WO2015032967A1 - Anordnung mit einem ferromagnetischen werkstück und einer um zumindest einen abschnitt des werkstücks angeordneten heizwicklung - Google Patents
Anordnung mit einem ferromagnetischen werkstück und einer um zumindest einen abschnitt des werkstücks angeordneten heizwicklung Download PDFInfo
- Publication number
- WO2015032967A1 WO2015032967A1 PCT/EP2014/069169 EP2014069169W WO2015032967A1 WO 2015032967 A1 WO2015032967 A1 WO 2015032967A1 EP 2014069169 W EP2014069169 W EP 2014069169W WO 2015032967 A1 WO2015032967 A1 WO 2015032967A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- workpiece
- heating coil
- heating
- arrangement
- ferromagnetic
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 69
- 238000004804 winding Methods 0.000 title claims abstract description 23
- 230000005294 ferromagnetic effect Effects 0.000 title claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 230000005291 magnetic effect Effects 0.000 description 10
- 230000018109 developmental process Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/362—Coil arrangements with flat coil conductors
-
- 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
- F02D2041/2065—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control being related to the coil temperature
-
- 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
- F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
- F02D2041/2072—Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0606—Fuel temperature
-
- 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
-
- 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
- F02M2200/95—Fuel injection apparatus operating on particular fuels, e.g. biodiesel, ethanol, mixed fuels
- F02M2200/956—Ethanol
-
- 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
- F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
- F02M2700/07—Nozzles and injectors with controllable fuel supply
- F02M2700/077—Injectors having cooling or heating 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/03—Heating of hydrocarbons
Definitions
- Fuel for gasoline engines - especially bioethanol - can be heated to improve the cold start behavior by means of a heater located in the injection valve.
- DE 10 2011 085 680 AI discloses such an injection valve with a heating coil arranged around the fuel channel which inductively heats metallic or ferromagnetic parts of the valve by driving with high-frequency current.
- FIG. 1 shows such a known fuel injection valve 1.
- Fuel injection valve 1 is opened or closed by a magnetically actuated ⁇ valve needle 2.
- the valve needle 2 is movably mounted in a fuel passage 3, wherein the fuel passage 3 is formed in a valve housing 7.
- a winding support 5 is arranged with a wound thereon heating coil 6.
- a protective sheath 9 of this preferably made of plastic arranged. The surrounded by the heating coil 6 part of the valve housing 7 and possibly the valve needle serve as a workpiece to be heated.
- the heating coil 6 can be energized, for example according to the US 3,506,907 by means of a power semiconductor switch full bridge circuit with energy, wherein a series circuit of a capacitor and the heating coil is connected in the bridge branch.
- the bridge circuit is operated in series resonance, so that by the thereby taking place energy ⁇ transfer from the motor vehicle battery, the valve housing and possibly the metallic valve needle are heated inductively.
- DE 102011 085 085 AI it is also known to operate such a heating coil together with a capacitor alternatively in a parallel resonant circuit of an oscillator circuit.
- Control driver electronics The resonant energy transfer has proven to be very efficient, but for technical implementation remplireaktanzen among other things in the form of said capacitors are required.
- these components have the disadvantage that they are relatively large / bulky and expensive, making their use unattractive in ECUs of automotive electronics.
- four power output stages are required, so that determine the reactances to a significant extent size and cost of the control driver electronics.
- the thickness of the layer of the highly conductive material is less than 50ym, wherein the highly conductive material is preferably made of copper.
- the active power which is available as heating power, be increased significantly due to the lower ohmic resistance of the workpiece to be heated.
- the heating coil is surrounded at its non-workpiece facing sides by a ferromagnetic material which is in contact with the workpiece in the region of the ends of the heating coil and has at least one continuous interruption in the longitudinal direction of the heating coil.
- the interruption in the longitudinal direction of the jacket of the heating coil is necessary in order to prevent eddy currents in the jacket.
- Heating coil arranged a thin layer of insulating material.
- this is formed with a good electrical conductivity wire with rectangular cross-section and electrically insulating coating.
- FIG. 1 shows a fuel injection valve with a heating coil for inductive heating according to the prior art
- Figure 2 shows a transformer equivalent circuit diagram for a heating ⁇ winding on a workpiece
- FIG. 3 shows a drive circuit for a heating coil for inductive heating
- Figure 4 shows an inventive arrangement with a than
- An arrangement according to the invention which is formed with a heating coil 6 and its enclosed workpiece 7, 2, in particular a portion of a fuel injection valve stem, which is shown in Figure 1, can be considered as a transformer whose equivalent circuit diagram is shown in Figure 2.
- the valve stem portion in addition to its function as an iron core to guide the magnetic field and the secondary winding with a single, short-circuited turn. From the electrical resistance of the valve body and its geometry results in a resistance in the circumferential direction, which represents a secondary load resistance R_Is.
- the secondary voltage Usec is formed by the transformed voltage on the heating coil Uprim.
- FIG. 3 An equivalent circuit diagram with transformed, effective load resistance R_I and a full bridge circuit with power transistors Tl, T2, T3, T4 as an indication of control electronics is shown in FIG. 3
- the transistors Tl and T4 or T2 and T3 are alternately periodically switched on and off. Due to the inductance of the heating coil and this mainly due to the main inductance L_h, the time course of the current through the heating coil is effected by a nearly linear current increase or decrease. The smaller the value of the main inductance L_h, the steeper the rising or falling edges, which leads to an unfavorable ratio of active to reactive power. It is therefore desired as large a main inductance L_h.
- the heater voltage Uprim is - determined by the supply from the vehicle electrical system voltage -.
- the secondary effective resistance of the valve body material is largely determined by design.
- ge ⁇ remains according to the above formula as the only free parameter, the gear ratio of the transformer, so the number of turns of the heating coil.
- a reduction in the number of turns reduces the primary effective resistance R_I and thus increases the heating power.
- a reduction in the number of turns would be required by about 30%. However, this would result in a halving of the value of the main inductance L_h.
- the associated increase in the reactive current share is not desirable or acceptable.
- This coating 12 shown in FIG. 4 effects a further resistance connected in parallel with the valve body resistance, so that the entire load resistance R_I is thereby reduced. Since copper has a significantly higher conductance than steel, a layer thickness of less than 50 microns is sufficient. An increase in the layer thickness causes a reduction of the load resistance and thus an increase in the heating power. The adjustment of layer thickness and number of turns now allows on one hand the load resistor R_I for a desired heating power ⁇ and secondly at the same time to adjust the minimum required value of the main inductance L_h.
- the heating coil is housed in the injection valve, however, there are considerable space limitations in their design. In order to still be able to represent the desired main inductance, it is necessary to close the previously open magnetic circuit of the arrangement of workpiece and heating coil. If the conclusion of the magnetic circuit outside the valve through the air, this increases the resistance of the magnetic circuit, resulting in a reduction of the coil inductance.
- a yoke 15 of a ferromagnetic material is now mounted (at ⁇ play, steel) outside of the coil 14, wherein at both ends of a direct contact with the workpiece 11 is provided. The magnetic circuit is thus completely closed (without air gap).
- the inference 15 is now also traversed by the magnetic field and it would - just like the workpiece 11 and the coating 12 - build up an eddy current in the circumferential direction. However, this is undesirable, since this would result in active power inference 15. Therefore, the conclusion must be fully ⁇ continuously slotted at least once in the longitudinal direction of 15 °.
- the value of the main inductance can be approximately doubled - with the same installation space and unchanged number of turns.
- Stray inductance is due to a lack of coupling between the primary and secondary windings of the transformer, whereby a part of the magnetic flux is not uniformly enclosed by both windings (stray flux).
- stray flux When using conventional winding carriers for the heating coil as shown in Figure 1, an air gap between the workpiece and the heating coil, in which a magnetic flux flows, which is not circumscribed by the secondary current.
- the value of the leakage inductance L_S we ⁇ sentlich can be reduced. This is done by dispensing with a special winding carrier and using a thin insulating coating 13 on the electrically highly conductive layer 12, ie between this and the heating coil 14th
- the heating coil 14 is carried out with an upstanding rectangular wire.
- a thin protective foil - such as the high-strength plastic Kapton - prevents damage to the winding insulation (copper enameled wire) during the joining process.
- the coating 12 preferably copper.
- the conductance of copper decreases steadily with increasing temperature (about 0.39% per centigrade) Accordingly, the load resistance R_I becomes higher impedance with increasing temperature, which leads to a reduction of the coil current.
- the coil current Isens - together with the coil voltage Vbat - measured which is indicated in Figure 3, it can be determined from the load resistance R_I. Different resistance values will be obtained for different arrangement temperatures. If this measurement at a temperature be ⁇ known arrangement - for example after a prolonged standstill of the vehicle - as can the determined load resistor R_I be assigned to an assembly temperature. Since the relationship between load resistance value and temperature is linear, it is possible from this point to assign current load resistance and extrapolated arrangement temperature. The arrangement temperature as determined in each case can now turn as the actual size for (not be required ⁇ ) are temperature control.
- the arrangement according to the invention By optimizing the arrangement according to the invention with a ferromagnetic workpiece with a heating winding arranged around at least a portion of the workpiece for inductive heating of the workpiece, it is possible to completely avoid the power reactances required in the prior art and thus substantially reduce the cost and size of the control electronics.
- the possible sensorless temperature detection avoids any costs for a temperature sensor or special, expensive ferromagnetic materials with temperature-dependent saturation magnetization.
- the overall system is characterized by a very good efficiency and low EMC radiation.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Induction Heating (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480049699.9A CN105493623A (zh) | 2013-09-09 | 2014-09-09 | 具有铁磁的工件和围绕工件的至少一个部段布置的加热绕组的装置 |
US14/917,330 US20160227610A1 (en) | 2013-09-09 | 2014-09-09 | Arrangement Having a Ferromagnetic Work Piece and a Heating Winding Arranged Around at Least One Section of the Work Piece |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013217923.5A DE102013217923A1 (de) | 2013-09-09 | 2013-09-09 | Anordnung mit einem ferromagnetischen Werkstück und einer um zumindest einen Abschnitt des Werkstücks angeordneten Heizwicklung |
DE102013217923.5 | 2013-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015032967A1 true WO2015032967A1 (de) | 2015-03-12 |
Family
ID=51541064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/069169 WO2015032967A1 (de) | 2013-09-09 | 2014-09-09 | Anordnung mit einem ferromagnetischen werkstück und einer um zumindest einen abschnitt des werkstücks angeordneten heizwicklung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160227610A1 (de) |
CN (1) | CN105493623A (de) |
DE (1) | DE102013217923A1 (de) |
WO (1) | WO2015032967A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3038053B1 (fr) * | 2015-06-26 | 2019-04-05 | Continental Automotive France | Dispositif de mesure de temperature |
DE102019115924A1 (de) * | 2019-06-12 | 2020-12-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Einspritzdüse für eine Verbrennungskraftmaschine in einem Kraftfahrzeug |
DE102019119738B4 (de) | 2019-07-22 | 2024-06-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftstoffeinspritzdüse für ein Kraftfahrzeug umfassend eine Stromversorgung eines Induktionsmittels für ein Heizmittel |
DE102019220199A1 (de) * | 2019-12-19 | 2021-06-24 | Robert Bosch Gesellschaft mit beschränkter Haftung | Vorrichtung zum Versorgen eines mobilen Multischmelzgerätes mit Heizleistung und/oder zur Temperaturmessung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0338664A1 (de) * | 1988-02-25 | 1989-10-25 | Ju-Oh Inc. | Spulenträger mit Heizspule |
JPH05288131A (ja) * | 1992-04-02 | 1993-11-02 | Nippondenso Co Ltd | 内燃機関の燃料供給装置 |
DE19915682A1 (de) * | 1998-04-07 | 1999-10-14 | Ju Oh Inc | Spritzgußdüse |
DE102006058881A1 (de) * | 2006-12-13 | 2008-06-19 | Siemens Ag | Düsenbaugruppe für ein Einspritzventil und Einspritzventil |
WO2011091121A1 (en) * | 2010-01-22 | 2011-07-28 | Continental Automotive Systems, Inc. | Parametric temperature regulation of induction heated load |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB504880A (en) * | 1937-08-07 | 1939-05-02 | Joseph Ernst Senn | Induction heating apparatus |
US3506907A (en) | 1967-10-04 | 1970-04-14 | Park Ohio Industries Inc | Gating control of a resonant bridge inverter for induction heating use |
US4331854A (en) * | 1980-02-28 | 1982-05-25 | Maryland Cup Corporation | Low frequency induction heater |
DE3415967A1 (de) | 1983-05-07 | 1984-11-22 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Induktive heizung fuer ferromagnetische materialien |
DE19921320C2 (de) * | 1998-05-12 | 2002-10-17 | Usui Kokusai Sangyo Kk | Magnetheizgerät |
DE10109411A1 (de) * | 2001-02-28 | 2002-09-05 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
US7065315B2 (en) * | 2003-06-30 | 2006-06-20 | Kabushiki Kaisha Toshiba | Fixing apparatus |
JP2006066885A (ja) * | 2004-07-29 | 2006-03-09 | Denso Corp | 燃料噴射弁 |
EP1999366A1 (de) * | 2006-03-21 | 2008-12-10 | Continental Automotive Systems Us, Inc. | Brennstoffinjektor mit induktiverhitzer |
US8967124B2 (en) * | 2006-03-21 | 2015-03-03 | Continental Automotive Systems, Inc. | Inductive heated injector using voltage transformer technology |
WO2010032416A1 (ja) * | 2008-09-17 | 2010-03-25 | ダイキン工業株式会社 | 電磁誘導加熱ユニットおよび空気調和装置 |
DE102011085085B4 (de) | 2011-10-24 | 2014-04-03 | Continental Automotive Gmbh | Schaltungsanordnung zum Zuführen von Energie zur induktiven Erwärmung zu einem Kraftstoffeinspritzventil |
DE102011085680B4 (de) | 2011-11-03 | 2013-07-04 | Continental Automotive Gmbh | Heizspule für ein Einspritzventil und Einspritzventil |
-
2013
- 2013-09-09 DE DE102013217923.5A patent/DE102013217923A1/de not_active Withdrawn
-
2014
- 2014-09-09 WO PCT/EP2014/069169 patent/WO2015032967A1/de active Application Filing
- 2014-09-09 CN CN201480049699.9A patent/CN105493623A/zh active Pending
- 2014-09-09 US US14/917,330 patent/US20160227610A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0338664A1 (de) * | 1988-02-25 | 1989-10-25 | Ju-Oh Inc. | Spulenträger mit Heizspule |
JPH05288131A (ja) * | 1992-04-02 | 1993-11-02 | Nippondenso Co Ltd | 内燃機関の燃料供給装置 |
DE19915682A1 (de) * | 1998-04-07 | 1999-10-14 | Ju Oh Inc | Spritzgußdüse |
DE102006058881A1 (de) * | 2006-12-13 | 2008-06-19 | Siemens Ag | Düsenbaugruppe für ein Einspritzventil und Einspritzventil |
WO2011091121A1 (en) * | 2010-01-22 | 2011-07-28 | Continental Automotive Systems, Inc. | Parametric temperature regulation of induction heated load |
Also Published As
Publication number | Publication date |
---|---|
CN105493623A (zh) | 2016-04-13 |
DE102013217923A1 (de) | 2015-03-12 |
US20160227610A1 (en) | 2016-08-04 |
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