EP1120549B1 - Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor - Google Patents
Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor Download PDFInfo
- 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
Links
Images
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.
Landscapes
- 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)
Description
Claims (4)
- Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor,bei dem ein mit einem Gaswechselventil (5) in Antriebsverbindung stehender Anker (6) zwischen einem Schließmagneten (7) und einem Öffnungsmagneten (8) gegen Rückstellkräfte der Gasfedern (3, 4) oszillierend angeordnet ist, wobeiden mittels des Ankers (6) voneinander getrennten Gasfedern (3, 4) aus einem aufladbaren Speicher (9) ein Gas über ansteuerbare Ventile (10) zugemessen undaus den Gasfedem (3, 4) über ansteuerbare Ablass-Ventile (11) Gas abgelassen ist,dass der Anker (6) als ein in einem Zylinder (12) des Aktors (2) gleitbeweglich dicht angeordneter Trennkolben (13) zwischen beiden Gasfedem (3, 4) ausgebildet ist, unddass die Zumess-Ventile (10) und die Ablass-Ventile (11) in Abhängigkeit von Lastbereichen der Brennkraftmaschine gesteuert der Einstellung angepasster Federkennlinien dienen, wobeidie jeweilige Gasfeder (3, 4) jenseits der begrenzenden Stirnseite (7', 8') des Schließmagneten (7) bzw. des Öffnungsmagneten (8) mit einer gesteuert/geregelt volumenvariablen Kammer (14) im jeweiligen Magneten (7, 8) in Verbindung steht.
- Ventilsteuerung nach Anspruch 1, dadurch gekennzeichnet,dass jede Kammer (14) einen druckgesteuert gegen eine Rückstellfeder (15) verschiebbaren Kolben (16) umfasst, überdessen Maß der Verschiebung ein entsprechender Verdichtungsenddruck zwischen Trennkolben (13) bzw. Anker (6) und der jeweiligen Stirnseite (7', 8') des Schließmagneten (7) und des Öffnungsmagneten (8) bewirkt ist.
- Ventilsteuerung nach Anspruch 1 und 2, dadurch gekennzeichnet,dass über die Kammer (14) im Schließmagneten (7) mittels eines druckgesteuert beschleunigten Kolbens (16) beim Start der Brennkraftmaschine eine Gasverdrängung bewirkt ist zum Trennen eines in Schließstellung des Gaswechselventils (5) mittels eines Dauermagneten (17) an der Stirnseite (7') des Schließmagneten (7) gehaltenen Trennkolbens (13) bzw. Ankers (6), derbeim Abstellen der Brennkraftmaschine druckgesteuert in dieser Schließstellung angeordnet ist.
- Ventilsteuerung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Kammern (14) jeweils gesondert und/oder gemeinsam angesteuert sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10003115A DE10003115A1 (de) | 2000-01-26 | 2000-01-26 | Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor |
DE10003115 | 2000-01-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1120549A2 EP1120549A2 (de) | 2001-08-01 |
EP1120549A3 EP1120549A3 (de) | 2001-12-05 |
EP1120549B1 true EP1120549B1 (de) | 2005-05-25 |
Family
ID=7628665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00126374A Expired - Lifetime EP1120549B1 (de) | 2000-01-26 | 2000-12-02 | Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1120549B1 (de) |
DE (2) | DE10003115A1 (de) |
ES (1) | ES2239995T3 (de) |
Families Citing this family (3)
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 (en) * | 2002-11-12 | 2004-05-27 | Duckdive Pty. Limited | High speed solenoid valve |
Family Cites Families (5)
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 |
-
2000
- 2000-01-26 DE DE10003115A patent/DE10003115A1/de not_active Withdrawn
- 2000-12-02 EP EP00126374A patent/EP1120549B1/de not_active Expired - Lifetime
- 2000-12-02 DE DE50010392T patent/DE50010392D1/de not_active Expired - Fee Related
- 2000-12-02 ES ES00126374T patent/ES2239995T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1120549A3 (de) | 2001-12-05 |
ES2239995T3 (es) | 2005-10-16 |
EP1120549A2 (de) | 2001-08-01 |
DE50010392D1 (de) | 2005-06-30 |
DE10003115A1 (de) | 2001-08-02 |
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