DE10310220A1 - Equipment coupling or de-coupling operating levers of engine valve, includes blocking component inserted between first and second operating levers - Google Patents
Equipment coupling or de-coupling operating levers of engine valve, includes blocking component inserted between first and second operating levers Download PDFInfo
- Publication number
- DE10310220A1 DE10310220A1 DE10310220A DE10310220A DE10310220A1 DE 10310220 A1 DE10310220 A1 DE 10310220A1 DE 10310220 A DE10310220 A DE 10310220A DE 10310220 A DE10310220 A DE 10310220A DE 10310220 A1 DE10310220 A1 DE 10310220A1
- Authority
- DE
- Germany
- Prior art keywords
- lever
- blocking element
- operating
- coupling
- operating lever
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- 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
- F01L2305/00—Valve arrangements comprising rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
- F01L2820/031—Electromagnets
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Koppelung bzw. Entkoppelung zweier Betätigungshebel eines Ventiltriebes einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren hierzu nach dem Oberbegriff des Anspruchs 11.The invention relates to a device for the coupling or decoupling of two actuating levers of a valve drive an internal combustion engine according to the preamble of claim 1 and a method for this according to the preamble of claim 11.
Eine derartige Vorrichtung zur Koppelung bzw.
Entkoppelung zweier Betätigungshebel
eines Ventiltriebes einer Brennkraftmaschine ist aus der
Die
Die
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zur Koppelung bzw. Entkoppelung zweier Betätigungshebel eines Ventiltriebes einer Brennkraftmaschine zu schaffen, die bei einfachem Aufbau verschleiß- und reibungsfrei mit einer hohen Betriebssicherheit arbeitet.The invention is based on the object Device and a method for coupling or decoupling two actuating lever a valve train of an internal combustion engine to provide at simple construction wear- and works without friction with a high level of operational safety.
Diese Aufgabe wird bei einer Vorrichtung zur Koppelung bzw. Entkoppelung zweier Betätigungshebel eines Ventiltriebes einer Brennkraftmaschine mit den kennzeichnenden Merkmalen des Anspruchs 1 und bei einem Verfahren zur Koppelung bzw. Entkoppelung zweier Betätigungshebel eines Ventiltriebes einer Brennkraftmaschine mit den kennzeichnenden Merkmalen des Anspruchs 11 gelöst.This task is in a device for the coupling or decoupling of two actuating levers of a valve drive an internal combustion engine having the characterizing features of claim 1 and in a method for coupling or decoupling two actuating lever a valve train of an internal combustion engine with the characterizing Characteristics of claim 11 solved.
Ein wesentlicher Vorteil der Erfindung liegt darin, dass durch die erfindungsgemässe Art der Koppelung kein Spiel zwischen Außenhebel und Nocken notwendig ist, da die Koppelung über das zwischen die Betätigungshebel eingeschobene Sperrelement und nicht über einen in eine Aufnahme eingeschobenen Bolzen erfolgt. Dadurch liegt der Außenhebel immer am Nocken an und die Nockenkontur des Außenhebels muss keine Rampenfunktion enthalten. Der Ventilhub ist konstant.A significant advantage of the invention lies in the fact that by the inventive type of coupling no Game between outside lever and cam is necessary because the coupling over the between the operating lever inserted blocking element and not one in a receptacle inserted bolt takes place. This is the outer lever always on the cam and the cam contour of the outer lever does not have a ramp function contain. The valve lift is constant.
Vorteilhafterweise wird ein keilförmiges Sperrelement verwendet, das soweit verschiebbar ist, dass es die auftretenden Toleranzen überbrücken kann. Der Steigungswinkel des Keils muss dabei so klein sein, dass die auf das Sperrelement in Querachsenrichtung wirkende Querkraft kleiner als die Haftreibungskraft (Selbsthemmung) des Sperrelements ist.Advantageously, a wedge-shaped blocking element used that is as far as possible that it is the occurring Can bridge tolerances. The pitch angle of the wedge must be so small that the acting on the locking element in the transverse axis direction transverse force smaller as the static friction (self-locking) of the blocking element is.
Ein weiterer Vorteil der Erfindung liegt darin, dass die Kraft induktiv in das Betätigungselement eingekoppelt wird. Im Grunde genommen findet eine berührungslose Krafteinspeisung vom zylinderkopffesten Elektromagneten in das bewegte Element statt, wodurch die Vorrichtung verschleiß- und reibungsfrei mit einer hohen Betriebssicherheit arbeitet. In vertikaler Richtung kann der bewegte Anker stets alle erfor derlichen Bewegungen ausführen. In horizontaler Richtung besteht im entkoppelten Zustand der Elemente zwischen Anker und Joch ein konstanter geringer Luftspalt, welcher eine kleine Dimensionierung des Elektromagneten und einen geringen Stromverbrauch erlaubt.Another advantage of the invention lies in the fact that the force inductively coupled into the actuator becomes. Basically, there is a non-contact power supply from the cylinder-head-fixed electromagnet into the moving element, whereby the device wear and without friction with a high operational reliability works. In the vertical direction of the Moving anchors always perform all neces sary movements. In horizontal direction consists in the decoupled state of the elements between anchor and yoke a constant small air gap, which a small dimensioning of the electromagnet and a low power consumption allowed.
Vorteilhafterweise ist der Ventiltrieb durch die Vorrichtung auf zwei unterschiedliche Ventilhübe schaltbar ausgelegt, indem die Betätigungshebel des Ventiltriebes koppelbar sind. Im gekoppelten Zustand von Innenhebel und Außenhebel wird der Nockenhub über den Außenhebel auf das Gaswechselventil übertragen. Eine Entkoppelung bewirkt eine Deaktivierung bzw. einen Leerhub des Außenhebels, so dass das Gaswechselventil nur vom Innenhebel beaufschlagt wird. Mit dieser Vorrichtung lassen sich also zwei Betriebszustände schalten, nämlich „grosser Hub" und „kleiner Hub". Im entkoppelten Zustand läuft der Außenhebel trotz Nockenbeaufschlagung leer und wird über die Leerhubfeder in die Ausgangsposition zurückgebracht. Zusätzlich ist mit dieser Vorrichtung auch eine Umschaltung zwischen „grossem Hub" bzw. „kleinem Hub" und „Leerhub" denkbar.Advantageously, the valve train is designed by the device switchable to two different valve lifts by the operating lever of Valve gear can be coupled. In the coupled state of the inner lever and the outer lever, the cam lift is transmitted to the gas exchange valve via the outer lever. A decoupling causes a deactivation or a Leerhub the outer lever, so that the gas exchange valve is acted upon only by the inner lever. Thus, two operating states can be switched with this device, namely "large stroke" and "small stroke". In the decoupled state, the outer lever runs empty despite cam engagement and is returned via the Leerhubfeder to the starting position. In addition, with this device, a switch between "large stroke" or "small stroke" and "idle stroke" conceivable.
Weitere Ausgestaltungen und Vorteile der Erfindung gehen aus den übrigen Unteransprüchen und der Beschreibung hervor.Further embodiments and advantages the invention go from the rest Subclaims and the description.
In den Zeichnungen ist die Erfindung anhand eines Ausführungsbeispieles erläutert, und zwar zeigen:In the drawings, the invention based on an embodiment explains and show:
Der Innenhebel
Der Außenhebel
Das System besteht also aus zwei
Hebeln, dem Innenhebel
Um das Gaswechselventil
Gemäss
Wie bereits erwähnt weist das Joch
Um ein verschleiß- und reibungsfreies Betreiben
der Vorrichtung zu ermöglich,
sind sowohl Spule
Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10310220A DE10310220A1 (en) | 2003-03-08 | 2003-03-08 | Equipment coupling or de-coupling operating levers of engine valve, includes blocking component inserted between first and second operating levers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10310220A DE10310220A1 (en) | 2003-03-08 | 2003-03-08 | Equipment coupling or de-coupling operating levers of engine valve, includes blocking component inserted between first and second operating levers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10310220A1 true DE10310220A1 (en) | 2004-09-16 |
Family
ID=32864299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10310220A Withdrawn DE10310220A1 (en) | 2003-03-08 | 2003-03-08 | Equipment coupling or de-coupling operating levers of engine valve, includes blocking component inserted between first and second operating levers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10310220A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004046599A1 (en) * | 2004-09-25 | 2006-04-20 | Ina-Schaeffler Kg | Switchable cam follower installing method for internal combustion engine, involves aligning retainers of respective inner and outer levers for transverse axis to each other, and fastening transverse axis opposite to retainer of outer lever |
WO2006087076A1 (en) * | 2005-02-16 | 2006-08-24 | Schaeffler Kg | Switchable rocker arm of a valve drive pertaining to an internal combustion engine |
EP1736639A2 (en) * | 2005-06-20 | 2006-12-27 | Hitachi, Ltd. | Valve actuation device of internal combustion engine |
DE102006013566A1 (en) * | 2006-03-24 | 2007-09-27 | Schaeffler Kg | Switchable lever for a valve drive of an internal combustion engine comprises an outer lever having a recess for an inner lever arranged on an axle which is arranged on one end of the outer lever |
DE102006031945A1 (en) * | 2006-07-11 | 2008-01-24 | Schaeffler Kg | Adjustable rocker arm for valve train of internal combustion engine, has coupler located in recess of levers and brought in contact with levers for case of coupling in sectionwise, and lost-motion spring directly mounted on supporting unit |
DE102006046573A1 (en) * | 2006-09-30 | 2008-04-03 | Schaeffler Kg | Switchable drag lever of a valve train of an internal combustion engine |
WO2008077727A1 (en) * | 2006-12-22 | 2008-07-03 | Schaeffler Kg | Switchable drag lever for a valve timing mechanism of an internal combustion engine, and method for mounting a switchable drag lever |
EP2050933A1 (en) * | 2007-10-17 | 2009-04-22 | Delphi Technologies, Inc. | Valve operating system comprising a two-step roller finger follower |
EP2305966A1 (en) * | 2005-09-16 | 2011-04-06 | Koyo Bearings USA, LLC | Switching finger follower assembly |
WO2012069215A1 (en) * | 2010-11-25 | 2012-05-31 | Schaeffler Technologies AG & Co. KG | Switchable cam follower |
DE102016211146A1 (en) * | 2016-06-22 | 2017-12-28 | Schaeffler Technologies AG & Co. KG | Switchable drag lever |
CN109072727A (en) * | 2016-03-11 | 2018-12-21 | 伊顿智能动力有限公司 | It is inductively coupled to rocking arm set component |
EP3303782A4 (en) * | 2015-06-04 | 2019-01-23 | Eaton Corporation | Electrically latching rocker arm assembly having built-in obd functionality |
US10662825B2 (en) | 2016-10-17 | 2020-05-26 | Eaton Intelligent Power Limited | Control based on magnetic circuit feedback |
US10662826B2 (en) | 2016-10-17 | 2020-05-26 | Eaton Intelligent Power Limited | OBD based on magnetic circuit feedback |
US10731516B2 (en) | 2018-07-13 | 2020-08-04 | Eaton Intelligent Power Limited | Sliding spring contacts providing electrical power to rocker arms |
US10731517B2 (en) | 2015-03-30 | 2020-08-04 | Eaton Intelligent Power Limited | Valvetrain with rocker arm housing magnetic latch |
US11002156B2 (en) | 2015-08-18 | 2021-05-11 | Eaton Intelligent Power Limited | Non-contacting actuator for rocker arm assembly latches |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4212844A1 (en) * | 1992-04-16 | 1993-10-21 | Audi Ag | Valve actuation mechanism for an internal combustion engine |
US5490486A (en) * | 1994-10-05 | 1996-02-13 | Ford Motor Company | Eight cylinder internal combustion engine with variable displacement |
US5544626A (en) * | 1995-03-09 | 1996-08-13 | Ford Motor Company | Finger follower rocker arm with engine valve deactivator |
DE10211038A1 (en) * | 2001-05-15 | 2002-11-28 | Ford Global Tech Dearborn | rocker |
-
2003
- 2003-03-08 DE DE10310220A patent/DE10310220A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4212844A1 (en) * | 1992-04-16 | 1993-10-21 | Audi Ag | Valve actuation mechanism for an internal combustion engine |
US5490486A (en) * | 1994-10-05 | 1996-02-13 | Ford Motor Company | Eight cylinder internal combustion engine with variable displacement |
US5544626A (en) * | 1995-03-09 | 1996-08-13 | Ford Motor Company | Finger follower rocker arm with engine valve deactivator |
DE10211038A1 (en) * | 2001-05-15 | 2002-11-28 | Ford Global Tech Dearborn | rocker |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004046599A1 (en) * | 2004-09-25 | 2006-04-20 | Ina-Schaeffler Kg | Switchable cam follower installing method for internal combustion engine, involves aligning retainers of respective inner and outer levers for transverse axis to each other, and fastening transverse axis opposite to retainer of outer lever |
WO2006087076A1 (en) * | 2005-02-16 | 2006-08-24 | Schaeffler Kg | Switchable rocker arm of a valve drive pertaining to an internal combustion engine |
US7503300B2 (en) | 2005-02-16 | 2009-03-17 | Schaeffler Kg | Switchable rocker arm of a valve drive pertaining to an internal combustion engine |
EP1736639A2 (en) * | 2005-06-20 | 2006-12-27 | Hitachi, Ltd. | Valve actuation device of internal combustion engine |
EP1736639A3 (en) * | 2005-06-20 | 2009-10-28 | Hitachi, Ltd. | Valve actuation device of internal combustion engine |
EP2305966A1 (en) * | 2005-09-16 | 2011-04-06 | Koyo Bearings USA, LLC | Switching finger follower assembly |
DE102006013566A1 (en) * | 2006-03-24 | 2007-09-27 | Schaeffler Kg | Switchable lever for a valve drive of an internal combustion engine comprises an outer lever having a recess for an inner lever arranged on an axle which is arranged on one end of the outer lever |
WO2007110315A1 (en) * | 2006-03-24 | 2007-10-04 | Schaeffler Kg | Switching finger follower |
DE102006031945A1 (en) * | 2006-07-11 | 2008-01-24 | Schaeffler Kg | Adjustable rocker arm for valve train of internal combustion engine, has coupler located in recess of levers and brought in contact with levers for case of coupling in sectionwise, and lost-motion spring directly mounted on supporting unit |
DE102006046573A1 (en) * | 2006-09-30 | 2008-04-03 | Schaeffler Kg | Switchable drag lever of a valve train of an internal combustion engine |
WO2008077727A1 (en) * | 2006-12-22 | 2008-07-03 | Schaeffler Kg | Switchable drag lever for a valve timing mechanism of an internal combustion engine, and method for mounting a switchable drag lever |
EP2050933A1 (en) * | 2007-10-17 | 2009-04-22 | Delphi Technologies, Inc. | Valve operating system comprising a two-step roller finger follower |
WO2012069215A1 (en) * | 2010-11-25 | 2012-05-31 | Schaeffler Technologies AG & Co. KG | Switchable cam follower |
US8783219B2 (en) | 2010-11-25 | 2014-07-22 | Schaeffler Technologies Gmbh & Co. Kg | Switchable cam follower |
CN103228875B (en) * | 2010-11-25 | 2015-10-14 | 舍弗勒技术股份两合公司 | Adjustable rocker arms |
CN103228875A (en) * | 2010-11-25 | 2013-07-31 | 谢夫勒科技股份两合公司 | Switchable cam follower |
US10731517B2 (en) | 2015-03-30 | 2020-08-04 | Eaton Intelligent Power Limited | Valvetrain with rocker arm housing magnetic latch |
EP3303782A4 (en) * | 2015-06-04 | 2019-01-23 | Eaton Corporation | Electrically latching rocker arm assembly having built-in obd functionality |
US11002156B2 (en) | 2015-08-18 | 2021-05-11 | Eaton Intelligent Power Limited | Non-contacting actuator for rocker arm assembly latches |
CN109072727A (en) * | 2016-03-11 | 2018-12-21 | 伊顿智能动力有限公司 | It is inductively coupled to rocking arm set component |
EP3426898A4 (en) * | 2016-03-11 | 2019-10-09 | Eaton Intelligent Power Limited | Inductive coupling to rocker arm assemblies |
CN109072727B (en) * | 2016-03-11 | 2021-06-15 | 伊顿智能动力有限公司 | Valve train for an internal combustion engine and method for operating such an internal combustion engine |
DE102016211146A1 (en) * | 2016-06-22 | 2017-12-28 | Schaeffler Technologies AG & Co. KG | Switchable drag lever |
US10662826B2 (en) | 2016-10-17 | 2020-05-26 | Eaton Intelligent Power Limited | OBD based on magnetic circuit feedback |
US10662825B2 (en) | 2016-10-17 | 2020-05-26 | Eaton Intelligent Power Limited | Control based on magnetic circuit feedback |
US10731516B2 (en) | 2018-07-13 | 2020-08-04 | Eaton Intelligent Power Limited | Sliding spring contacts providing electrical power to rocker arms |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8130 | Withdrawal |