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DE19509604A1 - Valve train of an internal combustion engine - Google Patents

Valve train of an internal combustion engine

Info

Publication number
DE19509604A1
DE19509604A1 DE1995109604 DE19509604A DE19509604A1 DE 19509604 A1 DE19509604 A1 DE 19509604A1 DE 1995109604 DE1995109604 DE 1995109604 DE 19509604 A DE19509604 A DE 19509604A DE 19509604 A1 DE19509604 A1 DE 19509604A1
Authority
DE
Germany
Prior art keywords
rocker arm
eccentric
cam
valve
internal combustion
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.)
Ceased
Application number
DE1995109604
Other languages
German (de)
Inventor
Harald Unger
Uwe Hoyer
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
Priority to DE1995109604 priority Critical patent/DE19509604A1/en
Priority to FR9602956A priority patent/FR2731744B1/en
Priority to GB9605415A priority patent/GB2298899B/en
Publication of DE19509604A1 publication Critical patent/DE19509604A1/en
Ceased legal-status Critical Current

Links

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A rocker 5 operating inlet valves 3 has a roller (7, Figs. 1 and 3) engaged by a rocker 8 guided on a shaft 9' between eccentrics 9. Cams 10 engage rollers 12 on the rocker 8 which is biased to engage the cams and the eccentrics 9 by a spring. Angular adjustment of the shaft 9' varies the valve motion provided by the cams 10.

Description

Die Erfindung betrifft einen Ventiltrieb einer Brenn­ kraftmaschine mit einem auf das Hubventil einwirkenden Schwinghebel, mit einem weiteren zugeordneten Schwinghe­ bel, sowie mit einem zugeordneten Nocken und einem weite­ ren verstellbaren Exzenter, der auf einer Exzenterwelle angeordnet ist, wobei Schwinghebel, Nocken und Exzenter derart aufeinander einwirken, daß sich bei unterschiedli­ chen Exzenterpositionen unterschiedliche vom Nocken her­ vorgerufene Ventilhubverläufe ergeben.The invention relates to a valve train of a burner Engine with one acting on the lift valve Rocker arm, with another assigned swing arm bel, as well as with an assigned cam and a wide adjustable eccentric, on an eccentric shaft is arranged, with rocker arm, cam and eccentric interact in such a way that different Chen eccentric positions different from the cam called valve lift curves result.

Bekannt ist ein derartiger Ventiltrieb aus der DE 43 26 331 A1.Such a valve train is known from DE 43 26 331 A1.

Konstruktive Vereinfachungen an diesem bekannten Ventiltrieb aufzuzeigen, ist Aufgabe der vorliegenden Er­ findung.Constructional simplifications to this known Showing valve train is the task of the present Er finding.

Zur Lösung dieser Aufgabe ist vorgesehen, daß der sich am Exzenter abstützende Schwinghebel von der Exzenterwelle geführt ist. Vorteilhafte Aus- und Weiterbildungen sind im abhängigen Patentanspruch aufgelistet.To solve this problem it is provided that the Eccentric supporting rocker arms from the eccentric shaft is led. Advantageous training and further education are listed in the dependent claim.

Näher erläutert wird die Erfindung anhand eines bevorzug­ ten Ausführungsbeispieles. Dabei zeigt Fig. 1 einen Quer­ schnitt durch einen Brennkraftmaschinen-Zylinderkopf mit einem erfindungsgemäßen Ventiltrieb, Fig. 2 eine Perspek­ tivansicht des Ventiltriebes, sowie Fig. 3 eine weitere Ansicht aus einer anderen Perspektive.The invention is explained in more detail using a preferred exemplary embodiment. Here, FIG 1. 3 shows a cross section through an engine cylinder head with a valve gear according to the invention, Fig. 2 is a perspec tivansicht of the valve train, and Fig. Is a further view from a different perspective.

In einem Zylinderkopf 1 einer Brennkraftmaschine ist ne­ ben einem Auslaßventil 2 auch ein Einlaß-Hubventil 3 ge­ lagert, das von einem in seiner Gesamtheit mit 4 bezeich­ neten Ventiltrieb betätigt wird.In a cylinder head 1 of an internal combustion engine, an inlet lift valve 3 is also ben ben an outlet valve 2 , which is actuated by a valve drive designated in its entirety by 4 .

Im einzelnen wirkt auf das freie Ende des Hubventiles 3 ein sog. zweiter Schwinghebel 5 ein, der auf einer Kugel­ schale 6 gelagert ist und der eine Rolle 7 trägt, auf die ein sog. erster Schwinghebel 8 einwirkt.In particular, acts on the free end of the lifting valve 3, a so-called. Second rocker arm 5 , which is mounted on a spherical shell 6 and carries a roller 7 , on which a so-called. First rocker arm 8 acts.

Der erste Schwinghebel 8 stützt sich mit seinem dem zwei­ ten Schwinghebel 5 gegenüberliegenden Ende auf einem Ex­ zenter 9 ab. Ferner wirkt auf den ersten Schwinghebel 8 ein Nocken 10 ein. Bei einer definierten Position des Ex­ zenters 9 wird somit wie üblich durch den Nocken 10 das Hubventil 3 entsprechend einem bestimmten Ventilhubver­ lauf geöffnet. Dabei lenkt der um seine Achse rotierende Nocken 10 den ersten Schwinghebel 8 in einer gewissen Weise aus, wobei diese Auslenkbewegung über die Rolle 7 auf den zweiten Schwinghebel 5 und von diesem auf das Hubventil 3 übertragen wird. Nimmt nun der Exzenter 9 eine andere Position ein, so verändert sich auch die Lage des ersten Schwinghebels 8, so daß nunmehr bei einer Drehbewegung des Nockens 10 ein anderer Ventilhubverlauf des Hubventiles 3 zustande kommt.The first rocker arm 8 is supported with its two th rocker arm 5 opposite end on an Ex center 9 . Furthermore, a cam 10 acts on the first rocker arm 8 . At a defined position of the Ex center 9 , the lift valve 3 is thus opened as usual according to a certain Ventilhubver run by the cam 10 . The cam 10 rotating about its axis deflects the first rocker arm 8 in a certain way, this deflection movement being transmitted via the roller 7 to the second rocker arm 5 and from there to the lift valve 3 . If the eccentric 9 now assumes a different position, the position of the first rocker arm 8 also changes , so that a different valve lift course of the lift valve 3 now takes place when the cam 10 rotates.

Bei der gezeigten Brennkraftmaschine mit dem Zylinderkopf 1 handelt es sich um eine Reihen-Brennkraftmaschine, so daß mehrere Nocken 10 der mehreren hintereinander ange­ ordneten Brennkraftmaschinen-Zylinder auf einer gemeinsa­ men Nockenwelle 10′ angeordnet sind. In gleicher Weise sind mehrere Exzenter 9 auf einer gemeinsamen Exzenter­ welle 9′ angeordnet. In the internal combustion engine shown with the cylinder head 1 is an in-line internal combustion engine, so that a plurality of cams 10 of the plurality of internal combustion engine cylinders arranged one behind the other are arranged on a common camshaft 10 '. In the same way, several eccentrics 9 are arranged on a common eccentric shaft 9 '.

Während der zweite Schwinghebel 5 auf der Kugelschale 6 gelagert ist, ist auch für den ersten Schwinghebel 8 eine geeignete Lagerung bzw. Führung vorzusehen. In dieser vorliegenden beschriebenen Konstruktion ist der erste Schwinghebel 8 durch die Exzenterwelle 9′ geführt. Dies erkennt man am besten aus den Figurendarstellungen 2, 3, woraus sich ergibt, daß das freie Ende dieses ersten Schwinghebels 8 ein Segment der Exzenterwelle 9′ quasi umgreift. Vorteilhafterweise ist dadurch, daß der erste Schwinghebel 8 von der Exzenterwelle 9′ geführt ist, kein separates Bauelement zur Führung erforderlich; vielmehr kann auf die wegen der mehreren Exzenter 9 ohnehin be­ reits vorhandene Exzenterwelle 9′ zurückgegriffen werden.While the second rocker arm 5 is supported on the spherical shell 6 , suitable mounting or guidance must also be provided for the first rocker arm 8 . In this described construction, the first rocker arm 8 is guided by the eccentric shaft 9 '. This can best be seen from the figure representations 2 , 3 , from which it follows that the free end of this first rocker arm 8 virtually engages around a segment of the eccentric shaft 9 '. Advantageously, the fact that the first rocker arm 8 is guided by the eccentric shaft 9 ', no separate component is required for guidance; rather can be used because of the several eccentrics 9 already existing eccentric shaft 9 '.

Wie den Fig. 2, 3 ebenfalls entnommen werden kann, sind beidseitig des vom Schwinghebel 8 umfaßten Exzenterwel­ len-Segmentes Exzenter 9 angeordnet, an denen sich der Schwinghebel 8 mit an den Seitenflanken des Schwinghebels vorgesehenen Nasen 11 abstützt. Bei gleichmäßiger Kräfte­ verteilung führt diese Anordnung zu einer äußerst stabi­ len Lagerung und Führung des ersten Schwinghebels 8 durch die Exzenterwelle 9′ mit den Exzentern 9. In vergleichba­ rer Weise sind zwei Nocken 10 vorgesehen, die auf den ersten Schwinghebel 8 einwirken und hierzu selbstver­ ständlich - ebenso wie die beiden Exzenter 9 - von glei­ cher Konfiguration sein müssen. Die beiden Nacken 10 wir­ ken dabei über Rollen 12 auf den ersten Schwinghebel 8 ein, d. h. der erste Schwinghebel 8 trägt an seinen bei­ den Seitenflanken jeweils eine derartige Rolle 12.As can also be taken from Fig. 2, 3, len-segment cam 9 arranged on both sides of the oscillating lever 8 comprised of Exzenterwel at which the rocker arm 8 rests with provided on the side flanks of tabs 11 of the swing lever. With uniform distribution of forces, this arrangement leads to an extremely stable storage and guidance of the first rocker arm 8 through the eccentric shaft 9 'with the eccentrics 9th In a comparable manner, two cams 10 are provided which act on the first rocker arm 8 and of course - like the two eccentrics 9 - must be of the same configuration. The two neck 10 we ken via rollers 12 on the first rocker arm 8 , ie the first rocker arm 8 carries such a roller 12 on its side flanks.

In Abstimmung mit dem vorhandenen Bauraum eignet sich der beschriebene Ventiltrieb besonders vorteilhaft zur Betä­ tigung zweier parallel wirksamer Hubventile 3 eines Brennkraftmaschinen-Zylinders. Dann muß lediglich der vom ersten Schwinghebel 8 betätigte zweite Schwinghebel 5 wie gezeigt gegabelt ausgebildet sein und kann daher mit sei­ nen beiden Gabel-Armen 5′ jeweils auf ein Hubventil 3 einwirken. Vorteilhafterweise ist die Rolle 7, auf der der erste Schwinghebel 8 abwälzt, zwischen den beiden Ga­ belarmen 5′ gelagert.In coordination with the available space, the valve train described is particularly advantageous for actuating two parallel-acting lift valves 3 of an internal combustion engine cylinder. Then only the second rocker arm 5 actuated by the first rocker arm 8 must be forked as shown and can therefore act on a lift valve 3 with both of its fork arms 5 '. Advantageously, the roller 7 , on which the first rocker arm 8 rolls, between the two Ga belarmen 5 'mounted.

Weiterhin erkennt man in sämtlichen Figurendarstellungen ein als Torsionsschenkelfeder ausgebildetes Federelement 13, das die Positionierung des ersten Schwinghebels 8 un­ terstützt. Dies bedeutet, daß dieses Federelement 13 da­ für sorgt, daß der erste Schwinghebel 8 einerseits mit seinen Rollen 12 gegen die Nocken 10 gepreßt wird und andererseits mit seinen dem zweiten Schwinghebel 5 gegenüberliegenden Ende von der Exzenterwelle 9′ geführt wird, bzw. sich mit diesem Ende an den beiden Exzentern 9 abstützt. Jedoch kann dies sowie weitere Details insbesondere konstruktiver Art durchaus abweichend vom gezeigten Ausführungsbeispiel gestaltet sein, ohne den Inhalt der Patentansprüche zu verlassen.Furthermore, one can see in all of the figure representations a spring element 13 designed as a torsion leg spring, which supports the positioning of the first rocker arm 8 un. This means that this spring element 13 ensures that the first rocker arm 8 is pressed on the one hand with its rollers 12 against the cams 10 and on the other hand with its end opposite the second rocker arm 5 from the eccentric shaft 9 ', or with this End supported on the two eccentrics 9 . However, this and other details, in particular of a constructive nature, can be designed quite differently from the exemplary embodiment shown, without leaving the content of the claims.

Claims (2)

1. Ventiltrieb einer Brennkraftmaschine mit einem auf das Hubventil (3) einwirkenden Schwinghebel (5), mit einem weiteren zugeordneten Schwinghebel (8) sowie mit einem zugeordneten Nocken (10) und einem weite­ ren verstellbaren Exzenter (9), der auf einer Exzen­ terwelle (9′) angeordnet ist, wobei Schwinghebel (5, 8), Nocken (10) und Exzenter (9) derart aufeinander einwirken, daß sich bei unterschiedlichen Exzenter­ positionen unterschiedliche vom Nocken hervorgeru­ fene Ventilhubverläufe ergeben, dadurch gekennzeichnet, daß der sich am Exzenter (9) abstützende Schwinghebel (8) von der Exzenterwelle (9′) geführt ist.1. Valve gear of an internal combustion engine with a force acting on the lifting valve (3) rocker arm (5), with a further associated rocker arm (8) and with an associated cam (10) and a wide ren adjustable eccentric (9), the shaft is engaged on a Exzen ( 9 ') is arranged, wherein the rocker arm ( 5 , 8 ), cam ( 10 ) and eccentric ( 9 ) act on each other in such a way that different cam positions result in different valve lift profiles, characterized in that the eccentric ( 9 ) supporting rocker arm ( 8 ) of the eccentric shaft ( 9 ') is guided. 2. Ventiltrieb nach Anspruch 1, gekennzeichnet durch zumindest eines der folgenden Merkmale:
  • - der von der Exzenterwelle (9′) geführte Schwinghebel (8) umgreift mit seinem freien Ende ein Exzen­ terwellen-Segment
  • - beidseitig des vom Schwinghebel (8) umfaßten Segmen­ tes sind Exzenter (9) angeordnet, an denen sich der Schwinghebel (8) mit an den Seitenflanken vorgese­ henen Nasen (11) abstützt
  • - der sich am Exzenter (9) abstützende Schwinghebel (8) wird vom Nocken (10) ausgelenkt und betätigt da­ bei den zweiten, auf das Hubventil (3) einwirkenden Schwinghebel (5)
  • - der erste, vom Nocken (10) ausgelenkte Schwinghebel (8) trägt an den Seitenflanken jeweils eine Rolle (12), auf die jeweils ein Nocken (10) einwirkt
  • - der zweite Schwinghebel (5) ist gegabelt ausgebildet und betätigt zwei parallel wirkende Hubventile (3) eines Brennkraftmaschinen-Zylinders
  • - zwischen den beiden Gabelarmen (5′) des zweiten Schwinghebels (5) ist eine Rolle (7) gelagert, auf die der erste Schwinghebel (8) einwirkt
  • - ein als Torsionsschenkelfeder ausgebildetes Feder­ element (13) unterstützt die Positionierung des ersten Schwinghebels (8).
2. Valve train according to claim 1, characterized by at least one of the following features:
  • - Of the eccentric shaft ( 9 ') guided rocker arm ( 8 ) engages with its free end an Exzen terwellen segment
  • - On both sides of the rocker arm ( 8 ) Segmen tes eccentric ( 9 ) are arranged, on which the rocker arm ( 8 ) is supported with the side flanks provided nose ( 11 )
  • - The rocker arm ( 8 ), which is supported on the eccentric ( 9 ), is deflected by the cam ( 10 ) and actuates the second rocker arm ( 5 ) acting on the lift valve ( 3 ).
  • - The first, from the cam ( 10 ) deflected rocker arm ( 8 ) carries on the side flanks a roller ( 12 ), each of which acts on a cam ( 10 )
  • - The second rocker arm ( 5 ) is forked and actuates two parallel-acting lift valves ( 3 ) of an internal combustion engine cylinder
  • - Between the two fork arms ( 5 ') of the second rocker arm ( 5 ), a roller ( 7 ) is mounted on which the first rocker arm ( 8 ) acts
  • - A spring element ( 13 ) designed as a torsion leg spring supports the positioning of the first rocker arm ( 8 ).
DE1995109604 1995-03-16 1995-03-16 Valve train of an internal combustion engine Ceased DE19509604A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1995109604 DE19509604A1 (en) 1995-03-16 1995-03-16 Valve train of an internal combustion engine
FR9602956A FR2731744B1 (en) 1995-03-16 1996-03-08 CONTROL OF THE VALVES OF AN INTERNAL COMBUSTION ENGINE
GB9605415A GB2298899B (en) 1995-03-16 1996-03-14 Valve drive for an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995109604 DE19509604A1 (en) 1995-03-16 1995-03-16 Valve train of an internal combustion engine

Publications (1)

Publication Number Publication Date
DE19509604A1 true DE19509604A1 (en) 1996-09-19

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ID=7756883

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995109604 Ceased DE19509604A1 (en) 1995-03-16 1995-03-16 Valve train of an internal combustion engine

Country Status (3)

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DE (1) DE19509604A1 (en)
FR (1) FR2731744B1 (en)
GB (1) GB2298899B (en)

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DE19629881A1 (en) * 1996-07-24 1998-01-29 Bayerische Motoren Werke Ag Valve train of an internal combustion engine with rocker arms supported on an eccentric shaft
DE19708484A1 (en) * 1997-03-03 1998-09-10 Bayerische Motoren Werke Ag Device for changing valve motion of lifting valve, especially for gas shuttle valve
WO2002035067A1 (en) 2000-10-25 2002-05-02 Ina-Schaeffler Kg Variable valve distributor for load-controlling a spark-ignited internal combustion engine
WO2002092972A1 (en) * 2001-05-12 2002-11-21 Bayerische Motoren Werke Gas driving device for variable adjustment of the lift of a gas exchange valve of an internal combustion engine
WO2003014537A1 (en) 2001-08-06 2003-02-20 Christian Heier Valve control on a reciprocating piston engine (vvst)
WO2003085239A1 (en) * 2002-04-04 2003-10-16 Thyssenkrupp Automotive Ag Guide systems for variable valve controllers
EP1387050A1 (en) * 2002-08-02 2004-02-04 Bayerische Motoren Werke Aktiengesellschaft Cylinder head for an internal combustion engine with variable lift valve drive
DE10239908A1 (en) * 2002-08-30 2004-02-26 Audi Ag Variable valve gear for reciprocating piston internal combustion engines has cams each operating lift valve via roller packet both of which are commonly movable along adjustment ramp commonly constructed in common slide component
DE10239909A1 (en) * 2002-08-30 2004-02-26 Audi Ag Variable valve gear especially for reciprocating piston internal combustion engine has adjustment ramp and pre-acceleration ramp forming guide sections of one-sided guide face of slide component for guiding of roller packet
DE10261304A1 (en) * 2002-12-27 2004-07-15 BÖSL-FLIERL, Gerlinde Valve lifting device for variable valve control of the gas exchange valves of an internal combustion engine
WO2005026503A2 (en) 2003-09-10 2005-03-24 Rolf Jung Fully variable lift valve controller
DE10354428A1 (en) * 2003-11-21 2005-06-23 Bayerische Motoren Werke Ag Management system for IC engine especially during cold starting has the opening time of the inlet valve reduced and with retarded timing
DE102004001343A1 (en) * 2004-01-08 2005-09-01 Entec Consulting Gmbh Variable valve lift device for internal combustion engine, has rotatable eccentric shaft having eccentrics contours positioned within circle formed by external diameter of bearings of eccentric shaft
DE102005047040A1 (en) * 2005-09-30 2007-04-05 Mtu Friedrichshafen Gmbh Variable valve controller for V-engine, has lower oscillating arms adjusted around central cam shaft by displacement of guide shafts using actuator that is driven around regulating shaft, where arms are movably coupled with inlet valve
US7418935B2 (en) 2002-06-20 2008-09-02 Hydraulik-Ring Gmbh Stroke adjusting device for valves of a combustion engine
DE10312961C5 (en) * 2003-03-24 2009-01-29 Thyssenkrupp Presta Teccenter Ag Device for the variable actuation of gas exchange valves of internal combustion engines
DE10006015B4 (en) * 2000-02-11 2009-09-17 Schaeffler Kg Variable valve drive for load control of a spark-ignited internal combustion engine
DE102011082226A1 (en) * 2011-09-07 2013-03-07 Bayerische Motoren Werke Aktiengesellschaft Double leg spring for a variable-stroke valve drive in a cylinder head of an internal combustion engine
CN103925035A (en) * 2013-01-15 2014-07-16 长城汽车股份有限公司 Swing arm adjusting frame
DE102016201118A1 (en) * 2016-01-27 2017-07-27 Schaeffler Technologies AG & Co. KG Anti-rotation compensation device on a camshaft drive with camshaft-parallel spring
DE102016220396A1 (en) * 2016-10-18 2017-08-10 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train
DE102016220397A1 (en) * 2016-10-18 2017-08-10 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train
DE102016220401A1 (en) * 2016-10-18 2017-09-07 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train
DE102016223087A1 (en) * 2016-11-23 2017-10-26 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train
DE102016220394B3 (en) * 2016-10-18 2017-12-28 Schaeffler Technologies AG & Co. KG Intermediate lever of a variable valve train
DE102008047124B4 (en) * 2008-04-14 2019-03-21 Hyundai Motor Co. Infinitely variable valve lift
DE102011003898B4 (en) 2011-02-10 2021-09-09 Schaeffler Technologies AG & Co. KG Intermediate lever

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US6745734B2 (en) * 2002-05-24 2004-06-08 Delphi Technologies, Inc. Variable valve actuating mechanism having torsional lash control spring
EP1710402B1 (en) * 2003-12-18 2013-06-19 Toyota Jidosha Kabushiki Kaisha Variable valve mechanism
JP4238203B2 (en) 2004-01-30 2009-03-18 本田技研工業株式会社 engine
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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629881A1 (en) * 1996-07-24 1998-01-29 Bayerische Motoren Werke Ag Valve train of an internal combustion engine with rocker arms supported on an eccentric shaft
DE19708484A1 (en) * 1997-03-03 1998-09-10 Bayerische Motoren Werke Ag Device for changing valve motion of lifting valve, especially for gas shuttle valve
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
DE10006015B4 (en) * 2000-02-11 2009-09-17 Schaeffler Kg Variable valve drive for load control of a spark-ignited internal combustion engine
JP2004516402A (en) * 2000-10-25 2004-06-03 イナーシエツフレル コマンディートゲゼルシャフト Variable Valve Drive Mechanism for Load Control of Spark Ignition Internal Combustion Engine
WO2002035067A1 (en) 2000-10-25 2002-05-02 Ina-Schaeffler Kg Variable valve distributor for load-controlling a spark-ignited internal combustion engine
WO2002092972A1 (en) * 2001-05-12 2002-11-21 Bayerische Motoren Werke Gas driving device for variable adjustment of the lift of a gas exchange valve of an internal combustion engine
US6907852B2 (en) 2001-05-12 2005-06-21 Bayerische Motoren Werke Ag Valve operating device for variable stroke adjustment of a charge exchange valve of an internal combustion engine
WO2003014537A1 (en) 2001-08-06 2003-02-20 Christian Heier Valve control on a reciprocating piston engine (vvst)
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Also Published As

Publication number Publication date
FR2731744B1 (en) 1997-12-19
FR2731744A1 (en) 1996-09-20
GB2298899B (en) 1998-10-14
GB2298899A (en) 1996-09-18
GB9605415D0 (en) 1996-05-15

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