WO2005075797A1 - Galet suiveur levier schlepphebel destine a une inversion de course - Google Patents

Galet suiveur levier schlepphebel destine a une inversion de course Download PDF

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Publication number
WO2005075797A1
WO2005075797A1 PCT/EP2005/000511 EP2005000511W WO2005075797A1 WO 2005075797 A1 WO2005075797 A1 WO 2005075797A1 EP 2005000511 W EP2005000511 W EP 2005000511W WO 2005075797 A1 WO2005075797 A1 WO 2005075797A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
drag lever
partial
drag
tap
Prior art date
Application number
PCT/EP2005/000511
Other languages
German (de)
English (en)
Inventor
Markus Duesmann
Joachim Hahn
Original Assignee
Fev Motorentechnik 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 Fev Motorentechnik Gmbh filed Critical Fev Motorentechnik Gmbh
Publication of WO2005075797A1 publication Critical patent/WO2005075797A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • 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
    • F01L1/20—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
    • 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
    • F01L13/0015—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
    • F01L13/0063—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 cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F01L2001/467—Lost motion springs
    • 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 switchable drag lever for a valve train, in particular a piston internal combustion engine.
  • a valve train is shown, in which a drag lever is used, which is in contact with a camshaft and a gas exchange valve.
  • the drag lever has an adjusting cylinder arranged on the inside, whereby the drag lever, divided into two parts coupled to each other, can be blocked so that both parts are rigid to each other. In this way, two different strokes can be achieved in the actuated gas exchange valve.
  • a deactivatable, mechanically actuated gas exchange valve is known in which a camshaft actuates a roller rocker arm.
  • the roller rocker arm has two part levers, which are connected via a standing in contact with a cam of the camshaft. By means of a locking of the two partial levers, it is possible to activate or deactivate this roller toggle lever for stroke switching.
  • Object of the present invention is to provide a roller cam follower available, which allows Hubumscaria with high rigidity of the finger lever.
  • the claimed switchable drag lever for a valve train in particular a piston internal combustion engine, has at least two tap faces for a cam contour, which are arranged movably relative to each other by means of an adjusting mechanism for changing a relative position of the tap faces.
  • the arrangement of at least two tap faces makes it possible for the drag lever as such to have a main body with a first tap face and, for example, a partial lever movable with respect to the main body with a second tap face.
  • the stiffness of the finger lever is preferably secured over the body substantially.
  • the partial lever is pivotable relative to the base body.
  • a valve to be actuated
  • the cam contour runs along the first tap area of the main body.
  • the cam contour runs along the second tap area on the partial lever. In the second operating state, therefore, the power flow takes place from the cam contour via the partial lever in the main body to the valve.
  • a Hubumscnies Due to the switchable mobility of both components (base body, partial lever) to each other, a Hubumscnies can now be achieved that the relative position of the Abgriffs vom is fixed to one another, for example, preferably in the second operating state, and the other time is variable, for example, preferably in the first operating state. Due to the variable relative position can be effected that different areas of the cam contour of a camshaft are now engaged with the cam follower.
  • the shift lever is in engagement with a camshaft having a cam contour.
  • the cam contour has a common base circle at least in a first and in a second area.
  • the outstanding from the base circle cam geometries differ in both areas from each other.
  • the drag lever has a partial lever with a base body, which are pivotally connected to each other via a hinge connection.
  • the partial lever has at least a first tap area for the first area of the cam contour.
  • the main body has at least a second tap area for the second area of the cam contour.
  • the base body has two tap surfaces.
  • the partial lever can assume at least two different positions with respect to the base body upon contact of the cam contour with the first and second tap faces.
  • the partial lever is arranged in the base body.
  • the main body preferably surrounds the partial lever laterally.
  • a pivoting movement of the partial lever for a Hubumscnies runs in a direction which points in an interior of the body.
  • the partial lever provides a movement space for Hubumscnies available, which is protected.
  • the base body can be made stiffening stable, since it is, for example, frame-like executable.
  • the hinge connection is additionally used as a stiffening for pivotal connection of the partial lever to the base body.
  • a joint connection for connecting at least both Abgriffs vom valve side is arranged and the joint Connection opposite valve facing a support of the cam follower is arranged.
  • the articulated connection can specifically serve as stiffening in this area.
  • the support of the drag lever is preferably carried out via a hydraulic compensation game element, with which a valve clearance compensation is made possible.
  • a hydraulic compensation game element is described, for example, in DE 190 38 917 A1, to which reference is made in full in this respect and is included in the context of this disclosure.
  • the support is provided via a screw connection, wherein a lock nut is provided for valve clearance compensation.
  • the screw is attached to one end in a cylinder head.
  • the support is supported directly on or in the cylinder head.
  • the rocker arm has a receptacle with a concave shape in at least one section, wherein the receptacle receives a support of the rocker arm.
  • the recording can enable a spherical support.
  • the receptacle is spherical at least in one section.
  • the drag lever has a convex-shaped portion for transmitting power between a valve and the drag lever.
  • the convex-shaped portion may have a radius constant at least in one region.
  • the portion is formed in the main body, that in addition to an actual sliding surface for the transmission of power to the valve a lateral guidance is provided for example by one or more webs.
  • the valve in turn, has, for example, on one end of a valve rod, a counter-geometry matching the convex-shaped section. This can for example be a rounding.
  • the convex-shaped portion is arranged on the valve side and adjacent to the articulated connection in the main body of the finger lever.
  • the section for force transmission is spherically shaped.
  • the section can create a point, line or large-area contact for power transmission between the valve and the finger follower.
  • it has proved to be advantageous in terms of acting on the drag lever forces and torques when a hinge connection for connecting at least both Abgriffs vom a bearing body which is arranged in a receptacle which is formed by a partial lever and / or a body of the towing lever.
  • the bearing body is a separate component.
  • the bearing body is connected cohesively or non-positively with the base body.
  • the bearing body can also be connected to the partial lever in a material-locking or force-locking manner.
  • the hinge connection is spherical. It can also be provided that, in order to avoid friction, a coating is provided in the region of the body of the articulated connection which is deflected onto one another.
  • a Reibmindernden layer has, for example, PTFE.
  • the basic body has a material fit for the articulated connection has a spherical shape, on which the partial lever with a corresponding recess, in particular a dome-shaped recess, is placed.
  • the part lever can move in this way along the spherical shape, whereby a cumbersome connection of part lever and body is avoided via a different type of hinge connection.
  • this hinge connection allows a supply of lubricant, in particular oil, by supplying the same into a region of the spherical joint connection. In a pivoting movement of the partial lever, this lubricant is then distributed along the spherical shape.
  • a ball, a barrel or a needle is provided as a bearing for the hinge joint as a separate component.
  • the hinge connection between the main body and the partial lever is made in a clip-like manner. By clipping a part of the partial lever in a corresponding counter-shape of the base body, the hinge connection is made in this way.
  • a region of the partial lever engaging in the base body can be arched, rounded, edged or also shaped like a mixture. It is also possible that a part of the body engages the formation of the joint in the partial lever, in particular is clipped to it.
  • the articulated connection is provided via an axle or shaft.
  • an axle geometry be formed on the partial lever, which is inserted into the body.
  • axle stubs are provided on the base body, engage in the corresponding recesses of the partial lever.
  • the shaft of the articulated connection generates a rotation-like restoring force when moving from the rest position.
  • a torsion spring can be used.
  • a force can be impressed by supporting a rod spring in the main body on the part lever.
  • Another embodiment for impressing a restoring force on the partial lever provides, for example, that a "lost-motion" spring is provided, which is supported on the one hand on the partial lever and on the other hand on the cylinder head.
  • this spring extends for example through a bottom portion of the body towards the drag lever.
  • the adjusting mechanism which allows a change in a relative position of the tap faces to each other, designed such that a stepwise relative change in position of the tap surfaces is enabled to each other.
  • the adjusting mechanism has, for example, a longitudinal body which has a change in cross section for the relative change in position of both tap faces by engaging at least one extension of a tap area into the change in cross section. In this way it is possible that a continuous adjustment is possible.
  • the adjusting mechanism has a coupling element, wherein the coupling element is arranged in the base body. The coupling element is able to release or block a pivoting movement of the partial lever in the main body.
  • the coupling element in the form of an elongate body, which is axially movable.
  • the coupling element is displaced axially by a pressurization.
  • a lock can be moved so far in a corresponding axial change in position of the coupling element that it is no longer effective against the partial lever.
  • the cam contour of the sub-lever then pivoted against the force, for example, the "Lost-motion" spring in the body. If the coupling element is no longer pressurized, this is returned, for example, via a return spring or other restoring force in its initial position, whereby the lock is activated again.
  • the partial lever is then blocked in its pivoting movement by the coupling element.
  • a shift of the coupling element is controlled such that the partial lever can return back to its original position due to the effect of the "Lost Motion” spring before after the cam of the cam contour had pushed the partial lever into the body. Due to the Restoring force follows the partial lever of the cam contour. If the base circle is reached, the coupling element can again move into a blocking position.
  • An embodiment of such a coupling element is for example known from DE 190 38 917 A1. There, a coupling element is used in each case for locking. In the context of the description, reference is made in this regard to this document and included in the scope of the disclosure.
  • the structure as described above allows the finger follower to act as if it were integral when the diverter lever is locked in pivotal motion into the body.
  • the switchable cam follower additionally cooperates with a phaser.
  • the camshaft has a mechanical, hydraulic and / or different phase adjustment.
  • the drag lever is designed in particular as a three-point controller.
  • the drag lever for example, on three tap surfaces, which in particular in each case against each other are movable, preferably pivotable and lockable.
  • a preferred embodiment provides that a piston internal combustion engine has a plurality of switchable drag lever integrated in a valve train and assigned to different gas exchange valves, wherein the valve train is mounted on a cylinder head.
  • the drag levers each have a partial lever connected to a base body via a hinge connection, wherein partial lever and base body engage and are pivotable into one another.
  • Each of the partial levers has at least a first tapping surface for a cam contour, and each of the base bodies has at least one second tapping surface for a cam contour.
  • Each of the partial levers can be brought to the respective associated basic body by a cam in at least two different positions by traversing the first or second exhaust fins.
  • Each rocker arm has a joint connection for connecting both tap surfaces of a finger lever valve-side arranged, wherein the hinge connection facing away from the valve has a support of the respective finger lever, in particular with respect to the cylinder head.
  • the respective support is a hydraulic compensation game element, which is supported on an end facing away from the drag lever in the cylinder head.
  • the drag lever consists at least substantially only of the partial lever and the main body. This allows in particular that different manufacturing processes for the main body as well as for the partial lever can be used.
  • the partial lever is a formed sheet metal part.
  • the base body is a precision casting component.
  • the base body as well as the partial lever of a metallic material.
  • the base body may comprise a different metal than the partial lever.
  • the partial lever and / or the base body are at least partially hollow or have cavities.
  • One or more stiffeners can be arranged in the cavities. These may be strut-shaped and / or formed as material thickening. In this way, the weight as well as a moment of inertia of the finger lever and / or the partial lever can be reduced.
  • the camshaft acting in conjunction with the drag lever may have at least two, preferably three adjacent regions of a cam contour.
  • a central region is provided with a longer cam than the two outer cams.
  • the three cams of the cam contour have the same base circle from which the cams extend radially.
  • the two outer cams extend radially longer than the centrally arranged cams.
  • different base circle radii are used in adjacent areas. This can be combined with differently borrowed radially extending cam.
  • a method for operating a valve train with a drag lever is provided.
  • a restoring force is exerted on the cam follower for relative change in the position of the tap faces by means of a permanently acting spring force, a fixation of an end or intermediate positioning of the tap faces relative to one another being effected by means of a controlled change in position of a coupling element which provides different positions as a support for a tap face provides.
  • the Hubumscnies is used at low load for a stronger Entdrosselung to increase the efficiency of the internal combustion engine.
  • the Hubumscnies different concepts can be implemented, for example, power concepts with a large lifting function at high speeds for a long opening.
  • a low stroke can be controlled to get a short E- vent.
  • FIG. 1 shows a sectional view of an internal combustion engine
  • FIG. 3 shows a sectional view of the first drag lever
  • FIG. 4 shows a plan view of a second drag lever
  • FIG. 5 shows a sectional view of the second drag lever
  • Figure 6 is a plan view of a third drag lever
  • FIG. 7 shows a plan view of a fourth drag lever.
  • FIG. 1 shows a sectional view of an internal combustion engine 1 with a cylinder head 2.
  • a gas exchange valve 3 is supported by a spring 4 on the cylinder head and on a counter holder 5 from.
  • a first drag lever 6 is supported with a base body 7 and a partial lever 8.
  • the partial lever 8 is braced on a "lost-motion" spring 9. As a result, the partial lever 8 is pressed against a camshaft 10.
  • the partial lever 8 is arranged within the base body 7 and pivotally connected thereto via a hinged connection 11.
  • a coupling element 12 which is axially displaceable via an oil supply via an oil feed 13 of a hydraulic Ausmaschinespieiele- 14 can be fed oil pressure, a movement of the partial lever 8 opposite to the force effect of the "lost motion" spring 9 can be blocked.
  • the hydraulic compensation game element 14 engages in a receptacle which allows a spherical support.
  • the camshaft 10 has a base circle 16 and a first cam 17 in a first area and a second cam 18 in a second area adjacent thereto.
  • the first cam 17 extends further radially than the second cam 18.
  • the first cam 17 can be on a support first tapping surface 19, which has the part lever 8 when the part lever is blocked. If the partial lever 8 is not blocked, the camshaft 10 is supported on a second tapping surface 20, which has the main body 7.
  • the coupling element can be provided with contours, which allows a multi-stage movement of partial lever to main body.
  • FIG. 2 shows a plan view of the first drag lever from FIG. 1.
  • the first drag lever has a second 20 and a third 21 pick-off surface, between which the first pick-off surface of the part lever is arranged.
  • the partial lever and the main body are connected to each other via a shaft 22.
  • FIG. 3 shows a sectional view of the first drag lever in an enlargement. It has a convex shaped portion 23 for power transmission, unwinding and sliding of the valve. In the main body 8 is a curved recess 24 for supporting the drag lever.
  • FIG. 4 shows a plan view of a second drag lever. This has a ball joint for connecting the partial lever with the main body.
  • Figure 5 shows a sectional view of the second drag lever, wherein a cohesive connection of a spherical bearing body is integrated into the body.
  • the partial lever is supported, with a pivot bearing is formed by this spherical cap and the spherical approach.
  • a ball between the partial lever and the base body can be inserted for storage.
  • Figure 6 shows a plan view of a third cam follower with a Abgriffsrolle 25.
  • the large cam lift is realized by the Abgriffsrolle, which is located inside.
  • the Abgriffsrolle can also be a Gleitabgriff possible.
  • Figure 7 shows a plan view of a fourth cam follower also with Rollenabgriff.
  • a large cam lift is made possible by the outer Abgriff perennial.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

La présente invention concerne un galet suiveur commutable destiné à un mécanisme de commande de soupape, notamment d'un moteur à combustion interne à piston. Le galet suiveur a au moins deux surfaces de prélèvement (14, 20) destinées à un contour de came et mobiles l'une par rapport l'autre, ce qui permet la modification de la position relative de ces surfaces de prélèvement (14, 20) à l'aide d'un mécanisme de réglage.
PCT/EP2005/000511 2004-02-04 2005-01-20 Galet suiveur levier schlepphebel destine a une inversion de course WO2005075797A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004005594A DE102004005594A1 (de) 2004-02-04 2004-02-04 Schlepphebel zur Hubumschaltung
DE102004005594.7 2004-02-04

Publications (1)

Publication Number Publication Date
WO2005075797A1 true WO2005075797A1 (fr) 2005-08-18

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PCT/EP2005/000511 WO2005075797A1 (fr) 2004-02-04 2005-01-20 Galet suiveur levier schlepphebel destine a une inversion de course

Country Status (2)

Country Link
DE (1) DE102004005594A1 (fr)
WO (1) WO2005075797A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007035673A3 (fr) * 2005-09-16 2007-05-24 Timken Us Corp Ensemble a doigt de poussee de commutation
US7546822B2 (en) 2004-03-03 2009-06-16 Timken Us Corporation Switching finger follower assembly
WO2009003840A3 (fr) * 2007-07-05 2010-02-25 Schaeffler Kg Culbuteur pour une commande de soupape d'un moteur à combustion interne
EP2662540A1 (fr) * 2012-05-11 2013-11-13 Otics Corporation Mécanisme de soupape variable

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005048984A1 (de) 2005-10-13 2007-04-19 Schaeffler Kg Schaltbarer Schlepphebel
DE102006027805A1 (de) * 2006-06-16 2007-12-20 Schaeffler Kg Ventiltrieb einer Brennkraftmaschine mit wenigstens einem schaltbaren Schlepphebel
DE102006029178A1 (de) * 2006-06-24 2007-12-27 Bayerische Motoren Werke Ag Schlepphebel
DE102017113481A1 (de) * 2017-06-20 2018-12-20 Schaeffler Technologies AG & Co. KG Abschaltbarer Schlepphebel für einen Ventiltrieb einer Brennkraftmaschine
US11566544B2 (en) 2018-08-09 2023-01-31 Eaton Intelligent Power Limited Rocker arm assembly with lost motion spring
US11319840B2 (en) 2018-08-09 2022-05-03 Eaton Intelligent Power Limited Deactivating rocker arm having two-stage latch pin

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617880A (en) 1984-12-25 1986-10-21 Toyota Jidosha Kabushiki Kaisha Valve actuating apparatus for optionally resting the operation of a valve in internal combustion engine
DE3615449A1 (de) * 1986-05-07 1987-11-12 Erich Schmid Vorrichtung fuer eine nockengesteuerte hubkolbenmaschine
JPH0849515A (ja) * 1992-06-22 1996-02-20 Takashi Hikita 可変バルブタイミング機構
US6340010B1 (en) * 1999-07-08 2002-01-22 Unisia Jecs Corporation Valve operating device for internal combustion engine with variable valve timing and valve-lift characteristic mechanism
DE10038917A1 (de) 2000-08-09 2002-02-21 Fev Motorentech Gmbh Kolbenbrennkraftmaschine mit deaktivierbaren, mechanisch betätigbaren Gaswechselventilen
DE10155800A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
US20030111031A1 (en) * 2001-12-17 2003-06-19 Hendricksma Nick J. Variable valve actuation assembly for an internal combustion engine
US20030209217A1 (en) * 2002-05-08 2003-11-13 Hendriksma Nick J. Two-step finger follower rocker arm assembly

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768467A (en) * 1986-01-23 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve operating system for an automotive engine
DE3800347A1 (de) * 1987-01-08 1988-09-29 Honda Motor Co Ltd Ventilbetaetigungsvorrichtung in einer brennkraftmaschine
DE3831642A1 (de) * 1988-09-17 1990-03-29 Daimler Benz Ag Ventiltrieb fuer ein hubventil in einer brennkraftmaschine
JP2701595B2 (ja) * 1991-07-01 1998-01-21 日産自動車株式会社 内燃機関の可変動弁装置
DE4205230A1 (de) * 1992-02-21 1993-08-26 Audi Ag Ventilbetaetigungsmechanismus fuer eine brennkraftmaschine
US5445116A (en) * 1992-12-22 1995-08-29 Unisia Jecs Corporation Hydraulic variable lift engine valve gear
DE19515367A1 (de) * 1995-05-02 1996-11-07 Iav Motor Gmbh Schaltbarer Ventiltrieb mit Schwenkhebel für Verbrennungsmotoren
US5655488A (en) * 1996-07-22 1997-08-12 Eaton Corporation Dual event valve control system
JPH10103035A (ja) * 1996-09-24 1998-04-21 Toyota Motor Corp 内燃機関のオイル供給装置
DE19816773A1 (de) * 1998-04-16 1999-10-21 Schaeffler Waelzlager Ohg Ventilsteuereinrichtung für eine Brennkraftmaschine
DE10060890C2 (de) * 2000-12-07 2003-04-03 Meta Motoren Energietech Vorrichtung zum Umschalten des Betriebs eines Ladungswechselventils einer Brennkraftmaschine
DE10155825A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
DE10155828A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
DE10155801A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
DE10155827A1 (de) * 2001-11-14 2003-05-15 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
US6769387B2 (en) * 2002-10-19 2004-08-03 General Motors Corporation Compact two-step rocker arm assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617880A (en) 1984-12-25 1986-10-21 Toyota Jidosha Kabushiki Kaisha Valve actuating apparatus for optionally resting the operation of a valve in internal combustion engine
DE3615449A1 (de) * 1986-05-07 1987-11-12 Erich Schmid Vorrichtung fuer eine nockengesteuerte hubkolbenmaschine
JPH0849515A (ja) * 1992-06-22 1996-02-20 Takashi Hikita 可変バルブタイミング機構
US6340010B1 (en) * 1999-07-08 2002-01-22 Unisia Jecs Corporation Valve operating device for internal combustion engine with variable valve timing and valve-lift characteristic mechanism
DE10038917A1 (de) 2000-08-09 2002-02-21 Fev Motorentech Gmbh Kolbenbrennkraftmaschine mit deaktivierbaren, mechanisch betätigbaren Gaswechselventilen
DE10155800A1 (de) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
US20030111031A1 (en) * 2001-12-17 2003-06-19 Hendricksma Nick J. Variable valve actuation assembly for an internal combustion engine
US20030209217A1 (en) * 2002-05-08 2003-11-13 Hendriksma Nick J. Two-step finger follower rocker arm assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7546822B2 (en) 2004-03-03 2009-06-16 Timken Us Corporation Switching finger follower assembly
WO2007035673A3 (fr) * 2005-09-16 2007-05-24 Timken Us Corp Ensemble a doigt de poussee de commutation
WO2009003840A3 (fr) * 2007-07-05 2010-02-25 Schaeffler Kg Culbuteur pour une commande de soupape d'un moteur à combustion interne
EP2662540A1 (fr) * 2012-05-11 2013-11-13 Otics Corporation Mécanisme de soupape variable
US8893675B2 (en) 2012-05-11 2014-11-25 Otics Corporation Variable valve mechanism

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