EP3662146A1 - Dispositif de couplage pour un dispositif d'actionnement de soupapes - Google Patents

Dispositif de couplage pour un dispositif d'actionnement de soupapes

Info

Publication number
EP3662146A1
EP3662146A1 EP18748919.0A EP18748919A EP3662146A1 EP 3662146 A1 EP3662146 A1 EP 3662146A1 EP 18748919 A EP18748919 A EP 18748919A EP 3662146 A1 EP3662146 A1 EP 3662146A1
Authority
EP
European Patent Office
Prior art keywords
coupling
valve
coupling element
blocking
locking
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.)
Pending
Application number
EP18748919.0A
Other languages
German (de)
English (en)
Inventor
Martin KLAMPFER
Andreas Zurk
Thomas SALMUTTER
Jürgen GELTER
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.)
AVL List GmbH
Original Assignee
AVL List 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 AVL List GmbH filed Critical AVL List GmbH
Publication of EP3662146A1 publication Critical patent/EP3662146A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0031—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 tappet or pushrod length
    • 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
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • 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
    • F01L1/181—Centre 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
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/02—Cutting-out
    • 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
    • F01L1/08—Shape of cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • 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
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/054—Camshafts in cylinder block
    • 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
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/101—Electromagnets
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/105—Hydraulic motors
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/106—Pneumatic motors
    • 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

Definitions

  • the present invention relates to a coupling device for a valve operating device for actuating at least one valve of a reciprocating piston engine with variable valve lift, in particular for a valve actuating device of a Hubkol- benbrennkraftmaschine.
  • the present invention further relates to an aforementioned valve operating device and a reciprocating piston machine with such a valve actuating device.
  • variable valve trains i. Valve drives with variable valve lift, in reciprocating internal combustion engines, especially in reciprocating internal combustion engines in four-stroke operation and in six-stroke operation, more and more important.
  • variable valve trains With variable valve trains, the necessity of the engineers of the internal combustion engine and the desire of thermodynamics can be met alternatively to transfer different valve lift curves to one or more valves, in particular depending on the operating situation of the internal combustion engine, wherein both the valve lift and the opening and closing times are adjusted can.
  • Hubum and Hubabscibilssysteme with switchable cam followers such as bucket tappets, roller tappets or rocker arms, are in various applications in series. It holds true that for each further alternative valve lift, a corresponding cam must also be present as the lifting element - unless the alternative lift is a zero stroke.
  • valve drives with variable or variable valve lift There are different fields of application for the use of valve drives with variable or variable valve lift. Some examples are listed below:
  • the Hubumscnies allows the operating point-dependent use of at least two different valve lifts.
  • a smaller valve lift specially adapted to the partial load range, is used, which torque history and reduced fuel consumption and emissions.
  • the large valve lift can be optimized for even more performance.
  • a smaller valve lift with a lower maximum stroke and shorter event length allows for a reduction in charge cycle work (Miller Cycle) due to a much earlier intake-closing time and dethrottling in the intake manifold. Similar results are possible with the Atkinson cycle, which means extremely late inlet closure. An optimal filling of the combustion chamber thereby causes a torque increase in the partial load range.
  • Cylinder deactivation The cylinder deactivation is mainly used with large-volume, multi-cylinder engines (for example with four, eight, ten or twelve engine cylinders). Selected engine cylinders are shut down by Hubabscaria the intake and exhaust valves; There is a complete decoupling from the cam lift instead. Due to equidistant ignition sequences, common V8 and V12 engines can be switched to A4 or R6 engines. The purpose of the engine cylinder shutdown is to minimize the charge cycle losses and perform an operating point shift towards higher mid pressures and thus higher thermodynamic efficiencies, which can achieve significant fuel savings.
  • Engine braking operation Engine braking systems which enable engine braking operation are becoming increasingly important in vehicle internal combustion engines, especially for commercial vehicles, since these are cost-effective and space-saving additional brake systems which can relieve the wheel brakes, especially on longer downhill journeys.
  • the increase in the specific power of modern commercial vehicle engines also causes the increase in the braking power to be achieved.
  • valve lift To change the valve lift different systems and concepts are known.
  • a coupling device between one or more, a cam lift transmitting valve actuation elements of a valve actuating device, by means of which a change in the transmission path of the valve train can be achieved.
  • US 2014/0326212 A1 discloses a variable valve timing system, in particular for generating an engine braking effect, which includes a "lost motion" device with hydraulically actuatable blocking elements to selectively lock or release a valve actuation mechanism so as to selectively transmit or actuate valve actuation motions not be transferred to one or more valves to change the valve lift and thereby in particular to produce an engine braking effect.
  • a valve actuator for actuating at least a first valve of a reciprocating engine, in particular an internal combustion engine is disclosed, which is particularly suitable for engine braking and which a first rocker arm, a second rocker arm, and a first switching element for changing the valve lift of at least a first valve, wherein the first rocker arm part and the second rocker arm part are pivotally mounted and arranged in such a way that at least a first valve control movement from a first camshaft via the first rocker arm part and the second rocker arm part to the at least one first valve is transferable.
  • a first aspect of the present invention relates to a coupling device for a valve operating device for actuating at least one valve of a reciprocating piston variable displacement engine, in particular for a valve actuator of a reciprocating internal combustion engine, wherein the coupling device comprises at least a first coupling element, a second coupling element and a locking device with a blocking element.
  • the first coupling element and the second coupling element and / or the first coupling element and the blocking element are displaceable relative to each other along a first axis and by means of the locking device is the relative displacement of the two coupling elements to each other and / or the relative displacement between the first coupling element and the blocking element along the first Blockable axis at least in a first direction.
  • the two coupling elements and / or the first coupling element and the blocking element are displaceable relative to each other at least within defined limits along the first axis, the defined limits are determined in particular by the structural design of the coupling device and / or its surroundings, in particular by the kinematic and / or space-related conditions.
  • the blocking element is rotatable about the first axis at least over a defined angular range in the circumferential direction, wherein the relative displacement of the two coupling elements along the first axis to each other and / or the relative displacement between the first coupling element and the blocking element is blocked, at least in the first direction the blocking element is in a blocking position.
  • a coupling device enables in a simple manner, in particular when properly used in a suitably designed valve actuator, a mechanical valve actuation with at least one defined valve lift, wherein a first defined valve lift can be adjusted, in which the blocking element is brought into the blocking position.
  • a coupling device according to the invention is a device for coupling, in particular for the mechanical and / or kinematic coupling, of at least two elements, in particular of at least two actuating elements.
  • a coupling element according to the invention is an element designed for mechanical and / or kinematic coupling.
  • a valve actuating device is a device for actuating one or more valves of a reciprocating piston engine, in particular a reciprocating piston internal combustion engine.
  • a valve according to the invention is an inlet or an outlet valve, in particular an inlet or an outlet valve of a reciprocating internal combustion engine.
  • variable valve lift in the sense of the invention is a valve lift, which can be changed in any desired manner.
  • two states may exist with respect to the variable valve lift, namely firstly a zero stroke and secondly a defined valve lift.
  • a locking device is a device with which in particular an axial relative displacement between two defined elements can be locked.
  • a blocking element according to the invention is a part of a locking device.
  • a valve actuation movement in the sense of the invention is a kinematic event, which is generated in particular by a cam on a camshaft and is transmitted to a valve. This event is described in particular by the physical quantities position, speed and acceleration.
  • the solution according to the invention is based, in particular, on the approach of configuring the coupling device in such a way that either a valve actuation movement is transmitted to an associated valve to be actuated or no transmission, thus, in particular optionally, a first defined valve lift or a second defined valve lift, in particular one Zero stroke, to be able to adjust.
  • Hydraulic, electronic or electromagnetic devices to transmit the valve lift from camshaft to valve are therefore not necessary according to the invention.
  • the coupling device is formed like a telescoping rod, in which case preferably the first axis of the coupling device coincides with the longitudinal axis of the coupling device.
  • the mutually sliding parts may have a friction reducing surface and / or a surface with defined roughness and / or coated and / or lubricated with a lubricant.
  • the coupling device is designed in such a way that the relative displacement of the two coupling elements to each other and / or the relative displacement between the first coupling element and the blocking element along the first axis is released at least in the first direction when the blocking element is in a release position, wherein preferably the locking element is rotatable at least between a release position and a blocking position about the first axis.
  • a coupling device designed in this way makes it possible in a simple manner, especially when appropriately used in a suitably designed valve actuating device, to actuate a mechanical valve with at least two mutually different defined valve strokes, wherein a first defined valve stroke can be adjusted by means of the coupling device when the blocking element is in the Blocking position is and a second defined valve lift, in particular a zero stroke, when the locking element is in the release position.
  • a coupling device according to the invention allows a variable valve lift control within certain limits.
  • the blocking element over a defined angular range which extends in the circumferential direction of about 15 degrees to about 30 degrees, is rotatable about the first axis in the circumferential direction.
  • other defined angular ranges may be more advantageous, for example up to 45 degrees or 60 degrees or even up to 90 degrees or less than 15 degrees.
  • the coupling device is designed such that in a first state of the coupling device blocks a defined relative displacement of the two coupling elements to each other along the longitudinal axis of the coupling device is and in a second state of the coupling device, the relative displacement is released, wherein preferably the relative displacement is selectively releasable or blockable.
  • the coupling device is preferably formed in such a way that by blocking the relative displacement kinematic coupling of a first, mechanically coupled to the first coupling element actuator with a second, mechanically coupled to the second coupling element of the coupling actuator is effected and by releasing the relative displacement of the kinematic Separation between the two actuators.
  • the coupling device is designed for arrangement in a valve actuating device, in particular for arrangement in an actuatable by means of a rotatable cam valve actuating device, wherein the valve actuating device for actuating at least one valve of a reciprocating engine is designed with variable valve lift and at least a first Valve actuating element and in particular a second valve actuating element, wherein the coupling device is preferably formed in such a way that the first coupling element with the first valve actuating element mechanically coupled, in particular connectable, and the second coupling element with the second valve actuating element or a valve to be actuated.
  • the coupling device is designed in particular in such a way that by means of the coupling device for transmitting a valve actuation movement from a first valve actuating element of the valve actuating device to a second valve actuating element of the valve actuator kinematic coupling of the first valve actuating element with the second valve actuating element effected and / or separable, in particular optionally.
  • the coupling device is preferably designed in such a way that with functional use of the coupling device in a valve actuator in the blocked state of the coupling device with a corresponding design of the valve actuating device and corresponding mechanical coupling of the first coupling element with a first valve actuating element of a valve actuator as a result of a valve actuation movement over the first valve actuator of Valve actuator and the first coupling element in the Coupling device initiated valve actuation movement along the first axis to the second coupling element is transferable and from there with appropriate mechanical coupling of the second coupling element with a second valve actuating element of the valve actuator on the second valve actuating element, so that a defined valve lift is effected, and / or in the manner in the released state of the coupling device, a valve actuation movement introduced via the first coupling element into the coupling device along the first axis leads to an axial displacement of the first coupling element relative to the second coupling element, but not to a transmission of the valve actuation movement to the
  • the blocking element has an annular or sleeve-shaped portion, wherein preferably the annular or sleeve-shaped portion of the blocking element at least partially overlaps the first coupling element and / or the second coupling element in the axial direction.
  • the ring-shaped or sleeve-shaped section of the blocking element at least partially surrounds the first coupling element and / or the second coupling element, preferably with a circumferential angle of more than 180 degrees, in particular with a circumferential angle of more than 270 degrees, preferably completely.
  • the annular or sleeve-shaped portion of the blocking element surrounds the first coupling element and / or the second coupling element from the outside.
  • the annular or sleeve-shaped portion of the locking element is designed such that it surrounds the first and / or the second coupling element from the outside at least partially - preferably with a circumferential angle of more than 180 degrees, in particular more than 270 degrees -, preferably completely ,
  • at least one of the two coupling elements, in particular the first coupling element, at least partially along the first axis in the locking device, in particular in the locking element, hineinschiebbar and / or by the locking device, in particular the blocking element is pushed past.
  • the locking device in particular the blocking element, a first link guide element which is adapted to cooperate with a second, corresponding to the first link guide element slotted guide element of a slotted guide, said means of the slotted guide a rotational movement of the locking device, in particular of the blocking element to the first axis is feasible, in particular from the release position to the blocking position and vice versa.
  • a simple, mechanical actuation of the locking element and thus a simple, mechanical adjustment of the valve lift is possible.
  • the first link guide element is a crank pin extending radially outwards, in particular a pin which is arranged on the ring-shaped or sleeve-shaped section of the blocking device, in particular of the blocking element, and which extends outward in the radial direction.
  • a pin By means of a pin can be effected in a particularly simple manner, a mechanical actuation of the blocking element.
  • the defined angular range by which the blocking element is rotatable about the first axis preferably dimensioned such, in particular not too large, that ensures that the first link guide element and the second link guide element are always sufficiently engaged with one another ensure safe operation of the locking device.
  • the switching times also increase.
  • the locking device in particular the blocking element, in the axial direction along the first axis at least partially, in particular completely, relative to at least one coupling element, in particular defined relative to the second coupling element.
  • the locking device in particular the blocking element may be attached to the coupling element, for example by means of a retaining ring, and / or axially fixed by means of a biasing device and, for example, by means of a spring in the axial direction in a defined position relative to the coupling element, in particular relative tively clamped to the second coupling element, at least in the release position.
  • the coupling device has a Faculty of Medicine for adjusting a kinematic clearance in the coupling device, in particular for adjusting a kinematic play in the axial direction along the first axis.
  • a suitable design of the lash adjuster device when the coupling device is used appropriately in a mechanical, correspondingly designed valve actuation device, it is possible to ensure that at least one almost, in particular completely, load-free state relative to the first axis, i. an axialkraftkaer state in the direction of the first axis, is adjustable, in particular when the valve actuator is actuated by means of a rotatable cam.
  • an actuation of the coupling device can be made possible in a virtually load-free or load-free state.
  • This has the advantage that thereby the wear of the coupling device, in particular the locking device, can be significantly reduced compared to an operation under load.
  • the first coupling element and the second coupling element along the first axis at least partially telescopically in a telescoping manner, in particular when the blocking element is in the release position.
  • one of the two coupling elements in particular the first coupling element, a free, piston-like end and the other, in particular second, coupling element has a free, cylinder-like and the free end of the first coupling element facing the end, wherein the free, piston-like end of a coupling element is at least partially hineinschiebbar in the cylindrical end of the other coupling element along the first axis, wherein the coupling element is guided with the piston-like end during the relative displacement, preferably by the coupling element with the cylinder-like end.
  • At least one of the two coupling elements and the locking device, in particular the first coupling element and the locking device along the first axis at least partially telescopically pushable into each other, especially when the locking element is in the release position, preferably the first coupling element along the first axis at least partially hineinschiebbar in the locking element.
  • one of the two coupling elements in particular the first coupling element, a free, piston-like end and the locking element is preferably cylindrical and has an open, the free end of the first coupling element facing the end and an opposite closed end, said free, piston-like end of the coupling element, in particular of the first coupling element, at least partially hineinschiebbar in the cylinder-like, open end of the blocking element along the first axis.
  • the closed end of the blocking element can preferably be supported on the other coupling element, in particular on the second coupling element, in particular by means of a spring element, preferably by means of a prestressed spring element.
  • one of the coupling elements in particular the first coupling element, has a first section, in particular a section extending along the first axis and / or the longitudinal direction of the associated coupling element, with an outer longitudinal toothing and a second, without Gearing formed portion, wherein the second portion preferably, in particular also, along the first axis and / or the longitudinal direction of the associated coupling element extends and in particular adjacent to the first portion.
  • an outer diameter of the second, without teeth formed portion of the coupling element is smaller than a tip diameter of the outer longitudinal teeth of the first portion of the coupling element, in particular, the outer diameter of the second portion is less than or equal to theticiannik bemesser the outer longitudinal teeth of the first section.
  • the blocking element has a section extending in the axial direction with an inner longitudinal toothing corresponding to the outer longitudinal toothing of the first portion of the coupling element, wherein the inner longitudinal toothing in particular on an inner side of the annular and / or sleeve-shaped portion of the blocking element is arranged.
  • the blocking element is in the blocking position when the coupling element with the outer longitudinal teeth in the axial direction is displaced axially relative to the locking element, that the inner longitudinal teeth not with the outer longitudinal teeth of the Coupling element is engaged, but is the inner longitudinal toothing of the locking element at the level of the second, formed without teeth section, and when the blocking element is rotated in the circumferential direction such that at least one tooth, in particular all teeth, the outer longitudinal teeth of the first section of the coupling element with at least one tooth, in particular with all teeth, the inner longitudinal toothing of the locking element is at least partially aligned in the axial direction.
  • the front sides of the teeth are preferably adjacent to each other. In this way, a force applied to the coupling element pressure force on the aligned teeth, in particular their end faces, are supported axially and a valve actuation movement to be transmitted.
  • the defined angular range by which the blocking element is rotatable in the circumferential direction about the first axis, preferably at least dimensioned such that the inner longitudinal teeth of the blocking element can be brought into engagement with the outer longitudinal teeth of the coupling element for releasing the relative displacement and for blocking the relative displacement so relative to the outer longitudinal teeth of the coupling element can be arranged that at least one tooth, in particular all teeth, the outer longitudinal teeth of the first portion of the coupling element with at least one tooth, in particular with all teeth, the inner longitudinal teeth of the Locking elements at least partially aligned in the axial direction.
  • the blocking element is in the release position, when the blocking element is rotated in the circumferential direction such that all teeth of the outer longitudinal teeth of the first portion of the coupling element to all teeth of the inner longitudinal teeth of the blocking element in such a way are arranged offset, that the teeth of the outer longitudinal teeth of the first coupling element with the teeth of the inner longitudinal teeth at least over part of its axial length in Engage or can be brought together by an axial relative displacement between the coupling element and the locking element with each other.
  • engaging means the reciprocal, in particular comb-like, arrangement of the teeth of an external toothing with the internal toothing, whereby the tooth flanks do not have to touch each other, that is, they can also be mutually interposed with play therebetween.
  • the blocking element is rotatable about the first axis when the coupling element with the outer longitudinal teeth in the axial direction is axially displaced relative to the locking element such that the inner longitudinal teeth do not interfere with the outer longitudinal teeth of the first Coupling element is engaged, but is at the level of the second, formed without toothing portion.
  • the coupling element with the outer longitudinal toothing has a further section with an outer longitudinal toothing, in particular with identical tooth geometry to the outer longitudinal toothing of the first section, wherein the further section is preferably adjacent the second section without teeth is arranged adjacent and in particular at the free end of the coupling element, in particular such that the second section is arranged without toothing in the axial direction between the first section with external longitudinal teeth and the further section with external longitudinal teeth.
  • the locking device has at least one in the radial direction between the inner coupling element and the locking device, in particular between the inner coupling element and the locking element, arranged locking wedge, in particular a plurality of circumferentially distributed locking wedges, wherein at least one locking wedge in Axial direction is arranged in an overlap region in which the first coupling element and the second coupling element overlap in the axial direction.
  • a coupling device is at least one of the locking wedges, preferably all locking wedges, so in the radial direction inwardly displaceable and with the radially inner coupling element engageable, in particular with a recess or a circumferentially extending groove of the radially inner coupling element, that an axial relative displacement along the first axis between the first coupling element and the second coupling element, in particular a telescoping telescoping telescoping of the two coupling elements is blocked.
  • At least one locking wedge against a restoring force, in particular against a return spring, in the radial direction inwardly displaceable preferably at least one locking wedge against a restoring force, in particular against a return spring, in the radial direction inwardly displaceable.
  • At least one of the locking wedges preferably all locking wedges, each inserted in an associated recess in the radially outer coupling element, in particular in the second coupling element, wherein at least one of the locking wedges, preferably all locking wedges, by the associated recess in the axial direction, in particular additionally in the circumferential direction, are guided and / or fixed relative to the radially outer coupling element.
  • a coupling device has at least one of the locking wedges, preferably all locking wedges, extending in the circumferential direction, in particular on the radially outer of the locking device side facing the locking wedge, formed as a ramp guide surface and the locking device, in particular the blocking element, preferably at least a cooperating with the guide surface guide member which cooperates with the guide surface, that in particular a rotation of the locking element in the circumferential direction from the release position to the blocking position causes a displacement of the locking wedge radially inwardly, so that the locking wedge with the radially inner coupling element is engaged and an axial relative displacement along the first axis between the first coupling element and the second coupling element is blocked.
  • guide elements are in particular projections and / or, preferably in recesses and / or openings in the locking element mounted, held by the blocking element in the radial direction and rolling on the locking wedges rolling elements, in particular balls. Rolling elements are particularly advantageous for reducing friction.
  • the blocking device has a spreading sleeve arranged in the radial direction within the blocking element, the blocking device in particular being configured in such a way. det is that by rotating the locking element in a first direction about the first axis, in particular by rotating the locking element in the direction of the blocking position, the expansion sleeve in the radial direction and / or in the circumferential direction is compressible.
  • An expansion sleeve according to the invention is a sleeve which has at least one extending in its longitudinal direction over at least part of its length slot and whose outer diameter can be reduced in particular by applying a tensile force acting in the circumferential direction and / or a radial compressive force against a power-free state ,
  • An expansion sleeve in the sense of the invention has, in particular, a continuous slot extending over its entire length or a plurality of slots, preferably uniformly distributed in the circumferential direction and extending over only a portion of its length.
  • An expansion sleeve according to the invention may be cylindrical or have one or more conical sections. In particular, the outer diameter can reduce in a direction along its longitudinal axis, in particular continuously, sections continuously or discontinuously.
  • At least one coupling element and the expansion sleeve preferably the coupling element to which the expansion sleeve is not fixed axially and the expansion sleeve, in particular the first coupling element and the expansion sleeve, along the first axis axially relative to each other displaceable, in particular at least partially telescopically rod-like pushed together when the expansion sleeve is not compressed in the radial direction and / or in the circumferential direction.
  • the expansion sleeve when the blocking element is in the blocking position, at least partially an inner diameter, in particular at its, the in axial direction relative to the expansion sleeve displaceable coupling element facing the free end, which is smaller than an outer diameter of the displaceable in the axial direction relative to the expansion sleeve coupling element, in particular smaller than an outer diameter of a shaft shoulder of the sliding sleeve relative to the coupling element.
  • the expansion sleeve can be supported for blocking the relative displacement with its end face on a shaft shoulder of the coupling element displaceable relative to the expansion sleeve.
  • the expansion sleeve has a, in particular along the first axis, conically tapered portion, in particular a tapered in the direction of relative to the expansion sleeve coupling element portion, and the rotatable about the first axis blocking element preferably a corresponding to the conical portion of the expansion sleeve and with the tapered portion of the expansion sleeve cooperating, hollow cone-shaped portion, wherein the expansion sleeve is coupled in particular by means of a thread with the blocking element.
  • the conical sections are each outside the thread.
  • the expansion sleeve is further fixed axially on one of the two coupling elements, in particular on the second coupling element.
  • a coupling device may be designed for arrangement in a valve actuating device which has at least one rocker arm with at least one first rocker arm part as the first valve actuating element and a second rocker arm part as the second valve actuating element, wherein the first rocker arm part and the second rocker arm part are both rotatably mounted about a common axis of rotation, wherein a coupling element with the first rocker arm part mechanically coupled, in particular connectable, and the other coupling element with the second rocker arm part.
  • the coupling device can be formed in such a way that the coupling elements can each be both fixed or both pivotally connected to the rocker arm, wherein at least one pivot axis, preferably both pivot axes, parallel to the common axis of rotation of the two Kipphebelmaschine.
  • a coupling device may be designed for arrangement in a valve actuating device which has at least one rocker arm, in particular a rigid rocker arm, as the first valve actuating element and a push rod as the second valve actuating element, wherein a coupling element with the push rod mechanically coupled, in particular connectable, and the other coupling element with the rocker arm, wherein in particular the cam-side coupling element with the push rod is connectable and the valve-side coupling element with the rocker arm.
  • a coupling device may be designed for arrangement in a valve actuating device which has at least one rocker arm, in particular a rigid rocker arm, as the first valve actuating element, wherein a coupling element with the rocker arm mechanically coupled, in particular connectable, and the other coupling element with a valve to be actuated, wherein in particular the cam-side coupling element with the rocker arm is connectable and the valve-side coupling element with the valve to be actuated.
  • a coupling device can be designed for arrangement in a valve actuating device which has at least one divided push rod with a first push rod part as first valve actuating element and a second push rod part as second valve actuating element, wherein a coupling element with the first push rod part mechanically coupled, in particular connectable, and the other coupling element with the second push rod part.
  • a coupling device may be designed for arrangement in a valve actuating device which has at least one rocker arm, in particular a rigid rocker arm, as the first valve actuating element and a valve bridge as a second valve actuating element, wherein a coupling element with the rocker arm mechanically coupled, in particular connectable, and the other coupling element with the valve bridge.
  • a second aspect of the present invention relates to a valve actuating device, in particular a valve actuating device which can be actuated by means of a rotatable cam, wherein the valve actuating device is designed to actuate at least one valve of a reciprocating piston engine with variable valve lift and has a coupling device according to the invention.
  • the valve actuating device has at least one rocker arm with at least a first rocker arm part as the first valve actuating element and a second rocker arm part as the second valve actuating element, wherein the first rocker arm part and the second rocker arm part are both rotatably supported about a common axis of rotation, wherein a coupling element is mechanically coupled in particular connected to the first rocker arm part, and the other coupling element with the second rocker arm part.
  • the first coupling element of the coupling device is preferably connected to the cam-side rocker arm part and the second coupling element to the valve-side coupling element.
  • the second coupling element may also be connected to the cam-side rocker arm part and the first coupling element to the valve-side coupling element.
  • the coupling elements can each be fixed to the rocker arm, either fixedly or in each case pivotally, wherein at least one pivot axis, preferably both pivot axes, extends or run parallel to the common axis of rotation of the two rocker arm parts.
  • a rocker arm part in the sense of the invention is a section of a valve lever which serves to transmit a valve control movement from a camshaft to a valve of a reciprocating piston engine, in particular an internal combustion engine.
  • the valve actuating device comprises at least one rocker arm, in particular a rigid rocker arm, as a first valve actuating element and a bung bar as a second valve actuating element, wherein a coupling element mechanically coupled to the bumper bar, in particular connected, and the other coupling element with the Rocker arm, wherein in particular the cam-side coupling element is connected to the broom bar and the valve-side coupling element with the rocker arm.
  • the valve actuating device has at least one rocker arm, in particular a rigid rocker arm, as the first valve actuating element, wherein a coupling element with the rocker arm mechanically coupled, in particular connected, and the other coupling element with a valve to be actuated, in particular the cam-side coupling element is connected to the rocker arm and the valve-side coupling element with the valve to be actuated.
  • the valve actuating device has at least one split shock bar with a first push rod part as the first valve actuating element and a second push rod part as the second valve actuating element, wherein a coupling element with the first push rod part mechanically coupled, in particular connected, and the other Coupling element with the second push rod part.
  • the valve actuating device comprises at least one rocker arm, in particular a rigid rocker arm, as a first valve actuating element and a valve bridge as a second valve actuating element, wherein a coupling element with the rocker arm mechanically coupled, in particular connected, and the other coupling element with the valve bridge.
  • a valve actuating device is designed in such a way that the locking device can be actuated in a load-free state, wherein the valve actuating device in a further advantageous embodiment for setting at least one load-free state, in particular has a clearance adjustment device.
  • This is preferably designed such that at least one load-free state is adjustable, in particular when a valve actuating device associated cam rolls on the base circle.
  • the valve actuating device has a slotted guide for actuating the locking device of the coupling device, wherein by means of the slotted guide a rotational movement of the locking device, in particular of the blocking element, about the first axis is effected, in particular from the release position in the block Position and / or vice versa, wherein preferably at the blocking element a first link guide element is arranged, which is adapted to cooperate with a second, corresponding to the first link guide element formed and in particular axially displaceable, the housing side mounted link guide element of the link guide.
  • a third aspect of the present invention relates to a reciprocating engine, in particular a reciprocating internal combustion engine, with a valve actuating device according to the invention.
  • FIG. 2 shows a first embodiment of a valve actuating device according to the invention in a schematic representation with the coupling device of FIGS. 1 a and 1 b, a section of the valve actuating device of FIG. 2 in the region of the coupling device according to the invention in cross section, a second embodiment of a coupling device according to the invention in longitudinal section, the coupling device of Fig. 4a in cross section in the region of the locking element in a perspective view, the coupling device of Figs. 4a and 4b in exploded view, a detail of a second embodiment of a valve operating device according to the invention with the coupling device of FIGS.
  • FIG. 4a to 4c in side view, a third embodiment of a coupling device according to the invention in longitudinal section, the coupling device of Fig. 6a in exploded view, a section of a third embodiment of a valve actuating device according to the invention in Longitudinal section through a fourth embodiment of a coupling device according to the invention in the region of the coupling Vorr
  • a fourth embodiment of a valve actuating device according to the invention with a fifth embodiment of a coupling device according to the invention in a schematic representation, a fifth embodiment of a valve actuating device according to the invention with a sixth embodiment a coupling device according to the invention in a schematic representation, 10 is a sixth embodiment of a valve actuating device according to the invention with a seventh embodiment of a coupling device according to the invention in a schematic representation,
  • FIG. 1 1 shows a seventh embodiment of a valve actuating device according to the invention with an eighth embodiment of a coupling device according to the invention in a schematic representation
  • FIGS. 1 a, 1 b and 2 show a detail of a reciprocating internal combustion engine according to the invention with two valve actuation devices according to the invention, each having a coupling device according to the invention and designed according to FIGS. 1 a, 1 b and 2
  • Fig. 13 shows the detail of Fig. 12 in a view obliquely from above in addition to a
  • FIG. 1 a shows a first exemplary embodiment of a coupling device 10 according to the invention, in this case a telescopic rod-like design, in longitudinal section, wherein the coupling device 10 according to the invention is designed to be arranged in a valve actuating device, not shown here, in particular for arrangement in a valve actuating device actuatable by means of a rotatable cam for actuation at least one valve in a reciprocating internal combustion engine with variable valve lift with at least one first valve operating element and in particular a second valve actuating element.
  • the coupling device 10 has a first coupling element 11 and a second coupling element 12, wherein the first coupling element 1 1 and the second coupling element 12 in principle up to the respective existing (end attacks, ie at least within defined limits, telescopic rod-like relative to each other in the axial direction along a first axis A are displaceable, which coincides with the longitudinal axis of the coupling device 10 in this embodiment.
  • first coupling element 11 is at least partially piston-like and in particular has a piston-like formed free end
  • second coupling element 12 is at least partially cylindrical and has in particular a cylinder-like trained free end.
  • both the first piston element 1 1 and the cylinder-shaped second piston element 12 each have a circular or hollow cylindrical cross-section.
  • the coupling device 10 also has a locking device 13 with a sleeve-shaped blocking element 13B and a pin 13A extending outwardly in the radial direction, which serves to actuate the blocking element 13B by means of a sliding guide.
  • the pin 13A forms a first gate guide element, which is designed to cooperate with a second, not shown here and corresponding to the pin 13A formed gate guide element of a slotted guide, which is arranged outside of the coupling device 10.
  • the locking device 13 is designed to selectively block or release the relative displacement of the two coupling elements 11 and 12 relative to each other along the first axis A.
  • the blocking element 13B is rotatable at least in a defined area in the circumferential direction about the first axis A, wherein the relative displacement of the two coupling elements 11 and 12 is blocked along the first axis A, as shown in Fig. 1 a, when the blocking element 13B is in a blocking position. Accordingly, the relative displacement of the two coupling elements 1 1 and 12 along the first axis A is released when the blocking element 13 B is in a release position, wherein the blocking element 13 B between the release position and the blocking position about the first axis A around is rotatable.
  • the locking device 13 comprises a pressure piece 15 in the form of a spring-biased ball, which holds the blocking element 13B in the end positions, i. in the blocking position and in the release position, holds.
  • the first axis A is arranged in a defined angular range with respect to a stroke direction of the actuated valves 101 of the reciprocating engine.
  • the angle range defines an angle between about 60 ° and 120 °, preferably between about 75 ° and 105 °, more preferably an angle of about 90 °.
  • the angular range defines an angle between about 20 ° and 80 °, preferably between about 35 ° and 65 °, more preferably an angle of about 50 °.
  • the angle range defines an angle between about 100 ° and 160 °, preferably between about 1 15 ° and 145 °, more preferably an angle of about 130 °.
  • the first axis A extends to a stroke direction of the actuated valves 101 at an angle in at least one of the above-mentioned angle ranges.
  • the locking device 13, in particular the sleeve-shaped blocking element 13 B is arranged such that it at least partially overlaps both the first coupling element 11 and the second coupling element 12, wherein the locking device 13, in particular the blocking element 13 B, by means of a locking ring 14 made of spring steel, in a Nut is guided on the blocking element 13 B, is fixed in the axial direction on the second coupling element 12.
  • the blocking device 13, in particular the blocking element 13B in this case encompasses the first coupling element 11 and the second coupling element 12 completely, in each case.
  • the blocking element 13B is formed closed in the circumferential direction in this embodiment of a coupling device 10 according to the invention.
  • the blocking element 13 B surrounds the first coupling element 1 1 and / or the second coupling element 12 on a respective outer surface of the first coupling element 1 1 and / or the second coupling element 12th
  • the blocking element 13B extends around the respective outer surface of the first coupling element 11 and / or of the second coupling element 12.
  • FIG. 1 b shows an exploded view of the coupling device 10 from FIG. 1 a, a first, in the longitudinal direction of the coupling element 1 1 extending portion 16 with an external spline and a second, also in the longitudinal direction of the first coupling element 1 1 extending and immediately adjacent to the first portion 16 section 18 without teeth on. Furthermore, a further, adjacent to the second portion 18 third portion 19 is provided, which also extends in the longitudinal direction of the first coupling element 1 1 and also has an outer longitudinal toothing
  • the locking device 13, in particular the sleeve-shaped blocking element 13 B, has over a part of its length in the axial direction a corresponding to the Veryakungsge- ometrie the first portion 16 and the third portion 19 formed inner longitudinal teeth 17, wherein the inner longitudinal teeth 17 extends only in the axial direction over a region having a length which corresponds at most to the width of the second portion 18 without teeth, so that the blocking element 13B is rotatable about the first axis, when the coupling element 1 1 is axially displaced with the external spline in the axial direction relative to the blocking element 13B such that the internal longitudinal spline 17 of the blocking element 13B does not interfere with the external longitudinal spline of the first Coupling member 11 is engaged, but is at the level of the second, formed without toothing portion 18, ie between the sections 16 and 19th
  • an outer diameter of the second, formed without toothing portion 18 of the first coupling element 1 1 in this coupling device 10 is smaller than a tip diameter of the outer longitudinal teeth of the first portion 16 of the first coupling element 1 1, wherein in particular the outer diameter of the second portion 18 is smaller or equal the root diameter of the outer longitudinal teeth of the first portion 16 is.
  • the external longitudinal toothing of the third section 19 serves to improve the guidance of the first coupling element 1 1 in the locking element 13 B and / or in the second coupling element 12, wherein the toothing geometry of the outer longitudinal toothing of the third section 19 identical to the tooth geometry of the outer longitudinal toothing of the first section 18 is formed.
  • the third section 19 is arranged directly adjacent to the second, without toothed portion 18 and at the free end of the first coupling element 1 1, wherein the individual teeth of the third portion 19 in alignment with the teeth of the external longitudinal teeth in the first section 16 are arranged.
  • the blocking element 13B is in the blocking position when the coupling element 11 with the external longitudinal toothing is axially displaced axially relative to the blocking element 13B such that the internal longitudinal toothing 17 does not interfere with the external longitudinal toothing 16 of the coupling element Is engaged, but the mecanicverzaehrung17 of the locking element 13B in the axial direction at the level of the second, formed without toothing portion 18, and when the blocking element 13B is rotated in the circumferential direction, ie, so around the first Axis A is twisted, that at least one tooth, in particular all teeth, the outer longitudinal teeth of the first portion 16 of the coupling element 1 1 with at least one tooth, in particular with all teeth, the inner longitudinal teeth of the locking element 13 B at least partially in the axial direction is aligned, in particular in such a way that their end faces lie against each other.
  • the locking member 13B is in the release position when the locking member 13B is rotated in the circumferential direction so that all the teeth of the outer longitudinal teeth of the first portion of the coupling element to all teeth of the inner longitudinal teeth of the blocking element 13B are arranged offset such that the teeth of the outer longitudinal teeth of the first coupling element are engaged with the teeth of the inner longitudinal teeth at least over part of their axial length or can be brought into engagement with each other by an axial relative displacement between the coupling element 11 and the locking element 13B the individual tooth flanks of the adjacent teeth of the coupling element 1 1 and the blocking element 13B need not necessarily touch when they are engaged with each other, a "mesh with each other" is already sufficient.
  • the coupling device 10 shown in FIGS. 1 a and 1 b is in particular connected to a split rocker arm 102 with two pivotable about a common axis of rotation 103 Kipphebel too a valve operating device, see FIGS. 2 and 3, wherein the first coupling element 1 1 pivotally with a first valve operating member in the form of a first rocker arm part 102B is connectable and the second coupling element 12 pivotally connected to a second rocker arm part 102A.
  • a valve actuation movement introduced into the first rocker arm part 102B in particular by means of a cam 104, can be transmitted from the first rocker arm part 102B to the second rocker arm part 102A and from there to the valve 101
  • Valve lift be effected or initiated in the first rocker arm part 102 B valve actuation movement by means of the coupling device 10 are dissipated or led to the void.
  • valve actuation movement is dissipated or guided into the void when the blocking element 13B is in the release position, so that the first coupling element 1 1 unhindered in the cylindrical portion of the second coupling element 12 can dive without the valve actuation movement is transmitted to the second coupling element 12.
  • a first defined valve lift and in particular a second, defined valve lift in the form of a zero stroke with the resulting advantages can be set very simply and in particular mechanically, optionally.
  • FIG. 2 shows a schematic representation of a first exemplary embodiment of a valve actuating device 100 according to the invention, this valve actuating device 100 having a divided rocker arm 102, which has a first, cam-side rocker arm part 102B and a second, rocker arm part 102A on the valve side.
  • the cam-side rocker arm part 102B and the valve-side rocker arm part 102A of the rocker arm 102 are each rotatably mounted about a common axis of rotation 103 and coupled by means of the inventive coupling device 10 of FIGS.
  • valve actuation movement generated by a rotatable about an axis of rotation 105 cam 104 valve actuation transferable by means of a push rod 106 on the cam side rocker arm portion 102 B and from there depending on the state of the coupling device 10 either on the valve-side Kipphebelteil 102 A can be further transmitted and thus on a operable valve 101 or can be dissipated in the coupling device 10, in particular by telescoping the coupling elements 1 1 and 12 of the coupling device 10th
  • FIG. 3 shows, for a better understanding of FIG. 2, a section of the valve actuating device from FIG. 2 in the region of the coupling device according to the invention in cross section.
  • this pivotal connection via a respective joint 28; 29.
  • a first joint 28 preferably connects the cam-side rocking lever part 102B to the first coupling element 1.
  • a second joint 29 preferably connects the valve-side rocker arm part 102A to the second coupling element 12.
  • the joints 28, 29 are formed by recesses in the coupling elements 11, 12 , With to which they are rotatably mounted around these filling bolt elements of the rocking lever parts 102A, 102B, as can be seen by the different hatching in Fig. 3.
  • Other embodiments of the joints 28, 29 are possible.
  • a second embodiment of a coupling device 20 according to the invention is shown, wherein this coupling device 20 has a differently configured locking mechanism, in particular a differently configured locking device 23, and correspondingly differently designed coupling elements 21 and 22 as the previously described embodiment of Coupling device 10 according to the invention.
  • the locking device 23 of the coupling device 20 has a plurality of, between the radially inward coupling element 21 and the locking device 23, in particular between the inner coupling element 21 and the blocking element 23B, arranged locking wedges 24, wherein all locking wedges 24 in the axial direction in an overlapping region are arranged, in which the first coupling element 21 and the second coupling element 22 overlap in the axial direction.
  • all locking wedges 24 are at least partially displaceable inward in the radial direction and can be brought into engagement with the radially inner coupling element 21 in such a way that an axial relative displacement along the first axis A between the first coupling element 21 and the second coupling element 22, in particular a telescoping rod-like telescoping of the two coupling elements 21 and 22, is blocked.
  • the recesses 27, in which the locking wedges 24 are used, serve in addition to the axial fixing and guiding the locking wedges 24 in addition to fixing the locking wedges 24 in the circumferential direction.
  • All locking wedges 24 have a circumferentially extending, each at the radially outer, the locking element 23B facing side of the locking wedge, formed as a ramp guide surface and the locking device 23 more cooperating with the individual guide surfaces of the locking wedges 24 guide elements, in In this case, balls 25, which cooperate with the ramp surfaces of the locking wedges 24.
  • the balls 25 held by the blocking element 23B cooperate with the ramp surfaces of the locking wedges in such a manner that rotation of the blocking element 23B in the circumferential direction from the release position to the blocking position causes the blocking wedges 24 to move radially inward in that the locking wedges 24 can be brought into engagement with the radially inner coupling element 21, in particular with the groove 26, and an axial relative displacement along the first axis A between the two coupling elements 21 and 22 is blocked.
  • the locking wedges 24 can preferably be displaced radially inwardly against a restoring force, in particular against a restoring spring in each case, in order to be brought into engagement with the first coupling element 21, and accordingly be moved back radially outward with the help of the restoring force for a more reliable release of the relative displacement.
  • balls 25 can be used, in particular wedge-shaped guide elements.
  • the balls 25 used in this exemplary embodiment of a coupling device 20 according to the invention have the advantage that they have an advantageous effect on the friction and in particular have a friction-reducing effect.
  • the coupling device 20 according to the invention described with reference to FIGS. 4a to 4c is in this case likewise designed, like the previously described coupling device 10, for the pivotable connection of the coupling elements 21 and 22 to rocker arm parts 202A and 202B of a valve actuating device, the second coupling element 22 in particular for Connection to the cam-side Kipphebelteil 202B is formed and the first coupling element 21 for connection to the valve-side rocker arm part 202A, see Fig. 5th 5 shows a section of a second exemplary embodiment of a valve actuating device 200 according to the invention with the coupling device 20 from FIGS. 4a to 4c in side view.
  • valve operating device 200 shown in FIG. 5 differs from the previously described valve actuating device 100 in that the cam-side rocker arm part 202B is not mechanically coupled to the cam 204 via a push rod, but directly. Otherwise, the principle of operation is the same as in the valve operating device 100 described above.
  • FIGS. 6a and 6b show a third exemplary embodiment of a coupling device 30 according to the invention, likewise in the blocked state, wherein this coupling device 30 likewise differs in the locking mechanism and the configuration of the coupling elements 31 and 32 from the previously described embodiments of coupling device 10 and 20 according to the invention.
  • This locking device 33 has an expansion sleeve 34 arranged in the radial direction within the blocking element 33B, the blocking device 33 being designed in such a manner that by turning the blocking element 33B in a first direction about the first axis A, in particular by turning the blocking element 33 in FIG Direction of the blocking position, the expansion sleeve 34 can be compressed in the radial direction and / or in the circumferential direction.
  • the expansion sleeve 34 in this case a plurality of evenly distributed in the circumferential direction and extending over part of its length in the longitudinal direction extending narrow slits.
  • the expansion sleeve can be expanded in the radial direction and / or in the circumferential direction.
  • the first coupling element 31 and the expansion sleeve 34 are displaceable in the axial direction relative to each other, in particular telescopically pushable into one another, when the expansion sleeve is not compressed in the radial direction and / or in the circumferential direction.
  • a relative displacement in the axial direction between the first coupling element 31 and the expansion sleeve 34 is blocked, however, when the expansion sleeve 34 is compressed in the radial direction and / or in the circumferential direction, in particular completely, where in this case, the free end of the expansion sleeve 34, in particular its end face, abuts against the shaft shoulder 38 of the first coupling element and thus prevents an axial telescoping.
  • the expansion sleeve 34 is fixed to the second coupling element 32 in the axial direction and the first coupling element 31 is telescopically in the expansion sleeve 34 at least partially hineinschiebbar.
  • the first coupling element 31 formed hohizylinderformige at its free end or has at its free end a guide cylinder 39A.
  • the second coupling element 32 has a corresponding piston-like guide pin 39B tuned to the inner diameter of the guide cylinder 39A and at least partially slidable into the guide cylinder 39A.
  • the expansion sleeve 34 in the compressed state at least partially an inner diameter, in particular in their first coupling element 31 facing the free end, which is smaller than an outer diameter of the axial direction in series relative to the expansion sleeve 94 displaceable element 31, in particular smaller than an outer diameter of a shaft shoulder 38 of the first coupling element 31st
  • the expansion sleeve 34 has a section 36 that tapers conically along the first axis in the direction of the coupling element 31 and the blocking element 33B rotatable about the first axis corresponds to the conical section of the expansion sleeve 34 and with the Tapered portion of the expansion sleeve 34 cooperating, hollow cone-shaped portion 37th
  • the expansion sleeve 34 is coupled by means of a thread with the blocking element 33B, whereby in a simple manner by means of a rotary movement of the blocking element 33B, a relative movement in the axial direction, ie in the direction of the first axis A, between the blocking element 33B and the expansion sleeve 34th can be effected, which has the consequence that the expansion sleeve is compressed and an axial relative displacement is blocked or the locking sleeve 34 is expanded and an axial relative displacement is released.
  • 7a to 7c show a fourth exemplary embodiment of a coupling device 40 according to the invention or parts thereof in different views, wherein FIG.
  • FIG. 7a shows a section of a third exemplary embodiment of a valve actuating device 300 according to the invention in longitudinal section through a fourth exemplary embodiment of a coupling device 40 according to the invention in the region of the coupling device 40.
  • 7b shows individual parts of the coupling device from FIG. 7a in an exploded view
  • FIG. 7c shows a detail of the valve actuating device from FIG. 7a in a side view.
  • the locking mechanism of this coupling device 40 works in principle as the locking mechanism of the coupling device 10 of FIGS. 1 a, 1 b and 2.
  • the first coupling element 41 and the blocking element 43B respectively have corresponding sections 46, 47, 48 with a corresponding toothing.
  • section 46 corresponds to section 16 from FIG. 1 b and has a correspondingly formed outer longitudinal spline.
  • Section 47 corresponds to section 17 of FIG. 1 b and is formed without teeth.
  • Section 48 corresponds to section 18 of FIG. 1 b and has a correspondingly formed internal longitudinal toothing.
  • the blocking element 43B is further not fixed to the second coupling element 42 by means of a retaining ring, but can be braced axially against it only by means of a spring element 49 when the blocking element 43B is in the release position.
  • the blocking element 43B is cylindrical.
  • the cylinder bottom of the blocking element 43B is curved inward, and the free end of the second coupling element 42 is correspondingly convexly curved.
  • the blocking element 43B follows the movement of the coupling element 41 fixedly connected to the cam-side tilting-lever part 302B and does not necessarily abut the second coupling element 42.
  • This embodiment of the coupling device 40 has the advantage that the setting of a valve actuation clearance is possible, so that a Nicoinstellvorides can be realized, namely by selecting a spring element with a different length, another spring stiffness and / or on the adjustment of the arrangement of the second coupling element 42nd , In particular by changing the depth of engagement of the second coupling element 42, which is screwed by means of a thread 44 in the associated Kipphebelteil 302A.
  • variable by means of thread 44 in its position in Kipphebelteil 302A or changeable coupling element 42 thus provides an example of a Schiinstellvortechnisch.
  • the Schiinstellvortechnisch can also be implemented with one of the above variants.
  • FIG. 8 shows a fourth exemplary embodiment of a valve actuating device 400 according to the invention with a fifth exemplary embodiment of a coupling device 50 according to the invention, this valve actuating device 400, unlike the valve actuating devices 100, 200 and 300 described above, having a rigid rocker arm 402 and the coupling device 50 according to the invention between the Push rod 406 and the rocker arm 402 is arranged.
  • one of the coupling elements of the coupling device 50 is mechanically coupled to the push rod 406, in particular connected, and the other coupling element with the valve lever 402.
  • the coupling device 50 differs from the previously described coupling devices 10, 20, 30 or 40 in the design of their connection , In terms of its operation, the coupling device 50 is designed in accordance with one of the previously described coupling devices 10, 20, 30 or 40.
  • FIG. 9 shows a fifth exemplary embodiment 500 of a valve actuating device according to the invention with a sixth exemplary embodiment of a coupling device 60 according to the invention, this valve actuating device 500 having a rigid rocker arm 402 and the coupling device 60 according to the invention, unlike the previously described valve actuating devices 100, 200, 300 and 400 is arranged between the rocker arm 502 and a valve 501 to be actuated.
  • one of the coupling elements of the coupling device 60 is mechanically coupled, in particular connected, to the valve lever 502, and the other coupling element to the valve 501.
  • the coupling device 60 differs from the previously described coupling devices 10, 20, 30, 40 and 50 in the embodiment their connection.
  • the coupling device 60 is formed according to one of the previously described coupling devices 10, 20, 30 or 40.
  • FIG. 10 shows a sixth embodiment of a valve operating device 600 according to the invention with a seventh embodiment of a coupling device 70 according to the invention in a schematic representation
  • this valve operating device 600 in contrast to the previously described valve actuators 100, 200, 300, 400 and 500 has a two-piece push rod 606 and the inventive Coupling device 70 between a first push rod part 606A and a second push rod part 606B is arranged.
  • one of the coupling elements of the coupling device 50 is mechanically coupled, in particular connected, to the first pushrod part 606A, and the other coupling element is connected to the second pushrod part 606B.
  • the coupling device 70 differs from the previously described coupling devices 10, 20, 30, 40, 50 and 60 in the design of their connection.
  • the coupling device 70 is designed according to one of the previously described coupling devices 10, 20, 30 or 40.
  • Fig. 1 1 shows a seventh embodiment of a valve operating device 700 according to the invention with an eighth embodiment of a coupling device 80 according to the invention in a schematic representation, this valve operating device 700, in contrast to the previously described valve actuators 100, 200, 300, 400, 500 and 600, a rigid rocker arm 702 and a mechanically coupled with two valves 701 valve bridge 707 and the coupling device 80 according to the invention between the rocker arm 702 and the valve bridge 707 is arranged.
  • one of the coupling elements of the coupling device 80 is mechanically coupled, in particular connected, to the rocker arm 702, and the other coupling element with the valve bridge 707.
  • the coupling device 80 differs from the previously described coupling devices 10, 20, 30, 40, 50, 60 and 70 in the design of their connection.
  • the coupling device 80 is designed in accordance with one of the previously described coupling devices 10, 20, 30 or 40.
  • Fig. 12 shows a section of a reciprocating internal combustion engine according to the invention with two valve actuation devices according to the invention, each with one according to the Fig. 1 a, 1 b and 2 formed according to the invention coupling device 10, 10 'in Top view, wherein the coupling device 10 is shown in the released state and the coupling device 10 'in the locked state.
  • FIG. 13 shows the detail of FIG. 12 in a view obliquely from above, additionally with a slide guide for actuating the locking devices 13 and 13 'of the coupling devices 10, 10'.
  • a rotational movement of the locking device 13, 13 ' can be effected, in particular of the blocking element 13B, 13B', about the first axis, in particular from the release position (see the left half of the picture) in the blocking position (see right half) and / or vice versa, wherein preferably at the blocking element 13, 13 'in each case a first slotted guide element 13A, 13A' is arranged, which is formed with a second, corresponding to the first slotted guide element 13A, 13A 'and in particular axially displaceable, housing-mounted slide guide element 84 , 85 of the slide guide to cooperate.
  • the blocking element 13 or 13 ' is in this embodiment in each case rotatable about an angular range of about 30 degrees in the circumferential direction about the first axis.
  • the first link guide element is a link pin 13A, 13A 'extending radially outwards, in particular a ring-shaped or sleeve-shaped section 13B, 13B' of the blocking device 13, 13 ', in particular the blocking element 13B, 13B', arranged, in the radial direction outwardly extending pin 13A, 13A '.
  • the housing-side mounted second slide guide element 84, 85 is a means of an actuating rod 81, 82 perpendicular to the first axis, in particular tangentially to the first axis axially displaceable claw 84, 85, which is slidably mounted in particular axially displaceable on a guide rod 83 fixed to the housing.
  • the second slide guide element 84, 85 preferably arranged by means of a sliding bearing between an end stop 86 and stop elements 87, 88 axially displaceable on the actuating rod 81, 82 and in each case by means of two spring elements 93, 94 and 95, 96 zwi - see two fixedly connected to the actuating rod 81, 82 annular discs 91, 92 and 89, 90 and / or paragraphs clamped, wherein the spring force and the length of the spring elements 93, 94 and 95, 96 is selected such that a lateral displacement of the Actuating rod 81, 82 as a result of a switching operation only to an axial displacement of the actuating rod 81, 82 and thus only to an actuation of the locking element 13 B, 13 B 'leads, when the coupling device 10, 10' along the first axis A is almost no load or no load, ie is almost or completely free of axial
  • the slotted guide is designed such that the actuation of the locking element 13, 13 ', i. the rotation of which is triggered after a switching operation, when the respective rolling off on the cam valve actuating element on the base circle of the valve actuation causing cam rolls.
  • the actuation of the actuating rod of the slotted guide in particular its axial displacement, hydraulically, electromagnetically, pneumatically, and / or electromechanical, the latter for example by means of a linear drive, a rack, a ball screw, a spindle or the like.
  • the respective blocking element 13A, 13A 'associated with a cylinder is first actuated after a switching operation, in particular triggered only when the spring biasing force applied by the switching operation and applied to the claw 84, 85 is greater than that due to the coupling device 10, 10 'acting friction in follow the axial forces applied to the coupling device 10, 10 '.
  • a suitable design of the slotted guide can be achieved in this way that the blocking element 13B, 13B 'only in almost load-free or load-free state actuated, in particular rotated. Thereby, the wear of the valve operating device, in particular the coupling device 10, 10 ', can be significantly reduced.
  • the switching operation can be simplified. This is particularly advantageous in Hubkol- benbrennkraftmaschinen with more than four, especially with more than 8 cylinders.
  • valve actuation device 400 500, 600, 700 according to the invention

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

La présente invention concerne un dispositif de couplage pour un dispositif d'actionnement de soupapes pour l'actionnement d'au moins une soupape d'un moteur à piston avec une levee de soupape variable, en particulier pour un dispositif d'actionnement de soupapes d'un moteur à combustion interne à piston, un dispositif d'actionnement de soupapes et un moteur à piston, le dispositif de couplage comprenant un premier élément de couplage, un deuxième élément de couplage et un dispositif de verrouillage. Le premier élément de couplage et le deuxième élément de couplage peuvent être déplacés l'un par rapport à l'autre au moins dans des limites définies le long d'un premier axe, le déplacement relatif entre les deux éléments de couplage le long du premier axe pouvant être bloqué dans au moins une première direction au moyen du dispositif de verrouillage. Le dispositif de verrouillage comprend un élément de verrouillage pouvant au moins être tourné dans la direction périphérique autour du premier axe dans une zone définie, le déplacement relatif entre les deux éléments de couplage le long du premier axe étant bloqué au moins dans la première direction lorsque l'élément de verrouillage se trouve dans une position de blocage.
EP18748919.0A 2017-08-01 2018-08-01 Dispositif de couplage pour un dispositif d'actionnement de soupapes Pending EP3662146A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50643/2017A AT520278B1 (de) 2017-08-01 2017-08-01 Kopplungsvorrichtung für eine Ventilbetätigungsvorrichtung
PCT/EP2018/070916 WO2019025511A1 (fr) 2017-08-01 2018-08-01 Dispositif de couplage pour un dispositif d'actionnement de soupapes

Publications (1)

Publication Number Publication Date
EP3662146A1 true EP3662146A1 (fr) 2020-06-10

Family

ID=63077880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18748919.0A Pending EP3662146A1 (fr) 2017-08-01 2018-08-01 Dispositif de couplage pour un dispositif d'actionnement de soupapes

Country Status (5)

Country Link
US (1) US11377984B2 (fr)
EP (1) EP3662146A1 (fr)
CN (1) CN111448369B (fr)
AT (1) AT520278B1 (fr)
WO (1) WO2019025511A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020216474A1 (fr) 2019-04-26 2020-10-29 Eaton Intelligent Power Limited Capsules et culbuteur de désactivation
AT524194B1 (de) 2020-08-24 2022-12-15 Avl List Gmbh Ventilbetätigungsvorrichtung
AT524195B1 (de) 2020-08-24 2023-01-15 Avl List Gmbh Ventilbetätigungsvorrichtung mit Schaltvorrichtung
AT524829B1 (de) 2021-02-18 2023-03-15 Avl List Gmbh Ventilbetätigungsvorrichtung
KR20240051244A (ko) * 2021-09-01 2024-04-19 커민즈 인코포레이티드 실린더 비활성화 및 선택적 밸브 리프트 능력을 갖는 로커 시스템
WO2023099037A1 (fr) * 2021-12-03 2023-06-08 Eaton Intelligent Power Limited Pontet avec douille cannelée intégrée pour mouvement perdu
EP4194667A1 (fr) 2021-12-07 2023-06-14 AVL Hungary Kft. Moteurs à combustion interne à actionnement de soupape variable
WO2024079642A1 (fr) * 2022-10-12 2024-04-18 Cummins Inc. Système d'actionnement de soupape avec dispositif à perte de mouvement distinct

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2017820B (en) * 1978-04-01 1982-11-10 Daimler Benz Ag Multicylinder internal combustion engine with means for interrupting valve operation
CA1133342A (fr) * 1980-03-28 1982-10-12 Laszlo Tamas Systeme de neutralisation d'un cylindre, et commande connexe
US4901685A (en) * 1986-12-19 1990-02-20 Honda Giken Kogyo Kabushiki Kaisha Valve operating mechanism for an internal combustion engine
US6273039B1 (en) * 2000-02-21 2001-08-14 Eaton Corporation Valve deactivating roller following
US6418904B2 (en) * 2000-04-03 2002-07-16 Daimlerchrysler Corporation Pulse drive valve deactivator
ITTO20060563A1 (it) 2006-07-28 2008-01-29 Eaton Srl Dispositivo di comando alzata per una valvola a stelo di motore a combustione interna o macchina operatrice
DE102008013566A1 (de) 2007-04-25 2008-10-30 Schaeffler Kg Schaltbares Bauteil für einen Ventiltrieb einer Brennkraftmaschine
DE102007033757A1 (de) 2007-07-18 2009-01-22 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Schaltelement für ein hydraulisches Ventilspielausgleichselement im Ventilsteuertrieb einer Brennkraftmaschine
DE102009006894B4 (de) 2009-01-28 2010-10-14 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Vorrichtung zur Schaltbetätigung eines hydraulischen Ventilspielausgleichselements
US9790824B2 (en) 2010-07-27 2017-10-17 Jacobs Vehicle Systems, Inc. Lost motion valve actuation systems with locking elements including wedge locking elements
FR2969707B1 (fr) 2010-12-22 2014-08-08 Valeo Sys Controle Moteur Sas Dispositif d'actionnement de soupape a possibilite de desactivation et moyens de verrouillage d'un tel dispositif.
DE102012203702A1 (de) * 2012-03-08 2013-09-12 Man Diesel & Turbo Se Ventiltrieb für eine Brennkraftmaschine und Brennkraftmaschine
DE102013215946A1 (de) 2013-08-12 2015-02-12 Avl List Gmbh Ventilbetätigungseinrichtung zur Veränderung des Ventilhubs

Also Published As

Publication number Publication date
AT520278B1 (de) 2022-01-15
US11377984B2 (en) 2022-07-05
US20200300131A1 (en) 2020-09-24
CN111448369A (zh) 2020-07-24
CN111448369B (zh) 2022-07-19
WO2019025511A1 (fr) 2019-02-07
AT520278A1 (de) 2019-02-15

Similar Documents

Publication Publication Date Title
AT520278B1 (de) Kopplungsvorrichtung für eine Ventilbetätigungsvorrichtung
EP2396522A1 (fr) Commande de soupape d'un moteur à combustion interne
DE102010013216A1 (de) Ventiltrieb einer Brennkraftmaschine
WO2012143078A1 (fr) Dispositif servant à faire varier un taux de compression d'un moteur à combustion interne à piston alternatif
DE102016215279A1 (de) Längenverstellbare Pleuelstange
AT517112A4 (de) Längenverstellbare pleuelstange
AT519012B1 (de) Hubkolbenmaschine, insbesondere brennkraftmaschine
DE102011085706A1 (de) Ventiltrieb einer Brennkraftmaschine
EP2636859A1 (fr) Commande de soupape pour un moteur à combustion et moteur à combustion
DE102011002136B4 (de) Schaltbare Nockenwelle
AT517816B1 (de) Variable ventilsteuerungseinrichtung für brennkraftmaschinen
DE102008027649A1 (de) Ventilbetrieb für eine Brennkraftmaschine
AT519812B1 (de) Mechanische Ventilbetätigungsvorrichtung
DE102012016356A1 (de) Verstellbare Nockenwelle und Verbrennungsmotor
EP1608851B1 (fr) Dispositif de commande variable de soupapes d'echange des gaz pour moteurs a combustion interne et procede de fonctionnement d'un dispositif de ce type
DE102018111185A1 (de) Variabler Ventiltrieb eines Verbrennungskolbenmotors und Verfahren zu dessen Steuerung
DE102011085707A1 (de) Vorrichtung zur Veränderung der Ventilhubcharakteristik eines Ventiltriebs einer Brennkraftmaschine
DE102017205814A1 (de) Mechanische Ventilbetätigungsvorrichtung
DE102014208601B4 (de) Nockenwellenversteller mit längenveränderlichem Einlegeteil
AT524195B1 (de) Ventilbetätigungsvorrichtung mit Schaltvorrichtung
DE102012004911B4 (de) Ventiltrieb einer Brennkraftmaschine
AT524194B1 (de) Ventilbetätigungsvorrichtung
DE102020210264A1 (de) Sensorrad mit Arretierabschnitt, Sensorsystem und Schiebenockensystem mit Sensorrad
EP3173593B1 (fr) Commande de soupape variable comprenant un culbuteur
WO2004085802A1 (fr) Dispositif d'actionnement variable des soupapes d'echange des gaz de moteurs a combustion interne et procede permettant de faire fonctionner un dispositif de ce type

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200221

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SALMUTTER, THOMAS

Inventor name: KLAMPFER, MARTIN

Inventor name: GELTER, JUERGEN

Inventor name: ZURK, ANDREAS

DAV Request for validation of the european patent (deleted)
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: 20220525

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230503

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: 20240430