EP0992658A1 - Elektromagnetischer Ventil-Aktuator - Google Patents
Elektromagnetischer Ventil-Aktuator Download PDFInfo
- Publication number
- EP0992658A1 EP0992658A1 EP99400877A EP99400877A EP0992658A1 EP 0992658 A1 EP0992658 A1 EP 0992658A1 EP 99400877 A EP99400877 A EP 99400877A EP 99400877 A EP99400877 A EP 99400877A EP 0992658 A1 EP0992658 A1 EP 0992658A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pallet
- valve
- core
- actuator according
- ferromagnetic
- 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.)
- Granted
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 to electromagnetic actuators intended to move in translation a valve to bring it alternately in an open position and a position of closing. It finds a particularly important application in the control of the valves of an internal combustion engine, spark or compression ignition.
- Actuators have also already been proposed (US-A-4,614,170) electromagnetic to reduce the above drawbacks, having a pallet of ferromagnetic material attached to the valve stem, elastic return means provided for keep the valve at rest in a middle position between the full open and closed position, and means electromagnetic to alternately bring the valves in both positions.
- Electromagnetic means described in document US-A-4 614 170 have a first electromagnet with ferromagnetic core placed on one side of the pallet and whose excitement attracts the pallet in a direction tending to close the valve and a second electromagnet, placed on the other side of the vane, the excitation of which tends to bring the valve into the full opening position.
- the valve-spring assembly constitutes an oscillating system excited by alternating periodic power supplies of the electromagnets.
- the electromagnet acting on the pallet in the direction of the valve opening begins to be energized while the pallet approaches a location where it sticks to the core of the electromagnet.
- the invention aims in particular to provide an actuator electromagnetic responding better than those previously known to the demands of practice, especially the fact that he has a reduced footprint and connectivity.
- the electromagnetic means include a single coil mounted on a ferromagnetic circuit of constitution as it presents, in combination with the palette, two stable magnetic flux paths corresponding to one and the other at a low (generally zero) air gap value.
- One of the configurations corresponds to full opening and the other at closure.
- the pallet In its initial state, in the middle position, the pallet generally present a position or circuit imbalance magnetic which makes that the direction in which it will be drawn to the first energization of the coil is predetermined. This imbalance can be deliberately caused.
- the elastic return means consist of two springs each placed on one side of the pallet, these two springs can be such as to give the pallet at rest a position in which the force resulting from the supply of the coil is exercised in a determined direction and that they present the same potential compression energy in closed positions and full opening.
- An advantageous way to unbalance magnetic forces exerted up and down is to dissymmetry the flows in the central part by playing on a sheet metal notch profile and / or on a pallet profile.
- the palette may include an axial boss.
- Another way to create an asymmetry consists in giving to the poles of the ferromagnetic circuit and to the palette a shape such that the surfaces in contact for both stable paths are different.
- the single coil actuator is more compact than the previous actuators. Its electrical circuit and its control are simpler and less expensive.
- the actuator 10 shown in Figures 1 to 3 consists of a assembly intended to be mounted on the cylinder head 12 of an engine. he has a housing made up of several parts 14 and 16 stacked and assembled by means not shown, such as screws. These parts are made of non-ferromagnetic material, for light alloy example.
- the housing can be fixed on the cylinder head 12 by means of a shim 20 also made of non-material ferromagnetic.
- the actuator comprises a pallet 22 made of material ferromagnetic, advantageously laminated to reduce losses, fixed on a rod 24 for driving the valve 25.
- a pallet 22 made of material ferromagnetic, advantageously laminated to reduce losses, fixed on a rod 24 for driving the valve 25.
- the rod 24 can be fixed to the pallet by welding and guided by another ring 26 fixed to a annular extension of the part 16.
- valve stem 25 is separated from the rod 24. It is guided by a fixed ring to the cylinder head and can turn in it.
- Two return springs 28a and 28b are provided to maintain the valve at rest in a substantially middle position between the closed position and the full open position.
- a springs 28a is compressed between a plate 30 fixed to the rod 24 and the extension of part 16.
- the other spring 28b is compressed between a plate 31 fixed to the valve stem and the bottom valve well in the cylinder head.
- the distribution game between the lifted rod and the closed valve guarantees tightness.
- the actuator can just as easily be used with a spring unique working in traction / compression and completed with elastic shock absorber ensuring sealing when closing the valve, as indicated in French patent No. 98 11 670.
- the rod can then be in one piece with the valve.
- the housing contains a ferromagnetic material core 36, advantageously laminated, delimiting a ferromagnetic circuit with the pallet, and a coil 38 placed in the core.
- the core represented can be in two complementary parts, in support one against the other in a plane 40 (figure 2) or one holding.
- the constituent sheets of each half of the core are in E shape ( Figures 2 and 3).
- the upper branches 42 engage in the coil 36 which they support by via a mandrel 44.
- the other two branches of each half delimits a volume of movement of the pallet.
- the support of the pallet against the bottom 46 of the volume defines the valve fully open position.
- the ceiling 48 of volume is at a location relative to the valve seat such the air gap is practically zero when the valve is closed.
- a middle notch 49 corresponding to the position of rest of the pallet 22, can be provided in the chamber, length slightly greater than the thickness of the pallet. Above and below the notch, the volume wall leaves no than the clearance required for travel.
- the core can as well be in one piece and wound on an automatic machine, which avoids the presence of an air gap and guarantees the precision of the notches 49.
- the pallet 22 advantageously laminated or made of a material with a high electrical resistivity, has bevelled edges parallel at the poles of the core 36 ( Figure 4).
- the armature is not magnetically saturated in its range of operation and the flow closes mainly through the armature, thanks to the shape of the pole pieces of the core.
- the asymmetry of the flow circuit higher compared to the lower flow circuit is accentuated by different inclinations of the upper polar surfaces 80 and lower 82 of the core, each surface of the pallet in gaze of a pole being parallel to it.
- the pallet 84 has a central boss in the form of bar which increases the asymmetry of the magnetic circuit.
- the boss 84 When the pallet 22 is in the rest position where it is shown in Figure 5 and that a magnetic flux is generated by the coil 38, this flow closes on its way through the boss 84, as indicated by the arrow f, which reduces the length of the air gaps.
- this boss When the pallet sticks against the core, extreme high position, this boss is short-circuited and does not weaken the bonding forces. This provision reduces notably the reluctance in the rest position and increases the ease of launching the device.
- the current flowing through the coil 38 can be controlled by observing the position of the pallet 22 using a position integrated in the device.
- Current pulses in the coil are supplied at times such as, at the time of the application of force, the speed of the pallet has the same sense that the force applied.
- the initial force being of a sign given, as a result of the asymmetry, it suffices to apply a pulse only once per period.
- Figure 6 schematically shows a phase of the launch of the device.
- the pallet is in a position corresponding to the line L, for which the forces exerted by the springs 28a and 28b are balanced. This position is offset from the position L 'for which the electromagnetic force exerted on the pallet 22 by the field created by the coil 38 is zero.
- the first current pulse in the coil 38 causes an elongation of the pallet, which then returns with its own period to a position which generally will be still above that indicated by the line L '.
- the amplitude of the oscillations increases.
- the monitoring of the position signal makes it possible to know at each instant the last duration T which separates two successive zero crossings.
- the senor 52 is connected to a computer 50 which controls the supply of the coil 38 by an amplifier 54.
- This sensor 52 can be carried by the housing 16 and make protruding downwards, so as to detect the approximation of the plate 30, made for this purpose of magnetic material.
- the computer 50 which can be the engine control computer, determine the position reached by the moving crew.
- the sensor 52 also allows, by varying the signal that it provides, to determine the instant at which the amplitude of the oscillation of the moving part brings it into its position extreme.
- the launch can be done in one minimum time thanks to the combination of the position measurement and a pallet setting algorithm which controls the current in the coil so as never to generate forces magnetic braking.
- the invention is susceptible of numerous variants of production.
- the springs 28a and 28b can be placed by example one inside the other to reduce the size of the housing.
- Each coil can consist of a number N of windings greater than 1 (two or three for example) supplied in parallel which divides by N the resistance and increases the total current maximum and what divides the inductance by N. Electric inertia is decreased.
- the dynamics of the engine system are improved.
- the cutting a winding wire does not disable the device.
- the dynamics are improved: we can vary the magnetic field faster, because the ratio inductance / resistance is unchanged while the resistance of each winding is a fraction of the resistance of a coil unique: the maximum current value is higher and, the inductance being weaker, the dynamics are faster.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9812489 | 1998-10-06 | ||
FR9812489A FR2784222B1 (fr) | 1998-10-06 | 1998-10-06 | Actionneur electromagnetique de soupape |
FR9812940 | 1998-10-15 | ||
FR9812940A FR2784712B1 (fr) | 1998-10-15 | 1998-10-15 | Procede et dispositif d'actionnement electromagnetique de soupape |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0992658A1 true EP0992658A1 (de) | 2000-04-12 |
EP0992658B1 EP0992658B1 (de) | 2003-05-21 |
Family
ID=26234581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99400877A Expired - Lifetime EP0992658B1 (de) | 1998-10-06 | 1999-04-09 | Elektromagnetischer Ventil-Aktuator |
Country Status (6)
Country | Link |
---|---|
US (1) | US6651954B1 (de) |
EP (1) | EP0992658B1 (de) |
JP (1) | JP2004506826A (de) |
KR (1) | KR20010080034A (de) |
DE (1) | DE69908057T2 (de) |
WO (1) | WO2000020731A1 (de) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2808375A1 (fr) * | 2000-04-27 | 2001-11-02 | Sagem | Actionneur electromagnetique de soupape, de type monobobine |
EP1160423A2 (de) * | 2000-06-02 | 2001-12-05 | Nissan Motor Co., Ltd. | Ventilsteuerungssystem für elektromagnetische Ventile |
FR2812121A1 (fr) * | 2000-07-21 | 2002-01-25 | Renault | Actionneur lineaire electromagnetique de soupape comportant une seule bobine |
FR2818432A1 (fr) * | 2000-12-20 | 2002-06-21 | Sagem | Actionneur electromagnetique de soupape de moteur a combustion interne |
EP1162349A3 (de) * | 2000-06-06 | 2003-05-14 | Nissan Motor Co., Ltd. | Vorrichtung und Verfahren zur Steuerung einer elektromagnetisch betriebenen Ventilanordnung |
US6724606B2 (en) | 2002-03-08 | 2004-04-20 | Joseph B. Seale | Single-winding dual-latching valve actuation solenoid |
FR2849466A1 (fr) | 2002-12-27 | 2004-07-02 | Renault Sa | Ationneur lineaire de soupape comportant un aimant mobile dans un entrefer magnetique |
US9645584B2 (en) | 2014-09-17 | 2017-05-09 | Honeywell International Inc. | Gas valve with electronic health monitoring |
US9657946B2 (en) | 2012-09-15 | 2017-05-23 | Honeywell International Inc. | Burner control system |
US9683674B2 (en) | 2013-10-29 | 2017-06-20 | Honeywell Technologies Sarl | Regulating device |
US9835265B2 (en) | 2011-12-15 | 2017-12-05 | Honeywell International Inc. | Valve with actuator diagnostics |
US9841122B2 (en) | 2014-09-09 | 2017-12-12 | Honeywell International Inc. | Gas valve with electronic valve proving system |
US9846440B2 (en) | 2011-12-15 | 2017-12-19 | Honeywell International Inc. | Valve controller configured to estimate fuel comsumption |
US9851103B2 (en) | 2011-12-15 | 2017-12-26 | Honeywell International Inc. | Gas valve with overpressure diagnostics |
US10422531B2 (en) | 2012-09-15 | 2019-09-24 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
US10503181B2 (en) | 2016-01-13 | 2019-12-10 | Honeywell International Inc. | Pressure regulator |
CN112178213A (zh) * | 2020-09-30 | 2021-01-05 | 赵鑫 | 高温高压环境电磁阀 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2809487B1 (fr) * | 2000-05-23 | 2002-08-16 | Sagem | Capteur de position axiale pour une tige mobile axialement et actionneur electromagnetique de soupape qui en est equipe |
US8083206B2 (en) * | 2008-07-08 | 2011-12-27 | Caterpillar Inc. | Precision ground armature assembly for solenoid actuator and fuel injector using same |
US8839815B2 (en) | 2011-12-15 | 2014-09-23 | Honeywell International Inc. | Gas valve with electronic cycle counter |
US9557059B2 (en) | 2011-12-15 | 2017-01-31 | Honeywell International Inc | Gas valve with communication link |
US8899264B2 (en) | 2011-12-15 | 2014-12-02 | Honeywell International Inc. | Gas valve with electronic proof of closure system |
US8905063B2 (en) | 2011-12-15 | 2014-12-09 | Honeywell International Inc. | Gas valve with fuel rate monitor |
US9074770B2 (en) | 2011-12-15 | 2015-07-07 | Honeywell International Inc. | Gas valve with electronic valve proving system |
US9995486B2 (en) | 2011-12-15 | 2018-06-12 | Honeywell International Inc. | Gas valve with high/low gas pressure detection |
US8947242B2 (en) | 2011-12-15 | 2015-02-03 | Honeywell International Inc. | Gas valve with valve leakage test |
US10024439B2 (en) | 2013-12-16 | 2018-07-17 | Honeywell International Inc. | Valve over-travel mechanism |
US9502167B1 (en) | 2015-11-18 | 2016-11-22 | Hamilton Sundstrand Corporation | High temperature electromagnetic actuator |
US10564062B2 (en) | 2016-10-19 | 2020-02-18 | Honeywell International Inc. | Human-machine interface for gas valve |
US11073281B2 (en) | 2017-12-29 | 2021-07-27 | Honeywell International Inc. | Closed-loop programming and control of a combustion appliance |
US10697815B2 (en) | 2018-06-09 | 2020-06-30 | Honeywell International Inc. | System and methods for mitigating condensation in a sensor module |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19518056A1 (de) * | 1995-05-17 | 1996-11-21 | Fev Motorentech Gmbh & Co Kg | Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung |
DE19718038C1 (de) * | 1997-04-29 | 1998-05-07 | Daimler Benz Ag | Elektromagnetischer Aktuator für Gaswechselventile einer Brennkraftmaschine |
JPH10196328A (ja) * | 1997-01-10 | 1998-07-28 | Satoshi Yamada | 磁力で開閉するエンジンのバルブ |
DE19712064A1 (de) * | 1997-03-24 | 1998-10-01 | Braunewell Markus | Elektromagnetischer Antrieb |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB779364A (en) * | 1954-09-30 | 1957-07-17 | Welding Engineers | Treatment of plastic materials |
IL54107A (en) * | 1978-02-22 | 1981-06-29 | Yeda Res & Dev | Electromagnetic linear motion devices |
CA2092998C (en) * | 1991-07-30 | 1995-12-05 | J. David Schwitalla | Variable gain servo assist |
US5548263A (en) * | 1992-10-05 | 1996-08-20 | Aura Systems, Inc. | Electromagnetically actuated valve |
US5515818A (en) * | 1993-12-15 | 1996-05-14 | Machine Research Corporation Of Chicago | Electromechanical variable valve actuator |
US5636601A (en) * | 1994-06-15 | 1997-06-10 | Honda Giken Kogyo Kabushiki Kaisha | Energization control method, and electromagnetic control system in electromagnetic driving device |
JP3186462B2 (ja) * | 1994-09-22 | 2001-07-11 | トヨタ自動車株式会社 | 内燃機関の電磁式弁駆動装置 |
US5730091A (en) * | 1996-11-12 | 1998-03-24 | Ford Global Technologies, Inc. | Soft landing electromechanically actuated engine valve |
US5961097A (en) * | 1996-12-17 | 1999-10-05 | Caterpillar Inc. | Electromagnetically actuated valve with thermal compensation |
DE29712502U1 (de) * | 1997-07-15 | 1997-09-18 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Elektromagnetischer Aktuator mit Gehäuse |
FR2784712B1 (fr) * | 1998-10-15 | 2001-09-14 | Sagem | Procede et dispositif d'actionnement electromagnetique de soupape |
FR2808375B1 (fr) * | 2000-04-27 | 2002-09-06 | Sagem | Actionneur electromagnetique de soupape, de type monobobine |
-
1999
- 1999-04-09 EP EP99400877A patent/EP0992658B1/de not_active Expired - Lifetime
- 1999-04-09 DE DE69908057T patent/DE69908057T2/de not_active Expired - Fee Related
- 1999-10-04 JP JP2000574813A patent/JP2004506826A/ja not_active Withdrawn
- 1999-10-04 WO PCT/FR1999/002356 patent/WO2000020731A1/fr not_active Application Discontinuation
- 1999-10-04 US US09/806,711 patent/US6651954B1/en not_active Expired - Fee Related
- 1999-10-04 KR KR1020017004397A patent/KR20010080034A/ko not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19518056A1 (de) * | 1995-05-17 | 1996-11-21 | Fev Motorentech Gmbh & Co Kg | Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung |
JPH10196328A (ja) * | 1997-01-10 | 1998-07-28 | Satoshi Yamada | 磁力で開閉するエンジンのバルブ |
DE19712064A1 (de) * | 1997-03-24 | 1998-10-01 | Braunewell Markus | Elektromagnetischer Antrieb |
DE19718038C1 (de) * | 1997-04-29 | 1998-05-07 | Daimler Benz Ag | Elektromagnetischer Aktuator für Gaswechselventile einer Brennkraftmaschine |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 098, no. 012 31 October 1998 (1998-10-31) * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2808375A1 (fr) * | 2000-04-27 | 2001-11-02 | Sagem | Actionneur electromagnetique de soupape, de type monobobine |
EP1160423A2 (de) * | 2000-06-02 | 2001-12-05 | Nissan Motor Co., Ltd. | Ventilsteuerungssystem für elektromagnetische Ventile |
EP1160423A3 (de) * | 2000-06-02 | 2003-05-14 | Nissan Motor Co., Ltd. | Ventilsteuerungssystem für elektromagnetische Ventile |
EP1162349A3 (de) * | 2000-06-06 | 2003-05-14 | Nissan Motor Co., Ltd. | Vorrichtung und Verfahren zur Steuerung einer elektromagnetisch betriebenen Ventilanordnung |
FR2812121A1 (fr) * | 2000-07-21 | 2002-01-25 | Renault | Actionneur lineaire electromagnetique de soupape comportant une seule bobine |
FR2818432A1 (fr) * | 2000-12-20 | 2002-06-21 | Sagem | Actionneur electromagnetique de soupape de moteur a combustion interne |
US6724606B2 (en) | 2002-03-08 | 2004-04-20 | Joseph B. Seale | Single-winding dual-latching valve actuation solenoid |
FR2849466A1 (fr) | 2002-12-27 | 2004-07-02 | Renault Sa | Ationneur lineaire de soupape comportant un aimant mobile dans un entrefer magnetique |
US9835265B2 (en) | 2011-12-15 | 2017-12-05 | Honeywell International Inc. | Valve with actuator diagnostics |
US9851103B2 (en) | 2011-12-15 | 2017-12-26 | Honeywell International Inc. | Gas valve with overpressure diagnostics |
US9846440B2 (en) | 2011-12-15 | 2017-12-19 | Honeywell International Inc. | Valve controller configured to estimate fuel comsumption |
US10422531B2 (en) | 2012-09-15 | 2019-09-24 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
US9657946B2 (en) | 2012-09-15 | 2017-05-23 | Honeywell International Inc. | Burner control system |
US11421875B2 (en) | 2012-09-15 | 2022-08-23 | Honeywell International Inc. | Burner control system |
US9683674B2 (en) | 2013-10-29 | 2017-06-20 | Honeywell Technologies Sarl | Regulating device |
US9841122B2 (en) | 2014-09-09 | 2017-12-12 | Honeywell International Inc. | Gas valve with electronic valve proving system |
US9645584B2 (en) | 2014-09-17 | 2017-05-09 | Honeywell International Inc. | Gas valve with electronic health monitoring |
US10503181B2 (en) | 2016-01-13 | 2019-12-10 | Honeywell International Inc. | Pressure regulator |
CN112178213A (zh) * | 2020-09-30 | 2021-01-05 | 赵鑫 | 高温高压环境电磁阀 |
CN112178213B (zh) * | 2020-09-30 | 2022-05-06 | 扬州苏油油成商贸实业有限公司 | 高温高压环境电磁阀 |
Also Published As
Publication number | Publication date |
---|---|
JP2004506826A (ja) | 2004-03-04 |
US6651954B1 (en) | 2003-11-25 |
WO2000020731A9 (fr) | 2003-03-06 |
KR20010080034A (ko) | 2001-08-22 |
DE69908057D1 (de) | 2003-06-26 |
EP0992658B1 (de) | 2003-05-21 |
WO2000020731A1 (fr) | 2000-04-13 |
DE69908057T2 (de) | 2004-03-18 |
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