EP1120550B1 - 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
- EP1120550B1 EP1120550B1 EP00126375A EP00126375A EP1120550B1 EP 1120550 B1 EP1120550 B1 EP 1120550B1 EP 00126375 A EP00126375 A EP 00126375A EP 00126375 A EP00126375 A EP 00126375A EP 1120550 B1 EP1120550 B1 EP 1120550B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pneumatic springs
- gas
- valve control
- carbon dioxide
- control system
- 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 springs 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 via controllable valves and metered from the gas spring via controllable drain valves gas is drained.
- valve control is known for example from US 5,611,303, wherein the configuration of the gas spring on both sides of the armature on at both sides thereof arranged pipe sections in conjunction with a stroke adjustment of Actors to a complex seal arrangement leads to considerable friction losses on the one hand and sealing losses of the seal arrangement on the other.
- seal losses by an appropriate supply of Gas springs are compensated from the rechargeable storage, however, resulting in a increased power consumption of a memory supplying air pump leads.
- the invention is based on the object for a generic valve control to show a gas spring system with lower sealing losses.
- the advantage of the invention is the fact that at the same, for air as a medium used sealing gap when using a medium with the air molecules in their Size significantly surpassing molecules, the flow or sealing losses are substantially reduced.
- carbon dioxide is proposed for this purpose, wherein used for this purpose preferably in the internal combustion engine generated carbon dioxide is.
- Carbon dioxide is proposed in a further embodiment that the exhaust side Carbon dioxide of the internal combustion engine via a cleaning and / or cooling device the memory is supplied and that the gas spring associated Zumess valves and drain valves controlled via load ranges of the internal combustion engine the setting adjusted spring characteristics are used.
- the invention is based on an example shown schematically in the drawing a valve control described.
- a valve controller 1 for an internal combustion engine includes a electro-magnetic actuator 2 with gas springs 3, 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, 4 oscillating is arranged.
- the gas springs 3 and 4 is made of a rechargeable memory 9 via lines 9 'and 9 "metered a gas via controllable valves 10, wherein from the gas springs. 3 and 4 is discharged via controllable drain valves 11 gas.
- the armature 6 as a in a cylinder 12 of the actuator 2 slidably arranged separating piston 13 between two gas springs. 3 and 4, wherein for the gas springs 3 and 4, a medium with the size is used by molecules surpassing air molecules.
- carbon dioxide (CO 2 ) is preferably used as the medium. This provides the advantage of using carbon dioxide generated in an internal combustion engine during combustion.
- valve control 1 To achieve a reliable valve control 1 is the exhaust gas carbon dioxide the internal combustion engine via a cleaning and / or cooling device 14th fed to the memory 9, from which the carbon dioxide via lines 9 'and 9 "the Gas springs 3 and 4 controlled flows.
- the controlled inflow is so taken that the gas valves 3 and 4 associated metering valves 10 and drain valves 11 controlled via load ranges of the engine adapted to the setting Spring characteristics of the gas springs 3 and 4 serve.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Mechanically-Actuated Valves (AREA)
- Magnetically Actuated Valves (AREA)
Description
Claims (4)
- Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedem 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 Gasfedem (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 Gasfedern (3, 4) ausgebildet ist, wobeifür die Gasfedern (3, 4) CO2 oder ein Medium mit die Größe von Luftmolekülen übertreffenden Molekülen verwendet ist.
- Ventilsteuerung nach Anspruch 1, dadurch gekennzeichnet, - dass das Medium Kohlendioxid (CO2) ist.
- Ventilsteuerung nach Anspruch 2, dadurch gekennzeichnet, dass in der Brennkraftmaschine erzeugtes Kohlendioxid (CO2) verwendet ist.
- Ventilsteuerung nach Anspruch 3, dadurch gekennzeichnet,dass abgasseitiges Kohlendioxid (CO2) der Brennkraftmaschine über eine Reinigungs- und/oder Kühleinrichtung (14) dem Speicher (9) zugeführt ist unddass die den Gasfedem (3, 4) zugeordneten Zumess-Ventile (10) und Ablass-Ventile (11) über Lastbereiche der Brennkraftmaschine gesteuert der Einstellung angepasster Federkennlinien dienen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10003142A DE10003142A1 (de) | 2000-01-26 | 2000-01-26 | Ventilsteuerung für Brennkraftmaschinen mit einem mit Gasfedern ausgerüsteten elektro-magnetischen Aktor |
DE10003142 | 2000-01-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1120550A2 EP1120550A2 (de) | 2001-08-01 |
EP1120550A3 EP1120550A3 (de) | 2001-12-05 |
EP1120550B1 true EP1120550B1 (de) | 2005-06-08 |
Family
ID=7628682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00126375A Expired - Lifetime EP1120550B1 (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) | EP1120550B1 (de) |
DE (2) | DE10003142A1 (de) |
ES (1) | ES2239996T3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE29804549U1 (de) * | 1998-03-14 | 1998-07-02 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektromagnetisch betätigbares Gaswechselventil für eine Kolbenbrennkraftmaschine mit pneumatischen Rückstellfedern |
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 DE10003142A patent/DE10003142A1/de not_active Withdrawn
- 2000-12-02 EP EP00126375A patent/EP1120550B1/de not_active Expired - Lifetime
- 2000-12-02 ES ES00126375T patent/ES2239996T3/es not_active Expired - Lifetime
- 2000-12-02 DE DE50010513T patent/DE50010513D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1120550A3 (de) | 2001-12-05 |
ES2239996T3 (es) | 2005-10-16 |
EP1120550A2 (de) | 2001-08-01 |
DE10003142A1 (de) | 2001-08-02 |
DE50010513D1 (de) | 2005-07-14 |
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