EP0937200B1 - Elektromagnetisch betätigbares ventil - Google Patents
Elektromagnetisch betätigbares ventil Download PDFInfo
- Publication number
- EP0937200B1 EP0937200B1 EP98941251A EP98941251A EP0937200B1 EP 0937200 B1 EP0937200 B1 EP 0937200B1 EP 98941251 A EP98941251 A EP 98941251A EP 98941251 A EP98941251 A EP 98941251A EP 0937200 B1 EP0937200 B1 EP 0937200B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- armature
- valve
- return flow
- flow element
- 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.)
- Expired - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 41
- 239000000446 fuel Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000035699 permeability Effects 0.000 claims description 7
- 239000003302 ferromagnetic material Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000010992 reflux Methods 0.000 description 33
- 238000000926 separation method Methods 0.000 description 29
- 238000007885 magnetic separation Methods 0.000 description 14
- 230000004907 flux Effects 0.000 description 12
- 239000007921 spray Substances 0.000 description 7
- 239000000696 magnetic material Substances 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/08—Fuel-injection apparatus having special means for influencing magnetic flux, e.g. for shielding or guiding magnetic flux
Definitions
- the invention is based on an electromagnetically actuated valve, in particular a fuel injection valve for fuel injection systems of internal combustion engines, according to the genus of the main claim.
- a Fuel injector in which a tubular core of one Magnetic coil is surrounded.
- An anchor closes at the spray-side end of the core on, which is connected to a valve closing body with a valve seat interacts.
- the valve seat is formed on a valve seat body, which in one tubular valve seat support is held.
- the valve seat body also serves as Partial element for the magnetic reflux of the magnetic flux circuit.
- valve seat support To encloses the valve seat support at its end opposite the spray end End the armature sleeve-like and directs the magnetic reflux radially to one Guide element, which connects the valve seat support to the core axially and thus the magnetic flux circuit closes.
- a magnetic short circuit between the core and to avoid the valve seat support serving as the reflux body Valve seat carrier separated from the core by a non-magnetic intermediate part, which as metalleries valve inner tube is formed.
- the magnetic flux therefore does not occur directly from the core into the valve seat support, but in an intended manner indirectly via the armature, so that the armature with electrical excitation of the Solenoid an axial force component to open the fuel injector is exercised.
- the formation of the metal intermediate part as an additional turned part requires an additional manufacturing effort and an additional assembly effort.
- the core the valve seat support and the non-magnetic intermediate part are separate turning parts manufactured and must be connected by two welds.
- the Welding seams serve at the same time for the hydraulic sealing, so that an overflow of the Fuel is prevented in an annular space receiving the solenoid.
- the quality of the weld seams must therefore meet and meet special requirements simplified welding process, e.g. B. a spot welding process can not Application come.
- non-magnetic intermediate part can also Eddy currents occur that affect the efficiency of the electromagnetic actuation of the Affect the valve.
- DE-PS 195 03 821 has already proposed the core and the To form the valve seat support as a one-piece component.
- the magnetic separation between The core and the valve seat support are replaced by a magnetic throttle achieved.
- the one-piece overall component forming the core and the valve seat support is included in the area of the throttle point with an extremely small wall thickness of, for example 0.2 mm. If the magnetic coil is excited magnetically, it will Range reached the saturation flux density, so that a restriction of the magnetic flux occurs and the magnetic exceeding the saturation flux density of the choke point Flow from the core passes through the armature into the valve seat support. Because of the low Wall thickness in the area of the magnetic choke point is however the mechanical one Stability of the overall component forming the core and the valve seat support is impaired, so assembly requires carefulness and precision.
- the on the The throttling point of the saturation flux density basically stands for the magnetic one Actuation of the armature is not available and thus deteriorates the efficiency electromagnetic actuation.
- the current flow in the solenoid coil is correspondingly too increase and the resulting thermal power loss must also be dissipated.
- the electromagnetically actuated valve according to the invention with the characteristic Features of the main claim has the advantage that the magnetic Separation point between the core and the reflux body is realized in a simple manner, by the ferritic or ferromagnetic material of the core or Reflux body is mechanically clamped in the area of the separation point.
- the Separation point have a relatively large wall thickness, so that mechanical instability does not occur at the magnetic separation point.
- the mechanical bracing in the area of the separation point can be particularly advantageous Way generated by plastic deformation, the material in the area the separation point is under mechanical residual stress.
- the plastic deformation can e.g. B. by a suitable pressing, mortising or stamping in an automatic Manufacturing processes can be realized.
- the core and the reflux body are in one piece Form entire component and the magnetic separation point by a plastic To realize deformation on the one-piece overall component.
- the assembly and Manufacturing costs are reduced to a minimum with this training. It can on the one-piece overall component in the area of the plastically deformed magnetic Separation point an annular recess surrounding the armature to be formed prevent the guide of the armature in the reflux body surrounding the armature is affected by the separation point.
- the separation point can be a extend axially out between the core and the armature formed to ensure that the anchor is on the spray end of the core and not on the plastically deformed separation point and thus the valve stroke through the plastically deformed separation point is not impaired.
- the core 3 has an axial longitudinal bore 4, in which a fluid, for. B. fuel flows. The direction of flow is indicated by arrow 5.
- the core 3 has an end face 6 which has an upstream end face 7 of a Anchor 8 is opposite.
- a gap 9 is formed in the core 3 and the upstream end face 7 of the armature 8.
- valve closing body When the solenoid 2 is excited by an electric current, the upstream End face 7 of the armature 8 pulled to the downstream end face 6, so that the End face 7 of the armature 8 strikes the end face 6 of the core 3.
- valve closing body lifts from one valve seat, also not shown, so that valve 1 opens.
- the not shown Valve closing body can with a Anchor 8 are connected.
- the solenoid 2 To actuate the valve 1, the solenoid 2 generates a magnetic flux which the core 3 enters the armature 8 via the gap 9 and radially out of the armature 8 Direction to a reflux body 10 surrounding the armature 8 passes.
- the Reflux body 10 is in the embodiment shown in Fig. 1 still Separation point 12 to be described in more detail is formed in one piece with the core 3. Further is a guide element 11 is provided, which the magnetic reflux to the core 3rd returns.
- the core 3, the armature 8, the reflux body 10 and the guide element 11 form a closed magnetic flux circuit.
- the separation point 12 also has one Sealing function to prevent the fluid flowing in the longitudinal bore 4 of the core 3 from a Annular space 13, which houses the magnet coil 2, to be hydraulically sealed.
- the fluid can e.g. B. on provided on the end face 7 of the armature 8 radial grooves a gap 14 radially surrounding the armature 8 to be guided in the direction of the Continue to flow valve seat.
- the armature 8 itself can be directly axial have flowing flow bores or grooves.
- the separation point 12 is according to the invention from the same ferritic or ferromagnetic material such as the core 3 and the reflux body 10 formed so that the separation point 12 is formed in one piece with the core 3 and / or the reflux body 10 can be without an additional intermediate part z. B. from one non-magnetic metal or plastic material is required. To one magnetic short circuit between the core 3 and the reflux body 10 too avoid, the separation point 12 may, however, no or only an insignificant magnetic flux from the core 3 directly to the reflux body 10 below Bypass the anchor 8 transferred.
- the Core 3 and / or the reflux body 10 made of a ferritic or ferromagnetic Material exists, the permeability of the mechanical stress, under which the material stands, depends and that the core 3 and / or the reflux body 10 in one Border area between the core 3 and the reflux body 10 to form the magnetic separation point 12 is mechanically clamped.
- the material of the Core 3 and / or the reflux body 10 in the region of the magnetic separation point 12 plastically deformed so that the material in the area of the separation point 12 under a mechanical residual stress, which is the permeability compared to the stress-free Condition of the material considerably reduced.
- the magnetic induction B as a function of the magnetic field strength H is shown in FIG. 2 merely by way of example for a preferred material for the core 3, the reflux body 10 and the separation point 12 in order to illustrate the invention.
- the functional relationship shown between the magnetic induction B and the magnetic field strength H relates to the commercially available ferritic magnetic material DMER 1F (K-M35FL). Of course, other ferritic or ferromagnetic materials are also suitable for carrying out the invention.
- the magnetic material shown in diagram 30 was only finally annealed. According to diagram 31, however, the magnetic material was subjected to a mechanical stress of 120 N / mm 2 after the final annealing.
- a comparison of the two diagrams shows that the permeability ⁇ for the magnetic material exposed to mechanical stress is relatively low in the range of a magnetic field strength H below 1.0 kA / m and only increases significantly in the range above 1.0 kA / m.
- For the stress-free magnetic material on the other hand, in a range of the magnetic field strength H below 10 kA / m there is a significantly greater permeability ⁇ in comparison to the magnetic material exposed to mechanical stress.
- the invention makes use of this to the extent that at the magnetic separation point 12 the material to reduce the permeability and thus to reduce the Flux density is mechanically braced for a given field strength.
- this mechanical tension due to a plastic deformation of the material in the Area of the separation point 12, for. B. by caulking, pressing or by stamping achieved so that the material is under mechanical residual stress.
- the advantage consists in particular in the fact that there is no separate component for the separation point 12 is required, but the separation point 12 from the same ferritic or Ferromagnetic material can be made, from which the core 3 and / or the reflux body 10.
- the core 3 and the reflux body 10 can with the Separation point 12 can therefore be integrally connected to form a one-piece overall component.
- the separation point 12 has a relatively high magnetic resistance and reduces the magnetic short circuit flow between the core 3 and the reflux body 10. At the same time, the separation point 12 ensures hydraulic sealing of the Magnetic coil 2 receiving annulus 13 compared to that of the invention Valve 1 flowing fluid.
- Electromagnetically actuated valve 1 in the form of a fuel injection valve for Fuel injection systems from mixture-compressing, spark-ignited Internal combustion engines. Elements already described with reference to FIG. 1 are included matching reference numerals to facilitate the assignment.
- the electromagnetically actuated valve 1 shown in FIG. 3 in the form of a Fuel injector has a surrounding by a solenoid 2, as Fuel inlet connector serving tubular core 3 as a so-called inner pole.
- On Coil body 40 receives a winding of the magnet coil 2.
- the core 3 is not like in the fuel injection valves of the prior art as a component that actually ends with a core end 41, but the core 3 runs over the magnetic separation point 12 continues in the downstream direction, so that a downstream of the coil body 40 arranged tubular connecting part, which in the further course as Reflux body 10 is referred to as a so-called outer pole in one piece with the core 3rd is formed, the resulting overall component being referred to as valve tube 42.
- the valve tube 42 has one magnetic separation point 12.
- a longitudinal bore 44 which is concentric with the Longitudinal valve axis 43 is formed.
- a longitudinal bore 44 In the longitudinal bore 44 is a z.
- tubular Valve needle 45 arranged at its downstream end 46 with a spherical valve closing body 47, on the circumference, for example, five Flattenings 48 are provided for the fuel to flow past, for example is connected by welding.
- a return spring 49 or closing the injection valve is used for electromagnetic Circle with the magnet coil 2, the core 3 and the armature 8.
- the armature 8 is with the Valve closing body 47 facing away from the end of the valve needle 45 by a weld connected and aligned to the core 3.
- a cylindrical valve seat body 50 In the downstream core 3 opposite end of the reflux body 10 also serving as a valve seat support is in the Longitudinal bore 44 is a cylindrical valve seat body 50, one with the Has valve closing body 47 cooperating valve seat, tight by welding assembled.
- a guide opening 51 of the Valve seat body 50 To guide the valve closing body 47 during the axial movement of the valve needle 45 with the armature 8 along the longitudinal valve axis 43, a guide opening 51 of the Valve seat body 50.
- the spherical valve closing body 47 acts with the in Flow direction frustoconical valve seat of valve seat body 50 together.
- the Valve seat body 50 On its end facing away from the valve closing body 47 is the Valve seat body 50 with, for example, a cup-shaped spray plate 52 firmly connected.
- the cup-shaped spray perforated disk 52 has at least one, for example four spray openings 53 formed by eroding or stamping.
- the armature 8 connected to the valve needle 45 during the Axial movement is the non-magnetic in the known fuel injection valves
- the extremely precise and highly accurate z. B. on precision lathes be made to achieve a small leadership game. Because with that no intermediate part is necessary, it makes sense to on the outer circumference of the armature 8 at least one guide surface, the z. B. by turning is made to provide.
- the guide surface can, for. B. as a circulating continuous guide ring or as several on the circumference with a distance from each other trained guide surfaces.
- the insertion depth of the valve seat body 50 with the cup-shaped spray perforated disk 52 determines the size of the stroke of the valve needle 45.
- the one end position is the Valve needle 45 when the solenoid coil 2 is not energized by the contact of the valve closing body 47 fixed to the valve seat of the valve seat body 50 while the other end position the valve needle 45 when the magnet coil 2 is excited by the contact of the armature 8 on Core end 41 results.
- the magnet coil 2 is of at least one, for example as a bracket trained guide element 54 surround the solenoid 2 in the circumferential direction at least partially surrounds and with one end of the core 3 and its at the other end against the reflux body 10 serving as valve seat support and with this z. B. can be connected by welding, soldering or gluing.
- the fuel injector is largely with a plastic extrusion 55 enclosed, starting from the core 3 in the axial direction via the magnet coil 2 and the at least one guide element 54 extends to the reflux body 10, the Guide element 54 is completely covered axially and in the circumferential direction.
- This Plastic encapsulation 55 belongs, for example, to an electrical injection molded onto it Connector 56.
- the one-piece, in the core 3, the magnetic separation point 12th and the reflux body 10 dividing valve tube 42 extends completely over the entire length of the fuel injector.
- Fig. 4 shows the detail IV in Fig. 3 in an enlarged view.
- Fig. 4 are in particular the armature 8, the core 3 and the via the separation point 12 of the core 3 separate reflux body 10 can be seen.
- Fig. 4 The upstream end face 7 of the armature 8 and the downstream end face 6 of the core 3 spaced apart by the gap 9.
- the separation point 12 is through a plastic deformation to generate the mechanical residual stress shaped like a bead. Between the separation point 12 and the an annular recess 60 is provided upstream end of the armature 8 z. B. by the deformation tool, e.g. an embossing stamp or an embossing die, can be trained.
- the annular recess 60 extends axially Direction against the spray direction of the fuel injector over the between the core 3 and the armature 8 formed gap 9 also.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Description
- Fig. 1
- ein erstes Ausführungsbeispiel eines erfindungsgemäß ausgestalteten Ventils in einer ausschnittsweisen, geschnittenen Prinzipdarstellung,
- Fig. 2
- die magnetische Induktion B als Funktion der magnetischen Feldstärke H für einen vorzugsweise verwendeten Werkstoff,
- Fig. 3
- ein zweites Ausführungsbeispiel eines erfindungsgemäß ausgestalteten Ventils in einer geschnittenen Darstellung, und
- Fig. 4
- den Ausschnitt IV in Fig. 3.
Claims (7)
- Elektromagnetisch betätigbares Ventil (1), insbesondere Brennstoffeinspritzventil für Brennstoffeinspritzanlagen von Brennkraftmaschinen, mit einem von einer Magnetspule (2) umgebenen Kern (3), einem dem Kern (3) benachbarten Anker (8), mittels welchen ein mit einem Ventilsitz zusammenwirkender Ventilschließkörper (47) betätigbar ist, und einem den Anker (8) umgebenden Rückflußkörper (10), der von dem Kern (3) durch eine Trennstelle (12) magnetisch getrennt ist,
dadurch gekennzeichnet, daß der Kern (3) und/oder der Rückflußkörper (10) aus einem ferritischen oder ferromagnetischen Werkstoff besteht, dessen Permeabilität von der mechanischen Spannung, unter welcher der Werkstoff steht, abhängig ist, und
daß der Kern (3) und/oder der Rückflußkörper (10) in einem Grenzbereich zwischen dem Kern (3) und dem Rückflußkörper (10) zur Ausbildung der Trennstelle (12) mechanisch verspannt ist. - Ventil nach Anspruch 1,
dadurch gekennzeichnet, daß der Werkstoff des Kerns (3) und/oder des Rückflußkörpers (10) aufgrund einer plastischen Verformung im Bereich der magnetischen Trennstelle (12) unter einer mechanischen Eigenspannung steht. - Ventil nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Kern (3) und der Rückflußkörper (10) als einstückiges Gesamtbauteil (42) ausgebildet sind, in welchem die Trennstelle (12) durch plastische Verformung ausgebildet ist. - Ventil nach Anspruch 3,
dadurch gekennzeichnet, daß das den Kern (3) und den Rückflußkörper (10) bildende, einstückige Gesamtbauteil (42) den Anker (8) an seinem an den Kern (3) angrenzenden Ende so umschließt, daß radial zwischen der plastisch verformten Trennstelle (12) und dem Anker (8) eine ringförmige Aussparung (60) ausgebildet ist. - Ventil nach Anspruch 4,
dadurch gekennzeichnet, daß sich die ringförmige Aussparung (60) in axialer Richtung über einen zwischen dem Kern (3) und dem Anker (8) ausgebildeten Spalt (9) hinaus erstreckt. - Ventil nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß der den Anker (8) umgebende Rückflußkörper (10) rohrförmig ausgebildet ist und gleichzeitig als Ventilsitzträger dient, der einen Ventilsitzkörper (50) trägt, an welchem der Ventilsitz ausgebildet ist. - Ventil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß der Rückflußkörper (10) und der Kern (3) durch wenigstens ein die Magnetspule (2) umschließendes Leitelement (54) miteinander verbunden sind und der Kern (3), der Anker (8), der Rückflüßkörper (10) und das Leitelement (54) einen geschlossenen magnetischen Flußkreis bilden.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19739324 | 1997-09-09 | ||
| DE19739324A DE19739324A1 (de) | 1997-09-09 | 1997-09-09 | Elektromagnetisch betätigbares Ventil |
| PCT/DE1998/001788 WO1999013211A1 (de) | 1997-09-09 | 1998-06-30 | Elektromagnetisch betätigbares ventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0937200A1 EP0937200A1 (de) | 1999-08-25 |
| EP0937200B1 true EP0937200B1 (de) | 2002-04-10 |
Family
ID=7841614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98941251A Expired - Lifetime EP0937200B1 (de) | 1997-09-09 | 1998-06-30 | Elektromagnetisch betätigbares ventil |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6042082A (de) |
| EP (1) | EP0937200B1 (de) |
| JP (1) | JP2001505277A (de) |
| DE (2) | DE19739324A1 (de) |
| ES (1) | ES2175755T3 (de) |
| WO (1) | WO1999013211A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19808067A1 (de) * | 1998-02-26 | 1999-09-02 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil |
| JP2001263521A (ja) * | 2000-03-17 | 2001-09-26 | Denso Corp | 電磁駆動装置およびそれを用いた流体制御弁と電磁駆動装置の製造方法 |
| US6434822B1 (en) * | 2000-09-13 | 2002-08-20 | Delphi Technologies, Inc. | Method of fuel injector assembly |
| JP4045209B2 (ja) * | 2003-06-20 | 2008-02-13 | 株式会社日立製作所 | 電磁式燃料噴射弁 |
| JP3819907B2 (ja) * | 2004-02-27 | 2006-09-13 | 株式会社ケーヒン | 電磁式燃料噴射弁およびその製造方法 |
| DE102004037541B4 (de) * | 2004-08-03 | 2016-12-29 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| DE102004047041B4 (de) * | 2004-09-28 | 2017-06-14 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
| JP4535033B2 (ja) * | 2005-10-14 | 2010-09-01 | 株式会社デンソー | 減圧弁および燃料噴射装置 |
| DE102011084704A1 (de) * | 2011-10-18 | 2013-04-18 | Robert Bosch Gmbh | Ausrichtelement für ein Einspritzventil sowie Verfahren zur Herstellung eines Einspritzventils |
| JP6265009B2 (ja) * | 2014-03-31 | 2018-01-24 | アイシン・エィ・ダブリュ株式会社 | 電磁駆動装置および電磁弁 |
| CN106489046B (zh) * | 2014-07-10 | 2020-05-19 | 博格华纳公司 | 用于螺线管曲线成形的弯曲分流器 |
| WO2017041979A2 (en) * | 2015-09-11 | 2017-03-16 | Continental Automotive Gmbh | Fluid injection valve |
| WO2018128149A1 (ja) * | 2017-01-05 | 2018-07-12 | Tdk株式会社 | 磁心並びにこれを用いたリアクトル、限流器、電磁アクチュエータ及びモータ |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3925212C2 (de) * | 1989-07-29 | 1997-03-27 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil |
| DE4003227C1 (en) * | 1990-02-03 | 1991-01-03 | Robert Bosch Gmbh, 7000 Stuttgart, De | EM fuel injection valve for IC engine - has two overlapping parts welded together as narrowed section of one part |
| US5494225A (en) * | 1994-08-18 | 1996-02-27 | Siemens Automotive Corporation | Shell component to protect injector from corrosion |
| DE19503821A1 (de) | 1995-02-06 | 1996-08-08 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil |
| DE19503820C2 (de) * | 1995-02-06 | 2003-10-16 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung einer Führung an einem Ventil |
-
1997
- 1997-09-09 DE DE19739324A patent/DE19739324A1/de not_active Withdrawn
-
1998
- 1998-06-30 EP EP98941251A patent/EP0937200B1/de not_active Expired - Lifetime
- 1998-06-30 ES ES98941251T patent/ES2175755T3/es not_active Expired - Lifetime
- 1998-06-30 DE DE59803722T patent/DE59803722D1/de not_active Expired - Fee Related
- 1998-06-30 WO PCT/DE1998/001788 patent/WO1999013211A1/de not_active Ceased
- 1998-06-30 US US09/297,797 patent/US6042082A/en not_active Expired - Fee Related
- 1998-06-30 JP JP51489499A patent/JP2001505277A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES2175755T3 (es) | 2002-11-16 |
| US6042082A (en) | 2000-03-28 |
| DE19739324A1 (de) | 1999-03-11 |
| JP2001505277A (ja) | 2001-04-17 |
| DE59803722D1 (de) | 2002-05-16 |
| EP0937200A1 (de) | 1999-08-25 |
| WO1999013211A1 (de) | 1999-03-18 |
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