DE4003606A1 - Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layers - Google Patents
Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layersInfo
- Publication number
- DE4003606A1 DE4003606A1 DE19904003606 DE4003606A DE4003606A1 DE 4003606 A1 DE4003606 A1 DE 4003606A1 DE 19904003606 DE19904003606 DE 19904003606 DE 4003606 A DE4003606 A DE 4003606A DE 4003606 A1 DE4003606 A1 DE 4003606A1
- Authority
- DE
- Germany
- Prior art keywords
- armature
- guide tube
- valve
- magnetic
- layer
- 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.)
- Ceased
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
- H01F7/081—Magnetic constructions
-
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/025—Electrically controlled valves
- B60T15/028—Electrically controlled valves in hydraulic systems
-
- 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
-
- 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
- H01F2007/085—Yoke or polar piece between coil bobbin and armature having a gap, e.g. filled with nonmagnetic material
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Die Erfindung geht aus von einem elektromagnetisch betätigten Ventil nach der Gattung des Hauptanspruchs.The invention is based on an electromagnetically operated valve according to the genus of the main claim.
Es ist schon ein solches Ventil bekannt (DE-OS 20 23 967), bei dem das den Anker aufnehmende Ankerführungsrohr auch das Medium enthält, dessen Durchfluß durch das Ventilgehäuse in Abhängigkeit von der stellung des Ankers gesteuert wird. Dieses Medium kann sehr hohe Drücke auf das Ankerführungsrohr ausüben. Dieses ist daher aus einem nichtmagnetisierbaren Stahl hoher Festigkeit gefertigt worden, um eine relativ dünne Wand des Ankerführungsrohres zu erzielen. Da dieser Werkstoff aber einen erheblichen magnetischen Widerstand im Magnetkreis des Ventiles bildet, hat man das Ankerführungsrohr aus einem ferromagnetischen, nichtrostenden Stahl hergestellt, welcher ebenfalls eine hohe Festigkeit besitzt. Damit ist zwar der erwähnte Nachteil vermieden, jedoch verursacht der bei diesem Werkstoff nach dem Abschalten des magnetischen Feldes verbleibende Restmagnetismus ein Kleben des Ankers im Ankerführungsrohr, was sich nachteilig auf das dynamische Verhalten des Ventils auswirkt.Such a valve is already known (DE-OS 20 23 967), in which the anchor guide tube receiving the anchor also contains the medium, whose flow through the valve housing depending on the position of the anchor is controlled. This medium can be very high Apply pressure to the anchor guide tube. This is therefore from one high strength non-magnetizable steel has been manufactured to to achieve a relatively thin wall of the anchor guide tube. There this material has a considerable magnetic resistance in the Forms the magnetic circuit of the valve, you have the armature guide tube a ferromagnetic, stainless steel, which also has high strength. This is indeed the one mentioned Disadvantage avoided, but causes after with this material residual magnetism remaining when the magnetic field is switched off a sticking of the anchor in the anchor guide tube, which is disadvantageous affects the dynamic behavior of the valve.
Das erfindungsgemäße Ventil mit den kennzeichnenden Merkmalen des Hauptanpruchs hat demgegenüber den Vorteil, daß mit der Verwendung des Schichtverbundwerkstoffs sowohl der magnetische Widerstand im Magnetkreis des Ventils niedrig gehalten als auch das Kleben des Ankers im Ankerführungsrohr weitgehend vermieden wird.The valve according to the invention with the characteristic features of Main claim has the advantage that with the use of the layered composite material, both the magnetic resistance in Magnetic circuit of the valve kept low as well as sticking the Anchor in the anchor guide tube is largely avoided.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vor teilhafte Weiterbildungen und Verbesserungen des im Hauptanspruchs angegebenen Ventils möglich.The measures listed in the subclaims provide for partial further training and improvements of the main claim specified valve possible.
Mit der im Anspruch 2 angegebenen Maßnahme werden durch die innen- und außenseitig des Rohres identischen Werkstoffe Fertigungs vorteile, insbesondere bei der Handhabung des Halbzeuges Blech erzielt, aus dem das Ankerführungsrohr durch Tiefziehen üblicher weise erzeugt wird.With the measure specified in claim 2 are by inside and outside of the tube of identical materials manufacturing Advantages, especially when handling the sheet metal semi-finished product achieved from which the anchor guide tube is more common by deep drawing is generated wisely.
Der im Anspruch 3 gekennzeichnete Schichtverbundwerkstoff hat den Vorteil der Korrosionsbeständigkeit sowie der hohen Festigkeit.The layered composite material characterized in claim 3 has the Advantage of corrosion resistance and high strength.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung verein facht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigenAn embodiment of the invention is shown in the drawing times shown and in the following description explained. Show it
Fig. 1 ein Magnetventil mit Ankerführungsrohr im Längsschnitt und Fig. 1 is a solenoid valve with armature guide tube in longitudinal section and
Fig. 2 einen Abschnitt eines Wandquerschnitts des Ankerführungsrohres. Fig. 2 shows a portion of a wall cross section of the anchor guide tube.
Das in Fig. 1 in der Zeichnung dargestellte Ventil 10 ist zur Ver wendung in einer Fahrzeug-Bremsanlage bestimmt. Es hat ein Ventil gehäuse 11 mit einer Längsbohrung 12. In die Längsbohrung 12 münden radial verlaufende Einlaßbohrungen 13 für in der Bremsanlage ver wendetes Druckmittel ein. In die Längsbohrung 12 des Ventil gehäuses 11 ist von unten ein Ventilkörper 14 eingepreßt. Dieser besitzt eine gleichachsig verlaufende Auslaßbohrung 15 für Druck mittel. Im Bereich der Einlaßbohrungen 13 ist die Auslaßbohrung 15 zu einem Ventilsitz 16 ausgestaltet. Dieser wirkt mit einer Ventil kugel 17 zusammen, welche in einen Anker 18 des Ventils 10 ein gepreßt ist.The valve 10 shown in FIG. 1 is intended for use in a vehicle brake system. It has a valve housing 11 with a longitudinal bore 12 . In the longitudinal bore 12 open radially extending inlet bores 13 for a pressure medium used in the brake system ver. In the longitudinal bore 12 of the valve housing 11 , a valve body 14 is pressed from below. This has a coaxial outlet bore 15 for pressure medium. In the area of the inlet bores 13 , the outlet bore 15 is configured to form a valve seat 16 . This interacts with a valve ball 17 , which is pressed into an armature 18 of the valve 10 .
An das Ventilgehäuse 11 ist in Verlängerung der Längsbohrung 12 ein Ankerführungsrohr 20 angefügt. Dieses besitzt den gleichen Innen durchmesser wie die Längsbohrung 12 des Ventilgehäuses 11. Das Ankerführungsrohr 20 ist an seinem oberen Endabschnitt 21 geschlossen ausgebildet. In das Ankerführungsrohr 20 ist ein Pol kern 22 passend eingefügt und durch eine Formschlußverbindung axial gehalten. Der Anker 18 erstreckt sich teils im Ventilgehäuse 11 und teils im Ankerführungsrohr 20 verlaufend zwischen dem Polkern 22 und dem Ventilkörper 14. Ein derart angeordneter Anker 18 wird in Fach kreisen als Tauchanker bezeichnet. Der Anker 18 ist durch eine im Polkern 22 aufgenommene Ventilfeder 23 belastet, so daß die Ventil kugel 17 mit einer gewissen Schließkraft am Ventilsitz 16 angreift. Außerdem befindet sich zwischen dem Anker 18 und dem Polkern 22 eine Restluftspaltscheibe 24. An seinem anderen Endabschnitt 25 ist das Ankerführungsrohr 20 zu einem radial nach außen verlaufenden Flansch 26 umgeformt. Dieser ist unter metallischer Pressung an einer Bohrungsstufe 27 des Ventilgehäuses 11 abgestützt, welche die Längsbohrung 12 am Übergang zu einer durchmessergrößeren Gewinde bohrung 28 begrenzt. In die Gewindebohrung 28 ist eine am Flansch 26 angreifende Ringmutter 29 eingeschraubt.An armature guide tube 20 is attached to the valve housing 11 in the extension of the longitudinal bore 12 . This has the same inner diameter as the longitudinal bore 12 of the valve housing 11 . The armature guide tube 20 is closed at its upper end section 21 . In the armature guide tube 20 , a pole core 22 is inserted appropriately and held axially by a positive connection. The armature 18 extends partly in the valve housing 11 and partly in the armature guide tube 20 between the pole core 22 and the valve body 14 . An anchor 18 arranged in this way is referred to in circles as diving anchors. The armature 18 is loaded by a valve spring 23 accommodated in the pole core 22 , so that the valve ball 17 engages the valve seat 16 with a certain closing force. There is also a residual air gap disk 24 between the armature 18 and the pole core 22 . At its other end section 25 , the armature guide tube 20 is shaped into a radially outwardly extending flange 26 . This is supported under metallic pressure on a bore step 27 of the valve housing 11 , which limits the longitudinal bore 12 at the transition to a larger diameter bore 28 . A ring nut 29 engaging the flange 26 is screwed into the threaded bore 28 .
Dem Ventilgehäuse 11 durch die Einlaßbohrungen 13 zugeführtes Druck mittel befindet sich auch im Ankerführungsrohr 20. Da bei hydrau lischen Fahrzeug-Bremsanlagen das Druckmittel unter einem Druck von bis zu 250 bar stehen kann, muß nicht nur die Preßverbindung zwischen dem Ankerführungsrohr 20 und dem Ventilgehäuse 11 dicht sein sondern das Ankerführungsrohr auch eine Festigkeit entsprechend dem nahezu doppelten Berstdruck besitzen.The valve housing 11 through the inlet holes 13 supplied pressure medium is also in the armature guide tube 20th Since in hydraulic vehicle brake systems, the pressure medium can be under a pressure of up to 250 bar, not only the press connection between the armature guide tube 20 and the valve housing 11 must be tight, but the armature guide tube also have a strength corresponding to the almost double burst pressure.
Das Ankerführungsrohr 20 ist von einer Spule 32 mit einer auf einen Spulenkörper 33 aus Kunststoff aufgebrachten Wicklung 34 umgeben. Die Wicklung 34 ist außen von einer ebenfalls aus Kunststoff bestehenden Umhüllung 35 flüssigkeitsdicht umschlossen. Über die Spule 32 greift ein etwa topfförmig ausgebildeter Spulen-Gehäuse mantel 36. Er ist mit dem Ventilgehäuse 11 kraft- und/oder form schlüssig verbunden. Der Gehäusemantel 36 ist im Bereich des Pol kerns 22 mit einer buchsenförmigen Einziehung 37 versehen, mit der er am Ankerführungsrohr 20 passend angreift. Isolierte Kontakt stifte 38 der Spule 32 sind stirnseitig durch den Spulen-Gehäuse mantel 36 hindurchgeführt.The armature guide tube 20 is surrounded by a coil 32 with a winding 34 applied to a coil former 33 made of plastic. The winding 34 is enclosed on the outside by a casing 35 which is also made of plastic and is liquid-tight. About the coil 32 engages an approximately cup-shaped coil housing shell 36 . It is non-positively and / or positively connected to the valve housing 11 . The housing shell 36 is provided in the region of the pole core 22 with a bush-shaped recess 37 , with which it engages the armature guide tube 20 appropriately. Insulated contact pins 38 of the coil 32 are passed through the end of the coil housing jacket 36 .
Bei erregter Wicklung 34 der Spule 32 des Ventiles 10 führen im wesentlichen der Spulen-Gehäusemantel 36, der Polkern 22, der Anker 18 sowie das Ventilgehäuse 11 mit Ringmutter 29 den magnetischen Fluß des magnetischen Kreises. Diese Bauteile des Ventils 10 sind daher aus einem weichmagnetischen Werkstoff, das ist weich magnetischer Stahl, hergestellt. Das vom magnetischen Fluß ebenfalls durchdrungene Ankerführungsrohr 20 besteht dagegen aus einem Schichtverbundwerkstoff mit drei Schichten (Fig. 2). Eine erste, äußere Schicht 40 ist ein nichtmagnetisierbares Metall, zum Beispiel ein nichtrostender austenitischer Stahl. Die zweite, mittlere Schicht 41 ist ein weichmagnetischer Werkstoff, das heißt ein weich magnetischer Stahl mit guten Tiefzieheigenschaften. Die dritte, äußere Schicht 42 besteht vorzugsweise aus dem gleichen Werkstoff wie die erste Schicht 40. Die drei Schichten 40, 41 und 42 des Verbundwerkstoffs des Ankerführungsrohres 20 sind über eine Grenz schicht fest miteinander verbunden. Die Verbindung widersteht den Herstellungsschritten des durch Tiefziehen aus Blech geformten Ankerführungsrohres 20. Die Dicke der beiden außenliegenden ersten Schicht 40 und dritten Schicht 42 beträgt je etwa 10% der gesamten Dicke des Schichtverbundwerkstoffs. Zur Erfüllung der Festigkeits anforderungen an das Ankerführungsrohr 20 des als hydraulisches Hochdruckventil in Fahrzeug-Bremsanlagen benutzten Ventiles 10 genügt eine Dicke des Schichtverbundwerkstoffs zwischen 0,3 und 1,2 mm.When the winding 34 of the coil 32 of the valve 10 is excited, essentially the coil housing jacket 36 , the pole core 22 , the armature 18 and the valve housing 11 with ring nut 29 guide the magnetic flux of the magnetic circuit. These components of the valve 10 are therefore made of a soft magnetic material, that is soft magnetic steel. In contrast, the armature guide tube 20, which is also penetrated by the magnetic flux, consists of a layered composite material with three layers ( FIG. 2). A first, outer layer 40 is a non-magnetizable metal, for example a stainless austenitic steel. The second, middle layer 41 is a soft magnetic material, that is to say a soft magnetic steel with good deep-drawing properties. The third, outer layer 42 preferably consists of the same material as the first layer 40 . The three layers 40 , 41 and 42 of the composite material of the anchor guide tube 20 are firmly connected to one another via a boundary layer. The connection resists the manufacturing steps of the anchor guide tube 20 formed by deep drawing from sheet metal. The thickness of the two outer first layers 40 and third layer 42 is approximately 10% of the total thickness of the layered composite material. To meet the strength requirements for the anchor guide tube 20 of the valve 10 used as a hydraulic high-pressure valve in vehicle brake systems, a thickness of the layered composite material between 0.3 and 1.2 mm is sufficient.
Das vom magnetischen Fluß insbesondere im Bereich zwischen der Einziehung 37 des Spulen-Gehäusemantels 36 und dem Polkern 22 sowie zwischen dem Anker 18 und dem Ventilgehäuse 11 mit Ringmutter 29 durchflossene Ankerführungsrohr 20 setzt aufgrund dieser Werkstoffe dem magnetischen Fluß einen geringen magnetischen Widerstand ent gegen, weil die zweite, mittlere Schicht 41 des Schichtverbundwerk stoffs, welche den magnetischen Fluß gut leitet, den überwiegenden Teil des Wandquerschnitts des Ankerführungsrohres 20 bildet. Die dem Anker 18 des Ventils 10 zugewandete äußere Schicht des Schicht verbundwerkstoffs verhindert dagegen aufgrund ihrer nicht magnetischen Eigenschaften das Kleben des Ankers 18 am Ankerfüh rungsrohr 20. Hierdurch können sehr kurze Schaltzeiten des Ventiles 10 erreicht werden.The armature guide tube 20 through which the magnetic flux flows, in particular in the region between the recess 37 of the coil housing shell 36 and the pole core 22 and between the armature 18 and the valve housing 11 with ring nut 29 , sets a low magnetic resistance against the magnetic flux due to these materials, because the second, middle layer 41 of the composite layer material, which conducts the magnetic flux well, forms the major part of the wall cross section of the armature guide tube 20 . The armature 18 of the valve 10 facing outer layer of the composite material, however, prevents the sticking of the armature 18 on the armature guide tube 20 due to its non-magnetic properties. As a result, very short switching times of the valve 10 can be achieved.
Abweichend vom Ausführungsbeispiel ist es jedoch auch ausreichend, wenn zur Herstellung des Ankerführungsrohres 20 ein Schichtverbund werkstoff aus lediglich zwei Schichten verwendet wird. Die Schicht, welche die Innenseite des Ankerführungsrohres 20 bildet, besteht aus einem nichtmagnetisierbaren Metall, während die der Spule 32 zuge wandte, äußere Schicht des Ankerführungsrohres 20 aus einem weich magnetischen Werkstoff besteht und eine mehrfach größere Dicke als die erste Schicht aufweist. Auch können vom beschriebenen Ausfüh rungsbeispiel abweichende Festigkeitsanforderungen an das Ankerfüh rungsrohr andere Wandstärken als erwähnt bedingen.Deviating from the exemplary embodiment, however, it is also sufficient if a layered composite material consisting of only two layers is used to produce the anchor guide tube 20 . The layer which forms the inside of the armature guide tube 20 consists of a non-magnetizable metal, while the coil 32 facing the outer layer of the armature guide tube 20 consists of a soft magnetic material and has a thickness which is several times greater than that of the first layer. Also, different strength requirements for the anchor guide tube from the exemplary embodiment described may require different wall thicknesses than mentioned.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904003606 DE4003606A1 (en) | 1990-02-07 | 1990-02-07 | Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904003606 DE4003606A1 (en) | 1990-02-07 | 1990-02-07 | Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4003606A1 true DE4003606A1 (en) | 1990-12-20 |
Family
ID=6399597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19904003606 Ceased DE4003606A1 (en) | 1990-02-07 | 1990-02-07 | Electromagnetically operated valve for vehicle braking system - has armature located in tube of magnetic and non-magnetic layers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4003606A1 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4030571A1 (en) * | 1990-09-27 | 1992-04-02 | Teves Gmbh Alfred | ELECTROMAGNETIC VALVE, ESPECIALLY FOR HYDRAULIC BRAKE SYSTEMS WITH SLIP CONTROL |
| DE4131288A1 (en) * | 1991-09-20 | 1992-05-21 | Daimler Benz Ag | Magnetic valve for air preheater in IC engine - has permanently open passages through armature displaced against opposition of spring and cooperating with sealing disc |
| DE4100967A1 (en) * | 1991-01-15 | 1992-07-16 | Teves Gmbh Alfred | Electrohydraulic braking pressure controller with resilient coil mountings - allows coils to be aligned w.r.t. valve block without stress on relatively rigid circuit board contacts |
| DE4141546A1 (en) * | 1991-12-17 | 1993-06-24 | Teves Metallwaren Alfred | Electromagnetic valve esp. for hydraulic anti-skid braking system - has sleeve secured tightly into stepped bore contg. funnel=shaped insert for centring needle on seating |
| EP0559067A1 (en) * | 1992-03-06 | 1993-09-08 | Sumitomo Electric Industries, Limited | Solenoid valve |
| DE4235077A1 (en) * | 1992-10-17 | 1994-04-21 | Bosch Gmbh Robert | Valve esp. for hydraulic vehicle brake system - has hollow component contg. pair of relatively movable valve elements and at least one connecting opening |
| US5374114A (en) * | 1991-01-15 | 1994-12-20 | Alfred Teves Gmbh | Electrohydraulic pressure control device |
| US5564799A (en) * | 1992-01-31 | 1996-10-15 | Sumitomo Electric Industries, Ltd. | Holding apparatus for a solenoid valve controlling brake pressure |
| DE19525384A1 (en) * | 1995-07-12 | 1997-01-16 | Dungs Karl Gmbh & Co | Double safety solenoid valve assembly - has two independently operating valves in one housing with common solenoid and nested armatures, allowing relative axial movement |
| WO1998031577A1 (en) * | 1997-01-14 | 1998-07-23 | Continental Teves Ag & Co. Ohg | Magnetic valve |
| WO1998031578A1 (en) * | 1997-01-14 | 1998-07-23 | Continental Teves Ag & Co. Ohg | Electromagnetic valve and process for setting the stroke of an electromagnetic valve |
| WO1999025595A1 (en) * | 1997-11-19 | 1999-05-27 | Continental Teves Ag & Co. Ohg | Solenoid valve |
| DE19908440A1 (en) * | 1999-02-22 | 2000-08-24 | Mannesmann Rexroth Ag | Directional seat valve |
| DE10006318A1 (en) * | 2000-02-12 | 2001-08-23 | Daimler Chrysler Ag | Actuator for electromagnetic valve control with two electromagnets has rotary gap between magnetic yoke core and casing parts arranged so entire magnetic flux in yoke passes across gap |
| US6336470B1 (en) | 1999-02-22 | 2002-01-08 | Hydraulik-Ring Gmbh | Directional seat valve |
| EP1544525A1 (en) * | 2003-12-18 | 2005-06-22 | INA-Schaeffler KG | Solenoid operated hydraulic valve |
| WO2005059420A1 (en) * | 2003-12-18 | 2005-06-30 | Schaeffler Kg | Electromagnetic hydraulic valve, in particular 3/2-way selector valve for controlling a variable valve gear of an internal combustion engine |
| DE102004038090A1 (en) * | 2004-08-05 | 2006-03-16 | Bosch Rexroth Aktiengesellschaft | magnetic valve |
| DE10038139B4 (en) * | 2000-08-04 | 2007-06-06 | Stahlwerk Ergste Westig Gmbh | Guide element for a magnet arrangement |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3105233A1 (en) * | 1981-02-13 | 1982-09-09 | Eks Elektromagnetik Dr. Scheuerer Kg, 7143 Vaihingen | Pressure-tight capsule for a valve magnet |
-
1990
- 1990-02-07 DE DE19904003606 patent/DE4003606A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3105233A1 (en) * | 1981-02-13 | 1982-09-09 | Eks Elektromagnetik Dr. Scheuerer Kg, 7143 Vaihingen | Pressure-tight capsule for a valve magnet |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4030571A1 (en) * | 1990-09-27 | 1992-04-02 | Teves Gmbh Alfred | ELECTROMAGNETIC VALVE, ESPECIALLY FOR HYDRAULIC BRAKE SYSTEMS WITH SLIP CONTROL |
| US5333946A (en) * | 1990-09-27 | 1994-08-02 | Alfred Teves Gmbh | Electromagnetic valve for antislip hydraulic brake systems |
| US5374114A (en) * | 1991-01-15 | 1994-12-20 | Alfred Teves Gmbh | Electrohydraulic pressure control device |
| DE4100967A1 (en) * | 1991-01-15 | 1992-07-16 | Teves Gmbh Alfred | Electrohydraulic braking pressure controller with resilient coil mountings - allows coils to be aligned w.r.t. valve block without stress on relatively rigid circuit board contacts |
| DE4131288A1 (en) * | 1991-09-20 | 1992-05-21 | Daimler Benz Ag | Magnetic valve for air preheater in IC engine - has permanently open passages through armature displaced against opposition of spring and cooperating with sealing disc |
| DE4141546A1 (en) * | 1991-12-17 | 1993-06-24 | Teves Metallwaren Alfred | Electromagnetic valve esp. for hydraulic anti-skid braking system - has sleeve secured tightly into stepped bore contg. funnel=shaped insert for centring needle on seating |
| DE4141546C2 (en) * | 1991-12-17 | 2002-02-14 | Continental Teves Ag & Co Ohg | Solenoid valve, especially for hydraulic brake systems with slip control |
| US5564799A (en) * | 1992-01-31 | 1996-10-15 | Sumitomo Electric Industries, Ltd. | Holding apparatus for a solenoid valve controlling brake pressure |
| US5328151A (en) * | 1992-03-06 | 1994-07-12 | Sumitomo Electric Industries, Ltd. | Solenoid valve |
| EP0559067A1 (en) * | 1992-03-06 | 1993-09-08 | Sumitomo Electric Industries, Limited | Solenoid valve |
| DE4235077A1 (en) * | 1992-10-17 | 1994-04-21 | Bosch Gmbh Robert | Valve esp. for hydraulic vehicle brake system - has hollow component contg. pair of relatively movable valve elements and at least one connecting opening |
| DE19525384A1 (en) * | 1995-07-12 | 1997-01-16 | Dungs Karl Gmbh & Co | Double safety solenoid valve assembly - has two independently operating valves in one housing with common solenoid and nested armatures, allowing relative axial movement |
| DE19525384C2 (en) * | 1995-07-12 | 2003-07-10 | Dungs Karl Gmbh & Co | Double safety solenoid valve |
| WO1998031577A1 (en) * | 1997-01-14 | 1998-07-23 | Continental Teves Ag & Co. Ohg | Magnetic valve |
| WO1998031578A1 (en) * | 1997-01-14 | 1998-07-23 | Continental Teves Ag & Co. Ohg | Electromagnetic valve and process for setting the stroke of an electromagnetic valve |
| US6268784B1 (en) | 1997-01-14 | 2001-07-31 | Continental Teves Ag & Co., Ohg | Magnetic valve |
| WO1999025595A1 (en) * | 1997-11-19 | 1999-05-27 | Continental Teves Ag & Co. Ohg | Solenoid valve |
| US6336470B1 (en) | 1999-02-22 | 2002-01-08 | Hydraulik-Ring Gmbh | Directional seat valve |
| DE19908440A1 (en) * | 1999-02-22 | 2000-08-24 | Mannesmann Rexroth Ag | Directional seat valve |
| DE10006318A1 (en) * | 2000-02-12 | 2001-08-23 | Daimler Chrysler Ag | Actuator for electromagnetic valve control with two electromagnets has rotary gap between magnetic yoke core and casing parts arranged so entire magnetic flux in yoke passes across gap |
| DE10038139B4 (en) * | 2000-08-04 | 2007-06-06 | Stahlwerk Ergste Westig Gmbh | Guide element for a magnet arrangement |
| EP1544525A1 (en) * | 2003-12-18 | 2005-06-22 | INA-Schaeffler KG | Solenoid operated hydraulic valve |
| WO2005059420A1 (en) * | 2003-12-18 | 2005-06-30 | Schaeffler Kg | Electromagnetic hydraulic valve, in particular 3/2-way selector valve for controlling a variable valve gear of an internal combustion engine |
| US7243680B2 (en) | 2003-12-18 | 2007-07-17 | Schaeffler Kg | Electromagnetic hydraulic valve, in particular a 3/2-way directional control valve, for controlling a variable drive train of an internal combustion engine |
| CN100424393C (en) * | 2003-12-18 | 2008-10-08 | 依纳-谢夫勒两合公司 | Electromagnetic hydraulic valve, in particular 3/2-way selector valve for controlling a variable valve gear of an internal combustion engine |
| DE102004038090A1 (en) * | 2004-08-05 | 2006-03-16 | Bosch Rexroth Aktiengesellschaft | magnetic valve |
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