WO2013091744A8 - Ventiltrieb für eine brennkraftmaschine - Google Patents

Ventiltrieb für eine brennkraftmaschine Download PDF

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Publication number
WO2013091744A8
WO2013091744A8 PCT/EP2012/004136 EP2012004136W WO2013091744A8 WO 2013091744 A8 WO2013091744 A8 WO 2013091744A8 EP 2012004136 W EP2012004136 W EP 2012004136W WO 2013091744 A8 WO2013091744 A8 WO 2013091744A8
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
cam
combustion engine
valve drive
camshaft
Prior art date
Application number
PCT/EP2012/004136
Other languages
English (en)
French (fr)
Other versions
WO2013091744A1 (de
Inventor
Thomas Stolk
Alexander Von Gaisberg-Helfenberg
Original Assignee
Daimler 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 Daimler Ag filed Critical Daimler Ag
Publication of WO2013091744A1 publication Critical patent/WO2013091744A1/de
Publication of WO2013091744A8 publication Critical patent/WO2013091744A8/de

Links

Classifications

    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0476—Camshaft bearings
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Es ist bekannt unterschiedliche Nockenkonturen (4a, 4b, 4c; 5a, 5b, 5c) durch axiales Verschieben von Nockenträgern (2) auf der Nockenwelle (1) einzustellen. Dabei sind die Nockenträger (2) zylindermittig durch ein Nockenwellenlager (7) gelagert. Nachteilig ist dabei, dass der Verschiebeweg und somit die Anzahl der Nockenkonturen (4a, 4b, 4c; 5a, 5b, 5c) begrenzt ist und die Lagerbreite nicht optimal ausgelegt werden kann. Zur Verbesserung hinsichtlich der oben genannten Nachteile wird vorgeschlagen, dass die Nockenträger (2) durch ein Nockenwellenlager (7), welches einen zur Zylindermitte (M) definierten Versatz (a) hat, gelagert werden. Die Erfindung ist für Ventiltriebe für Brennkraftmaschinen vorgesehen.
PCT/EP2012/004136 2011-12-22 2012-10-02 Ventiltrieb für eine brennkraftmaschine WO2013091744A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110122451 DE102011122451A1 (de) 2011-12-22 2011-12-22 Ventiltrieb für eine Brennkraftmaschine
DE102011122451.7 2011-12-22

Publications (2)

Publication Number Publication Date
WO2013091744A1 WO2013091744A1 (de) 2013-06-27
WO2013091744A8 true WO2013091744A8 (de) 2013-09-06

Family

ID=46980883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/004136 WO2013091744A1 (de) 2011-12-22 2012-10-02 Ventiltrieb für eine brennkraftmaschine

Country Status (2)

Country Link
DE (1) DE102011122451A1 (de)
WO (1) WO2013091744A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014014282B4 (de) 2014-09-27 2021-01-21 Daimler Ag Ventiltrieb für eine Brennkraftmaschine
DE102017210661A1 (de) 2017-06-23 2018-12-27 Volkswagen Aktiengesellschaft Ventiltriebvorrichtung für eine mehrzylindrige Brennkraftmaschine
DE102022117337A1 (de) 2022-07-12 2024-01-18 Bayerische Motoren Werke Aktiengesellschaft Schaltnockenwelleneinrichtung für eine Verbrennungskraftmaschine, Verbrennungskraftmaschine mit einer Schaltnockenwelleneinrichtung und Kraftfahrzeug mit einer Verbrennungskraftmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180017A (ja) * 1983-03-31 1984-10-12 Yamaha Motor Co Ltd 頭上弁式内燃機関のカム軸受構造
DE102007010156A1 (de) 2007-03-02 2008-09-04 Audi Ag Ventiltrieb einer Brennkraftmaschine mit mehrstufigen Nockenprofilgruppen und Stellorganen mit mindestens zwei Eingriffselementen
DE102007051739A1 (de) * 2007-10-30 2009-05-07 Schaeffler Kg Ventiltrieb einer Brennkraftmaschine
DE102010013216B4 (de) * 2009-04-04 2022-04-28 Schaeffler Technologies AG & Co. KG Ventiltrieb einer Brennkraftmaschine
DE102010012471A1 (de) * 2010-03-24 2011-09-29 Schaeffler Technologies Gmbh & Co. Kg Stellvorrichtung
DE102011109676A1 (de) * 2011-08-08 2012-02-09 Daimler Ag Brennkraftmaschine mit mindestens einem Zylinderkopf

Also Published As

Publication number Publication date
DE102011122451A1 (de) 2013-06-27
WO2013091744A1 (de) 2013-06-27

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