WO2016102255A1 - Einspritzventil zur injektion eines fluids, verwendung eines einspritzventils und verfahren zur herstellung eines einspritzventils - Google Patents
Einspritzventil zur injektion eines fluids, verwendung eines einspritzventils und verfahren zur herstellung eines einspritzventils Download PDFInfo
- Publication number
- WO2016102255A1 WO2016102255A1 PCT/EP2015/079898 EP2015079898W WO2016102255A1 WO 2016102255 A1 WO2016102255 A1 WO 2016102255A1 EP 2015079898 W EP2015079898 W EP 2015079898W WO 2016102255 A1 WO2016102255 A1 WO 2016102255A1
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- WO
- WIPO (PCT)
- Prior art keywords
- injection valve
- valve
- inner pole
- gap
- region
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 117
- 239000007924 injection Substances 0.000 title claims abstract description 117
- 239000012530 fluid Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 230000005291 magnetic effect Effects 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 239000002907 paramagnetic material Substances 0.000 claims abstract description 18
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 3
- 230000008859 change Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 208000006011 Stroke Diseases 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
-
- 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
-
- 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
-
- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9053—Metals
- F02M2200/9061—Special treatments for modifying the properties of metals used for fuel injection apparatus, e.g. modifying mechanical or electromagnetic properties
Definitions
- Injection valve for injecting a fluid, using an injection valve and method for producing an injection valve
- the invention relates to an injection valve for injecting a fluid, in particular a fuel fluid, into an intake passage or into a combustion space of a cylinder of an internal combustion engine, wherein the injection valve has an electromagnetic actuator comprising a magnetic circuit.
- the invention relates to a use of such an injection valve and a method for producing such an injection valve.
- Electromagnetically actuated injection valves of the aforementioned type can be used quite generally for the metering of fluids.
- These injectors are preferably used in fuel systems of internal combustion engines for injecting fuel into a combustion chamber or into an intake passage (of a cylinder) of the internal combustion engine, wherein the internal combustion engine typically comprises a plurality of cylinders.
- the precise adherence to a given injection quantity is of decisive importance for the emission behavior and consumption behavior of the internal combustion engine.
- the amount of fuel injected depends, inter alia, on an opening duration of the valve and thus, in particular, on an actual hydraulic system
- Opening and closing time of the valve which can differ significantly from a real electric actuation start of the actuator with real valves. Therefore, with knowledge of the electrical control start and end, a precise fluid metering can generally not be carried out.
- an electronic control unit provides a fixed drive time and the injection valve responds to it via its magnetic circuit (ie, opens for the injection of fuel).
- the magnetic properties are designed so that the magnetic circuit enables the shortest possible switching times and small tolerances in the injection.
- the electromagnetic actuator of the injection valve is controlled controlled, in particular in a manner that is tailored to the respective injection valve individually.
- various features of the injection process can be detected, in particular the determination of the opening time and / or the closing time of the injection valve.
- the object of the invention is therefore to contribute to an improvement of the feature recognition in the feedback signal, so that based on an analysis of detected signals or in particular the feedback signal at least one operating state of the injector and / or at least a change in state of the injector better, in particular more accurate or with a lower Signal evaluation effort, is detectable.
- Based on the feedback of the specific valve behavior (for example, the timing of the valve opening or closing or other system functions such as decelerations to minimize noise) is then controlled to the target size and thus increases the accuracy.
- the injection valve is designed such that the feedback of the injection valve - detectable by means of the feedback signal or by the detection of the time course of at least one electrical operating variable of the electromagnetic actuator, in particular on the current and voltage curve - is improved. A better detection of the opening and closing time can then be used to increase the accuracy of the control, or allows them only.
- the injection valve according to the invention, the inventive use of the injection valve and the method for producing an injection valve according to the independent claims have the advantage over the prior art that an improved feature expression in the remindmeldesig- signal or in the current or voltage signal for opening or the closure of the injection valve or the valve needle can be brought about by specific measures on the injection valve.
- the focus is on the electromagnetic properties of the fuel injector.
- the aim of the measures is, in particular, to increase the proportion of the magnetic flux through the gap (or the working air gap) of the valve as far as possible or also the restoring force of the valve
- the injection valve is not optimized as a stand-alone component as in the prior art, but for the interaction with the regulated operation or a regulated mode of operation.
- the characteristics of the features required for the execution of the control (detected signal of the injection valve or in the feedback signal) play the central role here.
- the injection valve is not optimized, as in the prior art, for the properties of a stand-alone component, but for the interaction with the control or with the controlled operation.
- the central aspect is the maximization of the magnetic flux in the gap of the magnetic actuator (working air gap). This maximizes the effect of the armature or needle movement on the current and voltage signals in terms of the magnitude of the buckling in the signal.
- the valve sleeve has either paramagnetic material properties-both in the region of the gap between the inner pole and the magnet armature-or paramagnetic material properties in the region of the gap between the inner pole and the magnet armature and outside this range having ferromagnetic material properties, wherein it is provided according to the invention, that the effort for this purpose is comparatively low, ie, such a valve sleeve is inexpensive to produce.
- valve sleeve is formed as a deep-drawn part and continuously (ie substantially over its entire length) has paramagnetic material properties and is not annealed throughout, especially not in a temperature range between 350 ° C and 700 ° C is annealed ,
- the valve sleeve is particularly inexpensive to produce and yet the magnetic flux in the working air gap (by the overall paramagnetic properties of the valve sleeve) is increased or at least not reduced.
- valve sleeve is realized as a deep-drawn part, wherein the valve sleeve in the region of the gap between the inner pole and the armature has paramagnetic material properties and outside of this gap region ferromagnetic material properties, wherein the valve sleeve is annealed outside the gap region , is annealed in particular in a temperature range between 350 ° C and 550 ° C, wherein the gap region undergoes cooling during the annealing process, in particular by means of cooled nitrogen.
- valve sleeve is treated in the region of the air gap-in a comparatively cost-effective manner-so that the magnetic resistance is increased there, so that the magnetic flux in the region of the air gap is increased, because only a smaller one Part of the magnetic flux (due to the higher magnetic resistance of the material of the valve sleeve) over the material of the valve sleeve is lost (bypass) and thus does not act in the air gap.
- the injection valve has a valve spring, wherein the spring force of
- Valve spring greater than 4 N, in particular greater than 4.5 N is. This is it in Particularly advantageously according to the invention possible that the amount of fluid or fuel quantity can be measured as accurately as possible at one or more An horrverdauern the injector.
- a comparatively large spring force of the valve spring it is advantageously possible that a comparatively large linear metering range can be realized so that the spring force for the linearity can be set optimally and the accuracy of the fluid quantity or fuel quantity can be ensured by the control.
- the electromagnetic actuator is controlled in a controlled manner by detecting the time profile of at least one electrical operating variable of the electromagnetic actuator and thus obtaining information about at least one operating state of the injection valve and / or about at least one state change of the injection valve in that various features of the injection process can be detected by the detection of at least one feedback signal, in particular the determination of the opening time and / or the closing time of the injection valve.
- Another object of the present invention relates to the use of an injection valve according to the invention in a method for operating the injection valve, wherein the electromagnetic actuator is controlled controlled by the timing of at least one electrical operating variable of the electromagnetic actuator - in particular during a test drive of the injection valve - is detected and As a result, information about at least one operating state of the injection valve and / or about at least one change in state of the injection valve can be obtained, so that the detection of at least one feedback signal results in different characteristics of the injector.
- gangs are detectable, in particular the determination of the opening time and / or the closing time of the injection valve.
- this principle according to the invention makes possible a particularly precise determination of the occurrence of an operating state or operating state change of the injection valve to be observed. In this way, under specification of corresponding characterizing features, in particular also an actual hydraulic opening time of the valve can be determined.
- Another object of the present invention relates to a method for producing an injection valve according to the invention, wherein the valve sleeve in the region of the gap between the inner pole and the armature has paramagnetic material properties and outside this range ferromagnetic material properties, wherein the valve sleeve is annealed outside the gap region, in particular in a Temperature range between 350 ° C and 55 ° C is annealed, wherein the gap region is cooled during the annealing process, in particular by means of cooled nitrogen.
- Figure 1 shows a schematic representation of an internal combustion engine with a plurality of inventively operated injection valves.
- Figures 2a and 2b show schematically a detail view of an injection valve of Figure 1 in two different operating conditions.
- FIG. 3 shows schematically a time profile of different operating variables of the injection valve operated according to the invention.
- FIG. 4 shows schematically an example of an injection valve according to the invention.
- An internal combustion engine carries in Figure 1 in total the reference numeral 10. It comprises a tank 12, from which a conveyor system 14 fuel in a
- Distribution system 16 promotes, which is for example a common rail. At this several electromagnetically actuated injectors 18 are connected, which inject the fuel directly into them associated combustion chambers 20 or in intake pipes of the combustion chambers 20. The operation of the internal combustion engine 10 is controlled or regulated by a control and regulating device 22 which, among other things, also controls the injection valves 18.
- FIGS. 2a and 2b schematically show the injection valve 18 according to FIG. 1 in two different operating states.
- the injection valve 18 has an electromagnetic actuator which has a magnetic coil 26 and a magnet armature 30 cooperating with the magnetic coil 26.
- the magnet armature 30 is operatively connected to a valve needle 28 of the injection valve 18, for example so that the magnet armature 30 is movable relative to the valve needle 28 axially relative to a direction of movement of the valve needle 28 which is vertical in FIG.
- the mountability of the injection valve 18 is improved and an undesired bounce of the valve needle 28 upon impact with its valve seat 38 is reduced.
- valve needle 28 is acted upon by a valve spring 36 as shown in Figure 2a with a corresponding spring force against the valve seat 38 in the region of the housing.
- the injection valve 18 is shown in its closed state, in which no fuel injection takes place.
- the actuator 26, 30 over a predetermined drive time away with a An Tavern- current
- Combustion chamber 20 ( Figure 1) are injected.
- the valve needle 28 moves back onto its valve seat 38 under the action of the spring force exerted by the valve spring 36 and carries the magnet armature 30 with it.
- an operating method is carried out in order to obtain information about at least one operating state or a state change of the injection valve 18.
- a test drive is performed, during which the actuator 26, 30 is acted upon by a predefinable drive current I.
- At least simultaneously with the execution of the test drive at least one time profile of at least one electrical operating variable of the actuator 26, 30 is detected during the test drive.
- the electromagnetic actuator 26, 30 in particular a time course of a voltage applied to the magnetic coil 26 of the actuator voltage and / or a time course of the current flowing through the solenoid current I.
- a feature in the sense of the present invention can be in particular a local extremum and / or a sequence of a plurality of local extremes and / or another particular time profile of the operating variables current and / or voltage.
- the characterizing feature of interest is found during the evaluation and the obtained information about the operating state or the operating state change continues to be used, for example for the regulation of a future operation of the injection valve 18.
- a plurality of test drives are also possible. In particular, it is advantageously possible according to the invention to determine an actual hydraulic opening time of the injection valve 18.
- the hydraulic opening time of the injection valve 18 is determined by the fact that the valve needle 28 lifts from its valve seat 38. This lifting of the valve needle 28 correlates with a specific time profile of the first time derivative of the drive current I through the magnetic coil 26.
- FIG. 3 shows a first time profile 11 of a drive current I, with which the magnetic coil 26 starts from the closed state depicted in FIG of the valve 18 - is driven to enable the injection valve 18 in its open state.
- a time profile h1 of the needle stroke h resulting during activation with the first drive current 11 is likewise shown in FIG.
- FIG. 3 also shows, in addition to the first drive current 11, a time profile of a second drive current 12, as it appears under control of the
- Actuator 26, 30 results in a slightly reduced driving voltage.
- the change in operating state characterizing the transition from the closed state to the open state takes place somewhat later with reference to the stroke progression h1, which results during the control with a larger on-control voltage.
- Drive current 12 may be considered to be the actual hydraulic drive start, i. Opening time, the time T2 are determined according to the invention, which in turn corresponds to a local minimum Min2 in the first time derivative dl2 of the second drive current 12.
- FIG. 4 shows, by way of example, an electromagnetically actuable injection valve 18 in the form of a fuel injection valve for fuel injection systems, for example for use in mixture-compressing, spark-ignited internal combustion engines.
- the injection valve 18 has a coil 1 surrounded by a magnetic, serving as an inner pole and partially as a fuel flow largely tubular core 2.
- the magnetic coil 1 is of an outer, sleeve-shaped and stepped running, z.
- the magnet coil 1, the core 2 and the valve jacket 5 together form an electrically activatable actuating element or a magnetic circuit or an electromagnetic actuator.
- valve sleeve 6 While embedded in a bobbin 3 magnetic coil 1 with a winding 4 surrounds a valve sleeve 6 from the outside, the core 2 in an inner, concentric with a valve longitudinal axis 10 'extending opening 1 1 of the valve sleeve 6 is introduced.
- the valve sleeve 6 is elongate and thin-walled.
- the opening 1 1 serves, inter alia, as a guide opening for a valve needle 28 which is axially movable along the valve longitudinal axis 10.
- the valve sleeve 6 extends in the axial direction, for example over approximately half the total axial extent of the injection valve.
- the valve needle 28 is integrally connected in the example of Figure 4 with the armature 30 and is of the tubular armature 30, also a tubular needle portion and formed a spherical valve closing body.
- the actuation of the injection valve takes place in a known manner electromagnetically.
- Closing the injection valve is the electromagnetic circuit with the solenoid coil 1, the inner core 2, the outer valve shell 5 and the armature 30.
- the armature 30 is aligned with the core 2.
- the core 2 e.g. Also serving as an inner pole cover part, which closes the magnetic circuit may be provided.
- an adjustment in the form of an adjusting sleeve 29 is inserted.
- the adjusting sleeve 29 is used to adjust the spring bias of the voltage applied to the adjusting sleeve 29 return spring 36, which in turn is supported with its opposite side to the valve needle 28 in the region of the armature 30.
- the valve sleeve 6 either continuously - in the region of the gap between the inner pole 2 and the armature 30 - paramagnetic material properties, or it has in the gap between the inner pole 2 and the armature 30 paramagnetic material properties and outside this range ferromagnetic material properties .
- the valve sleeve 6 is realized as a deep-drawn part, wherein the valve sleeve 6 has paramagnetic material properties throughout and is not annealed throughout, in particular not in a temperature range between 350 ° C and 55 ° C is annealed.
- the valve sleeve 6 is realized as a deep-drawn part, wherein the valve sleeve 6 in the region of the gap between the inner pole 2 and the magnet armature 30 paramagnetic material properties and outside this gap range fer-. having magnetic material properties, wherein the valve sleeve 6 is annealed outside the gap region, in particular in a temperature range between 350 ° C and 55 ° C is annealed, wherein the gap region undergoes cooling during the annealing, in particular by means of cooled nitrogen.
- the injection valve 18 has a valve spring 36, wherein the spring force of the valve spring 36 is greater than 4 N, in particular greater than 4.5 N.
- the control quality of the injection valve can be improved by a combination of certain properties of the magnetic circuit and a control function, so that a control function for the injection of a fluid through the injection valve can be realized.
- the pot surrounding the magnetic coil and the sleeve of the magnetic circuit with its magnetic resistance R m are decisive for the inventive realization of the feature expression in the feedback signal of the injection valve.
- these components are typically annealed to obtain a reduced magnetic resistance R m . According to the invention, such annealing operation is avoided in the production of the injection valve, which improves the expression of the characteristic for the regulation or the detectability of the characteristic for the regulation.
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- 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)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/538,735 US20170350356A1 (en) | 2014-12-22 | 2015-12-15 | Injector for injecting a fluid, use of an injector and method for manufacturing an injector |
CN201580070349.5A CN107407219B (zh) | 2014-12-22 | 2015-12-15 | 用于喷射流体的喷射阀、喷射阀的使用和用于制造喷射阀的方法 |
BR112017011635-9A BR112017011635B1 (pt) | 2014-12-22 | 2015-12-15 | Válvula de injeção para a injeção de um fluido combustível, uso de uma válvula de injeção e processo para a produção de uma válvula de injeção |
JP2017528907A JP6498293B2 (ja) | 2014-12-22 | 2015-12-15 | 流体を噴射させるための噴射弁、噴射弁の使用方法および噴射弁の製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102014226811.7 | 2014-12-22 | ||
DE102014226811.7A DE102014226811A1 (de) | 2014-12-22 | 2014-12-22 | Einspritzventil zur Injektion eines Fluids, Verwendung eines Einspritzventils und Verfahren zur Herstellung eines Einspritzventils |
Publications (1)
Publication Number | Publication Date |
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WO2016102255A1 true WO2016102255A1 (de) | 2016-06-30 |
Family
ID=54884040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2015/079898 WO2016102255A1 (de) | 2014-12-22 | 2015-12-15 | Einspritzventil zur injektion eines fluids, verwendung eines einspritzventils und verfahren zur herstellung eines einspritzventils |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170350356A1 (de) |
JP (1) | JP6498293B2 (de) |
CN (1) | CN107407219B (de) |
BR (1) | BR112017011635B1 (de) |
DE (1) | DE102014226811A1 (de) |
WO (1) | WO2016102255A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107869399A (zh) * | 2016-09-27 | 2018-04-03 | 罗伯特·博世有限公司 | 控制能开关的阀、尤其是机动车的内燃机的喷射阀的方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017222501A1 (de) * | 2017-12-12 | 2019-06-13 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
CN108447647B (zh) * | 2018-04-16 | 2023-07-11 | 浙江工业大学 | 一种基于电励磁的湿式四磁柱式电磁铁 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4237405A1 (de) * | 1991-12-17 | 1993-06-24 | Mitsubishi Electric Corp | |
WO1995016126A1 (de) * | 1993-12-09 | 1995-06-15 | Robert Bosch Gmbh | Elektromagnetisch betätigbares ventil |
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- 2014-12-22 DE DE102014226811.7A patent/DE102014226811A1/de active Pending
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2015
- 2015-12-15 JP JP2017528907A patent/JP6498293B2/ja active Active
- 2015-12-15 CN CN201580070349.5A patent/CN107407219B/zh active Active
- 2015-12-15 BR BR112017011635-9A patent/BR112017011635B1/pt active IP Right Grant
- 2015-12-15 US US15/538,735 patent/US20170350356A1/en not_active Abandoned
- 2015-12-15 WO PCT/EP2015/079898 patent/WO2016102255A1/de active Application Filing
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WO1995016126A1 (de) * | 1993-12-09 | 1995-06-15 | Robert Bosch Gmbh | Elektromagnetisch betätigbares ventil |
US6497221B1 (en) * | 2000-11-06 | 2002-12-24 | Robert Bosch Corporation | Feedback tailoring of fuel injector drive signal |
DE102008040550A1 (de) * | 2008-07-18 | 2010-01-21 | Robert Bosch Gmbh | Verfahren zur Herstellung eines metallischen Verbundbauteils, insbesondere für ein elektromagnetisches Ventil |
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DE102010064273A1 (de) * | 2010-12-28 | 2012-06-28 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
WO2013124100A1 (de) * | 2012-02-23 | 2013-08-29 | Robert Bosch Gmbh | Verfahren zum herstellen eines metallischen bauteils |
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CN107869399A (zh) * | 2016-09-27 | 2018-04-03 | 罗伯特·博世有限公司 | 控制能开关的阀、尤其是机动车的内燃机的喷射阀的方法 |
CN107869399B (zh) * | 2016-09-27 | 2022-02-01 | 罗伯特·博世有限公司 | 控制能开关的阀、尤其是机动车的内燃机的喷射阀的方法 |
Also Published As
Publication number | Publication date |
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BR112017011635B1 (pt) | 2022-10-04 |
JP6498293B2 (ja) | 2019-04-10 |
BR112017011635A2 (pt) | 2018-01-16 |
US20170350356A1 (en) | 2017-12-07 |
DE102014226811A1 (de) | 2016-06-23 |
JP2018500496A (ja) | 2018-01-11 |
CN107407219A (zh) | 2017-11-28 |
CN107407219B (zh) | 2020-10-30 |
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