EP0935054A3 - Electromagnetic actuator - Google Patents

Electromagnetic actuator Download PDF

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Publication number
EP0935054A3
EP0935054A3 EP99100674A EP99100674A EP0935054A3 EP 0935054 A3 EP0935054 A3 EP 0935054A3 EP 99100674 A EP99100674 A EP 99100674A EP 99100674 A EP99100674 A EP 99100674A EP 0935054 A3 EP0935054 A3 EP 0935054A3
Authority
EP
European Patent Office
Prior art keywords
magnet
armature
magnetic force
opening
gas exchange
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.)
Withdrawn
Application number
EP99100674A
Other languages
German (de)
French (fr)
Other versions
EP0935054A2 (en
Inventor
Matthias Gramann
Thomas Röckl
Michael Nagel
Rudolf Wilczek
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.)
Conti Temic Microelectronic GmbH
Original Assignee
Temic Telefunken Microelectronic 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 Temic Telefunken Microelectronic GmbH filed Critical Temic Telefunken Microelectronic GmbH
Publication of EP0935054A2 publication Critical patent/EP0935054A2/en
Publication of EP0935054A3 publication Critical patent/EP0935054A3/en
Withdrawn legal-status Critical Current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

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

Abstract

Bei einem bekannten elektromagnetischen Aktuator wird zur Betätigung eines Gaswechselventils (5) ein Anker (1) durch Magnetkraft zwischen den Polflächen (21, 31) eines Öffnermagneten (2) und eines Schließermagneten (3) bewegt. Aufgrund der beim Öffnen des Gaswechselventils (5) gegen den hohen Gasinnendruck in der Brennkammer zu leistenden Arbeit dauert der Öffnungsvorgang länger als der Schließvorgang. Der neue Aktuator soll ein schnelleres Öffnen des Gaswechselventils (5) ermöglichen.In a known electromagnetic actuator is used for actuation a gas exchange valve (5) an armature (1) by magnetic force between the pole faces (21, 31) of an opening magnet (2) and one Closer magnet (3) moves. Because of when you open the gas exchange valve (5) against the high internal gas pressure in the combustion chamber the work to be done takes longer than opening Closing process. The new actuator is designed to open the gas exchange valve faster (5) enable.

Mit einer den Zwischenraum zwischen den Polflächen (21, 31) umschließenden zweiteiligen Verbindungshülse (7) aus einer am Öffnermagneten (2) befestigten ferromagnetischen Teilhülse (70) und einer am Schließermagneten (3) befestigten nichtferromagnetischen Teilhülse (71) wird die Magnetkraft des Öffnermagneten (2) für große Ankerhubweglängen (d0) gegenüber der bei gleicher Ankerhubweglänge (ds) auf den Anker (1) wirkende Magnetkraft des Schließermagneten (3). angehoben.With a two-part connecting sleeve (7) surrounding the space between the pole faces (21, 31), consisting of a ferromagnetic partial sleeve (70) attached to the opening magnet (2) and a non-ferromagnetic partial sleeve (71) attached to the closing magnet (3), the magnetic force of the opening magnet ( 2) for large armature travel lengths (d 0 ) compared to the magnetic force of the closer magnet (3) acting on the armature (1) with the same armature travel length (d s ). raised.

Elektromagnetische Ventilsteuerung in Brennkraftmaschinen.

Figure 00000001
Electromagnetic valve control in internal combustion engines.
Figure 00000001
EP99100674A 1998-02-04 1999-01-15 Electromagnetic actuator Withdrawn EP0935054A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19804225 1998-02-04
DE19804225A DE19804225C1 (en) 1998-02-04 1998-02-04 Electromagnetic actuator for gas changeover valve of internal combustion engine

Publications (2)

Publication Number Publication Date
EP0935054A2 EP0935054A2 (en) 1999-08-11
EP0935054A3 true EP0935054A3 (en) 1999-08-18

Family

ID=7856523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100674A Withdrawn EP0935054A3 (en) 1998-02-04 1999-01-15 Electromagnetic actuator

Country Status (3)

Country Link
US (1) US6037851A (en)
EP (1) EP0935054A3 (en)
DE (1) DE19804225C1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2792109B1 (en) * 1999-04-12 2001-06-01 Schneider Electric Sa ELECTROMAGNET WITH SIMPLIFIED MAGNETIC CIRCUIT
DE19922424C2 (en) * 1999-05-14 2003-04-30 Siemens Ag Electromagnetic actuator
DE19953788A1 (en) * 1999-11-09 2001-05-10 Bosch Gmbh Robert Electromagnetic actuator
DE10029292B4 (en) * 2000-06-14 2005-08-04 Daimlerchrysler Ag Internal combustion engine with electromagnetic valve control
US7255073B2 (en) * 2003-10-14 2007-08-14 Visteon Global Technologies, Inc. Electromechanical valve actuator beginning of stroke damper
US20050076866A1 (en) * 2003-10-14 2005-04-14 Hopper Mark L. Electromechanical valve actuator
WO2005043266A2 (en) * 2003-10-31 2005-05-12 Massachusetts Institute Of Technology Variable reluctance fast positioning system and methods
US7305942B2 (en) * 2005-02-23 2007-12-11 Visteon Global Technologies, Inc. Electromechanical valve actuator
US8037853B2 (en) * 2005-04-19 2011-10-18 Len Development Services Usa, Llc Internal combustion engine with electronic valve actuators and control system therefor
US7270093B2 (en) * 2005-04-19 2007-09-18 Len Development Services Corp. Internal combustion engine with electronic valve actuators and control system therefor
EP1901655B1 (en) * 2005-07-13 2018-12-19 Roche Diabetes Care GmbH Lancet device
CN105900193B (en) * 2014-01-21 2017-11-21 本田技研工业株式会社 Electromagnetic actuators and electromagnetic valve device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074259A (en) * 1990-05-09 1991-12-24 Pavo Pusic Electrically operated cylinder valve
US5080323A (en) * 1988-08-09 1992-01-14 Audi A.G. Adjusting device for gas exchange valves
EP0810350A1 (en) * 1996-05-28 1997-12-03 Toyota Jidosha Kabushiki Kaisha Method of detecting fault in electromagnetically-actuated intake or exhaust valve
DE29620741U1 (en) * 1996-11-29 1998-03-26 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Narrow-build electromagnetic actuator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901210A (en) * 1953-06-29 1959-08-25 Phillips Petroleum Co Electro-magnetic device
US4361309A (en) * 1980-06-23 1982-11-30 Niipondenso Co., Ltd. Electromagnetic actuator
DE3223557A1 (en) * 1982-06-24 1983-12-29 Robert Bosch Gmbh, 7000 Stuttgart ELECTRIC ACTUATOR
DE3826977A1 (en) * 1988-08-09 1990-02-15 Meyer Hans Wilhelm CONTROL DEVICE FOR A GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE
DE3905023A1 (en) * 1989-02-18 1990-08-30 Voith Gmbh J M ELECTROMAGNET WITH A SUBMERSIBLE
JP3186462B2 (en) * 1994-09-22 2001-07-11 トヨタ自動車株式会社 Electromagnetic valve drive for internal combustion engine
DE29604946U1 (en) * 1996-03-16 1997-07-17 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Electromagnetic actuator for a gas exchange valve with valve clearance compensation
US5730091A (en) * 1996-11-12 1998-03-24 Ford Global Technologies, Inc. Soft landing electromechanically actuated engine valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080323A (en) * 1988-08-09 1992-01-14 Audi A.G. Adjusting device for gas exchange valves
US5074259A (en) * 1990-05-09 1991-12-24 Pavo Pusic Electrically operated cylinder valve
EP0810350A1 (en) * 1996-05-28 1997-12-03 Toyota Jidosha Kabushiki Kaisha Method of detecting fault in electromagnetically-actuated intake or exhaust valve
DE29620741U1 (en) * 1996-11-29 1998-03-26 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Narrow-build electromagnetic actuator

Also Published As

Publication number Publication date
DE19804225C1 (en) 1999-05-06
EP0935054A2 (en) 1999-08-11
US6037851A (en) 2000-03-14

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