EP1760278A2 - Système de contrôle de course variable de soupape pour un moteur à combustion - Google Patents

Système de contrôle de course variable de soupape pour un moteur à combustion Download PDF

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Publication number
EP1760278A2
EP1760278A2 EP06014987A EP06014987A EP1760278A2 EP 1760278 A2 EP1760278 A2 EP 1760278A2 EP 06014987 A EP06014987 A EP 06014987A EP 06014987 A EP06014987 A EP 06014987A EP 1760278 A2 EP1760278 A2 EP 1760278A2
Authority
EP
European Patent Office
Prior art keywords
gas exchange
curve
valve
point
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Withdrawn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
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German (de)
English (en)
Other versions
EP1760278A3 (fr
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/fr
Publication of EP1760278A3 publication Critical patent/EP1760278A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a variable-stroke valve drive for an internal combustion engine having the features of the preamble of patent claim 1.
  • valve drive device for variable stroke adjustment of a gas exchange valve of an internal combustion engine is described.
  • the gas exchange valve with the interposition of the role of a roller drag or roller rocker arm with a pivot lever in operative connection, the gas exchange valve side has a control track with a Operahubkurve and a lift curve.
  • the pivot lever On the side facing away from the gas exchange valve, the pivot lever is slidably mounted on a slide on a slide.
  • the pivoting lever is displaceable on the roller near the stage by means of an adjusting device along the slide track in order to set a valve lift.
  • the roller center of the supported on the backdrop role the backdrop is a circular path with a radius "R" to the Rotary axis of the roller of the roller drag or roller rocker arm.
  • the described valve drive device can be assigned to all cylinders (intake and / or exhaust gas changeover valves) of the same type acting all cylinders of the internal combustion engine.
  • the object is to develop a generic valve train for an internal combustion engine with a cylinder deactivation.
  • the second adjusting device may be a cam according to claim 2, wherein a previously unused curve section a Nullhubkontur having.
  • slide solutions such as linear slides, can also be realized as adjusting devices.
  • the positional shift of the intermediate lever can be represented for example hydraulically and / or electromechanically by the linear movement of a slider or actuator.
  • the embodiment according to claim 3 provides the simplest form of manufacturing a cam for a variable stroke valve drive according to the invention. Furthermore, a harmonious transition between the different operating modes, partial load full load cylinder deactivation is achieved.
  • the proposed embodiment two modes of the fully variable valve train are possible.
  • Both proposed variants each offer specific advantages. If the changeover takes place from the second curve section to the third curve section, ie at the maximum gas exchange valve lift, the internal combustion engine is temporarily throttled in this area via a separate throttle element, such as a throttle flap. This form of shutdown of individual cylinders brings particular acoustic benefits. The easier switching takes place from the first curve section to the third curve section.
  • a disadvantage of this embodiment is the short stroke transition from the partial stroke in the zero stroke, which can be realized only in a certain time window of about 300 ms. During this short period of time, the rotational speed of the internal combustion engine drops approximately to idling speed, whereby a transition to the cylinder deactivation, which is comparatively unstable for the first variant, takes place.
  • the embodiment according to claim 4 allows the optimal stroke control of the gas exchange valve.
  • the arrangement of the second adjusting devices to a common shaft according to claim 5 reduces the manufacturing cost and thus the cost of the valve gear according to the invention.
  • FIG. 1 shows a section through a variable-stroke valve drive 1 according to the invention for an internal combustion engine, with a view of a first gas exchange valve actuating unit 1 ', as can be better seen in FIG. 2, almost completely covering a second gas exchange valve actuating unit 1' according to the prior art , Structure and function are identical for both gas exchange valve actuation units 1 ', 1'bis to the inventive design.
  • Each gas exchange valve actuating unit 1 ', 1' is provided for the actuation of an equivalent gas exchange valve 6 of the internal combustion engine.
  • the arranged in a cylinder head 11 stroke variable valve train 1 consists essentially of an intermediate lever 2, which is on the one hand with a roller slidably mounted on a slide track 3 'a link 3 and on the other hand has a working curve 4, in a Sectionhubkurve 4' and a full lift curve 'split, the working curve 4 via a Intermediate element 5, a roller rocker arm, is in operative connection with a gas exchange valve 6. Furthermore, a first adjusting device 7, a cam of a camshaft, for rotating the intermediate lever 2 about a point close to the point 8, a center of rotation of the roller supported on the link, against a spring force of a spring element 9 is provided.
  • the intermediate lever 2 is displaceable with a second adjusting device 10, a cam, along the slide track 3 'via the roller supporting the intermediate lever 2 on the slide.
  • a second adjusting device 10 is a contour of a known from the prior art second adjusting device 10 'a second gas exchange valve actuator unit 1' recognizable.
  • the second adjusting device 10 has a first setpoint for a partial lift and a second setpoint for a full lift and a third setpoint for a zero lift of the gas exchange valve 6.
  • Each set point is represented by a curve point of a circular segment of the cam.
  • the cam is divided into a first curve section 12, a second curve section 13 and a third curve section 14.
  • the first set point is a first curve point 12 'on the outer circumference of the first curve section 12 and corresponds to a partial lift of the gas exchange valve 6.
  • the second set point is a second curve point 13' on the outer circumference of the second curve section 13 'and corresponds to a full lift of the gas exchange valve 6.
  • Der third set point is a third curve point 14 'on the outer circumference of the third curve section 14 and corresponds to a zero stroke or decommissioning of the gas exchange valve 6.
  • the second adjusting device 10 can also be replaced by linear adjusting devices which have different stops or latching devices, corresponding to the zero stroke, the partial stroke and the full stroke of the gas exchange valve 6.
  • the third curved section 14 merges continuously into the first curved section 12 and the second curved section 13. As described above, this allows two different modes of operation with their respective specific advantages.
  • FIG. 2 shows the top view of a stroke-variable valve drive 1 according to the invention for an internal combustion engine with two intake gas exchange valves and two exhaust gas exchange valves per cylinder. Shown is a section of the cylinder head 11, inlet side with a first gas exchange valve actuating unit 1 'with two inventively designed second adjusting devices 10, and two second adjusting devices 10' for a second not shown in detail Gas exchange valve actuating unit 1 ', as known from the prior art.
  • the second adjusting devices 10, 10 ' are arranged on a common shaft 15 and are each provided for an inlet gas exchange valve.
  • the cylinder head On the exhaust side, the cylinder head on a conventional valve train, which will not be further discussed.
  • the second adjusting devices 10 have a first curved section 12, a second curved section 13 and a third curved section 14.
  • the structural overhead for decommissioning defined gas exchange valves 6, preferably the intake gas exchange valves, is very low.
  • the outlet gas exchange valves with the proposed embodiment can be shut down.
  • other, cheaper funds for decommissioning can be used, for example, switchable hydraulic valve clearance compensation elements or shift cam followers or other switching elements.
  • Another advantage of the embodiment of the invention lies in the fact that even in the state of the cylinder deactivation, the load control can be represented by a variability of the intake gas exchange valve. This means over "black and white" methods, only full stroke or zero stroke of the gas exchange valves 6, an additional fuel saving potential.
  • the control contour on the second actuator 10 is extended according to the invention in a simple manner in the embodiment. This is done by an extension of the effective angle range of the control contour of the second control element 10.
  • the usual working range on the eccentric cam of the second actuator 10 is limited to less than or equal to 180 °.
  • the working curve range By extending the working curve range to greater than 180 °, ie up to 360 °, it is achieved that the gas exchange valves of the cylinders to be shut down can be shut down, whereas the gas exchange valves 6 of the non-shutdown cylinder maintain their full Hubvariabiltician.
  • this can be done for example by the introduction of further stops or locking devices.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP06014987A 2005-08-30 2006-07-19 Système de contrôle de course variable de soupape pour un moteur à combustion Withdrawn EP1760278A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510040959 DE102005040959A1 (de) 2005-08-30 2005-08-30 Hubvariabler Ventiltrieb für eine Brennkraftmaschine

Publications (2)

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

Family

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Family Applications (1)

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EP06014987A Withdrawn EP1760278A3 (fr) 2005-08-30 2006-07-19 Système de contrôle de course variable de soupape pour un moteur à combustion

Country Status (2)

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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048709A1 (de) 2010-10-19 2012-04-19 Kolbenschmidt Pierburg Innovations Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung
WO2012126648A1 (fr) 2011-03-22 2012-09-27 Kolbenschmidt Pierburg Innovations Gmbh Entraînement de soupapes à commande mécanique et système d'entraînement de soupapes à commande mécanique
WO2013113425A1 (fr) * 2012-01-30 2013-08-08 Kolbenschmidt Pierburg Innovations Gmbh Ensemble de commande de soupapes pouvant être actionné mécaniquement
WO2013149737A1 (fr) * 2012-04-05 2013-10-10 Kolbenschmidt Pierburg Innovations Gmbh Système de distribution à commande mécanique, moteur à combustion interne et procédé pour faire fonctionner un moteur à combustion interne
DE102013113815A1 (de) 2013-12-11 2015-06-11 Pierburg Gmbh Übertragungsanordnung für einen mechanisch steuerbaren Ventiltrieb
DE102014114396A1 (de) 2014-10-02 2016-04-07 Pierburg Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung
EP3073072A2 (fr) 2015-03-26 2016-09-28 Pierburg GmbH Commande de soupape à commande mécanique et système de commande de soupape pouvant être commandé
US10450907B2 (en) 2014-09-03 2019-10-22 Ford Global Technologies, Llc Valve lift control device with cylinder deactivation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047480A1 (de) * 2008-09-17 2010-04-15 Bayerische Motoren Werke Aktiengesellschaft Hubvariabler Ventiltrieb für einen Zylinderkopf einer Brennkraftmaschine
DE102010062319B4 (de) * 2010-12-02 2023-04-20 Bayerische Motoren Werke Aktiengesellschaft Zylinderabschaltung bei einem Verbrennungsmotor mit hubvariablen Ventilen
DE102010054520A1 (de) 2010-12-15 2012-06-21 Bayerische Motoren Werke Aktiengesellschaft Viertakt-Hubkolben-Brennkraftmaschine
DE102011003898B4 (de) 2011-02-10 2021-09-09 Schaeffler Technologies AG & Co. KG Zwischenhebel
DE102012002026A1 (de) * 2012-02-03 2013-08-08 Volkswagen Aktiengesellschaft Variabler Ventiltrieb mit Zylinderabschaltung für einen Verbrennungsmotor sowie Verfahren zur Steuerung des Ventiltriebs eines Verbrennungsmotors
DE102013106646A1 (de) 2013-06-25 2015-01-08 Pierburg Gmbh Federanordnung für einen variablen Ventiltrieb einer Verbrennungskraftmaschine
DE102015219875A1 (de) * 2015-10-14 2017-04-20 Bayerische Motoren Werke Aktiengesellschaft Steuerwelle zur Einlassventilabschaltung

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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 (fr) * 2000-04-07 2001-10-10 Bayerische Motoren Werke Aktiengesellschaft Dispositif pour varier la levée d'une soupape dans la culasse d'un moteurà combustion interne
DE10123186A1 (de) * 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine
DE10235401A1 (de) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Hubvariabler Ventiltrieb
EP1445434A1 (fr) * 2003-02-04 2004-08-11 Bayerische Motoren Werke Aktiengesellschaft Moteur à combustion interne avec soupapes à levée variable
WO2004088094A2 (fr) * 2003-03-29 2004-10-14 Hydraulik-Ring Gmbh Dispositif de poussoir a soupape variable utilise pour ajuster les soupapes d'echange de gaz dans un moteur a combustion interne

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DE10052811A1 (de) * 2000-10-25 2002-05-08 Ina Schaeffler Kg Variabler Ventiltrieb zur Laststeuerung einer fremdgezündeten Brennkraftmaschine
ATE272787T1 (de) * 2001-05-03 2004-08-15 Sts System Technology Services Mechanische regelung der hubverstellung des einlassventils eines verbrennungsmotors
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DE10248959B4 (de) * 2002-10-21 2004-07-15 Rolf Jung Ventiltrieb einer Brennkraftmaschine mit variablen Ventilhub
DE10312959B4 (de) * 2003-03-24 2006-10-05 Thyssenkrupp Automotive Ag Vorrichtung zur variablen Betätigung der Gaswechselventile von Verbrennungsmotoren
DE10314683B4 (de) * 2003-03-29 2009-05-07 Entec Consulting Gmbh Variable Ventilhubsteuerung für einen Verbrennungsmotor mit untenliegender Nockenwelle
DE10341702A1 (de) * 2003-09-10 2005-04-28 Bayerische Motoren Werke Ag Ventiltrieb für eine Hubkolben-Brennkraftmaschine
DE102004021646A1 (de) * 2004-05-03 2005-12-01 Bayerische Motoren Werke Ag Verstellwelle eines hubvariablen Ventiltriebs
DE102004035005A1 (de) * 2004-07-20 2006-02-16 Bayerische Motoren Werke Ag Ventiltrieb einer Brennkraftmaschine
DE202004016360U1 (de) * 2004-08-20 2005-02-17 Jung, Rolf Vollvariabler fünfgliedriger Ventiltrieb einer Brennkraftmaschine
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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 (fr) * 2000-04-07 2001-10-10 Bayerische Motoren Werke Aktiengesellschaft Dispositif pour varier la levée d'une soupape dans la culasse d'un moteurà combustion interne
DE10123186A1 (de) * 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine
DE10235401A1 (de) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Hubvariabler Ventiltrieb
EP1445434A1 (fr) * 2003-02-04 2004-08-11 Bayerische Motoren Werke Aktiengesellschaft Moteur à combustion interne avec soupapes à levée variable
WO2004088094A2 (fr) * 2003-03-29 2004-10-14 Hydraulik-Ring Gmbh Dispositif de poussoir a soupape variable utilise pour ajuster les soupapes d'echange de gaz dans un moteur a combustion interne

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012052216A1 (fr) 2010-10-19 2012-04-26 Kolbenschmidt Pierburg Innovations Gmbh Distribution à commande mécanique et ensemble de distribution à commande mécanique
DE102010048709B4 (de) * 2010-10-19 2013-01-03 Kolbenschmidt Pierburg Innovations Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung
DE102010048709A1 (de) 2010-10-19 2012-04-19 Kolbenschmidt Pierburg Innovations Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung
US8807104B2 (en) 2010-10-19 2014-08-19 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve operating mechanism, and mechanically controllable valve operating mechanism arrangement
US9133737B2 (en) 2011-03-22 2015-09-15 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve drive and mechanically controllable valve drive arrangement
WO2012126648A1 (fr) 2011-03-22 2012-09-27 Kolbenschmidt Pierburg Innovations Gmbh Entraînement de soupapes à commande mécanique et système d'entraînement de soupapes à commande mécanique
DE102011014744A1 (de) 2011-03-22 2012-09-27 Kolbenschmidt Pierburg Innovations Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung
WO2013113425A1 (fr) * 2012-01-30 2013-08-08 Kolbenschmidt Pierburg Innovations Gmbh Ensemble de commande de soupapes pouvant être actionné mécaniquement
CN104066938A (zh) * 2012-01-30 2014-09-24 科尔本施密特皮尔伯格创新股份有限公司 可机械控制的气门传动装置
CN104066938B (zh) * 2012-01-30 2016-09-07 科尔本施密特皮尔伯格创新股份有限公司 可机械控制的气门传动装置
US9145798B2 (en) 2012-01-30 2015-09-29 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve drive arrangement
WO2013149737A1 (fr) * 2012-04-05 2013-10-10 Kolbenschmidt Pierburg Innovations Gmbh Système de distribution à commande mécanique, moteur à combustion interne et procédé pour faire fonctionner un moteur à combustion interne
JP2015512489A (ja) * 2012-04-05 2015-04-27 コルベンシュミット ピアブルク イノヴェイションズ ゲゼルシャフト ミット ベシュレンクテル ハフツングＫｏｌｂｅｎｓｃｈｍｉｄｔ Ｐｉｅｒｂｕｒｇ Ｉｎｎｏｖａｔｉｏｎｓ ＧｍｂＨ 機械的に制御可能な動弁アセンブリ、内燃機関ならびに該内燃機関を運転する方法
US9157381B2 (en) 2012-04-05 2015-10-13 Kolbenschmidt Pierburg Innovations Gmbh Mechanically controllable valve train assembly, internal combustion engine and method for operating an internal combustion engine
CN104271902A (zh) * 2012-04-05 2015-01-07 科尔本施密特皮尔伯格创新股份有限公司 机械式可控的气门传动装置、内燃机以及用于运行内燃机的方法
EP2834483B1 (fr) * 2012-04-05 2019-03-13 Kolbenschmidt Pierburg Innovations GmbH Ensemble de commande de soupape mecanique, moteur, et procédé de command d'un tel moteur
EP2905437A2 (fr) 2013-12-11 2015-08-12 Pierburg GmbH Système de transmission pour une commande de soupape pouvant être commandée mécaniquement
DE102013113815A1 (de) 2013-12-11 2015-06-11 Pierburg Gmbh Übertragungsanordnung für einen mechanisch steuerbaren Ventiltrieb
US9464540B2 (en) 2013-12-11 2016-10-11 Pierburg Gmbh Transfer assembly for a mechanically controllable valve train
US10450907B2 (en) 2014-09-03 2019-10-22 Ford Global Technologies, Llc Valve lift control device with cylinder deactivation
DE102014114396A1 (de) 2014-10-02 2016-04-07 Pierburg Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung
EP3006684A1 (fr) 2014-10-02 2016-04-13 Pierburg GmbH Commande de soupape a commande mecanique et systeme de commande de soupape pouvant etre commande
EP3073072A2 (fr) 2015-03-26 2016-09-28 Pierburg GmbH Commande de soupape à commande mécanique et système de commande de soupape pouvant être commandé
DE102015104633A1 (de) 2015-03-26 2016-09-29 Pierburg Gmbh Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung

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EP1760278A3 (fr) 2010-03-10
DE102005040959A1 (de) 2007-03-08

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