EP2058909A1 - Resonant assembly - Google Patents
Resonant assembly Download PDFInfo
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- EP2058909A1 EP2058909A1 EP07021710A EP07021710A EP2058909A1 EP 2058909 A1 EP2058909 A1 EP 2058909A1 EP 07021710 A EP07021710 A EP 07021710A EP 07021710 A EP07021710 A EP 07021710A EP 2058909 A1 EP2058909 A1 EP 2058909A1
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- section
- housing
- inductance
- resonator
- capacitance
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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
- H01T13/40—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 the housing or housing elements, to a charge overrun, 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. Upon excitation of the generator-side resonant circuit arises in this manner known per se, a voltage increase, the z. B.
- 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.
- DE'420 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 environment.
- 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.
- 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 elongate, 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 mounted 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 electrical series connection of the inductance section and capacitance section electrically represents an oscillatable dipole, to which the housing preferably acts as a return conductor, so that the need for a separate return conductor is eliminated.
- 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 design of the resonant 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 internal combustion engine, a rotation 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 Area of one of the functional portions, the ignition portion 20, an opening 22 and wherein the housing 12 is made of a conductive material or at least has a conductive surface, so that the electromagnetic elements comprising the resonator assembly 10 and functional units protected from external electromagnetic fields are and in the operation of the resonator 10 resulting electromagnetic fields adjacent to the resonator assembly 10 positioned aggregates or functional elements do not affect.
Abstract
Description
Die Erfindung betrifft eine Resonatoranordnung zur Erzeugung von Zündungsenergie zur Verbrennung von Gasgemischen, die in an sich bekannter Art und Weise als funktionales Element einen Generator in einem Generatorabschnitt umfasst, wobei in einem davon umfassten Schwingkreis durch geeignete Anregung eine Spannungserhöhung angestrebt wird, einen dem Generatorabschnitt funktional nachgeordnetem und mit diesem elektromagnetisch gekoppelt einen Resonatorabschnitt mit einem weiteren Schwingkreis, der dazu zumindest eine Induktivität umfasst und einen Zündabschnitt.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.
Im mit dem Generator gekoppelten Resonator soll sich im Betrieb eine Spannungsüberhöhung einstellen, die bei kontinuierlicher Energiezufuhr vom Generator das 100- bis 200-fache der vom Generator in den Resonator eingekoppelten Spannung erreichen kann, während in dem vorgeschalteten Abschnitt, also im Generator, die dort erreichbare Spannungserhöhung üblicherweise das 2-3-fache der anliegenden Betriebsspannung erreicht. Die Schwingkreise von Generator und Resonator, also die davon umfassten Induktivitäten und Kapazitäten, fungieren dabei als Energiespeicher, wobei zuvor zugeführte Energie zumindest zeitweise in einem magnetischen Feld der jeweiligen Induktivität gespeichert ist und zyklisch in elektrostatische Energie in einer der Induktivität zugeordneten oder mit der Induktivität bauteilspezifisch oder geometriebedingt assoziierten Kapazität umgewandelt wird. Bei Resonanzüberhöhung kommt es an Ausgängen des Resonators, insbesondere durch geeignete geometrische Gestaltung von Gehäuse oder Gehäuseelementen, zu einem Ladungs-überschlag, also einer Plasmabildung, die in einem Verbrennungsmotor in an sich bekannter Art zur Zündung eines Luftkraftstoffgemisches ausgenutzt wird.In the resonator coupled to the generator, 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. The resonant circuits of the generator and the resonator, ie the inductors and capacitances included therein, act as energy storage, wherein previously supplied energy is at least temporarily stored in a magnetic field of the respective inductance and cyclically in electrostatic energy in one of the inductance associated with the inductance or component specific or geometry-related capacity is converted. When resonance is increased, it comes at outputs of the resonator, in particular by suitable geometric design of the housing or housing elements, to a charge overrun, 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.
Derartige Resonatoranordnungen sind an sich bekannt und es wird beispielhaft auf die
Ein Nachteil der im Stand der Technik bekannten Resonatoranordnungen besteht vor allem darin, dass elektromagnetische Kenngrößen nicht in einer für eine optimale Erzeugung von Plasma im Bereich der Funkenstrecke erforderlichen Art und Weise bekannt sind. Z. B. ist bei der Lösung gemäß der vorgenannten DE'420 keine räumliche Begrenzung des magnetischen Feldes der dortigen Resonatoranordnung gegeben, so dass dieses auch durch in der Umgebung befindliches Material beeinflusst ist. Bei der in der DE '246 beschriebenen Resonatoranordnung besteht ein Nachteil auch darin, dass durch die Anschaltung des Generators ein Punkt zwischen Induktivität und Kapazität des Generators auf Massepotential gehalten wird, so dass in ungünstiger Art und Weise die erwünschte Resonanzfrequenz durch externe magnetische Materialien beeinflusst wird, weil das magnetische Feld nicht räumlich begrenzt ist. Darüber hinaus kann sich auch eine Beeinflussung, z. B. eine Erwärmung, von in räumlicher Nähe zu der Resonatoranordnung befindlichen Gegenständen ergeben. Schließlich scheinen bekannte Lösungen auch einen Schutz gegen die sich ergebende Hochspannung zu vernachlässigen oder es wird versucht, einen evtl. Schutz durch externe Mittel, z. B. eine Kappe, eine Hülse oder dergleichen, zu erreichen.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. For example, in the solution according to the abovementioned DE'420 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 environment. In 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. In addition, an influence, for. As a heating, resulting from in close proximity to the resonator arrangement objects. Finally, known solutions also appear to neglect protection against the resulting high voltage or it is attempted to provide protection, if any, by external means, e.g. As a cap, a sleeve or the like to achieve.
Eine Aufgabe der Erfindung besteht entsprechend darin, eine Resonatoranordnung der eingangs genannten Art anzugeben, bei der Nachteile wie oben skizziert vermieden oder zumindest hinsichtlich ihrer Auswirkungen reduziert werden.Accordingly, it is an object of the invention to specify a resonator arrangement of the type mentioned above in which disadvantages as outlined above are avoided or at least reduced with regard to their effects.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst. Dazu ist bei einer Resonatoranordnung der eingangs genannten Art, also einer Resonatoranordnung mit Generator, Induktivität und Kapazität vorgesehen, dass diese Elemente in einem gemeinsamen Gehäuse entlang einer Längsachse der Resonatoranordnung sektionsartig aufeinanderfolgen, so dass sich ein Generatorabschnitt, ein Induktivitätsabschnitt, ein Kapazitätsabschnitt und ein Zündabschnitt ergeben. Das Gehäuse umschließt dabei sämtliche vorgenannten Abschnitte und weist im Bereich des Zündabschnitts eine Öffnung auf, so dass sich bildendes Plasma in Kontakt mit dem Luftkraftstoffgemisch kommen kann. Das Gehäuse ist aus einem elektrisch leitfähigen Material gefertigt oder weist zumindest eine leitfähige Oberfläche auf.This object is achieved with the features of
Ein Vorteil der Erfindung besteht zum einen in der durch die sektionsartige Abfolge von Generatorabschnitt, Induktivitätsabschnitt, Kapazitätsabschnitt und Zündabschnitt erreichbaren Bauform, nämlich einer im Wesentlichen langgestreckten, zylindrischen Bauform, die ein leichtes Einführen in den Motorblock eines Verbrennungsmotors erlaubt, wobei die sich ergebende Gesamtlängserstreckung der Resonatoranordnung auch dazu dienlich ist, dass die Öffnung im Bereich des Zündabschnitts sich im montierten Zustand der Resonatoranordnung in einem dafür vorgesehenen Abschnitt des Brennraums des Verbrennungsmotors befindet. Dadurch, dass sämtliche vorgenannte Abschnitte in einem gemeinsamen Gehäuse angeordnet sind, ergibt sich eine Abschirmung der sich im Betrieb einstellenden elektromagnetischen Felder, so dass eine Beeinflussung umgebender Funktionseinheiten und Aggregate verhindert wird. Darüber hinaus sind aber auch die Funktionseinheiten der Resonatoranordnung selbst gegen eventuelle Einflüsse von außen geschützt. Dazu ist das Gehäuse aus einem leitfähigen Material gefertigt oder weist zumindest eine leitfähige Oberfläche auf.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 elongate, 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 mounted 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. In addition, however, the functional units of the resonator arrangement are themselves protected against possible influences from outside. For this purpose, the housing is made of a conductive material or has at least one conductive surface.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Dabei verwendete Rückbeziehungen weisen auf die weitere Ausbildung des Gegenstandes des Hauptanspruches durch die Merkmale des jeweiligen Unteranspruches hin; sie sind nicht als ein Verzicht auf die Erzielung eines selbständigen, gegenständlichen Schutzes für die Merkmalskombinationen der rückbezogenen Unteransprüche zu verstehen. Des Weiteren ist im Hinblick auf eine Auslegung der Ansprüche bei einer näheren Konkretisierung eines Merkmals in einem nachgeordneten Anspruch davon auszugehen, dass eine derartige Beschränkung in den jeweils vorangehenden Ansprüchen nicht vorhanden ist.Advantageous embodiments of the invention are the subject of the dependent claims. This used backlinks point to the further development of the subject matter of the main claim by the features of the respective subclaim; they should not be construed as a waiver of obtaining independent, objective protection for the feature combinations of the dependent claims. Furthermore, with a view to an interpretation of the claims in a closer specification of a feature in a subordinate claim, it is to be assumed that such a restriction does not exist in the respective preceding claims.
Die elektrische Serienschaltung von Induktivitätsabschnitt und Kapazitätsabschnitt stellt elektrisch einen schwingfähigen Dipol dar, zu dem das Gehäuse bevorzugt als Rückleiter fungiert, so dass die Notwendigkeit eines separaten Rückleiters entfällt.The electrical series connection of the inductance section and capacitance section electrically represents an oscillatable dipole, to which the housing preferably acts as a return conductor, so that the need for a separate return conductor is eliminated.
Eine gegenseitige Beeinflussung der elektrisch wirksamen Bauteile von Generatorabschnitt, Induktivitätsabschnitt und Kapazitätsabschnitt lässt sich vermeiden oder zumindest reduzieren, wenn diese Bereiche nacheinander überlappungsfrei entlang der Längsachse angeordnet sind. Dies erleichtert zum einen den mechanischen Aufbau der Resonatoranordnung, z.B. derart, dass jeder Abschnitt segmentweise mit dem oder jedem benachbarten Abschnitt, z.B. durch Verschrauben, Verrasten oder dergleichen, zu der Resonatoranordnung kombinierbar ist. Zum anderen werden unerwünschte gegenseitige Beeinflussungen, z.B. aufgrund von Wechselwirkungen der sich ergebenden elektromagnetischen Felder reduziert, so dass sich das Verhalten der Resonatoranordnung einer idealen Resonatoranordnung mit entsprechenden elektrischen Bauelementen annähert und diese durch eine mathematische Modellierung ausreichend genau erfasst werden kann, was deren optimale Ansteuerung zum Erreichen einerseits der Spannungserhöhung im Generator und andererseits der Spannungsüberhöhung im Resonator ermöglicht.Mutual influencing of the electrically active components of generator section, inductance section and capacitance section can be avoided or at least reduced if these sections are arranged successively without overlapping along the longitudinal axis. This facilitates, on the one hand, the mechanical structure of the resonator arrangement, e.g. such that each section is segmented with the or each adjacent section, e.g. by screwing, latching or the like, can be combined to the resonator. On the other hand, undesirable mutual influences, e.g. reduced due to interactions of the resulting electromagnetic fields, so that the behavior of the resonator arrangement of an ideal resonator arrangement approaches with corresponding electrical components and this can be detected by a mathematical modeling sufficiently accurate, what their optimal control to achieve the one part of the voltage increase in the generator and on the other hand the voltage overshoot in the resonator allows.
Der Kapazitätsabschnitt ist bevorzugt als ein einen Abschnitt des Gehäuses bildender Metallzylinder ausgeführt, dessen innere Oberfläche als Elektrode und dessen äußere Oberfläche als Teil des Rückleiters wirksam sind, so dass dieser Abschnitt des Gehäuses sowohl die mechanische und elektromagnetische Schutzfunktion, die Funktion als Kapazität des Schwingkreises des Resonators und schließlich auch die Funktion als Rückleiter für die Resonatoranordnung insgesamt erfüllt. Ein freies Ende eines derartigen Metallzylinders fungiert dann als Zündabschnitt, so dass sich im Resonanzfall Plasma innerhalb dieses freien Endes, insbesondere unmittelbar im Randbereich des freien Endes, bildet.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.
Bevorzugt ist eine von dem Induktivitätsabschnitt umfasste Induktivität mit einer Mehrzahl von Spulenwindungen derart orientiert, dass ein sich im Betrieb der Resonatoranordnung im Innern der Induktivität ausbildendes magnetisches Feld koaxial mit der Längsachse der Resonatoranordnung ist. Dazu sind die Spulenwindungen auf einem (gedachten) Zylindermantel allesamt in einer gleichen Ebene angeordnet. Die Induktivität trägt also im Bezug auf die Bauform der Resonantoranordnung im Wesentlichen zu deren Längserstreckung bei, wobei ein Durchmesser, also Breite und eine Tiefe einer umgebenden Hüllkontur, im Vergleich mit der Gesamtlängserstreckung gering bleiben, so dass die Resonatoranordnung insgesamt eine rohrförmige Kontur annimmt, was deren Einführen in den Motorblock erleichtert, wobei die sich im montierten Zustand innerhalb des Motorblocks befindenden Abschnitte durch diesen zusätzlich geschützt sind. Der Generatorabschnitt umfasst eine zum Anregen des Induktivitäts- und Kapazitätsabschnitts wirksame Elektronik, wobei Anschlüsse zu deren externer Versorgung durch das Gehäuse geführt sind. Auch die Elektronik ist damit durch das Gehäuse elektromagnetisch und mechanisch geschützt, so dass die Funktion der Elektronik bei der Anregung der von der Resonatoranordnung umfassten Schwingkreise von diese ansonsten störend beeinflussenden äußeren Magnetfeldern unbeeinflusst bleibt. Wenn die Anschlüsse zur externen Versorgung der Elektronik durch das Gehäuse geführt sind, bleibt eine zur externen Versorgung der Elektronik notwendige Öffnung des Gehäuses auf ein Minimum beschränkt.Preferably, 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. For this purpose, 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 design of the resonant 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.
Die von der Resonatoranordnung umfassten Funktionsabschnitte, also Generatorabschnitt, Induktivitätsabschnitt und/oder Kapazitätsabschnitt können lösbar, insbesondere über eine im Gehäuse ausgebildete Schraub- oder Steckverbindung, miteinander verbunden sein. Alternativ kann auch vorgesehen sein, dass einzelne oder sämtliche Funktionsabschnitte durch ein einstückiges Gehäuse oder, wenn zwei Funktionsabschnitte in einem einstückigen Gehäuse kombiniert sind, einen entsprechenden Gehäuseabschnitt miteinander verbunden sein. Die erste Alternative mit lösbar miteinander verbundenen Funktionsabschnitten hat den Vorteil einer eventuellen Fertigungsvereinfachung, wobei im Fehlerfall zudem einzelne Funktionsabschnitte schnell ausgetauscht werden können. Die zweite Alternative mit einem einstückigen Gehäuse oder einem zumindest zwei Funktionsabschnitte umfassenden einstückigen Gehäuseabschnitt hat den Vorteil, dass Kontaktstellen vermieden werden, so dass insgesamt die elektromagnetischen Eigenschaften der Gesamtanordnung besser theoretisch ermittelbar sind, so dass theoretisch ermittelte Werte für ganze Baurreihen derartiger Resonatoranordnungen ansetzbar sind, ohne dass Einzelanpassungen an konkret verbaute Funktionseinheiten oder Resonatoranordnungen notwendig sind oder sich solche zumindest auf ein unvermeidliches Minimum reduzieren. Zudem kann eine eventuelle Änderung elektrischer oder elektromagnetischer Eigenschaften im Betrieb verhindert werden, die sich z.B. dann ergeben kann, wenn eine Schraub-oder eine Steckverbindung im Betrieb eine Lockerung erfährt, so dass sich für den Rückleiter ein zusätzlicher ohmscher Widerstand ergibt oder sich die wirksame Fläche der Elektrode des Kapazitätsabschnitts ändert und insoweit sich die Resonanzeigenschaften des davon betroffenen Schwingkreises ändern, was selbst bei minimalen Änderungen dazu führen kann, dass der Resonator nicht mehr optimal angeregt wird, so dass die angestrebte Spannungsüberhöhung ausbleibt oder geringer ausfällt als vorgesehen.The functional sections encompassed by the resonator arrangement, that is to say the generator section, the inductance section and / or the capacitance section, can be detachable, in particular via a housing formed in the housing Screw or plug connection to be interconnected. Alternatively, it can also be provided that 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 Baurreihen 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. In addition, 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.
Das Gehäuse der Resonatoranordnung ist zum Einführen in einen Motorblock eines Verbrennungsmotors ausgeführt. Die äußere Form ist entsprechend auf diesen Einsatzfall abgestimmt, d.h. die Resonatoranordnung verjüngt sich z.B. entweder kontinuierlich oder diskontinuierlich bis hin zum Zündabschnitt. Bei einer diskontinuierlichen Verjüngung ist zum Erreichen einer leichten Einführbarkeit in den Motorblock zumindest vorgesehen, dass die Außenfläche des Gehäuses im Bereich solcher diskontinuierlicher Übergänge zumindest kantenfrei bleibt, d.h. ein Übergang von einem größeren Durchmesser auf einen kleineren Durchmesser erfolgt durch eine entsprechende Anschrägung. Das Gehäuse kann auf seiner Außenfläche Führungselemente, wie z.B. Führungsstege oder dergleichen, aufweisen, die sich z.B. nur an dessen dem Zündabschnitt abgewandten Bereich befinden, so dass eine Zwangsjustierung der Resonatoranordnung derart erfolgt, dass Anschlüsse der Elektronik des Generatorabschnitts bestmöglich zugänglich sind. Zusätzlich können Mittel zur Fixierung der Resonatoranordnung im Motorblock vorgesehen sein, z.B. nach Art eines Bajonettverschlusses, wobei ein derartiges Mittel dann gleichzeitig zur Zwangsjustierung und zur Fixierung im Motorblock wirksam ist.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. In the case of 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. In addition, 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.
Bevorzugt ist das oder sind die Mittel zur Fixierung im Motorblock integraler Bestandteil des Gehäuses, so dass die Notwendigkeit einer Vorhaltung separater Fixiermittel entfällt und damit nicht nur eine Teilanzahl reduziert ist, sondern auch eine Montierbarkeit optimiert ist.This is preferably the means for fixing in the engine block integral part of the housing, so that the need for provision of separate fixing omitted and thus not only a number of parts is reduced, but also a mountability is optimized.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. Einander entsprechende Gegenstände oder Elemente sind in allen Figuren mit den gleichen Bezugszeichen versehen.An embodiment of the invention will be explained in more detail with reference to the drawing. Corresponding objects or elements are provided in all figures with the same reference numerals.
Das oder jedes Ausführungsbeispiel ist nicht als Einschränkung der Erfindung zu verstehen. Vielmehr sind im Rahmen der vorliegenden Offenbarung zahlreiche Abänderungen und Modifikationen möglich, insbesondere solche Varianten, Elemente und Kombinationen, die zum Beispiel durch Kombination oder Abwandlung von einzelnen in Verbindung mit den im allgemeinen oder speziellen Beschreibungsteil beschriebenen sowie in den Ansprüchen und/oder der Zeichnung enthaltenen Merkmalen bzw. Elementen oder Verfahrensschritten für den Fachmann im Hinblick auf die Lösung der Aufgabe entnehmbar sind und durch kombinierbare Merkmale zu einem neuen Gegenstand oder zu neuen Verfahrensschritten bzw. Verfahrensschrittfolgen führen.The or each embodiment is not to be understood as limiting the invention. Rather, numerous modifications and modifications are possible in the context of the present disclosure, in particular those variants, elements and combinations, for example by Combination or modification of individual in conjunction with the general or specific description part described and contained in the claims and / or the drawing features or elements or method steps for the skilled in the art with a view to solving the problem and removable by combinable features to a new Subject or to new process steps or procedural steps lead.
- FIG 1FIG. 1
- eine Resonatoranordnung,a resonator arrangement,
- FIG2fig2
- eine Ausführungsform der Resonatoranordnung in perspektivischer Ansicht undan embodiment of the resonator in perspective view and
- FIG3fig3
- eine Resonantoranordnung in einer teilweise geschnittenen Darstellung.a Resonantoranordnung in a partially sectioned illustration.
Der Generatorabschnitt 14 umfasst in an sich bekannter Art und Weise eine nur schematisch dargestellte Elektronik 24, die zum Anregen des Induktivitätsabschnitts 16 und des Kapazitätsabschnitts 18 wirksam ist und darin im Betrieb eine Spannungsüberhöhung erzeugt. Dazu umfasst die Elektronik 24 einen eigenen Schwingkreis, der elektromagnetisch mit dem Induktivitätsabschnitt 16 gekoppelt ist, wobei der Schwingkreis der Elektronik 24 und der aus den elektrisch wirksamen Bestandteilen aus Induktivitätsabschnitt 16 und Kapazitätsabschnitt 18 gebildete Schwingkreis derart aufeinander abgestimmt sind, dass eine bei Resonanz sich im Generatorschwingkreis einstellende Spannungserhöhung in den nachfolgenden Schwingkreis eingekoppelt wird und dort bei Resonanz zu einer beabsichtigten Spannungsüberhöhung und letztlich zur Erzeugung eines Plasmas im Bereich des Zündabschnitts 20 führt.The
Der Induktivitätsabschnitt 16 umfasst eine Induktivität 26 mit einer Mehrzahl von Spulenwindungen 28, die auf einem (gedachten) Zylindermantel allesamt in gleicher Ebene angeordnet sind, wobei die Induktivität 26 derart orientiert ist, dass ein sich in Betrieb der Resonatoranordnung 10 im Innern der Induktivität 26 ausbildendes magnetisches Feld koaxial mit der Längsachse der Resonatoranordnung 10 ist. Eine elektrische Serienschaltung von Induktivitätsabschnitt 16, also der davon umfassten Induktivität 26 und Kapazitätsabschnitt 18 stellt einen schwingfähigen Dipol, den vorgenannten "zweiten" Schwingkreis, dar, zu dem das Gehäuse 12 als Rückleiter fungiert.The
In der schematisch vereinfachten Darstellung in
Die Darstellung in
Im Bereich des Generatorabschnitts ist eine Verschraubung 31 gezeigt, durch die Anschlüsse zur externen Versorgung der Elektronik 24 (vgl.
In
Zusammenfassend lässt sich die vorliegenden Erfindung damit kurz wie folgt darstellen: Es wird eine Resonatoranordnung 10 mit einer Längsachse und in einem gemeinsamen Gehäuse 12 entlang der Längsachse sektionsartig angeordneten Funktionsabschnitten 14-20 angegeben, wobei das Gehäuse 12 sämtliche vorgenannten Funktionsabschnitte 14-20 umschließt und im Bereich eines der Funktionsabschnitte, des Zündabschnitts 20, eine Öffnung 22 aufweist und wobei das Gehäuse 12 aus einem leitfähigen Material gefertigt ist oder zumindest eine leitfähige Oberfläche aufweist, so dass die von der Resonatoranordnung 10 umfassten elektromagnetisch wirksamen Elemente und Funktionseinheiten gegen elektromagnetische Felder von außen geschützt sind und sich im Betrieb der Resonatoranordnung 10 ergebende elektromagnetische Felder benachbart zu der Resonatoranordnung 10 positionierte Aggregate oder Funktionselemente nicht beeinträchtigen.To summarize, the present invention can thus be described briefly as follows: A
Bezugszeichenliste
- 10
- Resonatoranordnung
- 12
- Gehäuse
- 14
- Generatorabschnitt
- 16
- Induktivitätsabschnitt
- 18
- Kapazitätsabschnitt
- 20
- Zündabschnitt
- 22
- Öffnung
- 24
- Elektronik
- 26
- Induktivität
- 28
- Spulenwindungen
- 30
- Fläche
- 31
- Verschraubung
- 32
- hohler Kern
- 34
- Isolator
- 10
- resonator
- 12
- casing
- 14
- generator section
- 16
- inductance portion
- 18
- capacitance portion
- 20
- ignition section
- 22
- opening
- 24
- electronics
- 26
- inductance
- 28
- coil windings
- 30
- surface
- 31
- screw
- 32
- hollow core
- 34
- insulator
Claims (11)
wobei das Gehäuse (12) sämtliche vorgenannten Abschnitte (14, 16, 18, 20) umschließt und im Bereich des Zündabschnitts (20) eine Öffnung (22) aufweist und
wobei das Gehäuse (12) aus einem leitfähigen Material gefertigt ist oder zumindest eine leitfähige Oberfläche aufweist. 1. Resonatoranordnung (10) having a longitudinal axis and in a common housing (12) along the longitudinal axis of a section arranged generator section (14), inductance section (16), capacitance section (18) and ignition section (20),
wherein the housing (12) encloses all the aforementioned sections (14, 16, 18, 20) and in the region of the ignition section (20) has an opening (22) and
wherein the housing (12) is made of a conductive material or at least has a conductive surface.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT07021710T ATE544209T1 (en) | 2007-11-08 | 2007-11-08 | RESONATOR ARRANGEMENT |
EP07021710A EP2058909B1 (en) | 2007-11-08 | 2007-11-08 | Resonant assembly |
PL07021710T PL2058909T3 (en) | 2007-11-08 | 2007-11-08 | Resonant assembly |
US12/265,966 US7963262B2 (en) | 2007-11-08 | 2008-11-06 | Resonator assembly |
JP2008285159A JP2009115093A (en) | 2007-11-08 | 2008-11-06 | Resonator assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07021710A EP2058909B1 (en) | 2007-11-08 | 2007-11-08 | Resonant assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2058909A1 true EP2058909A1 (en) | 2009-05-13 |
EP2058909B1 EP2058909B1 (en) | 2012-02-01 |
Family
ID=39166543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07021710A Revoked EP2058909B1 (en) | 2007-11-08 | 2007-11-08 | Resonant assembly |
Country Status (5)
Country | Link |
---|---|
US (1) | US7963262B2 (en) |
EP (1) | EP2058909B1 (en) |
JP (1) | JP2009115093A (en) |
AT (1) | ATE544209T1 (en) |
PL (1) | PL2058909T3 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2890247B1 (en) * | 2005-08-25 | 2007-09-28 | Renault Sas | PLASMA IGNITION CANDLE FOR AN INTERNAL COMBUSTION ENGINE |
US8783220B2 (en) * | 2008-01-31 | 2014-07-22 | West Virginia University | Quarter wave coaxial cavity igniter for combustion engines |
US8887683B2 (en) * | 2008-01-31 | 2014-11-18 | Plasma Igniter LLC | Compact electromagnetic plasma ignition device |
JP5423417B2 (en) * | 2010-01-20 | 2014-02-19 | 株式会社デンソー | High frequency plasma ignition device |
JP6023966B2 (en) * | 2011-08-10 | 2016-11-09 | イマジニアリング株式会社 | Internal combustion engine |
DE102012111172B4 (en) * | 2012-11-20 | 2016-01-28 | Borgwarner Ludwigsburg Gmbh | Corona ignition device |
PE20170722A1 (en) | 2014-04-08 | 2017-07-04 | Plasma Igniter Inc | DOUBLE SIGNAL COAXIAL CAVITY RESONATOR PLASMA GENERATION |
EP3181891A4 (en) * | 2014-08-12 | 2017-11-08 | Imagineering, Inc. | Ignition device |
CN104612835A (en) * | 2015-01-07 | 2015-05-13 | 大连理工大学 | Plasma ignition combustion-supporting device with microwave coaxial resonant cavity |
US20190186369A1 (en) | 2017-12-20 | 2019-06-20 | Plasma Igniter, LLC | Jet Engine with Plasma-assisted Combustion |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1662626A1 (en) | 2004-11-29 | 2006-05-31 | Renault | New mounting method of a spark plug and bobbin assembly using a transmission of the tightning couple through the bobbin housing |
DE102006037246A1 (en) | 2005-08-10 | 2007-02-22 | Siemens Ag | Method for operating a spark plug of an ignition system in an internal combustion engine comprises igniting a plasma discharge between the electrodes of the plug and releasing heat loss between two excitations of the plasma discharge |
DE102005037420A1 (en) | 2005-08-08 | 2007-02-22 | Siemens Ag | High frequency-plasma-injection system, operating method for use in internal combustion engine, involves forming electrodes and ceramic body for forming sliding spark gap, and producing sliding plasma to burnout deposits on ceramic body |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20020101315A1 (en) * | 2001-01-31 | 2002-08-01 | Colin Hamer | Ignition coil with primary winding release |
DE10239410B4 (en) * | 2002-08-28 | 2004-12-09 | Robert Bosch Gmbh | Device for igniting an air-fuel mixture in an internal combustion engine |
JP4305294B2 (en) * | 2003-08-28 | 2009-07-29 | 株式会社デンソー | Ignition device for internal combustion engine |
JP2005236263A (en) * | 2004-01-19 | 2005-09-02 | Denso Corp | Ignition coil and its manufacturing method |
FR2890247B1 (en) * | 2005-08-25 | 2007-09-28 | Renault Sas | PLASMA IGNITION CANDLE FOR AN INTERNAL COMBUSTION ENGINE |
FR2895170B1 (en) * | 2005-12-15 | 2008-03-07 | Renault Sas | OPTIMIZING THE EXCITATION FREQUENCY OF A RESONATOR |
-
2007
- 2007-11-08 PL PL07021710T patent/PL2058909T3/en unknown
- 2007-11-08 EP EP07021710A patent/EP2058909B1/en not_active Revoked
- 2007-11-08 AT AT07021710T patent/ATE544209T1/en active
-
2008
- 2008-11-06 JP JP2008285159A patent/JP2009115093A/en active Pending
- 2008-11-06 US US12/265,966 patent/US7963262B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1662626A1 (en) | 2004-11-29 | 2006-05-31 | Renault | New mounting method of a spark plug and bobbin assembly using a transmission of the tightning couple through the bobbin housing |
DE102005037420A1 (en) | 2005-08-08 | 2007-02-22 | Siemens Ag | High frequency-plasma-injection system, operating method for use in internal combustion engine, involves forming electrodes and ceramic body for forming sliding spark gap, and producing sliding plasma to burnout deposits on ceramic body |
DE102006037246A1 (en) | 2005-08-10 | 2007-02-22 | Siemens Ag | Method for operating a spark plug of an ignition system in an internal combustion engine comprises igniting a plasma discharge between the electrodes of the plug and releasing heat loss between two excitations of the plasma discharge |
Also Published As
Publication number | Publication date |
---|---|
EP2058909B1 (en) | 2012-02-01 |
JP2009115093A (en) | 2009-05-28 |
ATE544209T1 (en) | 2012-02-15 |
PL2058909T3 (en) | 2012-09-28 |
US7963262B2 (en) | 2011-06-21 |
US20090120394A1 (en) | 2009-05-14 |
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