WO2012175070A1 - Levier basculant et moteur à combustion interne pourvu d'un tel levier - Google Patents

Levier basculant et moteur à combustion interne pourvu d'un tel levier Download PDF

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Publication number
WO2012175070A1
WO2012175070A1 PCT/DE2012/000632 DE2012000632W WO2012175070A1 WO 2012175070 A1 WO2012175070 A1 WO 2012175070A1 DE 2012000632 W DE2012000632 W DE 2012000632W WO 2012175070 A1 WO2012175070 A1 WO 2012175070A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
lever
axis
drag lever
drag
Prior art date
Application number
PCT/DE2012/000632
Other languages
German (de)
English (en)
Inventor
Severin Moosmann
Original Assignee
Neumayer Tekfor Holding Gmbh
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 Neumayer Tekfor Holding Gmbh filed Critical Neumayer Tekfor Holding Gmbh
Publication of WO2012175070A1 publication Critical patent/WO2012175070A1/fr

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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets

Definitions

  • the invention relates to a drag lever arrangement, with at least one drag lever, which has a cam follower body and a roller, wherein the cam follower body has a longitudinal axis, wherein the roller is rotatably mounted about an axis of rotation in the cam follower body, wherein the longitudinal axis and the axis of rotation substantially perpendicular one another, and wherein the roller is configured and supported such that the roller is displaceable along the axis of rotation, and with at least one displacement arrangement for displacing the roller along the axis of rotation. Furthermore, the invention relates to an internal combustion engine, with at least one camshaft, the at least one
  • cam profiles and having at least one finger follower arrangement, wherein the cam follower of the finger follower arrangement is associated with the cam combination.
  • the opening and closing behavior of the valves is determined by the cam of the camshafts.
  • the rotating cams act via cam followers - e.g. in the form of tipping, towing or rocking lever - on the valves.
  • the most tongue-shaped rocker arms consist of a
  • Rocker arm body in which a roller is placed, which comes into contact with the camshaft (e.g., DE 198 16 020 A1).
  • An alternative embodiment of a finger lever is described in the published patent application DE 10 2008 029 333 A1.
  • the drag lever body has a valve-side end, with which it acts on the valve, and a support-side end, via which the drag lever is supported via a valve clearance compensation element on the cylinder head of the internal combustion engine. Between the two ends is a roller which is in contact with a cam of the camshaft.
  • camshaft adjusters are known, via which the
  • Opening behavior of the valves of the internal combustion engine provide.
  • the role are assigned to the camshaft two different cams. Depending on the axial position of the roller along the camshaft, the roller follows the course of one or the other cam. The same describes the published patent application JP 6-182322 A. A likewise variable with respect to the axial position roller, which are associated with two different cams, can be found in the published patent application DE 10 2007 049 074 A1.
  • the role essentially consists of two parts. An end wall with an annular collar which comes into contact with the cams and a cylinder together enclose a pressure medium space which can be pressurized to move the end wall axially against a spring.
  • JP Publication 5-44410 A describes a cam follower which controls two valves and whose axially displaceable roller is associated with two different cams.
  • the axial movement is realized by a spring on one side and a pressure chamber on the other side of the roller.
  • An alternative implementation for generating the axial movement of the roller between two cams describes the
  • Laid-open JP 6-212924 A For the role is stored on an axially movable support, which is provided with a movable pin. Opposite the pin on the camshaft is a cam with a profile into which the pin can be inserted. The profile is designed so that the pin is moved axially by a rotation of the camshaft and thereby displaces the carrier of the roller.
  • a disadvantage of this configuration is that so the structure of the camshaft must be fundamentally changed and that in addition to the exact alignment of the actual cam and the profile cam must be aligned in relation to the pin.
  • the arrangements for moving the rollers according to the prior art thus often consist of sensitive components such as springs or prone and located near the engine units such as pressure chambers. Other configurations can significantly change the basic structure of the engine or the periphery.
  • the object of the invention is to propose a finger follower arrangement, which allows a simple and robust variant for moving the roller relative to at least two cams or cam profiles.
  • This object is achieved by the invention by a drag lever arrangement and an associated internal combustion engine with a drag lever arrangement.
  • the drag lever assembly according to the invention in which the previously derived and indicated object is achieved, is initially and essentially thereby
  • the adjusting lever on a first end and a second end and the roller and the first end are mechanically coupled together. Furthermore, the roller and the adjusting lever are configured, coordinated and arranged relative to one another such that a movement of the second end via the first end causes a displacement of the roller. The axial movement of the roller along its axis of rotation is thus over a
  • Displacement arrangement causes, is provided in the at least one adjusting lever.
  • the adjusting lever is mechanically coupled at one end to the roller so that a mechanical movement or force is transmitted between the end and the roller.
  • Designation End is to be understood broadly and refers generally to a region of the control lever, which is oriented in the direction of the respective end of the control lever.
  • the adjusting lever itself is rotatable about a point on the longitudinal axis of the cam follower body, which is oriented substantially perpendicular to the axis of rotation of the roller. Therefore, if one end of the control lever is moved, the rotates
  • the adjusting lever and the associated elements of the finger follower arrangement are preferably designed and arranged such that an axial force acts on the adjusting lever (For example, parallel to the axis of rotation) and that the roller is also moved axially.
  • the roller can be displaced in such a way that it interacts with the desired cam contour or the desired cam independently of the follower lever body due to the axial displaceability of the roller of the follower lever.
  • the roller is displaceable in particular in the drag lever body along the axis of rotation or the carrier axis.
  • the carrier axis is designed, for example, as a rod, which by a
  • Carrier axle fixedly arranged in the drag lever body.
  • the carrier axis is in particular fixedly fixed in relation to an axial movement along its own longitudinal axis or thus along the axis of rotation.
  • the first end-that is, the end facing the roller-of the actuating lever is configured substantially U-shaped. Between the two edges of the U-shaped first end of the actuating lever, the roller is arranged. In one variant, the interaction between the flanks and the roller leads to the displacement of the roller along its axis of rotation.
  • the roller is displaceably arranged on a carrier axis of the drag lever body, the two flanks of the U-shaped first end of the actuating lever each have a recess and the carrier axis is passed through the recesses of the two flanks.
  • the flanks of the first end of the actuating lever comprise the roller and are guided over their recesses on the carrier axis.
  • Longitudinal groove configured, wherein a width of the longitudinal groove is greater than or equal to an outer diameter of the support axis. In one embodiment, both are
  • the two flanks each have an (inner) side facing the roller, in each case one-in particular hemispherically configured-elevation pointing in the direction of the roller.
  • the flanks act on a hemisphere on the role or in an embodiment on the outer collar of a bearing on which the roller rests on the carrier axis, so that the force from the edge only on the Bearing and not directly or directly affects the role itself.
  • the adjusting lever has an essentially flat center section, wherein the two flanks are angled at a predeterminable angle to a plane in which the center section is substantially arranged. The flanks are thus almost worked up or down. In one embodiment, the flanks are in particular substantially perpendicular to the plane of the middle section.
  • the basic form of the control lever is included
  • the second end of the actuating lever is mechanically coupled to a control unit generating at least one movement.
  • Coupling means that a mechanical force is applied from the control unit to the second end of the control lever, e.g. in the form of a movement generated by the control unit is transferable.
  • the movement generated by the control unit runs essentially parallel to the axis of rotation of the roller.
  • Control unit has, for example, an actuator in the form of a Electric motor or a hydraulic unit, which is preferably arranged adjacent to the motor and generates a movement.
  • the second end of the actuating lever on at least one recess through which a pin (other name is: pin) of the control unit
  • connection and Ausforniung of lever and pin are, for example, such that the pin takes the lever and moves it.
  • the second end of the actuating lever is angled in a further embodiment at a predeterminable angle to the plane in which the central portion is disposed substantially, wherein the first end and the second end are angled in a same direction perpendicular to the plane.
  • both ends of the example substantially tongue-shaped actuating lever are angled in the same direction.
  • one end is "up” and the other "down” angled relative to the plane in which the substantially flat central portion lies.
  • the carrier axis is fixed - and thus in particular axially immovable - arranged in the drag lever body.
  • the roller between the valve-side end and the support-side end is arranged and there is provided a valve clearance compensation element which is connected to the support-side end.
  • the valve-side end acts in particular on the valve associated with the cam follower or the associated valves.
  • the adjusting lever is rotatably disposed about the valve lash adjuster.
  • the previously derived and indicated object is achieved in a further teaching of the invention in an internal combustion engine in that at least one finger lever assembly is provided according to at least one of the aforementioned embodiments and that the at least one rocker arm such a rocker arm assembly of a cam combination with at least two different Cam and / or cam profiles of the camshaft of the internal combustion engine is assigned.
  • cam profiles interact with the drag lever and thus lead to a different one
  • the camshaft has a
  • Longitudinal axis is arranged axially fixed relative to the drag lever body of the drag lever.
  • the drag lever body has a fixed axial position.
  • the camshaft is also axially fixed.
  • Camshaft can be specified in one embodiment for the finger follower arrangement, that a length of at least one configured as a longitudinal groove recess of the two flanks greater than or equal to a maximum through the
  • the longitudinal groove is or the longitudinal grooves are designed such that the carrier axis relative to the actuating lever or to the or the flanks freely and without
  • Moving motion can move.
  • FIGS. 1 shows a plan view of a drag lever
  • Fig. 2 a plan view of components of an inventive
  • FIG. 3 a plan view for the description of the invention
  • FIG. 4 shows a section through the arrangement of FIG. 3 along the axis AA, FIG.
  • FIG. 5 shows a plan view of FIG. 3 with the drawn axis AA
  • FIG. 6 shows the plan view of FIG. 5 without showing the camshaft.
  • a drag lever 1 is shown.
  • the left side of the rocker arm body 2 serves to rest on a support element or a hydraulic valve clearance compensation.
  • the right side serves to actuate a valve of an internal combustion engine.
  • the rocker arm body 2 serves to rest on a support element or a hydraulic valve clearance compensation.
  • the right side serves to actuate a valve of an internal combustion engine.
  • Drag lever body 2 designed substantially symmetrically to its longitudinal axis 3.
  • the drag lever body 2 has a recess 6 in which a carrier axis 7 for the roller 4 is located here.
  • the support shaft 7 forms in this embodiment, the axis of rotation 5, about which the roller 4 for a rotatable and along which the roller 4 to the other slidably disposed.
  • the carrier axis 7 is axially fixed within the drag lever body 2. Since the respective cam or the respective cam profile acts on the drag lever 1 via the roller 4, depending on the axial position of the roller 4, a special cam or cam profile can be selected and used for the control of the valve connected to the finger lever 1.
  • the drag lever body 2 is fixed in one embodiment, in particular axially relative to the camshaft.
  • a suitable mounting and a suitable actuator are preferably provided for the displacement of the roller 4.
  • Fig. 2 shows parts of an internal combustion engine according to the invention.
  • Drag lever 1 is configured here according to FIG. 1. It is recognizable, the drag lever 1 has contact on one side with the valve 13 and on the other side with a support element in the form of a valve play compensation element 14.
  • On the camshaft 10 are here two cam combinations 11, each having two differently configured cams and thus can cause a different closing and opening behavior of each associated valve 13.
  • the camshaft 10 rotates during operation of the internal combustion engine about its longitudinal axis 12, which is parallel to the axis of rotation 5 of the finger lever 1.
  • the drag lever body 2 is fixed axially relative to the longitudinal axis 12 of the camshaft 10. Due to the axial displacement of the roller 4 of the
  • FIG. 3 shows a drag lever arrangement consisting of the drag lever 1 and the displacement arrangement 20 as part of an internal combustion engine.
  • Rocker arm body 2 rests with the valve-side end 33 on the valve 13 and is supported with the support-side end 34 of the lash adjuster 14 on the engine block.
  • the roller 4 arranged between the two ends 33, 34 thereby comes into contact with the cam combination 11 of the camshaft 10.
  • the roller 4 is axially displaceable along the carrier axis 7 within the drag lever body 2, wherein the
  • Displacement is generated via the displacement arrangement 20.
  • the displacement assembly 20 has for this purpose via a lever 22, whose substantially flat ausgestaltetes middle part 29 of the
  • Valve play compensation element 14 is pierced, so that the adjusting lever 22 is rotatable about the lash adjuster 14. Such rotation is effected by the second end 24 of the control lever 22 with the pin 31 of
  • Control unit 30 is connected.
  • the pin 31 is thereby moved axially by an actuator, for example an electromagnetic motor or a hydraulic arrangement as part of the control unit 30.
  • an actuator for example an electromagnetic motor or a hydraulic arrangement as part of the control unit 30.
  • Camshaft 10 instead. Depending on the shape of the actuating lever 22 and the orientation between pin 31 and lever 22 but other directions of movement can achieve the particular desired rotation of the control lever 22.
  • Adjusting lever 22 shows in its substantially planar configuration and is mounted around the valve clearance compensation element 14 below the support-side end 34 of the drag lever body 2.
  • the first end 23 of the actuating lever 22 has on the flank 25 via a recess 26 configured as a longitudinal groove.
  • the guide shaft 7 is arranged, on which in turn the roller 4 is arranged via a bearing.
  • the bearing is in one embodiment along the guide shaft 7 in particular made wider than the width of the roller 4. This serves the contact with the flanks 25, so that the bearing and not the roller 4 itself is touched by the flanks, causing a tilting of the Role 4 and thus one
  • the roller 4 follows the respective contour of the cam combination 11 and thus presses on the axis of rotation 7, which is firmly connected to the cam follower body 2. Therefore In particular, the valve-side end 33 of the follower body 2 follows the cam profile and controls the valve 13 over it. Thus, this movement of the roller 4 or the axis of rotation 7 is not affected by the lever 22 or vice versa this movement does not materially fatigue acting on the lever 22 ,
  • the width of the longitudinal groove 26 corresponds at least to the outer diameter of the axis of rotation 7 and corresponds to the length of the longitudinal groove 26 at least the effective effective maximum stroke of the contours of the cam combination.
  • the first end 23 and the second end 24 of the control lever 22 are each in the same direction from the plane in which the center section 29 is located
  • the first end 23 is substantially perpendicular to the plane and the second end 24 is inclined approximately at a 45 ° angle.
  • Fig. 5 shows the arrangement of Fig. 4 in plan view.
  • the line AA which runs along the section shown in FIG. 4, is located.
  • roller 4 which is bordered by the U-shaped first end 23 of the actuating lever 22 or more precisely by the flanks 25 thereof.
  • the adjusting lever 22 is tilted in the embodiment shown between the axis of rotation of the roller 4 and the
  • Shift axis of the pin 31 of the control unit 30 is arranged. It can be seen in particular that the second end 24 of the actuating lever 22 is held within a recess of the pin 31. If the pin 31 moves axially, it follows the adjusting lever 22 with the second end 24 and rotates about the fixation about the pivot point, so that the first end 23 follows the movement and therefore entrains the roller 4 via one of its flanks 25.
  • the pin 31 would move to the right to change the valve timing. This is followed by the second end 24 of the control lever 22 and thereby the first end 23 of the control lever 22 moves to the left. As a result, the right flank 2 presses against the roller 4 or against its storage and also shifts the roller 4 to the left, so that the left contour of the cam combination 11 determines the further valve control.
  • FIG. 5 it can be seen in FIG. 6, without the camshaft, how the adjusting lever 22 moves and moves the roller 4.
  • Adjusting lever 22 is located on the longitudinal axis 3 of the follower body. 2
  • Adjusting lever 22 is allowed relative to the pin 31 and the roller 4, is given, the rotation of the control lever .22 for mediation between the two axial
  • Control lever 22 is in each case one directed in the direction of the roller 4 elevation 28.
  • the elevations 28 are preferably designed hemispherical in order to better transmit the tilting of the control lever 22 in the axial displacement of the roller 4.

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

L'invention concerne un ensemble culbuteur, comprenant un levier basculant qui présente un corps de levier basculant à axe longitudinal, et un galet monté rotatif autour d'un axe de rotation et déplaçable le long de l'axe de rotation, et un dispositif de déplacement servant au déplacement du galet le long de l'axe de rotation. L'invention est caractérisée en ce que le dispositif de déplacement présente un levier de réglage conçu et disposé pour l'entraînement en rotation autour d'un point, sur l'axe longitudinal du corps du levier basculant, en ce que le levier de réglage présente une première extrémité et une seconde extrémité, et en ce que le galet et le levier de réglage sont configurés de façon qu'ils soient ajustés entre eux et disposés l'un par rapport à l'autre, de façon qu'un déplacement de la seconde extrémité au-dessus de la première extrémité provoque un déplacement du galet. L'invention concerne en outre un moteur à combustion interne.
PCT/DE2012/000632 2011-06-20 2012-06-20 Levier basculant et moteur à combustion interne pourvu d'un tel levier WO2012175070A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011105489 2011-06-20
DE102011105489.1 2011-06-20

Publications (1)

Publication Number Publication Date
WO2012175070A1 true WO2012175070A1 (fr) 2012-12-27

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ID=47228560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/000632 WO2012175070A1 (fr) 2011-06-20 2012-06-20 Levier basculant et moteur à combustion interne pourvu d'un tel levier

Country Status (2)

Country Link
DE (1) DE102012012150B4 (fr)
WO (1) WO2012175070A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011121104A1 (de) 2011-12-14 2013-06-20 Neumayer Tekfor Holding Gmbh Motorkomponente
GB2545006A (en) * 2015-12-03 2017-06-07 Eaton Srl Valve train with variable valve actuation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016059456A1 (fr) * 2014-10-15 2016-04-21 Shanghai Universoon Auto Parts Co., Ltd. Procédé et système de freinage moteur
DE102016210973A1 (de) * 2016-06-20 2017-12-21 Mahle International Gmbh Ventiltrieb für eine Brennkraftmaschine
DE102017205540A1 (de) * 2017-03-31 2018-10-04 Mahle International Gmbh Ventiltrieb für eine Brennkraftmaschine

Citations (10)

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JPS60233306A (ja) * 1984-05-02 1985-11-20 Suzuki Motor Co Ltd 内燃機関のバルブタイミング切換え装置
JPH0544410A (ja) 1991-08-06 1993-02-23 Fuji Oozx Kk 可変バルブタイミングリフト機構用ロツカアーム
JPH06182322A (ja) 1992-08-04 1994-07-05 Sosuukai:Kk 湿ゴミ乾燥装置
JPH06212924A (ja) 1993-01-20 1994-08-02 Otix:Kk 可変動弁機構
DE19700736A1 (de) 1997-01-11 1998-07-23 Porsche Ag Ventiltrieb einer Brennkraftmaschine
DE19816020A1 (de) 1998-04-09 1999-10-14 Volkswagen Ag Schlepphebel
DE102007049074A1 (de) 2007-10-12 2009-04-16 Schaeffler Kg Nockenfolger zur variablen Betätigung eines Gaswechselventils einer Brennkraftmaschine
DE102008029333A1 (de) 2008-06-20 2009-12-24 Schaeffler Kg Vorrichtung zur Abschaltung von Gaswechselventilen einer Brennkraftmaschine mit Schlepphebeln
DE102010025099A1 (de) 2010-06-25 2011-12-29 Neumayer Tekfor Holding Gmbh Nockenwelle
DE102010025100A1 (de) 2010-06-25 2011-12-29 Neumayer Tekfor Holding Gmbh Verstellbare Nockenwelle

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DE688396C (de) 1938-03-11 1940-02-19 Bosch Gmbh Robert Anlassvorrichtung fuer Brennkraftmaschinen
JPH06185322A (ja) 1992-12-22 1994-07-05 Aisin Seiki Co Ltd エンジンの動弁装置
DE102005053607A1 (de) 2005-11-10 2007-05-16 Schaeffler Kg Ventiltrieb einer Brennkraftmaschine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60233306A (ja) * 1984-05-02 1985-11-20 Suzuki Motor Co Ltd 内燃機関のバルブタイミング切換え装置
JPH0544410A (ja) 1991-08-06 1993-02-23 Fuji Oozx Kk 可変バルブタイミングリフト機構用ロツカアーム
JPH06182322A (ja) 1992-08-04 1994-07-05 Sosuukai:Kk 湿ゴミ乾燥装置
JPH06212924A (ja) 1993-01-20 1994-08-02 Otix:Kk 可変動弁機構
DE19700736A1 (de) 1997-01-11 1998-07-23 Porsche Ag Ventiltrieb einer Brennkraftmaschine
DE19816020A1 (de) 1998-04-09 1999-10-14 Volkswagen Ag Schlepphebel
DE102007049074A1 (de) 2007-10-12 2009-04-16 Schaeffler Kg Nockenfolger zur variablen Betätigung eines Gaswechselventils einer Brennkraftmaschine
DE102008029333A1 (de) 2008-06-20 2009-12-24 Schaeffler Kg Vorrichtung zur Abschaltung von Gaswechselventilen einer Brennkraftmaschine mit Schlepphebeln
DE102010025099A1 (de) 2010-06-25 2011-12-29 Neumayer Tekfor Holding Gmbh Nockenwelle
DE102010025100A1 (de) 2010-06-25 2011-12-29 Neumayer Tekfor Holding Gmbh Verstellbare Nockenwelle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011121104A1 (de) 2011-12-14 2013-06-20 Neumayer Tekfor Holding Gmbh Motorkomponente
WO2013087059A1 (fr) * 2011-12-14 2013-06-20 Neumayer Tekfor Holding Gmbh Composant de moteur
GB2545006A (en) * 2015-12-03 2017-06-07 Eaton Srl Valve train with variable valve actuation
GB2545033A (en) * 2015-12-03 2017-06-07 Eaton Srl Valve train with variable valve actuation

Also Published As

Publication number Publication date
DE102012012150B4 (de) 2022-01-13
DE102012012150A1 (de) 2012-12-20

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