DE10140635B4 - Device for variable valve lift adjustment of gas exchange valves of an internal combustion engine - Google Patents
Device for variable valve lift adjustment of gas exchange valves of an internal combustion engine Download PDFInfo
- Publication number
- DE10140635B4 DE10140635B4 DE10140635A DE10140635A DE10140635B4 DE 10140635 B4 DE10140635 B4 DE 10140635B4 DE 10140635 A DE10140635 A DE 10140635A DE 10140635 A DE10140635 A DE 10140635A DE 10140635 B4 DE10140635 B4 DE 10140635B4
- Authority
- DE
- Germany
- Prior art keywords
- valve
- working curve
- adjustment bar
- camshaft
- scenery
- 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.)
- Expired - Fee Related
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
- F01L13/0005—Deactivating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Vorrichtung zur variablen Ventilhubverstellung mit einer Anordnung oder zwei Anordnungen folgender Elemente:
ein verschwenkbarer Hebel mit einer Arbeitskurve,
ein Ventilbetätigungsmittel,
eine Feder, welche den verschwenkbaren Hebel gegen einen Nocken einer Nockenwelle drängt,
dadurch gekennzeichnet, dass
der verschwenkbare Hebel ein Kipphebel (3) ist, der
an seinem ersten Arm eine erste Rolle (12), die durch den Nocken der Nockenwelle (1) in einer Kulisse (2) bewegt wird,
in seinem Schwenkzentrum eine zweite Rolle (13), die sich an einer Kontur (11) einer Verstellleiste (8) abwälzt, und
an seinem zweiten Arm die Arbeitskurve (4) aufweist, die mit dem Ventilbetätigungsmittel (5) zusammenwirkt.Device for variable valve lift adjustment with one arrangement or two arrangements of the following elements:
a pivoting lever with a working curve,
a valve actuator,
a spring which urges the pivotable lever against a cam of a camshaft,
characterized in that
the pivotable lever is a rocker arm (3), the
on its first arm a first roller (12) which is moved by the cam of the camshaft (1) in a link (2),
in its pivot center, a second roller (13), which rolls on a contour (11) of an adjustment bar (8), and
at its second arm, the working curve (4) which cooperates with the valve actuating means (5).
Description
Die vorliegende Erfindung betrifft eine Vorrichtung (Ventiltriebsvorrichtung) zur variablen Ventilhubverstellung nach dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a device (valve drive device) for variable valve lift according to the preamble of the claim 1.
Bei bekannten hubvariablen Ventilsteuerungen wird ein Schwinghebel benutzt, der sich auf einem Zapfen abstützt.at known variable-stroke valve controls, a rocker arm is used, which is supported on a pin.
Aus
der
Eine Aufgabe der vorliegenden Erfindung bestand demnach darin, eine Vorrichtung zur Verfügung zu stellen, mit welcher höhere Ventilbeschleunigungen und höhere Motordrehzahlen erreicht werden können.A It is an object of the present invention to provide a device to disposal to ask, with which higher Valve accelerations and higher Engine speeds can be achieved.
Diese Aufgabe wird gelöst durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1.These Task is solved by the features of the characterizing part of the claim 1.
Weitere angestrebte Wirkungen, wie z. B. die Höhe der Beschleunigung eines Gaswechselventils von dem eingestellten Ventilhub abhängig zu machen, werden durch die kennzeichnenden Merkmale der Unteransprüche erreicht.Further desired effects, such. B. the amount of acceleration of a Gas exchange valve of the set valve lift depending on are achieved by the characterizing features of the subclaims.
Die Erfindung stellt eine Vorrichtung (Ventiltriebsvorrichtung) zur unabhängigen variablen Hubverstellung der Gaswechselventile einer Brennkraftmaschine dar, bei der die Gaswechselventile durch zusätzliche Kipphebel betätigt werden, die durch unabhängige Verstellleisten positioniert werden und durch eine Nockenwelle in maschinenfesten Kulissenbahnen bewegt werden. Ein Kipphebel rollt dabei in der Kulissenbahn mit einer gelagerten Rolle ab und wälzt sich gleichzeitig an einer zweiten im Hebel gelagerten Rolle entlang der Kontur einer Verstellleiste ab. Der Kipphebel weist gegenüber der Kulissenrolle eine Arbeitskurve auf, die auf der Rolle eines Rollenschlepphebels, der bevorzugt auf einem hydraulisch betätigten Spielausgleichselement gelagert ist, abläuft.The Invention provides a device (valve drive device) to independent variable stroke adjustment of the gas exchange valves of an internal combustion engine in which the gas exchange valves are actuated by additional rocker arms, by independent Adjusting bars are positioned and inserted through a camshaft machine-fixed slide tracks are moved. A rocker arm rolls doing in the slide track with a stored role and rolls simultaneously along a second roller mounted in the lever the contour of an adjustment. The rocker arm faces the Sliding block on a working curve on the role of a roller rocker arm, the preferred on a hydraulically actuated clearance compensation element is stored, expires.
Zur Einstellung eines Ventilhubes wird die Verstellleiste in einer Führung entsprechend einer Drehmomentanforderung positioniert bzw. eingeregelt. Der Regelbereich wird einerseits durch den erforderlichen Ventilhub der Brennkraftmaschine im Leerlauf, andererseits durch den maximalen Ventilhub festgelegt. Die Position der Verstellleiste bestimmt, welcher Bereich der Arbeitskurve auf der Rolle des Rollenschlepphebels abläuft. Bei einem mehrventiligen Motor können z. B. zwei Einlassventile bei unterschiedlicher Position ihrer Verstellleisten mit unterschiedlichen Ventilhüben betrieben werden. Damit kann durch eine Erhöhung der Turbulenz des in den Brennraum strömenden Gases und durch eine Reduzierung der Motorreibung der Wirkungsgrad der Verbrennungskraftmaschine verbessert werden.to Setting a valve stroke, the adjustment bar in a guide accordingly a torque request positioned or adjusted. The control area on the one hand by the required valve lift of the engine idle, on the other hand determined by the maximum valve lift. The position of the adjustment bar determines which area of the working curve runs on the role of the roller rocker arm. In a multi-valve Engine can z. B. two intake valves at different positions of their adjustment with different valve lifts operate. This can be achieved by increasing the turbulence of the combustion chamber flowing Gas and by reducing the engine friction efficiency the internal combustion engine can be improved.
Zur Reduzierung der Reibleistung der Brennkraftmaschine können die Rollen wälzgelagert, bevorzugt nadelgelagert sein. Die Rollen können aber auch auf Bolzen mit einer reibungsreduzierten Beschichtung z. B. Kohlenstoffbeschichtung betrieben werden.to Reduction of the friction of the internal combustion engine, the Rollers with roller bearings, preferably be needle-bearing. The rollers can also be used with bolts a friction-reduced coating z. B. carbon coating operate.
Kipphebel bewirken aufgrund ihrer Bewegung eine deutlich geringere Massenträgheitskraft als vergleichbare Schwenkhebel und eignen sich damit besser für hohe Drehzahlen. Die Erfindung hat den Vorteil, einen leichten, kompakten Kipphebel mit der hohen Steifigkeit einer gehäusefesten Kulisse zu verbinden und somit die Voraussetzungen für hohe Drehzahlen und hohe Beschleunigungen des Gaswechselventils zu schaffen. Die hohe Steifigkeit der Kulisse wird neben der geometrischen Auslegung durch die Verwendung von Materialien mit hohem E-Modul, das sich vom Material des Zylinderkopfes unterscheidet, erreicht. So kann z. B. die Kulisse aus Stahl oder Sinterstahl in einem Aluminiumzylinderkopf gefertigt werden.rocker arm cause due to their movement a significantly lower inertia than comparable swivel levers and are therefore better for high speeds. The invention has the advantage of a lightweight, compact rocker arm To connect with the high rigidity of a housing-fixed backdrop and thus the requirements for high speeds and high accelerations of the gas exchange valve to accomplish. The high rigidity of the backdrop is in addition to the geometric Design through the use of high modulus materials other than Material of the cylinder head differs, reached. So z. B. the backdrop of steel or sintered steel in an aluminum cylinder head be made.
Bei mechanischen Ventiltrieben nimmt die Ventilbeschleunigung mit dem Quadrat der Nockenwellendrehzahl zu, d. h., die auf das Quadrat der Nockenwelle bezogene Beschleunigung des Ventils ist konstant. Bei hubvariablen Ventiltrieben werden kleine Hübe bei niedrigen Motordrehzahlen betrieben.at mechanical valve trains takes the valve acceleration with the Square of the camshaft speed to, d. h., on the square the camshaft related acceleration of the valve is constant. With variable stroke valve trains, small strokes become possible at low engine speeds operated.
Mit der Erfindung wird auch angestrebt, die Höhe der Beschleunigung des Gaswechselventils von dem eingestellten Ventilhub abhängig zu machen. Erreicht wird dies durch die Abstimmung der Geometrie der Kulisse, der Kontur der Verstellleiste, der Form der Arbeitskurve und der Form des Nockens der Nockenwelle. Die Ventilhubcharakteristik und hier insbesondere die Öffnungs- und Schließrampe wird bei dieser Erfindung durch die Form der Arbeitskurve, durch die Kulissenbahn, durch die Kontur der Verstellleiste und durch die Nockenform der Nockenwelle gebildet.With The invention is also desired, the amount of acceleration of the gas exchange valve of dependent on the set valve lift close. This is achieved by tuning the geometry the scenery, the contour of the adjustment bar, the shape of the working curve and the shape of the camshaft cam. The valve lift characteristics and here in particular the opening and closing ramp is in this invention by the shape of the working curve, through the slide track, by the contour of the adjustment and by formed the cam shape of the camshaft.
Die vorliegende Erfindung wird im Folgenden anhand von bevorzugten Ausführungsformen näher erläutert.The present invention will become more apparent from the following description of preferred embodiments explained.
Es zeigt:It shows:
In
Der
Kipphebel
Der Übergang
des ersten Bereiches
In
Eine
weitere Ausführung
der Erfindung zeigt
Der
Kipphebel
- 11
- Nockenwellecamshaft
- 2, 2a, 2b2, 2a, 2b
- Kulissescenery
- 3, 3a, 3b3, 3a, 3b
- Kipphebelrocker arm
- 44
- Arbeitskurveworking curve
- 55
- RollenschlepphebelRoller cam
- 66
- GaswechselventilGas exchange valve
- 77
- Federfeather
- 88th
- VerstellleisteVerstellleiste
- 99
- Position (Nullhub)position (Zero stroke)
- 1010
- Position (Maximalhub)position (Maximum stroke)
- 1111
- Konturcontour
- 12, 12a, 12b12 12a, 12b
- Rollerole
- 1313
- Rollerole
- 1414
- Kreisbogenarc
- 1515
- Kreisbogenarc
- 1616
- Rollerole
- 1717
- Führungguide
- 1818
- erster Bereich der Arbeitskurvefirst Range of the working curve
- 1919
- zweiter Bereich der Arbeitskurvesecond Range of the working curve
- 2020
- Achseaxis
- 2121
- Rollerole
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10140635A DE10140635B4 (en) | 2001-08-13 | 2001-08-13 | Device for variable valve lift adjustment of gas exchange valves of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10140635A DE10140635B4 (en) | 2001-08-13 | 2001-08-13 | Device for variable valve lift adjustment of gas exchange valves of an internal combustion engine |
DE10165061 | 2001-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10140635A1 DE10140635A1 (en) | 2003-04-24 |
DE10140635B4 true DE10140635B4 (en) | 2010-12-02 |
Family
ID=7695928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10140635A Expired - Fee Related DE10140635B4 (en) | 2001-08-13 | 2001-08-13 | Device for variable valve lift adjustment of gas exchange valves of an internal combustion engine |
Country Status (1)
Country | Link |
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DE (1) | DE10140635B4 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10164493B4 (en) * | 2001-12-29 | 2010-04-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device for the variable actuation of the charge exchange valves in reciprocating engines |
DE10235401A1 (en) * | 2002-08-02 | 2004-02-12 | Bayerische Motoren Werke Ag | Lift stroke-variable valve gear for cylinder head of internal combustion engine has second pivoting lever installed stationary on first lever to form one-piece and material uniform double lever arrangement |
DE10237104A1 (en) * | 2002-08-13 | 2004-02-26 | Bayerische Motoren Werke Ag | Valve drive for a piston combustion engine has a variable lift control with transmission and actuator elements fixed together |
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 |
EP1961927A3 (en) | 2003-03-29 | 2010-01-06 | Hydraulik-Ring Gmbh | Variable valve lift device for the lift adjustment of gas-exchange valves of an internal combustion engine |
DE10314683B4 (en) * | 2003-03-29 | 2009-05-07 | Entec Consulting Gmbh | Variable valve lift control for a combustion engine with a bottom camshaft |
DE10323665B4 (en) * | 2003-05-14 | 2009-02-05 | Hydraulik-Ring Gmbh | Variable valve lifting device for stroke adjustment of the gas exchange valves 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 |
CN100417788C (en) * | 2004-08-31 | 2008-09-10 | 丰田自动车株式会社 | Variable valve gear |
DE502006008907D1 (en) | 2005-03-03 | 2011-03-31 | Hydraulik Ring Gmbh | VARIABLE MECHANICAL VALVE CONTROL OF AN INTERNAL COMBUSTION ENGINE |
DE102005010182B4 (en) * | 2005-03-03 | 2016-05-25 | Kolbenschmidt Pierburg Innovations Gmbh | Variable mechanical valve control of an internal combustion engine |
DE102006013915A1 (en) * | 2006-03-25 | 2007-09-27 | Daimlerchrysler Ag | Adjustment of camshaft action on motor valves uses two setting units, in contact with control curves with two degrees of freedom with relative movements between them |
DE102006018510A1 (en) * | 2006-04-21 | 2007-10-25 | Schaeffler Kg | Swinging arm for stroke-variable valve gear of internal combustion engine, has stroke area, where maximum width of stroke area is formed larger or equal to maximum width of idle-stroke area and larger than minimum width of idle-stroke area |
DE102007048931A1 (en) | 2007-10-12 | 2009-01-29 | Daimler Ag | Valve gear device for internal-combustion engine, has stroke adjuster including intermediate shaft around which cam shaft changing valve elevation curve is supported and is movable along cam follower element |
JP5515772B2 (en) * | 2010-01-21 | 2014-06-11 | トヨタ自動車株式会社 | Control device for variable valve mechanism |
DE102010048707A1 (en) | 2010-10-19 | 2012-04-19 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanical controllable valve train arrangement for combustion engine, has bearing units comprising rocker arm arrangement for performing phase displacement between adjacent gas shuttle valves that are associated with respective cylinders |
DE102010048708A1 (en) * | 2010-10-19 | 2012-04-19 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanically controllable valve train |
DE102010048709B4 (en) | 2010-10-19 | 2013-01-03 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanically controllable valve drive and mechanically controllable valve train arrangement |
DE102011009417A1 (en) | 2011-01-25 | 2012-07-26 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanically controllable valve train arrangement |
DE102011009416B4 (en) | 2011-01-25 | 2016-11-03 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanically controllable valve train arrangement |
DE102011082227A1 (en) * | 2011-09-07 | 2013-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Setting for a variable stroke valve train in a cylinder head of an internal combustion engine |
DE102012001633A1 (en) | 2012-01-30 | 2013-08-01 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanically controllable valve train arrangement |
DE102012109538A1 (en) | 2012-10-08 | 2014-04-10 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanically controllable valve drive for a reciprocating engine |
DE102013013913A1 (en) | 2013-08-16 | 2015-02-19 | Alfred Trzmiel | Valve control for a gas exchange valve of an internal combustion engine |
DE102013109414A1 (en) * | 2013-08-29 | 2015-03-05 | Fev Gmbh | Valve control for an internal combustion engine and internal combustion engine |
DE102014013664A1 (en) | 2014-09-16 | 2016-03-17 | Promescon Gmbh | Valve drive device for the independent fully variable opening time adjustment of the gas exchange valves of an internal combustion engine |
DE102017103571A1 (en) | 2016-03-14 | 2017-09-14 | FEV Europe GmbH | Valve control device for an internal combustion engine and internal combustion engine |
DE102017010069A1 (en) | 2017-10-29 | 2019-05-02 | Promescon Gmbh | Mechanically fully variable valve train for a gas exchange valve of an internal combustion engine |
DE102018130428A1 (en) * | 2018-11-30 | 2020-06-04 | Bayerische Motoren Werke Aktiengesellschaft | Variable valve train with at least two working positions |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944191C (en) * | 1953-09-24 | 1956-06-07 | Augsburg Nuernberg A G Zweigni | Control, especially valve control for steam engines |
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 |
DE19913742A1 (en) * | 1999-03-26 | 2000-09-28 | Bayerische Motoren Werke Ag | Device for stroke adjustment of a gas exchange valve in the cylinder head of an internal combustion engine |
EP1096115A1 (en) * | 1999-10-29 | 2001-05-02 | STS System Technology Services GmbH | Mechanically controlled intake valve lift in an internal combustion engine |
-
2001
- 2001-08-13 DE DE10140635A patent/DE10140635B4/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944191C (en) * | 1953-09-24 | 1956-06-07 | Augsburg Nuernberg A G Zweigni | Control, especially valve control for steam engines |
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 |
DE19913742A1 (en) * | 1999-03-26 | 2000-09-28 | Bayerische Motoren Werke Ag | Device for stroke adjustment of a gas exchange valve in the cylinder head of an internal combustion engine |
EP1096115A1 (en) * | 1999-10-29 | 2001-05-02 | STS System Technology Services GmbH | Mechanically controlled intake valve lift in an internal combustion engine |
Also Published As
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