Betätigungseinrichtung für ein electromagnetisches Ventil

ELECTROMAGNETIC ACTUATOR FOR A VALVE OF AN INTERNAL COMBUSTION ENGINE

L'invention concerne un actionneur électromagnétique pour soupape de moteur qui comprend : -Une armature incluant : Des moyens pour générer un champ magnétique empilés avec une première pièce ferromagnétique (23a, 23b) comprenant un alésage traversant, Un noyau (24, 26) cylindrique logé dans l'alésage et délimitant avec l'alésage un entrefer (25, 27), -Un équipage (20, 21) mobile incluant une carcasse (33, 33') munie d'un corps (36, 36') tubulaire, un bobinage (34, 35 ; 34', 35') enroulé sur le corps (36, 36') tubulaire et adapté pour entrainer l'équipage mobile lorsqu'il est traversé par un courant électrique (Im1, Im2), Le corps tubulaire (36, 36') étant disposé dans l'entrefer (25, 27), caractérisé en ce que les moyens pour générer un champ magnétique sont constitués par un bobinage annulaire (22) comprenant un évidement central, cet évidement central coopérant avec l'alésage pour délimiter l'entrefer (25, 27). The invention relates to an electromagnetic actuator for a motor valve which comprises: - A frame including: means for generating a magnetic field stacked with a first ferromagnetic part (23a, 23b) comprising a through bore, a cylindrical core (24, 26) housed in the bore and delimiting with the bore a gap (25, 27), - A movable crew (20, 21) including a carcass (33, 33 ') provided with a tubular body (36, 36'), a coil (34, 35; 34 ', 35') wound on the tubular body (36, 36 ') and adapted to drive the moving part when it is crossed by an electric current (Im1, Im2), The tubular body (36, 36 ') being arranged in the air gap (25, 27), characterized in that the means for generating a magnetic field consist of an annular coil (22) comprising a central recess, this central recess cooperating with the bore to delimit the air gap (25, 27).

ELECTROMAGNETIC ACTUATOR FOR A VALVE OF AN INTERNAL COMBUSTION ENGINE

L'invention concerne un actionneur électromagnétique pour soupape de moteur qui comprend : -Une armature incluant : Des moyens pour générer un champ magnétique empilés avec une première pièce ferromagnétique (23a, 23b) comprenant un alésage traversant, Un noyau (24, 26) cylindrique logé dans l'alésage et délimitant avec l'alésage un entrefer (25, 27), -Un équipage (20, 21) mobile incluant une carcasse (33, 33') munie d'un corps (36, 36') tubulaire, un bobinage (34, 35 ; 34', 35') enroulé sur le corps (36, 36') tubulaire et adapté pour entrainer l'équipage mobile lorsqu'il est traversé par un courant électrique (Im1, Im2), Le corps tubulaire (36, 36') étant disposé dans l'entrefer (25, 27), caractérisé en ce que les moyens pour générer un champ magnétique sont constitués par un bobinage annulaire (22) comprenant un évidement central, cet évidement central coopérant avec l'alésage pour délimiter l'entrefer (25, 27). The invention relates to an electromagnetic actuator for an engine valve which comprises: - an armature including: means for generating a magnetic field stacked with a first ferromagnetic part (23a, 23b) comprising a through bore, a cylindrical core (24, 26) housed in the bore and delimiting with the bore a gap (25, 27), -a crew (20, 21) movable including a carcass (33, 33 ') provided with a body (36, 36') tubular, a winding (34, 35; 34 ', 35') wound on the tubular body (36, 36 ') and adapted to drive the moving equipment when an electric current passes through it (Im1, Im2), The tubular body (36, 36 ') being disposed in the air gap (25, 27), characterized in that the means for generating a magnetic field are constituted by an annular winding (22) comprising a central recess, this central recess cooperating with the bore to delimit the gap (25, 27).

Betätigungseinrichtung für ein electromagnetisches Ventil

Electromagnetic linear actuator for activating gas valve in valve operating device of internal combustion engine, has coils that are concentrically arranged around plunger when coils are energized and are axially arranged to each other

The linear actuator has a fixed unit and a linearly movable unit. One of the fixed units is secured to two housing portions (5). The housing portions are adapted to respectively receive the first and second coils (1,2). The movable unit is provided with a plunger (3) secured to the second coil. The coils are concentrically arranged around the plunger, when the coils are energized. The second coil is arranged axially to the first coil. A spring (10) is adapted to generate a return force with the energized coils. An independent claim is included for gas valve operating device.

Linearer Aktuator und Ventilbetätigungsvorrichtung

Elektromagnetischer, linearer Aktuator zur Aktivierung eines Gaswechselventils, wobei der Aktuator aus einem fest stehenden Teil (5, 1) und einem linear beweglichen Teil (2, 3) gebildet ist und der fest stehende Teil (5, 1) zumindest ein Gehäuse (5, 25) und eine in dem Gehäuse (5, 25) befestigte, erste Spule (1) aufweist und der bewegliche Teil (2, 3) zumindest einen Stößel (3) und eine auf dem Stößel (3) befestigte zweite Spule (2) aufweist, wobei beide Spulen (1, 2) konzentrisch um den Stößel (3) angeordnet sind und sich bei Bestromung die zweite Spule (2) axial an die erste Spule (1) annähert und/oder sich zumindest teilweise in diese hineinbewegt und wobei am Stößel (3) ein Bewegungsdämpfer (6) angebracht ist, der zur Interaktion mit einem bewegungsbegrenzenden Element (23) vorgesehen ist.

Verfahren und Einrichtung zum Steuern eines elektrischen Ventileinstellgeräts

Electric valve drive device in an internal combustion engine

A poppet valve is provided to open and close a valve seat in an internal combustion engine. At the end of a valve stem of the valve, a cylindrical support is fixed, and on the outer circumferential surface of the support, a moving coil is wound. There is formed an annular cavity in a yoke fixed to a bracket fixed on a cylinder head, and a permanent magnet is fixed in the annular cavity of the yoke. Between the permanent magnet and the yoke in the annular cavity, the support which has the moving coil is inserted. By a control system having CPU, an electric current is applied to the moving coil, thereby providing optimum valve timing and lift to decrease seating noise and improving engine performance.

Electromagnetic valve actuating system

An apparatus for driving valve by electromagnetic force, for an engine capable of being installed in a narrower space due to the interfering object or narrow arrangement pitch of a supply/exhaust valve, comprises: a fixed magnetic pole which is wound with the primary coils and which is opposingly disposed embracing the secondary coils in the perpendicular direction to the reciprocating direction of the secondary coils; an air gap adjacent with a tip end of the fixed magnetic pole and provided in the middle of a magnetic flux path generated from the primary coil; a movable element adapted to be made of magnetic substance, to move freely reciprocating in the air gap, to form part of the magnetic flux path, and to contain the secondary coils.

Verfahren und Einrichtung zum Steuern eines elektrischen Ventileinstellgeräts

Internal combustion engine with electronic valve actuators and control system therefor

A valve assembly for an internal combustion engine includes a stationary permanent magnet assembly having at least one permanent magnet for generating a permanent magnetic field and a movable coil assembly having at least one coil of electrically conductive material for generating a magnetic field when an electrical current is applied to the at least one coil to thereby move the coil assembly with respect to the permanent magnet assembly. A valve is connected to the coil assembly for movement therewith. The valve assembly also includes a housing with an internal cavity and spaced ports extending from the cavity to circulate liquid through the cavity and cool the valve assembly during operation.

Method of controlling an electric valve drive device and a control system therefor

A poppet valve which has a valve stem is moved up and down to open and close a valve port in an internal combustion engine of a vehicle such as an automobile. A moving coil is wound on a bobbin mounted to the valve stem, and a magnet is mounted to a yoke fixed to a cylinder head. A plurality of sensors detect working conditions of the engine to send a signal to a working condition discriminating portion of CPU. The signal is further sent to a valve timing lift pattern memory in which optimum valve timing and lift are set corresponding to the working conditions to generate an optimum valve position signal. In the meantime, an actual position of the valve is detected by a sensor on the yoke to send an actual valve position signal to a valve position detector. In a comparator, the actual valve position signal from the valve position detector is compared with the optimum valve position signal from the valve timing lift pattern memory to apply to an electric current to the moving coil to move ...

Internal Combustion Engine with Electronic Valve Actuators and Control System Therefor

A valve assembly for an internal combustion engine includes a stationary permanent magnet assembly having at least one permanent magnet for generating a permanent magnetic field and a movable coil assembly having at least one coil of electrically conductive material for generating a magnetic field when an electrical current is applied to the at least one coil to thereby move the coil assembly with respect to the permanent magnet assembly. A valve is connected to the coil assembly for movement therewith. The valve assembly also includes a housing with an internal cavity and spaced ports extending from the cavity to circulate liquid through the cavity and cool the valve assembly during operation.

Linear actuator for valve control and operating systems and methods

Linear actuators are disclosed. The linear actuator comprises a thruster and a stator. The thruster includes a thruster winding, and the stator includes a stator winding. The stator is disposed about the thruster. The linear actuator also includes a sheath disposed about the stator and the thruster. The thruster is configured to translate within the sheath relative to the stator upon application of an electrical current to the stator winding, the thruster winding, or a combination thereof. The stator winding and the thruster winding each comprise a nonpermanent magnet.

LINEAR ACTUATOR FOR VALVE CONTROL AND OPERATING SYSTEMS AND METHODS

Linear actuators are disclosed. The linear actuator comprises a thruster and a stator. The thruster includes a thruster winding, and the stator includes a stator winding. The stator is disposed about the thruster. The linear actuator also includes a sheath disposed about the stator and the thruster. The thruster is configured to translate within the sheath relative to the stator upon application of an electrical current to the stator winding, the thruster winding, or a combination thereof. The stator winding and the thruster winding each comprise a nonpermanent magnet.

Electromagnetic valve control system

A magnetic plate is disposed in confronting relation to the shank end of an auxiliary exhaust valve which is opened to discharge exhaust gases from a combustion chamber. The magnetic plate is attracted by an electromagnet into abutment against the shank end of the auxiliary exhaust valve, and forces the auxiliary exhaust valve in an opening direction. When the auxiliary exhaust valve is opened, the exhaust gases are discharged from the combustion chamber, and the pressure in the combustion chamber is quickly lowered. Forces required to open a main exhaust valve subsequently may thus be reduced.

Electromagnetic valve drive

SYSTEM FOR ACTUATING AN INTERNAL COMBUSTION ENGINE VALVE

ELECTROMAGNETIC ACTUATOR FOR INTERNAL COMBUSTION ENGINE VALVE

Actionneur (17) électromagnétique pour soupape (9) de moteur à combustion interne, qui comprend : - une armature (19) définissant un circuit magnétique incluant : ○ un aimant (22) et ○ une pièce (23a, 23b) polaire externe délimitant un alésage (29) primaire ; - un équipage (20) mobile primaire incluant une soupape (9), l'actionneur (17) électromagnétique comprenant, en outre : - un alésage (30) secondaire voisin de l'alésage (29) primaire ; - un équipage (21) mobile secondaire incluant une soupape (9). An electromagnetic actuator (17) for an internal combustion engine valve (9), which comprises: - an armature (19) defining a magnetic circuit including: ○ a magnet (22) and ○ an outer pole piece (23a, 23b) delimiting a bore (29) primary; a primary mobile unit (20) including a valve (9), the electromagnetic actuator (17) further comprising: a secondary bore (30) close to the primary bore (29); - A secondary mobile unit (21) including a valve (9).

SYSTEM FOR ACTUATING AN INTERNAL COMBUSTION ENGINE VALVE

Système (18) d'actionnement d'une soupape (9, 10) de moteur (2) à combustion interne, ce système (18) comprenant un actionneur (19) électromagnétique et un dispositif (20) de commande pilotant l'actionneur (19), cet actionneur (19) comprenant : - un aimant générant un champ magnétique ; - une bobine plongée dans le champ magnétique raccordée électriquement au dispositif (20) de commande ; le dispositif (20) de commande pouvant fonctionner selon deux configurations : - une configuration active dans laquelle le dispositif (20) alimente électriquement la bobine pour procurer une accélération à la soupape (9, 10) ; - une configuration passive dans laquelle le dispositif (20) n'alimente pas électriquement la bobine pour procurer une décélération à la soupape (9, 10), et recueille une énergie électrique induite par la bobine ; la bobine étant solidaire de la soupape (9, 10) et l'aimant étant fixe par rapport à la culasse (13). A system (18) for operating an internal combustion engine valve (9, 10), said system (18) comprising an electromagnetic actuator (19) and a control device (20) controlling the actuator ( 19), said actuator (19) comprising: a magnet generating a magnetic field; a coil immersed in the magnetic field electrically connected to the control device (20); the control device (20) operable in two configurations: - an active configuration in which the device (20) electrically supplies the coil to provide acceleration to the valve (9, 10); - a passive configuration in which the device (20) does not electrically feed the coil to provide deceleration to the valve (9, 10), and collects electrical energy induced by the coil; the coil being integral with the valve (9, 10) and the magnet being fixed relative to the cylinder head (13).

ASSEMBLY COMPRISING ELECTROMAGNETIC ACTUATOR AND ACTING MEMBER

System for electromagnetic actuation of valves for an internal combustion engine

The invention relates to a system (18) for actuating valves (9, 10) for an internal combustion engine (2) including a first valve and a second valve (9, 10) actuated by a first electromagnetic actuator and a second electromagnetic actuator (19), respectively, each electromagnetic actuator (19) including a magnet (22) generating a magnetic field and a coil (23) supplied with electricity and immersed in said field, the electric power supply of each coil (23) making it possible to manage, alternately, acceleration and deceleration phases of each valve (9, 10), said system (18) including a control device (20) configured such as to transmit induced electric energy generated by the coil of the first (19) electromagnetic actuator towards the coil (23) of the second electromagnetic actuator (19) during a deceleration phase of the first valve (9, 10) and an acceleration phase of the second valve (9, 10), such as to use said electric energy for the acceleration phase of the second valve (9, 10).

Electromagnetic valve drive

Electromagnetic valve actuating system

System for electromagnetic actuation of valves for an internal combustion engine

The invention relates to a system (18) for actuating valves (9, 10) for an internal combustion engine (2) including a first valve and a second valve (9, 10) actuated by a first electromagnetic actuator and a second electromagnetic actuator (19), respectively, each electromagnetic actuator (19) including a magnet (22) generating a magnetic field and a coil (23) supplied with electricity and immersed in said field, the electric power supply of each coil (23) making it possible to manage, alternately, acceleration and deceleration phases of each valve (9, 10), said system (18) including a control device (20) configured such as to transmit induced electric energy generated by the coil of the first (19) electromagnetic actuator towards the coil (23) of the second electromagnetic actuator (19) during a deceleration phase of the first valve (9, 10) and an acceleration phase of the second valve (9, 10), such as to use said electric energy for the acceleration phase of the second valve (9, 10).

Valve drive device

Electromagnetic force valve drive control device

ASSEMBLY COMPRISING ELECTROMAGNETIC ACTUATOR AND ACTING MEMBER

L'invention concerne un ensemble comprenant un actionneur électromagnétique et un élément à actionner, l'actionneur comprenant : -un équipage mobile comportant un corps tubulaire (34) fermé à une extrémité par une paroi (36), -la paroi (36) comprend un alésage (37) qui le traverse, -ledit équipage mobile comprend des moyens pour fixer l'élément à actionner à la paroi (36) comprenant : -une première (42) et seconde pièce (43) de fixation placées en sandwich de part et d'autre de la paroi (36), -des moyens pour serrer ces deux pièces (42, 43) de fixation à la paroi (36) au travers de l'alésage (37), -des moyens de centrage de l'élément à actionner dans l'alésage (37), les dimensions des moyens de centrage et le diamètre de l'alésage (37) étant agencés de sorte à autoriser un mouvement de l'élément à actionner dans le plan de la paroi (36), lorsque les deux pièces (42, 43) ne sont pas totalement serrées. The invention relates to an assembly comprising an electromagnetic actuator and an element to be actuated, the actuator comprising: a mobile element comprising a tubular body (34) closed at one end by a wall (36), -the wall (36) comprises a bore (37) passing therethrough, said moving element comprises means for fixing the element to be actuated to the wall (36), comprising: a first (42) and second attachment piece (43) sandwiched by means of and other of the wall (36), means for clamping these two parts (42, 43) for attachment to the wall (36) through the bore (37), centering means of the element to be actuated in the bore (37), the dimensions of the centering means and the diameter of the bore (37) being arranged to allow a movement of the element to be actuated in the plane of the wall (36) when both pieces (42, 43) are not fully tightened.

VALVE ACTUATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Système (18) d'actionnement de soupapes (9, 10) pour un moteur (2) à combustion interne comprenant une première et une deuxième soupape (9, 10) respectivement actionnées par un premier et un deuxième actionneur (19) électromagnétique, chaque actionneur (19) électromagnétique comprenant un aimant (22) générant un champ magnétique et une bobine (23) alimentée électriquement plongée dans ce champ, l'alimentation électrique de chaque bobine (23) permettant de gérer alternativement des phases d'accélération et de décélération de chaque soupape (9, 10), ce système (18) comprenant un dispositif (20) de commande configuré pour transmettre durant une phase de décélération de la première soupape (9, 10) et une phase d'accélération de la deuxième soupape (9, 10), une énergie électrique induite générée par la bobine du premier (19) actionneur électromagnétique vers la bobine (23) du deuxième actionneur (19) électromagnétique, de sorte à utiliser cette énergie électrique pour la phase d'accélération de la deuxième soupape (9, 10).

Induction type electromagnetic valve drive

ELECTRODYNAMIC VALVE OPERATING DEVICE

内燃機関における動電式バルブ駆動装置

(57)【要約】 【課題】 動電式バルブ駆動装置におけるムービングコ イルを効果的に冷却し、その耐久性を向上させる。 【解決手段】 磁石１０が固着されたヨーク７に、給気 孔８を穿設し、これより導入した圧縮空気を、ムービン グコイル１３と磁石１０との間を通過させて外部に排出 させる。

Connecteur electrique d'un actionneur electromagnetique pour soupape

Ensemble (8) de commande d'un actionneur électromagnétique pour soupape (3) de moteur, qui comprend : - un actionneur (9) électromagnétique comportant : • une armature (12) ; • un équipage (14) mobile par rapport à l'armature et comprenant : o une carcasse (19) ; ○ une bobine enroulée sur la carcasse, cette bobine ayant une extrémité (23) primaire et une extrémité (24) secondaire ; ○ une soupape (3); - un circuit (10) électrique incluant une borne (25) primaire et une borne (26) secondaire; - un connecteur (11) électrique comprenant un conducteur primaire reliant la borne primaire à l'extrémité primaire, et un conducteur secondaire reliant la borne secondaire à l'extrémité secondaire ; les conducteurs primaire et secondaire se présentant chacun sous la forme d'une lame flexible et étant accolés avec interposition d'une couche isolante.

内燃機関における動電式バルブ駆動装置

(57)【要約】 【課題】 ボビンに巻回したムービングコイルの端子 と、その側方の固定側の端子とに接続した給電用リード 部材が折損等を起こすのを防止する。 【解決手段】 ボビン１９と、シリンダヘッド１側に固 定された不動部材（ブラケット）５との間に、ボビン１ ９の軸線回りの回動を阻止する回り止め手段３４、３５ を設ける。

内燃機関における動電式バルブ駆動装置

(57)【要約】 【課題】 動電式バルブ駆動装置におけるムービングコ イルの取付強度を高めて、その耐久性、信頼性を向上さ せる。 【解決手段】 ムービングコイル１３を、強化繊維１４ により覆うとともに、それに耐熱性及び機械的強度に優 れる合成樹脂を含浸させて硬化させる。

エンジンバルブの変位測定装置

(57)【要約】 【課題】 コイルの磁気特性が変化するのを防止するこ とにより、動弁機構の型式に関係なく、エンジンバルブ の変位を誤差なく高精度で測定する。 【解決手段】 コイル１３が巻回されたボビン１４を、 非磁性体よりなるシリンダヘッド２の上面の環状凹孔１ ２ａ内に収容する。

Connecteur electrique d'un actionneur electromagnetique pour soupape

Actionneur electromagnetique a trois bobines

扫气装置及其控制方法、汽车

本申请提供了一种扫气装置及其控制方法、汽车。扫气装置至少包括主体、活塞组件以及气门组件。主体内形成有与吸气口以及出气口连通的气体压缩腔；活塞组件安装于气体压缩腔内；活塞组件包括活塞，活塞能够沿气体压缩腔内移动，以使吸气口所在的空间内形成负压状态，从而吸入外部气体；活塞通过移动以封堵出气口，并压缩气体压缩腔内的气体；气门组件用于在气体压缩腔内的气压满足设定压力条件后打开出气口，以输出高压气体扫除预燃室内的废气。本申请能提升预燃室内废气的扫除效率。

一种应用于汽车发动机的电磁驱动配气机构

本发明公开了一种应用于汽车发动机的电磁驱动配气机构，包括电磁摆动执行器、摆杆、转动轴组件、气门连接件。通过该电磁驱动配气机构可将电磁摆动执行器的往复摆动转变为气门的直线运动，每个气门都由一套独立的系统进行驱动。该机构可通过控制摆动执行器来调整摆杆的摆动角度，进而调节气门的升程；可通过控制摆动执行器来调整摆杆的摆动角速度，进而调节气门开启或关闭的过渡时间。本发明具有体积小、响应时间短、气门升程可控等优点，可根据实际工况调整气门升程与气门正时，从而达到发动机低油耗、小体积、高输出动力的效果。