EP2058909B1 - Agencement de résonance - Google Patents

Agencement de résonance Download PDF

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Publication number
EP2058909B1
EP2058909B1 EP07021710A EP07021710A EP2058909B1 EP 2058909 B1 EP2058909 B1 EP 2058909B1 EP 07021710 A EP07021710 A EP 07021710A EP 07021710 A EP07021710 A EP 07021710A EP 2058909 B1 EP2058909 B1 EP 2058909B1
Authority
EP
European Patent Office
Prior art keywords
section
inductance
housing
capacitance
resonator assembly
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.)
Revoked
Application number
EP07021710A
Other languages
German (de)
English (en)
Other versions
EP2058909A1 (fr
Inventor
Volker Heise
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.)
BorgWarner Luxembourg Automotive Systems SA
Original Assignee
Delphi Technologies Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39166543&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2058909(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP07021710A priority Critical patent/EP2058909B1/fr
Priority to PL07021710T priority patent/PL2058909T3/pl
Priority to AT07021710T priority patent/ATE544209T1/de
Priority to US12/265,966 priority patent/US7963262B2/en
Priority to JP2008285159A priority patent/JP2009115093A/ja
Publication of EP2058909A1 publication Critical patent/EP2058909A1/fr
Application granted granted Critical
Publication of EP2058909B1 publication Critical patent/EP2058909B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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 invention relates to a resonator arrangement for generating ignition energy for combustion of gas mixtures, which comprises in known manner as a functional element a generator in a generator section, wherein in a resonant circuit encompassed by a suitable excitation voltage increase is sought, a function of the generator section downstream and with this electromagnetically coupled a resonator section with a further resonant circuit, which comprises at least one inductor and an ignition section.
  • a voltage increase is set during operation, which can reach 100 to 200 times the voltage coupled by the generator in the resonator with continuous energy supply from the generator, while in the upstream section, ie in the generator there achievable voltage increase usually reaches 2-3 times the applied operating voltage.
  • resonance When resonance is increased, it comes at outputs of the resonator, in particular by suitable geometric design of housing or housing elements, to a charge flashover, that is, a plasma formation which is utilized in an internal combustion engine in a manner known per se for igniting an air-fuel mixture.
  • the resonator arrangement acts as an energy store, wherein previously supplied energy is at least temporarily stored in a magnetic field of the resonator and is cyclically converted into electrostatic energy of the resonator arrangement associated capacity.
  • the resonator arrangement comprises a generator and a resonator connected downstream thereof, wherein both the generator and the resonator each comprise a resonant circuit, that is to say a capacitance coupled to an inductance.
  • a disadvantage of the resonator arrangements known in the prior art is, above all, that electromagnetic characteristics are not known in a manner required for optimum generation of plasma in the region of the spark gap.
  • there is no spatial limitation of the magnetic field of the resonator arrangement there so that this is also influenced by material located in the surroundings.
  • the resonator arrangement described in DE '246 there is a Disadvantage also in that is held by the connection of the generator, a point between inductance and capacity of the generator at ground potential, so that in unfavorable manner, the desired resonance frequency is influenced by external magnetic materials, because the magnetic field is not limited in space.
  • a resonator arrangement of the aforementioned type ie a resonator arrangement with generator, inductance and capacitance
  • these elements follow one another sequentially in a common housing along a longitudinal axis of the resonator arrangement so that there is a generator section, an inductance section, a capacitance section and an ignition section result.
  • the housing encloses all the aforementioned sections and has an opening in the region of the ignition section, so that forming plasma can come into contact with the air-fuel mixture.
  • the housing is made of an electrically conductive material or has at least one conductive surface.
  • the electrical series connection of the inductance section and the capacitance section electrically represents an oscillatable dipole, to which the housing acts as a return conductor.
  • An advantage of the invention consists, on the one hand, in the design which can be achieved by the section-like sequence of generator section, inductance section, capacitance section and ignition section, namely a substantially elongated, cylindrical design which allows easy introduction into the engine block of an internal combustion engine, the resulting total longitudinal extension of the Resonator arrangement is also beneficial that the opening in the region of the ignition is in the assembled state of the resonator in a designated section of the combustion chamber of the engine.
  • the fact that all the aforementioned sections are arranged in a common housing results in a shielding of the electromagnetic fields which occur during operation, so that an influencing of surrounding functional units and units is prevented.
  • the functional units of the resonator arrangement are themselves protected against possible influences from outside.
  • the housing is made of a conductive material or has at least one conductive surface.
  • the need for a separate return conductor is eliminated, since the housing acts as a return conductor to the oscillatable dipole, which is formed by the electrical series connection of inductance and capacitance section.
  • the capacitance portion is preferably designed as a metal cylinder forming a portion of the housing, the inner surface of which acts as an electrode and its outer surface as part of the return conductor, so that this portion of the housing performs both the mechanical and electromagnetic protection function, the function of the resonant circuit's capacitance Resonator and finally the function as a return conductor for the resonator as a whole met.
  • a free end of such a metal cylinder then acts as a firing section, so that In the case of resonance plasma forms within this free end, in particular directly in the edge region of the free end.
  • an inductance encompassed by the inductance section is oriented with a plurality of coil windings such that a magnetic field forming inside the inductance during operation of the resonator arrangement is coaxial with the longitudinal axis of the resonator arrangement.
  • the coil turns on an (imaginary) cylinder jacket are all arranged in a same plane.
  • the inductance thus contributes essentially to its longitudinal extent with respect to the construction of the resonator arrangement, wherein a diameter, ie width and depth of a surrounding envelope contour, remain small in comparison with the total longitudinal extent, so that the resonator arrangement as a whole assumes a tubular contour, which facilitate their insertion into the engine block, which are in the mounted state within the engine block sections are additionally protected by this.
  • the generator section includes an electronic circuit effective to energize the inductance and capacitance section, with terminals for their external supply routed through the housing.
  • the electronics are thus protected electromagnetically and mechanically by the housing, so that the function of the electronics in the excitation of the resonant circuits comprised of the resonator circuit of these otherwise disturbing influencing external magnetic fields remains unaffected. If the connections for the external supply of the electronics are led through the housing, an opening of the housing, which is necessary for the external supply of the electronics, is kept to a minimum.
  • the functional sections encompassed by the resonator arrangement can be detachable, in particular via a housing formed in the housing Screw or plug connection to be interconnected.
  • individual or all functional sections are connected to one another by a one-piece housing or, if two functional sections are combined in a one-piece housing, a corresponding housing section.
  • the first alternative with releasably interconnected functional sections has the advantage of a possible manufacturing simplification, wherein in case of failure also individual functional sections can be quickly replaced.
  • the second alternative with a one-piece housing or at least two functional sections comprehensive one-piece housing portion has the advantage that contact points are avoided, so that overall the electromagnetic properties of the overall arrangement can be better determined theoretically, so that theoretically determined values for whole Baur Herbertn such resonator arrangements are applicable, without the need for individual adjustments to specifically installed functional units or resonator arrangements or to reduce them to at least an unavoidable minimum.
  • a possible change in electrical or electromagnetic properties can be prevented during operation, which can arise, for example, when a screw or a plug connection undergoes a relaxation during operation, so that there is an additional ohmic resistance for the return conductor or the effective area the electrode of the capacitance section changes and as far as the resonant properties of the affected resonant circuit change, which may even with minimal changes can cause the resonator is no longer optimally excited, so that the desired voltage increase is absent or less than intended.
  • the housing of the resonator is designed for insertion into an engine block of an internal combustion engine.
  • the outer shape is appropriate tuned to this application, ie the resonator tapered, for example, either continuously or discontinuously to the ignition section.
  • a discontinuous taper in order to achieve easy insertability into the engine block, it is at least provided that the outer surface of the housing remains at least edge-free in the region of such discontinuous transitions, ie a transition from a larger diameter to a smaller diameter takes place through a corresponding chamfer.
  • the housing can on its outer surface guide elements, such as guide webs or the like, which are, for example, only at the ignition portion remote from the area, so that a forced adjustment of the resonator takes place such that connections of the electronics of the generator section are the best possible accessible.
  • guide elements such as guide webs or the like
  • means for fixing the resonator arrangement can be provided in the engine block, for example in the manner of a bayonet closure, wherein such a means is then simultaneously effective for forced adjustment and for fixing in the engine block.
  • FIG. 1 shows a schematically simplified and generally designated 10 resonator according to the invention.
  • This includes functional sections arranged in a sectioned manner in a common housing 12 along a longitudinal axis, namely a generator section 14, an inductance section 16, a capacitance section 18 and an ignition section 20.
  • the housing 12 encloses all the aforementioned functional sections and has an opening 22 in the region of the ignition section 20.
  • the housing 12 is made of a conductive material or has at least one conductive surface.
  • the generator section 14 comprises, in a manner known per se, an electronics 24 which is shown only schematically and which is used to excite the Inductance portion 16 and the capacitance portion 18 is effective and generates a voltage overshoot in operation.
  • the electronics 24 includes its own resonant circuit which is electromagnetically coupled to the inductance section 16, wherein the resonant circuit of the electronics 24 and the resonant circuit formed from the electrically active components of inductance section 16 and capacitance section 18 are coordinated such that one at resonance in the Generator oscillating circuit voltage increase is coupled into the subsequent resonant circuit and leads there at resonance to an intended voltage increase and ultimately to the generation of a plasma in the region of the ignition section 20.
  • the inductance section 16 comprises an inductance 26 having a plurality of coil turns 28 which are all arranged in the same plane on an (imaginary) cylinder jacket, wherein the inductance 26 is oriented in such a way that an inductor 26 is formed in operation of the resonator arrangement 10 magnetic field is coaxial with the longitudinal axis of the resonator assembly 10.
  • An electrical series connection of the inductance section 16, that is to say the inductance 26 and capacitance section 18 comprised thereof, constitutes an oscillatable dipole, the aforementioned "second" oscillatory circuit, to which the housing 12 acts as a return conductor.
  • the capacitance portion 18 is designed as a a portion of the housing 12 forming metal cylinder, the inner surface of which as an electrode provided for the capacitance portion 18 capacity and whose outer surface is effective as part of the return conductor.
  • a conductor is guided, which extends with its free end into the ignition section 22 and which forms the other electrode of the capacitance in the region of the metal cylinder.
  • FIG. 2 shows an embodiment of the resonator 10 in a perspective view.
  • the generator section 14 first the generator section 14, then the inductance section 16 and subsequently the capacitance section 18 are shown, which in an ignition section 20 and in an in FIG. 2 invisible opening 22 ends.
  • FIG. 2 shows that the resonator from the generator portion 14 to the ignition portion 20 tapers, so that the resonator assembly in a designated opening 22 of an internal combustion engine (both not shown) is insertable.
  • the resonator 10 may have on the outside of the housing 12 all functional portions 14-20 for adjusting the same in the installed state effective surfaces 30, Abwolfen or the like, which in an interaction with a corresponding mating contour in the bore in the engine torsional security of the resonator 10 and / or effect a forced orientation.
  • a screw connection 31 is shown through which connections for the external supply of the electronics 24 (cf. FIG. 1 ) can be performed.
  • FIG. 3 shows the resonator according to FIG. 1 or FIG. 2 in a partially sectioned view, in which it is visible in the region of the inductance section 16 that the coil windings 28 encompassed by the inductance 26 located there are all arranged in the same plane on an (imaginary) cylinder jacket, wherein in the in FIG. 3 illustrated embodiment, a hollow core 32 is provided which carries the coil turns 28.
  • An insulator 34 which has an outer diameter matched to an inner diameter of the housing 12 in the inductance section 16, adjoins the core 32 and the coil windings 28 surrounding it.
  • Such a positive matching of insulator 28 and inner diameter of the affected housing section 12 may be obtained by fixing the core 32 with the coil windings 28 attached thereto in the housing 12 with a hardening potting medium which acts as an insulator 34.
  • FIG. 3 Finally, in the upper right corner of the illustration, a part of the generator section 14 can be seen, while at the opposite end of the inductance section 16 a part of the capacitance section 18 can still be seen.
  • the housing 12 is only partially in one piece and the transition from a functional element to an adjacent functional element, a corresponding housing portion is connected to the adjacent housing portion.
  • the compound may be soluble or insoluble.
  • a non-releasable connection are welded or soldered into consideration.
  • As releasable connections come screw or plug connections, for example a plug connection according to the principle of action of a bayonet lock, into consideration.
  • a resonator arrangement 10 with a longitudinal axis and in a common housing 12 along the longitudinal axis is arranged in a section-like manner arranged functional sections 14-20, wherein the housing 12 encloses all the aforementioned functional sections 14-20 and in A portion of one of the functional portions, the ignition portion 20, an opening 22, wherein the housing 12 is made of a conductive material or at least has a conductive surface and wherein a series electrical connection of the inductance portion 16 and capacitance portion 18 electrically represents a swingable dipole, to which Housing 12 acts as a return conductor, so that the electromagnetically active elements and functional units encompassed by the resonator 10 are protected from external electromagnetic fields and resulting in the operation of the resonator 10 Electromagnetic fields adjacent to the resonator assembly 10 does not affect positioned aggregates or functional elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Claims (10)

  1. Agencement résonateur (10) présentant un axe longitudinal et un tronçon générateur (14), un tronçon inductif (16), un tronçon capacitif (18) et un tronçon d'allumage (20) agencés tronçon par tronçon le long de l'axe longitudinal dans un boîtier commun (12),
    dans lequel le boîtier (12) enferme la totalité des tronçons précités (14, 16, 18, 20) et présente une ouverture (22) dans la région du tronçon d'allumage (20),
    dans lequel le boîtier (12) est fabriqué en un matériau conducteur ou présente tout au moins une surface conductrice, et
    dans lequel un branchement électrique en série du tronçon inductif (16) et du tronçon capacitif (18) représente électriquement un dipôle capable d'osciller, pour lequel le boîtier (12) constitue un conducteur de retour.
  2. Agencement résonateur (10) selon la revendication 1, dans lequel le tronçon générateur (14), le tronçon inductif (16), le tronçon capacitif (18), et le tronçon d'allumage (20) sont agencés l'un après l'autre sans chevauchement le long de l'axe longitudinal.
  3. Agencement résonateur (10) selon la revendication 2, dans lequel le tronçon capacitif (18) est réalisé sous la forme d'un cylindre métallique constituant un tronçon du boîtier (12), dont la surface intérieure fait office de capacité et dont la surface extérieure fait partie du conducteur de retour.
  4. Agencement résonateur (10) selon la revendication 3, dans lequel une extrémité libre du cylindre métallique fait office de tronçon d'allumage (20).
  5. Agencement résonateur (10) selon l'une ou plusieurs des revendications précédentes, dans lequel le tronçon inductif (16) comprend une inductance (26) avec une pluralité de spires de bobinage (28) qui sont agencées sur une enveloppe cylindrique toutes dans un même plan, ladite inductance étant orientée de telle façon qu'un champ magnétique qui s'établit lors du fonctionnement de l'agencement résonateur (10) à l'intérieur de l'inductance (26) est coaxial à l'axe longitudinal de l'agencement résonateur (10).
  6. Agencement résonateur (10) selon l'une ou plusieurs des revendications précédentes, dans lequel le tronçon générateur (14) comprend une unité électronique (24) dont la fonction est d'exciter le tronçon inductif et le tronçon capacitif (16, 18), les bornes destinées à leur alimentation externe étant passées à travers le boîtier (12).
  7. Agencement résonateur (10) selon l'une ou plusieurs des revendications précédentes, dans lequel le tronçon générateur (14) et le tronçon inductif (16), et en particulier dans lequel le tronçon générateur (14), le tronçon inductif (16) et le tronçon capacitif (18) sont reliés les uns aux autres de manière détachable, en particulier via une liaison vissée ou enfichable réalisée dans le boîtier (12).
  8. Agencement résonateur (10) selon l'une des revendications 1 à 6, dans lequel le tronçon générateur (14) et le tronçon inductif (16), et en particulier dans lequel le tronçon générateur (14), le tronçon inductif (16) et le tronçon capacitif (18) sont reliés les uns aux autres par un tronçon de boîtier (12) d'un seul tenant.
  9. Agencement résonateur (10) selon la revendication 7 ou 8, dans lequel le boîtier (12) est réalisé pour l'introduction dans un bloc moteur d'un moteur à combustion interne, et comprend des moyens pour sa fixation dans le bloc moteur.
  10. Agencement résonateur (10) selon la revendication 9, dans lequel les moyens pour la fixation dans le bloc moteur sont des éléments constitutifs intégraux du boîtier (12).
EP07021710A 2007-11-08 2007-11-08 Agencement de résonance Revoked EP2058909B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07021710A EP2058909B1 (fr) 2007-11-08 2007-11-08 Agencement de résonance
PL07021710T PL2058909T3 (pl) 2007-11-08 2007-11-08 Układ rezonatora
AT07021710T ATE544209T1 (de) 2007-11-08 2007-11-08 Resonatoranordnung
US12/265,966 US7963262B2 (en) 2007-11-08 2008-11-06 Resonator assembly
JP2008285159A JP2009115093A (ja) 2007-11-08 2008-11-06 共振器アセンブリ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07021710A EP2058909B1 (fr) 2007-11-08 2007-11-08 Agencement de résonance

Publications (2)

Publication Number Publication Date
EP2058909A1 EP2058909A1 (fr) 2009-05-13
EP2058909B1 true EP2058909B1 (fr) 2012-02-01

Family

ID=39166543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021710A Revoked EP2058909B1 (fr) 2007-11-08 2007-11-08 Agencement de résonance

Country Status (5)

Country Link
US (1) US7963262B2 (fr)
EP (1) EP2058909B1 (fr)
JP (1) JP2009115093A (fr)
AT (1) ATE544209T1 (fr)
PL (1) PL2058909T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2890247B1 (fr) * 2005-08-25 2007-09-28 Renault Sas Bougie d'allumage plasma pour un moteur a combustion interne
US8887683B2 (en) * 2008-01-31 2014-11-18 Plasma Igniter LLC Compact electromagnetic plasma ignition device
US8783220B2 (en) 2008-01-31 2014-07-22 West Virginia University Quarter wave coaxial cavity igniter for combustion engines
JP5423417B2 (ja) * 2010-01-20 2014-02-19 株式会社デンソー 高周波プラズマ点火装置
JP6023966B2 (ja) * 2011-08-10 2016-11-09 イマジニアリング株式会社 内燃機関
DE102012111172B4 (de) * 2012-11-20 2016-01-28 Borgwarner Ludwigsburg Gmbh Korona-Zündeinrichtung
US9873315B2 (en) 2014-04-08 2018-01-23 West Virginia University Dual signal coaxial cavity resonator plasma generation
JP6677865B2 (ja) * 2014-08-12 2020-04-08 イマジニアリング株式会社 点火装置
CN104612835A (zh) * 2015-01-07 2015-05-13 大连理工大学 微波同轴谐振腔等离子体点火助燃装置
US20190186369A1 (en) 2017-12-20 2019-06-20 Plasma Igniter, LLC Jet Engine with Plasma-assisted Combustion

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020101315A1 (en) * 2001-01-31 2002-08-01 Colin Hamer Ignition coil with primary winding release
DE10239410B4 (de) * 2002-08-28 2004-12-09 Robert Bosch Gmbh Vorrichtung zum Zünden eines Luft-Kraftstoff-Gemischs in einem Verbrennungsmotor
JP4305294B2 (ja) * 2003-08-28 2009-07-29 株式会社デンソー 内燃機関用点火装置
JP2005236263A (ja) * 2004-01-19 2005-09-02 Denso Corp 点火コイル及びその製造方法
FR2878658A1 (fr) 2004-11-29 2006-06-02 Renault Sas Nouveau procede de montage d'un ensemble bougie et bobine utilisant une transmission du couple de serrage par le corps de la bobine
DE102005037420A1 (de) 2005-08-08 2007-02-22 Siemens Ag Verfahren zum Betrieb eines Zündsystems zur Selbstreinigung von Zündkerzen
DE102006037246A1 (de) 2005-08-10 2007-02-22 Siemens Ag Verfahren zum Betreiben einer Zündkerze eines Zündsystems sowie Zündsystem und geeignete Zündkerze
FR2890247B1 (fr) * 2005-08-25 2007-09-28 Renault Sas Bougie d'allumage plasma pour un moteur a combustion interne
FR2895170B1 (fr) * 2005-12-15 2008-03-07 Renault Sas Optimisation de la frequence d'excitation d'un resonateur

Also Published As

Publication number Publication date
US20090120394A1 (en) 2009-05-14
US7963262B2 (en) 2011-06-21
ATE544209T1 (de) 2012-02-15
PL2058909T3 (pl) 2012-09-28
JP2009115093A (ja) 2009-05-28
EP2058909A1 (fr) 2009-05-13

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