EP1143118A2 - Device for varying the valve lift in an engine cylinder head - Google Patents

Device for varying the valve lift in an engine cylinder head Download PDF

Info

Publication number
EP1143118A2
EP1143118A2 EP01106205A EP01106205A EP1143118A2 EP 1143118 A2 EP1143118 A2 EP 1143118A2 EP 01106205 A EP01106205 A EP 01106205A EP 01106205 A EP01106205 A EP 01106205A EP 1143118 A2 EP1143118 A2 EP 1143118A2
Authority
EP
European Patent Office
Prior art keywords
cam
lever
control shaft
cylinder head
shaft
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
EP01106205A
Other languages
German (de)
French (fr)
Other versions
EP1143118A3 (en
EP1143118B1 (en
Inventor
Werner Rottstegge
Andreas Wolf
Johannes Meyer
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 EP1143118A2 publication Critical patent/EP1143118A2/en
Publication of EP1143118A3 publication Critical patent/EP1143118A3/en
Application granted granted Critical
Publication of EP1143118B1 publication Critical patent/EP1143118B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F01L13/0021—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 rocker arm ratio
    • 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 preamble of claim 1 Device for stroke adjustment of a gas exchange valve in the cylinder head Internal combustion engine, one interacting with the gas exchange valve
  • the transmission element is in line contact with an idle stroke curve and one Stroke curve control path on one lever, the other Lever end in line contact is with a cam on one in the cylinder head controlled rotatable and fixable control shaft, one in the cylinder head for Control shaft camshaft arranged in parallel via a cam on a cam track acts on the swivel lever to actuate the gas exchange valve.
  • Such a device is known for example from DE 42 23 172 C1.
  • the to achieve a variable stroke - zero stroke to full stroke - from Cam of a camshaft pivoted swivel lever in its free Lever end adjacent to the line contact with a stroke adjustment Cam is guided over a slot on a bolt fixed to the housing.
  • this slotted hole guide many swivel levers on a common guide pin or common guide rod a multi-cylinder internal combustion engine increased friction with the danger a tilt of the swivel lever (s).
  • a common Guide rod for the swivel levers of similar gas exchange valves a cylinder row in an internal combustion engine requires an increased space.
  • the invention is based, for a device for stroke adjustment the task a gas exchange valve a space-saving construction while avoiding the Point out the danger of the tilting lever tilting due to friction.
  • the invention advantageously takes up less installation space Device for stroke adjustment of a gas exchange valve achieved, with a friction Canting of the swivel lever guided according to the invention by means of a relatively simple design of the support surfaces on the shaft sections of the Tax wave is achieved.
  • the background of the spherically designed support surfaces is that the backdrops of the swivel lever are completed in one operation and thus the same Contour and same angle errors.
  • the ones that interact with the scenery Support surfaces of the shaft sections are in two successive Work steps completed, with a cylindrical design of the shaft sections or the support surfaces are different diameters and different or can even result in opposite conicity. Because of these different Contours of the support surfaces can be in cooperation with the associated Backdrops occur that the swivel lever is skewed occurs or that there is a one-sided carrying one of the scenes of the pivot lever results or that eventually even edge beams occur.
  • the support surfaces have a Show crowning of approx. 10 - 15 ⁇ m.
  • the swivel levers advantageously carry only in Area of the support surface of the backdrop and not on its edges. This allows the otherwise wear does not occur because the point of contact of the two Gliding partners quickly by smoothing the surfaces to a touch ellipse expands long until the occurring Hertzian pressures are safely borne can.
  • a device 1 for stroke adjustment of a section only shown Gas exchange valve 2 in a cylinder head 3, only indicated, one not shown Internal combustion engine comprises one which interacts with the gas exchange valve 2 Transmission element 4, which is in line contact via a roller 5 with a control path 6 comprising an idle stroke curve 6 ′ and a stroke curve 6 ′′ a swivel lever 7.
  • the swivel lever 7 projects from the other end 8 of the lever a rolling element 8 'in line contact with one of the stroke settings of the gas exchange valve 2 serving cam 9 on a controlled rotating in the cylinder head 3 and fixable control shaft 10, which has a parallel arranged in the cylinder head 3, Not shown camshaft is associated with a cam at 11 on a Roller 12 acts on the pivot lever 7 for actuating the stroke of the gas exchange valve 2.
  • pivotable arrangement of the pivot lever 7 is this on the one hand during a cam-controlled and against one only in sections Return spring 13 caused pivoting movement over the Line end of the rolling element 8 'on the lever end with the cam plate 9 and Furthermore, with support surfaces 14 on shaft sections 15 of the control shaft 10 on both sides the cam 9 on the other hand interacting slidably Swivel lever scenes 16 performed.
  • the support surfaces 14 advantageously have a crown of approximately 10-15 ⁇ m.

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

The device (1) has a transmission element (4) co-operating with the gas shuttle valve (2) and contacting a control track (6) of a pivot lever (7) that has an empty stroke curve (6') and a stroke curve (6''). The other lever end (8) contacts a cam disc (9) on a control shaft (10) that is controlled to rotate or be fixed in a cylinder head (3). A camshaft in the cylinder head parallel to the control shaft acts over a cam on a curve track at the pivot lever to operate the gas shuttle valve. The pivot lever is guided on one side during a cam-controlled pivot movement against a readjusting spring (13) over the lever end contacting the cam disc. The pivot lever is further guided on the other side over the control shaft with support surfaces (14) at shaft sections (15) of the control shaft on both sides of the cam disc to move slidingly and co-operate with a pivot lever slideway (16). The support faces of the shaft section of the control shaft are spherical.

Description

Die Erfindung bezieht sich nach dem Oberbegriff des Patentanspruches 1 auf eine Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine, wobei ein mit dem Gaswechselventil zusammenwirkendes Übertragungselement in Linienberührung steht mit einer eine Leerhubkurve und eine Hubkurve umfassenden Steuerbahn an einem Schwenkhebel, der am anderen Hebelende in Linienberührung steht mit einer Kurvenscheibe auf einer im Zylinderkopf gesteuert dreh- und fixierbaren Steuerwelle, wobei eine im Zylinderkopf zur Steuerwelle parallel angeordnete Nockenwelle über einen Nocken auf eine Kurvenbahn am Schwenkhebel zur Hubbetätigung des Gaswechselventils einwirkt.The invention relates to a preamble of claim 1 Device for stroke adjustment of a gas exchange valve in the cylinder head Internal combustion engine, one interacting with the gas exchange valve The transmission element is in line contact with an idle stroke curve and one Stroke curve control path on one lever, the other Lever end in line contact is with a cam on one in the cylinder head controlled rotatable and fixable control shaft, one in the cylinder head for Control shaft camshaft arranged in parallel via a cam on a cam track acts on the swivel lever to actuate the gas exchange valve.

Eine derartige Vorrichtung ist beispielsweise aus der DE 42 23 172 C1 bekannt. Hierbei ist der zur Erzielung eines variablen Hubes - Null-Hub bis Voll-Hub - vom Nocken einer Nockenwelle verschwenkte Schwenkhebel in seinem freien Hebelende benachbart der Linienberührung mit einer der Hubeinstellung dienenden Kurvenscheibe über ein Langloch an einem gehäusefesten Bolzen geführt. Wie insbesondere aus den Figuren der weiteren DE 43 26 331 A1 zu einer bauartgleichen Vorrichtung ersichtlich, ergibt sich mit dieser Langlochführung vieler Schwenkhebel auf einem gemeinsamen Führungsbolzen bzw. gemeinsamen Führungsstange bei einer mehrzylindrigen Brennkraftmaschine eine erhöhte Reibung mit der Gefahr einer Verkantung des/der Schwenkhebel. Weiter ist mit der Anordnung einer gemeinsamen Führungsstange für die Schwenkhebel gleichartiger Gaswechselventile einer Zylinderreihe in einer Brennkraftmaschine ein erhöhter Platzbedarf erforderlich.Such a device is known for example from DE 42 23 172 C1. Here is the to achieve a variable stroke - zero stroke to full stroke - from Cam of a camshaft pivoted swivel lever in its free Lever end adjacent to the line contact with a stroke adjustment Cam is guided over a slot on a bolt fixed to the housing. How in particular from the figures of the further DE 43 26 331 A1 to an identical design Device visible, results with this slotted hole guide many swivel levers on a common guide pin or common guide rod a multi-cylinder internal combustion engine increased friction with the danger a tilt of the swivel lever (s). Next is the arrangement of a common Guide rod for the swivel levers of similar gas exchange valves a cylinder row in an internal combustion engine requires an increased space.

Der Erfindung liegt die Aufgabe zugrunde, für eine Vorrichtung zur Hubverstellung eines Gaswechselventils eine bauraumsparende Konstruktion unter Vermeidung der Gefahr einer reibungsbehafteten Verkantung des Schwenkhebels aufzuzeigen.The invention is based, for a device for stroke adjustment the task a gas exchange valve a space-saving construction while avoiding the Point out the danger of the tilting lever tilting due to friction.

Diese Aufgabe ist mit dem Patentanspruch 1 dadurch gelöst, dass der Schwenkhebel einerseits während einer nockengesteuerten und gegen eine Rückstellfeder bewirkten Schwenkbewegung über die hebelendseitige Linienberührung mit der Kurvenscheibe und ferner über mit Stützflächen an Wellenabschnitten der Steuerwelle beiderseits der Kurvenscheibe andererseits gleitbeweglich zusammenwirkenden Schwenkhebel-Kulissen geführt ist, wobei die mit den Schwenkhebel-Kulissen zusammenwirkenden Stützflächen der Wellenabschnitte der Steuerwelle ballig ausgebildet sind.This object is achieved with claim 1 in that the pivot lever on the one hand during a cam-controlled and against a return spring caused pivoting movement on the lever end line contact with the Cam and further over with support surfaces on shaft sections of the control shaft on both sides of the cam on the other hand interacting slidably Swivel lever scenes is guided, with the swivel lever scenes cooperating support surfaces of the shaft sections of the control shaft spherical are.

Mit der Erfindung ist in vorteilhafter Weise eine weniger Bauraum beanspruchende Vorrichtung zur Hubverstellung eines Gaswechselventils erzielt, wobei eine reibungsbehaftete Verkantung des erfindungsgemäß geführten Schwenkhebels mittels einer relativ einfachen Gestaltung der Stützflächen an den Wellenabschnitten der Steuerwelle erzielt ist.The invention advantageously takes up less installation space Device for stroke adjustment of a gas exchange valve achieved, with a friction Canting of the swivel lever guided according to the invention by means of a relatively simple design of the support surfaces on the shaft sections of the Tax wave is achieved.

Hintergrund der erfindungsgemäß ballig gestalteten Stützflächen ist, dass die Kulissen des Schwenkhebels in einem Arbeitsgang fertiggestellt sind und somit die gleiche Kontur und gleiche Winkelfehler aufweisen. Die mit den Kulissen zusammenwirkenden Stützflächen der Wellenabschnitte werden in zwei aufeinanderfolgenden Arbeitsschritten fertiggestellt, wobei bei einer zylindrischen Gestaltung der Wellenabschnitte bzw. der Stützflächen sich unterschiedliche Durchmesser sowie unterschiedliche oder sogar gegenläufige Konizitäten ergeben können. Durch diese unterschiedlichen Konturen der Stützflächen kann es im Zusammenwirken mit den zugehörigen Kulissen dazu kommen, dass eine Schiefstellung des Schwenkhebels eintritt oder dass sich ein einseitiges Tragen einer der Kulissen des Schwenkhebels ergibt oder dass schließlich sogar Kantenträger auftreten. Diese Nachteile sind mit der erfindungsgemäßen balligen Ausgestaltung der Stützflächen an den Wellenabschnitten der Steuerwelle für die Schwenkhebel-Kulissen mit Sicherheit vermieden. Mit der erfindungsgemäßen Gestaltung wird nämlich zwischen den Kulissen des Schwenkhebels und den Stützflächen der Steuerwelle ein definierter günstiger Auflagepunkt ohne scharfe Kanten und Übergänge geschaffen, der sich während der Einlaufphase zu einer Berührellipse ausdehnen kann.The background of the spherically designed support surfaces is that the backdrops of the swivel lever are completed in one operation and thus the same Contour and same angle errors. The ones that interact with the scenery Support surfaces of the shaft sections are in two successive Work steps completed, with a cylindrical design of the shaft sections or the support surfaces are different diameters and different or can even result in opposite conicity. Because of these different Contours of the support surfaces can be in cooperation with the associated Backdrops occur that the swivel lever is skewed occurs or that there is a one-sided carrying one of the scenes of the pivot lever results or that eventually even edge beams occur. These disadvantages are with the spherical configuration of the support surfaces according to the invention on the shaft sections the control shaft for the swivel lever linkage is definitely avoided. With the design according to the invention is namely between the scenes the pivot lever and the support surfaces of the control shaft a defined more favorable Point of contact created without sharp edges and transitions, which during can expand the running-in phase to a touch ellipse.

In Ausgestaltung der Erfindung wird vorgeschlagen, dass die Stützflächen eine Balligkeit von ca. 10 - 15 µm aufweisen.In an embodiment of the invention it is proposed that the support surfaces have a Show crowning of approx. 10 - 15 µm.

Durch diese geringe Balligkeit tragen die Schwenkhebel vorteilhafterweise nur im Bereich der Auflagefläche der Kulisse und nicht an deren Kanten. Dadurch kann der sonst stattfindende Verschleiß nicht auftreten, weil sich der Berührpunkt der beiden Gleitpartner durch Glättungen der Oberflächen schnell zu einer Berührellipse so lange ausdehnt, bis die auftretenden Hertz'schen Pressungen sicher ertragen werden können.Due to this slight crowning, the swivel levers advantageously carry only in Area of the support surface of the backdrop and not on its edges. This allows the otherwise wear does not occur because the point of contact of the two Gliding partners quickly by smoothing the surfaces to a touch ellipse expands long until the occurring Hertzian pressures are safely borne can.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben. Es zeigt

Figur 1
eine erfindungsgemäße Vorrichtung zur Hubverstellung eines Gaswechselventils in perspektivischer Ansicht,
Figur 2
einen Schwenkhebel nach Figur 1 in perspektivischer Darstellung.
The invention is described with reference to an embodiment shown in the drawing. It shows
Figure 1
a device according to the invention for stroke adjustment of a gas exchange valve in a perspective view,
Figure 2
a pivot lever according to Figure 1 in perspective.

Eine Vorrichtung 1 zur Hubverstellung eines lediglich abschnittsweise dargestellten Gaswechselventils 2 in einem lediglich angedeuteten Zylinderkopf 3 einer nicht gezeigten Brennkraftmaschine umfasst ein mit dem Gaswechselventil 2 zusammenwirkendes Übertragungselement 4, das über eine Rolle 5 in Linienberührung steht mit einer eine Leerhubkurve 6' und eine Hubkurve 6" umfassenden Steuerbahn 6 an einem Schwenkhebel 7. Der Schwenkhebel 7 steht am anderen Hebelende 8 über einen Wälzkörper 8' in Linienberührung mit einer der Hubeinstellung des Gaswechselventils 2 dienenden Kurvenscheibe 9 auf einer im Zylinderkopf 3 gesteuert dreh- und fixierbaren Steuerwelle 10, der im Zylinderkopf 3 eine parallel angeordnete, nicht gezeigte Nockenwelle zugeordnet ist, die mit einem Nocken bei 11 auf eine Rolle 12 am Schwenkhebel 7 zur Hubbetätigung des Gaswechselventils 2 einwirkt.A device 1 for stroke adjustment of a section only shown Gas exchange valve 2 in a cylinder head 3, only indicated, one not shown Internal combustion engine comprises one which interacts with the gas exchange valve 2 Transmission element 4, which is in line contact via a roller 5 with a control path 6 comprising an idle stroke curve 6 ′ and a stroke curve 6 ″ a swivel lever 7. The swivel lever 7 projects from the other end 8 of the lever a rolling element 8 'in line contact with one of the stroke settings of the gas exchange valve 2 serving cam 9 on a controlled rotating in the cylinder head 3 and fixable control shaft 10, which has a parallel arranged in the cylinder head 3, Not shown camshaft is associated with a cam at 11 on a Roller 12 acts on the pivot lever 7 for actuating the stroke of the gas exchange valve 2.

Zur Bauraum sparenden, schwenkbeweglichen Anordnung des Schwenkhebels 7 ist dieser einerseits während einer nockengesteuerten und gegen eine lediglich abschnittsweise dargestellte Rückstellfeder 13 bewirkten Schwenkbewegung über die hebelendseitige Linienberührung des Wälzkörpers 8' mit der Kurvenscheibe 9 und ferner über mit Stützflächen 14 an Wellenabschnitten 15 der Steuerwelle 10 beiderseits der Kurvenscheibe 9 andererseits gleitbeweglich zusammenwirkenden Schwenkhebel-Kulissen 16 geführt.For the space-saving, pivotable arrangement of the pivot lever 7 is this on the one hand during a cam-controlled and against one only in sections Return spring 13 caused pivoting movement over the Line end of the rolling element 8 'on the lever end with the cam plate 9 and Furthermore, with support surfaces 14 on shaft sections 15 of the control shaft 10 on both sides the cam 9 on the other hand interacting slidably Swivel lever scenes 16 performed.

Weiter sind zur Vermeidung reibungsbehafteter Verkantungen des Schwenkhebels 7 die mit den Schwenkhebel-Kulissen 16 zusammenwirkenden Stützflächen 14 der Wellenabschnitte 15 der Steuerwelle 10 ballig ausgebildet, wie dies in Figur 1 bei 17 unmaßstäblich dargestellt ist.Next are to avoid jamming of the swivel lever 7, the cooperating with the pivot lever scenes 16 support surfaces 14 of the Shaft sections 15 of the control shaft 10 are spherical, as shown in FIG. 1 at 17 is shown to scale.

Vorteilhafterweise weisen die Stützflächen 14 eine Balligkeit von ca. 10 - 15 µm auf.The support surfaces 14 advantageously have a crown of approximately 10-15 μm.

Weiter hat sich in vorteilhafter Weise herausgestellt, dass es genügt, wenn sich die balligen Stützflächen 14 jeweils von der benachbarten Kurvenscheibe 9 ausgehend jeweils über einen wesentlichen Teil des Wellenabschnittes 15 erstrecken.It has also been found in an advantageous manner that it is sufficient if the crowned support surfaces 14 each starting from the adjacent cam 9 each extend over a substantial part of the shaft section 15.

Claims (3)

Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine, wobei ein mit dem Gaswechselventil (2) zusammenwirkendes Übertragungselement (4) in Linienberührung steht mit einer eine Leerhubkurve (6') und eine Hubkurve (6") umfassenden Steuerbahn (6) an einem Schwenkhebel (7), der am anderen Hebelende (8) in Linienberührung (bei 8') steht mit einer Kurvenscheibe (9) auf einer im Zylinderkopf (3) gesteuert dreh- und fixierbaren Steuerwelle (10), wobei eine im Zylinderkopf (3) zur Steuerwelle (10) parallel angeordnete Nockenwelle über einen Nocken auf eine Kurvenbahn (Rolle 12) am Schwenkhebel (7) zur Hubbetätigung des Gaswechselventils (2) einwirkt, dadurch gekennzeichnet, dass der Schwenkhebel (7) einerseits während einer nockengesteuerten und gegen eine Rückstellfeder (13) bewirkten Schwenkbewegung über die hebelendseitige Linienberührung (bei 8') mit der Kurvenscheibe (9) und ferner über mit Stützflächen (14) an Wellenabschnitten (15) der Steuerwelle (10) beiderseits der Kurvenscheibe (9) andererseits gleitbeweglich zusammenwirkenden Schwenkhebel-Kulissen (16) geführt ist, wobei die mit den Schwenkhebel-Kulissen (16) zusammenwirkenden Stützflächen (14) der Wellenabschnitte (15) der Steuerwelle (10) ballig ausgebildet sind. Device for stroke adjustment of a gas exchange valve in the cylinder head of an internal combustion engine, wherein a transmission element (4) cooperating with the gas exchange valve (2) is in line contact with a control path (6) comprising an idle stroke curve (6 ') and a stroke curve (6 ") on a swivel lever (7) which at the other end of the lever (8) in line contact (at 8 ') stands with a cam disc (9) on a control shaft (10) which can be rotated and fixed in the cylinder head (3), whereby a camshaft arranged in parallel in the cylinder head (3) with the control shaft (10) acts via a cam on a cam track (roller 12) on the swivel lever (7) for actuating the gas exchange valve (2), characterized, that the swivel lever (7) on the one hand during a cam-controlled swivel movement caused against a return spring (13) via the lever end line contact (at 8 ') with the cam disc (9) and Furthermore, with pivot surfaces (14) on shaft sections (15) of the control shaft (10) on both sides of the cam plate (9) on the other hand, slidably interacting pivoting link guides (16) are guided, whereby the supporting surfaces (14) of the shaft sections (15) of the control shaft (10) which cooperate with the pivoting lever links (16) are spherical. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stützflächen (14) eine Balligkeit von ca. 10 - 15 µm aufweisen.Apparatus according to claim 1, characterized in that the support surfaces (14) have a crown of approximately 10-15 µm. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die balligen Stützflächen (14) jeweils von der benachbarten Kurvenscheibe (9) ausgehend jeweils über einen wesentlichen Teil des Wellenabschnittes (15) erstrecken.Device according to claim 1 or 2, characterized in that the spherical support surfaces (14) each extend from the adjacent cam disc (9) over a substantial part of the shaft section (15).
EP01106205A 2000-04-07 2001-03-14 Device for varying the valve lift in an engine cylinder head Expired - Lifetime EP1143118B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10017441A DE10017441A1 (en) 2000-04-07 2000-04-07 Device for stroke adjustment of a gas exchange valve in the cylinder head of an internal combustion engine
DE10017441 2000-04-07

Publications (3)

Publication Number Publication Date
EP1143118A2 true EP1143118A2 (en) 2001-10-10
EP1143118A3 EP1143118A3 (en) 2002-11-13
EP1143118B1 EP1143118B1 (en) 2003-08-13

Family

ID=7638002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106205A Expired - Lifetime EP1143118B1 (en) 2000-04-07 2001-03-14 Device for varying the valve lift in an engine cylinder head

Country Status (3)

Country Link
EP (1) EP1143118B1 (en)
DE (2) DE10017441A1 (en)
ES (1) ES2204773T3 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1387050A1 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Cylinder head for an internal combustion engine with variable lift valve drive
EP1387049A1 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive
WO2004057160A1 (en) * 2002-12-21 2004-07-08 Ina-Schaeffler Kg Intermediate lever for a variable valve drive of an internal combustion engine
EP1496211A1 (en) * 2003-07-08 2005-01-12 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive
EP1619361A1 (en) * 2003-05-01 2006-01-25 Yamaha Hatsudoki Kabushiki Kaisha Valve-moving device for engine
EP1619360A1 (en) * 2003-05-01 2006-01-25 Yamaha Hatsudoki Kabushiki Kaisha Valve gear of engine
EP1760278A2 (en) * 2005-08-30 2007-03-07 Bayerische Motoren Werke Aktiengesellschaft Lift-variable valve-operating system for internal combustion engine
DE102006018511A1 (en) * 2006-04-21 2007-10-25 Schaeffler Kg Rocker arm for a variable-stroke valve train
EP1862649A1 (en) * 2006-04-21 2007-12-05 Schaeffler KG Swing arm for a valve operating mechanism with a variable
CN101550853B (en) * 2009-05-08 2011-04-06 上海汽车集团股份有限公司 Engine air valve continuously variable driving mechanism
WO2012150052A1 (en) * 2011-05-04 2012-11-08 Schaeffler Technologies AG & Co. KG Intermediate lever
GB2491939A (en) * 2011-06-15 2012-12-19 Schaeffler Technologies Ag Intermediate Lever with Stiffening Yoke
WO2015110189A1 (en) * 2014-01-23 2015-07-30 Pierburg Gmbh Transmission assembly for a mechanically controllable valve train, and mechanically controllable valve train
CN107956529A (en) * 2016-10-18 2018-04-24 舍弗勒技术股份两合公司 Intermediate lever of variable valve gear

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10322250B4 (en) * 2003-05-13 2008-01-17 Federal-Mogul Wiesbaden Gmbh & Co. Kg Auxiliary camshaft system with at least two bearings and method of producing a system with auxiliary camshaft and at least two bearings
DE102007033821B4 (en) * 2007-07-18 2013-10-31 Hydraulik-Ring Gmbh Working curve of a variable valve train

Citations (2)

* 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
DE4326331A1 (en) 1992-07-15 1995-02-09 Bayerische Motoren Werke Ag Valve gear of an internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638706A1 (en) * 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Valve actuating mechanism of an internal combustion engine
DE19708484B4 (en) * 1997-03-03 2006-07-13 Bayerische Motoren Werke Ag Device for changing the Ventilhubverlaufes a lift valve, in particular a gas exchange valve of internal combustion engines

Patent Citations (2)

* 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
DE4326331A1 (en) 1992-07-15 1995-02-09 Bayerische Motoren Werke Ag Valve gear of an internal combustion engine

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1387049A1 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive
EP1387050A1 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Cylinder head for an internal combustion engine with variable lift valve drive
WO2004057160A1 (en) * 2002-12-21 2004-07-08 Ina-Schaeffler Kg Intermediate lever for a variable valve drive of an internal combustion engine
US7055478B2 (en) 2002-12-21 2006-06-06 Ina-Schaeffler Kg Intermediate lever for a variable valve train of an internal combustion engine
EP1619360A4 (en) * 2003-05-01 2008-09-17 Yamaha Motor Co Ltd Valve gear of engine
EP1619361A1 (en) * 2003-05-01 2006-01-25 Yamaha Hatsudoki Kabushiki Kaisha Valve-moving device for engine
EP1619360A1 (en) * 2003-05-01 2006-01-25 Yamaha Hatsudoki Kabushiki Kaisha Valve gear of engine
EP1619361A4 (en) * 2003-05-01 2008-11-26 Yamaha Motor Co Ltd Valve-moving device for engine
EP1496211A1 (en) * 2003-07-08 2005-01-12 Bayerische Motoren Werke Aktiengesellschaft Rocker arm for a variable lift valve drive
EP1760278A3 (en) * 2005-08-30 2010-03-10 Bayerische Motoren Werke Aktiengesellschaft Lift-variable valve-operating system for internal combustion engine
EP1760278A2 (en) * 2005-08-30 2007-03-07 Bayerische Motoren Werke Aktiengesellschaft Lift-variable valve-operating system for internal combustion engine
EP1862649A1 (en) * 2006-04-21 2007-12-05 Schaeffler KG Swing arm for a valve operating mechanism with a variable
DE102006018511A1 (en) * 2006-04-21 2007-10-25 Schaeffler Kg Rocker arm for a variable-stroke valve train
CN101550853B (en) * 2009-05-08 2011-04-06 上海汽车集团股份有限公司 Engine air valve continuously variable driving mechanism
CN103502583A (en) * 2011-05-04 2014-01-08 谢夫勒科技股份两合公司 Intermediate lever
WO2012150052A1 (en) * 2011-05-04 2012-11-08 Schaeffler Technologies AG & Co. KG Intermediate lever
CN103502583B (en) * 2011-05-04 2016-08-17 舍弗勒技术股份两合公司 Intermediate lever
GB2491939A (en) * 2011-06-15 2012-12-19 Schaeffler Technologies Ag Intermediate Lever with Stiffening Yoke
WO2015110189A1 (en) * 2014-01-23 2015-07-30 Pierburg Gmbh Transmission assembly for a mechanically controllable valve train, and mechanically controllable valve train
CN105658918A (en) * 2014-01-23 2016-06-08 皮尔伯格有限责任公司 Transmission assembly for a mechanically controllable valve train, and mechanically controllable valve train
JP2017503949A (en) * 2014-01-23 2017-02-02 ピアーブルグ ゲゼルシャフト ミット ベシュレンクテル ハフツングＰＩＥＲＢＵＲＧ ＧｍｂＨ Mechanically controllable valve train transmission mechanism and mechanically controllable valve train
CN105658918B (en) * 2014-01-23 2019-10-01 皮尔伯格有限责任公司 Drive assembly and Mechanical controllable formula valve mechanism for Mechanical controllable formula valve mechanism
CN107956529A (en) * 2016-10-18 2018-04-24 舍弗勒技术股份两合公司 Intermediate lever of variable valve gear
CN107956529B (en) * 2016-10-18 2021-08-24 舍弗勒技术股份两合公司 Intermediate lever of variable valve gear

Also Published As

Publication number Publication date
DE10017441A1 (en) 2001-10-11
EP1143118A3 (en) 2002-11-13
DE50100476D1 (en) 2003-09-18
ES2204773T3 (en) 2004-05-01
EP1143118B1 (en) 2003-08-13

Similar Documents

Publication Publication Date Title
EP1143118B1 (en) Device for varying the valve lift in an engine cylinder head
DE69718569T2 (en) Two-phase valve control device
DE69914348T2 (en) VALVE TRAIN
EP0389609B1 (en) Device for actuating the valves of internal combustion engines with adjustable valve-lifting cam
DE69105265T2 (en) CAM CONTROLS.
DE102008028563B4 (en) rocker arm assembly
DE10158703A1 (en) rocker
DE102005017066B4 (en) Variable valve unit for an internal combustion engine
DE102010048709A1 (en) Mechanically controllable valve drive and mechanically controllable valve train arrangement
DE60308377T2 (en) HUB ADJUSTMENT DEVICE FOR MOTOR VALVES
DE3500523C2 (en)
DE102007010150A1 (en) Valve drive for gas exchange valves has locking device fixed in position in housing of internal combustion engine
DE102014108040A1 (en) Valve lift height variably changing variable valve device
DE19600536A1 (en) Device for variable control of inlet valve of combustion engine
EP1387048B1 (en) Rocking lever for valve drive with variable lift
DE4112833A1 (en) Variable valve control for IC engine gas exchange valve - has two parallel levers fitted between camshaft cam and valve sheet
DE102018110573A1 (en) Device for actuating displaceable locking means
DE10320324A1 (en) Valve actuating system for internal combustion engine has intermediate component supported and pivotably guided on variable position component to engage cam of camshaft and stroke-transmitting arrangement
DE4411182B4 (en) Switchable valve control for internal combustion engines
DE102008047124B4 (en) Infinitely variable valve lift
EP1022443B1 (en) Variable valve drive for internal combustion engine
DE3523253C2 (en)
EP0686756B1 (en) Valve drive with variable and independent control of the valve opening angle and of the valve lift
DE3825567A1 (en) ACTUATING DEVICE FOR VALVES OF AN INTERNAL COMBUSTION ENGINE
DE102010018712A1 (en) Valve train for gas shuttle valve e.g. inlet valve, of combustion engine, has cam follower arranged between valve stem and cam of cam shaft, where rolling member is arranged with peripheral surface between cam follower and valve stem

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021123

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AKX Designation fees paid

Designated state(s): DE ES FR GB IT

AK Designated contracting states

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50100476

Country of ref document: DE

Date of ref document: 20030918

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2204773

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040514

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20190130

Year of fee payment: 16

Ref country code: GB

Payment date: 20190325

Year of fee payment: 19

Ref country code: FR

Payment date: 20190326

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20190424

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200313

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50100476

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200314

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200315

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230419