Werkstoff hergestellt ist, der von dem des Einsatzes unterschiedlich ist, wobei dieser Einsatz und dieses Teil durch Formen umeinander zusammengefügt werden, wobei die Schnittstelle zwischen dem Einsatz und dem Teil mindestens eine Fügeebene (40) definiert, und eine Bohrung (26, 28), um einen Stift aufzunehmen, die in dieser Vorrichtung eingerichtet ist und die Fügeebene durchquert, wobei diese Bohrung eine Eingangsabfasung (36) aufweist, um den Stift bis zu einem Aufschrumpfabschnitt (38) dieses Stifts zu führen, dadurch gekennzeichnet, dass sich die Eingangsabfasung (36) über die Fügeebene (40) hinaus erstreckt.
  2. Vorrichtung nach Anspruch 1, bei der die größte Querbreite des Aufschrumpfabschnitts (38) in einer Ebene parallel zu der Fügeebene strikt kleiner ist als die größte Querbreite der Eingangsabfassung (36) in der Fügeebene.
  3. Vorrichtung nach Anspruch 2, bei der der Unterschied zwischen den größten Querbreiten des Aufschrumpfabschnitts und der Eingangsabfasung mindestens größer als 0,05 mm und vorzugsweise größer als 0,5 mm ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der der Einsatz (12) und das Teil (14) aus unterschiedlichen Metallen hergestellt sind.
  5. Vorrichtung nach Anspruch 4, bei der der Einsatz (12) aus Gusseisen und das Teil (14) aus Aluminium hergestellt ist.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der die Vorrichtung auch einen Stift aufweist, der in die Bohrung gepresst ist, wobei dieser Stift aus einem Werkstoff hergestellt ist, dessen Härte kleiner oder gleich ist wie die Härte mindestens eines der Werkstoffe, die zum Herstellen des Einsatzes (12) und des Teils (14) verwendet werden.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der der Einsatz (12) ein Lager einer Kurbelwelle eines Verbrennungsmotors bildet und das Teil (14) einen Teil eines Gehäuses dieses Verbrennungsmotors bildet.
  8. Gehäuse (4) eines Verbrennungsmotors eines Fahrzeugs, dadurch gekennzeichnet, dass es eine Vorrichtung nach einem der vorhergehenden Ansprüche aufweist.
  9. Fahrzeug (2), dadurch gekennzeichnet, dass es ein Gehäuse nach Anspruch 8 aufweist.
  10. Herstellungsverfahren einer Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass dieses Verfahren das Bearbeiten (56) der Eingangsabfasung derart aufweist, dass sich die Eingangsabfasung über die Fügeebene hinaus erstreckt.
EP10708349.5A 2009-03-04 2010-02-15 Aus zwei materialien bestehende vorrichtung, gehäuse und mit der vorrichtung versehenes fahrzeug sowie verfahren zur herstellung der vorrichtung Active EP2404051B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0951346A FR2942732B1 (fr) 2009-03-04 2009-03-04 Dispositif bimatiere, carter et vehicule equipes de ce dispositif et procede de fabrication de ce dispositif
PCT/FR2010/050253 WO2010100356A1 (fr) 2009-03-04 2010-02-15 Dispositif bimatière, carter et véhicule équipes de ce dispositif et procédé fabrication de ce dispositif

Publications (2)

Publication Number Publication Date
EP2404051A1 EP2404051A1 (de) 2012-01-11
EP2404051B1 true EP2404051B1 (de) 2014-12-31

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EP10708349.5A Active EP2404051B1 (de) 2009-03-04 2010-02-15 Aus zwei materialien bestehende vorrichtung, gehäuse und mit der vorrichtung versehenes fahrzeug sowie verfahren zur herstellung der vorrichtung

Country Status (4)

Country Link
US (1) US20110318096A1 (de)
EP (1) EP2404051B1 (de)
FR (1) FR2942732B1 (de)
WO (1) WO2010100356A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8770170B2 (en) * 2012-01-04 2014-07-08 GM Global Technology Operations LLC Bedplate assembly and method
WO2014012661A1 (de) 2012-07-18 2014-01-23 Merck Patent Gmbh Fluortenside
DE102013212165A1 (de) * 2013-06-26 2014-12-31 Volkswagen Aktiengesellschaft Gussgehäuse
US10895276B2 (en) 2018-02-20 2021-01-19 Dana Automotive Systems Group, Llc Two material joint design

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334345U (de) * 1986-08-20 1988-03-05

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DE3423306C2 (de) * 1984-06-23 1986-07-10 Daimler-Benz Ag, 7000 Stuttgart Paßverbindung zwischen zwei Gehäuseteilen
CA1328588C (en) * 1987-05-15 1994-04-19 Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co., Ltd .) Internal combustion engine
US4989806A (en) * 1989-09-21 1991-02-05 Gigatek Memory Systems Tape cartridge housing fastener system
JPH0482421U (de) * 1990-11-28 1992-07-17
US5503490A (en) * 1994-05-13 1996-04-02 United Technologies Corporation Thermal load relief ring for engine case
US5607565A (en) * 1995-03-27 1997-03-04 Coulter Corporation Apparatus for measuring analytes in a fluid sample
US6422755B1 (en) * 1996-05-03 2002-07-23 Gkn Sinter Metals-Germantown, Inc. Precisely repositioning powder metal components
DE19652049C1 (de) * 1996-12-13 1998-07-02 Hatz Motoren Brennkraftmaschine und Verfahren zu deren Herstellung
JP2001200754A (ja) * 2000-01-17 2001-07-27 Honda Motor Co Ltd エンジン
DE10040476C1 (de) * 2000-08-18 2001-08-30 Porsche Ag Kurbelgehäuse für eine Brennkraftmaschine, insbesondere für einen Boxermotor
US20050145060A1 (en) * 2001-02-22 2005-07-07 Weaver Robert R. Engine connecting rod for high performance applications and method of manufacture
JP2004025269A (ja) * 2002-06-27 2004-01-29 Suzuki Motor Corp クランク軸支持装置の製造方法
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Also Published As

Publication number Publication date
US20110318096A1 (en) 2011-12-29
FR2942732B1 (fr) 2011-03-18
WO2010100356A1 (fr) 2010-09-10
FR2942732A1 (fr) 2010-09-10
EP2404051A1 (de) 2012-01-11

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