EP1169552A1 - Dispositif de commande electromagnetique de soupapes - Google Patents
Dispositif de commande electromagnetique de soupapesInfo
- Publication number
- EP1169552A1 EP1169552A1 EP00917161A EP00917161A EP1169552A1 EP 1169552 A1 EP1169552 A1 EP 1169552A1 EP 00917161 A EP00917161 A EP 00917161A EP 00917161 A EP00917161 A EP 00917161A EP 1169552 A1 EP1169552 A1 EP 1169552A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuators
- valves
- ferro
- pallet
- actuator
- 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
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
- control devices for valves moving linearly along an axis comprising actuators in a number equal to that of the valves, each actuator having a pallet made of ferro-magnetic material fixed to a valve push rod movable in a housing of the actuator by electromagnetic means having at least one coil mounted on a ferromagnetic circuit and having at least one return spring, one end of which bears against the rod.
- Devices of this kind can have two opposing return springs (US patent 4,614,170 or patent application FR 98 12489) or a single spring working alternately in tension and in compression (patent application FR 98 11670).
- the electromagnetic means of an actuator may comprise two coils, the excitation of which tends to move the pallet in opposite directions. They can also - and this solution will generally be preferable for reasons of cost, reduction in size and reduction in the number of electrical connections - use a single coil whose ferro-magnetic circuit has a constitution as it offers, in combination with the pallet, two stable magnetic flux paths corresponding to the valve opening and closing states, respectively (request FR 98 12489 and corresponding EP request).
- Such a device comprises as many actuators as there are valves.
- eight actuators must be placed side by side.
- the power of an actuator is limited, at a given thickness, and this thickness itself is limited because the The distribution of the actuators must be the same as that of the valves.
- the power which can be obtained with individual actuators may prove to be insufficient, at least for the exhaust valves which are the most demanding at high engine load due to the back pressure in the combustion chamber.
- the need for an electrical power connector per actuator is expensive and reduces reliability.
- the invention aims in particular to provide a valve control device for a two-valve engine of the same type per cylinder with reduced bulk and increased reliability.
- the invention proposes for this purpose a device in which the ferro-magnetic circuits of two actuators assigned to two valves of the same type of the same cylinder are contained in a common housing and the coils of the two actuators can therefore be supplied by the through the same power connector.
- This single connector can also be used to transmit measurement signals from a pallet position sensor to the outside.
- the latter proposes a device in which the ferromagnetic circuits of two actuators assigned to two valves of the same type of the same cylinder are merged. Not only does this arrangement reduce the bulk and therefore makes it possible to locally increase the section of iron while taking advantage of the free space between two cylinders, but also it makes it possible to increase the section of the common part which entirely benefits the control of '' only one of the valves when the other remains at rest, for example when the valve oscillation starts.
- the invention is particularly easy to implement in the case of actuators with a single coil for which it is also possible to place sensors of the axial position of the rod and of the pallet, detecting the position of a magnet fixed to the rod, in an area where the magnetic flux created by the coil is always very reduced and does not disturb the operation thanks to the symmetry of the planar lines of force.
- Figure 1 is a top view of a fraction of a control device comprising actuators grouped in pairs in the same housing;
- Figure 2 is a sectional view of a pair of actuators according to a particular embodiment, along a plane passing through the axes of these actuators;
- FIG. 3 is a sectional view of a single coil actuator in section along a plane orthogonal to that of Figure 2 and passing through the axis of the actuator.
- valve actuators are at electromagnetic control and can be a single coil, such as that which will be described later, or two coils, such as that described in patent application FR 98 11670 already mentioned.
- the device partially shown in Figure 1 comprises a common housing 16 of non-magnetic material, for example of light alloy, retaining the ferromagnetic circuits 54 of two adjacent actuators assigned to the same cylinder on the cylinder head of the engine.
- the housing is drilled with holes 56 for the passage of fixing screws.
- the ferromagnetic circuits will generally be separated to allow the individual control of the two valves.
- the four coils of the same torque can be powered by a single connector 58 whose general constitution can be either conventional, or advantageously that described in the French patent application of the same or as the present application, entitled " Power connector and actuator supply device comprising such connectors "of the applicant, however doubled.
- These connectors can be provided to also transfer the position sensor output signals. This arrangement requires less space than mounting the actuators individually and halves the number of connectors.
- the magnetic circuits of two adjacent actuators can be fused and have the constitution shown in FIG. 2, each complete actuator having for example the elements shown in FIG. 3.
- the vertical planes of symmetry of the two coils are more distant from each other than the vertical planes of symmetry of the two pallets so that the flows generated by each coil interfere with each other as little as possible.
- the actuator then has a pallet 22 of prismatic shape, made of ferro-magnetic material, fixed on a rod 24 for driving the valve 50.
- Two return springs 28a and 28b are provided to keep the valve at rest in a position substantially median between the closed position and the full open position.
- One of the springs 28a is compressed between a plate 30 fixed to the rod 24 and an extension of the housing 16.
- the other spring 28b is compressed between a plate 31 fixed to the valve stem and the bottom of the valve well formed in the cylinder head 12.
- the fixed ferromagnetic circuit common to the two actuators has a cross section passing through the axis of the two E-shaped pallets with a middle branch 60 and two external branches 62.
- the lateral branches have a narrower width than that of the branch median which benefits from the fusion of the two magnetic circuits.
- the outer branches can be relatively wide due to the spacing between two cylinders.
- each pallet 22 has beveled edges parallel to the poles of the associated magnetic circuit.
- the pallet has a central boss in the form of a bar which creates or increases an asymmetry of the magnetic circuit and guarantees that the initial direction of movement of the pallet from its rest position will be upwards.
- the presence of the boss reduces the initial reluctance of the circuit because it reduces the air gap at rest, as shown by the arrows diagramming the magnetic flux lines.
- the currents flowing through the two coils carried by the same ferro-magnetic circuit are in opposite directions.
- the current flowing through each coil can be controlled by a computer (not shown) receiving a signal indicating the position of the paddle of a sensor 24. It may in particular be a Hall effect sensor 64 sensitive to a magnetic pad carried by the rod 24.
- the path of the lines of force of the magnetic flux is such that they do not disturb the measurement by a sensor placed in the oplan of FIG. 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
- Electromagnets (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9904472A FR2792031B1 (fr) | 1999-04-09 | 1999-04-09 | Dispositif de commande electromagnetique de soupapes |
| FR9904472 | 1999-04-09 | ||
| PCT/FR2000/000896 WO2000061922A1 (fr) | 1999-04-09 | 2000-04-07 | Dispositif de commande electromagnetique de soupapes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1169552A1 true EP1169552A1 (fr) | 2002-01-09 |
| EP1169552B1 EP1169552B1 (fr) | 2006-11-02 |
Family
ID=9544233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00917161A Expired - Lifetime EP1169552B1 (fr) | 1999-04-09 | 2000-04-07 | Dispositif de commande electromagnetique de soupapes |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6768406B1 (fr) |
| EP (1) | EP1169552B1 (fr) |
| JP (1) | JP2002541674A (fr) |
| KR (1) | KR100714387B1 (fr) |
| AT (1) | ATE344380T1 (fr) |
| DE (1) | DE60031660T2 (fr) |
| ES (1) | ES2273677T3 (fr) |
| FR (1) | FR2792031B1 (fr) |
| WO (1) | WO2000061922A1 (fr) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2827007B1 (fr) * | 2001-07-06 | 2003-10-31 | Peugeot Citroen Automobiles Sa | Dispositif de commande a electroaimant, notamment pour une soupape de moteur a combustion interne |
| FR2870563B1 (fr) * | 2004-05-19 | 2006-06-30 | Peugeot Citroen Automobiles Sa | Dispositif d'actionnement de soupapes |
| WO2007134287A1 (fr) * | 2006-05-12 | 2007-11-22 | Parker-Hannifin Corporation | Dispositif de mesure de déplacements |
| US20080266038A1 (en) * | 2007-04-24 | 2008-10-30 | Eaton Corporation | Solenoid assembly |
| DE102007052253B4 (de) * | 2007-11-02 | 2023-07-06 | Mercedes-Benz Group AG | Ventiltriebvorrichtung |
| DE102008036462B4 (de) | 2008-08-05 | 2023-12-14 | Mercedes-Benz Group AG | Ventiltriebvorrichtung |
| DE202008015980U1 (de) * | 2008-12-03 | 2010-04-29 | Eto Magnetic Gmbh | Elektromagnetische Aktuatorvorrichtung |
| US9846440B2 (en) | 2011-12-15 | 2017-12-19 | Honeywell International Inc. | Valve controller configured to estimate fuel comsumption |
| US8839815B2 (en) | 2011-12-15 | 2014-09-23 | Honeywell International Inc. | Gas valve with electronic cycle counter |
| US9074770B2 (en) | 2011-12-15 | 2015-07-07 | Honeywell International Inc. | Gas valve with electronic valve proving system |
| US8899264B2 (en) | 2011-12-15 | 2014-12-02 | Honeywell International Inc. | Gas valve with electronic proof of closure system |
| US9851103B2 (en) | 2011-12-15 | 2017-12-26 | Honeywell International Inc. | Gas valve with overpressure diagnostics |
| US9995486B2 (en) | 2011-12-15 | 2018-06-12 | Honeywell International Inc. | Gas valve with high/low gas pressure detection |
| US9557059B2 (en) | 2011-12-15 | 2017-01-31 | Honeywell International Inc | Gas valve with communication link |
| US9835265B2 (en) | 2011-12-15 | 2017-12-05 | Honeywell International Inc. | Valve with actuator diagnostics |
| US8905063B2 (en) | 2011-12-15 | 2014-12-09 | Honeywell International Inc. | Gas valve with fuel rate monitor |
| US8947242B2 (en) | 2011-12-15 | 2015-02-03 | Honeywell International Inc. | Gas valve with valve leakage test |
| US10422531B2 (en) | 2012-09-15 | 2019-09-24 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
| US9234661B2 (en) | 2012-09-15 | 2016-01-12 | Honeywell International Inc. | Burner control system |
| EP2868970B1 (fr) | 2013-10-29 | 2020-04-22 | Honeywell Technologies Sarl | Dispositif de régulation |
| US10024439B2 (en) | 2013-12-16 | 2018-07-17 | Honeywell International Inc. | Valve over-travel mechanism |
| 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 |
| US10564062B2 (en) | 2016-10-19 | 2020-02-18 | Honeywell International Inc. | Human-machine interface for gas valve |
| DE102017121949A1 (de) * | 2017-09-21 | 2019-03-21 | Kendrion (Villingen) Gmbh | Stellvorrichtung, sowie Kraftfahrzeug mit einer Stellvorrichtung |
| 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 |
| CN117307286A (zh) * | 2023-11-02 | 2023-12-29 | 广州汽车集团股份有限公司 | 配气系统及车辆 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4779582A (en) * | 1987-08-12 | 1988-10-25 | General Motors Corporation | Bistable electromechanical valve actuator |
| US5548263A (en) * | 1992-10-05 | 1996-08-20 | Aura Systems, Inc. | Electromagnetically actuated valve |
| DE19506566A1 (de) * | 1995-02-24 | 1996-08-29 | Bayerische Motoren Werke Ag | Elektromagnetische Hubventil-Betätigungsvorrichtung |
| DE19518056B4 (de) * | 1995-05-17 | 2005-04-07 | Fev Motorentechnik Gmbh | Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung |
| DE19719299C1 (de) * | 1997-05-07 | 1998-08-20 | Daimler Benz Ag | Betätigungseinrichtung für Gaswechselventile einer Brennkraftmaschine mit elektromagnetischen Aktuatoren |
-
1999
- 1999-04-09 FR FR9904472A patent/FR2792031B1/fr not_active Expired - Fee Related
-
2000
- 2000-04-07 AT AT00917161T patent/ATE344380T1/de not_active IP Right Cessation
- 2000-04-07 ES ES00917161T patent/ES2273677T3/es not_active Expired - Lifetime
- 2000-04-07 DE DE60031660T patent/DE60031660T2/de not_active Expired - Lifetime
- 2000-04-07 JP JP2000610953A patent/JP2002541674A/ja active Pending
- 2000-04-07 WO PCT/FR2000/000896 patent/WO2000061922A1/fr not_active Ceased
- 2000-04-07 KR KR1020017012837A patent/KR100714387B1/ko not_active Expired - Fee Related
- 2000-04-07 US US09/958,137 patent/US6768406B1/en not_active Expired - Lifetime
- 2000-04-07 EP EP00917161A patent/EP1169552B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0061922A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010110727A (ko) | 2001-12-13 |
| KR100714387B1 (ko) | 2007-05-07 |
| ATE344380T1 (de) | 2006-11-15 |
| WO2000061922A1 (fr) | 2000-10-19 |
| US6768406B1 (en) | 2004-07-27 |
| DE60031660D1 (de) | 2006-12-14 |
| ES2273677T3 (es) | 2007-05-16 |
| JP2002541674A (ja) | 2002-12-03 |
| EP1169552B1 (fr) | 2006-11-02 |
| DE60031660T2 (de) | 2007-08-30 |
| FR2792031B1 (fr) | 2001-06-08 |
| FR2792031A1 (fr) | 2000-10-13 |
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