EP3073072A2 - Commande de soupape à commande mécanique et système de commande de soupape pouvant être commandé - Google Patents

Commande de soupape à commande mécanique et système de commande de soupape pouvant être commandé Download PDF

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Publication number
EP3073072A2
EP3073072A2 EP15200650.8A EP15200650A EP3073072A2 EP 3073072 A2 EP3073072 A2 EP 3073072A2 EP 15200650 A EP15200650 A EP 15200650A EP 3073072 A2 EP3073072 A2 EP 3073072A2
Authority
EP
European Patent Office
Prior art keywords
arrangement
adjusting member
mechanically controllable
controllable valve
valve drive
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
EP15200650.8A
Other languages
German (de)
English (en)
Other versions
EP3073072A3 (fr
EP3073072B1 (fr
Inventor
Roland Kaiser
Dr. Michael Breuer
Marwan El-Kassem
Dr. Karsten Grimm
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP3073072A2 publication Critical patent/EP3073072A2/fr
Publication of EP3073072A3 publication Critical patent/EP3073072A3/fr
Application granted granted Critical
Publication of EP3073072B1 publication Critical patent/EP3073072B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01L13/0005—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
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F01L2013/001—Deactivating cylinders
    • 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
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/103—Electric motors
    • 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
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values

Definitions

  • the invention relates to a mechanically controllable valve train with at least one gas exchange valve, which acts on the at least one transmission arrangement by means of an end face, wherein the transmission arrangement is movably mounted in the cylinder head by means of bearing means, wherein the transmission arrangement comprises an intermediate lever arrangement and a finger lever arrangement and wherein the transmission arrangement with a Ventilhubverstell listening and a camshaft is in operative connection, wherein guide means are provided for the intermediate lever assembly, wherein the VentilhubverstellISSUNE comprises a rotatable, mounted on an intermediate lever of the intermediate lever assembly adjusting member which acts on the transmission arrangement against a biasing force of a spring member, such that different valve lift positions are adjustable.
  • Valve trains and such valve train arrangements are well known from the prior art.
  • the EP 638 706 A1 to control or regulate the valve lift a rotatably mounted in a cylinder head eccentric shaft, which acts on the transmission arrangement such that in a simple way valve strokes between 0 and can be set to a maximum.
  • the combustion process can be easily adapted to the respective operating state of the internal combustion engine.
  • it is from the DE 10 2004 003 327 A1
  • the EP 1 760 278 A2 a valve train known, which has an eccentric member having different curves, in particular for the partial stroke and the full stroke. A zero-stroke curve is also made possible by the adjustment.
  • the object of the invention is therefore to provide a valve train or a valve train arrangement, the / o.g. Disadvantage in a simple and inexpensive way avoids.
  • the adjusting member has an eccentrically arranged, fixed hereby connected toothed segment, wherein the Ventilhubverstell till comprises an actuator which is operatively connected to the adjusting member.
  • a particularly advantageous embodiment is provided in that the reduction is between 5/1 and 10/1.
  • a small cost-effective actuator with low inertia can be used.
  • this reduces the problem of inertia even further, since the Aktuatorflamiere can reduce.
  • the toothed gear mechanism is constructed from a spur toothed spur gear and a worm gear, wherein a worm gear is provided, the screw gear is in engagement with the toothed segment of the adjusting.
  • the actuator is decoupled from the axial forces on the intermediate shaft.
  • the worm wheel shaft is mounted above and below the adjusting member via bearing means.
  • the guide means consist of a link on which the adjusting member engages.
  • the adjusting member with the exception of the eccentrically arranged toothed segment may have a circular, elliptical or freeform.
  • An even higher rigidity is achieved by the Adjusting member in the region of the toothed segment has sliding members, which are supported on additional guide means.
  • a particularly compact embodiment is made possible by the fact that the actuator is connected via a reduction gear transmission with two adjusting members, wherein a first gear of the actuator meshes with a respective second gear of the worm wheel shaft.
  • FIG. 1 shows an embodiment of a valve train 2 according to the invention of a not shown 4-cylinder in-line engine with two gas inlet valves 4, 6, which are associated with a cylinder, not shown, and are arranged in a cylinder housing part 8.
  • gas inlet valves 4, 6 are assigned in a known manner transmission arrangements 10, 12, wherein the transmission arrangements 10, 12 substantially an intermediate lever and a finger lever assembly 14, 16; 18, 20 have. In each case a drag lever arrangement 18, 20 is in operative connection with a gas exchange valve 4, 6.
  • the transmission assemblies 10, 12 are mounted in a known manner in the cylinder head by means not shown bearing means.
  • the intermediate lever arrangements 14, 16, of which the intermediate levers 22, 24 are shown here, are the transmission arrangements 10, 12 in known manner with a camshaft 26 in operative connection.
  • each intermediate lever assembly 14, 16 and thus each transmission assembly 10, 12 via adjusting 28 (see FIG. 2, 3 ) a VentilhubverstellUNE 30 can be controlled such that a lesser or higher valve lift or even a shutdown (zero stroke) of the gas inlet valves 4, 6 is adjustable.
  • the valve stroke adjusting device 30 consists of an actuator 32, the first gear 34 of which meshes with a respective second gear 36, 38 of a worm shaft 40, 42 and respectively forms a reduction gear 44 with a reduction ratio of 8/1.
  • the worm wheel shafts 40, 42 mesh with their respective screw flights 46, 48, each with a toothed segment 50 of the adjusting member 28 and thus form worm gear 52 from.
  • the toothed segment 50 is fixed, ie non-rotatable, connected to the adjusting member 28. Adjusting member 28 and toothed segment 50 may therefore also be formed in one piece.
  • the Schneckenradwellen 40, 42 are mounted on bearing means 54, 56 above and below the adjusting member 28 in a housing part 60.
  • the housing part 60 also has links 62 for the transmission assemblies 10, 12 and additionally guide means 64 for sliding members 66 (see FIG. 4 ) of the adjusting member 28.
  • a spring means 68 for the intermediate lever assembly 14 is shown.
  • FIG. 2 now shows in a sectional view, the transmission assembly 10 of the valve train 4 in a zero stroke position, that is, regardless of the position of the camshaft 26, which is in operative connection with a first roller member 70, the gas exchange valve 4 remains in the zero stroke.
  • a shift of a working curve 72 which in turn is connected to a second roller member 74 of a drag lever 76 of the drag lever assembly 18, due to an engagement of an eccentric member 78 of the camshaft 26 so no movement of the gas exchange valve 4 to result.
  • the adjusting member 22 is mounted in the present embodiment via its circular periphery 80 in the intermediate lever 22 and has an eccentric sector gear 50 which meshes with the helical gear 46 of the worm wheel shaft 40.
  • the circular circumference 80 of the guide in the gate 62 of the housing part 60 serves. It should be understood, however, that the adjusting member 22 may be mounted in other ways and may also have an elliptical or free-shaped extent.
  • FIG. 3 now shows in a sectional view of the transfer assembly 10 of the valve train 2 from FIG. 2 in a full-stroke position.
  • the actuator 32 has the adjusting member 28 via the spur gear and worm gear 44, 52 rotated counterclockwise, so that in the base circle of the camshaft 26, the working cam 80 rests in a different position on the second roller member 74 of the finger lever 76.
  • An engagement of the eccentric member 78 of the camshaft 26 will have a full stroke deflection of the gas exchange valve 4 result. It should be clear that all intermediate positions between zero stroke and full stroke by means of Ventilhubverstell Hughes 30 are adjustable.
  • FIG. 4 shows in a perspective view the adjusting member 28 with the sliding members 66 in the region of the toothed segment 50, which can be supported on the additional guide means 64.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Mechanically-Actuated Valves (AREA)
EP15200650.8A 2015-03-26 2015-12-17 Commande de soupape à commande mécanique et système de commande de soupape pouvant être commandé Not-in-force EP3073072B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015104633.4A DE102015104633A1 (de) 2015-03-26 2015-03-26 Mechanisch steuerbarer Ventiltrieb sowie mechanisch steuerbare Ventiltriebanordnung

Publications (3)

Publication Number Publication Date
EP3073072A2 true EP3073072A2 (fr) 2016-09-28
EP3073072A3 EP3073072A3 (fr) 2016-11-16
EP3073072B1 EP3073072B1 (fr) 2018-02-28

Family

ID=54850228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15200650.8A Not-in-force EP3073072B1 (fr) 2015-03-26 2015-12-17 Commande de soupape à commande mécanique et système de commande de soupape pouvant être commandé

Country Status (2)

Country Link
EP (1) EP3073072B1 (fr)
DE (1) DE102015104633A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691594A (zh) * 2017-03-31 2018-10-23 马勒国际有限公司 用于内燃机的阀驱动器
WO2021156008A3 (fr) * 2020-02-07 2021-09-16 Eaton Intelligent Power Limited Mécanismes de désactivation de cylindre pour systèmes de commande de soupape à tige de poussée et culbuteurs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638706A1 (fr) 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Dispositif de commande d'actionnement des soupapes d'un moteur à combustion interne
DE102004003327A1 (de) 2004-01-22 2005-09-29 Entec Consulting Gmbh Vorrichtung zur variablen Ventilhubverstellung von Gaswechselventilen einer Verbrennungskraftmaschine
EP1760278A2 (fr) 2005-08-30 2007-03-07 Bayerische Motoren Werke Aktiengesellschaft Système de contrôle de course variable de soupape pour un moteur à combustion
DE102011104548A1 (de) 2011-06-18 2012-12-20 Rolf Jung Vollvariable Hubventilsteuerung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336889B (en) * 1998-04-30 2003-02-05 Rover Group Internal combustion engine
GB2395229A (en) * 2002-11-16 2004-05-19 Mechadyne Plc Engine with variable valve lift and timing mechanism
DE10312958B4 (de) * 2003-03-24 2005-03-10 Thyssen Krupp Automotive Ag Vorrichtung zur vairablen Betätigung der Gaswechselventile von Verbrennungsmotoren und Verfahren zum Betreiben einer derartigen Vorrichtung
US6684832B1 (en) * 2003-04-28 2004-02-03 Roberto Marcelo Codina Oscillating camshaft controlled valve operating device
US8291874B2 (en) * 2008-12-05 2012-10-23 Hyundai Motor Company Apparatus for adjusting deviation of engine and continuously variable valve lift device including the same
DE102011009416B4 (de) * 2011-01-25 2016-11-03 Kolbenschmidt Pierburg Innovations Gmbh Mechanisch steuerbare Ventiltriebanordnung
DE102011106565A1 (de) * 2011-07-05 2013-01-10 Rolf Jung vollvariable Hubventilsteuerung
JP2014202131A (ja) * 2013-04-04 2014-10-27 トヨタ自動車株式会社 可変動弁装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638706A1 (fr) 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Dispositif de commande d'actionnement des soupapes d'un moteur à combustion interne
DE102004003327A1 (de) 2004-01-22 2005-09-29 Entec Consulting Gmbh Vorrichtung zur variablen Ventilhubverstellung von Gaswechselventilen einer Verbrennungskraftmaschine
EP1760278A2 (fr) 2005-08-30 2007-03-07 Bayerische Motoren Werke Aktiengesellschaft Système de contrôle de course variable de soupape pour un moteur à combustion
DE102011104548A1 (de) 2011-06-18 2012-12-20 Rolf Jung Vollvariable Hubventilsteuerung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691594A (zh) * 2017-03-31 2018-10-23 马勒国际有限公司 用于内燃机的阀驱动器
CN108691594B (zh) * 2017-03-31 2022-03-01 马勒国际有限公司 用于内燃机的阀驱动器
WO2021156008A3 (fr) * 2020-02-07 2021-09-16 Eaton Intelligent Power Limited Mécanismes de désactivation de cylindre pour systèmes de commande de soupape à tige de poussée et culbuteurs
CN115053052A (zh) * 2020-02-07 2022-09-13 伊顿智能动力有限公司 用于推杆气门机构系统和摇臂的气缸钝化机构
CN115053052B (zh) * 2020-02-07 2024-01-02 伊顿智能动力有限公司 用于推杆气门机构系统和摇臂的气缸钝化机构
US12025036B2 (en) 2020-02-07 2024-07-02 Eaton Intelligent Power Limited Cylinder deactivation mechanisms for pushrod valve train systems and rocker arms

Also Published As

Publication number Publication date
EP3073072A3 (fr) 2016-11-16
EP3073072B1 (fr) 2018-02-28
DE102015104633A1 (de) 2016-09-29

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