EP1120549B1 - Commande de soupape de moteur à combustion interne par actionneur électromagnétique muni de ressorts de rappel pneumatiques - Google Patents

Commande de soupape de moteur à combustion interne par actionneur électromagnétique muni de ressorts de rappel pneumatiques Download PDF

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Publication number
EP1120549B1
EP1120549B1 EP00126374A EP00126374A EP1120549B1 EP 1120549 B1 EP1120549 B1 EP 1120549B1 EP 00126374 A EP00126374 A EP 00126374A EP 00126374 A EP00126374 A EP 00126374A EP 1120549 B1 EP1120549 B1 EP 1120549B1
Authority
EP
European Patent Office
Prior art keywords
magnet
armature
piston
gas
pneumatic springs
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
EP00126374A
Other languages
German (de)
English (en)
Other versions
EP1120549A2 (fr
EP1120549A3 (fr
Inventor
Hans-Jörg Steffens
Frank Meissner
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1120549A2 publication Critical patent/EP1120549A2/fr
Publication of EP1120549A3 publication Critical patent/EP1120549A3/fr
Application granted granted Critical
Publication of EP1120549B1 publication Critical patent/EP1120549B1/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
    • 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 according to the preamble of claim 1 to a Valve control for internal combustion engines equipped with a gas spring Electromagnetic actuator, in which one with a gas exchange valve in drive connection standing armature between a closing magnet and an opening magnet is arranged to oscillate against restoring forces of the gas springs, wherein the separated by means of the armature gas springs from a rechargeable Memory a gas metered via controllable valves and from the gas springs via controllable drain valves gas is drained.
  • Such a valve control is known for example from US 5,611,303, the interaction of the metering valves and the discharge valves of the gas springs designed with regard to a stroke-adjustable actuator.
  • the Gas spring formed essentially by a piston-like tube, the on Half length is divided over an anchor section.
  • the invention is based on the object, the generic valve control simple structure so that variable spring characteristics in conjunction achieved with a controlled stop damping, wherein the stop damping additionally or independently of the drain valves can be influenced.
  • each chamber a pressure-controlled against a return spring slidable piston comprises, over its degree of displacement a corresponding compression pressure between Separating piston or armature and the respective end face of the closing magnet and the Opening magnet is effected.
  • both the spring stiffness and advantageously also the impact damping are influenced, for example, at relatively soft spring characteristic and fast acting piston achieves a high damping is.
  • a gas displacement is effected for Separating one in the closed position of the gas exchange valve by means of a permanent magnet on the front side of the closing magnet held separating piston or Ankers, the pressure-controlled in the closed position when stopping the engine is arranged.
  • volume-variable chamber according to the invention can thus with appropriate control of the piston as a breakaway device held on the closing magnet Serve anchor.
  • the invention is based on an embodiment schematically illustrated in the drawing described.
  • a valve control 1 for unillustrated internal combustion engines comprises a electro-magnetic actuator 2 with gas springs 3 and 4, one with a gas exchange valve 5 in drive connection armature 6 between a closing magnet 7 and an opening magnet 8 against restoring forces of the gas springs. 3 and 4 is arranged oscillating.
  • the gas springs 3 and 4 is made of a rechargeable Memory 9 by means of lines 9 ', 9 "a gas metered via controllable valves 10, wherein from the gas springs 3 and 4 via controllable discharge valves 11 gas is drained.
  • the invention proposes that the armature 6 as a slidably disposed in a cylinder 12 of the actuator 2 tightly Separating piston 13 is formed between two gas springs 3 and 4, and that the metering valves 10 and the drain valves 11 as a function of Load ranges of the internal combustion engine controlled the setting of adapted spring characteristics serve, wherein the respective gas spring 3, 4 beyond the limiting End face 7 'and 8' of the closing magnet 7 and the opening magnet 8 with a controlled / regulated volume variable chamber 14 in each magnet 7, 8 in Connection stands.
  • each chamber 14 includes a pressure controlled against a return spring 15 displaceable piston 16, via whose Dimension of the displacement a corresponding compression end pressure between separating piston 13 and armature 12 and the respective end face 7 'and 8' of the closing magnet 7 and the opening magnet 8 is effected.
  • the chambers 14 can each be controlled separately or jointly be, which, for example, with separate control of the chambers 14 in the Gas springs 3 and 4 different spring characteristics are to be realized.

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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)
  • Magnetically Actuated Valves (AREA)

Claims (4)

  1. Commande de soupape de moteur à combustion interne par un actionneur électromagnétique équipé de ressorts pneumatiques de rappel, dans laquelle
    un induit (6) entraínant une soupape d'échange de gaz (5) est monté oscillant entre un électroaimant de fermeture (7) et un électroaimant d'ouverture (8) contre l'action des forces de rappel des ressorts pneumatiques (3 ou 4),
    un gaz provenant d'un réservoir chargeable (9) est délivré de manière dosée par des soupapes commandables (10) aux ressorts pneumatiques (3, 4) séparés l'un de l'autre par l'induit (6),
    le gaz peut sortir des ressorts pneumatiques (3, 4) par l'intermédiaire de soupapes d'évacuation commandables (11),
       caractérisée en ce que
    l'induit (6) est constitué par un piston séparateur (13) situé entre les deux ressorts pneumatiques (3, 4) et monté coulissant avec étanchéité dans un cylindre (12) de l'actionneur (2),
    les soupapes de dosage (10) et les soupapes d'évacuation (11) servent sur commande au réglage de caractéristiques élastiques adaptées en fonction des plages de charge du moteur à combustion interne, et
    chaque ressort pneumatique (3, 4) est relié, du côté de la face frontale contiguë (7', 8') de l'électroaimant de fermeture (7) et de l'électroaimant d'ouverture (8) respectivement, à une chambre (14) à volume variable commandée/régulée située dans l'électroaimant correspondant (7, 8).
  2. Commande de soupape selon la revendication 1,
       caractérisée en ce que
    chaque chambre (14) comprend un piston (16) commandé par pression et pouvant coulisser contre l'action d'un ressort de rappel (15), et
    l'importance de coulissement crée par compression, une pression correspondante entre le piston séparateur (13), c'est-à-dire l'induit (6), et la face frontale correspondante (7', 8') de l'électroaimant de fermeture (7) et de l'électroaimant d'ouverture (8).
  3. Commande de soupape selon les revendications 1 et 2,
       caractérisée en ce que
    par l'intermédiaire de la chambre (14) située dans l'électroaimant de fermeture (7), un piston (16) commandé par pression produit, lorsque le moteur à combustion démarre, une compression de gaz pour séparer le piston de séparation (13) ou l'induit (6) qui est maintenu par un aimant permanent (17) sur la face frontale (7') de l'électroaimant de fermeture (7), quand la soupape d'échange de gaz (5) est fermée, et
    quand le moteur à combustion interne s'arrête, le piston de séparation (13) ou l'induit (6) est maintenu par pression dans cette position de fermeture.
  4. Commande de soupape selon les revendications 1 à 3,
       caractérisée en ce que
    les chambres (14) sont commandées individuellement et/ou en commun.
EP00126374A 2000-01-26 2000-12-02 Commande de soupape de moteur à combustion interne par actionneur électromagnétique muni de ressorts de rappel pneumatiques Expired - Lifetime EP1120549B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10003115 2000-01-26
DE10003115A DE10003115A1 (de) 2000-01-26 2000-01-26 Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor

Publications (3)

Publication Number Publication Date
EP1120549A2 EP1120549A2 (fr) 2001-08-01
EP1120549A3 EP1120549A3 (fr) 2001-12-05
EP1120549B1 true EP1120549B1 (fr) 2005-05-25

Family

ID=7628665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126374A Expired - Lifetime EP1120549B1 (fr) 2000-01-26 2000-12-02 Commande de soupape de moteur à combustion interne par actionneur électromagnétique muni de ressorts de rappel pneumatiques

Country Status (3)

Country Link
EP (1) EP1120549B1 (fr)
DE (2) DE10003115A1 (fr)
ES (1) ES2239995T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2382378B (en) * 2001-11-22 2003-12-24 Keith Gordon Hall Electromagnetic valve actuator
JP2003314734A (ja) * 2002-04-22 2003-11-06 Toyota Motor Corp 電磁駆動弁の制御装置
WO2004044390A1 (fr) * 2002-11-12 2004-05-27 Duckdive Pty. Limited Soupape electromagnetique rapide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3106890B2 (ja) 1995-01-11 2000-11-06 トヨタ自動車株式会社 内燃機関の弁駆動装置
DE19725218C2 (de) * 1997-06-15 2000-11-02 Daimler Chrysler Ag Vorrichtung zur Betätigung eines Gaswechselventiles für eine Brennkraftmaschine
DE19733186A1 (de) * 1997-07-31 1999-02-04 Fev Motorentech Gmbh & Co Kg Elektromagnetisch betätigbares Gaswechselventil für eine Kolbenbrennkraftmaschine
DE19829858A1 (de) * 1998-07-05 2000-01-13 Bayerische Motoren Werke Ag Kombinierter elektromagnetischer/pneumatischer Aktuator zur Steuerung eines Hubventils, insbesondere Gaswechselventil einer Brennkraftmaschine
JP2000027616A (ja) * 1998-07-10 2000-01-25 Nissan Motor Co Ltd 内燃機関の動弁装置

Also Published As

Publication number Publication date
DE50010392D1 (de) 2005-06-30
EP1120549A2 (fr) 2001-08-01
DE10003115A1 (de) 2001-08-02
ES2239995T3 (es) 2005-10-16
EP1120549A3 (fr) 2001-12-05

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