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 PDFInfo
- 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
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
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
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
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.
- 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
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
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
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
Claims (3)
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)
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)
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)
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)
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 |
-
2000
- 2000-04-07 DE DE10017441A patent/DE10017441A1/en not_active Withdrawn
-
2001
- 2001-03-14 DE DE50100476T patent/DE50100476D1/en not_active Expired - Lifetime
- 2001-03-14 ES ES01106205T patent/ES2204773T3/en not_active Expired - Lifetime
- 2001-03-14 EP EP01106205A patent/EP1143118B1/en not_active Expired - Lifetime
Patent Citations (2)
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)
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 |
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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 |
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