EP1607620A1 - Kraftstoffinjektor mit Spannhülse als Anschlag für Ventilnadel - Google Patents
Kraftstoffinjektor mit Spannhülse als Anschlag für Ventilnadel Download PDFInfo
- Publication number
- EP1607620A1 EP1607620A1 EP05103071A EP05103071A EP1607620A1 EP 1607620 A1 EP1607620 A1 EP 1607620A1 EP 05103071 A EP05103071 A EP 05103071A EP 05103071 A EP05103071 A EP 05103071A EP 1607620 A1 EP1607620 A1 EP 1607620A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping sleeve
- fuel injector
- magnet pot
- valve needle
- pot
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000036316 preload Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004381 surface treatment 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
- 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
- F02M61/161—Means for adjusting injection-valve lift
-
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
-
- 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
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0043—Two-way valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S251/00—Valves and valve actuation
- Y10S251/903—Needle valves
Definitions
- the stroke limitation for example, by the use of a stop washer on which the valve needle abuts realized.
- the stop disc lies on the magnet pot on, so that a direct impact of the valve needle on the magnet pot avoided becomes.
- the required for the operation of the fuel injector stroke and the residual air gap are adjusted by grinding in protrusions or steps on the valve needle.
- valve needle abuts against a sleeve pressed into the magnet pot.
- the stroke and the residual air gap are adjusted by shims whose thickness is equal to the stroke or the residual air gap is adjusted.
- a hold-down with a sleeve-shaped stop offers another way to realize the stroke limitation.
- a sleeve-shaped stop is known from DE 102 49 161 B3. This is the hub adjusted by a shim between the valve body and the hold-down and the residual air gap by grinding the sleeve formed as a stop on the appropriate Length.
- the magnet pot is described as described in Bosch Research Info, 3/2001, made of a metal / polymer composite. These are fine iron particles wrapped in plastic, pressed and sintered into a workpiece. This material is however very brittle and therefore sensitive to impact. For this reason, it must be avoided that the valve needle strikes the magnet pot.
- valve needle By striking the valve needle to the magnet pot parts can break, causing the magnetic properties of the magnet pot can change. Also can the erupted particles cause higher wear and thereby to Failure of the fuel injector lead.
- trained fuel injector which has a control valve with an electromagnetic operable valve needle is driven, wherein a coil in a magnetizable from Material made magnetic pot is added, in the magnet pot one Clamping sleeve received with a running between the end faces gap-shaped opening.
- the clamping sleeve is biased and into a bore, preferably centered in the magnet pot is inserted. Due to the bias creates a spring force in the clamping sleeve, through which the clamping sleeve against the wall of the bore is pressed and holds in the magnetic pot.
- the spring force is calculated so that the clamping sleeve not due to the shaking stress occurring during operation and the own mass dissolves.
- the required extrusion forces of the clamping sleeve from the magnet pot are preferably in the range of 100 to 500 N. As Auspresskraft while the power is too understand that is required to release the clamping sleeve from the magnet pot.
- the clamping sleeve is made of a non-magnetizable Material made.
- a sleeve of magnetizable material has the disadvantage that, too after completion of the power supply of the coil, the magnetization is maintained and so the Valve needle is first held by the clamping sleeve in the open position and only closes with a delay.
- the material from which the clamping sleeve is made preferably not deformable by the impact of the valve needle. A plastic deformation
- the clamping sleeve would cause the needle stroke with the operating time of the fuel injector increases. An enlargement of the needle stroke can, for example to an increase in the injected fuel quantity and thus to a higher Fuel consumption lead.
- a suitable material for the production of the clamping sleeve is for Example carbon steel.
- the outer diameter is the clamping sleeve preferably greater than or equal to the diameter of the stop surface the valve needle.
- the width of the extending between the end faces slit-shaped opening is at most 25% of the sleeve circumference, a kinking the valve needle when striking avoided and thus achieved a precise opening.
- a annular stop surface and thus a uniform striking of the valve needle can be achieved in that received in the magnet pot at least two clamping sleeves are, whose extending between the end faces gap-shaped openings at different Radial positions are arranged.
- the length of the clamping sleeve corresponds to Height of the magnet pot, so that the front sides of clamping sleeve and magnet pot a smooth Form surface. This is achieved in that first the at least one clamping sleeve in the magnetic pot is pressed and then the front sides of the magnet pot with the be pressed flat in this press-fitted clamping sleeve.
- the residual air gap required for this is that the armature of the valve needle does not stick to the magnet pot is thereby achieved that the stop surface of the valve needle to the height of the residual air gap from the Anchor of the valve needle protrudes.
- Figure 1 shows an inventively designed control valve of a fuel injector.
- a control valve 1 comprises a valve body 2 with a centrally located therein Hole in which a valve needle 3 is guided.
- a stop plate 4 On the one injector, not shown here facing side joins the valve body 2 a stop plate 4 at.
- the first valve chamber 5 is formed by an end face 6 of the stop plate 4 limited.
- a bore 10 closes in the Stop plate 4 on.
- the bore 10 opens a second valve chamber 8. By a Flat seat 7 on the valve needle 3, the bore 10 can be opened in the stop plate 4 or be closed.
- a guide pin 9 is formed on the stop plate 4.
- valve needle On the side facing away from the stop plate 4, the valve needle expands into a valve pin head 11.
- a guide pin 12 connects.
- the Guide pin 12 is formed by a preferably designed as a spiral spring closing element 13 enclosed.
- the closing element 13 is supported with one side against an end face 14 of the valve needle head 11 and with the other side against an end face 16 of a Upper housing part 15 from.
- the guide pin 12 prevents the Closing element 13 on the end face 14 of the valve needle head 11 can slip. Also the guide pin 12 prevents buckling of the closing element 13 during a lifting movement the valve needle 3 from the flat seat. 7
- valve body 2 and the upper housing part 15 are connected by a clamping nut 17 with each other connected.
- the opening and closing operation of the valve needle 3 is electromagnetically controlled.
- a magnet pot 18, which has a ring-shaped Has groove in which a coil 19 is received.
- the coil 19 is connected via an electrical Terminal 20 is powered.
- This magnetic field is the Magnetic pot 18 magnetized material.
- This causes a magnetic from Material manufactured anchor 21, which surrounds the valve needle head 11, through the magnet pot 18 is attracted. In this way, the valve needle 3 moves in the direction of Magnet pot 18 and thus releases the flat seat 7.
- This is designed as a spiral spring Closing element 13 compressed.
- the closing element 13 is within a bore 22 arranged in the magnetic pot 18, so that the magnet pot 18, the closing element 13th encloses.
- the material of the magnetic pot 18 is preferably a sintered metal or contains fine Plastic coated iron particles that were pressed into a magnet pot 18. hereby prevents eddy currents in the magnet pot, which delay the switching process. This material is extremely brittle and therefore impact-sensitive. Therefore it could by striking the valve needle 3 for breaking individual particles from the magnet pot 18 come. This changes the magnetic properties. moreover The broken particles can cause higher wear and thus to Failure of the control valve 1 lead.
- a clamping sleeve 23 is received in the bore 22 in the magnet pot 18.
- the clamping sleeve 23 has a gap-shaped opening extending between the end faces 24 on.
- the gap-shaped opening 24 serves to ensure that the clamping sleeve 23 with a defined Spring force is pressed into the bore 22 in the magnet pot 18.
- the slit-shaped Opening 24 allows the clamping sleeve 23 with a biasing force in the bore 22 is used. For this reason, when mounting the clamping sleeve 23 no Pressing forces are exerted on the magnet pot 18, as in a closed sleeve the case would be. Due to the high required pressing forces with closed sleeves they can blow up the magnet pot 18. This is achieved by the use of the invention Clamping sleeve 23 with the gap-shaped opening 24 avoided.
- the clamping sleeve 23 is supported with an end face against the adjusting ring 25. To this Way are the impact forces when you hit the valve needle 3 during the opening process acting on the clamping sleeve 23, transmitted to the adjusting ring 25.
- the clamping sleeve 23 is preferably made of a non-magnetizable material. Also, the material of the clamping sleeve 23 the impact forces acting on the clamping sleeve 23 when the valve needle 3 is hit, transferred to the adjustment ring 25 and may not be damaged by these impact forces. For this reason, a carbon steel is preferably used as the material for the clamping sleeve 23 elected. Other suitable materials for the clamping sleeve are, for example, stainless Steels.
- Reference numeral 26 denotes a second electrical connection in the control valve 1. Via the second electrical connection 26, for example, another valve in Fuel injector to be powered. The power supply of the fuel injector via contact 27.
- FIG. 2 shows the detail Z from FIG. 1.
- FIG. 2 shows that the stop diameter 28 of the end face 14 of the valve needle head 11 is smaller than the outer diameter 29 of the clamping sleeve 23. In this way it is ensured that the valve needle 3 abuts exclusively against the clamping sleeve 23 and not against the magnetic pot 18, since a striking against the magnet pot 18 to a Damage could cause the same.
- the setting of the residual air gap 31 takes place in accordance with the invention Fuel injector such that the valve needle head 11 by the height of the residual air gap 31st protrudes from the armature 21.
- FIG. 3 shows a plan view of a magnet pot with a clamping sleeve accommodated therein.
- the plan view of the magnet pot 18 can be seen that in these at least one Bore 32 is received, which opens into an annular groove 33 for receiving the coil 19.
- two holes 32 in the magnet pot 18 recorded.
- the bores 32 serve to receive the electrical connection 20, with which the coil 19, through which the magnetic field is generated, is supplied to and Receiving the second electrical connection 26, for example, for power supply a second valve is used in the fuel injector.
- the bore 22 is received.
- the clamping sleeve 23 is arranged, which with a spring force against the wall of the bore 22 is pressed.
- the gap-shaped opening 24, extending between the end faces of the clamping sleeve 23 extends, trained.
- the spring force is applied by the clamping sleeve 23 is compressed, whereby the width of the slit-shaped opening 24 is reduced and the diameter of the clamping sleeve 23 is reduced.
- the pretensioned clamping sleeve 23 is inserted into the bore 22.
- the bias of the Tensioning sleeve 23 is taken so that it opens into its original shape. This opening is interrupted by the wall of the bore 22, so that the clamping sleeve 23 with a residual spring force against the wall of the bore 22 is pressed.
- the remaining spring force is so great that a shaking stress and the mass of the clamping sleeve 23 does not lead to a release of the clamping sleeve 23. In this way, the clamping sleeve 23rd fixed due to the spring force in the bore 22 of the magnet pot 18 (press fit).
- FIG. 4 shows a magnetic pot with a clamping sleeve received therein before the final one Surface treatment.
- the annular groove 33 for receiving the coil 19.
- Die Ring groove 33 is connected to the bores 32, so that the coil 9 in the annular groove 33 via the bore 32 can be supplied with power.
- Figure 4 can be seen that the clamping sleeve 23 to form a projection 35 protrudes from the magnet pot 13. This shows the step in the assembly, though the clamping sleeve 23 is already inserted in the magnet pot 18, but the end face 34 of the Magnet pot 18 is not yet ground flat.
- FIG. 5 shows the magnet pot 18 with inserted clamping sleeve 23 and surface ground End face 34 of the magnet pot 18 and end face 36 of the clamping sleeve 23.
- FIGS. 6.1, 6.2 and 6.3 show various embodiments of the invention between the End-side extending gap-shaped openings shown.
- Figure 6.1 shows a in axial direction between the end faces extending gap-shaped opening 24 in the Clamping sleeve 23.
- Figure 6.2 is a spiral around the clamping sleeve 23 running around gap-shaped opening 24 shown.
- the part of the gap-shaped opening 24, which is on the plane of the drawing protruding side of the clamping sleeve 23 is located, with dashed lines darg Med.
- the gap-shaped opening 24 can also in the Form a spiral around the clamping sleeve 23 several times.
- gap-shaped opening 24 is darg Robinson in Figure 6.3.
- the gap-shaped opening 24 extends arcuately on the clamping sleeve 23rd
- the width of the gap-shaped opening 24 is maximum in a preferred embodiment 25% of the circumference of the clamping sleeve 23.
- FIG. 1 Another possibility, a tilting of the valve needle 3 when hitting the clamping sleeve 23 is shown in FIG.
- a second clamping sleeve 38 braced.
- the assembly of the second clamping sleeve 38 is analogous to the assembly the clamping sleeve 23.
- the gap-shaped Opening 39 of the second clamping sleeve 38 to the gap-shaped opening 24 of the clamping sleeve 23rd added. This ensures that the end face 14 of the valve needle head 11th strikes over the entire circumference of the clamping sleeves 23, 38.
- clamping sleeves 23, 38 are used.
- the gap-shaped openings 24, 39 of the clamping sleeves 23, 38 offset when using more than two clamping sleeves so that the gap-shaped opening of each clamping sleeve at a different position, on the circumference located.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- Figur 1
- ein erfindungsgemäß ausgebildetes Steuerventil eines Kraftstoffinjektors,
- Figur 2
- Einzelheit Z aus Figur 1,
- Figur 3
- eine Draufsicht auf einen Magnettopf mit darin aufgenommener Spannhülse,
- Figur 4
- einen Schnitt durch einen Magnettopf mit darin aufgenommener Spannhülse vor dem Planschleifen der Stirnseiten,
- Figur 5
- einen Schnitt durch einen Magnettopf mit darin aufgenommener Spannhülse mit plangeschliffenen Stirnseiten,
- Figuren 6.1, 6.2 und 6.3
- verschiedene Ausführungen der zwischen den Stirnseiten verlaufenden spaltförmigen Öffnung der Spannhülse,
- Figur 7
- Draufsicht auf einen Magnettopf mit zwei darin aufgenommenen Spannhülsen.
- 1
- Steuerventil
- 2
- Ventilkörper
- 3
- Ventilnadel
- 4
- Anschlagplatte
- 5
- erster Ventilraum
- 6
- Stirnfläche der Anschlagplatte 4
- 7
- Flachsitz
- 8
- zweiter Ventilraum
- 9
- Führungsstift
- 10
- Bohrung
- 11
- Ventilnadelkopf
- 12
- Führungszapfen
- 13
- Schließelement
- 14
- Stirnfläche des Ventilnadelkopfes 11
- 15
- oberes Gehäuseteil
- 16
- Stirnfläche des oberen Gehäuseteils 15
- 17
- Spannmutter
- 18
- Magnettopf
- 19
- Spule
- 20
- elektrischer Anschluss
- 21
- Anker
- 22
- Bohrung im Magnettopf 18
- 23
- Spannhülse
- 24
- spaltförmige Öffnung
- 25
- Einstellring
- 26
- zweiter elektrischer Anschluss
- 27
- Kontakt
- 28
- Anschlagdurchmesser
- 29
- Außendurchmesser der Spannhülse 23
- 30
- Hub
- 31
- Restluftspalt
- 32
- Bohrung
- 33
- Ringnut
- 34
- Stirnfläche des Magnettopfes 18
- 35
- Vorsprung
- 36
- Stirnseite der Spannhülse 23
- 37
- Höhe des Magnettopfes 18
- 38
- zweite Spannhülse
- 39
- spaltförmige Öffnung der zweiten Spannhülse 38
Claims (11)
- Kraftstoffinjektor für Verbrennungskraftmaschinen mit einem Steuerventil (1) mit einer elektromagnetisch betätigbaren Ventilnadel (3), wobei eine Spule (19) in einem aus magnetisierbaren Material gefertigten Magnettopf (18) aufgenommen ist, dadurch gekennzeichnet, dass in dem Magnettopf (18) mindestens eine Spannhülse (23) mit einer zwischen den Stirnseiten verlaufenden spaltförmigen Öffnung (24) aufgenommen ist.
- Kraftstoffinjektor nach Anspruch 1, dadurch gekennzeichnet, dass die Spannhülse (23) durch Federkraft gegen die Wandung einer Bohrung (22) im Magnettopf (18) verspannt ist.
- Kraftstoffinjektor nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Spannhülse (23) aus einem nicht magnetisierbaren Material gefertigt ist.
- Kraftstoffinjektor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Spannhülse (23) durch das Anschlagen der Ventilnadel (3) beim Öffnen des Ventils nicht verformt wird.
- Kraftstoffinjektor nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Spannhülse (23) ein Schließelement (13) umschließt.
- Kraftstoffinjektor nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Breite der spaltförmigen Öffnung (24) maximal 25 % des Hülsenumfanges der Spannhülse (23) beträgt.
- Kraftstoffinjektor nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Länge der Spannhülse (23) der Höhe (37) des Magnettopfes (18) entspricht, so dass Stirnseiten (34, 36) von Spannhülse (23) und Magnettopf (18) eine glatte Fläche bilden.
- Kraftstoffinjektor nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Außendurchmesser (29) der Spannhülse (23) mindestens so groß ist wie der Anschlagdurchmesser (28) der Stirnfläche (14) des Ventilnadelkopfes (11).
- Kraftstoffinjektor nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass in dem Magnettopf (18) mindestens zwei Spannhülsen (23, 38) aufgenommen sind, deren spaltförmigen Öffnungen (24, 39) an unterschiedlichen radialen Positionen angeordnet sind.
- Verfahren zur Herstellung eines Kraftstoffinjektors nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Spannhülse (23) zunächst in den Magnettopf (18) unter Federvorspannung eingepresst wird und anschließend der Magnettopf (18) mitsamt der Spannhülse (23) auf eine Höhe (37) geschliffen wird, um ebene Stirnflächen zu erhalten.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass die Kraft, mit der die Spannhülse in den Magnettopf eingepresst ist, so bemessen ist, dass zum Lösen der Spannhülse eine Auspresskraft im Bereich von 100 bis 500 N erforderlich ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004028523 | 2004-06-11 | ||
| DE102004028523A DE102004028523A1 (de) | 2004-06-11 | 2004-06-11 | Kraftstoffinjektor mit Spannhülse als Anschlag für Ventilnadel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1607620A1 true EP1607620A1 (de) | 2005-12-21 |
| EP1607620B1 EP1607620B1 (de) | 2008-03-19 |
Family
ID=34939349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05103071A Expired - Lifetime EP1607620B1 (de) | 2004-06-11 | 2005-04-18 | Kraftstoffinjektor mit Spannhülse als Anschlag für Ventilnadel |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7527211B2 (de) |
| EP (1) | EP1607620B1 (de) |
| JP (1) | JP2005351278A (de) |
| DE (2) | DE102004028523A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015205161A1 (de) * | 2015-03-23 | 2016-09-29 | Robert Bosch Gmbh | Ventil für eine Kraftstoffeinspritzkomponente |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2354528B1 (de) * | 2010-01-15 | 2012-08-29 | Continental Automotive GmbH | Ventilanordnung und Einspritzventil |
| JP5381921B2 (ja) * | 2010-07-21 | 2014-01-08 | トヨタ自動車株式会社 | センターボルト |
| FR2973076A1 (fr) * | 2011-03-25 | 2012-09-28 | Bosch Gmbh Robert | Regulateur de pression, dispositif d'injection diesel comportant un tel regulateur, moteur diesel comportant un tel dispositif d'injection et vehicule comportant un tel moteur |
| GB2567201A (en) * | 2017-10-05 | 2019-04-10 | Delphi Tech Ip Ltd | Fuel Injector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6390067B1 (en) * | 2000-08-10 | 2002-05-21 | Delphi Technologies, Inc. | Valve seat retainer for a fuel injector |
| EP1219816A1 (de) * | 2000-12-29 | 2002-07-03 | Siemens Automotive Corporation | Modulares Brennstoffeinspritzventil mit austauschbarem Anker und mit einer den Hub einstellenden Hülse |
| US6421913B1 (en) * | 2000-01-19 | 2002-07-23 | Delphi Technologies, Inc. | Retention feature for assembling a pole pieces into a tube of a fuel injector |
| DE10249161B3 (de) * | 2002-10-22 | 2004-01-29 | Robert Bosch Gmbh | Vorrichtung zur Einstellung eines Ankerhubs eines Magnetventils |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5301874A (en) * | 1990-05-26 | 1994-04-12 | Robert Bosch Gmbh | Adjusting sleeve for an electromagnetically actuatable valve |
| DE4131500A1 (de) * | 1991-09-21 | 1993-03-25 | Bosch Gmbh Robert | Elektromagnetisch betaetigbares einspritzventil |
| JP3601554B2 (ja) * | 1995-08-11 | 2004-12-15 | アイシン・エィ・ダブリュ株式会社 | 電磁式圧力調整弁 |
| DE19756103A1 (de) * | 1997-12-17 | 1999-06-24 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| DE19832826C2 (de) * | 1998-07-21 | 2000-08-17 | Bosch Gmbh Robert | Montageverfahren für Kraftstoff-Einspritzventil und Vorsteuerventil sowie Kraftstoff-Einspritzventil |
| DE10050238A1 (de) * | 2000-10-11 | 2002-04-25 | Bosch Gmbh Robert | Magnetventilbetätigtes Steuermodul zur Fluidkontrolle bei Einspritzsystemen |
| DE10052604A1 (de) * | 2000-10-24 | 2002-05-02 | Bosch Gmbh Robert | Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine |
| JP3791591B2 (ja) * | 2000-11-29 | 2006-06-28 | 株式会社デンソー | 燃料噴射弁とそのスプリング力調整用のアジャストパイプ及びその圧入方法 |
| DE10109411A1 (de) | 2001-02-28 | 2002-09-05 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
| JP2003156169A (ja) * | 2001-09-04 | 2003-05-30 | Denso Corp | 電磁式流体制御装置 |
| DE10200531A1 (de) * | 2002-01-09 | 2003-07-24 | Bosch Gmbh Robert | Steuerteil für Injektoren mit schaltbarer Düsennadel |
| US6702207B2 (en) * | 2002-07-16 | 2004-03-09 | Robert Bosch Gmbh | Fuel injector control module with unidirectional dampening |
| JP3757261B2 (ja) * | 2002-08-05 | 2006-03-22 | ボッシュ株式会社 | 燃料噴射弁 |
-
2004
- 2004-06-11 DE DE102004028523A patent/DE102004028523A1/de not_active Withdrawn
-
2005
- 2005-04-18 DE DE502005003274T patent/DE502005003274D1/de not_active Expired - Lifetime
- 2005-04-18 EP EP05103071A patent/EP1607620B1/de not_active Expired - Lifetime
- 2005-06-10 US US11/149,288 patent/US7527211B2/en not_active Expired - Fee Related
- 2005-06-13 JP JP2005173038A patent/JP2005351278A/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6421913B1 (en) * | 2000-01-19 | 2002-07-23 | Delphi Technologies, Inc. | Retention feature for assembling a pole pieces into a tube of a fuel injector |
| US6390067B1 (en) * | 2000-08-10 | 2002-05-21 | Delphi Technologies, Inc. | Valve seat retainer for a fuel injector |
| EP1219816A1 (de) * | 2000-12-29 | 2002-07-03 | Siemens Automotive Corporation | Modulares Brennstoffeinspritzventil mit austauschbarem Anker und mit einer den Hub einstellenden Hülse |
| DE10249161B3 (de) * | 2002-10-22 | 2004-01-29 | Robert Bosch Gmbh | Vorrichtung zur Einstellung eines Ankerhubs eines Magnetventils |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015205161A1 (de) * | 2015-03-23 | 2016-09-29 | Robert Bosch Gmbh | Ventil für eine Kraftstoffeinspritzkomponente |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005351278A (ja) | 2005-12-22 |
| DE502005003274D1 (de) | 2008-04-30 |
| EP1607620B1 (de) | 2008-03-19 |
| US20050274829A1 (en) | 2005-12-15 |
| US7527211B2 (en) | 2009-05-05 |
| DE102004028523A1 (de) | 2005-12-29 |
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