WO2004089574A1 - Mecanisme d'entrainement variable pour arbre a cames - Google Patents

Mecanisme d'entrainement variable pour arbre a cames Download PDF

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Publication number
WO2004089574A1
WO2004089574A1 PCT/EP2004/003524 EP2004003524W WO2004089574A1 WO 2004089574 A1 WO2004089574 A1 WO 2004089574A1 EP 2004003524 W EP2004003524 W EP 2004003524W WO 2004089574 A1 WO2004089574 A1 WO 2004089574A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
extruded
blank
rotor
continuously cast
Prior art date
Application number
PCT/EP2004/003524
Other languages
German (de)
English (en)
Inventor
Kai Lehmann
Jens-Uwe Plank
Jörg RÖSENER
Holger Rudzinski
Original Assignee
Daimlerchrysler 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
Priority claimed from DE102004011659A external-priority patent/DE102004011659A1/de
Application filed by Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Priority to JP2006504972A priority Critical patent/JP2006524574A/ja
Publication of WO2004089574A1 publication Critical patent/WO2004089574A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • B23P13/04—Making metal objects by operations essentially involving machining but not covered by a single other subclass involving slicing of profiled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a method for producing a component for motor vehicles from a continuous casting or extrusion of a metal alloy.
  • valve drive of a motor vehicle is known, the rotor and housing of which are made from an extruded aluminum alloy.
  • the pressing is cut to the desired length and then processed in a cutting and polishing process.
  • the invention is based on the object of designing and arranging a production method in such a way that rapid and cost-effective production is ensured.
  • the object is achieved in that a component blank is produced by dividing the extruded part or profile or the extruded part or profile and the component blank is cut to the required dimension in a forming process before or after the parting by means of a die Component is calibrated.
  • the shaping of the component blank to the finished dimension of the component is achieved by a cold press or cold molding process, a semi-hot press or semi-hot molding process or a hot press or hot molding process.
  • the forming process can take place when the component blank is cold. It is also envisaged to reshape the component blank in a heated state within the die, taking into account the thermal expansion.
  • an additional possibility is that the component blank and / or the die are wetted with lubricant at least in partial areas of the surfaces in contact with one another before calibration.
  • lubricants ensures a wear-free forming process, so that cold welding processes between the component and the die are prevented.
  • the component or the die are wetted or coated with lubricants at least in the critical area of the corresponding surfaces that supports a cold welding process.
  • oil, solid lubricant and / or plastic is used as the lubricant.
  • solid lubricants such as grease or sprayable plastic lubricants ensure the forming process without cold welding processes. It is also advantageous for this that the size of the component is at least partially formed by a forming process that takes place after the manufacturing process of the component blank.
  • the forming process is much easier and faster to design than a cutting or grinding process.
  • the component thus formed has the required tolerance dimensions. i ⁇
  • the component is designed as a rotor or as a rotor housing for a camshaft adjuster.
  • the rotor preferably has four vanes which are arranged uniformly distributed over the circumference with respect to a central axis.
  • the housing preferably has four recesses for the wings, which are distributed uniformly over the circumference with respect to a central axis. During operation, the angular position of the respective wing within the recess is changed with respect to the central axis.
  • the components 1 and 2 shown here are a housing 1 which accommodates a rotor 2. Both the housing 1 and the rotor 2 are coaxial with one Camshaft not shown or arranged coaxially to the camshaft central axis 3. The rotor 2 and the housing 1 are operatively connected via radially extending surfaces 1.3, 2.3.
  • An adjusting mechanism not shown, changes the relative angular position between the rotor 2 and the housing 1 with respect to the central axis 3 during operation.
  • the rotor 2 has four vanes 1.2-1.2 '' 'which are arranged within corresponding recesses 2.2-2.2' '' of the rotor housing 2, a different number of vanes with corresponding recesses being conceivable.
  • the dimensions of the wings 1.2 and the recesses 2.2 are important, which after the continuous casting are shaped or calibrated to the finished size by means of a forming process with the aid of a die.

Abstract

La présente invention concerne un procédé pour produire des composants (1, 2) par extrusion ou coulée continue. Ces composants (1, 2) sont calibrés au moyen d'une matrice à la valeur de tolérance nécessaire, afin d'être définis dans un processus de formage. Selon cette invention, un lubrifiant se trouve entre le composant (1, 2) et la matrice.
PCT/EP2004/003524 2003-04-05 2004-04-02 Mecanisme d'entrainement variable pour arbre a cames WO2004089574A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006504972A JP2006524574A (ja) 2003-04-05 2004-04-02 カム軸用可変駆動装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10315595.3 2003-04-05
DE10315595 2003-04-05
DE102004011659A DE102004011659A1 (de) 2003-04-05 2004-03-10 Variabler Antrieb für Nockenwelle
DE102004011659.8 2004-03-10

Publications (1)

Publication Number Publication Date
WO2004089574A1 true WO2004089574A1 (fr) 2004-10-21

Family

ID=33160608

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/003524 WO2004089574A1 (fr) 2003-04-05 2004-04-02 Mecanisme d'entrainement variable pour arbre a cames

Country Status (2)

Country Link
JP (1) JP2006524574A (fr)
WO (1) WO2004089574A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7610885B2 (en) 2005-09-23 2009-11-03 Neumayer Tekfor Holding Gmbh Variable drive for camshafts

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216158A1 (de) * 1992-05-15 1993-11-18 Walter E Spaeth Verfahren zur Herstellung einer Radschüssel und Radschüssel, welche nach dem Verfahren hergestellt ist
WO1998025715A2 (fr) * 1996-12-10 1998-06-18 Aluminum Company Of America Procede de production d'une piece metallique forgee
US5924199A (en) * 1996-04-30 1999-07-20 General Motors Corporation Steering wheel insert
US6094815A (en) * 1998-02-16 2000-08-01 Zexel Corporation Method of manufacturing rotor for a vane compressor
US20020038501A1 (en) * 2000-10-04 2002-04-04 Kazutoshi Iwasaki Method for manufacturing valve timing adjusting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216158A1 (de) * 1992-05-15 1993-11-18 Walter E Spaeth Verfahren zur Herstellung einer Radschüssel und Radschüssel, welche nach dem Verfahren hergestellt ist
US5924199A (en) * 1996-04-30 1999-07-20 General Motors Corporation Steering wheel insert
WO1998025715A2 (fr) * 1996-12-10 1998-06-18 Aluminum Company Of America Procede de production d'une piece metallique forgee
US6094815A (en) * 1998-02-16 2000-08-01 Zexel Corporation Method of manufacturing rotor for a vane compressor
US20020038501A1 (en) * 2000-10-04 2002-04-04 Kazutoshi Iwasaki Method for manufacturing valve timing adjusting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7610885B2 (en) 2005-09-23 2009-11-03 Neumayer Tekfor Holding Gmbh Variable drive for camshafts

Also Published As

Publication number Publication date
JP2006524574A (ja) 2006-11-02

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