EP1276973B1 - Dispositif de commande pour soupape d'admission ou de sortie de moteur a combustion interne - Google Patents

Dispositif de commande pour soupape d'admission ou de sortie de moteur a combustion interne Download PDF

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Publication number
EP1276973B1
EP1276973B1 EP01933619A EP01933619A EP1276973B1 EP 1276973 B1 EP1276973 B1 EP 1276973B1 EP 01933619 A EP01933619 A EP 01933619A EP 01933619 A EP01933619 A EP 01933619A EP 1276973 B1 EP1276973 B1 EP 1276973B1
Authority
EP
European Patent Office
Prior art keywords
control
areas
keb
valve
control device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01933619A
Other languages
German (de)
English (en)
Other versions
EP1276973A1 (fr
Inventor
Frank Dolderer
Volker Korte
Christoph Steinmetz
Martin Lechner
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.)
Mahle Ventiltrieb GmbH
Original Assignee
Mahle Ventiltrieb 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 Mahle Ventiltrieb GmbH filed Critical Mahle Ventiltrieb GmbH
Publication of EP1276973A1 publication Critical patent/EP1276973A1/fr
Application granted granted Critical
Publication of EP1276973B1 publication Critical patent/EP1276973B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • 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

Definitions

  • the invention relates to a control device for a single or Exhaust valve of an internal combustion engine according to the preamble of claim 1.
  • valve controls can be switched for different, for example Load conditions or a braking operation of the engine.
  • Such devices are in a wide variety of configurations known from, for example, DE 27 53 197 A1, DE 36 13 945 A1, DE 38 00 347 A1, DE 41 36 143 A1, EP 0 775 251 B1, US 5,544,626 and JP 6-88 512 A.
  • the invention is concerned with a generic device with the problem of easy and safe switching of the KEB areas in a respectively force-transmitting state between control and valve.
  • the KEB areas are always in contact with the assigned control curve areas of the control element, wherein only the non-force-transmitting KEB area in this way is unfixed in the base body of the control element, that it follows the control curve without having a force-transmitting effect can.
  • the required locking of the KEB area which is currently switched to power transmission not hydraulically, but mechanically through the intervention of one Bolt into the movably mounted part of the KEB area. Only the bolt and its fixing force are moved hydraulically however mechanically and not hydraulically due to its locking is conditional.
  • the main difference is in particular in that there is always a cam area in that facility only disengaged the control shaft can be, if there are control curves that are not in the Envelope of the aforementioned control curve fall. This is opposite a serious disadvantage of the teaching according to the invention, whereby that known device the problem of the invention does not solve.
  • Hydraulic units are used as switching means.
  • the Use of hydraulic units has the advantage that in this the power transmission areas of the control element compared to the Control element on the one hand and / or the valve on the other hand integrated can be. This means that these hydraulic units can be used in a simple way that with engine valve controls themselves known l game compensation measures are integrated.
  • control elements can advantageously drag or Rocker arms are used. Use is also possible an actuating element that can only be moved in translation.
  • the power transmission is preferably carried out at the end of a Valve stem or when actuating several Valves on an intermediate element such as a valve bridge.
  • a camshaft 1 as a control element acts as a Actuating rocker arm 2, which in turn the Movement of the valve, not shown, of an internal combustion engine controls.
  • the engine valve, not shown, is spring-loaded, such that the valve stem end through the Valve spring force is pressed onto the rocker arm 2.
  • the Area of rocker arm 2 with which the rocker arm is on the valve stem end acts as Power transfer area (KÜB) designated and is in the drawing marked with the reference number 3.
  • the camshaft 1 has one another in the axial direction deviating, contiguous control contours 4, 5.
  • This Control contours 4, 5 are 2 contact areas on the rocker arm assigned, the following as force application areas (KEB) are marked and marked in the drawing with Primary KEB area 6 and secondary KEB area 7.
  • the primary KEB area 6 consists of one in a fixed position within of the rocker arm 2 rotatably mounted primary roller 8th.
  • the secondary KEB area 7 forms one within a plunger 9 of a hydraulic unit 10 rotatably mounted secondary roller 11.
  • the KÜB area 3 is in a piston 12 one further hydraulic unit 13 integrated.
  • the hydraulic units 10 and 13 are via a hydraulic switching device hydraulically via a connecting channel 14 (FIGS. 2, 3) connected with each other.
  • connecting channel 14 are hydraulic not shown in the drawing Control valves for activating the hydraulic units, why the connecting channel 14 also with a hydraulic Pressure source and a control line, not shown connected is.
  • the pivot lever 2 can be pivoted about an articulation axis 15.
  • the plunger 9 with the secondary roller 11 in the Hydraulic unit 10 retracted and the piston 12 of the hydraulic unit 13 is predetermined in terms of furnishings Dimension fully extended and hydraulically locked. Due to the spring pressure under which the valve stem of the Engine valve is stopped, the rocker arm 2 engages over the primary roller 8 on the control contour 4 of the camshaft 1. By hydraulic locking of the piston 12 in the hydraulic unit 13, the engine valve via the rocker arm 2 in a first switching position after the control contour 4 of the Camshaft 1 controlled.
  • Control elements of engine valves by a camshaft are usually driven by a so-called. hydraulic valve clearance compensation.
  • Such a hydraulic Valve clearance compensation measure can be taken with the present Control element design through integration into the hydraulic units 10 and 13 are done in a simple manner. All that is required is the use of generally known ones Expertise, so that here no further technical Explanations are necessary. With the hydraulic units described In principle, 10 or 13 is enough Removal of the specified path limitation.
  • This version is functional compared to the device 1 to 3 the same parts with the same reference numerals busy.
  • This version is also functional compared to the Devices in Fig. 1 to 4 the same parts with the same reference numerals busy.
  • a setting plunger 2 '' in this embodiment arranged as an actuator between the camshaft and valve.

Landscapes

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

Claims (4)

  1. Dispositif de commande pour au moins une soupape d'admission ou de sortie chargée par ressort d'un moteur à combustion interne comprenant un élément de réglage et au moins un élément de commande (2, 2', 2" et 1, 1'), dans lequel
    a) l'élément de réglage (2, 2', 2") présente un corps de base et est disposé de façon mobile entre le au moins un élément de commande (1, 1') et la soupape,
    b) le au moins un élément de commande (1, 1') tourne pendant le fonctionnement du dispositif de commande,
    c) par le au moins un élément de commande (1, 1') en rotation, au moins deux zones périphériques en rotation de l'élément de commande, ayant des contours différents dans la direction périphérique, sont présentes en tant que contours de commande (4, 5),
    d) au moins deux zones de déclenchement de forces ZDF (6, 7) et une zone de transmission de forces ZTF (3) positionnables différemment les unes des autres sont prévues sur le corps de base de l'élément de réglage (2, 2', 2'')
    e) la zone de transmission de forces ZTF (3) agit sur la au moins une soupape de moteur,
    f) à l'intérieur du corps de base, des moyens de commutation sont prévus pour associer alternativement en transmission de forces les zones ZDF (6, 7) aux différentes zones de courbes de commande (4, 5) de l'élément de commande (1, 1'),
    g) l'élément de commande (1, 1') présente exclusivement des zones de courbes de commande qui peuvent être associées en transmission de forces aux zones ZDF (6, 7) situées à l'intérieur du corps de base de l'élément de réglage (2, 2', 2''),
    h) pour l'association alternative en transmission de forces des zones ZDF (6, 7) aux différentes zones de courbes de commande de l'élément de commande (1, 1'), des positions mutuellement différentes, uniquement délimitées par les courbes de commande de l'élément de commande (1, 1'), de toutes les zones ZDF (6, 7) et ZTF (3) sont réglables par les moyens de commutation (10, 13) quant à la distance entre l'élément de commande (1, 1') et la soupape,
    caractérisé par les particularités suivantes,
    i) l'une des deux zones ZDF (6, 7) ainsi que la zone ZTF (3) sont montées avec une possibilité de déplacement dans le corps de base de l'élément de réglage (2, 2', 2''),
    j) par une modification de l'association mutuelle entre la zone ZTF (3) et les au moins deux zones ZDF (6, 7), les moyens de commutation (10, 13) provoquent un déplacement et une fixation exclusivement hydrauliques des zones mobiles ZDF (6, 7) et ZTF (3) à l'intérieur du corps de base de l'élément de réglage (2, 2', 2''),
    k) la zone ZDF (6 ou 7) ne transmettant pas les forces est commutable par les moyens de commutation (10, 13) dans une position hors de contact avec la courbe de commande associée de l'élément de commande (1, 1').
  2. Dispositif de commande suivant la revendication 1, caractérisé en ce que des mesures de rattrapage hydraulique du jeu de soupape, connues en soi par la technique des soupapes pour moteurs, sont intégrées aux moyens de commutation (10, 13).
  3. Dispositif de commande suivant l'une des revendications 1 et 2,
    caractérisé en ce que sont prévus au moins deux éléments de commande réalisés sous forme d'arbres à cames (1, 1').
  4. Dispositif de commande suivant la revendication 3,
    caractérisé en ce que les au moins deux arbres à cames (1, 1') tournent à des vitesses différentes lors du fonctionnement du dispositif de commande.
EP01933619A 2000-04-28 2001-04-20 Dispositif de commande pour soupape d'admission ou de sortie de moteur a combustion interne Expired - Lifetime EP1276973B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10020884 2000-04-28
DE10020884A DE10020884A1 (de) 2000-04-28 2000-04-28 Steuereinrichtung für ein Ein- oder Auslaßventil eines Verbrennungsmotors
PCT/DE2001/001532 WO2001083952A1 (fr) 2000-04-28 2001-04-20 Dispositif de commande pour soupape d'admission ou de sortie de moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1276973A1 EP1276973A1 (fr) 2003-01-22
EP1276973B1 true EP1276973B1 (fr) 2003-11-19

Family

ID=7640235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01933619A Expired - Lifetime EP1276973B1 (fr) 2000-04-28 2001-04-20 Dispositif de commande pour soupape d'admission ou de sortie de moteur a combustion interne

Country Status (4)

Country Link
US (1) US6640761B2 (fr)
EP (1) EP1276973B1 (fr)
DE (2) DE10020884A1 (fr)
WO (1) WO2001083952A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7182687B2 (ja) * 2018-07-16 2022-12-02 ジェイコブス ビークル システムズ、インコーポレイテッド エンジンブレーキおよびロストモーション排気バルブ開放を組み合わせたシステムおよび方法

Family Cites Families (28)

* Cited by examiner, † Cited by third party
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DE2753197A1 (de) 1976-12-15 1978-06-22 Eaton Corp Ventilsteuervorrichtung
JPS55152308U (fr) * 1979-04-18 1980-11-04
US4475489A (en) * 1981-05-27 1984-10-09 Honda Giken Kogyo Kabushiki Kaisha Variable valve timing device for an internal combustion engine
US4726332A (en) * 1985-04-26 1988-02-23 Mazda Motor Corporation Variable valve mechanism for internal combustion engines
GB2199894B (en) 1987-01-08 1990-10-24 Honda Motor Co Ltd Valve operating device in internal combustion engine
JP2621049B2 (ja) * 1988-09-30 1997-06-18 スズキ株式会社 ４サイクルエンジンの動弁装置
SE466320B (sv) 1989-02-15 1992-01-27 Volvo Ab Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor
JP2700101B2 (ja) * 1989-03-24 1998-01-19 フジオーゼックス株式会社 内燃機関用弁のリフト調節装置
JP2810442B2 (ja) * 1989-09-25 1998-10-15 日産自動車株式会社 エンジンの弁作動装置
JPH03149306A (ja) 1989-11-02 1991-06-25 Nissan Motor Co Ltd エンジンの弁作動装置
JPH03179115A (ja) * 1989-12-08 1991-08-05 Hino Motors Ltd 内燃機関の動弁装置
JP2986955B2 (ja) * 1991-04-26 1999-12-06 株式会社ユニシアジェックス エンジンの弁作動装置
JPH077719A (ja) 1991-06-28 1995-01-10 Nec Home Electron Ltd テレビジョン信号自動判別装置
DE4136143A1 (de) 1991-11-02 1993-05-06 Audi Ag, 8070 Ingolstadt, De Ventilsteuereinrichtung fuer eine brennkraftmaschine
JPH0688512A (ja) 1992-09-04 1994-03-29 Nissan Motor Co Ltd 内燃機関の吸・排気弁作動装置
FR2709150B1 (fr) * 1992-10-16 1996-08-30 Picchi Jean Pierre Dispositif de commande de levée et temps d'ouverture variable d'une soupape.
FR2709149A1 (fr) * 1992-10-16 1995-02-24 Picchi Jean Pierre Dispositif de commande de levée et temps d'ouverture variable d'une soupape.
SE501193C2 (sv) 1993-04-27 1994-12-05 Volvo Ab Avgasventilmekanism i en förbränningsmotor
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DE19802738A1 (de) 1998-01-26 1999-07-29 Opel Adam Ag Vorrichtung zur variablen Steuerung eines Ventils einer Brennkraftmaschine

Also Published As

Publication number Publication date
DE50101002D1 (de) 2003-12-24
DE10020884A1 (de) 2001-10-31
EP1276973A1 (fr) 2003-01-22
WO2001083952A1 (fr) 2001-11-08
US6640761B2 (en) 2003-11-04
US20030101955A1 (en) 2003-06-05

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