EP1193391A1 - Système de bobine avec une structure pour empêcher les fuites de fluide - Google Patents

Système de bobine avec une structure pour empêcher les fuites de fluide Download PDF

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Publication number
EP1193391A1
EP1193391A1 EP01123048A EP01123048A EP1193391A1 EP 1193391 A1 EP1193391 A1 EP 1193391A1 EP 01123048 A EP01123048 A EP 01123048A EP 01123048 A EP01123048 A EP 01123048A EP 1193391 A1 EP1193391 A1 EP 1193391A1
Authority
EP
European Patent Office
Prior art keywords
coil system
resin coating
coil
coating member
bobbin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01123048A
Other languages
German (de)
English (en)
Other versions
EP1193391B1 (fr
Inventor
Takaharu c/o Denso Corporation Sako
Tsuyoshi c/o Denso Corporation Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of EP1193391A1 publication Critical patent/EP1193391A1/fr
Application granted granted Critical
Publication of EP1193391B1 publication Critical patent/EP1193391B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid 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
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for

Definitions

  • the present invention relates to a coil system.
  • An electromagnetic valve system or a fuel injection system includes a coil system which receives power from a power source via a supply portion and thereby drives a valve member or the like.
  • the coil system is connected with the supply portion via its terminal portion such as a connector.
  • seal members such as O-rings are usually included for preventing fluid such as water or fuel from leaking into the interior of the coil system.
  • seal members such as O-rings are usually included for preventing fluid such as water or fuel from leaking into the interior of the coil system.
  • a coil system 100 shown in Fig. 8 is proposed.
  • an O-ring 103 prevents fluid leaking from the end of a coil 101 into the coil system 100 along a terminal member 102
  • another O-ring 105 prevents fluid leaking into the coil system 100 along the external surface of a bush 104.
  • the conductive member such as the coil 101, the terminal member 102, or the terminal 107, the conductive member itself or a resin layer coating the conductive member would be corroded. As a result, a conductive failure would occur or the winding of the coil 101 would be short-circuited.
  • a coil system includes a bobbin made of resin, a coil, terminal members, terminal portion made of resin, and a resin coating member.
  • the coil is wrapped around the bobbin.
  • the terminal members are connected to the coil, and project from the bobbin.
  • the terminal portion includes conductive terminals therein.
  • the resin coating member covers the bobbin and the terminal members.
  • weld portions are formed on the resin coating member on the side of the terminal portion.
  • the weld portions are welded to the terminal portion during a molding process of the terminal portion.
  • seal members are disposed circumferentially on the external surface of the resin coating member.
  • a coil system 50 according to a first embodiment of the present invention is incorporated in a fuel injection system 1 as shown in Fig. 1.
  • the fuel injection system 1 injects high constant pressure fuel, which is supplied from a common rail via fuel piping, toward the combustion chamber of a diesel engine.
  • the fuel injection system 1 includes an injection nozzle 10, a valve needle 11, a valve body 12, a control piston 13, a pressure control chamber 14 and an electromagnetic valve portion 30.
  • Nozzle holes 10a are formed at the tip of the injection nozzle 10.
  • the nozzle holes 10a are opened and closed as the valve needle 11 reciprocates vertically in Fig. 1.
  • the injection nozzle 10 is connected to the valve body 12 via a bush 15 by a retaining nut 16.
  • the control piston 13 for driving the valve needle 11 is disposed in the valve body 12. Further, the pressure control chamber 14 is formed in the valve body 12. The high-pressure fuel is accumulated in the pressure control chamber 14 for driving the valve needle 11 to close the nozzle holes 10a.
  • the electromagnetic valve portion 30 is a two way type valve which intermittently passes the high-pressure fuel from the pressure control chamber 14 to a low-pressure passage 17.
  • the electromagnetic valve portion 30 includes a valve seat member 31, a movable member 32, and the coil system 50.
  • the valve seat member 31 is a plate-type member.
  • a fuel passage 311 communicating with the pressure control chamber 14 is formed through the valve seat member 31.
  • the fuel passage 311 has an opening at its end on the side of the coil system 50, and a valve seat 31a of the valve seat member 31 extends around the opening.
  • the movable member 32 includes a valve member 321 and an armature 322.
  • the valve member 321 includes a ball member 321a at its end. The opening of the fuel passage 311 is opened and closed as the ball member 321a is seated on and lifted up from the valve seat 31a.
  • the armature 322 is disposed on the valve member 321 on the opposite side of the ball member 321a.
  • the armature 322 is made of magnetic material, and driven by the coil system 50.
  • the armature 322 When power is not supplied to the coil system 50, the armature 322 is pushed down (downward in Fig. 1) by a spring 33. Therefore the valve member 321 integrated with the armature 322 is also pushed down, and the ball member 321a is seated on the valve seat 31a. Accordingly the opening of the fuel passage 311 is blocked, and thereby the fuel is prevented from flowing from the pressure control chamber 14 into the low-pressure passage 17.
  • the pressure of the fuel accumulated in the pressure control chamber 14 increases.
  • the force due to the pressure of the fuel urges the valve needle 11 to close the nozzle holes 10a via the control piston 13.
  • the nozzle holes 10a are blocked by the valve needle 11, and therefore the fuel injection is stopped.
  • the armature 322 When power is supplied to the coil system 50, the armature 322 is pulled up (upward in Fig. 1) due to the electromagnetic attraction of the coil system 50 and thereby the armature 322 and the valve member 321 are also pulled up. Accordingly, the ball member 321a is lifted up from the valve seat 31a, and thereby the opening of the fuel passage 311 is opened. Then the fuel flows from the pressure control chamber 14 into the low-pressure passage 17. Therefore the pressure of the fuel accumulated in the pressure control chamber 14 decreases. Thereby the force which urges the valve needle 11 via the control piston 13 to close the nozzle holes 10a decreases.
  • the coil system 50 includes a bobbin 51, a coil 52, a positive terminal member and a negative terminal member 53, a resin coating member 54, a stator 55, a housing 56, a connector 58 as a terminal portion, and small rings 59 and a large ring 60 as seal members.
  • the bobbin 51 is formed of resin, and the coil 52 surrounds the bobbin 51.
  • the terminal members 53 are formed of conductive material, and project from the bobbin 51 toward the connector 58.
  • the terminal members 53 are connected to the coil 52 so as to supply power to the coil 52.
  • the bobbin 51, the coil 52, and the terminal members 53 are coated with the resin coating member 54.
  • the bobbin 51 is made as a primary molded product, and then the coil 52 is wrapped around the bobbin 51. Further the terminal members 53 are connected to the bobbin 51.
  • the resultant structure including the bobbin 51, the coil 52 and the terminal members 53 is provided as an insert, and coated with resin so as to form the resin coating member 54.
  • the structure coated with the resin coating member 54 is provided as a secondary molded product 70.
  • the resin which forms the resin coating member 54 has a softening point close to that of the resin which forms the bobbin 51.
  • a receptacle portion 551 and two through holes 552 are formed in the stator 55.
  • the through holes 552 pass through the stator 55 along the axis of the coil system 50.
  • the secondary molded product 70 is inserted into the stator 55.
  • the bobbin 51 and the coil 52 rest in the receptacle portion 551, and the terminal members 53 penetrate the respective through holes 552.
  • a magnetic circuit is formed in the stator 55 and thereby the armature 322 of the movable member 32 is pulled up (upward in Fig. 1).
  • the length of the stator 55 along the axis of the coil system 50 and the size of the surface of the stator 55 corresponding to the armature 322 are determined based on the required magnetic attraction.
  • the housing 56 is disposed on the stator 55 on the opposite side of the armature 322.
  • Two holes 561 and two through holes 562 are formed in the housing 56.
  • the holes 561 are arranged so as to face the stator 55.
  • the through holes 562 pass through the housing 56 along the axis of the coil system 50, and communicate with the respective holes 561.
  • a groove 563 is circumferentially formed on the external surface of the housing 56.
  • the small rings 59 rest in the respective holes 561.
  • the large ring 60 rests in the groove 563.
  • the terminal members 53 are inserted into the housing 56 so as to penetrate the respective holes 561 and through holes 562.
  • Each of the small rings 59 is an O-ring which has a short diameter.
  • the small rings 59 rest in the respective holes 561 of the housing 56 as described above so as to wind around the resin coating member 54. Then the top surface and the external surface of each small ring 59 contact with the housing 56. The internal surface of each small ring 59 contacts with the resin coating member 54. The bottom surface of each small ring 59 contacts with the stator 55.
  • the large ring 60 is an O-ring which has a relatively long diameter. The large ring 60 rests in the groove 563 so as to contact with both of the housing 56 and the casing 57.
  • the casing 57 is provided for connecting the coil system 50 to the valve body 12 of the fuel injection system 1.
  • An internal thread portion is formed on the end of the casing 57 corresponding to the valve body 12. Further an external thread portion is formed on the corresponding end of the valve body 12.
  • the coil system 50 is fixed to the valve body 12 by engaging the thread portions each other.
  • the connector 58 is disposed on the housing 56 on the opposite side of the stator 55.
  • the connector 58 includes a connector cap 581 and two terminals 582 included in the connector cap 581.
  • the connector cap 581 is formed of resin which has a softening point close to that of the resin which forms the resin coating member 54.
  • One of the terminals 582 is a positive terminal which is connected to the positive terminal member 53, while the other of the terminals 582 is a negative terminal which is connected to the negative terminal member 53.
  • the terminals 582 are welded to the respective terminal members 53 after the stator 55, the housing 56 and the rings 59, 60 are fixed to the secondary molded product 70. Thereafter the resultant structure including the secondary molded product 70, the stator 55, the housing 56, the rings 59, 60 and the terminals 582 is provided as an insert, and the connector cap 581 is molded onto the structure.
  • weld portions 541 are formed at the ends of the resin coating member 54.
  • Each of the weld portions 541 has an acute angle in its cross section along the axis of the coil system 50.
  • the weld portions 541 melts at its interface with the connector cap 581. Thereby the weld portions 541 and the connector cap 581 are welded.
  • the boundary portion between the resin coating member 54 and the connector cap 581 is completely sealed up.
  • the resin coating member 54 isolates the coil 52 and the terminal members 53, which are conductive members, from the stator 55 and the housing 56 which are also conductive members. Accordingly, another insulating member such as a bush is not required in the coil system 50, and the space for disposing such an insulating member is also not required. Therefore the number of the components which constitute the coil system 50 is reduced, and the structure of the coil system 50 is simple. Moreover the length of the coil system 50 along its axis is also reduced, and thereby the coil system 50 can be miniaturized. Then the coil system 50 can be incorporated in various systems.
  • the resin coating member 54 covers up to the end portion of the bobbin 51 corresponding to the armature 322. This construction is possible because the coil system 50 can be miniaturized as described above. The fuel in the space 34 is prevented from reaching the winding of the coil 52 or the terminal members 53 by the resin coating member 54.
  • engine oil, water such as dew drops, or salt water from the external may leak from the boundary portion A between the housing 56 and the connector cap 581 into the coil system 50. Such fluid may reach the terminal members 53 or the terminals 582. However the fluid is blocked by the boundary portion between the resin coating member 54 and the connector cap 581, because the boundary portion is completely sealed up by welding the weld portions 541 and connector cap 58 as described above.
  • the fuel in the space 34 may also leak into the coil system 50 along the external surface of the resin coating member 54. Then the fuel may reach the boundary portion between the resin coating member 54 and the connector cap 581, and thereafter reach the terminal members 53 and the terminals 582. However, in the present coil system 50, the fuel is blocked by the small rings 59 or the boundary portion.
  • a coil system according to a second embodiment of the present invention includes a bobbin 81 different in shape from the bobbin 51 of the coil system 50 according to the first embodiment. Further, the coil system according to the second embodiment includes a resin coating member 84 which covers the bobbin 81 to a different degree from the resin coating member 54 of the coil system 50 according to the first embodiment.
  • the bobbin 81 includes a small portion 811 and two large portions 812.
  • the small portion 811 is surrounded with a coil 82, and the large portions 812 define both ends of the coil 82.
  • Weld projections 813 are formed at the edges of the respective large portions 812.
  • the bobbin 81 is made as a primary molded product, and then the coil 82 is wrapped around the bobbin 81.
  • terminal members 83 are connected to the bobbin 81.
  • the resultant structure including the bobbin 81, the coil 82 and the terminal members 83 is provided as an insert, and coated with resin so as to from the resin coating member 84.
  • the weld projections 813 and the resin coating member 84 are welded.
  • the structure coated with the resin coating member 84 is provided as a secondary molded product 80.
  • the other portions of the coil system according to the second embodiment are similar to the first embodiment.
  • Fluid such as fuel is prevented from leaking from the boundary portion between the bobbin 81 and the resin coating member 84 into the coil system 50, because the boundary portion is completely sealed up by welding the weld projections 813 and the resin coating member 84. Thereby the coil 82 is prevented from being corroded, and therefore prevented from being short-circuited.
  • the resin coating member 84 is not required to cover up to the end portion of the bobbin 81 corresponding to the armature 322. Therefore the coil system can be miniaturized.
  • a coil system according to a third embodiment of the present invention includes a resin coating member 54 which has weld portions 542 different in position and shape from the weld portions 541 of the coil system 50 according to the first embodiment.
  • the weld portions 542 are circumferentially formed on the external surface of the resin coating member 54, and positioned so as to contact with the connector cap 581.
  • Each of the weld portions 542 has a triangle cross section along the axis of the coil system.
  • Fluid leaking from the boundary portion A between the connector cap 581 and the housing 56 into the coil system is blocked by the boundary portion between the resin coating member 54 and the connector cap 581, because the boundary portion is completely sealed up by welding the weld portions 542 and the connector cap 581. Accordingly the fluid is prevented from reaching conductive members such as the terminal members 53 or the terminals 582. Therefore the terminal members 53 and the terminals 582 are prevented from being corroded.
  • a coil system according to a fourth embodiment of the present invention also includes a resin coating member 90 which has weld portions 91 different in position and shape from the weld portions 541 of the coil system 50 according to the first embodiment.
  • the resin coating member 90 has small portions 901 at its ends corresponding to a connector 58.
  • the small portions 901 have a diameter shorter than the other portions of the resin coating member 90. Therefore gaps are formed between the small portions 901 and the internal walls 562a of the through holes 562 of a housing 56.
  • the weld portions 91 each of which has a triangle cross section along the axis of the coil system, are formed on the respective small portions 901 so as to project radially toward the internal walls 562a of the through holes 562. Accordingly, the gaps 92 narrower than the gaps between the small portions 901 and the internal walls 562a are formed between the weld portions 91 and the internal walls 562a of the through holes 562.
  • the distance D between the small portions 901 and the internal walls 562a is set to 1-2mm, while the distance Ds between the weld portions 91 and the internal walls 562a is set to 0.5mm.
  • resin passes the weld portions 91 at a relatively high speed and thereby relatively large quantity of heat is applied to the weld portions 91, when the connector cap 581 is molded.
  • the welding efficiency that is, a ratio of the welded area to the surface area of the weld portions 91 is increased. Thereby the sealing performance is improved.
  • the other portions of the coil system according to the fourth embodiment are similar to the first embodiment.
  • the coil system according to the present invention is incorporated in the fuel injection system 1 of the diesel engine.
  • the coil system may be incorporated in the fuel injection system of a gasoline engine.
  • the coil system may be incorporated in other electrical components, for example, an MRE sensor.
  • a coil system (50) includes a bobbin (51, 81), a coil (52, 82) wrapped around the bobbin, terminal members (53, 83), a resin coating member (54, 84), a stator (55), a housing (56), and a connector (58).
  • the resin coating member covers the bobbin, the coil and the terminal members so as to seal up them. Further, the resin coating member insulates the coil and the terminal members from the stator and the housing.
  • O-rings (59) are disposed circumferentially on the external surface of the resin coating member so as to prevent fluid from leaking into the coil system.
  • weld portions (541, 542, 91) are formed on the resin coating member, and welded to a connector cap (581) of the connector. Thereby fluid leaking into the coil system from the boundary portion (A) of the resin coating member and the connector cap is blocked.

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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)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electromagnets (AREA)
EP01123048A 2000-09-28 2001-09-26 Système de bobine avec une structure pour empêcher les fuites de fluide Expired - Lifetime EP1193391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000295892 2000-09-28
JP2000295892A JP3669425B2 (ja) 2000-09-28 2000-09-28 コイル装置

Publications (2)

Publication Number Publication Date
EP1193391A1 true EP1193391A1 (fr) 2002-04-03
EP1193391B1 EP1193391B1 (fr) 2006-03-29

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ID=18778248

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Application Number Title Priority Date Filing Date
EP01123048A Expired - Lifetime EP1193391B1 (fr) 2000-09-28 2001-09-26 Système de bobine avec une structure pour empêcher les fuites de fluide

Country Status (3)

Country Link
EP (1) EP1193391B1 (fr)
JP (1) JP3669425B2 (fr)
DE (1) DE60118285T2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006100242A1 (fr) * 2005-03-24 2006-09-28 Siemens Vdo Automotive Ag Actionneur destine a actionner un injecteur de carburant
EP1775458A2 (fr) * 2003-11-14 2007-04-18 Magneti Marelli Powertrain S.p.A. Injecteur de carburant avec aiguille à actionnement hydraulique
EP1867867A1 (fr) * 2006-06-15 2007-12-19 C.R.F. Societa Consortile per Azioni Injecteur de carburant
WO2010000527A1 (fr) * 2008-07-04 2010-01-07 Robert Bosch Gmbh Vanne magnétique pour un injecteur de carburant et injecteur de carburant
FR3038008A1 (fr) * 2015-06-29 2016-12-30 Electricfil Automotive Actionneur electromagnetique de pilotage d'un injecteur comportant une chemise arriere et procede de fabrication
AT517926A1 (de) * 2015-11-20 2017-05-15 Egston System Electronics Eggenburg Gmbh Spulenträger für eine elektrische Spulenanordnung und Verfahren zur Herstellung einer elektrischen Spulenanordnung
CN112334647A (zh) * 2018-07-27 2021-02-05 日立汽车***株式会社 燃料泵

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10049709A1 (de) * 2000-05-25 2001-11-29 Mannesmann Rexroth Ag Magnetspulenanordnung
JP4698876B2 (ja) * 2001-04-27 2011-06-08 豊興工業株式会社 電磁石
CN101772878B (zh) * 2007-09-26 2012-08-29 三菱电机株式会社 电磁铁执行器
DE102011078423A1 (de) * 2011-06-30 2013-01-03 Robert Bosch Gmbh Komponente eines Brennstoffeinspritzsystems
JP2019220616A (ja) * 2018-06-21 2019-12-26 株式会社鷺宮製作所 電磁コイル

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DE2618163A1 (de) * 1976-04-26 1977-11-17 Hiss Eckart Spulenanordnung fuer naeherungsschalter
JPH0579424A (ja) * 1991-09-17 1993-03-30 Keihin Seiki Mfg Co Ltd 燃料噴射弁
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DE19756604A1 (de) * 1997-12-18 1999-07-01 Siemens Ag Elektrische Spule, insbesondere für ein Relais, und Verfahren zu deren Herstellung
US5967419A (en) * 1997-01-08 1999-10-19 Aisan Kogyo Kabushiki Kaisha Injector improved in noise reduction

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JPH0579424A (ja) * 1991-09-17 1993-03-30 Keihin Seiki Mfg Co Ltd 燃料噴射弁
JPH06299929A (ja) * 1993-04-19 1994-10-25 Hitachi Ltd 電磁式燃料噴射弁
US5967419A (en) * 1997-01-08 1999-10-19 Aisan Kogyo Kabushiki Kaisha Injector improved in noise reduction
DE19756604A1 (de) * 1997-12-18 1999-07-01 Siemens Ag Elektrische Spule, insbesondere für ein Relais, und Verfahren zu deren Herstellung

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1775458A2 (fr) * 2003-11-14 2007-04-18 Magneti Marelli Powertrain S.p.A. Injecteur de carburant avec aiguille à actionnement hydraulique
EP1775458A3 (fr) * 2003-11-14 2007-10-17 Magneti Marelli Powertrain S.p.A. Injecteur de carburant avec aiguille à actionnement hydraulique
US7784444B2 (en) 2005-03-24 2010-08-31 Continental Automotive Gmbh Actuating drive for actuating a fuel injection valve
WO2006100242A1 (fr) * 2005-03-24 2006-09-28 Siemens Vdo Automotive Ag Actionneur destine a actionner un injecteur de carburant
US7802584B2 (en) 2006-06-15 2010-09-28 C.R.F. Società Consortile Per Azioni Fuel injector for internal combustion engine and corresponding method of manufacture
EP1867867A1 (fr) * 2006-06-15 2007-12-19 C.R.F. Societa Consortile per Azioni Injecteur de carburant
WO2010000527A1 (fr) * 2008-07-04 2010-01-07 Robert Bosch Gmbh Vanne magnétique pour un injecteur de carburant et injecteur de carburant
FR3038008A1 (fr) * 2015-06-29 2016-12-30 Electricfil Automotive Actionneur electromagnetique de pilotage d'un injecteur comportant une chemise arriere et procede de fabrication
AT517926A1 (de) * 2015-11-20 2017-05-15 Egston System Electronics Eggenburg Gmbh Spulenträger für eine elektrische Spulenanordnung und Verfahren zur Herstellung einer elektrischen Spulenanordnung
AT517926B1 (de) * 2015-11-20 2017-09-15 Egston System Electronics Eggenburg Gmbh Spulenträger für eine elektrische Spulenanordnung und Verfahren zur Herstellung einer elektrischen Spulenanordnung
CN108352237A (zh) * 2015-11-20 2018-07-31 埃格斯顿***电子埃根堡有限公司 用于电线圈装置的线圈支架和用于制造电线圈装置的方法
US10490334B2 (en) 2015-11-20 2019-11-26 Egston System Electronics Eggenburg Gmbh Coil former for an electrical coil assembly and method for producing an electrical coil assembly
CN108352237B (zh) * 2015-11-20 2020-11-06 埃格斯顿***电子埃根堡有限公司 用于电线圈装置的线圈支架和用于制造电线圈装置的方法
CN112334647A (zh) * 2018-07-27 2021-02-05 日立汽车***株式会社 燃料泵

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DE60118285T2 (de) 2006-11-09
JP3669425B2 (ja) 2005-07-06
DE60118285D1 (de) 2006-05-18
EP1193391B1 (fr) 2006-03-29
JP2002110419A (ja) 2002-04-12

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