WO2017194242A1 - Injektor mit verbessertem magnetaktor - Google Patents
Injektor mit verbessertem magnetaktor Download PDFInfo
- Publication number
- WO2017194242A1 WO2017194242A1 PCT/EP2017/057073 EP2017057073W WO2017194242A1 WO 2017194242 A1 WO2017194242 A1 WO 2017194242A1 EP 2017057073 W EP2017057073 W EP 2017057073W WO 2017194242 A1 WO2017194242 A1 WO 2017194242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- injector
- rolled
- magnet sleeve
- magnetic
- sleeve
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 239000002356 single layer Substances 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
- B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
- B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—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
- 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
- F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
Definitions
- the present invention relates to an injector for injecting a fluid, in particular a fuel, with an improved magnetic actuator.
- injectors for injecting fluids are in the form of
- the magnetic actuator comprises
- Magnetic circuit component which forms the magnetic circuit with the Innpol.
- a labyrinth seal is introduced in a magnetic pot forming the magnetic circuit.
- the labyrinth seal only works if the geometry is as rectangular as possible. Therefore, the outer magnetic circuit member is usually made by machining from a cylinder material.
- an injector is known from EP 1 062 421 B1, in which an inner pole is designed as a circular rolled or bent metallic strip. To reduce eddy currents, we proposed here to provide a longitudinal slot with a predetermined distance at the inner pole. This injector has proven itself in principle, but it would be desirable to have further cost advantages in the manufacture of injectors.
- Magnetic circuit component of a magnetic circuit is no longer from a cylindrical
- the outer magnetic circuit component is formed from a strip material in the form of a rolled magnet sleeve.
- a very cost-effective production method for the outer magnetic circuit component can thus be provided.
- an encapsulation of a coil arranged in the outer magnetic circuit component is thereby also significantly simplified.
- a very robust magnetic circuit for the magnetic actuator can be ensured.
- the rolled magnetic sleeve is single-layered.
- the rolled magnetic sleeve is single-layered.
- Magnetic sleeve has a first and a second abutting edge, which abut one another in the rolled state of the magnetic sleeve.
- a minimum gap of the rolled magnet sleeve becomes between the abutting edges
- the first abutment edge has at least one protruding region and the second abutment edge has a recess which is formed corresponding to the protruding region.
- the projecting region has a constriction. This results in a secure positive connection between the projecting area and the correspondingly formed recess in the form of a puzzle piece. Thereby, it can be ensured during the assembly of the rolled outer magnetic circuit component that the rolled magnetic sleeve does not accidentally open.
- a Welded connection provided on the rolled magnetic sleeve to connect the first abutting edge with the second abutting edge.
- Two welding points are particularly preferred at the ends of the rolled magnet sleeve lying in the axial direction.
- an open magnet sleeve it is also possible to use an open magnet sleeve, if it is ensured by a suitable device in the assembly that the magnet sleeve does not accidentally open.
- the open magnet sleeve is preferably slotted in the longitudinal direction.
- the rolled magnetic sleeve has a recess at a first end lying in the axial direction of the injector.
- the coil has particularly preferably electrical connecting elements, in particular two pins, which at least partially of a
- Housing portion are surrounded, wherein the housing portion is at least partially disposed in the recess of the rolled magnet sleeve.
- the recess in the rolled magnet sleeve is provided in the region of the first and second abutting edges of the magnet sleeve.
- the actuator further comprises a bottom portion, which is arranged annularly projecting on an injector housing.
- Floor area is preferably material connecting with the rolled
- Magnet sleeve connected to a second axially located end of the magnet sleeve.
- the material-connecting compound is preferably one
- connection must be a magnetic flux
- the actuator further comprises a lid which is connected to the rolled magnet sleeve at the first axially end of the magnet sleeve. Also this connection between lid and Magnetic sleeve is preferably designed material-bonding and more preferably formed by means of a welded joint.
- the lid has a slot extending in the axial direction of the injector which is arranged on the recess of the rolled magnet sleeve. This makes it possible that an even more compact structure can be realized, since the housing section, which surrounds the connection elements of the coil, can also be arranged in the slot of the cover.
- the coil comprises a separate encapsulation.
- a fluid tightness of the coil can be further increased.
- the already overmolded coil is introduced into the rolled magnet sleeve, and then tightly encapsulated at a sealing point provided on the coil with the final encapsulation, or the inner region of the magnet sleeve is again encapsulated with a built-in coil.
- a double security can be achieved in terms of tightness of the coil.
- the bottom of the magnetic circuit is preferably formed integrally with the injector.
- the injector according to the invention is particularly preferably a fuel injector for injecting fuel.
- the injector can be arranged as a directly injecting injector directly to a combustion chamber or as an injector for injection at a suction region of an internal combustion engine.
- FIG. 2 is a schematic, perspective view of an injector according to a first embodiment of the invention
- FIG. 2 shows a schematic view of the injector of FIG. 1 without a mounted magnetic circuit
- Figure 3 is a schematic view of the injector of Figure 1 with
- Figure 4 is a schematic view of a magnetic sleeve of a
- Magnetic actuator according to a second embodiment of the invention.
- the injector 1 comprises a magnetic actuator 2 in order to actuate a closing element 14, which is arranged on an end lying in the axial direction X-X of the injector 1.
- the closing element 14 is connected to an armature 21, which is movable by the magnetic actuator 2.
- the magnetic actuator 2 further includes an inner pole 22 (see Figure 2), a separator ring 26 and an outer magnetic circuit member which is provided as a rolled magnetic sleeve 23.
- the rolled magnet sleeve 23 is cylindrical and is made of a rectangular
- the rolled magnetic sleeve is single-layered and has a first abutment edge 24 and a second abutment edge 25. In the rolled state of the magnetic sleeve, the first and second abutting edges 24, 25 abut each other.
- the magnet sleeve 23 has a protruding region 4 and a recess 5. As can be seen from Figures 1 and 3, in this case is a positive
- the projecting portion 4 of this embodiment has a semicircular shape and leads over a straight neck portion to the first abutting edge 24.
- the recess 5 at the second abutment edge 25 is formed to allow a positive connection between the projecting portion 4 and the recess 5.
- the magnet sleeve 23 also has a recess 3 in the axial direction X-X. As can be seen from Figure 1, the recess 3 in the region of the first and second
- the magnetic circuit of the magnetic actuator 2 further comprises two electrical
- connection elements 8 in the form of pins.
- the electrical connection elements 8 are partially encapsulated by means of a housing section 9 (cf., FIG. 3).
- the housing portion 9 of the electrical connection elements 8 is at least partially disposed in the recess 3 in the rolled magnet sleeve 23.
- Magnetaktors 2 still injected a connector receptacle 13.
- the magnetic actuator 2 further includes a bottom portion 27 and a lid 28.
- the cover 28 is arranged on a first end of the magnet sleeve 23 lying in the axial direction X-X of the injector.
- the bottom region 27 is arranged on a second end of the magnetic sleeve 23 lying in the axial direction X-X.
- the cover 28 has a slot 29.
- the slot 29 has a width in the circumferential direction, which corresponds to a width of the recess 3 in the magnet sleeve 23. This allows a trouble-free recording of the housing portion 9 of the electric
- Connection elements 8 can be achieved.
- the bottom region 27 is connected to the magnet sleeve 23 by means of a first weld 11.
- the first weld 11 is provided completely circumferentially along the circumference.
- the lid 28 is connected to the magnet sleeve 23 with a second weld 12.
- the second weld 12 is also completely formed in the circumferential direction between the lid 28 and the magnet sleeve 23.
- the closing element 14 is connected to the armature 21 (see Figure 2), wherein a return element 15 always returns the closing element 14 to the idle state in which the magnetic actuator 2 is not actuated.
- Magnetic sleeve 23 can be provided, which consists of a rectangular
- Strip material can be rolled.
- a positive connection comprising the projecting portion 4 and a geometrically correspondingly formed recess 5 is provided.
- the coil of the magnetic actuator 2 may further comprise a separate extrusion coating and be inserted into the rolled magnetic sleeve 23 and then an additional encapsulation in the inner region between the magnet sleeve 23 and the coil are provided prior to mounting the lid 28 in order to achieve improved tightness.
- the lid 28 is then fixed to the magnet sleeve 23.
- Figure 4 shows an alternative embodiment of a positive connection of an injector according to a second embodiment of the invention.
- a constriction 6 is provided at the two abutting edges 24, 25.
- the projecting portion 4 has the shape of a puzzle piece. This allows a particularly secure positive connection between the two free
- Ends of the rolled magnetic sleeve 23 can be achieved in the circumferential direction.
- first abutment edge 24 and the second abutment edge 25 which in this embodiment comprises a first spot weld 16 and a second spot weld 17.
- the two welding points are provided at the abutting edges 24, 25 respectively at the ends lying in the axial direction X-X.
- an injector can be provided, which has a particularly inexpensive magnetic actuator.
- the injector is particularly preferably used for injecting fuel into an internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018559726A JP2019515188A (ja) | 2016-05-13 | 2017-03-24 | 改良された磁気アクチュエータを備えるインジェクタ |
EP17713297.4A EP3455487B1 (de) | 2016-05-13 | 2017-03-24 | Injektor mit verbessertem magnetaktor |
KR1020187032550A KR20190008215A (ko) | 2016-05-13 | 2017-03-24 | 개선된 자기 액추에이터를 구비한 분사기 |
CN201780029275.XA CN109154270B (zh) | 2016-05-13 | 2017-03-24 | 具有改进的电磁促动器的喷射器 |
US16/093,234 US11339756B2 (en) | 2016-05-13 | 2017-03-24 | Injector having an improved solenoid actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016208288.4A DE102016208288A1 (de) | 2016-05-13 | 2016-05-13 | Injektor mit verbessertem Magnetaktor |
DE102016208288.4 | 2016-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017194242A1 true WO2017194242A1 (de) | 2017-11-16 |
Family
ID=58410351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/057073 WO2017194242A1 (de) | 2016-05-13 | 2017-03-24 | Injektor mit verbessertem magnetaktor |
Country Status (7)
Country | Link |
---|---|
US (1) | US11339756B2 (de) |
EP (1) | EP3455487B1 (de) |
JP (1) | JP2019515188A (de) |
KR (1) | KR20190008215A (de) |
CN (1) | CN109154270B (de) |
DE (1) | DE102016208288A1 (de) |
WO (1) | WO2017194242A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018200084B4 (de) * | 2018-01-04 | 2021-09-16 | Vitesco Technologies GmbH | Verfahren zur Herstellung einer elektromagnetischen Ventilanordnung sowie elektromagnetische Ventilanordnung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1059647A1 (de) * | 1999-06-08 | 2000-12-13 | Smc Corporation | Elektromagnetischer Aktuator |
EP1062421A1 (de) * | 1999-01-08 | 2000-12-27 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
WO2005061150A1 (de) * | 2003-12-20 | 2005-07-07 | Robert Bosch Gmbh | Verfahren zur herstellung eines hülsenförmigen gehäuses aus mehreren flachen blechen |
US20100281691A1 (en) * | 2005-08-19 | 2010-11-11 | Max Seitter | Method for manufacturing a solid housing |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54123304U (de) | 1978-02-15 | 1979-08-29 | ||
JPS601262Y2 (ja) * | 1979-09-06 | 1985-01-14 | 松下電器産業株式会社 | 燃料噴射装置 |
JPH04112640A (ja) | 1990-08-31 | 1992-04-14 | Jidosha Denki Kogyo Co Ltd | 小型モータ |
JPH04358763A (ja) | 1991-06-05 | 1992-12-11 | Nippondenso Co Ltd | 電磁式燃料噴射弁 |
US5544816A (en) | 1994-08-18 | 1996-08-13 | Siemens Automotive L.P. | Housing for coil of solenoid-operated fuel injector |
US5577663A (en) | 1995-05-19 | 1996-11-26 | Siemens Automotive Corporation | Bottom feed injector with top calibration feed |
DE19744739A1 (de) | 1997-10-10 | 1999-04-15 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE19860631A1 (de) | 1998-12-29 | 2000-07-06 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil und Verfahren zur Herstellung eines Magnetmantels für ein Ventil |
JP3897096B2 (ja) | 2002-03-15 | 2007-03-22 | 株式会社デンソー | 高圧サプライポンプ |
JP4069693B2 (ja) * | 2002-06-25 | 2008-04-02 | 松下電工株式会社 | モータのステータケースの製造方法 |
JP2007016774A (ja) * | 2005-06-07 | 2007-01-25 | Denso Corp | 燃料噴射弁およびその製造方法 |
CN100494665C (zh) | 2005-06-07 | 2009-06-03 | 株式会社电装 | 喷油阀及其制造方法 |
JP4897728B2 (ja) | 2008-03-18 | 2012-03-14 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
JP5389560B2 (ja) * | 2009-07-23 | 2014-01-15 | 株式会社ケーヒン | 電磁式燃料噴射弁 |
JP5925504B2 (ja) * | 2012-02-03 | 2016-05-25 | 日立オートモティブシステムズ株式会社 | 電磁弁 |
-
2016
- 2016-05-13 DE DE102016208288.4A patent/DE102016208288A1/de not_active Withdrawn
-
2017
- 2017-03-24 CN CN201780029275.XA patent/CN109154270B/zh active Active
- 2017-03-24 KR KR1020187032550A patent/KR20190008215A/ko not_active Application Discontinuation
- 2017-03-24 EP EP17713297.4A patent/EP3455487B1/de active Active
- 2017-03-24 US US16/093,234 patent/US11339756B2/en active Active
- 2017-03-24 JP JP2018559726A patent/JP2019515188A/ja active Pending
- 2017-03-24 WO PCT/EP2017/057073 patent/WO2017194242A1/de unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1062421A1 (de) * | 1999-01-08 | 2000-12-27 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP1062421B1 (de) | 1999-01-08 | 2008-03-05 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
EP1059647A1 (de) * | 1999-06-08 | 2000-12-13 | Smc Corporation | Elektromagnetischer Aktuator |
WO2005061150A1 (de) * | 2003-12-20 | 2005-07-07 | Robert Bosch Gmbh | Verfahren zur herstellung eines hülsenförmigen gehäuses aus mehreren flachen blechen |
US20100281691A1 (en) * | 2005-08-19 | 2010-11-11 | Max Seitter | Method for manufacturing a solid housing |
Also Published As
Publication number | Publication date |
---|---|
US11339756B2 (en) | 2022-05-24 |
EP3455487A1 (de) | 2019-03-20 |
CN109154270A (zh) | 2019-01-04 |
JP2019515188A (ja) | 2019-06-06 |
KR20190008215A (ko) | 2019-01-23 |
EP3455487B1 (de) | 2020-10-28 |
CN109154270B (zh) | 2021-08-10 |
US20210215126A1 (en) | 2021-07-15 |
DE102016208288A1 (de) | 2017-11-16 |
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