EP0995885A2 - Culbuteur pour le contrôle simultané de la levée de soupape et de son calage dans un moteur à combustion interne - Google Patents

Culbuteur pour le contrôle simultané de la levée de soupape et de son calage dans un moteur à combustion interne Download PDF

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Publication number
EP0995885A2
EP0995885A2 EP99308287A EP99308287A EP0995885A2 EP 0995885 A2 EP0995885 A2 EP 0995885A2 EP 99308287 A EP99308287 A EP 99308287A EP 99308287 A EP99308287 A EP 99308287A EP 0995885 A2 EP0995885 A2 EP 0995885A2
Authority
EP
European Patent Office
Prior art keywords
cam
rocker arms
valve
rocker arm
condition
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.)
Granted
Application number
EP99308287A
Other languages
German (de)
English (en)
Other versions
EP0995885B1 (fr
EP0995885A3 (fr
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 Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of EP0995885A2 publication Critical patent/EP0995885A2/fr
Publication of EP0995885A3 publication Critical patent/EP0995885A3/fr
Application granted granted Critical
Publication of EP0995885B1 publication Critical patent/EP0995885B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L1/185Overhead end-pivot rocking arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20Adjusting or compensating clearance
    • F01L1/22Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405Adjusting 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015Modifications 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
    • F01L13/0036Modifications 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015Modifications 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
    • F01L13/0063Modifications 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L2001/186Split 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00Valve arrangements comprising rollers
    • F01L2305/02Mounting of rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00Details on specific features characterising valve gear arrangements
    • F01L2820/03Auxiliary actuators
    • F01L2820/033Hydraulic engines

Definitions

  • the present invention concerns a rocker arm device suitable for optimizing the functioning of internal combustion engines by controlling the opening and the timing of the cylinder valves according to the engine load and its speed.
  • the first element consists of a rocking body, acting as a third-order lever, hinged at one end to an hydraulic lash adjuster, while the other end controls, by a shoe, the valve stem.
  • the second element comprises a lever, at one end of which is pivoted a roller, which receives the thrust of the cam of the distributing shaft (camshaft), while the opposite end of the lever terminates in an eyelet and is hinged to a pin which can turn within a pivot seat fashioned in said eyelet.
  • the pin is torsionally linked to an eccentric support shaft, the rotation of the shaft being able to shift lengthwise the free end of the lever bearing the roller, so as to vary the position of incidence of the end of the lever itself by influencing the length of the arm of the body of the first element and, therefore, the valve lift and, in part, the timing of the latter.
  • a VRRS variable ratio rocker system
  • the purpose of the invention is to improve the performance of the known device, enabling a subsequent and independent variation of the timing, along with a regulation of the valve lift.
  • a pair of rocker arms is placed one within the other and is able to oscillate jointly or independently, and influence in a controllable manner the travel of the shoe associated with the engine poppet valve, thus controlling the valve lift.
  • the two rocker arms are linked together at one end by means of a common transverse pin, acting as a shoe on the head of the poppet valve, while at the other end the rocker arms are traversed by a compound pin controlled by an hydraulic or electrical actuator which can move transverse to the rocker arms, between two positions, enabling the coaxial and simultaneous oscillation of the two rocker arms in unison in one condition, or the independent oscillation of the rocker arms in the other condition.
  • the distributing shaft (camshaft) is provided with a cam arrangement, specifically, a central cam, acting on the inner rocker arm, which has less eccentricity than the eccentricity of a pair of identical cams, mounted at the sides of said central cam and acting on cheeks or lateral plates of the outer rocker arm to accomplish a larger valve opening and a longer advance.
  • a cam arrangement specifically, a central cam, acting on the inner rocker arm, which has less eccentricity than the eccentricity of a pair of identical cams, mounted at the sides of said central cam and acting on cheeks or lateral plates of the outer rocker arm to accomplish a larger valve opening and a longer advance.
  • the thrust of the central cam is transmitted to a needle roller, mounted at the end of an L-shaped lever, the fulcrum of which can be displaced lengthwise with respect to the axis of the rocker arms by means of an eccentric rotating pin.
  • the pin rotates relative to the end of an auxiliary arm which, at the other end, accommodates the seat for the axis of oscillation of the pair of rocker arms.
  • FIG. 1 illustrates a valve control system, made in accordance with the present invention, for use in controlling the engine poppet valves of an internal combustion engine.
  • the valve control system generally includes an inner rocker arm 2, an outer rocker arm 3, an L-shaped lever 4, and an auxiliary element 5.
  • the system further includes a fork element 7, a compound pin 8, an actuator 9, an elastic element 10, and a connector pin 37.
  • the inner rocker arm 3 (see FIG. 3) is formed by two parallel lateral walls 35, 35', joined together by a central bottom piece 34, an upper profile 36 of the walls 35, 35' being concave.
  • the inner rocker arm 3 has, at one of its ends, a seat (bore) 31 for the transverse connector pin 37, the pin 37 comprising the contact surface with the valve stem V.
  • a seat (bore) 31 for the transverse connector pin 37 the pin 37 comprising the contact surface with the valve stem V.
  • an opening 32 At the other end of the inner rocker arm 3 is an opening 32 to accommodate a bushing 33, defining a bore 38, within which the parts of the compound pin 8 can easily slide, the function of which shall be described afterwards.
  • the outer rocker arm 2 is formed by two cheeks or plates 2', 2" (see FIG. 2), the outside of each of which is placed against the lateral walls 35, 35' of the inner rocker arm 3 (see also FIG. 14A).
  • the plates 2', 2" have upper surfaces 26 which are convex, the two plates 2', 2" of the outer rocker arm 2 having at one of their ends a seat (bore) 21 for the connector pin 37 of the two rocker arms and, having at the other end, a seat (bore) 22 for the compound pin 8.
  • the L-shaped lever designated as 4 (see FIG. 4), has a cross-section of an inverted U, with two walls 40, 40' joined together by an upper plate 45 from which is made, such as by a punch operation, a bracket 46 and a seat 47 for purposes to be indicated.
  • the L-shaped lever 4 has, at the end of a longer branch 48, a seat (bore) 42 for an axle 43 of a roller (cam engagement member) R and, at the end of a shorter branch, a seat (bore) 41 for an oscillating pin 44.
  • the branch 48 has a lower cylindrical end 49 supported against the concave surfaces 36 of the inner rocker arm 3.
  • the auxiliary element 5 is mounted in alignment with the lengthwise center line of the inner rocker arm 3 (see FIG. 14A), and comprises at one end a circular hole 51 which supports a pin 52 (shown only in FIG. 1), the pin 52 being better understood by reference to the above-incorporated Italian application.
  • the pin 52 has an eccentric notch 54, within which is guided an oscillating pin 44 of the above-described L-shaped lever 4.
  • the auxiliary element 5 terminates at the opposite end with a semicircular seat 55, which is bounded by an outside shoulder 57, for holding the bushing 33 of the compound oscillating pin 8 of the two rocker arms.
  • the auxiliary element 5 has at the bottom, with respect to the seat 55, a support surface 56 against a tappet (hydraulic lash adjuster) P.
  • the semicircular seat 55 has a diameter equal to that of the bushing 33, so that the bushing 33 can be disposed in the bore 32 of the inner rocker arm 3;
  • the elastic element 10 (see FIGS. 5A, 5B), is formed by a single spring steel wire 11, having an essentially rectangular shape in plan view, with a width L' greater than the width L of the assembled rocker arms (FIG. 14A). As a result, the element 10 can be wedged on the outside of the cheeks 2', 2", being joined by its eyelets 15 to the bolts 25 (FIG. 9) which are secured to the cheeks 2' and 2", (see FIG. 2A).
  • the elastic element 10 has at one end a continuous segment 12, while at the opposite end it has two free branches 14, 14', bent inwardly to rest against the top of the connector pin 37 of the two rocker arms.
  • the elastic element 10 is elastically held in a state of tension by a U-clip 16 (see FIG. 6) with ends bent in hook shape 17, able to be connected to the segment 12 of the elastic element 10, the cross piece 18 of the clip 16 being capable of insertion in the seat 47 of the L-shaped lever 4.
  • the element 10 and the clip 16 are included for the purpose of maintaining the cheeks 2', 2" of the outer rocker arm 2 in contact with the pair of cams B (see FIG. 13).
  • the compound pin 8 (see FIG. 8), comprises three generally cylindrical parts 81, 82, 83, of which the shortest part 81 has a length equal to the transverse thickness of the plate 2" of the outer rocker arm 2 (see FIG, 14B).
  • the part 82 has a length equal to the width of the inner rocker arm 3 and of the bushing 33 (again see FIG. 14B), while the part 83 has a length around 50% greater than that of the shortest part 81.
  • the pin parts 81, 82, and 83 have a diameter slightly less than that of the seats 22 of the cheeks 2' and 2" and slightly less than the internal diameter of the bore 38 of the bushing 33, which can be mounted within the seat 32 of the inner rocker arm 3.
  • the connector pin 37 (see FIG. 10) is secured in the aligned openings 31 of the inner rocker arm 3 and in the openings 21 of the cheeks 2' and 2", which are placed against the walls 35 and 35' of the inner rocker arm 3.
  • the pin 37 connects the two rocker arms 2 and 3 for either a common action (“latched") or a separate action (“unlatched") of these arms on the engine poppet valve V.
  • the connector pin 37 is orientable within the aligned holes 31 and 21 so that a flattened middle part 38V always rests against the head of the poppet valve V.
  • the fork element 7 (see FIGS. 11 and 12) has two bent branches 71, 71' with an internal spacing 72 slightly greater than the total of the lengths of the three cylindrical parts 81, 82, 83 of the compound pin 8, one next to the other.
  • the branches 71, 71' form walls 71a and 71a' that approach each other and are joined together by means of a lower connection bridge 73, forming with them a U-shaped body 74, the branches 71a and 71a' having corresponding holes 75 for insertion of a shaft 92 of the actuator 9.
  • the actuator 9 (see FIG. 14A) is operated by an oil-dynamic (hydraulic) piston 91 or, alternatively, by electrical means, or any other suitable means, the particular design of the actuator 9 not comprising an essential feature of the invention.
  • the piston 9 has a shaft (output) 92 which is guided by the piston 91, the piston 91 being disposed within a cylinder 95 which may preferably be designed for the possibility of a fairly short translation (piston stroke).
  • the fork 7 is disposed on the shaft 92 in a position normally abutting against a locking washer 93, as a result of the force of a biasing spring 94 acting against the branch 71a' of the fork 7 and seated against the washer 96, which is fixed relative to the shaft 92.
  • FIG. 13 shows the positioning of the distributing shaft A and of the respective cams B and C with regard to the functioning of the device according to the invention.
  • the central cam C acts on the roller R arranged at the end of the L-shaped lever 4.
  • the impulse of the cam C is transmitted to the axle 43 of the roller and to the body of the lever 4, which rests by its cylindrical end 49 against the concave surfaces 36 of the inner rocker arm 3.
  • the cam C acts on the inner rocker arm 3 ("low lift"), while the outer rocker arm 2 comprising the cheeks 2', 2" is actuated by the outside cams B directly against the convex surfaces 26 of the cheeks themselves.
  • the cams B having a greater eccentricity, press against the outer rocker arm 2, connected to the inner rocker arm 3 by the connector pin 37, the cam C is thereby rendered ineffective.
  • FIGS. 14A and 14B illustrate the action of the actuator 9.
  • the fork 7, by means of the piston 91 is displaced along the direction of the arrow F1 and the branch 71' abuts against the cheek 2' of the outer rocker arm 2.
  • the part 83 of the pin 8, securing the cheek 2' enters the bushing 33, pushing the central part 82 of the pin 8 through it, along an axis A2, and the part 81 of same secures the cheek 2", so that both the rocker arms are joined ("latched").
  • the assemblage of the two rocker arms is thus controlled only by the outside cams B ("high lift") and the cam C is ineffective.
  • the piston 91 is retracted, along its axis A3 (see FIG. 14A) as in FIG. 14B, pulling the fork 7 in the direction of arrow F2, and therefore only the inner rocker arm 3 operates, because the two cheeks 2', 2" of the outer rocker arm 2 are idle on the compound pin 8.
  • the inner rocker arm 3 is unlatched and can oscillate about the bushing 33, which is always supported by the semicircular seat 55 of the auxiliary element 5, the tip 57 of whose outside shoulder is shown in FIG. 14A.
  • the valve control system illustrated and described herein provides both dual lift capability, in response to the rocker arms being either latched (FIG. 14A) or unlatched (FIG. 14B), and also VRRS capability, in response to rotation of the eccentric pin 52. More specifically, and as merely one example of the use of the present invention, whenever the system is operating in the low lift mode of FIG. 14B, the pin 52 is initially in the position shown in FIG. 1. The described position of the pin 52 corresponds to a minimum speed condition, in which the roller R is disposed at the far left end of its travel in FIG. 1, which represents the minimum lift of the poppet valve V. As the engine speed gradually increases, the pin 52 rotates clockwise from the position shown in FIG.
  • the present invention is illustrated in the drawings as comprising a series of parts which, in some cases, could probably be combined with each other, or formed integrally with the cylinder head, or in some other manner redesigned to reduce the total number of parts.
  • the objective of showing the version of the present invention being shown herein is partly to illustrate the various functions which should preferably be performed by various parts of the entire valve control assembly, and those skilled in the art will understand that the invention is not limited to the particular parts being separate as shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP99308287A 1998-10-20 1999-10-20 Culbuteur pour le contrôle simultané de la levée de soupape et de son calage dans un moteur à combustion interne Expired - Lifetime EP0995885B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998MI002244A IT1302701B1 (it) 1998-10-20 1998-10-20 Dispositivo a bilanciere per il controllo contemporaneo dell'alzatadelle valvole e della relativa fasatura in un motore a scoppio.
ITMI982244 1998-10-20

Publications (3)

Publication Number Publication Date
EP0995885A2 true EP0995885A2 (fr) 2000-04-26
EP0995885A3 EP0995885A3 (fr) 2000-07-19
EP0995885B1 EP0995885B1 (fr) 2005-01-12

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ID=11380897

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EP99308287A Expired - Lifetime EP0995885B1 (fr) 1998-10-20 1999-10-20 Culbuteur pour le contrôle simultané de la levée de soupape et de son calage dans un moteur à combustion interne

Country Status (5)

Country Link
EP (1) EP0995885B1 (fr)
JP (1) JP4541471B2 (fr)
BR (1) BR9906075A (fr)
DE (1) DE69923139T2 (fr)
IT (1) IT1302701B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10060890A1 (de) * 2000-12-07 2002-07-18 Meta Motoren Energietech Vorrichtung zum Umschalten des Betriebs eines Ladungswechselventils einer Brennkraftmaschine
EP1533486A1 (fr) * 2002-07-05 2005-05-25 Honda Giken Kogyo Kabushiki Kaisha Dispositif d'actionnement de soupape pour moteur a combustion interne
EP1923546A1 (fr) * 2005-09-08 2008-05-21 HONDA MOTOR CO., Ltd. Dispositif de commande de soupape pour moteur
WO2009098047A1 (fr) * 2008-02-07 2009-08-13 Meta Motoren -Und Energie-Technik Gmbh Ensemble levier de soupape avec un mécanisme d’actionnement de soupape commutable
WO2017134062A1 (fr) * 2016-02-01 2017-08-10 Eaton Srl Système à rapport de culbuteur variable pour un bras de culbuteur commutable
WO2019008184A1 (fr) * 2017-07-07 2019-01-10 Eaton Intelligent Power Limited Actionneur
CN110023594A (zh) * 2017-01-31 2019-07-16 舍弗勒技术股份两合公司 活塞式内燃机的可变气门机构
CN112585337A (zh) * 2018-08-09 2021-03-30 伊顿智能动力有限公司 具有两级闩锁销的停闭摇臂
US11566544B2 (en) 2018-08-09 2023-01-31 Eaton Intelligent Power Limited Rocker arm assembly with lost motion spring

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210463A1 (de) * 2016-06-14 2017-12-14 Thyssenkrupp Ag Ventilsteuervorrichtung für eine Brennkraftmaschine
DE102018131601A1 (de) * 2018-12-10 2019-10-31 Schaeffler Technologies AG & Co. KG Schaltbarer Schlepphebel für einen Ventiltrieb einer Brennkraftmaschine und Variabler Ventiltrieb für eine Brennkraftmaschine
CN116163818B (zh) * 2023-04-24 2023-06-27 泰州市姜堰伟达机械有限公司 一种内燃机的摇臂装置

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US4768475A (en) * 1986-02-28 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve mechanism for an automotive engine
US4768467A (en) * 1986-01-23 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve operating system for an automotive engine
DE4136143A1 (de) * 1991-11-02 1993-05-06 Audi Ag, 8070 Ingolstadt, De Ventilsteuereinrichtung fuer eine brennkraftmaschine
DE4220816A1 (de) * 1992-06-25 1994-01-05 Schaeffler Waelzlager Kg Variable Ventilsteuerung mittels Änderung der Hebelverhältnisse bei Kipp- oder Schlepphebeln von Ventiltrieben
US5655488A (en) * 1996-07-22 1997-08-12 Eaton Corporation Dual event valve control system

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JPS60228717A (ja) * 1984-04-27 1985-11-14 Suzuki Motor Co Ltd 4サイクルエンジンのバルブリフト可変装置
JPS62170711A (ja) * 1986-01-23 1987-07-27 Fuji Heavy Ind Ltd 自動車用エンジンの動弁装置
JPS62170714A (ja) * 1986-01-23 1987-07-27 Fuji Heavy Ind Ltd 自動車用エンジンの動弁装置
IT1240107B (it) * 1990-02-16 1993-11-27 Ferrari Spa Sistema di distribuzione variabile, in particolare per un motore endotermico.
JPH0626313A (ja) * 1992-06-02 1994-02-01 Yoshiteru Ono 可変バルブタイミング機構

Patent Citations (5)

* 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
US4768475A (en) * 1986-02-28 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve mechanism for an automotive engine
DE4136143A1 (de) * 1991-11-02 1993-05-06 Audi Ag, 8070 Ingolstadt, De Ventilsteuereinrichtung fuer eine brennkraftmaschine
DE4220816A1 (de) * 1992-06-25 1994-01-05 Schaeffler Waelzlager Kg Variable Ventilsteuerung mittels Änderung der Hebelverhältnisse bei Kipp- oder Schlepphebeln von Ventiltrieben
US5655488A (en) * 1996-07-22 1997-08-12 Eaton Corporation Dual event valve control system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10060890C2 (de) * 2000-12-07 2003-04-03 Meta Motoren Energietech Vorrichtung zum Umschalten des Betriebs eines Ladungswechselventils einer Brennkraftmaschine
US6752107B2 (en) 2000-12-07 2004-06-22 Meta Motoren-Und Energie-Technik Gmbh Apparatus for switching the operation of a change valve of a combustion engine
DE10060890A1 (de) * 2000-12-07 2002-07-18 Meta Motoren Energietech Vorrichtung zum Umschalten des Betriebs eines Ladungswechselventils einer Brennkraftmaschine
US7431000B2 (en) 2002-07-05 2008-10-07 Honda Giken Kogyo Kabushiki Kaisha Valve-actuating for internal combustion engine
EP1533486A1 (fr) * 2002-07-05 2005-05-25 Honda Giken Kogyo Kabushiki Kaisha Dispositif d'actionnement de soupape pour moteur a combustion interne
EP1533486A4 (fr) * 2002-07-05 2007-03-14 Honda Motor Co Ltd Dispositif d'actionnement de soupape pour moteur a combustion interne
EP1923546A4 (fr) * 2005-09-08 2009-12-30 Honda Motor Co Ltd Dispositif de commande de soupape pour moteur
EP1923546A1 (fr) * 2005-09-08 2008-05-21 HONDA MOTOR CO., Ltd. Dispositif de commande de soupape pour moteur
US7779797B2 (en) 2005-09-08 2010-08-24 Honda Motor Co., Ltd. Engine valve operating system
WO2009098047A1 (fr) * 2008-02-07 2009-08-13 Meta Motoren -Und Energie-Technik Gmbh Ensemble levier de soupape avec un mécanisme d’actionnement de soupape commutable
US8033260B2 (en) 2008-02-07 2011-10-11 Meta Motoren- Und Energie- Technik Gmbh Valve lever assembly having a switchable valve actuating mechanism
WO2017134062A1 (fr) * 2016-02-01 2017-08-10 Eaton Srl Système à rapport de culbuteur variable pour un bras de culbuteur commutable
CN110023594A (zh) * 2017-01-31 2019-07-16 舍弗勒技术股份两合公司 活塞式内燃机的可变气门机构
CN110023594B (zh) * 2017-01-31 2021-05-14 舍弗勒技术股份两合公司 活塞式内燃机的可变气门机构
WO2019008184A1 (fr) * 2017-07-07 2019-01-10 Eaton Intelligent Power Limited Actionneur
CN112585337A (zh) * 2018-08-09 2021-03-30 伊顿智能动力有限公司 具有两级闩锁销的停闭摇臂
US11566544B2 (en) 2018-08-09 2023-01-31 Eaton Intelligent Power Limited Rocker arm assembly with lost motion spring

Also Published As

Publication number Publication date
EP0995885B1 (fr) 2005-01-12
DE69923139D1 (de) 2005-02-17
JP4541471B2 (ja) 2010-09-08
JP2000130132A (ja) 2000-05-09
ITMI982244A0 (it) 1998-10-20
DE69923139T2 (de) 2005-12-29
IT1302701B1 (it) 2000-09-29
ITMI982244A1 (it) 2000-04-20
EP0995885A3 (fr) 2000-07-19
BR9906075A (pt) 2000-09-05

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