EP2510528A1 - Electromagnet drive for a valve - Google Patents
Electromagnet drive for a valveInfo
- Publication number
- EP2510528A1 EP2510528A1 EP10784464A EP10784464A EP2510528A1 EP 2510528 A1 EP2510528 A1 EP 2510528A1 EP 10784464 A EP10784464 A EP 10784464A EP 10784464 A EP10784464 A EP 10784464A EP 2510528 A1 EP2510528 A1 EP 2510528A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- core
- adjusting
- coil
- adjusting screw
- 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- Withdrawn
Links
- 230000035515 penetration Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- 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
- H01F7/081—Magnetic constructions
Definitions
- the invention relates to an electromagnetic drive for a valve having a housing with at least one electromagnetic circuit, which is composed of a wound on a coil carrier coil, an armature, at least one core and at least one magnetizable return device, wherein the armature is movably mounted between two end positions and at least indirectly acting on a piston member, wherein means are provided which fix the armature in the non-energized state, wherein energizing the coil causes movement of the armature in the first or the second end position, wherein means are provided for adjusting the magnetic force.
- DE 41 10 003 C1 describes an electromagnetic drive for a pneumatic pressure transducer. Due to component tolerances, or a certain choice of materials, there is inevitably a scattering of the magnetic force, which makes an adjustment of the magnetic force after mounting the solenoid drive necessary.
- DE 41 10 003 C1 shows an adjustment in which a fine adjustment of the magnetic force can be made by an adjusting screw in a likewise adjustable iron core of the solenoid drive.
- a disadvantage of this type of adjustment is that this fine adjustment has only a very limited screw-in length and this also does not act linear.
- the means for adjusting have an adjusting screw, which influences the course of the magnetic field lines and which is insertable into a Justierbohrung the return device or the core in the direction of the armature, wherein the return device or the core in the region of the Justierbohrung has a substantially circumferential recess on the side facing the coil.
- the number of magnetic field lines in the region of the transition to the armature can be increased in a simple manner and thus the magnetic force can be directly influenced, wherein the recess represents a scattering of the magnetic field lines and causes a weakening of the field line density in the edge region.
- the recess can be a groove whose penetration depth increases substantially linearly, at least on the side directed towards the armature.
- a montagetechnisch favorable structure results from the fact that the core is provided at the end remote from the piston member of the solenoid drive and has the Justierbohrung. It is also advantageous if the core has an adjustable stop element which cooperates with the armature.
- the return device may have a plain bearing bush.
- the adjusting screw is arranged in the adjusting bore via a thread or a knurling. Another manufacturing advantage is obtained when the core has a through hole into which both the adjusting screw and the stop element can be inserted.
- a grub screw can be used in a particularly advantageous manner.
- Figure 2 is a schematic sectional view of an electromagnetic actuator according to the invention with the adjusting screw in a second position.
- Figure 1 shows a schematically illustrated inventive solenoid valve 1, which acts in the present embodiment on an armature 6, which is connected directly or indirectly with a piston member 1 1, which is designed here as a pressure control valve.
- armature 6 which is connected directly or indirectly with a piston member 1 1, which is designed here as a pressure control valve.
- piston member 1 which is designed here as a pressure control valve.
- the oil pressure regulator like an on-off valve, has connections for the control pressure (p2) and the oil sump (pO). Compared to the on-off valve, the pressure regulator has an additional connection for the delivery pressure (p1) at the lower end.
- This pressure (p1) acts on the piston member 1 1 and has the function of a pressure feedback, as in regulators known as control feedback.
- Magnetic force and pressure (p1) act in the direction and sum against a spring. If the pressure regulator is correctly designed, the armature 6 should be moved against the spring force by the sum of magnetic force and compressive force (p1). In this case, the armature 6 should release the transverse bores more or less, thus varying the control pressure. All in all, this strategy can be used to achieve a riper-like behavior.
- the electromagnetic drive 1 a housing 2 with an electromagnetic circuit 3, wherein a coil 5 is wound on a bobbin 4. Furthermore, a core 7 which is arranged at the end of the electromagnetic drive 1 facing away from the valve closing element 11 is provided which is fastened in the coil carrier 4 in a return device 8 via latching hooks (not shown).
- the return device 8 consists in a known manner essentially of three return plates, of which only two namely 17, 18 are shown.
- the armature 6 is fixed in a first, upper end position 9. This fixation is achieved in the present case by the spring force of a spring 12.
- a diaphragm with a spring force is used at a suitable location, which would have the additional advantage that the electromagnetic drive is protected against contamination.
- the movable armature 6 in the axial direction is mounted in a housing part 19 via a plain bearing bush 15, in the present exemplary embodiment a DU bushing.
- a fine adjustment of the electromagnetic drive 1 is possible via an adjusting screw 13 in an adjusting bore 20.
- the adjusting screw 13 which is arranged via a thread or a knurling in the core 7, are moved in the axial direction of the solenoid drive 1.
- the maximum magnetic force is set by the position of the adjusting screw. Unscrewing the adjusting screw 13 will result in a reduction in the number of magnetic field lines in the core, as shown in Figure 2, and thus significantly reduce the magnetic force.
- the armature 6 has a pressure equalization hole.
- the electromagnetic drive 1 can be covered by a cover not shown here in the region of the core 7.
- welds can be made in the region of the transition between the adjusting screw 13 and the core 7.
- a fixation by means of pins is conceivable.
- the adjusting screw 13 does not necessarily have to be provided with a thread or a knurling. Also, it may be designed as a grub screw which is insertable into a through bore of the return device 8. Also, of course, an adjustable in the electromagnetic drive core 7 may be provided, whereby a coarse adjustment of the magnetic force is made possible.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009057131A DE102009057131A1 (en) | 2009-12-08 | 2009-12-08 | Electromagnetic actuator for a valve |
PCT/EP2010/066924 WO2011069759A1 (en) | 2009-12-08 | 2010-11-05 | Electromagnet drive for a valve |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2510528A1 true EP2510528A1 (en) | 2012-10-17 |
Family
ID=43608166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10784464A Withdrawn EP2510528A1 (en) | 2009-12-08 | 2010-11-05 | Electromagnet drive for a valve |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120242437A1 (en) |
EP (1) | EP2510528A1 (en) |
DE (1) | DE102009057131A1 (en) |
WO (1) | WO2011069759A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010055025A1 (en) * | 2010-12-17 | 2012-06-21 | Pierburg Gmbh | Solenoid valve |
US10400676B2 (en) | 2013-07-01 | 2019-09-03 | United Technologies Corporation | Enhanced APU operability |
DE102019006999A1 (en) * | 2019-10-09 | 2021-04-15 | Hydac Fluidtechnik Gmbh | Actuator |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5110087A (en) * | 1990-06-25 | 1992-05-05 | Borg-Warner Automotive Electronic & Mechanical Systems Corporation | Variable force solenoid hydraulic control valve |
DE4023826A1 (en) * | 1990-07-27 | 1992-01-30 | Bosch Gmbh Robert | METHOD FOR ADJUSTING A VALVE AND VALVE |
DE4110003C1 (en) | 1991-03-27 | 1992-07-16 | Pierburg Gmbh, 4040 Neuss, De | Electromagnetic pressure transducer for pneumatic control of motor vehicle - has aperture set by adjustable iron@ core having opening for receiving plunger |
DE20100950U1 (en) * | 2001-01-19 | 2002-05-23 | Robert Bosch Gmbh, 70469 Stuttgart | Electromagnetic actuator |
DE50306223D1 (en) * | 2002-11-14 | 2007-02-15 | Woco Industrietechnik Gmbh | DIVE ANCHOR SYSTEM WITH ADJUSTABLE MAGNETIC FLOW |
DE102009032367B4 (en) * | 2009-07-08 | 2011-04-28 | Pierburg Gmbh | Electromagnetic actuator for a valve |
-
2009
- 2009-12-08 DE DE102009057131A patent/DE102009057131A1/en not_active Ceased
-
2010
- 2010-11-05 EP EP10784464A patent/EP2510528A1/en not_active Withdrawn
- 2010-11-05 WO PCT/EP2010/066924 patent/WO2011069759A1/en active Application Filing
- 2010-11-05 US US13/514,053 patent/US20120242437A1/en not_active Abandoned
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2011069759A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20120242437A1 (en) | 2012-09-27 |
WO2011069759A1 (en) | 2011-06-16 |
DE102009057131A1 (en) | 2011-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20120418 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20170927 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20180605 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20181016 |