EP2500533A3 - Combustion engine with mixed cam shaft - Google Patents

Combustion engine with mixed cam shaft Download PDF

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Publication number
EP2500533A3
EP2500533A3 EP12001347A EP12001347A EP2500533A3 EP 2500533 A3 EP2500533 A3 EP 2500533A3 EP 12001347 A EP12001347 A EP 12001347A EP 12001347 A EP12001347 A EP 12001347A EP 2500533 A3 EP2500533 A3 EP 2500533A3
Authority
EP
European Patent Office
Prior art keywords
camshaft
mixed
mixed camshaft
valve
cam
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.)
Granted
Application number
EP12001347A
Other languages
German (de)
French (fr)
Other versions
EP2500533A2 (en
EP2500533B1 (en
Inventor
Axel Groenendijk
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP2500533A2 publication Critical patent/EP2500533A2/en
Publication of EP2500533A3 publication Critical patent/EP2500533A3/en
Application granted granted Critical
Publication of EP2500533B1 publication Critical patent/EP2500533B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • F01L1/026—Gear drive
    • 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
    • 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
    • F01L13/0042—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 being 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • 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
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F01L2001/34486—Location and number of the means for changing the angular relationship
    • 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
    • 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
    • F01L2305/00—Valve arrangements comprising rollers

Landscapes

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

Abstract

Die Erfindung betrifft eine Brennkraftmaschine, insbesondere Dieselmotor, insbesondere eines Kraftfahrzeugs, mit mindestens einem Arbeitszylinder, wobei jedem Arbeitszylinder mindestens zwei Einlassventile (78) und mindestens ein Auslassventil (80) zugeordnet ist, wobei mindestens zwei Nockenwellen (16, 18) vorgesehen sind, von denen wenigstens eine gemischte Nockenwelle (18) sowohl mindestens ein Einlassventil (78) als auch mindestens ein Auslassventil (80) betätigt, wobei an mindestens einer gemischten Nockenwelle (18), die sowohl mindestens ein Einlassventil (78) als auch mindestens ein Auslassventil (80) betätigt, ein Versteller (28) angeordnet ist, welcher Ventilsteuerzeiten der dieser gemischten Nockenwelle (18) zugeordneten Ein- und Auslassventile (78, 80) gegenüber den Ventilsteuerzeiten der mindestens einen anderen Nockenwelle (16) wahlweise nach Früh oder Spät verstellt. Hierbei ist mindestens an der gemischten Nockenwelle (18) mindestens ein Nockenträger (54) vorgesehen, wobei der Nockenträger (54) relativ zu dieser gemischten Nockenwelle (18) drehfest und axial verschiebbar auf der gemischten Nockenwelle (18) angeordnet ist, wobei der mindestens eine Nockenträger (54) mindestens einen Nocken (24, 26) aufweist, auf dem mindestens zwei unterschiedliche Nockenlaufbahnen (60, 62, 64, 66) ausgebildet sind, wobei Mittel (92, 96, 56, 58) zum-axialen Verschieben des mindestens einen Nockenträgers (54) gegenüber der gemischten Nockenwelle (18) zwischen einer ersten axialen Position und mindestens einer zweiten axialen Position vorgesehen sind.

Figure imgaf001
The invention relates to an internal combustion engine, in particular a diesel engine, in particular a motor vehicle, with at least one working cylinder, wherein each working cylinder at least two inlet valves (78) and at least one outlet valve (80) is assigned, wherein at least two camshafts (16, 18) are provided by at least one mixed camshaft (18) actuates both at least one inlet valve (78) and at least one outlet valve (80), wherein at least one mixed camshaft (18) having both at least one inlet valve (78) and at least one outlet valve (80 ), an adjuster (28) is arranged, which valve timing of the mixed camshaft (18) associated with intake and exhaust valves (78, 80) with respect to the valve timing of the at least one other camshaft (16) selectively adjusted to early or late. At least one cam carrier (54) is provided at least on the mixed camshaft (18), wherein the cam carrier (54) is arranged rotatably and axially displaceably on the mixed camshaft (18) relative to this mixed camshaft (18), wherein the at least one Cam carrier (54) at least one cam (24, 26) on which at least two different cam tracks (60, 62, 64, 66) are formed, wherein means (92, 96, 56, 58) for axial displacement of the at least one Cam carrier (54) with respect to the mixed camshaft (18) between a first axial position and at least a second axial position are provided.
Figure imgaf001
EP12001347.9A 2011-03-18 2012-02-29 Combustion engine with mixed cam shaft Active EP2500533B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011014308A DE102011014308A1 (en) 2011-03-18 2011-03-18 Internal combustion engine with mixed camshaft

Publications (3)

Publication Number Publication Date
EP2500533A2 EP2500533A2 (en) 2012-09-19
EP2500533A3 true EP2500533A3 (en) 2013-02-06
EP2500533B1 EP2500533B1 (en) 2014-10-15

Family

ID=45851349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12001347.9A Active EP2500533B1 (en) 2011-03-18 2012-02-29 Combustion engine with mixed cam shaft

Country Status (2)

Country Link
EP (1) EP2500533B1 (en)
DE (1) DE102011014308A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013004800A1 (en) 2013-03-20 2014-09-25 Volkswagen Aktiengesellschaft Internal combustion engine and method for operating such an internal combustion engine
DE102013009896A1 (en) 2013-06-13 2014-12-18 Volkswagen Aktiengesellschaft Internal combustion engine and method for operating such an internal combustion engine
DE102013223646A1 (en) * 2013-11-20 2015-05-21 Volkswagen Aktiengesellschaft Reciprocating internal combustion engine having at least one cylinder comprising at least two intake valves and a variable valve train
JP6070585B2 (en) * 2014-01-21 2017-02-01 マツダ株式会社 Engine valve gear
DE102014008643B4 (en) * 2014-06-13 2022-09-29 Rolls-Royce Solutions GmbH Method for operating an internal combustion engine
DE102018209244A1 (en) 2018-06-11 2019-12-12 Volkswagen Aktiengesellschaft Internal combustion engine with at least one cylinder, at least two camshafts and at least one switchable cam profile

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001042627A1 (en) * 1999-12-13 2001-06-14 Volvo Car Corporation Four-stroke internal combustion engine with variable cam timing
WO2002029214A1 (en) * 2000-09-29 2002-04-11 Edward Charles Mendler Valve control apparatus
WO2006014098A1 (en) * 2004-08-06 2006-02-09 Arnis Treijs Gas-distributing mechanical arrangement automatically changing injection and exhaust gas valve timing
US20070034182A1 (en) * 2004-10-16 2007-02-15 Stefan Dengler Valve train of an internal combustion engine comprising at least one camshaft
EP2048331A2 (en) * 2007-10-12 2009-04-15 Volkswagen Combustion engine with mixed camshafts
DE102007056337A1 (en) * 2007-11-22 2009-05-28 Daimler Ag Valve drive device
DE102008005639A1 (en) * 2008-01-23 2009-07-30 Daimler Ag Valve drive device
EP2264299A2 (en) * 2009-06-15 2010-12-22 Volkswagen AG Method for operating a reciprocating piston combustion engine

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE4230877A1 (en) 1991-09-30 1993-04-01 Volkswagen Ag Control for lift valve with two cams - comprises cam block containing two cams which is axially displaceable but non rotatable peripherally on camshaft
DE4426557A1 (en) 1994-07-27 1996-02-01 Imre Dr Techn Szodfridt Diagonally fitted valve system for engine
DE19908286B4 (en) 1999-02-26 2007-03-01 Dr.Ing.H.C. F. Porsche Ag Variable valve control for internal combustion engines
DE102004011586A1 (en) * 2003-03-21 2004-10-07 Audi Ag Valve gear for internal combustion engine has facility whereby in first and second axial positions of cam carrier first and second stop faces fixed on cam carrier bear against respective first and second stop faces fixed on cylinder head
DE102004005588A1 (en) * 2004-02-04 2005-08-25 Fev Motorentechnik Gmbh Reciprocating engine for a motor vehicle comprises a control device acting on an adjustable additional cam as a control element for changing an opening/closing control time and/or a multivalve opening via a camshaft rotation of a valve
DE102006042912A1 (en) * 2006-09-13 2008-03-27 Volkswagen Ag Internal combustion engine with mixed camshafts
DE102008050776A1 (en) * 2008-10-08 2010-04-15 Daimler Ag Valve drive device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001042627A1 (en) * 1999-12-13 2001-06-14 Volvo Car Corporation Four-stroke internal combustion engine with variable cam timing
WO2002029214A1 (en) * 2000-09-29 2002-04-11 Edward Charles Mendler Valve control apparatus
WO2006014098A1 (en) * 2004-08-06 2006-02-09 Arnis Treijs Gas-distributing mechanical arrangement automatically changing injection and exhaust gas valve timing
US20070034182A1 (en) * 2004-10-16 2007-02-15 Stefan Dengler Valve train of an internal combustion engine comprising at least one camshaft
EP2048331A2 (en) * 2007-10-12 2009-04-15 Volkswagen Combustion engine with mixed camshafts
DE102007056337A1 (en) * 2007-11-22 2009-05-28 Daimler Ag Valve drive device
DE102008005639A1 (en) * 2008-01-23 2009-07-30 Daimler Ag Valve drive device
EP2264299A2 (en) * 2009-06-15 2010-12-22 Volkswagen AG Method for operating a reciprocating piston combustion engine

Also Published As

Publication number Publication date
DE102011014308A1 (en) 2012-09-20
EP2500533A2 (en) 2012-09-19
EP2500533B1 (en) 2014-10-15

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