EP1760278A3 - Lift-variable valve-operating system for internal combustion engine - Google Patents

Lift-variable valve-operating system for internal combustion engine Download PDF

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Publication number
EP1760278A3
EP1760278A3 EP06014987A EP06014987A EP1760278A3 EP 1760278 A3 EP1760278 A3 EP 1760278A3 EP 06014987 A EP06014987 A EP 06014987A EP 06014987 A EP06014987 A EP 06014987A EP 1760278 A3 EP1760278 A3 EP 1760278A3
Authority
EP
European Patent Office
Prior art keywords
lift
combustion engine
internal combustion
operating system
adjusting device
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.)
Withdrawn
Application number
EP06014987A
Other languages
German (de)
French (fr)
Other versions
EP1760278A2 (en
Inventor
Franz Kreil
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 EP1760278A2 publication Critical patent/EP1760278A2/en
Publication of EP1760278A3 publication Critical patent/EP1760278A3/en
Withdrawn legal-status Critical Current

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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
    • F01L13/0063—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • F01L13/0063—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • F01L2013/0068—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "BMW-Valvetronic" type

Abstract

Hubvariabler Ventiltrieb (1) für eine Brennkraftmaschine mit zumindest zwei Zylindern mit gleichwirkenden Gaswechselventilen (6), wobei jedem Zylinder zumindest eine Gaswechselventil-Betätigungseinheit (1') zugeordnet ist, bestehend aus einem Zwischenhebel (2), wobei eine erste Stellvorrichtung (7) zum Drehen des Zwischenhebels (2) um einen kulissennahen Punkt (8) vorgesehen ist, wobei der Zwischenhebel (2) mit einer zweiten Stellvorrichtung (10) entlang einer Kulissenbahn (3a) verschiebbar ist, wobei die zweite Stellvorrichtung (10) zumindest einen ersten Einstellpunkt für einen Teilhub und zumindest einen zweiten Einstellpunkt für einen Vollhub und einen dritten Einstellpunkt für einen Nullhub des Gaswechselventils (6) aufweist.

Figure imgaf001
Hubvariabler valve train (1) for an internal combustion engine having at least two cylinders with the same effect gas exchange valves (6), each cylinder at least one gas exchange valve operating unit (1 ') is assigned, consisting of an intermediate lever (2), wherein a first adjusting device (7) for Turning the intermediate lever (2) is provided to a point close to the stage (8), wherein the intermediate lever (2) with a second adjusting device (10) along a slide track (3a) is displaceable, wherein the second adjusting device (10) at least a first set point for a partial lift and at least a second set point for a full lift and a third set point for a zero lift of the gas exchange valve (6).
Figure imgaf001
EP06014987A 2005-08-30 2006-07-19 Lift-variable valve-operating system for internal combustion engine Withdrawn EP1760278A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510040959 DE102005040959A1 (en) 2005-08-30 2005-08-30 Hubvariabler valve drive for an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1760278A2 EP1760278A2 (en) 2007-03-07
EP1760278A3 true EP1760278A3 (en) 2010-03-10

Family

ID=37499693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06014987A Withdrawn EP1760278A3 (en) 2005-08-30 2006-07-19 Lift-variable valve-operating system for internal combustion engine

Country Status (2)

Country Link
EP (1) EP1760278A3 (en)
DE (1) DE102005040959A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047480A1 (en) * 2008-09-17 2010-04-15 Bayerische Motoren Werke Aktiengesellschaft Variable stroke valve drive for adjusting stroke of gas shuttle valve in cylinder head of internal-combustion engine, has pivoted lever displaced by eccentric shaft, and spring whose coil is arranged radially around eccentric shaft
DE102010048709B4 (en) 2010-10-19 2013-01-03 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve drive and mechanically controllable valve train arrangement
DE102010062319B4 (en) * 2010-12-02 2023-04-20 Bayerische Motoren Werke Aktiengesellschaft Cylinder deactivation in an internal combustion engine with variable valve lift
DE102010054520A1 (en) 2010-12-15 2012-06-21 Bayerische Motoren Werke Aktiengesellschaft Four stroke-reciprocating piston-internal combustion engine has one and another cylinder and one and another piston, which are driven in lifting motion by crank mechanism
DE102011003898B4 (en) 2011-02-10 2021-09-09 Schaeffler Technologies AG & Co. KG Intermediate lever
DE102011014744B4 (en) 2011-03-22 2015-04-30 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve drive and mechanically controllable valve train arrangement
DE102012001633A1 (en) 2012-01-30 2013-08-01 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve train arrangement
DE102012002026A1 (en) * 2012-02-03 2013-08-08 Volkswagen Aktiengesellschaft Variable-stroke valve drive for internal combustion engine, has eccentric shaft with eccentric cams having angular range, in which stroke of valve and of similar valve group vary differently from each other
DE102012006983A1 (en) * 2012-04-05 2013-10-10 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve train arrangement, internal combustion engine and a method for operating an internal combustion engine
DE102013106646A1 (en) * 2013-06-25 2015-01-08 Pierburg Gmbh Spring arrangement for a variable valve train of an internal combustion engine
DE102013113815A1 (en) 2013-12-11 2015-06-11 Pierburg Gmbh Transmission arrangement for a mechanically controllable valve train
DE102014217531A1 (en) 2014-09-03 2016-03-17 Ford Global Technologies, Llc Valve lift control device with cylinder deactivation
DE102014114396A1 (en) 2014-10-02 2016-04-07 Pierburg Gmbh Mechanically controllable valve drive and mechanically controllable valve train arrangement
DE102015104633A1 (en) 2015-03-26 2016-09-29 Pierburg Gmbh Mechanically controllable valve drive and mechanically controllable valve train arrangement
DE102015219875A1 (en) 2015-10-14 2017-04-20 Bayerische Motoren Werke Aktiengesellschaft Control shaft for intake valve deactivation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223172C1 (en) * 1992-07-15 1993-08-19 Bayerische Motoren Werke Ag, 8000 Muenchen, De Cylinder head for IC engine - bearing cover for cam shaft bearing also acts for bearing for eccentric shaft
US5373818A (en) * 1993-08-05 1994-12-20 Bayerische Motoren Werke Ag Valve gear assembly for an internal-combustion engine
EP1143118A2 (en) * 2000-04-07 2001-10-10 Bayerische Motoren Werke Aktiengesellschaft Device for varying the valve lift in an engine cylinder head
DE10123186A1 (en) * 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Valve gear device for variable lift adjustment is for gas exchange valve of internal combustion engine and has valve vai intermediary of transmission component effectively connected to roller movable around rotary axis
DE10235401A1 (en) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Lift stroke-variable valve gear for cylinder head of internal combustion engine has second pivoting lever installed stationary on first lever to form one-piece and material uniform double lever arrangement
EP1445434A1 (en) * 2003-02-04 2004-08-11 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine with valve lift adjustment
WO2004088094A2 (en) * 2003-03-29 2004-10-14 Hydraulik-Ring Gmbh Variable valve lift device for the lift adjustment of gas-exchange valves of an internal combustion engine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629881A1 (en) * 1996-07-24 1998-01-29 Bayerische Motoren Werke Ag Valve train of an internal combustion engine with rocker arms supported on an eccentric shaft
DE10052811A1 (en) * 2000-10-25 2002-05-08 Ina Schaeffler Kg Variable valve train for load control of a spark ignition internal combustion engine
ES2185519T3 (en) * 2001-05-03 2005-03-16 Sts System Technology Services Gmbh MECHANICAL REGULATION OF THE RUNNING VALVE OF A COMBUSTION ENGINE.
DE10205216B4 (en) * 2002-02-08 2006-04-27 Robert Bosch Gmbh Actuator with variable stroke for an oscillating component
DE10248959B4 (en) * 2002-10-21 2004-07-15 Rolf Jung Valve train of an internal combustion engine with variable valve lift
DE10312959B4 (en) * 2003-03-24 2006-10-05 Thyssenkrupp Automotive Ag Device for the variable actuation of gas exchange valves of internal combustion engines
DE10314683B4 (en) * 2003-03-29 2009-05-07 Entec Consulting Gmbh Variable valve lift control for a combustion engine with a bottom camshaft
DE10341702A1 (en) * 2003-09-10 2005-04-28 Bayerische Motoren Werke Ag Valve drive mechanism for a lifting-piston internal combustion engine has a cam device to activate a gas shuttle valve in accordance with the cam device
DE102004021646A1 (en) * 2004-05-03 2005-12-01 Bayerische Motoren Werke Ag Adjusting shaft of a variable-stroke valve drive
DE102004035005A1 (en) * 2004-07-20 2006-02-16 Bayerische Motoren Werke Ag Valve gear of an internal combustion engine
DE202004016360U1 (en) * 2004-08-20 2005-02-17 Jung, Rolf Completely-variable five-section valve gear for internal combustion engine, includes guide rocker, moving connection adjuster, control pawl and cam track
DE202004019202U1 (en) * 2004-12-01 2005-02-10 Jung, Rolf Fully variable lifting valve controller for combustion engine has intermediate element with rocker arm interacting with pawl in pivotable manner at coupling axis, acted upon by cam/camshaft at engagement surface, control block at free end

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223172C1 (en) * 1992-07-15 1993-08-19 Bayerische Motoren Werke Ag, 8000 Muenchen, De Cylinder head for IC engine - bearing cover for cam shaft bearing also acts for bearing for eccentric shaft
US5373818A (en) * 1993-08-05 1994-12-20 Bayerische Motoren Werke Ag Valve gear assembly for an internal-combustion engine
EP1143118A2 (en) * 2000-04-07 2001-10-10 Bayerische Motoren Werke Aktiengesellschaft Device for varying the valve lift in an engine cylinder head
DE10123186A1 (en) * 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Valve gear device for variable lift adjustment is for gas exchange valve of internal combustion engine and has valve vai intermediary of transmission component effectively connected to roller movable around rotary axis
DE10235401A1 (en) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Lift stroke-variable valve gear for cylinder head of internal combustion engine has second pivoting lever installed stationary on first lever to form one-piece and material uniform double lever arrangement
EP1445434A1 (en) * 2003-02-04 2004-08-11 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine with valve lift adjustment
WO2004088094A2 (en) * 2003-03-29 2004-10-14 Hydraulik-Ring Gmbh Variable valve lift device for the lift adjustment of gas-exchange valves of an internal combustion engine

Also Published As

Publication number Publication date
DE102005040959A1 (en) 2007-03-08
EP1760278A2 (en) 2007-03-07

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