EP1119689B1 - Ventiltrieb - Google Patents

Ventiltrieb Download PDF

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Publication number
EP1119689B1
EP1119689B1 EP99970148A EP99970148A EP1119689B1 EP 1119689 B1 EP1119689 B1 EP 1119689B1 EP 99970148 A EP99970148 A EP 99970148A EP 99970148 A EP99970148 A EP 99970148A EP 1119689 B1 EP1119689 B1 EP 1119689B1
Authority
EP
European Patent Office
Prior art keywords
assembly
rocker arm
fulcrum
rocker
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99970148A
Other languages
English (en)
French (fr)
Other versions
EP1119689A1 (de
EP1119689B2 (de
Inventor
Majo Cecur
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.)
Eaton SRL
Original Assignee
Eaton Automotive SpA
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
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Application filed by Eaton Automotive SpA filed Critical Eaton Automotive SpA
Publication of EP1119689A1 publication Critical patent/EP1119689A1/de
Application granted granted Critical
Publication of EP1119689B1 publication Critical patent/EP1119689B1/de
Publication of EP1119689B2 publication Critical patent/EP1119689B2/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • 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
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F01L2001/187—Clips, e.g. for retaining rocker arm on pivot
    • 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
    • F01L2001/188—Fulcrums at upper surface
    • 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 valve train assembly for an internal combustion engine, and to rocker arms for such an assembly.
  • the invention is particularly but not exclusively related to arrangements in which the number of parts in the assembly is reduced, in which various parts can be pre-assembled to facilitate engine assembly, and in which various pans are made more simply.
  • a valve train assembly for a internal combustion engine comprises a valve train carrier having a plurality of individual rocker arm fulcra, and a rocker arm attached to each fulcrum.
  • the carrier may also have one or more camshafts mounted thereto.
  • Such an arrangement can be provided as a pre-assembled unit for fitting to a cylinder head having valves mounted therein. thus substantially facilitating the assembly of an engine.
  • Each fulcrum may form part of a hydraulic lash adjuster. Accordingly, since the lash adjusters would be fixedly mounted to the carrier, they are more easily supplied with oil, so that a smaller oil pump producing relatively low pressure can be used.
  • each rocker arm and its associated fulcrum have co-operating part-spherical surfaces which permit not only the pivoting motion required for operating the valves, but also a degree of rotation about the length of the rocker arm, to provide a self-adjusting function.
  • the rocker arm has a part-spherical recess into which a part-spherical projection is located.
  • the profile of the recess may comprise several, e.g. three, spherical segments of slightly different diameter tangential to each other, sometimes referred to as a gothic socket.
  • the rocker arm may be attached to the projection by means of a clip, possibly made of spring steel. which is fitted over the head of the projection.
  • rocker arms do not need to be fitted to rocker axles, they may be made smaller and lighter compared to existing aluminium or steel rockers.
  • the rockers are made of pressed sheet metal (with the final thickness possibly increased or decreased by the pressing operation to provide suitable weight/strength properties), and their lightness enables the use of lighter valve springs resulting in lower energy consumption.
  • rockers of equal length for all the valves. Accordingly, the rockers can be substantially identical, thereby reducing manufacturing costs.
  • Fig. 1 shows a prior art rocker (B') made of pressed aluminium, and comprising a lever of the first order mounted on a fixed axle (70), which also carries other rockers arranged in a row.
  • One end of the rocker (B') is in contact with a cam (C) by means of a roller (R'), while the other end has a reciprocating and pivoting hydraulic lash adjuster, referred to also as a tappet (80).
  • the tappet has a spigot or projection (81) at the base acting on the head of a valve (V).
  • a double row of camshafts (A') acts on convex surfaces of rollers (R').
  • Fig. 2 shows an example of a rocker arm arrangement according to the present invention.
  • the rocker (B) of the present invention is again a lever of the first order, i.e. it is a centre-pivoted rocker arm.
  • the rocker (B) is mounted on a tappet (4) placed between a first end of the rocker (B), which is fitted with a roller (R) displaced and pushed against a cam (C) on the camshaft, and a second end, which transmits the pressure to open the poppet valve (V) against the resilient force of a spring (M).
  • the rocker (B) shown in Figs. 3 to 6 is made up of two lateral flanges (12) and (12'), linked by an upper plate (13), with which it forms a U-shaped section, and is formed by bending or stamping a sheet of steel.
  • a hemispherical recess (14) is formed in the plate (13), suitable for mating with the hemispherical head (41) of a spigot or projection (42) which is part of a lash adjuster or tappet (4).
  • the tappet (4) is fitted in its own fixed seat (45, Fig. 7) formed by boring an aluminium cover (L) of the engine head.
  • the cover (L) constitutes a valve train carrier, and is discussed further below.
  • this spigot forms a fulcrum about which the rocker arm (B) can reciprocate in order to operate the valve (V), and around which the rocker arm may be laterally turned. It will be noted in particular that the rocker arm can rotate about an axis X (Fig. 4) and about the axis of the spigot (42), to provide a degree of self-adjustment for the purposes set out below.
  • Rocker (B) comprises at one end a transverse opening (15) into which a pivoting trunnion (16) is fitted, the trunnion (16) having opposing recesses (17), one of which presses onto the head of the stem of the valve (V), adjusting itself in accordance with the relative movement of the rocker arm (B) of the valve shaft, which may vary depending on the type of engine.
  • roller (R) having needle bearings and located on an axle (20) extending through openings (22) provided in flanges (12) and (12').
  • Roller (R) is very simple, with a straight cylindrical outside surface which closely fits the outside surface of cam (C) since as described above the rocker, with its fulcrum on the hemispherical recess (14), automatically compensates for any imperfection in transverse movement, thus making a convex outside surface, as required in customary design, unnecessary.
  • a resilient sheet (25) is used with flanges (26) folded back on themselves so that the lower section can be attached to the rocker flanges (see Fig. 5).
  • the resilient sheet has an inlet (27) at the top for the purpose of lubricating the trunnion (16).
  • the sheet (30) may be made of spring steel, and has an aperture which allows the rocker arm (B) to be easily snap-fitted over the head (41) of the spigot (42) and thus attached to the cover (L). The sheet (30) thus retains the rocker arm (B) on the cover (L) without inhibiting any intended operational movement of the rocker arm.
  • the projection or spigot (42) has a relatively narrow neck leading to the enlarged, part-spherical head (41), so that the aperture in the sheet (30), which has a diameter slightly larger than that of the neck, can be used to hold the rocker arm in place.
  • the aperture is elongate, with its longitudinal axis extended substantially parallel to the length of the rocker arm, so as to facilitate fitting the rocker arm to the tappet (4), and to permit a degree of freedom of movement in the longitudinal direction to ensure proper engagement with the cam shaft and valve.
  • alternative arrangements are possible.
  • the rocker arm could be fastened to the head (41) by means of a rivet or other member extending through the rocker arm into a recess at the end of the head (41), possibly engaging therein by means of a screw thread or by a resilient enlarged portion which engages in an annular ridge within the recess.
  • the means attaching the rocker arm to the fulcrum be fairly loose, and arranged so as not to inhibit the intended operational movement of the rocker arm.
  • Fig. 7 is a detailed view of the tappet (4), which keeps rocker (B) pressed against one end of the valve head (V) by means of the pivoting trunnion (16), and at the other end against the cam (C) by means of roller (R).
  • Within the lower part of the chamber (43) is a high pressure tappet chamber (47), whilst above is a plunger (48) which houses a low-pressure oil reservoir (49). The oil is supplied through the inlet (50) and channels (51) in the cover (L).
  • Inlets (46) and (46') are provided in the spigot (42) for the purpose of lubricating the hemispherical end (41) which acts as the fulcrum.
  • FIGs. 8 and 9 show from the side and from above, respectively, the arrangement of a valve control train using rockers (B1), (B2), ... as described above, for operating valves V1, V2, ... in an internal combustion engine with a single central camshaft (A).
  • the engine cylinder head has a lower head part (65) into which the valves (V1) and (V2) are installed. Their springs (M) are located in recesses (60) of the lower head (65).
  • valve train carrier formed by the cover (L) has fitted thereto the rocker arms (B1) and (B2), together with any other rocker arms required for the engine (see Fig. 9).
  • This therefore forms a self-supporting assembly which can be manufactured and sold separately from the rest of the engine and provided in a pre-assembled state ready for fitting to the engine.
  • the individual fitting of the rocker arms can be carried out as a separate operation, so the final assembly of the engine is significantly simpler.
  • valve carrier can supply different versions of the valve carrier, all for fitting to the same engine head, but made to different specifications.
  • one version may have hydraulic lash adjusters and rocker arms provided with rollers, and another, less-expensive one may have mechanical lash adjusters and a fixed cam-engaging surface on the rocker arms rather than rollers. This facilitates the production of different types of engines, suited to the customer, while still enabling a simple assembly procedure.
  • the location of the respective fulcra on the cover (L) can be selected such that all the rocker arms may have the same length, and therefore can if desired be constructed identically.
  • the camshaft is also fitted to the cover (L) during pre-assembly.
  • Figs. 10 and 11 show an alternative embodiment of the invention, in which twin camshafts (A1, A2) drive respective rows of rocker arms (B).
  • the aluminium valve train carrier (L) is best illustrated in Fig. 11, which shows identical rocker arms (B) mounted in two lines, the arms within each line being positioned in a staggered arrangement so that they are suitably located for driving the inlet and outlet exhaust valves.
  • the camshafts (A1, A2) are also preferably mounted to the carrier (L) before the entire assembly is fitted to the lower cylinder head of the engine.
  • the carriers (L) of either embodiment may have channels for distributing oil to the valve trains; indeed, all the required oil channels may be located in the carrier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)

Claims (22)

  1. Eine Ventiltriebanordnung, die Folgendes aufweist:
    einen Ventiltriebträger, mit einer Vielzahl von individuellen Kipparmdrehpunkten, deren jeder einen Teil einer Splelelnstellvorrichtung bildet; und
    eine Vielzahl von Kipparmen, deren jeder an einem entsprechenden Drehpunkt angebracht und um diesen schwenkbar ist;
    dadurch gekennzeichnet, dass die Anordnung gesondert von, aber betriebsmäßig anbringbar an einem Verbrennungsmotor hergestellt, und sodann vor-zusammengebaut wurde derart, dass die Kipparme durch Nocken bewegbar sind, um die Ventile des Motors zu betätigen.
  2. Eine Anordnung nach Anspruch 1, wobei jede Spieleinstellvorrichtung eine hydraulische Spieleinstellvorrichtung ist.
  3. Eine Anordnung nach Anspruch 1 oder 2, wobei der Kipparm einen Hebel erster Ordnung bildet.
  4. Eine Anordnung nach einem vorhergehenden Anspruch, wobei der Kipparm eine teilsphärische Oberfläche besitzt, und zwar zum Zusammenpassen mit einer entsprechenden Oberfläche des Drehpunkts an dem dieser angebracht ist.
  5. Eine Anordnung nach einem vorhergehenden Anspruch, wobei der Kipparm durch Deformation eines Blechs gebildet ist.
  6. Eine Anordnung nach einem der Ansprüche 1 bis 3, wobei jeder Kipparm durch Formen bzw.Deformieren eines Blechs gebildet ist, und wobei die erwähnte Formung bzw. Deformation auch eine teilsphärische Oberfläche zum Zusammenpassen mit einer entsprechenden Oberfläche des Drehpunkts an dem der Kipparm angebracht ist, bildet.
  7. Eine Anordnung nach einem vorhergehenden Anspruch, wobei die Kipparme sämtlich im Wesentlichen die gleiche Länge besitzen.
  8. Eine Anordnung nach Anspruch 7, wobei die Kipparme im Wesentlichen identisch sind.
  9. Eine Anordnung nach einem vorgehenden Anspruch, wobei jeder Kipparm mit einem elastischen, Öffnungen aufweisenden Glied, ausgestattet ist, um über den zugehörigen Drehpunkt zu passen, um so den Kipparm an den Drehpunkt anzubringen.
  10. , Eine Anordnung nach Anspruch 9, wobei jedes Öffnungen aufweisende bzw. gelochte Glied ein elastisches Flächenelement bzw. Blech ist.
  11. Eine Anordnung nach einem vorhergehenden Anspruch, wobei jeder Kipparm ein Schwenkglied zum Eingriff mit einem Ventil besitzt.
  12. Eine Anordnung nach einem vorhergehenden Anspruch, wobei die Anordnung mindestens eine Nockenwelle daran angebracht besitzt.
  13. Eine Anordnung nach einem vorhergehenden Anspruch, wobei der Träger darinnen Kanäle ausgebildet aufweist, zum Transport von Öl zu den Drehpunkten.
  14. Eine Anordnung nach einem vorhergehenden Anspruch, wobei jeder Kipparm eine Rolle zum Eingriff mit einem Nocken mit einer Nockenwelle trägt, und wobei jede Rolle eine im Wesentlichen flache, zylindrische Außenoberfläche besitzt.
  15. Eine Anordnung nach einem vorhergehenden Anspruch, wobei der Träger Kipparme trägt, für Einlass- und Auslassventile für eine Vielzahl von Zylindem.
  16. Ein Verbrennungsmotor mit einer Ventiltriebanordnung nach einem der vorhergehenden Ansprüche, wobei der Motor eine Vielzahl von Zylindem aufweist, deren jeder Einlass- und Auslassventile besitzt, und wobei der Träger Kipparme für die Einlass- und Auslassventile trägt.
  17. Ein Verfahren zum Zusammenbau eines Verbrennungsmotors, wobei das Verfahren Folgendes vorsieht:
    (a) Vorsehen einer Ventiftriebanordnung, die gesondert von dem Verbrennungsmotor hergestellt und vor-zusammengebaut wurde, wobei der Schritt des Vorsehens Folgendes aufweist
    (i) Vorsehen eines Ventiltriebträgers mit einer Vielzahl von individuellen Kipparmdrehpunkten, deren jeder Teil einer Spieleinstellvorrichtung bildet; und
    (ii) Anbringen eines Kipparms an jedem Drehpunkt; und
    (b) Anbringen des Trägers mit daran angebrachtem Kipparm an einem Zylinderkopf des Verbrennungsmotors derart, dass der Kipparm in Funktionsbeziehung mit einem entsprechenden Motorventil gebracht wird.
  18. Ein Verfahren nach Anspruch 17, wobei das Verfahren den Schritt des Anbringens von mindestens einer Kurbelwelle am Träger aufweist, und zwar vor der Anbringung des Trägers an dem Zylinderkopf.
  19. Ein Verfahren nach Anspruch 17 oder 18, wobei jeder Kipparm an einem entsprechenden Drehpunkt durch ein gelochtes Flächenelement oder Blech angebracht ist, welches über dem Drehpunkt durch Schnapppassung angebracht ist.
  20. Ein Verfahren nach einem der Ansprüche 17 bis 19, wobei das Formen jedes Kipparms durch Deformation bzw. Verformung eines Flächenelements bzw. Blechs erfolgt.
  21. Ein Verfahren nach Anspruch 20, und zwar einschließend das Formen einer teilsphärischen Oberfläche an jedem Kipparm durch Deformation des erwähnten Flächenelements bzw. Blechs zum Zusammenpassen mit einem entsprechenden Teil eines Drehpunkts.
EP99970148A 1998-10-05 1999-10-05 Ventiltrieb Expired - Lifetime EP1119689B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI982136 1998-10-05
IT1998MI002136A IT1302601B1 (it) 1998-10-05 1998-10-05 Bilanciere dotato di elemento idraulico nel fulcro per un treno dicomando di valvole.
PCT/IB1999/001699 WO2000020730A1 (en) 1998-10-05 1999-10-05 Valve train assembly

Publications (3)

Publication Number Publication Date
EP1119689A1 EP1119689A1 (de) 2001-08-01
EP1119689B1 true EP1119689B1 (de) 2004-01-21
EP1119689B2 EP1119689B2 (de) 2010-04-07

Family

ID=11380809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99970148A Expired - Lifetime EP1119689B2 (de) 1998-10-05 1999-10-05 Ventiltrieb

Country Status (7)

Country Link
EP (1) EP1119689B2 (de)
JP (1) JP4558938B2 (de)
AT (1) ATE258271T1 (de)
BR (1) BR9914635A (de)
DE (1) DE69914348T3 (de)
IT (1) IT1302601B1 (de)
WO (1) WO2000020730A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007082622A1 (de) * 2006-01-21 2007-07-26 Schaeffler Kg Kipphebel aus stahlblech
DE102008022601A1 (de) 2008-05-07 2009-11-12 Schaeffler Kg Hebelartiger Nockenfolger
DE102010013942A1 (de) 2010-04-06 2011-10-06 Schaeffler Technologies Gmbh & Co. Kg Hebelartiger Nockenfolger
DE102011005851A1 (de) 2011-03-21 2012-09-27 Schaeffler Technologies Gmbh & Co. Kg Ventiltriebsystem für eine Brennkraftmaschine

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10041466B4 (de) * 2000-08-23 2008-10-09 Man Diesel Se Ventiltrieb für Gaswechselventile einer Brennkraftmaschine
FR2821891B1 (fr) * 2001-03-09 2003-05-23 Renault Culasse de moteur thermique comportant un element superieur, formant couvre-culasse, qui porte l'arbre a cames
ATE384857T1 (de) * 2003-07-23 2008-02-15 Eaton Srl Blechklammer für kipphebel
DE10340944A1 (de) * 2003-09-05 2005-04-28 Ina Schaeffler Kg Ventiltrieb
DE102004005831A1 (de) * 2004-02-06 2005-08-25 Ina-Schaeffler Kg Verbindungsvorrichtung für einen Betätigungshebel und ein Abstützelement einer Ventilsteuerung einer Brennkraftmaschine
JP4144625B2 (ja) * 2006-01-19 2008-09-03 トヨタ自動車株式会社 内燃機関のカムシャフト支持構造
JP4238874B2 (ja) * 2006-01-19 2009-03-18 トヨタ自動車株式会社 内燃機関のカムシャフト支持構造
DE102006031031A1 (de) 2006-07-05 2008-01-10 Schaeffler Kg Hebelartiger Nockenfolger eines Ventiltriebs einer Brennkraftmaschine
EP1881166A1 (de) * 2006-07-21 2008-01-23 Schaeffler KG Schaltbarer Ventiltrieb für eine Brennkraftmaschine
EP1881165A3 (de) * 2006-07-21 2009-12-16 Schaeffler KG Schaltbarer Ventiltrieb für eine Brennkraftmaschine
JP4611964B2 (ja) * 2006-12-05 2011-01-12 株式会社オティックス ロッカアーム組付モジュール
US8375909B2 (en) 2009-01-30 2013-02-19 Eaton Corporation Rocker arm retention
ES2373367T3 (es) * 2009-03-10 2012-02-02 Schaeffler Technologies Gmbh & Co. Kg Soporte de palanca basculante para un mecanismo de v�?lvula de un motor de combustión interna.
JP5345075B2 (ja) * 2010-01-08 2013-11-20 株式会社オティックス ロッカアームの製造方法
GB2501876A (en) 2012-05-08 2013-11-13 Eaton Srl Hydraulic lash adjuster
US9482120B2 (en) 2013-03-25 2016-11-01 GT Technologies Retention device for valve actuating mechanism
DE102014215129A1 (de) * 2014-08-01 2016-02-04 Schaeffler Technologies AG & Co. KG Hebel für die Ventilbetätigung einer Brennkraftmaschine
DE112016001685T5 (de) * 2015-05-07 2018-01-25 Eaton Corporation Ventiltriebbaugruppe
DE112016001680T5 (de) * 2015-05-07 2018-02-15 Eaton Corporation Ventiltriebbaugruppe mit Deaktivierung
US9863291B2 (en) 2015-05-14 2018-01-09 GT Technologies Locator for use in a valvetrain of a cylinder head of an internal combustion engine
ITUA20163586A1 (it) * 2016-04-29 2017-10-29 Gnutti Carlo Spa Apparato di azionamento delle valvole in motore endotermico
CN113047921B (zh) * 2016-05-10 2022-11-29 伊顿智能动力有限公司 模块化排气阀门摇臂组件及装配其的方法
US10934897B2 (en) * 2016-06-17 2021-03-02 Nittan Valve Co., Ltd. Mechanical lash adjuster
DE102022109243A1 (de) 2022-04-14 2023-10-19 Bayerische Motoren Werke Aktiengesellschaft Verbrennungskraftmaschine für ein Kraftfahrzeug sowie Kraftfahrzeug

Family Cites Families (7)

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US4913104A (en) * 1988-11-30 1990-04-03 Henley Manufacturing Corporation Rocker arm for operating two valves
JPH0397505U (de) * 1990-01-27 1991-10-08

Cited By (6)

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Publication number Priority date Publication date Assignee Title
WO2007082622A1 (de) * 2006-01-21 2007-07-26 Schaeffler Kg Kipphebel aus stahlblech
CN101360889B (zh) * 2006-01-21 2010-12-08 谢夫勒科技有限两合公司 由钢板制成的摇臂
US7918200B2 (en) 2006-01-21 2011-04-05 Schaeffler Kg Sheet steel rocker arm
DE102008022601A1 (de) 2008-05-07 2009-11-12 Schaeffler Kg Hebelartiger Nockenfolger
DE102010013942A1 (de) 2010-04-06 2011-10-06 Schaeffler Technologies Gmbh & Co. Kg Hebelartiger Nockenfolger
DE102011005851A1 (de) 2011-03-21 2012-09-27 Schaeffler Technologies Gmbh & Co. Kg Ventiltriebsystem für eine Brennkraftmaschine

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Publication number Publication date
BR9914635A (pt) 2001-07-03
EP1119689A1 (de) 2001-08-01
DE69914348T3 (de) 2011-02-03
EP1119689B2 (de) 2010-04-07
DE69914348T2 (de) 2004-11-04
IT1302601B1 (it) 2000-09-29
WO2000020730A1 (en) 2000-04-13
JP4558938B2 (ja) 2010-10-06
ITMI982136A1 (it) 2000-04-06
JP2002526707A (ja) 2002-08-20
ATE258271T1 (de) 2004-02-15
DE69914348D1 (de) 2004-02-26

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