EP2176524B1 - Brennkraftmaschinenventiltriebumschaltvorrichtung - Google Patents

Brennkraftmaschinenventiltriebumschaltvorrichtung Download PDF

Info

Publication number
EP2176524B1
EP2176524B1 EP08801531.8A EP08801531A EP2176524B1 EP 2176524 B1 EP2176524 B1 EP 2176524B1 EP 08801531 A EP08801531 A EP 08801531A EP 2176524 B1 EP2176524 B1 EP 2176524B1
Authority
EP
European Patent Office
Prior art keywords
switching
switching means
unit
units
switching units
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.)
Active
Application number
EP08801531.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2176524A1 (de
Inventor
Alexander Von Gaisberg-Helfenberg
Jens Meintschel
Thomas Stolk
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.)
Mercedes Benz Group AG
Original Assignee
Daimler 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 Daimler AG filed Critical Daimler AG
Publication of EP2176524A1 publication Critical patent/EP2176524A1/de
Application granted granted Critical
Publication of EP2176524B1 publication Critical patent/EP2176524B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven 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
    • 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
    • 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
    • F01L2013/0052—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 with cams provided on an axially slidable sleeve

Definitions

  • the invention relates to an internal combustion engine valve drive switching device according to the preamble of claim 1.
  • the switching unit has an execution unit with a switching unit and two switching means, wherein the switching means actuate the switching unit.
  • the switching unit has an execution unit with two switching units and two switching means, wherein the switching means actuate the switching units simultaneously.
  • the switching unit has an execution unit with a switching unit and a switching means, wherein the switching means actuates the switching unit.
  • the US 2007/0034184 A1 discloses a valve train for an internal combustion engine.
  • the invention has the object of providing a valve train switching device in such a way that both construction volume and weight as well as costs can be saved at a high reliability.
  • the object is achieved in each case by the features of the independent patent claim, wherein further embodiments of the invention can be taken from the subclaims.
  • the invention is based on an internal combustion engine valve drive switching device with a switching unit.
  • the switching unit has an execution unit with two switching units and two switching means, which is provided to actuate the at least two switching units at least partially offset in time in at least one operating mode.
  • a “switching unit” is to be understood in particular as meaning a unit which is intended to effect a switching operation of at least one valve drive.
  • Provisioned is to be understood in particular to be specially equipped and / or designed.
  • An “execution unit” is to be understood in particular as a unit which carries out at least one operation based on a signal once and which in particular from mechanical, quantum mechanical, electrical and / or electromagnetic components and in particular also from electronic components, if these at least negligible and particularly advantageous not affect, may be formed.
  • switching unit is to be understood in particular as meaning a unit which is intended to effect a switching operation, in particular also in cooperation with at least one switching means or another unit.
  • switching means is to be understood in particular a means which is intended to effect a switching operation, in particular also in cooperation with at least one switching unit or another unit.
  • the switching units are designed as axially displaceable sections of a camshaft with cams with at least partially different contour. In this way, a switching unit can immediately perform a switching operation on a cam.
  • a "cam” is intended in particular to mean a curved projection on a shaft which rotates in an operating mode and which may be designed as a camshaft. Under a “at least partially differently shaped contour" should In particular, a different extent of the projections of different cams and / or a cam can be understood.
  • the switching units form a first control link and a second control link, wherein a first of the switching means is radially retractable into the first control link.
  • the switching units are successively, axially and relative to the switching means displaceable in a first direction.
  • the second switching means is radially retractable into the second control link, whereby the switching units successively, axially and relative to the switching means in a first direction opposite to the second direction are displaced.
  • the execution unit is provided to actuate the switching units in at least one operating mode independently of one another, at least as a function of the positions of the switching units relative to the switching means.
  • the number of required switching means can be further reduced.
  • the fact that the execution unit "actuates" a switching unit should in particular mean cooperation and / or interaction of the execution unit or parts of the execution unit with the switching unit, which can bring about a switching operation. More specifically, by referring to the execution unit operating the switching units "independently", it is meant that operation of a switching unit by the execution unit does not affect operation of another switching unit by the execution unit.
  • An "operating mode” is to be understood in particular as a type of operation.
  • the execution unit can comprise an electronic evaluation unit and be provided to carry out a second switching operation on the basis of at least one signal, a first switching operation and then, depending on an electronic evaluation, a second switching operation.
  • the execution unit is particularly advantageously provided for carrying out a first switching operation on the basis of at least one signal and then for carrying out a second switching operation independently of an electronic evaluation.
  • a "signal" is intended in particular to mean a triggering process and / or a sign, such as a current pulse, with a defined meaning and / or an application and / or positioning of a mechanical component in a switching position and / or mechanical interaction initiated from outside the execution unit be understood.
  • a "triggering process” is to be understood in particular as a mechanical, electrical, quantum-mechanical and / or electromechanical process, which in particular results in a specific positioning a switching means can drive.
  • a “switching operation” should be understood in particular to mean a relative movement and in particular an axial relative movement between two components. So that a switching operation takes place “after” another switching operation, should be understood in particular that the switching operations take place at least partially offset in time and / or are particularly advantageous time overlap.
  • An electronic “evaluation” is intended in particular to mean an electronic classification and / or evaluation of a state and / or a signal and / or a process. By performing "independently" of an electronic evaluation, it is intended in particular to mean an automated execution in a mechanical, quantum mechanical, electrical and / or electromagnetic manner. With an embodiment according to the invention, a simple construction of the switching unit can be achieved.
  • the execution unit is at least partially designed as a mechanical unit. This can save design costs.
  • the execution unit is at least partially designed as a transmission.
  • the transmission can be designed in particular as a cam gear.
  • the expert appear appropriate sense gearbox conceivable, such as gear transmission, lever mechanism, hydraulic transmission, etc.
  • the execution unit is provided to effect a switching of a valve drive and / or a change of at least one valve lift curve and / or switching off at least one valve and / or at least one change of operating modes of an internal combustion engine.
  • a "valve train” is to be understood, in particular, as a structural unit which is intended to allow, at least in part, a gas exchange in internal combustion engines which are based on a reciprocating piston engine.
  • a "switching over" of a valve train should in particular be understood to mean a change process for changing at least one property and / or at least one function of the valve train and / or changing between different operating modes.
  • valve lift curve is meant the graph of the function obtained by measuring the valve lift, which is measured relative to the cylinder to which the valve is associated, above the rotation angle of the drive shaft associated with the valve train in a Cartesian coordinate system applying.
  • different modes of operation should In particular, the operation of valves with different timing and / or valve lift curves to be understood.
  • a “change of operating modes” is to be understood here in particular as meaning the operation of the internal combustion engine at full load, at partial load, in auto-ignition mode, with cylinder deactivation, with early or late inlet closure or further modes of operation which appear reasonable to the person skilled in the art.
  • the execution unit is provided to actuate one of the switching units in dependence on at least one change in position of at least one of the switching units relative to the switching means.
  • the number of required switching units and the number of necessary switching means can be reduced.
  • switching direction is to be understood in particular a direction in which a component is moved relative to the switching means in an at least partially caused by the switching means switching operation, in particular is moved in translation.
  • superimposed movements such as translational and rotational movements are also conceivable.
  • the switching means corresponds to the switching units and the switching units are at least partially decoupled in their movement.
  • the switching units can be moved relative to the switching means in different directions.
  • one switching unit may rest relative to the switching means while another switching unit moves relative to the switching means.
  • a switching unit "corresponding" to the switching means should be understood to mean a switching unit which is designed such that it allows a switching operation in cooperation with the switching means.
  • Switching units which are at least partially “decoupled” in their movement should, in particular, be understood as switching units for which at least one movement of a switching unit relative to the other switching unit runs independently of the latter in at least one operating mode.
  • the execution unit is provided to actuate the switching units in at least one operating mode at the same time.
  • the execution unit is provided to actuate the switching units in at least one operating mode at the same time.
  • a switching means can actuate two switching units at least partially decoupled.
  • the execution unit has at least two control means, which are positioned on mutually facing ends of the at least two switching units of the execution unit.
  • a "control means" is to be understood in particular as means for controlling a process, in particular for controlling a switching operation.
  • the switching units may be associated with different valves, which in particular may be associated with different cylinders. For a particularly flexible circuit, the switching units can be associated with only one valve.
  • a “control link” is to be understood in particular at least one molding or several moldings together with their boundaries, which are intended to guide a switching means in at least one switching operation, and individually or together over a certain angular range, as preferably over more than 10 °, advantageously over more than 80 ° and more preferably over more than 180 °, extend in the circumferential direction of a drive shaft or connected to a drive shaft component, wherein the formations may be spatially separated from each other and this spatial separation can be canceled by a switching operation.
  • a “shaping” should in particular be understood to mean an elevation or a recess which may have various forms of extension that appear appropriate to the person skilled in the art, such as, in particular, an elongated extension shape.
  • a molding may in particular be a slot or a groove.
  • a "slot” is to be understood in particular a narrow recess.
  • a “survey” is meant in particular an elevated location compared to the area surrounding the site and / or a bulge meant.
  • control link is designed such that the switching units can be actuated by the switching means in a defined switching sequence.
  • control scenes can be used in a continuous operation.
  • a "defined switching sequence” is understood in particular to take place according to a defined sequence and at least partially offset in time and / or separate switching operations which are particularly suitable for a permanent operation with at least two occurring defined switching sequences.
  • control link is intended to effect a switching of a valve train by interacting with the switching means.
  • a reliable change of valve lift curves can be achieved.
  • the switching unit has at least one control means, wherein the control means is provided to change due to an interaction with the switching means at least one function of the switching unit and / or the switching means.
  • a compact switching structure can be achieved.
  • a "function" is meant in particular a mode of action and in particular a mode of action in an interaction with another structural unit, which may be, for example, the switching means or the switching unit.
  • an advantage may be achieved by the function of immersing the switching means in the switching unit and / or pushing out the switching means from the switching unit and / or operating the switching unit by the switching means and / or switching the switching means from a switching unit another switching unit and / or calming the movement of a switching unit is.
  • an effective mechanical switching device can be realized.
  • a "dipping" of the switching means in the switching unit in particular a retraction of trained as a survey or pen as switching means should be meant in a groove or a slot of a switching unit.
  • By “pushing out” of the switching means from the switching unit in particular the removal of the switching means designed as an elevation or as a pin should be understood by pushing out of the groove or the slot of the switching unit.
  • a “calming down” of the movement of a switching unit should also be understood to mean an immobilization of the switching unit relative to the switching means after a movement of the switching unit relative to the switching means.
  • the control link is intended to be acted upon by the switching means in at least one radial direction. This allows a structurally simple interaction between switching means and control link can be achieved.
  • a "radial direction” is to be understood in particular a direction radially with respect to a drive shaft.
  • By a “Beaufmut” of the control link by the switching means to be meant in particular that the switching means is provided to a Motion to impinge on a shape of a control link and / or to act with a force.
  • the execution unit has a camshaft and at least a majority of those shifting units, by which valve lift curves of valves associated with the camshaft are changeable, and that the shifting units are intended to be operated by the shifting means.
  • a coherent switching can be achieved.
  • at least fifty percent, in particular at least seventy percent, and particularly advantageously at least ninety percent, of the total number should be meant by a "majority”.
  • a valve should in particular be "assigned" to a camshaft when the valve is indirectly or directly opened and / or closed by means of the camshaft.
  • the switching means is designed as a switching pin.
  • the switching means is designed as a switching pin.
  • the switching unit and at least one switching means are provided to effect by an interaction with each other an axial displacement of the switching unit relative to the switching means and thereby switching a valve train.
  • the valve train can be switched in a structurally simple way.
  • An "axial" displacement of the switching unit should in particular be understood to mean a displacement of the switching unit in a main extension direction of a drive shaft, which may be a camshaft.
  • Fig. 1 shows an internal combustion engine valve drive switching device with a switching unit 36, the two actuators 64, 65, a camshaft 46 and a Execution unit 38 which is intended to perform a second switching operation on the basis of a signal, a first switching operation and then independently of an electronic evaluation.
  • the execution unit 38 has exclusively mechanical components.
  • the execution unit 38 comprises two switching means 3, 4, each formed by a switching pin, which can be actuated by the actuators 64, 65 or moved out of the actuators 64, 65.
  • the execution unit 38 comprises switching units 1, 2, which are parts of the camshaft 46.
  • the switching units 1, 2 have a common main extension direction, which coincides with a main extension direction of the camshaft 46.
  • the switching means 3, 4 also have a common main extension direction which extends radially to the camshaft 46 and to the switching units 1, 2.
  • the switching means 3, 4 are each provided to actuate the two switching units 1, 2.
  • a switching means 3, 4 which takes place in its main direction of extension to the switching units 1, 2, first a loading of a switching unit 1, 2 and then an interaction between the switching means 3, 4 and the switching units 1, 2 takes place, which based on the Fig. 4a to Fig. 19b is described and due to which an axial displacement of the switching units 1, 2 takes place relative to the switching means 3, 4 along the main extension direction of the switching units 1, 2.
  • With the axial displacement of the switching units 1, 2 is an axial displacement of belonging to the switching units 1, 2 cams 7, 8, 48, 50, 26, 27, 28, 29, 30, 31 instead.
  • the cams 7, 8 and 48, 50 have a different contour such that the maximum radial extent of the cams 8, 50 differs from the maximum radial extent of the cams 48, 7.
  • both switching means 3, 4 can each have those switching units 1, 2, through which valve lift curves of valves, that of the camshaft 46 are assigned, are changeable, press.
  • the switching unit 1 has a control means 52 which through sections 9, 11, 13, 16, 18 (see Fig. 3 ), which are formed by four grooves is formed. Furthermore, the switching unit 2 has a control means 54, which by sections 10, 12, 14, 15, 17 (see Fig. 3 ), which are formed by four grooves is formed.
  • the control means 52, 54 are positioned in end regions or on ends 56, 58 of the switching units 1, 2, which face each other in the main extension direction of the camshaft 46 and are directly adjacent.
  • the control means 52, 54 form two control slots 5, 6, which in the Main extension direction of the camshaft 46 are arranged one behind the other.
  • the control scenes 5, 6 are thus each formed by the two switching units 1, 2.
  • the switching means 3, 4 are arranged so that they can act on the control gates 5, 6 in the radial direction in a switching operation.
  • the switching means 3, 4 are arranged along the main direction of extension of the camshaft 46 in the same sequence as the control tracks 6, 5 one behind the other.
  • the switching means 3 can act on the control link 6 and the switching means 4, the control link 5.
  • Fig. 2 shows a development of one of the control blocks 5 or 6, which extends over more than one camshaft revolution, and about 540 °. In principle, other angle ranges which appear reasonable to the person skilled in the art are also conceivable.
  • each of the control slots 5, 6 allows a change of the switching means 3, 4 during a switching operation from one switching unit 2 to another switching unit 1 and back.
  • Fig. 3 schematically shows a plan view of the developments of the control blocks 5 and 6, which form a gear 42 which is formed as a cam gear.
  • the settlement of the two control scenes 5, 6 is formed by two L-shaped parts of a settlement of the switching units 1, 2, which have a rectangular shape between two switching operations, in which different switching means 3, 4 are involved.
  • An L-shaped part comprises in each case two halves of the control slots 5, 6, which belong to different control slots 5, 6.
  • the control blocks 5, 6 have the sections 9 to 18, which cause different functions of the switching means 3, 4 and / or the switching units 1, 2 in interaction with the switching means 3, 4, wherein the different sections 9 to 18 of the control blocks 5, 6 as a function of the angle of rotation of the camshaft 46 (see Fig. 1 ) come into operative connection with the switching means 3, 4.
  • the sections 9 to 18 are immersion sections 9 and 10, operating sections 11 and 12, Ausschiebeabête 13 and 14, transition sections 15 and 16 and reassurance sections 17 and 18.
  • the functions is a dipping of the switching means 3, 4 in the immersion portion 9, 10 of the control link 5 or 6, a pushing out of the switching means 3, 4 from a Ausschiebeabêt 13, 14 of the control link 5 or 6, pressing at least one of the switching units 1 or 2, by the switching unit 1, 2 on the im
  • Operating section 11, 12 located switching means 3, 4 is moved, a change of the switching means 3, 4 from one of the switching units 1, 2 to another switching unit 1, 2 and a calming the switching movement of the switching units 1, 2nd
  • the switching means 3, 4 come in function of the direction of rotation of the camshaft 46 with the sections 9 to 18 in different succession in operative connection.
  • Fig. 4a . Fig. 4b to Fig. 11a . Fig. 11b such as Fig. 12a . Fig. 12b to Fig. 19a .
  • Fig. 19b show on the basis of individual intermediate states, a changeover of valve trains, which by the cams 7, 8, 48, 50 of the camshaft 46 (see Fig. 1 ) are actuated by axial displacement of the two switching units 1, 2, wherein in the Fig. 4a . Fig. 4b to Fig. 11a . Fig. 11b the switching process to the right and in the Fig. 12a . Fig. 12b to Fig. 19a . Fig. 19b the shift is shown to the left.
  • the switching units 1, 2 move such that the ends 56, 58 relative to the switching means 3, 4 in the direction of the cams 48, 50 in a main extension direction 62 (see Fig. 16a and Fig. b) of the camshaft 46 move (see Fig. 1 ).
  • the switching units 1, 2 move in a direction opposite main extension direction 60 (see Fig. 5a and Fig. 5b ).
  • the switching operations to the right and to the left each consist of two switching operations in which the individual switching units 1, 2 are moved relative to the switching means 3, 4 in the axial direction.
  • a first step according to Fig. 4a and Fig. 4b is the right switching means 3 by the actuator 65 (see Fig. 1 ) is retracted into the immersion section 9 of the control link 6 due to a signal given by the actuator 65 in the form of a magnetic field.
  • a second step according to Fig. 5a and Fig. 5b is the right switching means 3 in the operating portion 12 of the control link 6 and starts the right switching unit 2 in the main extension direction 60 of the camshaft 46 (see Fig. 1 ), which is an axial direction.
  • a third step according to Fig. 6a and Fig. 6b the displacement of the right switching unit 2 is calmed and then completed.
  • a fourth step according to Fig. 7a and Fig. 7b is the right switching means 3 just before the operating portion 11 of the control link 6 of the switching unit 1.
  • a fifth step according to Fig. 8a and Fig. 8b is the right switching means 3 in the operating portion 11 of the control link 6 of the left switching unit 1 and starts with its displacement in the main extension direction 60.
  • a sixth step according to FIG Fig. 9a and Fig. 9b the displacement of the left switching unit 1 is completed.
  • a first step according to Fig. 12a and Fig. 12b is the left switching means 4 by the actuator 64 (see Fig. 1 ) is retracted into the immersion section 10 of the control link 5 due to a signal given by the actuator 64.
  • a second step according to Fig. 13a and Fig. 13b is the left switching means 4 just before the beginning of the operating portion 11 of the control link 5 in the left switching unit 1.
  • a third step according to Fig. 14a and Fig. 14b is the left switching means 4 in the operating portion 11 of the control link 5 of the left switching unit 1 and starts the left switching unit 1 in the main extension direction 62, which is also an axial direction to move.
  • a and Fig. 15b the shift of the left switch unit 1 to the left is completed.
  • a fifth step according to Fig. 16a and Fig. 16b the displacement of the right switching unit 2 in the main extension direction 62 begins to the left. In order to shift the switching units 1, 2 to the left, the switching means 4 must therefore actuate the switching units 1, 2 independently of each other.
  • a sixth step according to Fig. 17a and Fig. 17b the displacement of the right switching unit 2 is calmed and then completed.
  • a seventh step according to Fig. 18a and Fig. 18b is the left switching means 4 in the Ausschiebeabexcellent 13 of the control link 5 of the left switching unit 1 and is pushed back into the starting position in the direction of a vertical axis 20.
  • Fig. 19a and Fig. 19b is the left switching means 4 back to the starting position.
  • both switching units 1, 2 are operated simultaneously at times. The same applies to the switching process to the right.
  • the switching means 3, 4 correspond to the switching units 1, 2.
  • the two switching units 1, 2 can be actuated by the switching means 3, 4 in a defined switching sequence.
  • the switching operations to the left and to the right can therefore be repeated as often as desired in alternating order.
  • the switching units 1, 2 are brought by the control scenes 5, 6 to the immersion, actuation, change over and calm again and again in different switching states.
  • the switching units 1, 2 are shifted individually and successively in the same direction to the left or to the right.
  • the switching units 1, 2 are in their movement in the main direction of extension of the camshaft 46 (see Fig. 1 ) so partially decoupled.
  • switching operations it can be seen that by means of the left switching means 4 switching operations to the left and by means of the right switching means 3 switching operations are executed to the right.
  • each switching means 3, 4 each assigned a switching direction.
  • valve lift curves of valves which are opened and closed due to the rotation of the camshaft 46 in an operating mode, are changed. Furthermore, valves can be switched off by the switching and thus remain closed. With a change of the valve lift curves may be accompanied by a change of the operating modes of the internal combustion engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP08801531.8A 2007-08-10 2008-08-07 Brennkraftmaschinenventiltriebumschaltvorrichtung Active EP2176524B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007037746.2A DE102007037746B4 (de) 2007-08-10 2007-08-10 Brennkraftmaschinenventiltriebumschaltvorrichtung
PCT/EP2008/006489 WO2009021668A1 (de) 2007-08-10 2008-08-07 Brennkraftmaschinenventiltriebumschaltvorrichtung

Publications (2)

Publication Number Publication Date
EP2176524A1 EP2176524A1 (de) 2010-04-21
EP2176524B1 true EP2176524B1 (de) 2019-12-04

Family

ID=40029145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08801531.8A Active EP2176524B1 (de) 2007-08-10 2008-08-07 Brennkraftmaschinenventiltriebumschaltvorrichtung

Country Status (6)

Country Link
US (1) US8347838B2 (zh)
EP (1) EP2176524B1 (zh)
JP (1) JP5204844B2 (zh)
CN (1) CN101779009B (zh)
DE (1) DE102007037746B4 (zh)
WO (1) WO2009021668A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007037746B4 (de) 2007-08-10 2022-06-15 Mercedes-Benz Group AG Brennkraftmaschinenventiltriebumschaltvorrichtung
DE102007037747B4 (de) * 2007-08-10 2022-06-15 Mercedes-Benz Group AG Brennkraftmaschinenventiltriebumschaltvorrichtung
DE102007037745A1 (de) * 2007-08-10 2009-02-12 Daimler Ag Brennkraftmaschinenventiltriebumschaltvorrichtung
DE102008029325A1 (de) * 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
DE102008029349A1 (de) 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
DE102011011457A1 (de) * 2011-02-17 2012-08-23 Daimler Ag Brennkraftmaschinenventiltriebvorrichtung
DE102011056833B4 (de) * 2011-12-21 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ventiltriebvorrichtung für eine Brennkraftmaschine
DE102012004420A1 (de) * 2012-03-08 2013-09-12 Daimler Ag Kraftfahrzeugventiltriebverstellvorrichtung
DE102015014175A1 (de) * 2015-11-03 2017-05-04 Daimler Ag Ventiltriebvorrichtung
DE102016005454A1 (de) * 2016-05-03 2017-11-09 Daimler Ag Ventiltriebvorrichtung, insbesondere für eine Brennkraftmaschine
US20180094554A1 (en) * 2016-10-05 2018-04-05 GM Global Technology Operations LLC Variable camshaft
DE102018000435B4 (de) 2018-01-19 2020-12-03 Daimler Ag Ventiltrieb für eine Verbrennungskraftmaschine. insbesondere eines Kraftfahrzeugs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520117A1 (de) * 1995-06-01 1996-12-05 Porsche Ag Ventiltrieb einer Brennkraftmaschine
DE102004056290A1 (de) * 2004-11-22 2006-06-01 Audi Ag Ventiltrieb einer Brennkraftmaschine mit mindestens einer Grundnockenwelle
US20070034184A1 (en) * 2003-03-21 2007-02-15 Stefan Dengler Valve drive of an internal combustion engine comprising a cylinder head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3526757B2 (ja) * 1998-08-04 2004-05-17 本田技研工業株式会社 内燃機関用動弁装置
JP3535431B2 (ja) * 1999-12-28 2004-06-07 本田技研工業株式会社 内燃機関の動弁装置
DE10212327A1 (de) * 2001-09-11 2003-03-27 Porsche Ag Ventiltrieb für eine Brennkraftmaschine
US7182050B2 (en) * 2002-01-31 2007-02-27 Mazda Motor Corporation Control device for spark-ignition engine
DE102004008670B4 (de) * 2004-02-21 2013-04-11 Schaeffler Technologies AG & Co. KG Ventiltrieb mit Nockenumschaltung für die Gaswechselventile eines 4-Takt-Verbrennungsmotors
DE102005006489B4 (de) 2005-02-12 2015-11-19 Audi Ag Nockenwellenanordnung
DE102007037358B4 (de) 2007-08-08 2022-04-14 Daimler Ag Brennkraftmaschinenschaltvorrichtung
DE102007037747B4 (de) * 2007-08-10 2022-06-15 Mercedes-Benz Group AG Brennkraftmaschinenventiltriebumschaltvorrichtung
DE102007037745A1 (de) * 2007-08-10 2009-02-12 Daimler Ag Brennkraftmaschinenventiltriebumschaltvorrichtung
DE102007037746B4 (de) 2007-08-10 2022-06-15 Mercedes-Benz Group AG Brennkraftmaschinenventiltriebumschaltvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520117A1 (de) * 1995-06-01 1996-12-05 Porsche Ag Ventiltrieb einer Brennkraftmaschine
US20070034184A1 (en) * 2003-03-21 2007-02-15 Stefan Dengler Valve drive of an internal combustion engine comprising a cylinder head
DE102004056290A1 (de) * 2004-11-22 2006-06-01 Audi Ag Ventiltrieb einer Brennkraftmaschine mit mindestens einer Grundnockenwelle

Also Published As

Publication number Publication date
US8347838B2 (en) 2013-01-08
JP5204844B2 (ja) 2013-06-05
WO2009021668A1 (de) 2009-02-19
CN101779009B (zh) 2012-10-03
JP2010535966A (ja) 2010-11-25
DE102007037746B4 (de) 2022-06-15
US20100180843A1 (en) 2010-07-22
DE102007037746A1 (de) 2009-02-12
EP2176524A1 (de) 2010-04-21
CN101779009A (zh) 2010-07-14

Similar Documents

Publication Publication Date Title
EP2176523B1 (de) Brennkraftmaschinenventiltriebumschaltungvorrichtung
EP2176524B1 (de) Brennkraftmaschinenventiltriebumschaltvorrichtung
EP2181251B1 (de) Brennkraftmaschinenventiltriebumschaltvorrichtung
EP2459849B1 (de) Ventiltriebvorrichtung
EP2817494B1 (de) Brennkraftmaschinenventiltriebverstellvorrichtung
EP2859199B1 (de) Vorrichtung für einen ventiltrieb zum umschalten des hubs von gaswechselventilen einer brennkraftmaschine
DE102008029324A1 (de) Ventiltriebvorrichtung
WO2013131602A1 (de) Brennkraftmaschinenventiltriebverstellvorrichtung
EP2981688B1 (de) Ventiltriebvorrichtung für eine brennkraftmaschine
WO2017076482A1 (de) Ventiltriebvorrichtung
DE102011116117A1 (de) Ventiltriebvorrichtung für eine Brennkraftmaschine
WO2022034098A1 (de) Schiebenockenwellenanordnung für eine brennkraftmaschine, sowie verfahren zum schalten einer schiebenockenwellenanordnung für eine brennkraftmaschine
DE102016014768A1 (de) Nockenwelle für eine Verbrennungskraftmaschine
DE102012011085B4 (de) Ventiltrieb mit einem Schaltelement und einer Schaltkontur für eine Ventilhubumschaltung
WO2018192822A1 (de) Ventiltriebvorrichtung
WO2018108297A1 (de) Ventiltriebvorrichtung
DE102013009757A1 (de) Ventiltriebvorrichtung für eine Brennkraftmaschine
WO2018068874A1 (de) Ventiltriebvorrichtung
DE102018009839A1 (de) Ventiltrieb für eine Verbrennungskraftmaschine, insbesondere eines Kraftfahrzeugs, sowie Verbrennungskraftmaschine für ein Kraftfahrzeug
DE102019114046A1 (de) Ventiltrieb für eine Verbrennungskraftmaschine eines Kraftfahrzeugs, Verbrennungskraftmaschine, Kraftfahrzeug sowie Verwendung eines Ventiltriebs
DE102012002893A1 (de) Kraftfahrzeugventiltriebverstellvorrichtung

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100206

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170928

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190429

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIMLER AG

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1209671

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008016967

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20191204

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200305

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

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

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

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

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200429

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

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200404

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008016967

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008016967

Country of ref document: DE

Owner name: MERCEDES-BENZ GROUP AG, DE

Free format text: FORMER OWNER: DAIMLER AG, 70372 STUTTGART, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008016967

Country of ref document: DE

Representative=s name: JENSEN & SON, GB

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008016967

Country of ref document: DE

Owner name: DAIMLER AG, DE

Free format text: FORMER OWNER: DAIMLER AG, 70372 STUTTGART, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008016967

Country of ref document: DE

Representative=s name: JENSENS IP LIMITED, IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

26N No opposition filed

Effective date: 20200907

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008016967

Country of ref document: DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008016967

Country of ref document: DE

Representative=s name: JENSENS IP LIMITED, IE

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20200807

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

Ref country code: CH

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

Effective date: 20200831

Ref country code: LI

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

Effective date: 20200831

Ref country code: LU

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

Effective date: 20200807

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200831

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

Ref country code: FR

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

Effective date: 20200831

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

Ref country code: BE

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

Effective date: 20200831

Ref country code: GB

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

Effective date: 20200807

Ref country code: IE

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

Effective date: 20200807

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1209671

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200807

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

Ref country code: AT

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

Effective date: 20200807

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502008016967

Country of ref document: DE

Owner name: MERCEDES-BENZ GROUP AG, DE

Free format text: FORMER OWNER: DAIMLER AG, STUTTGART, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008016967

Country of ref document: DE

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191204

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502008016967

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R085

Ref document number: 502008016967

Country of ref document: DE

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

Ref country code: DE

Payment date: 20231211

Year of fee payment: 16