EP2050933A1 - Système de fonctionnement de soupape comportant un suiveur de contact à rouleau à deux étapes - Google Patents

Système de fonctionnement de soupape comportant un suiveur de contact à rouleau à deux étapes Download PDF

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Publication number
EP2050933A1
EP2050933A1 EP07118713A EP07118713A EP2050933A1 EP 2050933 A1 EP2050933 A1 EP 2050933A1 EP 07118713 A EP07118713 A EP 07118713A EP 07118713 A EP07118713 A EP 07118713A EP 2050933 A1 EP2050933 A1 EP 2050933A1
Authority
EP
European Patent Office
Prior art keywords
lock pin
actuator
operating system
valve operating
arm
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Withdrawn
Application number
EP07118713A
Other languages
German (de)
English (en)
Inventor
Axel H. Berndorfer
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP07118713A priority Critical patent/EP2050933A1/fr
Publication of EP2050933A1 publication Critical patent/EP2050933A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/3443—Solenoid driven oil control 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets

Definitions

  • the present invention generally relates to a valve operating system, especially for use in internal combustion engines where valves are operated with a camshaft.
  • the present invention relates to a valve operating system, especially for use in internal combustion engines wherein valves are operated with a camshaft, comprising a rocker arm assembly and a locking system
  • the rocker arm assembly comprises a primary arm actuation pivotably mounted around a main pivot axis for actuating a valve and a secondary arm pivotably mounted relative to the primary arm around an auxiliary pivot axis located on the primary arm extremity opposite to the main pivot axis, the secondary arm carrying a cam follower element
  • the locking system comprises a lock pin movable between a lock position, wherein it ties the primary arm motion with the secondary arm motion, and an unlock position, wherein it frees the secondary arm motion relative to the primary arm motion in order to allow the secondary arm to swivel relative to the primary arm.
  • a valve operating system with two step roller finger follower typically comprises a locking system hydraulically operated with oil circulating inside the primary rocker arm pivot device through a hole connected with the cylindrical hole of the lock pin.
  • the lock pin is operated in the lock or the unlock position by controlling the oil pressure.
  • This hydraulic actuation has several drawbacks. It is difficult to switch individual followers on a multiple cylinder combustion engine which causes invalid switch events and which prevents from using the system for all types of combustion strategies.
  • the operation limits of the valve operating system are determined by the engine oil pressure which is not always the same and which requires oversize of the oil pump, leading to parasitic losses.
  • the present invention provides a valve operating system as previously described, characterized in that an outside portion of the lock pin extends at least partly outside the primary arm, in that the locking system comprises an electromechanical actuator cooperating with the outside portion of the lock pin in order to control the axial position of the lock pin, and in that the actuator comprises compensating means allowing lock pin control whatever the angular position of the primary arm is.
  • the present invention provides also an internal combustion engine comprising a valve operating system according to the preceding features.
  • Figure 1 shows a portion of an internal combustion engine 10 equipped with a valve operating system 14 according to a first embodiment of the invention.
  • the combustion engine 10 comprises an engine block 12 on which is rotated a camshaft 16 in order to control a valve train 18. As a simplified representation, only one valve 19 is shown on the figures.
  • valve operating system 14 As can be seen on FIG 1 , the camshaft 16 controls the valve train 18 through a valve operating system 14.
  • the valve operating system 14 is represented in details on FIG 2 , 3 , 4 and 5 . It comprises a rocker arm assembly 21, pivotably mounted relative to the engine block 12, and a locking system 30 the function of which will be described later.
  • the rocker arm assembly 21 comprises a primary arm 22 which extends mainly along a longitudinal direction Ox and which is pivoted on its right end, regarding figure 3 , around a main pivot axis Oy.
  • the main pivot axis Oy is constituted by an articulation 27 of the ball-and-socket joint type.
  • This articulation 27 is constituted of a semi-spherical hollow 29, machined in the pivoted end of the primary arm 22, and of an oil distributor 31 comprising a semi-spherical convex head.
  • Such an articulation type is already disclosed, for example in US 2006/0144356 [ ⁇ 0055].
  • the primary arm 22 At its left end (as per FIG 3 ), the primary arm 22 comprises an actuation surface 25 which is in contact with the end 33 of the valve stem 23.
  • the primary arm 22 swivels around its main pivot axis Oy between a rest position, which is shown on figure 3 , and an actuation position, which is shown on figure 4 .
  • the primary arm 22 is hollow in its central portion in order to house a secondary arm 24 which extends generally along the longitudinal direction of the primary arm 22.
  • the secondary arm 24 is pivotably mounted by its left end, as per FIG 3 , relative to the primary arm 22, around an auxiliary pivot axis 28 parallel to the transversal axis Oy and located in the left end of the primary arm 22.
  • roller cam follower 26 which freely rotates around its transversal axis and which is maintained in permanent contact with an associated cam 37 carried by the camshaft 16.
  • a return spring assembly 35 is arranged between the primary arm 22 and the secondary arm 24 in order to maintain the roller cam follower 26 in contact with the cam 37.
  • the secondary arm 24 can swivel around its auxiliary pivot axis 28 between an operating position, which is shown on figures 3 and 4 , and a non operating position, which is shown on figure 5 , upon operation of the camshaft 16, depending on the state of the lock system 30 as it will be seen more clearly later on.
  • the lock system 30 comprises a cylindrical lock pin 32, a compression spring 42, and an actuator 44, for example an electro-mechanical actuator.
  • the lock pin 32 is slidably mounted, along a sliding axis a1, in a generally longitudinal guiding-hole 40 machined in the right end, as per FIG 3 , of the primary arm 22.
  • the guiding-hole 40 is opened inside the hollow portion of the primary arm 22 so that the inside extremity 41 of the lock pin 32 may be received in a locking slot 39 arranged in the right end of the secondary arm 24, as it is shown on figure 3 .
  • the outside extremity 43 of the lock pin 32 extends outside the guiding-hole 40, towards the right as shown on figure 3 .
  • the lock pin 32 has an inside lock position, wherein it is received in the locking slot 39 and an outside unlock position wherein the lock pin end 41 is not engaged in the locking slot 39.
  • the lock pin 32 has two portions 45, 47 of distinct diameters connected via a shoulder 46.
  • the guiding-hole 40 has a shoulder surface 49, facing the shoulder 46 so that a spring 42 could be compressed between them biasing the lock pin 32 toward the actuator 44, i.e. toward the right considering figure 3 .
  • the spring 42 could be arranged reversely such that the lock pin 32 would be biased toward the hollow portion of the primary arm 22, i.e. toward the left considering figure 3 . Then the default position of the lock pin 32 would be reversed.
  • the outside extremity 43 of the lock pin 32 has a semi-spherical convex surface generally centred on a point situated on the lock pin axis a1.
  • the actuator 44 comprises a body 51 fixed relative to the engine block 14 and a plunger 53, in the shape of a rod, axially movable along an actuating axis a2.
  • the plunger 53 has on its free end a concave spherical surface 55 of larger radius compared to the convex surface of the outside extremity 43 of the lock pin 32.
  • the concave surface 55 is such that, when the primary arm 22 is oscillating during operation of the primary arm 22, the tip point of the lock pin convex surface 43 draws, in the plane O-x-z, an arc of circle centred on the main pivot axis Oy.
  • the concave surface 55 is of a similar radius as this arc of circle.
  • the concave surface 55 is arranged on a cap 56 fixed on the free end of the plunger 53.
  • the radius of the concave surface 55 is generally centred on the main pivot axis Oy. The aim of this particular arrangement is to allow the lock pin 32 to remain in contact with the concave surface 55 and to remain constantly operable by the actuator 44.
  • the concave surface 55 could be of cylindrical shape instead of spherical shape.
  • An advantage of such an embodiment would be to allow controlling of several adjacent lock pins 32 with one single actuator 44 in order to activate/deactivate simultaneously several valves 19.
  • the actuator 44 is designed to control the plunger 53 along the actuating axis a2 between an unlock position, which is represented on figure 5 , wherein the plunger 53 is stepped back toward the outside, and a lock position, which is represented on figure 4 , wherein the plunger 53 is stepped forward toward the inside of the primary arm 22.
  • the lock pin 32 is pushed outside against the concave surface 55 so that, whatever the actuating position of the plunger 53 is, the lock pin 32 remains in contact with the concave surface 55.
  • the concave surface 55 together with the compression spring 42 allow compensation of the different angular positions of the lock pin 32 which depends on the swivelling motion of the primary arm 22.
  • the actuator 44 is connected to an electronic control unit 57 which controls the actuator 44 depending on engine parameters or any other relevant parameter.
  • valve operating system 14 according to the invention works will be explained in details.
  • the primary arm 22 is in its rest position and the actuator 44 is controlled in its lock position so that the lock pin 32 is in its lock position wherein its inside extremity 41 is received in the locking slot 39 of the secondary arm 24 to tie the secondary arm motion with the primary arm motion.
  • Swivelling of the primary arm 22 drives the lock pin 32 around the main pivot axis so that the outside portion 43 of the lock pin 32 moves along an arcuate path, considering figure 3 and 4 .
  • the lock pin 32 remains in permanent contact with the concave surface 55 the shape of which following the motion of the lock pin 32.
  • the lock pin 32 remains in a controllable position.
  • the control unit 57 controls the actuator 44 so that the plunger 53 moves from its lock to its unlock position, driving the lock pin 32 to its unlock position.
  • This unlock position makes the secondary arm 24 free relative to the primary arm 22.
  • the cam 37 pushes the cam follower 26, the secondary arm 24 swivels around the auxiliary pivot axis 28, without transferring motion to the primary arm 22.
  • the valve 19 stays in its closed state.
  • the actuator 44 is an electro-mechanical actuator wherein the axial position of the plunger 53 is controlled by an electromagnetic coil and wherein the plunger 53 comprises two steady positions (lock and unlock positions) in order to prevent the necessity to power on the actuator 44 to maintain the plunger 53, and by the way the lock pin 32, in one of its extreme axial positions.
  • the actuator body 51 contains a coil 58 which is powered through a connector device 60.
  • the coil 58 comprises an armature 62 having two opposite radial surfaces 64, 66 and forming, between the two radial surfaces 64, 66, a guiding pipe 70 through which the plunger 53 is slidably mounted.
  • the plunger 53 carries two permanent magnet plates 72, 74 which are mounted on each side of the coil 58 and which will be called locking plate 72 and unlocking plate 74.
  • Each permanent magnet plate 72, 74 is magnetically orientated along the actuating axis a2 in opposite directions so that, depending on the polarity of the supply current for the coil 58, either the locking plate 72 or the unlocking plate 74 is magnetically attracted towards the coil 58 against the corresponding radial surface 64, 66 of the armature 62.
  • the distance D between the two permanent magnet plates 72, 74 is bigger than the longitudinal dimension of the armature 62 so that only one plate 72, 74 could be in contact with the armature 62.
  • a current of reverse polarity is supplied to the coil 58 when the actuator 44 is controlled in its unlock position, as can be seen on figure 5 .
  • the plunger 53 can be maintained magnetically in each one of its lock and unlock positions without requiring electric power. Supply current is required only for transition state between the lock and unlock positions.
  • the actuator 44 comprises two coils 76, 78 and only one permanent magnet plate 80 arranged between the two coils 76, 78.
  • the permanent magnet plate 80 is attracted towards one of the two coils 76, 78 which corresponds either to the lock or the unlock position of the plunger 53.
  • valve operating system 14 A second embodiment of the valve operating system 14 according to the present invention will be described now, referring to figure 8 and focusing on the main differences with the first embodiment.
  • the actuator 44 is an electromagnetic contactless actuator in which the heart plunger 53 is constituted by the outside portion 47 of the lock pin 32.
  • the coil 82 of the actuator 44 provides an electromagnetic field which controls the displacement of the heart plunger 53 along the actuation axis a1.
  • the diameter of the coil 82 is such that, when the lock pin 32 swivels with the primary arm 22, there is no direct contact between the coil 82 and the lock pin outside portion 47.
  • the coil 82 compensates the swivelling of the lock pin 32 during primary arm motion.
  • the coil 82 could be of oval section in the direction of the swivelling motion in order to allow a larger swivelling motion of the locking pin 32 while making the actuator 44 more compact in width along a transversal direction.
  • the outside portion 47 of the lock pin 32 is long enough so that the coil 82 provides enough electromagnetic force to control the lock pin 32.
  • the outside portion 47 of the lock pin 32 is tubular in order to minimize the weight in motion without penalizing the actuating power of the actuator 44.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP07118713A 2007-10-17 2007-10-17 Système de fonctionnement de soupape comportant un suiveur de contact à rouleau à deux étapes Withdrawn EP2050933A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07118713A EP2050933A1 (fr) 2007-10-17 2007-10-17 Système de fonctionnement de soupape comportant un suiveur de contact à rouleau à deux étapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07118713A EP2050933A1 (fr) 2007-10-17 2007-10-17 Système de fonctionnement de soupape comportant un suiveur de contact à rouleau à deux étapes

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EP2050933A1 true EP2050933A1 (fr) 2009-04-22

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472075A1 (fr) * 2009-08-24 2012-07-04 Yamaha Hatsudoki Kabushiki Kaisha Dispositif de soupape variable, moteur comportant ce dispositif et véhicule à selle
FR2983369A1 (fr) * 2011-11-28 2013-05-31 Valeo Sys Controle Moteur Sas Dispositif de commande d'au moins un actionneur electromagnetique configure pour agir sur la transmission du mouvement d'au moins une came a au moins une soupape
FR2990465A1 (fr) * 2012-05-14 2013-11-15 Valeo Sys Controle Moteur Sas Ensemble de levee multiple de soupape
FR2990482A1 (fr) * 2012-05-14 2013-11-15 Valeo Sys Controle Moteur Sas Dispositif de verrouillage pour un systeme de transmission du mouvement d'au moins une came a au moins une soupape
CN103470324A (zh) * 2013-09-29 2013-12-25 长城汽车股份有限公司 发动机断缸机构
FR2995935A1 (fr) * 2012-09-25 2014-03-28 Valeo Sys Controle Moteur Sas Ensemble de transmission du mouvement d'au moins une came
CN105298572A (zh) * 2015-10-09 2016-02-03 绵阳富临精工机械股份有限公司 一种用于发动机的两级可变摇臂
WO2016028812A1 (fr) * 2014-08-18 2016-02-25 Eaton Corporation Train de soupapes présentant un verrou actionné magnétiquement de boîtier de culbuteur
WO2016197088A1 (fr) * 2015-06-04 2016-12-08 Eaton Corporation Rampe de culbuteurs à verrouillage électrique ayant une fonctionnalité de diagnostic embarqué (obd) intégrée
US20170241300A1 (en) * 2014-08-18 2017-08-24 Eaton Corporation Valvetrain with rocker arm housing magnetically actuated latch
DE102016208472A1 (de) 2016-05-18 2017-11-23 Schaeffler Technologies AG & Co. KG Anordnung zur elektromechanischen Betätigung zumindest eines schaltbaren Schlepphebels für einen Ventiltrieb einer Brennkraftmaschine
WO2018075341A1 (fr) * 2016-10-17 2018-04-26 Eaton Corporation Bascule de cda à verrou électrique simplifié
WO2018075392A1 (fr) * 2016-10-17 2018-04-26 Eaton Corporation Cadre auxiliaire pour culbuteurs à verrouillage électrique
WO2017156125A3 (fr) * 2016-03-11 2018-08-30 Eaton Corporation Couplage inductif à des ensembles culbuteurs
WO2018162094A1 (fr) * 2017-03-09 2018-09-13 Eaton S.R.L Culbuteur commutable
DE102017204877A1 (de) 2017-03-23 2018-09-27 Bayerische Motoren Werke Aktiengesellschaft Ventiltrieb für einen Verbrennungsmotor sowie Zylinderkopf
DE102017106689A1 (de) 2017-03-29 2018-10-04 Schaeffler Technologies AG & Co. KG Variabler Ventiltrieb eines Verbrennungskolbenmotors
US10358951B2 (en) 2015-08-18 2019-07-23 Eaton Intelligent Power Limited Sliding contact for electrically actuated rocker arm
DE102018101868A1 (de) * 2018-01-29 2019-08-01 Schaeffler Technologies AG & Co. KG Schaltbarer Schlepphebel
EP3536916A1 (fr) 2018-03-07 2019-09-11 OTICS Corporation Mécanisme pour soupape à commande variable pour moteur à combustion interne
US10487763B2 (en) 2018-04-26 2019-11-26 Ford Global Technologies, Llc Method and system for variable displacement engine diagnostics
CN110541738A (zh) * 2019-09-24 2019-12-06 奇瑞汽车股份有限公司 摇臂机构
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
US10753303B2 (en) 2018-04-26 2020-08-25 Ford Global Technologies, Llc Method and system for variable displacement engine diagnostics
US10801418B2 (en) 2018-04-26 2020-10-13 Ford Global Technologies, Llc Method and system for variable displacement engine diagnostics
US11002156B2 (en) 2015-08-18 2021-05-11 Eaton Intelligent Power Limited Non-contacting actuator for rocker arm assembly latches
US11008968B2 (en) 2018-04-26 2021-05-18 Ford Global Technologies, Llc Method and system for variable displacement engine diagnostics

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US5529033A (en) * 1995-05-26 1996-06-25 Eaton Corporation Multiple rocker arm valve control system
US6318318B1 (en) * 2001-05-15 2001-11-20 Ford Global Technologies, Inc. Rocker arm assembly
DE10310220A1 (de) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Vorrichtung zur Koppelung bzw. Entkoppelung zweier Betätigungshebel eines Ventiltriebes einer Brennkraftmaschine und Verfahren hierzu
DE102005006056A1 (de) * 2005-02-10 2006-08-24 Daimlerchrysler Ag Vorrichtung zur Koppelung bzw. Entkoppelung zweier Betätigungselemente eines Ventiltriebes einer Brennkraftmaschine und Verfahren hierzu
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Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472075A1 (fr) * 2009-08-24 2012-07-04 Yamaha Hatsudoki Kabushiki Kaisha Dispositif de soupape variable, moteur comportant ce dispositif et véhicule à selle
EP2472075A4 (fr) * 2009-08-24 2013-04-10 Yamaha Motor Co Ltd Dispositif de soupape variable, moteur comportant ce dispositif et véhicule à selle
FR2983369A1 (fr) * 2011-11-28 2013-05-31 Valeo Sys Controle Moteur Sas Dispositif de commande d'au moins un actionneur electromagnetique configure pour agir sur la transmission du mouvement d'au moins une came a au moins une soupape
FR2990465A1 (fr) * 2012-05-14 2013-11-15 Valeo Sys Controle Moteur Sas Ensemble de levee multiple de soupape
FR2990482A1 (fr) * 2012-05-14 2013-11-15 Valeo Sys Controle Moteur Sas Dispositif de verrouillage pour un systeme de transmission du mouvement d'au moins une came a au moins une soupape
WO2013171392A1 (fr) * 2012-05-14 2013-11-21 Valeo Systemes De Controle Moteur Module de levée multiple de soupape et système d'actionnement comportant ce module
FR2995935A1 (fr) * 2012-09-25 2014-03-28 Valeo Sys Controle Moteur Sas Ensemble de transmission du mouvement d'au moins une came
CN103470324B (zh) * 2013-09-29 2016-05-04 长城汽车股份有限公司 发动机断缸机构
CN103470324A (zh) * 2013-09-29 2013-12-25 长城汽车股份有限公司 发动机断缸机构
EP3183438A4 (fr) * 2014-08-18 2018-09-05 Eaton Corporation Actionneur sans contact pour verrous d'ensemble culbuteur
WO2016028812A1 (fr) * 2014-08-18 2016-02-25 Eaton Corporation Train de soupapes présentant un verrou actionné magnétiquement de boîtier de culbuteur
WO2016028824A1 (fr) * 2014-08-18 2016-02-25 Eaton Corporation Actionneur sans contact pour verrous d'ensemble culbuteur
CN106661974A (zh) * 2014-08-18 2017-05-10 伊顿公司 用于摇臂组件闩锁的非接触致动器
US20170241300A1 (en) * 2014-08-18 2017-08-24 Eaton Corporation Valvetrain with rocker arm housing magnetically actuated latch
JP2017525886A (ja) * 2014-08-18 2017-09-07 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ 磁気作動ラッチを格納するロッカーアーム付バルブトレイン
CN106661974B (zh) * 2014-08-18 2019-09-03 伊顿智能动力有限公司 用于摇臂组件闩锁的非接触致动器
US10180089B2 (en) * 2014-08-18 2019-01-15 Eaton Intelligent Power Limited Valvetrain with rocker arm housing magnetically actuated latch
EP3183437A4 (fr) * 2014-08-18 2018-09-05 Eaton Corporation Train de soupapes présentant un verrou actionné magnétiquement de boîtier de culbuteur
US10731517B2 (en) 2015-03-30 2020-08-04 Eaton Intelligent Power Limited Valvetrain with rocker arm housing magnetic latch
EP3303782A4 (fr) * 2015-06-04 2019-01-23 Eaton Corporation Rampe de culbuteurs à verrouillage électrique ayant une fonctionnalité de diagnostic embarqué (obd) intégrée
CN113565596A (zh) * 2015-06-04 2021-10-29 伊顿公司 具有内置obd功能的电气闩锁摇杆臂组件
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