WO2006056520A1 - Elektrische überbrückung in kraftstoffinjektoren - Google Patents
Elektrische überbrückung in kraftstoffinjektoren Download PDFInfo
- Publication number
- WO2006056520A1 WO2006056520A1 PCT/EP2005/055652 EP2005055652W WO2006056520A1 WO 2006056520 A1 WO2006056520 A1 WO 2006056520A1 EP 2005055652 W EP2005055652 W EP 2005055652W WO 2006056520 A1 WO2006056520 A1 WO 2006056520A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- solid conductor
- valve
- module
- conductor
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 239000004020 conductor Substances 0.000 claims abstract description 113
- 239000007787 solid Substances 0.000 claims abstract description 92
- 239000000463 material Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910016347 CuSn Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 claims description 2
- 239000010956 nickel silver Substances 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 abstract description 2
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 22
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229920001169 thermoplastic Polymers 0.000 description 7
- 239000004416 thermosoftening plastic Substances 0.000 description 6
- 210000002105 tongue Anatomy 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- F02M51/005—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
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49405—Valve or choke making
- Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
Definitions
- kom ⁇ men fuel injectors which contain one or more electrically controllable valves.
- an electrically controllable solenoid or piezoelectric valve can be provided to control a needle valve and thus to control the course of the injection.
- Other valves can be used for example for a pressure boosting.
- the electrical contacting of these valves is often a challenge.
- the invention therefore proposes a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, which avoids the described disadvantages of the prior art.
- the fuel injector has an injector body, at least one electrically controllable valve let into the injector body and at least one electrical injector body contact accessible from an outside of the injector body.
- At least one of the electrically controllable valves should have at least one electrical valve body contact.
- a basic idea of the present invention is to use a solid conductor for the electrical connection between the at least one valve contact and the at least one injector body contact, which does not deform under the action of its own weight force in contrast to a simple cable or wire and instead of a solder joint ⁇ example, via plug contacts is contacted. Slight plastic deformations of the solid conductor under the action of its own weight and under additional force can be accepted if the shape of the solid conductor remains essentially unchanged.
- the at least one solid conductor thus represents a kind of artificial extension of the electrical valve contacts.
- the at least one solid conductor and the at least one electrical valve contact are connected via an electrically conductive connection and / or via at least one electrically conductive connection element.
- the at least one connecting element is connected to the at least one solid conductor and the at least one electrical contact via a respective electrically conductive connection.
- fuel injectors can be realized in a simple manner, which can be disassembled or reassembled non-destructively into a plurality of individual parts.
- the injector body contact and the at least one electrically controllable valve can be arranged in different individual parts, wherein the at least one solid conductor is reversibly connected to at least one injector body contact.
- This connection can be made for example via a plug connection.
- the solid conductor is, for example, firmly or only slightly detachably connected at one end to a valve contact and at another end detachably connected to an injector body contact.
- the solid conductor can extend on the way from the valve contact to the injector body contact by further individual parts of the injector body, in particular by one or more Head of channels.
- the solid conductor can be electrically insulated against the injector body, for example by means of a shrink tube.
- the fuel injector described allows a much simplified compared to the prior art manufacturing process. Initially, the described individual parts are produced and tested individually. Subsequently, the at least one valve contact with a solid conductor fixed or difficult to be releasably connected again. Subsequently, the items are connected to a single injector body, wherein the at least one solid conductor is reversibly connected to the at least one injector body contact.
- Figure 1 is a sectional view of a fuel injector with a solenoid valve for nozzle needle control and a solid conductor for electrically connecting the solenoid valve with an external injector body contact;
- Figure 2 shows the solenoid valve with its two electrical valve contacts and fixed to the valve contacts solid conductors
- FIG. 3 shows an attachment of the solid conductors to the valve contacts by means of a welding process
- Figure 4 is a positive connection element
- Figure 5 shows an alternative positive connection element
- FIG. 6 is a sectional view of the connection of a valve contact with a solid conductor via a positive connection according to FIG. 4 and a plug connection;
- FIG. 7 shows a sectional illustration of a connection of a valve contact with a master conductor via two form-fitting connections according to FIG. 4;
- FIG. 8 is a perspective view of two connections between a respective valve contact and a solid conductor via a respective positive connection according to FIG. 4 and a positive connection according to FIG. 5;
- FIG. 9 shows a flowchart of a method according to the invention.
- FIG. 1 shows an overall view of an injector body 110 for a common rail injection system.
- the injector body 110 can be dismantled at parting lines 124, 126, 128 and 130 into substantially five functional modules 132, 134, 136, 138, 140: a control module 132, a sealing plate 134, a line connection module 136, a pressure booster module 138 and a Nozzle module 140.
- the pressure booster module 138 serves essentially to provide a fuel pressure, which is provided by an external pressure source, for example via a high-pressure accumulation space (common rail), to the fuel injector (for example 1000 bar) into a second pressure ( 2200 bar, for example), so that two working pressures are available for the injection process.
- a high-pressure accumulation space common rail
- the injector body 110 has two solenoid valves 111, 112: a first solenoid valve 111 arranged in the control module 132 for controlling the pressure transmission in the pressure booster module 138, and a second solenoid valve 112 arranged in the nozzle module 140 for controlling the actual injection process via a (FIG. not shown) valve needle.
- a first solenoid valve 111 arranged in the control module 132 for controlling the pressure transmission in the pressure booster module 138
- a second solenoid valve 112 arranged in the nozzle module 140 for controlling the actual injection process via a (FIG. not shown) valve needle.
- the solenoid valve 112 in the nozzle module 140 is electrically actuated via two electrical valve contacts 114.
- the injector body 110 has at its upper end an electrical injector body contact 116 accessible from above.
- the realization of a dismantling In the illustrated modular construction of the injector body 110, the injector body 110 or a simple modular assembly consists of electrically connecting the valve contacts 114 to the injector body contact 116 in such a way that further ease of assembly and disassembly of the injector body is ensured.
- two conductor channels 120 are provided in this embodiment, which extend through the modules 138, 136 and 134.
- the conductor channels 120 are formed by bores in the pressure booster module 138, in the line connection module 136 and in the sealing plate 134. When the injector body 110 is assembled, these bores are in each case flush at the parting lines 128 and 126, so that a single, continuous conductor channel 120 results.
- the individual holes of the conductor channel 120 have in this embodiment in the individual modules 138, 136, 134 each have a straight course. A curved course of the holes can be realized with the inventive solution.
- the bores in the individual modules 138, 136, 134 each have a different inclination to an injector axis 142.
- the conductor channel 120 in the pressure booster module 138 has an inclination of 1 ° to the injector axis 142
- the inclination in this embodiment in the line connection module 136 is 2.2 °.
- valve contacts 114 and the injector body contact 116 must therefore fulfill several boundary conditions:
- connection between the valve contacts 114 and the injector body contact 116 should be reliable and resistant to impact during operation, but should simply be releasable again for assembly purposes. • The connection must be able to easily follow an overall not straight course of a conductor channel 120, ie have a corresponding flexibility or plasticity.
- connection of the solid conductors 118 with the plug contacts 122 is reversible, so that this connection can be made during assembly of the injector body 110 by simply pressing in the solid conductors 118 into the plug contacts 122.
- the solid conductors 118 can be easily removed again from the plug contacts 122 and thus be disassembled again with the injector body 110 without the need for unsoldering of electrical connections.
- the solid conductors 118 are stiff enough that on the one hand they do not substantially change their shape under their own weight and thus easily pass through the conductor channels 120 with their different inclinations to the injector axis 142 and insert into the plug contacts 122.
- the solid conductors should have a certain plasticity, so that no mechanical stresses occur at the transition between sections of the conductor channels 120 with different angles of inclination.
- the term "solid conductor” does not necessarily restrict the selection of materials to solid materials, but it is also possible, for example, to use waveguides (tubes) as solid conductors 118, provided they have sufficient mechanical rigidity.
- the solid conductors 118 comprise CuSn6 having a Brinell hardness between 80 and 90 HB as the material which is otherwise used, for example, as a welding filler.
- the material which is otherwise used for example, as a welding filler.
- These materials meet the above requirements for hardness and plasticity and are also easily connected by welding with the valve contacts 114.
- the hardness of the materials should be between 50 and 100 HB, preferably between 60 and 95 HB and particularly advantageously between 75 and 90 HB.
- the solenoid valve 112 is shown and two solid conductors 118, each 127 mm in length, which are connected to the valve contacts 114.
- the connection between the solid conductors 118 and the valve contacts 114 is in this case encapsulated with an electrically insulating thermoplastic 210 and therefore not visible in this perspective representation.
- PPS or PA in particular glass fiber-filled PPS or PA (eg PPS GF 30 or PA 66 GF 30), may be used as the thermoplastic material in addition to other alternatives, in which case the glassiaser filling additionally increases the mechanical stability of the compound strengthened.
- the electrically insulating thermoplastic plastic 210 increases the dimensional stability of the connections between the valve contacts 114 and the solid conductors 118.
- the solid conductors 118 in this exemplary embodiment are largely wrapped with heat-shrinkable tubing 212.
- the shrink tubes 212 electrically insulate the solid conductors 118 against the walls of the conductor channels 120 of the injector body 110.
- the shrink tubes 212 are not completely shrunk onto the solid conductors 118 in order to save costs, but only in some sections.
- the shrink tubing 212 extends upwardly from the electrically insulating thermoplastic 210.
- the electrical insulation in particular the heat-shrinkable tube 212, terminates in each case below the upper ends 214 of the solid conductors 118, so that the upper ends 214 of the solid conductors 218 are not enveloped in an electrically insulating manner and can be plugged into the plug contacts 122 in an electrically connecting manner.
- an electrically conductive connection between the valve contacts 114 and the injector body contact 116 can be produced without an expensive soldering or welding process.
- the injector body 110 can again be easily dismantled for maintenance purposes, wherein the plug connection 122 is simply separated again from the solid conductors 118 by the action of force. Unsoldering or otherwise separating the compound is not required, since the compound is reversible.
- FIG. 3 illustrates perspectively an exemplary embodiment of the connections between the valve contacts 114 of the solenoid valve 112 and the solid conductors 118, in which the valve contacts 114 and the solid conductors 118 are connected directly by welded connections 310.
- the upper ends of the valve contacts 114 are bent at right angles, as are the lower ends of the solid conductors 118.
- the bent ends are made overlapping and welded in each case (cohesive connection).
- non-positive or positive connections can also be used.
- This welded connection 310 allows a cost-effective connection between the solid conductors 118 and the valve contacts 114, since no additional connecting elements are required.
- thermoplastic, electrically insulating plastic encapsulation 210 (see FIG. 2), which can also be applied in the exemplary embodiment according to FIG. 3 in order to electrically insulate the connection sites and mechanically stabilize the connection 310.
- the exemplary embodiment according to FIG. 3 is an example of a direct connection of the valve contacts 114 to the solid conductors 118.
- the valve contacts 114 with the solid conductors 118 can also be connected via electrically conductive connecting elements 410. Examples of such electrically conductive connecting elements 410 are shown in FIGS. 4 to 8. In this case, in each case one end of an electrically conductive connection element 410 is fixedly or detachably connected to a valve contact 114 and another end of the electrically conductive connection element 410 is connected to one end of a solid conductor 118.
- FIG. 4 illustrates a possible embodiment of a connection between an electrically conductive connecting element 410 and either one end of a valve contact 114 or one end of a solid conductor 118, wherein the electrically conductive connection takes place by means of a positive connection method.
- the electrically conductive connecting element 410 has a bore 412 at one end.
- the bore 412 has a diameter of 2.5 mm.
- In the bore 412 extend, symmetrically along the circumference of the bore 412 distributed, plastically deformable electrically conductive tongues 414.
- the tongues 414 extend so far into the bore 412, that in this Aus ⁇ management example, a light interior with a diameter of 0.9 mm remains.
- the tongues 414 are plastically deformable so that one end of a solid conductor 118 or a valve contact 114 can be inserted into the bore 412. During the deformation, the tongues 414 form barbs, so that the solid conductor 118 or the valve contact 114 once inserted into the bore 412 has been, can be removed again only under greatly increased effort again from this. In addition, the tongues 414 provide an electrically conductive connection between the sivleiter 118 or the valve contact 114 and the electrically conductive Vietnamesesele ⁇ element 410 ago.
- FIG. 5 shows an embodiment of a connection between a connecting element 410 and a solid conductor 118 or a valve contact 114 that is an alternative to FIG. 4.
- it is a ram contact, in which one end of the solid conductor 118 and the valve contact 114 can be introduced into a groove 510 at one end of the electrically conductive connection 410 under pressure.
- the groove has a region 512 with plastically deformable serrations and a widened insertion region 514 with bevelled edges. If one end of the solid conductor 118 or of the valve contact 114 is inserted or driven into the groove 510 under an increased force, the teeth deform plastically in region 512.
- FIGS. 6 and 7 possible embodiments of the connection between a valve contact 114 and a solid conductor 118 are shown by way of example.
- the exemplary embodiments show that the possible connections between solid conductor 118 or valve contact 114 and the electrically conductive connection element 410 can be combined as desired.
- one end of a valve contact 114 is connected in an electrically conductive manner to the electrically conductive connecting element 410 by means of a non-positive connection 610 according to the exemplary embodiment illustrated in FIG.
- one end of the solid conductor 118 is conductively connected to the connection element 410 via an electrically conductive plug connection 612.
- This plug-in connection 612 can be released again by the application of force, but the stability of the connection 612 between the solid conductor 118 and the valve contact 114 is ensured to such an extent that the solid conductor 118 can not fall out of the plug connection 612 again due to its own weight.
- valve contact 114 and the mass divider 118 are enveloped by an electrically insulating plastic 210.
- This enclosure which has already been described above, can be done in particular by an injection molding process.
- FIG. 7 shows a preferred embodiment which is alternative to FIG. 6, in which both the connection of the valve contact 114 to the electrically conductive connecting element 410 and the connection of one end of a solid conductor 118 to the connection element 410 form-fitting connections according to Figure 4 are used. Also in this embodiment, the entire connection is encapsulated by an electrically insulating thermoplastic 210. In contrast to the connection 612 in the exemplary embodiment according to FIG. 6, however, after encapsulation no destructive separation of the solid conductor 118 from the electrically conductive connection element 410 is possible. However, the remaining function of the embodiment according to FIG. 7 is identical to the function of the embodiment according to FIG. 6.
- FIG. 8 is a perspective view of another possible embodiment of the connection between the valve contacts 114 and the solid conductors 118.
- the connecting elements 410 each have at one end a positive connection 610 according to the exemplary embodiment illustrated in FIG.
- the connecting elements 410 have a ram contact 810 according to the exemplary embodiment illustrated in FIG. 5, via which the connecting elements 410 can be connected to the ends of the solid conductors 118.
- the entire connection is encapsulated by an electrically insulating thermoplastic 210, but in this exemplary embodiment all contacts are combined by a single encapsulation 210.
- the remaining mode of operation of the exemplary embodiment according to FIG. 8 is identical to the exemplary embodiments according to FIGS. 6 and 7.
- FIG. 9 shows a method according to the invention for producing a fuel injector.
- solid conductors 118 and connections according to the embodiments shown above or similar compounds of the invention are used.
- the illustrated method steps do not necessarily have to be performed in the order presented.
- Various method steps can also be carried out simultaneously, and additional method steps not shown in FIG. 9 can be carried out.
- a first module of a fuel injector for example a control module 132, is produced.
- This first module has at least one externally accessible injector body contact 116.
- the injector body contact 116 is electrically conductively connected to an electrical plug contact 122.
- a second module for example a nozzle module 140, is produced, which has at least one electrically controllable valve 112. Furthermore, the electrically controllable valve 112 has electrical valve contacts 114.
- the at least one electrical valve contact 114 is connected to at least one solid conductor 118.
- the solid conductor 118 should have the properties described above. The connection between the solid conductor 118 and the valve contact 114 takes place in each case directly or via an electrically conductive connection element 410 as described above via one of the connections 310, 610, 612, 810 according to the invention.
- a fourth method step 916 the two modules 132, 140 are then connected directly or indirectly to a single injector body.
- additional modules 134, 136, 138 can be introduced (see above), with the solid conductors 118 being guided, in particular, through conductor channels 120.
- the at least one solid conductor 118 is reversibly connected directly or indirectly (eg via plug contacts 122 and an additional electrical connection 144) to the at least one injector body contact 116.
- the method described for producing the fuel injectors represents a considerable improvement over conventional methods in which electrical cables are used for connection between the valve contacts 114 and the injector body contacts 116. Elaborate soldering processes and tedious passage of the cables through the individual segments of the injector body 110 omitted.
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- 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
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/718,735 US8322629B2 (en) | 2004-11-24 | 2005-10-31 | Electrical bridge in fuel injectors |
JP2007541902A JP4571983B2 (ja) | 2004-11-24 | 2005-10-31 | 燃料インジェクタおよび燃料インジェクタを製作する方法 |
EP05801699A EP1817492B1 (de) | 2004-11-24 | 2005-10-31 | Elektrische überbrückung in kraftstoffinjektoren |
DE502005004592T DE502005004592D1 (de) | 2004-11-24 | 2005-10-31 | Elektrische überbrückung in kraftstoffinjektoren |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004056667A DE102004056667A1 (de) | 2004-11-24 | 2004-11-24 | Elektrische Überbrückung in Kraftstoffinjektoren |
DE102004056667.4 | 2004-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006056520A1 true WO2006056520A1 (de) | 2006-06-01 |
Family
ID=35447479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/055652 WO2006056520A1 (de) | 2004-11-24 | 2005-10-31 | Elektrische überbrückung in kraftstoffinjektoren |
Country Status (6)
Country | Link |
---|---|
US (1) | US8322629B2 (de) |
EP (1) | EP1817492B1 (de) |
JP (1) | JP4571983B2 (de) |
AT (1) | ATE399934T1 (de) |
DE (2) | DE102004056667A1 (de) |
WO (1) | WO2006056520A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8074625B2 (en) | 2008-01-07 | 2011-12-13 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
EP2080892A1 (de) * | 2008-01-16 | 2009-07-22 | Delphi Technologies, Inc. | Kraftstoffinjektor |
CN102713236B (zh) * | 2009-08-27 | 2015-03-11 | 麦卡利斯特技术有限责任公司 | 燃料喷射器致动器组件及使用和制造的相关方法 |
JP5734294B2 (ja) * | 2009-08-27 | 2015-06-17 | マクアリスター テクノロジーズ エルエルシー | 燃料噴射器 |
CN104728001A (zh) * | 2009-08-27 | 2015-06-24 | 麦卡利斯特技术有限责任公司 | 燃料喷射器致动器组件及使用和制造的相关方法 |
DE102009029529A1 (de) * | 2009-09-17 | 2011-03-24 | Robert Bosch Gmbh | Magnetventil mit direkt kontaktierter Steuereinheit |
HUE025828T2 (en) * | 2010-10-20 | 2016-05-30 | Delphi Int Operations Luxembourg Sarl | Improved fuel injector |
US20140217204A1 (en) * | 2011-09-08 | 2014-08-07 | Inernational Engine Intellectual Property Company, Llc | Fuel injector solenoid and terminal assembly |
US20140131466A1 (en) | 2012-11-12 | 2014-05-15 | Advanced Green Innovations, LLC | Hydraulic displacement amplifiers for fuel injectors |
US9309846B2 (en) | 2012-11-12 | 2016-04-12 | Mcalister Technologies, Llc | Motion modifiers for fuel injection systems |
GB201408060D0 (en) * | 2014-05-07 | 2014-06-18 | Delphi Int Operations Lux Srl | Connector assembly for a fuel injector |
DE102014216834A1 (de) * | 2014-08-25 | 2016-02-25 | Robert Bosch Gmbh | Kraftstoffinjektor |
US10544771B2 (en) * | 2017-06-14 | 2020-01-28 | Caterpillar Inc. | Fuel injector body with counterbore insert |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3800203A1 (de) * | 1988-01-07 | 1989-07-20 | Atlas Fahrzeugtechnik Gmbh | Kraftstoffeinspritzventil |
DE19858127A1 (de) * | 1997-12-19 | 1999-06-24 | Caterpillar Inc | Brennstoffeinspritzvorrichtung mit Elektromagnet und Anschlußanordnungen |
US6565020B1 (en) * | 2002-07-16 | 2003-05-20 | Detroit Diesel Technology | Electromagnetic actuator and stator design in a fuel injector assembly |
DE10317148A1 (de) * | 2003-04-14 | 2004-10-28 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4033513A (en) * | 1975-11-06 | 1977-07-05 | Allied Chemical Corporation | Electromagnetically operated valve |
US4434765A (en) * | 1981-10-30 | 1984-03-06 | Colt Industries Operating Corp. | Fuel injection apparatus and system |
US4725041A (en) * | 1984-04-16 | 1988-02-16 | Colt Industries Inc | Fuel injection apparatus and system |
US4950171A (en) * | 1989-08-11 | 1990-08-21 | Itt Corporation | Fuel injector connector system |
-
2004
- 2004-11-24 DE DE102004056667A patent/DE102004056667A1/de not_active Withdrawn
-
2005
- 2005-10-31 EP EP05801699A patent/EP1817492B1/de not_active Not-in-force
- 2005-10-31 US US11/718,735 patent/US8322629B2/en not_active Expired - Fee Related
- 2005-10-31 WO PCT/EP2005/055652 patent/WO2006056520A1/de active IP Right Grant
- 2005-10-31 JP JP2007541902A patent/JP4571983B2/ja not_active Expired - Fee Related
- 2005-10-31 DE DE502005004592T patent/DE502005004592D1/de active Active
- 2005-10-31 AT AT05801699T patent/ATE399934T1/de not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3800203A1 (de) * | 1988-01-07 | 1989-07-20 | Atlas Fahrzeugtechnik Gmbh | Kraftstoffeinspritzventil |
DE19858127A1 (de) * | 1997-12-19 | 1999-06-24 | Caterpillar Inc | Brennstoffeinspritzvorrichtung mit Elektromagnet und Anschlußanordnungen |
US6565020B1 (en) * | 2002-07-16 | 2003-05-20 | Detroit Diesel Technology | Electromagnetic actuator and stator design in a fuel injector assembly |
DE10317148A1 (de) * | 2003-04-14 | 2004-10-28 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
Also Published As
Publication number | Publication date |
---|---|
DE102004056667A1 (de) | 2006-06-01 |
US20080185461A1 (en) | 2008-08-07 |
EP1817492B1 (de) | 2008-07-02 |
JP4571983B2 (ja) | 2010-10-27 |
ATE399934T1 (de) | 2008-07-15 |
EP1817492A1 (de) | 2007-08-15 |
US8322629B2 (en) | 2012-12-04 |
DE502005004592D1 (de) | 2008-08-14 |
JP2008520888A (ja) | 2008-06-19 |
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