WO2000070195A1 - Elektromechanischer stellantrieb - Google Patents
Elektromechanischer stellantrieb Download PDFInfo
- Publication number
- WO2000070195A1 WO2000070195A1 PCT/DE2000/001483 DE0001483W WO0070195A1 WO 2000070195 A1 WO2000070195 A1 WO 2000070195A1 DE 0001483 W DE0001483 W DE 0001483W WO 0070195 A1 WO0070195 A1 WO 0070195A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- armature
- actuator according
- electromagnet
- actuator
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8225—Position or extent of motion indicator
- Y10T137/8242—Electrical
Definitions
- the invention relates to an electromechanical actuator, in particular for a gas exchange valve of an internal combustion engine.
- the object of the invention is to develop the known electromechanical actuator so that a fast
- Opening and closing gas exchange valves of an internal combustion engine is made possible, while at the same time the energy requirement required for this is kept low.
- the invention is characterized in that the shaft of the armature, which is designed as a hollow body, has a significantly lower mass than a solidly designed shaft. As a result, the mass of the armature to be moved is reduced and therefore must be only a small amount of force is required to move the anchor plate from one anchor surface to the other.
- FIG. 1 shows an arrangement of an actuator and a control device in an internal combustion engine
- Figure 2 shows a cross section through the anchor according to a first embodiment of the anchor
- An internal combustion engine (FIG. 1) comprises an actuator which acts on a gas exchange valve and which is arranged in a cylinder head 31 of the internal combustion engine.
- the gas exchange valve 2 is designed either as an outlet valve or as an inlet valve.
- the gas exchange valve 2 has a valve stem 21 and a plate 22.
- the actuator 1 has a housing 11 in which a first and a second electromagnet are arranged.
- the first electromagnet has a first core 12 which is provided with a first coil 13.
- the second electromagnet has a second core 14 which is provided with a second coil 15.
- An armature is provided, the armature plate of which is movably arranged in the housing 11 between a first contact surface 15a of the first electromagnet and a second contact surface 15b of the second electromagnet.
- the armature plate 16 is thus movable between a closed position S ma ⁇ s and an open position S max o is mechanically connectable.
- a first return means 18a and a second return means 18b, preferably as springs are formed, bias the anchor plate 16 into the predetermined rest position S 0 .
- a sensor 19b of a position sensor is preferably arranged on or in the actuator 1 in such a way that it directly or indirectly detects the position of the armature plate 16 and the armature shaft 17.
- the actuator 1 is rigidly connected to the cylinder head 31 of the internal combustion engine.
- the intake passage 32 and a cylinder 33 with a piston 34 are provided in the internal combustion engine.
- the piston 34 is coupled to a crankshaft 36 via a connecting rod.
- a control device 4 which detects the signals from sensors which are designed, for example, as the position sensor and / or a speed sensor and / or a
- the shaft 17 (FIG. 2) of the armature is designed as a hollow body. For this purpose, it has a cylindrical bore which forms a cavity 17a.
- the shaft 17 thus has a low mass, but still has a high rigidity in order to ensure stable guidance of the anchor plate.
- a sensor 19a is arranged in the region of a free end of the shaft 17.
- the encoder 19a is preferably a permanent magnet which is assigned to the position sensor.
- the pickup 19b is preferably a magnetoresistive element, preferably a giant magnetoresistive element. A particularly simple and secure fixation of the encoder 19a is ensured by flanging the free end in an area 19c.
- the cavity 17a of the anchor shaft 17 can also be formed only in a partial area along the longitudinal axis of the shaft. B. only in the area in which the encoder 19a is received.
- a further reduction in the moving masses of the actuator 1 is achieved by forming the anchor plate 16 from a cobalt-iron alloy.
- the cores 12, 14 of the electromagnets then preferably also consist of the cobalt-iron alloy.
- the alloy has, for example, between 17% and 50% by weight cobalt.
- the cobalt-iron alloy has a significantly higher electrical resistance than, for example, iron (the electrical resistance is approximately four times as high). This reduces the eddy current losses in the armature.
- the cobalt-iron alloy has the advantage that a magnetic induction of approximately 2.3 Tesla achieves saturation which is approximately 15% higher than that of silicon-iron alloys.
- the armature and the core can be reduced, since in this case the dimensioning of the core and the armature is significantly influenced by that during the installation of the armature on one of the contact surfaces 15a, 15b holding force to be applied.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Valve Device For Special Equipments (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000618590A JP2002544758A (ja) | 1999-05-14 | 2000-05-11 | エレクトロメカニカルアクチュエータ |
EP00938542A EP1179120B1 (de) | 1999-05-14 | 2000-05-11 | Elektromechanischer stellantrieb |
DE50001718T DE50001718D1 (de) | 1999-05-14 | 2000-05-11 | Elektromechanischer stellantrieb |
US09/993,037 US6543477B2 (en) | 1999-05-14 | 2001-11-14 | Electromechanical actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19922423A DE19922423A1 (de) | 1999-05-14 | 1999-05-14 | Elektromechanischer Stellantrieb |
DE19922423.4 | 1999-05-14 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/993,037 Continuation US6543477B2 (en) | 1999-05-14 | 2001-11-14 | Electromechanical actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000070195A1 true WO2000070195A1 (de) | 2000-11-23 |
Family
ID=7908178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/001483 WO2000070195A1 (de) | 1999-05-14 | 2000-05-11 | Elektromechanischer stellantrieb |
Country Status (5)
Country | Link |
---|---|
US (1) | US6543477B2 (de) |
EP (1) | EP1179120B1 (de) |
JP (1) | JP2002544758A (de) |
DE (2) | DE19922423A1 (de) |
WO (1) | WO2000070195A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100437122C (zh) * | 2002-02-20 | 2008-11-26 | 伊斯梅卡半导体控股公司 | 带有接触力控制机构的接触致动器 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3927043B2 (ja) * | 2002-02-13 | 2007-06-06 | 株式会社山武 | フィードバック機構およびバルブポジショナ |
SE0202336D0 (sv) * | 2002-07-30 | 2002-07-30 | Siemens Elema Ab | Valve assembly |
JP4551698B2 (ja) * | 2004-05-28 | 2010-09-29 | 株式会社小松製作所 | 磁界形成デバイス及びこれを用いた変位センサ |
WO2006086549A1 (en) * | 2005-02-09 | 2006-08-17 | Baker Hughes Incorporated | Electromagmetic actuator |
US20100140519A1 (en) * | 2008-12-04 | 2010-06-10 | General Electric Company | Electromagnetic actuators |
DE102009040051B4 (de) * | 2009-09-03 | 2014-05-08 | Siemens Aktiengesellschaft | Freikolbenmaschine mit magnetischer Lagerung des Kolbens |
US20120227690A1 (en) * | 2011-03-09 | 2012-09-13 | Giovanni Ferro | Electronic Engine Control Unit And Method Of Operation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3928066A1 (de) * | 1989-08-25 | 1991-02-28 | Binder Magnete | Vorrichtung zur elektromagnetischen steuerung eines gaswechsel-ventils einer hubkolben-brennkraftmaschine |
DE19610468A1 (de) * | 1995-08-08 | 1997-02-13 | Fev Motorentech Gmbh & Co Kg | Verfahren zur lastabhängigen Steuerung der Gaswechselventile an einer Kolbenbrennkraftmaschine |
DE29712502U1 (de) | 1997-07-15 | 1997-09-18 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektromagnetischer Aktuator mit Gehäuse |
DE19706106A1 (de) * | 1997-02-17 | 1998-08-27 | Siemens Ag | Ventileinrichtung eines Verbrennungsmotors |
US5818680A (en) * | 1995-05-17 | 1998-10-06 | Fev Motorentechnik Gmbh & Co. Kg | Apparatus for controlling armature movements in an electromagnetic circuit |
DE19745522A1 (de) * | 1997-10-15 | 1999-04-22 | Daimler Chrysler Ag | Vorrichtung zur Betätigung eines Gaswechselventiles einer Hubkolbenbrennkraftmaschine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6901404U (de) * | 1969-01-05 | 1969-06-26 | Josef Hellrung | Hosenbund-zugentlastung fuer autofahrer |
DE3513107A1 (de) * | 1985-04-12 | 1986-10-16 | Fleck, Andreas, 2000 Hamburg | Elektromagnetisch arbeitende stelleinrichtung |
JPH03183738A (ja) | 1989-09-08 | 1991-08-09 | Toshiba Corp | 希土類コバルト系超磁歪合金 |
US5144977A (en) * | 1991-06-20 | 1992-09-08 | Dresser Industries, Inc. | Fluid valve with actuation sensor |
DE4207275A1 (de) * | 1992-03-07 | 1993-09-09 | Kloeckner Humboldt Deutz Ag | Elektromagnetischer stellantrieb |
US5617417A (en) | 1994-09-07 | 1997-04-01 | Stratacom, Inc. | Asynchronous transfer mode communication in inverse multiplexing over multiple communication links |
TW506498U (en) * | 1996-12-01 | 2002-10-11 | Tadahiro Ohmi | Fluid control valve and fluid supply/exhaust system |
US6002670A (en) | 1997-12-12 | 1999-12-14 | Nortel Networks Corporation | Optimization and recovery techniques in IMA networks |
NO306038B1 (no) | 1998-02-02 | 1999-09-06 | Telenor Forskning Og Utvikling | Invers-multipleksing over eksisterende telefon-tilgangslinjer |
-
1999
- 1999-05-14 DE DE19922423A patent/DE19922423A1/de not_active Withdrawn
-
2000
- 2000-05-11 DE DE50001718T patent/DE50001718D1/de not_active Expired - Lifetime
- 2000-05-11 EP EP00938542A patent/EP1179120B1/de not_active Expired - Lifetime
- 2000-05-11 WO PCT/DE2000/001483 patent/WO2000070195A1/de active IP Right Grant
- 2000-05-11 JP JP2000618590A patent/JP2002544758A/ja active Pending
-
2001
- 2001-11-14 US US09/993,037 patent/US6543477B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3928066A1 (de) * | 1989-08-25 | 1991-02-28 | Binder Magnete | Vorrichtung zur elektromagnetischen steuerung eines gaswechsel-ventils einer hubkolben-brennkraftmaschine |
US5818680A (en) * | 1995-05-17 | 1998-10-06 | Fev Motorentechnik Gmbh & Co. Kg | Apparatus for controlling armature movements in an electromagnetic circuit |
DE19610468A1 (de) * | 1995-08-08 | 1997-02-13 | Fev Motorentech Gmbh & Co Kg | Verfahren zur lastabhängigen Steuerung der Gaswechselventile an einer Kolbenbrennkraftmaschine |
DE19706106A1 (de) * | 1997-02-17 | 1998-08-27 | Siemens Ag | Ventileinrichtung eines Verbrennungsmotors |
DE29712502U1 (de) | 1997-07-15 | 1997-09-18 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektromagnetischer Aktuator mit Gehäuse |
DE19745522A1 (de) * | 1997-10-15 | 1999-04-22 | Daimler Chrysler Ag | Vorrichtung zur Betätigung eines Gaswechselventiles einer Hubkolbenbrennkraftmaschine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100437122C (zh) * | 2002-02-20 | 2008-11-26 | 伊斯梅卡半导体控股公司 | 带有接触力控制机构的接触致动器 |
Also Published As
Publication number | Publication date |
---|---|
DE19922423A1 (de) | 2000-11-30 |
US20020059956A1 (en) | 2002-05-23 |
EP1179120B1 (de) | 2003-04-09 |
DE50001718D1 (de) | 2003-05-15 |
EP1179120A1 (de) | 2002-02-13 |
JP2002544758A (ja) | 2002-12-24 |
US6543477B2 (en) | 2003-04-08 |
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