EP1662626B1 - Neues Zusammensetzungsverfahren einer Anordnung einer Zündkerze und einer Spule durch Benützung eines Einspannungsmoments mit Hilfe des Spulenkörpers - Google Patents

Neues Zusammensetzungsverfahren einer Anordnung einer Zündkerze und einer Spule durch Benützung eines Einspannungsmoments mit Hilfe des Spulenkörpers Download PDF

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Publication number
EP1662626B1
EP1662626B1 EP05300966A EP05300966A EP1662626B1 EP 1662626 B1 EP1662626 B1 EP 1662626B1 EP 05300966 A EP05300966 A EP 05300966A EP 05300966 A EP05300966 A EP 05300966A EP 1662626 B1 EP1662626 B1 EP 1662626B1
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EP
European Patent Office
Prior art keywords
spark plug
casing
shell
essentially
inductive
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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.)
Not-in-force
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EP05300966A
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English (en)
French (fr)
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EP1662626A1 (de
Inventor
Xavier Jaffrezic
André AGNERAY
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Renault SAS
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Renault SAS
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Publication of EP1662626A1 publication Critical patent/EP1662626A1/de
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Publication of EP1662626B1 publication Critical patent/EP1662626B1/de
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/08—Mounting, fixing or sealing of sparking plugs, e.g. in combustion chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/40—Sparking plugs structurally combined with other devices
    • H01T13/44—Sparking plugs structurally combined with other devices with transformers, e.g. for high-frequency ignition

Definitions

  • the tightening torque of the spark plug is generally applied to the base of said spark plug, said cap comprising, conventionally, a male thread intended to cooperate with a thread. complementary female made in the cylinder head, and an element for the controlled tightening of said threaded assembly.
  • a mounting method then requires the use of a specific tool that is slid around said coil and said spark plug, in said access well to said spark plug: such a configuration therefore imposes, in particular, that there is, around said coil and in said access shaft to said candle, an unused free space outside the assembly operations and disassembly of the candle.
  • the existence of such a space goes against the dimensional constraints previously mentioned.
  • conductive thin layer of a material having a high electrical conductivity will also denote a metal layer of non-magnetic material having a thickness at least equal to or greater than the skin thickness in the frequency domain under consideration. that is, between 1 Megahertz and 10 Megahertz, ensuring an electromagnetic shielding function.
  • the high electrical conductivity of the materials will be similar to that of copper or silver, reference materials in this field (the value of the electrical conductivity of copper is 5.9 x 10 7 Siemens per meter and that of silver is greater than that of copper).
  • a cap consisting of a substantially cylindrical tubular portion terminated by a substantially planar flange whose outer diameter is greater than the diameter of said access well and whose surface is substantially perpendicular to the axis of said tubular portion and said well; access, is then placed on the upper part of the candle.
  • the dimensions of said cap are adjusted so that, when said substantially flat flange bears against the upper face of said candle access well, the end of the tubular portion of said cap bears against a portion of said spark plug, thus ensuring a compression hold of said spark plug in its access well: the tightening of the assembly is achieved by screwing said substantially flat flange on said upper face of said combustion chamber.
  • the coil is further integrated in said cap, the electrical contact between said coil and said spark plug being made by means of a helical spring placed in compression during the positioning of said cap.
  • Such a device if it eliminates the need to provide a space specifically for the passage of a clamping tool in the access well to the candle, however requires the achievement of a large number of parts precision.
  • publication EP0969575 proposes a candle associated with a coil.
  • the candle in this publication is a classic spark plug model and does not have any capacitive parts, such as radiofrequency plasma candles.
  • a radiofrequency plasma spark plug generally comprises an upper part, essentially inductive, consisting mainly of the coil of said spark plug and a shielding jacket of said essentially inductive portion, and a substantially capacitive lower portion composed mainly of a structure coaxial, the whole behaving like an LC resonator.
  • a substantially capacitive lower portion composed mainly of a structure coaxial, the whole behaving like an LC resonator.
  • the dimensions of said elements of said resonator must be defined, as a function of the radiofrequency operating domain, so as to optimizing the performance of said resonator: in particular, the length of said substantially capacitive portion should be as small as possible, so that the value of the capacitance remains low; in addition, the diameter of said substantially inductive portion should be as high as possible, so that the value of the overvoltage coefficient of the resonator thus formed is optimal.
  • the document DE-C-19 723 784 discloses a spark plug according to the preamble of claim 1.
  • the object of the present invention is to propose an assembly device in which the connection between the coil and the other elements constituting the spark plug ensures both electrical continuity and mechanical coupling, while allowing the assembly to be put in place. thus constituted without having to slide a tool around said coil to come to bear on the base of said candle.
  • the invention applies to a radiofrequency plasma spark plug.
  • the invention achieves its goal by means of a spark plug according to claim 1.
  • said essentially capacitive portion of said spark plug comprises, in particular, a base surrounding a substantially cylindrical central electrode and acting as a high voltage electrode, and said essentially inductive part of said spark plug is made in one or several materials and has a configuration for transmitting a torque to said base of said candle.
  • said base has, on the outer face of its part closest to the cylinder head of said internal combustion engine equipped with said spark plug, a suitable shape for the introduction and tightening of said spark plug on said cylinder head; said spark plug further comprising, at its end opposite its nearest end of said yoke, a connection element integral with a connecting device, said connecting element having a suitable shape enabling, by virtue of said transmission of said substantially inductive portion to said base, a tightening torque, the use of a simple and compact tool for the introduction and tightening of said spark plug on said cylinder head of said engine.
  • a radiofrequency plasma plug 1 of substantially cylindrical general shape mainly comprises a substantially capacitive lower part C and an essentially inductive upper part I, said parts C and I being of shape. substantially elongated, connected in series and having a common longitudinal axis Z.
  • Said substantially capacitive portion C comprises, in particular, a base 2 intended to be connected to the ground and surrounding a central electrode 3, substantially cylindrical, axis Z, acting as a high voltage electrode.
  • An insulator 4 is placed between the base 2 and the central electrode 3, said insulator 4 being configured to guide the sparks between the electrodes 2 and 3.
  • said base 2 has, on the outer face of its lower part closest to the cylinder head of the internal combustion engine equipped with said spark plug 1, a shape suitable for placing, holding and tightening said spark plug 1 on said cylinder head (for example and without limitation, as shown in Figure 1: a thread).
  • Said essentially inductive part I of said spark plug 1 comprises, for its part, a winding 5 whose axis is advantageously substantially coincident with the axis Z of the central electrode 3 and the spark plug 1.
  • Said winding 5 is, moreover surrounded by an envelope 6, preferably made of a nonmagnetic conductive material, intended to reduce the electromagnetic emissions of said spark plug 1 and to act as a shield, the dimensions of said envelope 6 being calculated so as to minimize the risks of breakdown between said winding 5 and said envelope 6.
  • an insulator 7 is placed between said winding 5 and said envelope 6, and said winding 5 is made around a solid element 8 made of a non-magnetic insulating material.
  • a complementary insulator 9 is furthermore placed between said insulator 7 and said insulator 4 separating said base 2 and said central electrode 3, a part 10 electrically connected to said base 2 ensuring the connection between the holding of said insulators 4, 7, and 9.
  • a current measuring winding 11 is also generally made around said winding 5, and a connection device 13, integral with a connector 12 (not detailed in the figures), is placed at the upper end of said candle 1.
  • a end of said coil 5 is connected to said connector 12, the other end of said coil 5 being connected by appropriate means 14 (not detailed in the figures) to an inner end of said central electrode 3.
  • such a candle 1 behaves like an LC resonator, in which the capacitive part and the inductive part are placed in series, and in which the capacitive part C is composed by the base 2, the central electrode 3, the insulator 4 placed between said central electrode 3 and said base 2, and by the internal parasitic capacitances related to the geometry of said spark plug 1, the essentially inductive part I consisting mainly of the winding 5, the insulator 7 and the envelope 6.
  • the length of the connection between said substantially capacitive portion C and said substantially inductive portion I should be reduced as much as possible.
  • the overvoltage coefficient of the resonator LC constituted by said substantially inductive portion I and said substantially capacitive portion C placed in series is even better than the diameter of said substantially inductive portion I is high.
  • the electrical quality of said connection between said substantially capacitive C and inductive I portions (continuity electrical, in particular) must also be maximum in order to optimize the performance of said resonator.
  • the device according to the invention proposes to introduce a rigid connection mode between some of the elements of each of the essentially capacitive parts C and essentially inductive I, and, by the implementation of materials and forms allowing the transmission of a couple clamping said substantially inductive portion I to said substantially capacitive portion C to allow the connection between said portions C and I of said spark plug 1 to be optimally performed both mechanically and electrically.
  • said tightening torque is, more particularly, transmitted to said base 2 of said spark plug 1, and this transmission of said tightening torque can be achieved either by the perimeter of said substantially inductive portion I (first embodiment of the device according to the invention, shown in FIGS. 2A, 2B, 3, and 4), or by the central core 8 of said essentially inductive part I (second embodiment of the device according to the invention shown in Figures 5, 6A and 6B).
  • first embodiment of the device according to the invention shown in FIGS. 2A, 2B, 3, and 4
  • the central core 8 of said essentially inductive part I second embodiment of the device according to the invention shown in Figures 5, 6A and 6B.
  • FIGS. 2A and 2B are diagrammatic views in section, along the longitudinal axis Z of a radiofrequency plasma candle 1, variants of the first embodiment of the device according to the invention, in which the tightening torque for the embodiment the connection between said essentially capacitive portion C and said essentially inductive portion I of said spark plug 1 is transmitted by the perimeter of said substantially inductive portion I.
  • the main advantage of this type of transmission is that it reduces the mechanical stresses on the larger radius available, where the leverage effect is optimal, thus minimizing mechanical stress on the actual materials.
  • said transmission of said pair clamping said substantially inductive portion I to said substantially capacitive portion C then returns to transmitting a torque of said casing 6 to said cap 2.
  • FIG. 2A shows an embodiment of the invention in which said envelope 6 is metallic, thus also ensuring the aforementioned shielding role.
  • said envelope 6 can be made of different metallic materials and by various appropriate techniques; it may, in particular, by way of example and in a non-exhaustive manner, be carried out at the same time as the base 2 (by stamping or stamping), or be welded to said base 2 after separate production of the two parts (stamping of said base 2 and drawing / rolling of said envelope 6).
  • the thickness of said envelope 6 is small (as an indication, it is substantially less than or equal to 0.5 mm): in this case, said insulator 7 placed between said coil 5 and said envelope 6 is chosen from way that it contributes to the mechanical strength of the whole being in solid and incompressible form. In this case also, a connection by welding of said envelope 6 to said base 2 will be preferred.
  • the thickness of said envelope 6 is greater (typically it is substantially greater than or equal to 0.5 mm): in this case, the intrinsic mechanical strength of said envelope 6 is sufficient to mechanically ensure the transmission of a couple torsion to said base 2, and said insulator 7 can then be in the form of a pressurized gas or an insulating liquid with a low coefficient of expansion. In this case then, the realization of said envelope 6 and said base 2 in the same room will be preferred.
  • the inner face of said envelope 6 must be coated with a layer of a few tens of microns thick (typically 30 to 50 ⁇ m, for example) of a material with high electrical conductivity (for example non-restrictive way: silver or copper), in order to improve the radiofrequency conductivity of said envelope 6 and to limit losses by skin effect within it.
  • a material with high electrical conductivity for example non-restrictive way: silver or copper
  • the transmission of the tightening torque (torque here) of said substantially inductive portion I to said substantially capacitive portion C of said spark plug is obtained by the metal bond rigid made, during manufacture, between said casing 6 and said base 2, by one of the means described above (simultaneous manufacture of said casing and said base by stamping or stamping, or separate fabrications, then rigid assembly of said casing 6 and said base 2, for example by welding).
  • FIG. 2B shows an embodiment in which said envelope 6 is made of an insulating material of polymer type.
  • said envelope 6 must then have a relatively large thickness (substantially, and for example, of the order of a few millimeters) so as to allow the transmission of said pair Moreover, the material selected for producing said envelope 6 must, in this case, present a dielectric loss factor of the same order as that of the material of said insulator 7.
  • said insulator 7 can equally well consist of a pressurized gas or an insulating liquid with a low coefficient of expansion.
  • the outer face of said envelope 6 must, in this embodiment of the invention, be coated with a layer of a few tens of microns thickness (typically and by way of non-limiting example: 30 to 50 ⁇ m) of a material with high electrical conductivity (for example and without limitation: silver or copper): the application of this coating on the outer face, and not on the inner face, of said envelope 6 makes it possible to increase slightly the outside diameter of said essentially inductive part I, which improves the overvoltage coefficient of the resonator consisting of said parts C and I as previously described.
  • the transmission of the tightening torque between said essentially inductive part I and said essentially capacitive part C of said spark plug 1 is obtained by appropriate shaping of the interface between said base 2 and said envelope 6, two variants of which are shown in Figures 3 and 4.
  • FIG. 3 shows a mode of shaping said base 2 and said envelope 6 in which the part of said envelope 6 intended to come into contact with said base 2 has the shape of a male cavity 15, and a complementary female cavity 16 said male cavity 15 is made on the portion of said base 2 intended to come into contact with said envelope 6.
  • said male cavity 15 is made on the part of said base 2 intended to come into contact with said envelope 6, and said female cavity 16 complementary to said male cavity 15 is formed on the part of said envelope 6 intended to come into contact with said base 2.
  • said geometry of said male and female fingerprints 16 shown in FIGS. 3 and 4 is indicated by way of nonlimiting example, and that the shape of said fingerprints 15 and 16 is, in general, to be adjusted. in particular, depending on the materials used and the costs of production.
  • FIGS. 5, 6A and 6B are diagrammatic views in section along the longitudinal axis Z of a radiofrequency plasma candle 1 according to the invention, variants of the second embodiment of the device according to the invention, in which the tightening torque for the embodiment of the connection between said substantially capacitive portion C and said essentially inductive portion I of said spark plug 1 is transmitted by the central core of said substantially inductive portion I.
  • An important advantage of this mode of transmission is that it makes it possible to release the all of the outer space of said winding 5 of said substantially inductive portion I, and that it allows the use, for said insulator 7, of materials having significant coefficients of expansion with temperature.
  • said central element 8, around which said winding 5 is made is produced in the form of a mandrel having, in its part that is closest to said base 2, an enlarged portion 17 of complementary shape and dimension of the inner shape of the base 2, so as to be able to mechanically couple with said base 2.
  • the outer shape of said enlarged portion 17 may to be substantially polygonal, a cavity complementary to said substantially polygonal shape being formed in said base 2.
  • a connecting element (not shown in FIG.
  • this element may, for example and non-exhaustively, be a key inserted substantially parallel to the longitudinal axis Z of said spark plug 1 according to the invention, or a pin inserted substantially perpendicularly to said longitudinal axis Z of said spark plug 1.
  • a rounded shape will be preferred at a sharp angle at the level of the widening 17 of said central element 8, so as to limit the mechanical stresses and the risks of electromagnetic breakdown in this zone.
  • the shielding function previously mentioned, and provided by said envelope 6 can be obtained by various means, illustrated by FIGS. 6A and 6B.
  • FIG. 6A shows an embodiment in which said envelope 6 surrounding said insulator 7 placed around said winding 5 is a sheet of a few tens of microns thick (typically and not limited to 75 to 150 ⁇ m) made of a material having a high electrical conductivity, or covered, on its face in contact with said insulator 7, with a conductive thin layer of a material having a high electrical conductivity (for example and without limitation: silver or copper) , so as to preserve, as already described above, the electromagnetic quality of the assembly.
  • a sheet of a few tens of microns thick typically and not limited to 75 to 150 ⁇ m
  • a material having a high electrical conductivity for example and without limitation: silver or copper
  • said envelope 6 is preferably wound in a polygonal shape around said insulator 7: said insulator 7 can thus expand by converging towards a substantially cylindrical external shape without inducing mechanical stress additional on the perimeter of said envelope 6.
  • FIG. 6B shows an alternative embodiment, in which said envelope 6 is replaced by the deposition, on the outer surface of said insulator 7, of a conductive thin layer 18 (for example and without limitation, a layer of 30 to 50 ⁇ m thick) of a material having a high electrical conductivity (silver or copper, for example and without limitation).
  • a conductive thin layer 18 for example and without limitation, a layer of 30 to 50 ⁇ m thick
  • a material having a high electrical conductivity silver or copper, for example and without limitation
  • said thin conductive layer 18 may be deposited on a polymer film itself vacuum-plated on said insulator 7.
  • said thin conductive layer 18 will be protected from the outside, and, in particular, oxidation or corrosion phenomena that can degrade its electrical performance, by a conductive thin layer of a suitable barrier material (for example and without limitation: a layer of varnish or a polymer film).
  • the electrical continuity of the assembly of said spark plug 1 according to the invention is finalized by said connecting element 13 intended for the connection of said connector 12 to the power supply of said spark plug 1.
  • said element 13, bound in a rigid form, in particular, to said envelope 6 (for example and in a nonlimiting manner, thanks to a means of the type of those just described for the connection of said envelope 6 with said base 2), has a shape adapted to the use of a simple clamping tool for the introduction and tightening of said spark plug 1 in the cylinder head of the engine.
  • a spark plug according to the invention can be put in place and removed from its access well without the need to slide a specific tool around said candle: it is therefore not necessary to provide, in said access shaft to said candle, a space necessary for the passage of said specific tool and used only for the assembly and disassembly operations of said candle.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (13)

  1. Zündkerze (1) für einen Verbrennungsmotor eines Kraftfahrzeugs von allgemeiner im Wesentlichen zylindrischer Form, umfassend hauptsächlich einen im Wesentlichen kapazitiven Teil (C), der dem Zylinderkopf des Motors am nächsten ist, und umfassend ein Gehäuse (2), das eine zentrale Elektrode (3) umgibt, die im Wesentlichen zylindrisch ist und die Rolle einer Hochspannungselektrode spielt, und einen im Wesentlichen induktiven Teil (I), der am weitesten vom Zylinderkopf des Motors entfernt ist, wobei die im Wesentlichen kapazitiven (C) und im Wesentlichen induktiven Teile (I) in Serie angeschlossen sind, um einen Resonator LC zu bilden, umfassend eine gemeinsame Längsachse, die im Wesentlichen mit der Längsachse (Z) der Zündkerze (1) zusammenfällt, dadurch gekennzeichnet, dass:
    - der im Wesentlichen induktive Teil (I) von einer Hülle (6) umgeben ist, deren Abmessungen und Materialien insbesondere für die Verwirklichung einer elektromagnetischen Abschirmung des im Wesentlichen induktiven Teils (I) geeignet sind,
    - der im Wesentlichen kapazitive Teil (C) und der im Wesentlichen induktive Teil (I) der Zündkerze (1) miteinander mechanisch und elektrisch durch eine einzige starre Vorrichtung verbunden sind, die es ermöglicht, ein Einspannungsmoment des im Wesentlichen induktiven Teils (I) auf den im Wesentlichen kapazitiven Teil (C) zu übertragen.
  2. Zündkerze (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Übertragung des Einspannungsmoments durch den Umfang des im Wesentlichen induktiven Teils (I) der Zündkerze (1) erfolgt.
  3. Zündkerze (1) nach Anspruch 2, bei der die Hülle (6) metallisch ist, dadurch gekennzeichnet, dass die Hülle (6) und das Gehäuse (2) ein einziges Stück bilden.
  4. Zündkerze (1) nach Anspruch 2, bei der die Hülle (6) eine dünne metallische Folie ist, dadurch gekennzeichnet, dass die Hülle (6) auf das Gehäuse (2) geschweißt ist.
  5. Zündkerze (1) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Innenseite der Hülle (6) mit einer dünnen leitenden Schicht eines Materials mit starker elektrischer Leitfähigkeit überzogen ist.
  6. Zündkerze (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Hülle (6) eine Manschette aus einem Polymermaterial ist, und dass die Außenseite der Hülle (6) mit einer dünnen leitenden Schicht eines Materials mit starker elektrischer Leitfähigkeit überzogen ist.
  7. Zündkerze (1) nach Anspruch 6, dadurch gekennzeichnet, dass der Teil des Gehäuses (2), der dazu bestimmt ist, mit der Hülle (6) in Kontakt zu sein, eine Vertiefung (16) komplementär zur Vertiefung (15), die auf dem Querschnitt der Hülle (6) vorgesehen ist, umfasst und dass sich die dünne leitende Schicht bis zu der auf dem Querschnitt der Hülle (6) vorgesehenen Vertiefung erstreckt.
  8. Zündkerze (1) nach Anspruch 1, bei der der induktive Teil (I) insbesondere eine Wicklung (5) umfasst, die um ein zentrales Element (8) ausgeführt und von einer Isoliermanschette (7) umgeben ist, wobei die Isoliermanschette (7) selbst von der Hülle (6) umgeben ist, dadurch gekennzeichnet, dass die Übertragung des Einspannungsmoments durch das zentrale Element (8) erfolgt.
  9. Zündkerze (1) nach Anspruch 8, dadurch gekennzeichnet, dass das zentrale Element (8) an seinem am nächsten zum Gehäuse (2) befindlichen Ende einen erweiterten Teil (17) von komplementärer Form zur Form der Innenseite des Gehäuses umfasst, um eine starre mechanische Verbindung mit dem Gehäuse (2) zu gewährleisten.
  10. Zündkerze (1) nach Anspruch 8, dadurch gekennzeichnet, dass der erweiterte Teil (17) des zentralen Elements (8) und das Gehäuse (2) eine gemeinsame Lagerung umfassen, die dazu bestimmt ist, ein Element aufzunehmen, das die Verbindung zwischen dem erweiterten Teil (17) und dem Gehäuse (2) gewährleistet.
  11. Zündkerze (1) nach einem der Ansprüche 8 bis 10, bei der die Hülle (6) eine Folie von einigen Zehntel Mikrometer Dicke eines leitenden Materials ist, dadurch gekennzeichnet, dass die Hülle (6) in polygonaler Form um die Isoliermanschette (7) gewickelt ist.
  12. Zündkerze (1) nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass die Hülle (6) auf ihrer Innenseite mit einer dünnen leitenden Schicht eines Materials, das eine starke elektrische Leitfähigkeit aufweist, überzogen ist.
  13. Zündkerze (1) nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass die Außenseite der Isoliermanschette (7) mit einer dünnen leitenden Schicht (18) eines Materials, das eine starke elektrische Leitfähigkeit aufweist, überzogen ist.
EP05300966A 2004-11-29 2005-11-25 Neues Zusammensetzungsverfahren einer Anordnung einer Zündkerze und einer Spule durch Benützung eines Einspannungsmoments mit Hilfe des Spulenkörpers Not-in-force EP1662626B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0452790A FR2878658A1 (fr) 2004-11-29 2004-11-29 Nouveau procede de montage d'un ensemble bougie et bobine utilisant une transmission du couple de serrage par le corps de la bobine

Publications (2)

Publication Number Publication Date
EP1662626A1 EP1662626A1 (de) 2006-05-31
EP1662626B1 true EP1662626B1 (de) 2008-01-16

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EP05300966A Not-in-force EP1662626B1 (de) 2004-11-29 2005-11-25 Neues Zusammensetzungsverfahren einer Anordnung einer Zündkerze und einer Spule durch Benützung eines Einspannungsmoments mit Hilfe des Spulenkörpers

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EP (1) EP1662626B1 (de)
AT (1) ATE384351T1 (de)
DE (1) DE602005004362T2 (de)
ES (1) ES2299983T3 (de)
FR (1) FR2878658A1 (de)

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CN103726972A (zh) * 2012-10-12 2014-04-16 博格华纳贝鲁系统股份有限公司 具有气密hf插塞连接器的电晕点火装置

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FR2907269B1 (fr) * 2006-10-17 2009-01-30 Renault Sas Dispositif de generation de plasma radiofrequence.
EP2058909B1 (de) 2007-11-08 2012-02-01 Delphi Technologies, Inc. Resonatoranordnung
WO2010043543A1 (en) * 2008-10-13 2010-04-22 Delphi Technologies, Inc. Arrangement for spark plug centre electrode connection with ignition coil
EP2456027A1 (de) * 2010-11-23 2012-05-23 Delphi Technologies, Inc. Einkapselung eines Hochfrequenzresonators für das Zündsystem eines Verbrennungsmotors
FR2995460B1 (fr) * 2012-09-12 2014-08-29 Renault Sa "bougie d'allumage de type a etincelle radiofrequence a amorce de rupture integree"
DE102013100925A1 (de) 2013-01-30 2014-07-31 Borgwarner Beru Systems Gmbh Spule und Koronazündeinrichtung mit einer solchen Spule
DE102014102230B4 (de) 2013-04-22 2019-07-11 Borgwarner Ludwigsburg Gmbh Verfahren zum Herstellen einer Koronazündeinrichtung

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JP3849649B2 (ja) * 2002-04-01 2006-11-22 株式会社デンソー 内燃機関用点火装置およびその製造方法

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN103726972A (zh) * 2012-10-12 2014-04-16 博格华纳贝鲁系统股份有限公司 具有气密hf插塞连接器的电晕点火装置
CN103726972B (zh) * 2012-10-12 2017-06-30 博格华纳贝鲁系统股份有限公司 具有气密高频插塞连接器的电晕点火装置

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EP1662626A1 (de) 2006-05-31
DE602005004362T2 (de) 2009-01-15
DE602005004362D1 (de) 2008-03-06
ATE384351T1 (de) 2008-02-15
FR2878658A1 (fr) 2006-06-02
ES2299983T3 (es) 2008-06-01

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