EP1175553B1 - Procede et dispositif pour ouvrir et fermer une soupape d'un moteur a combustion interne - Google Patents

Procede et dispositif pour ouvrir et fermer une soupape d'un moteur a combustion interne Download PDF

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Publication number
EP1175553B1
EP1175553B1 EP00922604A EP00922604A EP1175553B1 EP 1175553 B1 EP1175553 B1 EP 1175553B1 EP 00922604 A EP00922604 A EP 00922604A EP 00922604 A EP00922604 A EP 00922604A EP 1175553 B1 EP1175553 B1 EP 1175553B1
Authority
EP
European Patent Office
Prior art keywords
valve
mass
combustion engine
actuating
elements
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
EP00922604A
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German (de)
English (en)
Other versions
EP1175553A1 (fr
Inventor
Marcus Abele
Thomas Glas
Martin Lechner
Christoph Steinmetz
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 EP1175553A1 publication Critical patent/EP1175553A1/fr
Application granted granted Critical
Publication of EP1175553B1 publication Critical patent/EP1175553B1/fr
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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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means

Definitions

  • the invention relates to a method and a device for opening and closing a valve of an internal combustion engine.
  • the camshaft-controlled valve actuation is known, electromagnetic and hydraulic valve control.
  • the invention is based on electromagnetic Valve control (EMVS) off. But you can also in connection with others such as B. hydraulic or use pneumatic valve controls.
  • EMVS electromagnetic Valve control
  • the EMVS was built as a one-mass transducer.
  • there an armature can swing back and forth between two solenoids.
  • the armature is connected to the valve. in the the anchor is approximately in the middle when de-energized between the two solenoids. Because of the big Gap distances in the rest position and the associated poor efficiency is disproportionate in acceleration great energy expenditure necessary, that for itself already taken the feasibility of EMVS in series applications questions.
  • DE 197 23 405 A1 discloses a method with which a defined anchor impact speed at Closing the valve can be adjusted.
  • the invention is therefore concerned with the problem of electromagnetic or hydraulic valve controls reduce energy consumption and have a negative impact the combustion process through valve niches or to avoid recessed combustion chamber walls on the cylinder head.
  • the basic idea of the invention is the kinetic energy of the valve - and one possibly connected to the valve Part by mass - which this has at the end of the closing process, to be largely transferred to a mass body and store it there so that this energy for the next opening stroke of the valve is available.
  • there the impulse can be directly between the mass bodies transmitted or forwarded via at least one intermediate link be, the pontic either largely is stationary or with one of the two masses connected is.
  • the well-known EMVS is a one-mass pendulum represents, while the invention as a two-mass pendulum with energy transfer is writable.
  • a variation of the oscillation times can be done on the one hand Adjustment of the spring preload and / or the spring stiffness and on the other hand by known means such as magnetic Holding in the end positions can be realized.
  • the system is shown in Fig. 1 in the idle state.
  • a valve 1 and one with the valve 1 through a thread connected mass 1 'and a mass 2 can be their kinetic Energy or its impulse via an intermediate link 3 replace that is firmly connected to mass 2 (m2).
  • valve 1 Compared to known electromagnetic actuators for valve control, there is no connection between the valve 1 and the actuating element for the valve, that is to say the mass m 2 , the two are separated from one another, the separation in FIG. 1 being between the start of the thread of the valve and the intermediate element 3 ,
  • FIG. 2 A possible course of the method according to the invention is shown in Fig. 2 to read in conjunction with Fig. 1 is.
  • the switch-on times of the electromagnets M 1 and M 2 are plotted on the time axis t in the upper area and the deflections Sm 1 and Sm 2 of the masses m 1 and m 2 caused by the magnets in the lower area.
  • the magnet M 2 is energized and moves the mass m 2 accelerated up to time t 1 against the force of the spring 7 in the direction of the holding position (area A).
  • the mass m 1 accelerates from t 4 and is moved in the valve opening direction by energizing the magnet M 1 from t 5 to t 6 - area C -.
  • the mass m 2 moves by means of spring force into the rest position at the stop 5 and thereby covers the free travel s. This movement can also be delayed by a damping element.
  • the mass m 1 is delayed in the period from t 6 to t 7 .
  • the time in which the valve is fully open, area D, is between t 7 and t 8 .
  • the magnet M 1 holds the valve in the open position.
  • the mass m 2 accelerates and is moved towards the holding position by energizing M 2 in the period E and fixed in the holding position by energizing M 2 in the period F.
  • the energization of the magnets M 1 and M 2 is therefore interrupted shortly before reaching the deflected position of the associated masses (period t 1 to t 2 , t 6 to t 7 and t 10 to t 11 , in order to strike the respective one too hard To avoid attacks. From t 0 to t 4 the valve rests on the valve seat, from t 4 to t 10 the valve is fully or partially open.
  • the maximum Power consumption of the electromagnet is significantly reduced be in the area of large gap distances between The magnet and the component attracted by the magnet for recycling the kinetic energy much of the otherwise required saves electrical energy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Claims (8)

  1. Procédé pour ouvrir et fermer une soupape d'un moteur à combustion interne, dans lequel deux pièces de masse (1', 2) sont déplacées contre une force de rappel, une pièce de masse étant constituée d'une soupape (1) et d'une masse (1') reliée à la soupape, dans lequel lors de la fermeture de la soupape (1) l'énergie cinétique de la soupape et d'une masse (1') reliée le cas échéant à la soupape (1) est transférée au moins partiellement à une seconde masse (2) montée mobile et est provisoirement accumulée dans celle-ci sous forme d'énergie cinétique ou potentielle et que l'énergie accumulée dans la seconde masse (2) est transféré en retour par choc à la soupape (1) et le cas échéant à la masse (1'), afin de lancer l'étape d'ouverture de la soupape (1), et dans lequel après le choc la seconde masse (2) est en appui contre une butée (5), tandis que la soupape (1) est en mouvement, caractérisé en ce que, dans la position ouverte de la soupape, un électro-aimant (10) agit sur la pièce de masse (1').
  2. Dispositif pour actionner une soupape d'un moteur à combustion interne
    comportant les particularités suivantes
    deux pièces de masse (1', 2), montées mobiles contre une force de rappel, dont l'une est constituée d'une soupape (1) et d'une masse (1') reliée à la soupape,
    une surface de contact est prévue sur au moins une pièce de masse pour un transfert d'énergie de type choc entre les deux pièces de masse,
    une butée (5), prévue pour la pièce de masse (2),
    caractérisé en ce qu'un électro-aimant (10) est disposé de telle façon qu'il peut agir sur la pièce de masse (1') pour maintenir la soupape en position ouverte.
  3. Dispositif pour actionner une soupape d'un moteur à combustion interne selon la revendication 2,
    caractérisé en ce que les deux pièces de masse (1', 2) sont montées mobiles sensiblement ou exactement dans la même direction.
  4. Dispositif pour actionner une soupape d'un moteur à combustion interne selon la revendication 2,
    caractérisé en ce que la première pièce de masse (1') est montée coulissante linéairement et que la seconde pièce de masse (2) est montée pivotante et rétro-pivotante, mais sans rotation possible.
  5. Dispositif pour actionner la soupape (1) d'un moteur à combustion interne selon l'une des revendications 3 et 4,
    caractérisé par
    un ou plusieurs organes intermédiaires transmetteurs d'impulsions entre les deux pièces de masse.
  6. Dispositif selon l'une des revendications 2 à 5,
    caractérisé en ce que la force de rappel est créée par un ressort.
  7. Dispositif selon l'une des revendications 4 et 5,
    caractérisé par
    des moyens pour maintenir fermement au moins l'une des deux pièces de masse dans la position déviée.
  8. Dispositif selon l'une des revendications 4 et 5,
    caractérisé par
    des moyens pour influencer la fréquence d'oscillation de la seconde pièce de masse (2).
EP00922604A 1999-04-30 2000-04-05 Procede et dispositif pour ouvrir et fermer une soupape d'un moteur a combustion interne Expired - Lifetime EP1175553B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19919734 1999-04-30
DE19919734A DE19919734A1 (de) 1999-04-30 1999-04-30 Verfahren und Vorrichtung zum Öffnen und Schließen eines Ventils eines Verbrennungsmotors
PCT/EP2000/002996 WO2000066883A1 (fr) 1999-04-30 2000-04-05 Procede et dispositif pour ouvrir et fermer une soupape d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1175553A1 EP1175553A1 (fr) 2002-01-30
EP1175553B1 true EP1175553B1 (fr) 2003-07-30

Family

ID=7906439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00922604A Expired - Lifetime EP1175553B1 (fr) 1999-04-30 2000-04-05 Procede et dispositif pour ouvrir et fermer une soupape d'un moteur a combustion interne

Country Status (5)

Country Link
US (1) US6581555B1 (fr)
EP (1) EP1175553B1 (fr)
BR (1) BR0010186B1 (fr)
DE (2) DE19919734A1 (fr)
WO (1) WO2000066883A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7871058B2 (en) * 2007-07-25 2011-01-18 Illinois Tool Works Inc. Dual inline solenoid-actuated hot melt adhesive dispensing valve assembly
SE542805C2 (sv) 2018-07-31 2020-07-14 Hedman Ericsson Patent Ab Elektriskt aktiverad ventilaktuator för en internförbränningsmotor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058992B (en) * 1979-07-06 1983-05-05 Lucas Industries Ltd Actuator mechanism
DE3911496C2 (de) * 1989-04-08 1998-01-29 Bayerische Motoren Werke Ag Betätigungsvorrichtung für ein Ladungswechsel-Ventil einer Brennkraftmaschine
DE3920976A1 (de) * 1989-06-27 1991-01-03 Fev Motorentech Gmbh & Co Kg Elektromagnetisch arbeitende stelleinrichtung
DE9420463U1 (de) * 1994-12-21 1996-04-25 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Elektromagnetisch betätigbare Stellvorrichtung
US5645019A (en) * 1996-11-12 1997-07-08 Ford Global Technologies, Inc. Electromechanically actuated valve with soft landing and consistent seating force
US5765513A (en) * 1996-11-12 1998-06-16 Ford Global Technologies, Inc. Electromechanically actuated valve
US5730091A (en) * 1996-11-12 1998-03-24 Ford Global Technologies, Inc. Soft landing electromechanically actuated engine valve
DE19723405A1 (de) * 1997-06-04 1998-12-10 Fev Motorentech Gmbh & Co Kg Verfahren zur Steuerung eines elektromagnetischen Ventilbetriebes für ein Gaswechselventil
DE19733186A1 (de) * 1997-07-31 1999-02-04 Fev Motorentech Gmbh & Co Kg Elektromagnetisch betätigbares Gaswechselventil für eine Kolbenbrennkraftmaschine

Also Published As

Publication number Publication date
DE19919734A1 (de) 2000-11-02
US6581555B1 (en) 2003-06-24
BR0010186B1 (pt) 2008-11-18
EP1175553A1 (fr) 2002-01-30
BR0010186A (pt) 2002-02-13
DE50003113D1 (de) 2003-09-04
WO2000066883A1 (fr) 2000-11-09

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