EP1981745A1 - Solenoid valve - Google Patents
Solenoid valveInfo
- Publication number
- EP1981745A1 EP1981745A1 EP06830292A EP06830292A EP1981745A1 EP 1981745 A1 EP1981745 A1 EP 1981745A1 EP 06830292 A EP06830292 A EP 06830292A EP 06830292 A EP06830292 A EP 06830292A EP 1981745 A1 EP1981745 A1 EP 1981745A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- return spring
- solenoid valve
- centering
- centering means
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
-
- 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
Definitions
- the invention relates to a solenoid valve according to the preamble of independent claim 1.
- a conventional solenoid valve, in particular for a hydraulic unit, which is used for example in an anti-lock braking system (ABS) or a traction control system (ASR system) or an electronic stability program system (ESP system) is shown in Figure 7.
- the conventional normally open solenoid valve 100 comprises, in addition to a magnet assembly, not shown, a valve cartridge which comprises a capsule 106, a valve insert 101, a plunger 102, a return spring 103 and an armature 107.
- the capsule 106 and the valve core 101 of the valve cartridge are joined together by pressing and by a sealing weld 108, the valve cartridge is hydraulically sealed from the atmosphere.
- valve core 101 receives the pressure forces occurring in the hydraulic system and forwards them via a caulking flange 109 to a caulking region, not shown, on a fluid block.
- valve core 101 receives the so-called valve body 104, which comprises a valve seat 110, in which the plunger 102 is sealingly immersed to implement the sealing function of the solenoid valve 100.
- the plunger 102 and the return spring 103 are guided in the valve core 101, wherein the plunger 102 is guided in a plunger guide 111 and the return spring 103 is radially guided and centered at one end on the plunger 102 and the other End axially rests on the valve body 104.
- the flow path of the fluid through the solenoid valve is shown schematically by an arrow chain 105.
- the spring force of the return spring 103 acts in the region of the flow forces, which act on the turns of the return spring 103 due to the flow. This can lead to an undesirable influence of the spring behavior by the flow. So it can, for example, to lift the return spring 103 of her Pad on the valve body 104 come, which may be associated with a corresponding (force) effect on the valve stem 102 and an undesirable influence on the valve function.
- the solenoid valve according to the invention with the features of independent claim 1 has the advantage that centering means are provided, which are arranged in the region of a return spring on a valve core, that the return spring is centered and stabilized. This can be prevented in an advantageous manner that flow forces acting on the turns of the return spring can lead to a lateral breaking of the return spring, or the return spring can lift off a support or the turns of the return spring relative to each other in motion or in vibrations can offset. In particular, centered and stabilized by the centering a only axially fitting to a valve body spring end, without affecting the mountability and adjustability of the solenoid valve negative.
- the centering means comprise at least one axially extending centering web, which is arranged in an inner bore of the valve core.
- the return spring can be guided over a longer distance, for example, so that the return spring is advantageously centered and stabilized almost over the entire length.
- the at least one axial centering web has a guide groove adapted to the diameter of the return spring, the cross-sectional shape of which preferably corresponds to a circular section.
- the guidance of the centering web can also be described as a secant, i. be executed as a straight section.
- the centering means can be formed, for example, from the material of the valve core, ie be made in one piece with the valve core.
- the valve insert with the centering means can be produced, for example, as a turned part or as a cold-formed part.
- the centering of the valve core for centering the return spring on three axially extending centering webs which preferably have a mean distance of 120 ° to each other.
- the centering means may have a mounting-correct insertion bevel, whereby the assembly is facilitated.
- the centering means are arranged, for example, so that a bottom of the centering means always has a distance from the valve body in order to form a stop for the valve body during an assembly process.
- Figure 1 is a schematic sectional view of a solenoid valve according to the invention
- Figure 2 is a schematic cross-sectional view taken along a line A-A of Figure 1 to
- Figure 3 is a schematic perspective view of a second embodiment of the
- Valve insert, Figure 4 is a schematic plan view of the second embodiment of the valve insert according to
- Figure 5 is a schematic perspective view of a third embodiment of the
- Valve insert, Figure 6 is a schematic plan view of the third embodiment of the valve insert according to
- Fig. 5, and Figure 7 is a schematic sectional view of a conventional solenoid valve.
- a solenoid valve 20 comprises, in addition to a magnet assembly (not shown), a valve cartridge which comprises a capsule 6, a valve core 1, a plunger 2, a return spring 3 and an armature 7 analogously to the conventional solenoid valve 100 according to FIG.
- the capsule 6 and the valve core 1 of the valve cartridge are joined together by pressing and by a sealing weld 8, the valve cartridge is hydraulically to the atmosphere sealed.
- the valve core 1 receives the pressure forces occurring in the hydraulic system and forwards them via a caulking flange 9 to a caulking region (not shown) on a fluid block.
- valve core 1 receives the so-called valve body 4, which comprises a valve seat 10, in which the plunger 2 is sealingly immersed to implement the sealing function of the solenoid valve 20.
- the plunger 2 are guided via a plunger guide 11 and the return spring 3 via centering 12 in the valve core 1, wherein the return spring 3, in contrast to the conventional solenoid valve 100 is not only one side on the plunger 2 centered, but by the centering means 12 is centered and stabilized almost over the entire length, so that the other end of the return spring 3 is centered and stabilized, which rests on the valve body 4.
- the centering means 12 of the valve core 1 for centering the return spring 3 comprise three axially extending centering webs, which are arranged within an inner bore of the valve core 1 and preferably have an average distance of 120 ° to each other, as can be seen from the cross-sectional view of FIG , In order to facilitate the insertion of the return spring 3, the centering webs 12 a mounting-correct insertion bevel 12.2. In addition, the centering webs are arranged in the valve core 1 that a bottom 12.3 of the centering webs 12 have a distance from the valve body 4, so that a stop of the valve body 4 during the assembly process of the solenoid valve 20 is prevented.
- the axial centering means 12 is prevented in an advantageous manner that it comes through a flow of fluid shown schematically as an arrow chain 5 through the solenoid valve 20 to an undesirable influence of the spring behavior.
- a lateral breaking of the return spring 3 and / or a lifting of the return spring 3 from the valve body 4 and / or a relative movement or oscillations of the turns of the return spring 3 can be prevented.
- the three axial centering webs 12 of a first embodiment of the valve core 1 are adapted via a guide groove 12.1 to the diameter of the return spring 3, wherein the guide groove 12.1 has the shape of a circular segment.
- the guides of the axial centering webs 12 can also be designed as straight sections.
- the axial Zentrierstege 12 are formed from the material of the valve core 1, for example by a plurality of holes, for example, via a central bore, the return spring 3 is guided and provided by three further holes channels for fluid management.
- Figures 3 and 4 show a second embodiment of the valve core 1 with three narrow axial Zentrierstegen 12, which are adapted by their dimensions to the diameter of the return spring 3.
- the second embodiment of the valve core 1 is made, for example, as a cold-formed part, which is machined, if necessary, by machining.
- Figures 5 and 6 show a third embodiment of the valve core 1 with three axial Zentrierstegen 12, which, analogous to the first embodiment shown in FIG. 2, are adapted via a guide groove 12.1 to the diameter of the return spring 3.
- the centering webs 12 have a cross-sectional shape which corresponds to a circular ring segment.
- the third embodiment of the valve core 1 is, for example, hergesellt as a rotating part.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006003857A DE102006003857A1 (en) | 2006-01-27 | 2006-01-27 | Magnetic valve, e.g. for a hydraulic unit in an antilock braking system (ABS), an acceleration slip regulation (ASR) or an electronic stability system (ESP), has a valve core and needle |
PCT/EP2006/069226 WO2007085316A1 (en) | 2006-01-27 | 2006-12-01 | Solenoid valve |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1981745A1 true EP1981745A1 (en) | 2008-10-22 |
Family
ID=37709489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06830292A Withdrawn EP1981745A1 (en) | 2006-01-27 | 2006-12-01 | Solenoid valve |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090008587A1 (en) |
EP (1) | EP1981745A1 (en) |
CN (1) | CN101336186A (en) |
DE (1) | DE102006003857A1 (en) |
WO (1) | WO2007085316A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017852A1 (en) * | 2008-04-09 | 2009-10-15 | Wabco Gmbh | Shift Solenoid |
DE102010024585A1 (en) * | 2009-06-26 | 2010-12-30 | Magna Powertrain Ag & Co Kg | magnetic valve |
DE102010000771A1 (en) * | 2010-01-11 | 2011-07-14 | Robert Bosch GmbH, 70469 | Solenoid valve with a core sleeve and method for its welding |
CN102003566A (en) * | 2010-11-11 | 2011-04-06 | 温伟光 | Novel electric control oiler electromagnetic valve and other improved structures for controlling gas flow electromagnetic valve |
DE102016220335A1 (en) * | 2016-10-18 | 2018-04-19 | Robert Bosch Gmbh | Solenoid valve for controlling the brake pressure of a wheel brake |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4538645A (en) * | 1983-08-16 | 1985-09-03 | Ambac Industries, Inc. | Control valve assembly |
DE4020188C2 (en) * | 1989-06-26 | 2001-02-22 | Denso Corp | Electromagnetic fuel injector |
DE4332368A1 (en) * | 1993-09-23 | 1995-03-30 | Bosch Gmbh Robert | Electromagnetically actuated valve, in particular for slip-controlled hydraulic brake systems in motor vehicles |
US5791747A (en) * | 1994-02-18 | 1998-08-11 | Kelsey-Hayes Company | Hydraulic valve control unit for vehicular anti-lock brake and traction control systems |
US6026847A (en) * | 1995-10-11 | 2000-02-22 | Reinicke; Robert H. | Magnetostrictively actuated valve |
US6065734A (en) * | 1997-10-03 | 2000-05-23 | Kelsey-Hayes Company | Control valve for a hydraulic control unit of vehicular brake systems |
JP2002505408A (en) * | 1998-03-03 | 2002-02-19 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | solenoid valve |
US6453930B1 (en) * | 2000-09-09 | 2002-09-24 | Kelsey-Hayes Company | Control valves for a hydraulic control unit and method of assembly |
EP1347907B1 (en) * | 2000-12-27 | 2005-06-08 | Continental Teves AG & Co. oHG | Valve mechanism, especially for an anti-skid automotive brake systems |
KR100466952B1 (en) * | 2002-04-24 | 2005-01-24 | 현대모비스 주식회사 | Anti-Lock Brake Equipment Solenoid Valve |
KR100465811B1 (en) * | 2002-04-24 | 2005-01-13 | 현대모비스 주식회사 | Anti-Lock Brake Equipment Solenoid Valve |
DE10253769B4 (en) * | 2002-11-19 | 2014-05-15 | Robert Bosch Gmbh | Electromagnetically actuated valve, in particular for hydraulic brake systems of motor vehicles |
KR100721383B1 (en) * | 2003-01-13 | 2007-05-23 | 주식회사 만도 | Traction Control Valve with Integrated Relief Function |
DE102004030423A1 (en) * | 2004-06-24 | 2006-01-19 | Robert Bosch Gmbh | valve device |
DE102004030425A1 (en) * | 2004-06-24 | 2006-01-19 | Robert Bosch Gmbh | valve device |
-
2006
- 2006-01-27 DE DE102006003857A patent/DE102006003857A1/en not_active Withdrawn
- 2006-12-01 US US12/162,155 patent/US20090008587A1/en not_active Abandoned
- 2006-12-01 WO PCT/EP2006/069226 patent/WO2007085316A1/en active Application Filing
- 2006-12-01 CN CNA2006800518565A patent/CN101336186A/en active Pending
- 2006-12-01 EP EP06830292A patent/EP1981745A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2007085316A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20090008587A1 (en) | 2009-01-08 |
WO2007085316A1 (en) | 2007-08-02 |
CN101336186A (en) | 2008-12-31 |
DE102006003857A1 (en) | 2007-08-02 |
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Legal Events
Date | Code | Title | Description |
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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: 20080827 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR |
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DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR |
|
17Q | First examination report despatched |
Effective date: 20090402 |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
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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 |
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18D | Application deemed to be withdrawn |
Effective date: 20110701 |