WO2008017576A1 - Fuel injection valve with ignition - Google Patents
Fuel injection valve with ignition Download PDFInfo
- Publication number
- WO2008017576A1 WO2008017576A1 PCT/EP2007/057431 EP2007057431W WO2008017576A1 WO 2008017576 A1 WO2008017576 A1 WO 2008017576A1 EP 2007057431 W EP2007057431 W EP 2007057431W WO 2008017576 A1 WO2008017576 A1 WO 2008017576A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ignition
- fuel injection
- injection valve
- valve
- fuel
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 63
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/06—Fuel-injectors combined or associated with other devices the devices being sparking plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9007—Ceramic materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
Definitions
- the present invention relates to a
- Fuel injector with integrated ignition is provided.
- spark plug and injector can be integrated into a common housing.
- From DE 103 37 630 Al is a fuel injection valve with a housing arranged in a piezoelectric actuator, a cylindrical valve body against the action of a
- the valve body is hollow and takes the high voltage electrode of the spark plug on, which is at least approximately flush with the valve body.
- An ignition transformer with primary and secondary windings is arranged in the housing. The spark plug generates a spark in the region of a fuel outlet opening between a high-voltage and a ground electrode.
- the primary and secondary windings are seated on a bobbin that is disposed between the piezoactuator and the valve body.
- Gasoline engines also inject more and more directly into the combustion chamber and / or use stratified charge processes. In these, a greater flexibility in terms of the burning time, the energy of the spark and the possible sequence of sparks in quick succession desired.
- a known ignition possibility which offers these features, is the high-frequency plasma ignition, as described for example in DE 10 2004 058 925 Al.
- a resonant circuit consisting of a coil as inductance and a capacitance excited by a high-frequency source resonant, up to the
- Capacitor-performing electrodes ignites a high-frequency plasma.
- the resonant circuit must be arranged directly in spatial proximity to the electrodes of an ignition device, since even the small capacity of the mutually insulated electrodes is sufficient and a further distance brings an undesirably large capacity of the required longer leads with it.
- Internal combustion engine can thus be either built more compact or by a second implementation of another component, such as a combustion chamber pressure sensor, are used.
- the coil can be arranged concentrically around the piezoactuator since it does not have a core, e.g. needed from soft iron.
- the high hysteresis of a core would be rather annoying in the high frequency resonant circuit.
- This arrangement of the coil is therefore possible only at a high frequency plasma ignition.
- the short lead to the first electrode is sufficient as a capacitance. As a result, a very compact design is possible, which consumes little more space than a conventional Brennstoffeinspritventil.
- the first ignition electrode is passed through the hollow valve needle and the hollow valve body.
- a central ignition electrode can be arranged in the valve needle.
- the ignition energy of the plasma discharge is then available exactly at the point at which the fuel exits the fuel injection valve.
- the ignition of the fuel can be done with a minimum of electrical energy. It no longer has to be so high demands on the quality of the electric resonator.
- the burnup of the ignition electrode is due to the extremely high temperatures the plasma discharge is extremely large, reduced to an acceptable level.
- an ignitable mixture can also be achieved more easily in the area of the ignition or can only be formed by an additional injection.
- valve needle and the valve body on an enclosing insulation layer, which may consist of ceramic.
- Valve needle and the valve body supported by an insulating body with respect to the fuel injection valve and isolated.
- the piezo actuator is surrounded by a Piezoaktuatorgephaseuse, usually formed by a Bourdon tube. On one side of the piezo actuator it is connected to the valve needle and on the other side to a hydraulic compensator. If this unit is isolated from the hydraulic compensator and the valve needle is also isolated, then the ignition spark can be easily fed to the first ignition electrode by a suitable electrical connection.
- the coil is advantageously connected to the first ignition electrode via a wire connected to the piezo actuator housing on the side of the insulating body.
- the wire is not or only slightly burdened by the mechanical movements when operating the Brennscherinspritventils.
- the ignition voltage is coupled without contact to the first ignition electrode of the coil via a capacitive coupling element, wherein the coil is electrically connected to the first ignition electrode via this.
- the high-frequency electrical energy is coupled purely capacitively into the metallic core of the valve needle.
- the possibly problematic wire connection can be omitted in the interior of the fuel injection valve.
- a housing of the fuel injection valve can serve as a second ignition electrode.
- the path from the tip of the first ignition electrodes to the outer edge of the housing then serves as a spark gap.
- Fuel injection valve on a double-walled housing wherein between an inner wall and an outer wall, the fuel is supplied to a closable by the valve body sealing seat, and the coil between the inner wall and the outer wall is arranged.
- the coil is then arranged in the space traversed by fuel between the inner and outer walls of the housing of the Brennscherinspritventils. This allows for a more compact design, on the other hand, the flowing fuel is forced by the spiral winding of the coil on a helical path. This improves due to the twist, the thermal coupling of the fluid to the surrounding walls, thus improving the cooling of the fuel injection valve.
- the coil may be disposed within the inner wall.
- FIG. 1 is a schematic sectional view of a first embodiment according to the invention
- Fig. 2 is a schematic sectional view of a second embodiment of the invention.
- Fig. 3 is a schematic sectional view of a third embodiment of the invention.
- a coil 2 is arranged inside an inner wall 3 of a housing 4 and around a tube spring 5 of a piezoactuator 7 forming the piezoelectric actuator housing.
- a valve needle 6 is connected to the piezoactuator 7 and has a valve body 8, which forms a sealing seat 11 with a sealing seat surface 10 arranged on a neck 9 of the housing 4.
- the valve needle 6 consists of an outer part, which consists of electrically insulating ceramic 13, and a first ignition electrode 12, which leads the ignition voltage in the region of the combustion chamber, not shown.
- the tube spring 5 of the piezo actuator 7 is connected via an insulating body 14 with a hydraulic compensator 15. Via a fuel supply 16, fuel is passed into a gap between the inner wall 3 of the housing 4 and an outer wall 16 of the housing 4 and finally fed to the sealing seat 11.
- the coil 2 as part of a
- the length of the piezoactuator 7 increases and the valve needle 6 lifts the valve body 18 out of the sealing seat 11 so that fuel is supplied via the fuel supply 19 and the gap between the inner wall 3 and the outer wall 16 of the housing 4 the sealing seat 11 flows and is injected from there into a combustion chamber, not shown.
- the hydraulic compensator 15 compensates for differences in length of the housing 4 due to the heat.
- a resonant circuit Via the electrical supply line 20, a resonant circuit, which consists of the inductance of the coil 2 and the capacitance of the first ignition electrode 12 relative to the neck 9 of the housing 4, excited. This causes the ignition of a high-frequency
- FIG. 2 shows a further exemplary embodiment of a fuel injection valve 21 according to the invention, in which a high-frequency plasma ignition system is integrated.
- a coil 22 is disposed in the space between the inner wall 3 and the outer wall 16 of the housing 4 and connected via the electrical lead 20 to a high-frequency voltage source, not shown.
- the valve needle 6 with the valve body 8 is connected to the piezoactuator 7 and the tube spring 5.
- the sealing seat surface 10 on the neck 9 of the housing 4 forms with the valve body 8 the sealing seat 11.
- the valve needle 6 has an outer, electrically insulating ceramic 13 and receives the first ignition electrode 12.
- the Bourdon tube 5 of the piezoactuator 7 is located above the insulating body 14 on the hydraulic compensator 15 at. Via a fuel supply 16, fuel is in a gap between the inner wall 3 of the housing 4 and the outer wall 16 of the housing
- the coil 22 as part of a high-frequency resonant circuit outputs its electrical voltage via a wire 23 to the cover plate 18 of the tube spring 5 of the piezo actuator 7.
- Fuel injection valve 21 allows a more compact design and the fuel flowing therethrough is forced by the spiral winding of coil 22 to a helical path. This improves due to the twist, the thermal coupling of the fluid to the surrounding walls 3,16 and thus improves the cooling of the fuel injection valve.
- FIG. 3 shows a third exemplary embodiment of a fuel injection valve 24 according to the invention with integrated high-frequency plasma ignition.
- the coil 22 arranged between the inner wall 3 and the outer wall 16 of the housing 4 is connected to the electrical supply line 20.
- the valve needle 6 with the valve body 8 is connected to the piezoactuator 7 and the tube spring 5, has an outer, electrically insulating ceramic 13 and receives the first ignition electrode 12.
- the sealing seat surface 10 on the neck 9 of the housing 4 forms with the valve body 8, the sealing seat 11.
- the first ignition electrode 12 is of a capacitive
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a fuel injection valve with ignition, in particular, an injection valve for a fuel injection system on an internal combustion engine, comprising a piezoactuator (7), operating a valve closure body (8) by means of a valve needle (6), by means of which the fuel output may be regulated and at least one first ignition electrode (12) facing a combustion chamber side and a coil (2,22) of an ignition induction circuit, electrically connected to the first ignition electrode (12). The coil (2,22) is arranged concentrically about the piezoactuator (7) and encloses the same.
Description
Beschreibungdescription
Brennstoffeinspritzventil mit ZündungFuel injector with ignition
Die vorliegende Erfindung betrifft einThe present invention relates to a
Brennstoffeinspritzventil mit integrierter Zündung.Fuel injector with integrated ignition.
Die Verringerung des Fahrzeuggewichts spielt neben der Optimierung des Verbrennungsvorgangs eine wichtige Rolle, um sowohl den Kraftstoffverbrauch als auch den Abgasausstoß von Kraftfahrzeugen zu verringern. Dies gilt insbesondere auch für Verbrennungskraftmaschinen selbst, die in den vergangenen Jahrzehnten bezogen auf die von ihnen erzeugte Antriebsleistung erheblich kompakter und damit auch leichter wurden.The reduction of vehicle weight plays an important role in addition to the optimization of the combustion process in order to reduce both the fuel consumption and the exhaust emissions of motor vehicles. This also applies in particular to internal combustion engines themselves, which have become considerably more compact and thus also lighter in the past decades in relation to the drive power generated by them.
Die Verkleinerung der Abmessungen einerThe reduction of the dimensions of one
Vebrennungskraftmaschine erfordert auch eine Verkleinerung aller im und am Motor eingesetzten Komponenten wie Brennstoffeinspritzventile, Zündkerzen usw. Einer weiterenInternal combustion engine also requires downsizing of all components used in and on the engine, such as fuel injectors, spark plugs, etc. Another
Verkleinerung der Abmessungen der Komponenten ist jedoch eine Grenze gesetzt, die durch die jeweilige Funktion des Bauteils gegeben ist. Zum Beispiel erlauben die erheblichen Kräfte, die beim Schaltvorgang eines piezoelektrischen Einspritzventils auftreten, keine wesentliche Verringerung der Wandstarke des Außengehäuses.Reducing the dimensions of the components, however, set a limit, which is given by the respective function of the component. For example, the significant forces involved in the switching action of a piezoelectric injector do not allow a substantial reduction in the wall thickness of the outer housing.
Ein Lösungsansatz besteht in der Zusammenlegung von mehreren Funktionen in eine Komponente. So können die Funktionen von Zündkerze und Injektor in ein gemeinsames Gehäuse integriert werden .One approach is to merge multiple functions into one component. Thus, the functions of spark plug and injector can be integrated into a common housing.
Aus der DE 103 37 630 Al ist ein Brennstoffeinspritzventil mit einem in einem Gehäuse angeordneten Piezoaktuator, der einen zylindrischen Ventilkörper gegen die Wirkung einerFrom DE 103 37 630 Al is a fuel injection valve with a housing arranged in a piezoelectric actuator, a cylindrical valve body against the action of a
Feder bewegt und damit einen Kraftstoffaustritt steuert, und mit einer integrierten Zündkerze bekannt. Der Ventilkörper ist hohl und nimmt die Hochspannungselektrode der Zündkerze
auf, die zumindest annähernd mit dem Ventilkörper bündig abschließt. Ein Zündtransformator mit Primär- und Sekundärwicklung ist im Gehäuse angeordnet. Die Zündkerze erzeugt im Bereich einer Kraftstoffaustrittsöffnung zwischen einer Hochspannungs- und einer Masseelektrode einen Zündfunken .Spring moves and thus controls a fuel leak, and known with an integrated spark plug. The valve body is hollow and takes the high voltage electrode of the spark plug on, which is at least approximately flush with the valve body. An ignition transformer with primary and secondary windings is arranged in the housing. The spark plug generates a spark in the region of a fuel outlet opening between a high-voltage and a ground electrode.
In einer Ausführungsform sitzen die Primär- und Sekundärwicklung auf einem Spulenkörper, der zwischen dem Piezoaktuator und dem Ventilkörper angeordnet ist.In one embodiment, the primary and secondary windings are seated on a bobbin that is disposed between the piezoactuator and the valve body.
Nachteilig an diesem Stand der Technik ist, dass die Primär- und Sekundärwicklung zusätzliche Baulänge beanspruchen.A disadvantage of this prior art is that the primary and secondary windings require additional structural length.
Auch Ottokraftstoffmotoren spritzen in immer größerer Anzahl direkt in den Brennraum ein und/oder nutzen Schichtladungsverfahren. Bei diesen ist eine größere Flexibilität hinsichtlich der Brenndauer, der Energie des Zündfunkens sowie der möglichen Abfolge von Zündfunken kurz hintereinander erwünscht. Eine bekannte Zündmöglichkeit, die diese Merkmale bietet, ist die Hochfrequenzplasmazündung, wie sie beispielsweise in der DE 10 2004 058 925 Al beschrieben wird. Dabei wird ein Schwingkreis, bestehend aus einer Spule als Induktivität und einer Kapazität durch eine Hochfrequenzquelle resonant angeregt, bis an den dieGasoline engines also inject more and more directly into the combustion chamber and / or use stratified charge processes. In these, a greater flexibility in terms of the burning time, the energy of the spark and the possible sequence of sparks in quick succession desired. A known ignition possibility, which offers these features, is the high-frequency plasma ignition, as described for example in DE 10 2004 058 925 Al. In this case, a resonant circuit, consisting of a coil as inductance and a capacitance excited by a high-frequency source resonant, up to the
Kapazität darstellenden Elektroden ein Hochfrequenzplasma zündet .Capacitor-performing electrodes ignites a high-frequency plasma.
Dabei muss der Schwingkreis unmittelbar in räumlicher Nähe zu den Elektroden einer Zündvorrichtung angeordnet werden, da bereits die geringe Kapazität der zueinander isolierten Elektroden ausreicht und ein weiterer Abstand eine unerwünscht große Kapazität der erforderlichen längeren Zuleitungen mit sich bringt.In this case, the resonant circuit must be arranged directly in spatial proximity to the electrodes of an ignition device, since even the small capacity of the mutually insulated electrodes is sufficient and a further distance brings an undesirably large capacity of the required longer leads with it.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Brennstoffeinspritzventil mit integrierter Zündung anzugeben,
das eine Hochfrequenzplasmazündung ermöglicht, dabei in seinem Aufbau kompakt ist und keine wesentlich größeren Maße als ein reines Brennstoffeinspritzventil aufweist.It is therefore an object of the present invention to provide a fuel injection valve with integrated ignition, which allows a high-frequency plasma ignition, it is compact in construction and does not have much greater dimensions than a pure fuel injection valve.
Diese Aufgabe wird durch ein Brennstoffeinspritzventil mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.This object is achieved by a fuel injection valve having the features of claim 1. Advantageous developments are specified in the subclaims.
Vorteilhaft ist bei der Verwendung eines erfindungsgemäßen Brennstoffeinspritzventils bei einerIt is advantageous in the use of a fuel injection valve according to the invention in a
Verbrennungskraftmaschine nur eine Durchführung durch den Motorblock in den Brennraum notwendig. DieInternal combustion engine only a passage through the engine block in the combustion chamber necessary. The
Verbrennungskraftmaschine kann also entweder kompakter gebaut oder aber durch eine zweite Durchführung eine weitere Komponente, etwa ein Brennraumdrucksensor, eingesetzt werden. Die Spule kann konzentrisch um den Piezoaktuator angeordnet werden, da diese keinen Kern, z.B. aus Weicheisen benötigt. Die hohe Hysterese eines Kerns wäre bei dem Hochfrequenzschwingkreis eher störend. Diese Anordnung der Spule ist daher erst bei einer Hochfrequenzplasmazündung möglich. Auch reicht die kurze Zuleitung zu der ersten Elektrode als Kapazität aus. Als Folge ist ein sehr kompakter Aufbau möglich, der kaum mehr Bauraum beansprucht, als ein herkömmliches Brennstoffeinspritventil .Internal combustion engine can thus be either built more compact or by a second implementation of another component, such as a combustion chamber pressure sensor, are used. The coil can be arranged concentrically around the piezoactuator since it does not have a core, e.g. needed from soft iron. The high hysteresis of a core would be rather annoying in the high frequency resonant circuit. This arrangement of the coil is therefore possible only at a high frequency plasma ignition. Also, the short lead to the first electrode is sufficient as a capacitance. As a result, a very compact design is possible, which consumes little more space than a conventional Brennstoffeinspritventil.
In günstiger Ausführungsform ist die erste Zündelektrode durch die hohle Ventilnadel und den hohlen Ventilkörper hindurchgeführt .In a favorable embodiment, the first ignition electrode is passed through the hollow valve needle and the hollow valve body.
Dadurch kann z.B. eine zentrale Zündelektrode in der Ventilnadel angeordnet werden. Die Zündenergie der Plasmaentladung steht dann genau an der Stelle zur Verfügung, an der der Brennstoff aus dem Brennstoffeinspritventil austritt. Damit kann die Zündung des Treibstoffs mit einem Minimum an elektrischer Energie erfolgen. Es müssen nicht mehr so hohe Anforderungen an die Güte des elektrischen Resonators gestellt werden. Als Folge wird der Abbrand der Zünd-Elektrode, der aufgrund der extrem hohen Temperaturen
der Plasmaentladung überaus groß ist, auf ein akzeptables Maß verringert. Bei Magergemischverbrennungskraftmaschinen bzw. Schichtladungsverbrennungskraftmaschinen kann auch leichter im Bereich der Zündung ein zündfähiges Gemisch erreicht werden bzw. durch eine zusätzliche Einspritzung erst gebildet werden .As a result, for example, a central ignition electrode can be arranged in the valve needle. The ignition energy of the plasma discharge is then available exactly at the point at which the fuel exits the fuel injection valve. Thus, the ignition of the fuel can be done with a minimum of electrical energy. It no longer has to be so high demands on the quality of the electric resonator. As a result, the burnup of the ignition electrode is due to the extremely high temperatures the plasma discharge is extremely large, reduced to an acceptable level. In lean burn combustion engines or stratified charge combustion engines, an ignitable mixture can also be achieved more easily in the area of the ignition or can only be formed by an additional injection.
In vorteilhafter Ausführung weist die Ventilnadel und der Ventilkörper eine sie umschließende Isolationsschicht auf, die aus Keramik bestehen kann.In an advantageous embodiment, the valve needle and the valve body on an enclosing insulation layer, which may consist of ceramic.
Durch die elektrisch isolierende Keramik, die zugleich temperaturbeständig und mechanisch widerstandsfähig ist, kann der Zündfunke von der Spitze der ersten Zündelektrode durch den Austrittsbereich des Brennstoffs hindurch zu einemDue to the electrically insulating ceramic, which is also temperature resistant and mechanically resistant, the spark from the tip of the first ignition electrode through the outlet region of the fuel through to a
Gehäuse des Brennstoffeinspritventils und/oder zur Masse der Verbrennungskraftmaschine gelenkt werden.Housing of the fuel injection valve and / or be directed to the mass of the internal combustion engine.
In vorteilhafter Ausführung wird eine Einheit aus dem Piezoaktuator, einem Piezoaktuatorgehäuse sowie derIn an advantageous embodiment, a unit of the piezoelectric actuator, a Piezoaktuatorgehäuse and the
Ventilnadel und dem Ventilkörper durch einen Isolierkörper gegenüber dem Brennstoffeinspritzventil abgestützt und isoliert .Valve needle and the valve body supported by an insulating body with respect to the fuel injection valve and isolated.
Der Piezoaktuator wird von einem Piezoaktuatorgehäuse, zumeist gebildet von einer Rohrfeder, umgeben. An der einen Seite des Piezoaktuators ist dieser mit der Ventilnadel und an der anderen Seite mit einem hydraulischen Kompensator verbunden. Wird diese Einheit gegenüber dem hydraulischen Kompensator isoliert und ist auch die Ventilnadel isoliert, so kann der ersten Zündelektrode der Zündfunke durch eine geeignete elektrische Verbindung leicht zugeführt werden.The piezo actuator is surrounded by a Piezoaktuatorgehäuse, usually formed by a Bourdon tube. On one side of the piezo actuator it is connected to the valve needle and on the other side to a hydraulic compensator. If this unit is isolated from the hydraulic compensator and the valve needle is also isolated, then the ignition spark can be easily fed to the first ignition electrode by a suitable electrical connection.
Vorteilhaft ist die Spule über einen auf der Seite des Isolierkörpers mit dem Piezoaktuatorgehäuse verbundenen Draht mit der ersten Zündelektrode verbunden.
Dadurch wird der Draht nicht bzw. nur geringfügig durch die mechanischen Bewegungen beim Betätigen des Brennstoffeinspritventils belastet .The coil is advantageously connected to the first ignition electrode via a wire connected to the piezo actuator housing on the side of the insulating body. As a result, the wire is not or only slightly burdened by the mechanical movements when operating the Brennstoffeinspritventils.
In vorteilhafter Ausführung wird die Zündspannung auf die erste Zündelektrode von der Spule über ein kapazitives Koppelelement berührungslos einkoppelt, wobei die Spule mit der ersten Zündelektrode über diese elektrisch verbunden ist.In an advantageous embodiment, the ignition voltage is coupled without contact to the first ignition electrode of the coil via a capacitive coupling element, wherein the coil is electrically connected to the first ignition electrode via this.
Die hochfrequente elektrische Energie wird rein kapazitiv in den metallischen Kern der Ventilnadel eingekoppelt. Damit kann die unter Umständen problematische Drahtverbindung im Inneren des Brennstoffeinspritzventils entfallen.The high-frequency electrical energy is coupled purely capacitively into the metallic core of the valve needle. Thus, the possibly problematic wire connection can be omitted in the interior of the fuel injection valve.
Ein Gehäuse des Brennstoffeinspritzventils kann als zweite Zündelektrode dienen.A housing of the fuel injection valve can serve as a second ignition electrode.
Der Weg von der Spitze der ersten Zündelektroden bis zum Außenrand des Gehäuses dient dann als Funkenstrecke.The path from the tip of the first ignition electrodes to the outer edge of the housing then serves as a spark gap.
In günstiger Ausführungsform weist dasIn a favorable embodiment, the
Brennstoffeinspritzventil ein doppelwandiges Gehäuse auf, wobei zwischen einer Innenwand und einer Außenwand der Brennstoff zu einem von dem Ventilkörper verschließbaren Dichtsitz zugeführt wird, und die Spule zwischen der Innenwand und der Außenwand angeordnet ist.Fuel injection valve on a double-walled housing, wherein between an inner wall and an outer wall, the fuel is supplied to a closable by the valve body sealing seat, and the coil between the inner wall and the outer wall is arranged.
Die Spule ist dann im von Brennstoff durchströmten Zwischenraum zwischen Innen- und Außenwand des Gehäuses des Brennstoffeinspritventils angeordnet. Dies erlaubt zum einen eine kompaktere Bauweise, zum anderen wird der durchströmende Brennstoff durch die spiralförmige Wicklung der Spule auf eine spiralförmige Bahn gezwungen. Dies verbessert aufgrund des Dralls die thermische Ankopplung des Fluids an die umgebenden Wände und verbessert somit die Kühlung des Brennstoffeinspritzventils .
Alternativ kann die Spule innerhalb der Innenwand angeordnet sein .The coil is then arranged in the space traversed by fuel between the inner and outer walls of the housing of the Brennstoffeinspritventils. This allows for a more compact design, on the other hand, the flowing fuel is forced by the spiral winding of the coil on a helical path. This improves due to the twist, the thermal coupling of the fluid to the surrounding walls, thus improving the cooling of the fuel injection valve. Alternatively, the coil may be disposed within the inner wall.
Die vorliegende Erfindung wird nachfolgend mithilfe von Ausführungsbeispielen anhand der beigefügten Zeichnungen näher erläutert. Es zeigtThe present invention will be explained in more detail by means of embodiments with reference to the accompanying drawings. It shows
Fig. 1 eine schematische Schnittansicht eines ersten erfindungsgemäßen Ausführungsbeispiels,1 is a schematic sectional view of a first embodiment according to the invention,
Fig. 2 eine schematische Schnittansicht eines zweiten erfindungsgemäßen Ausführungsbeispiels undFig. 2 is a schematic sectional view of a second embodiment of the invention and
Fig. 3 eine schematische Schnittansicht eines dritten erfindungsgemäßen Ausführungsbeispiels.Fig. 3 is a schematic sectional view of a third embodiment of the invention.
Fig. 1 zeigt ein Ausführungsbeispiel eines ersten erfindungsgemäßen Brennstoffeinspritventils 1, in das ein Hochfrequenzplasmazündsystem integriert ist. Eine Spule 2 ist innerhalb einer Innenwand 3 eines Gehäuses 4 und um eine das Piezoaktuatorgehäuse bildende Rohrfeder 5 eines Piezoaktuators 7 herum angeordnet. Eine Ventilnadel 6 ist mit dem Piezoaktuator 7 verbunden und weist einen Ventilkörper 8 auf, der mit einer an einem Hals 9 des Gehäuses 4 angeordneten Dichtsitzfläche 10 einen Dichtsitz 11 bildet. Die Ventilnadel 6 besteht aus einem äußeren Teil, der aus elektrisch isolierender Keramik 13 besteht, und einer ersten Zündelektrode 12, die die Zündspannung in den Bereich des nicht dargestellten Brennraums führt. Die Rohrfeder 5 des Piezoaktuators 7 ist über einen Isolierkörper 14 mit einem hydraulischen Kompensator 15 verbunden. Über eine Brennstoffzufuhr 16 wird Brennstoff in einen Zwischenraum zwischen der Innenwand 3 des Gehäuses 4 und einer Außenwand 16 des Gehäuses 4 geleitet und schließlich dem Dichtsitz 11 zugeführt. Die Spule 2 als Teil eines1 shows an exemplary embodiment of a first fuel injection valve 1 according to the invention, in which a high-frequency plasma ignition system is integrated. A coil 2 is arranged inside an inner wall 3 of a housing 4 and around a tube spring 5 of a piezoactuator 7 forming the piezoelectric actuator housing. A valve needle 6 is connected to the piezoactuator 7 and has a valve body 8, which forms a sealing seat 11 with a sealing seat surface 10 arranged on a neck 9 of the housing 4. The valve needle 6 consists of an outer part, which consists of electrically insulating ceramic 13, and a first ignition electrode 12, which leads the ignition voltage in the region of the combustion chamber, not shown. The tube spring 5 of the piezo actuator 7 is connected via an insulating body 14 with a hydraulic compensator 15. Via a fuel supply 16, fuel is passed into a gap between the inner wall 3 of the housing 4 and an outer wall 16 of the housing 4 and finally fed to the sealing seat 11. The coil 2 as part of a
Hochfrequenzschwingkreises gibt ihre elektrische Spannung über einen Draht 17 an eine Deckelplatte 18 der Rohrfeder 5 des Piezoaktuators 7 ab, die sich bei Betätigung des
Piezoaktuators 7 nicht oder zumindest nur geringfügig mechanisch bewegt. Über die Rohrfeder 5 ist somit eine elektrisch leitende Verbindung zwischen der Spule 2 und der ersten Zündelektrode 12 in der Ventilnadel 6 hergestellt. Die Spule 2 ist über eine elektrische Zuleitung 20 mit einer nicht dargestellten Hochfrequenzspannungsquelle verbunden.Hochfrequenzschwingkreises outputs its electrical voltage via a wire 17 to a cover plate 18 of the tube spring 5 of the piezoelectric actuator 7, which is activated upon actuation of the Piezoaktuators 7 not or at least only slightly moved mechanically. An electrically conductive connection between the coil 2 and the first ignition electrode 12 in the valve needle 6 is thus produced via the tubular spring 5. The coil 2 is connected via an electrical supply line 20 with a high-frequency voltage source, not shown.
Wenn an den Piezoaktuator 7 eine Spannung angelegt wird, vergrößert sich die Länge des Piezoaktuators 7 und die Ventilnadel 6 hebt den Ventilkörper 18 aus dem Dichtsitz 11, so dass über die Brennstoffzufuhr 19 und den Zwischenraum zwischen Innenwand 3 sowie Außenwand 16 des Gehäuses 4 Brennstoff zu dem Dichtsitz 11 strömt und von dort in einen nicht dargestellten Brennraum eingespritzt wird. Dabei gleicht der hydraulische Kompensator 15 Längenunterschiede des Gehäuses 4 aufgrund der Wärme aus. Über die elektrische Zuleitung 20 wird ein Schwingkreis, der aus der Induktivität der Spule 2 und der Kapazität der ersten Zündelektrode 12 gegenüber dem Hals 9 des Gehäuses 4 besteht, angeregt. Dadurch kommt es zur Zündung eines hochfrequentenWhen a voltage is applied to the piezoactuator 7, the length of the piezoactuator 7 increases and the valve needle 6 lifts the valve body 18 out of the sealing seat 11 so that fuel is supplied via the fuel supply 19 and the gap between the inner wall 3 and the outer wall 16 of the housing 4 the sealing seat 11 flows and is injected from there into a combustion chamber, not shown. At the same time, the hydraulic compensator 15 compensates for differences in length of the housing 4 due to the heat. Via the electrical supply line 20, a resonant circuit, which consists of the inductance of the coil 2 and the capacitance of the first ignition electrode 12 relative to the neck 9 of the housing 4, excited. This causes the ignition of a high-frequency
Plasmafunkens zwischen der ersten Zündelelektrode 12 und dem als zweite Zündelektrode dienenden Hals 9.Plasma arc between the first Zündel electrode 12 and serving as the second ignition electrode neck. 9
Fig. 2 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Brennstoffeinspritventils 21, in das ein Hochfrequenzplasmazündsystem integriert ist. Dabei sind der Fig. 1 entsprechende Bauteile mit denselben Bezugszeichen bezeichnet. Eine Spule 22 ist im Zwischenraum zwischen der Innenwand 3 und der Außenwand 16 des Gehäuses 4 angeordnet und über die elektrische Zuleitung 20 mit einer nicht dargestellten Hochfrequenzspannungsquelle verbunden. Die Ventilnadel 6 mit dem Ventilkörper 8 ist mit dem Piezoaktuator 7 und der Rohrfeder 5 verbunden. Die Dichtsitzfläche 10 an dem Hals 9 des Gehäuses 4 bildet mit dem Ventilkörper 8 den Dichtsitz 11. Die Ventilnadel 6 hat eine äußere, elektrisch isolierende Keramik 13 und nimmt die erste Zündelektrode 12 auf. Die Rohrfeder 5 des Piezoaktuators 7 liegt über den Isolierkörper 14 an dem
hydraulischen Kompensator 15 an. Über eine Brennstoffzufuhr 16 wird Brennstoff in einen Zwischenraum zwischen der Innenwand 3 des Gehäuses 4 und der Außenwand 16 des GehäusesFIG. 2 shows a further exemplary embodiment of a fuel injection valve 21 according to the invention, in which a high-frequency plasma ignition system is integrated. 1 corresponding components are designated by the same reference numerals. A coil 22 is disposed in the space between the inner wall 3 and the outer wall 16 of the housing 4 and connected via the electrical lead 20 to a high-frequency voltage source, not shown. The valve needle 6 with the valve body 8 is connected to the piezoactuator 7 and the tube spring 5. The sealing seat surface 10 on the neck 9 of the housing 4 forms with the valve body 8 the sealing seat 11. The valve needle 6 has an outer, electrically insulating ceramic 13 and receives the first ignition electrode 12. The Bourdon tube 5 of the piezoactuator 7 is located above the insulating body 14 on the hydraulic compensator 15 at. Via a fuel supply 16, fuel is in a gap between the inner wall 3 of the housing 4 and the outer wall 16 of the housing
4 geleitet und schließlich dem Dichtsitz 11 zugeführt. Die Spule 22 als Teil eines Hochfrequenzschwingkreises gibt ihre elektrische Spannung über einen Draht 23 an die Deckelplatte 18 der Rohrfeder 5 des Piezoaktuators 7 ab.4 and finally fed to the sealing seat 11. The coil 22 as part of a high-frequency resonant circuit outputs its electrical voltage via a wire 23 to the cover plate 18 of the tube spring 5 of the piezo actuator 7.
Die Spule 22 in dem von Brennstoff durchströmten Zwischenraum zwischen Innenwand 3 und Außenwand 16 des Gehäuses 4 desThe coil 22 in the space traversed by fuel between the inner wall 3 and outer wall 16 of the housing 4 of the
Brennstoffeinspritventils 21 erlaubt eine kompaktere Bauweise und der durchströmende Brennstoff wird durch die spiralförmige Wicklung der Spule 22 auf eine spiralförmige Bahn gezwungen. Dies verbessert aufgrund des Dralls die thermische Ankopplung des Fluids an die umgebenden Wände 3,16 und verbessert somit die Kühlung des Brennstoffeinspritzventils .Fuel injection valve 21 allows a more compact design and the fuel flowing therethrough is forced by the spiral winding of coil 22 to a helical path. This improves due to the twist, the thermal coupling of the fluid to the surrounding walls 3,16 and thus improves the cooling of the fuel injection valve.
Fig. 3 zeigt ein drittes Ausführungsbeispiel eines erfindungsgemäßen Brennstoffeinspritventils 24 mit integrierter Hochfrequenzplasmazündung. Dabei sind den vorherigen Figuren entsprechende Bauteile mit denselben Bezugszeichen bezeichnet. Die zwischen der Innenwand 3 und der Außenwand 16 des Gehäuses 4 angeordnete Spule 22 ist mit der elektrischen Zuleitung 20 verbunden. Die Ventilnadel 6 mit dem Ventilkörper 8 ist mit dem Piezoaktuator 7 und der Rohrfeder 5 verbunden, hat eine äußere, elektrisch isolierende Keramik 13 und nimmt die erste Zündelektrode 12 auf. Die Dichtsitzfläche 10 an dem Hals 9 des Gehäuses 4 bildet mit dem Ventilkörper 8 den Dichtsitz 11. Die Rohrfeder3 shows a third exemplary embodiment of a fuel injection valve 24 according to the invention with integrated high-frequency plasma ignition. Here, the previous figures corresponding components are designated by the same reference numerals. The coil 22 arranged between the inner wall 3 and the outer wall 16 of the housing 4 is connected to the electrical supply line 20. The valve needle 6 with the valve body 8 is connected to the piezoactuator 7 and the tube spring 5, has an outer, electrically insulating ceramic 13 and receives the first ignition electrode 12. The sealing seat surface 10 on the neck 9 of the housing 4 forms with the valve body 8, the sealing seat 11. The Bourdon tube
5 des Piezoaktuators 7 liegt über den Isolierkörper 14 an dem hydraulischen Kompensator 15 an. Anstatt mit einem Draht eine elektrisch leitende Verbindung zu der ersten Zündelektrode 12 herzustellen, ist bei dem vorliegenden Ausführungsbeispiel die erste Zündelektrode 12 von einem kapazitiven5 of the piezo actuator 7 abuts on the insulating body 14 on the hydraulic compensator 15. Instead of using a wire to make an electrically conductive connection to the first ignition electrode 12, in the present embodiment, the first ignition electrode 12 is of a capacitive
Koppelelement 25 umgeben, das mit der Spule 22 verbunden ist.
Wenn eine hochfrequente Spannung über die elektrische Zuleitung 20 zugeführt wird, wird die Zündenergie kapazitiv auf die erste Zündelektrode 12 übertragen. Es kann daher nicht zu einem Brechen eines Drahtes aufgrund von vielfachen Wechselbelastungen oder Vibrationen kommen.
Surrounding coupling element 25 which is connected to the coil 22. When a high-frequency voltage is supplied via the electrical supply line 20, the ignition energy is transferred capacitively to the first ignition electrode 12. It can therefore not come to a breaking of a wire due to multiple alternating loads or vibrations.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Brennstoffeinspritventil1 fuel injection valve
2 Spule2 coil
3 Innenwand3 inner wall
4 Gehäuse4 housing
5 Rohrfeder5 Bourdon tube
6 Ventilnadel6 valve needle
7 Piezoaktuator7 piezo actuator
8 Ventilkörper8 valve body
9 Hals9 neck
10 Dichtsitzfläche10 sealing seat surface
11 Dichtsitz11 sealing seat
12 erste Zündelektrode12 first ignition electrode
13 Keramik13 ceramics
14 Isolierkörper14 insulating body
15 hydraulischer Kompensator15 hydraulic compensator
16 Außenwand16 outer wall
17 Draht17 wire
18 Deckelplatte18 cover plate
19 Brennstoffzufuhr19 fuel supply
20 elektrische Zuleitung20 electrical supply line
21 Brennstoffeinspritventil21 fuel injection valve
22 Spule22 coil
23 Draht23 wire
24 Brennstoffeinspritventil24 fuel injection valve
25 Koppelelement
25 coupling element
Claims
1. Brennstoffeinspritzventil mit Zündung, insbesondere Einspritzventil für eine Brennstoffeinspritzanlage einer Verbrennungsmaschine, mit einem Piezoaktuator (7), der über eine Ventilnadel (6) einen Ventilschließkörper (8) betätigt, durch den der Brennstoffaustritt regelbar ist, sowie zumindest einer zu einer Brennraumseite hin orientierten ersten Zündelektrode (12) und einer Spule (2,22) eines Zündschwingkreises, die mit der ersten Zündelektrode (12) elektrisch verbunden ist, dadurch gekennzeichnet, dass die Spule (2, 22) konzentrisch um den Piezoaktuator (7) herum angeordnet ist und diesen umschließt.1. Fuel injection valve with ignition, in particular injection valve for a fuel injection system of an internal combustion engine, with a piezoelectric actuator (7) via a valve needle (6) actuates a valve closing body (8) through which the fuel outlet is regulated, and at least one oriented to a combustion chamber side first ignition electrode (12) and a coil (2,22) of a Zündschwingkreises, which is electrically connected to the first ignition electrode (12), characterized in that the coil (2, 22) is arranged concentrically around the piezoelectric actuator (7) around and encloses this.
2. Brennstoffeinspritzventil mit Zündung nach Anspruch 1, dadurch gekennzeichnet, dass die erste Zündelektrode (12) durch die hohle Ventilnadel (6) und den hohlen Ventilkörper (8) hindurchgeführt ist.2. Fuel injection valve with ignition according to claim 1, characterized in that the first ignition electrode (12) through the hollow valve needle (6) and the hollow valve body (8) is passed.
3. Brennstoffeinspritzventil mit Zündung nach Anspruch 2, dadurch gekennzeichnet, dass die Ventilnadel (6) und der Ventilkörper (8) eine sie umschließende Isolationsschicht aufweisen.3. Fuel injection valve with ignition according to claim 2, characterized in that the valve needle (6) and the valve body (8) have an enclosing insulation layer.
4. Brennstoffeinspritzventil mit Zündung nach Anspruch 3, dadurch gekennzeichnet, dass die Isolationsschicht aus Keramik (13) besteht.4. Fuel injection valve with ignition according to claim 3, characterized in that the insulating layer of ceramic (13).
5. Brennstoffeinspritzventil mit Zündung nach Anspruch 3 oder5. Fuel Injector with ignition according to claim 3 or
4, dadurch gekennzeichnet, dass eine Einheit aus dem Piezoaktuator (7), einem4, characterized in that a unit of the piezoelectric actuator (7), a
Piezoaktuatorgehäuse sowie der Ventilnadel (6) und dem Ventilkörper durch einen Isolierkörper (14) gegenüber demPiezoaktuatorgehäuse and the valve needle (6) and the valve body by an insulating body (14) relative to the
Brennstoffeinspritzventil abgestützt und isoliert wird.Fuel injector is supported and isolated.
6. Brennstoffeinspritzventil mit Zündung nach Anspruch 5, dadurch gekennzeichnet, dass die Spule (2) über einen auf der Seite des Isolierkörpers (14) mit dem Piezoaktuatorgehäuse verbundenen Draht (17, 23) mit der ersten Zündelektrode (12) verbunden ist .6. Fuel Injector with ignition according to claim 5, characterized in that the coil (2) via a on the side of the insulating body (14) connected to the Piezoaktuatorgehäuse wire (17, 23) is connected to the first ignition electrode (12).
7. Brennstoffeinspritzventil mit Zündung nach Anspruch 5, dadurch gekennzeichnet, dass die Spule über ein kapazitives Koppelelement (25) berührungslos die Zündspannung auf die erste Zündelektrode (12) einkoppelt und mit dieser elektrisch verbunden ist.7. Fuel injection valve with ignition according to claim 5, characterized in that the coil via a capacitive coupling element (25) non-contact the ignition voltage to the first ignition electrode (12) couples and is electrically connected thereto.
8. Brennstoffeinspritzventil mit Zündung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Gehäuse (4) des Brennstoffeinspritzventils als zweite Zündelektrode dient.8. Fuel injection valve with ignition according to one of the preceding claims, characterized in that a housing (4) of the fuel injection valve serves as a second ignition electrode.
9. Brennstoffeinspritzventil mit Zündung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Brennstoffeinspritzventil ein doppelwandiges Gehäuse aufweist, wobei zwischen einer Innenwand (3) und einer Außenwand (16) der Brennstoff zu einem von dem Ventilkörper (8) verschließbaren Dichtsitz (11) zugeführt wird, und die Spule (22) zwischen Innenwand (3) und der Außenwand (16) angeordnet ist.9. Fuel injection valve with ignition according to one of the preceding claims, characterized in that the fuel injection valve has a double-walled housing, wherein between an inner wall (3) and an outer wall (16) of the fuel to one of the valve body (8) closable sealing seat (11) is supplied, and the coil (22) between the inner wall (3) and the outer wall (16) is arranged.
10. Brennstoffeinspritzventil mit Zündung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Brennstoffeinspritzventil ein doppelwandiges Gehäuse (4) aufweist, wobei zwischen einer Innenwand (3) und einer Außenwand (16) der Brennstoff zu einem von dem Ventilkörper (8) verschließbaren Dichtsitz (11) zugeführt wird, und die Spule (2) innerhalb der Innenwand (3) angeordnet ist. 10. Fuel injection valve with ignition according to one of the preceding claims, characterized in that the fuel injection valve has a double-walled housing (4), wherein between an inner wall (3) and an outer wall (16) of the fuel to one of the valve body (8) closable sealing seat (11) is supplied, and the coil (2) within the inner wall (3) is arranged.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610037040 DE102006037040B4 (en) | 2006-08-08 | 2006-08-08 | Fuel injector with ignition |
DE102006037040.6 | 2006-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008017576A1 true WO2008017576A1 (en) | 2008-02-14 |
Family
ID=38739476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/057431 WO2008017576A1 (en) | 2006-08-08 | 2007-07-18 | Fuel injection valve with ignition |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102006037040B4 (en) |
WO (1) | WO2008017576A1 (en) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011071607A3 (en) * | 2009-12-07 | 2011-10-27 | Mcalister Roy E | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8074625B2 (en) | 2008-01-07 | 2011-12-13 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
US8091528B2 (en) | 2010-12-06 | 2012-01-10 | Mcalister Technologies, Llc | Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture |
US8192852B2 (en) | 2008-01-07 | 2012-06-05 | Mcalister Technologies, Llc | Ceramic insulator and methods of use and manufacture thereof |
US8205805B2 (en) | 2010-02-13 | 2012-06-26 | Mcalister Technologies, Llc | Fuel injector assemblies having acoustical force modifiers and associated methods of use and manufacture |
US8225768B2 (en) | 2008-01-07 | 2012-07-24 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8297265B2 (en) | 2010-02-13 | 2012-10-30 | Mcalister Technologies, Llc | Methods and systems for adaptively cooling combustion chambers in engines |
US8297254B2 (en) | 2008-01-07 | 2012-10-30 | Mcalister Technologies, Llc | Multifuel storage, metering and ignition system |
US8365700B2 (en) | 2008-01-07 | 2013-02-05 | Mcalister Technologies, Llc | Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control |
US8387599B2 (en) | 2008-01-07 | 2013-03-05 | Mcalister Technologies, Llc | Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines |
US8413634B2 (en) | 2008-01-07 | 2013-04-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters with conductive cable assemblies |
JP2013513070A (en) * | 2009-12-07 | 2013-04-18 | マクアリスター テクノロジーズ エルエルシー | Integrated fuel injection and ignition system suitable for large engine applications and related uses and manufacturing methods |
US8555860B2 (en) | 2008-01-07 | 2013-10-15 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
US8561598B2 (en) | 2008-01-07 | 2013-10-22 | Mcalister Technologies, Llc | Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors |
JP2014500932A (en) * | 2010-12-06 | 2014-01-16 | マクアリスター テクノロジーズ エルエルシー | Integrated fuel injection and ignition device configured to inject a plurality of fuels and / or coolants and associated methods for use and manufacture |
US8683988B2 (en) | 2011-08-12 | 2014-04-01 | Mcalister Technologies, Llc | Systems and methods for improved engine cooling and energy generation |
US8709576B2 (en) | 2008-11-21 | 2014-04-29 | Airbus Operations (Sas) | Curved structural part made of composite material and a process for manufacturing such a part |
US8733331B2 (en) | 2008-01-07 | 2014-05-27 | Mcalister Technologies, Llc | Adaptive control system for fuel injectors and igniters |
US8820275B2 (en) | 2011-02-14 | 2014-09-02 | Mcalister Technologies, Llc | Torque multiplier engines |
US8851047B2 (en) | 2012-08-13 | 2014-10-07 | Mcallister Technologies, Llc | Injector-igniters with variable gap electrode |
US8851046B2 (en) | 2009-08-27 | 2014-10-07 | Mcalister Technologies, Llc | Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control |
US8919377B2 (en) | 2011-08-12 | 2014-12-30 | Mcalister Technologies, Llc | Acoustically actuated flow valve assembly including a plurality of reed valves |
US9091238B2 (en) | 2012-11-12 | 2015-07-28 | Advanced Green Technologies, Llc | Systems and methods for providing motion amplification and compensation by fluid displacement |
US9115325B2 (en) | 2012-11-12 | 2015-08-25 | Mcalister Technologies, Llc | Systems and methods for utilizing alcohol fuels |
US9175654B2 (en) | 2010-10-27 | 2015-11-03 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US9309846B2 (en) | 2012-11-12 | 2016-04-12 | Mcalister Technologies, Llc | Motion modifiers for fuel injection systems |
US9410474B2 (en) | 2010-12-06 | 2016-08-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture |
US20180363592A1 (en) * | 2015-12-01 | 2018-12-20 | Delphi Technologies Ip Limited | Gaseous fuel injectors |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2013006424A (en) * | 2010-12-06 | 2013-09-02 | Mcalister Technologies Llc | Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and asscociated methods of use and manufacture. |
JP6677877B2 (en) * | 2014-05-29 | 2020-04-08 | イマジニアリング株式会社 | Injector with built-in ignition device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19638025A1 (en) * | 1996-09-18 | 1998-03-19 | Bosch Gmbh Robert | Fuel injector with integrated spark plug |
DE10337630A1 (en) * | 2003-08-16 | 2005-03-17 | Bayerische Motoren Werke Ag | Fuel injection valve with integrated ignition plug has hollow valve body holding high voltage electrode that ends approximately flush with valve body, ignition transformer with primary and secondary windings in housing |
WO2005113975A1 (en) * | 2004-05-18 | 2005-12-01 | Robert Bosch Gmbh | Fuel injection valve with an integrated igniting device |
DE102004058925A1 (en) * | 2004-12-07 | 2006-06-08 | Siemens Ag | High-frequency plasma ignition device for internal combustion engines, in particular for directly injecting gasoline engines |
-
2006
- 2006-08-08 DE DE200610037040 patent/DE102006037040B4/en not_active Expired - Fee Related
-
2007
- 2007-07-18 WO PCT/EP2007/057431 patent/WO2008017576A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19638025A1 (en) * | 1996-09-18 | 1998-03-19 | Bosch Gmbh Robert | Fuel injector with integrated spark plug |
DE10337630A1 (en) * | 2003-08-16 | 2005-03-17 | Bayerische Motoren Werke Ag | Fuel injection valve with integrated ignition plug has hollow valve body holding high voltage electrode that ends approximately flush with valve body, ignition transformer with primary and secondary windings in housing |
WO2005113975A1 (en) * | 2004-05-18 | 2005-12-01 | Robert Bosch Gmbh | Fuel injection valve with an integrated igniting device |
DE102004058925A1 (en) * | 2004-12-07 | 2006-06-08 | Siemens Ag | High-frequency plasma ignition device for internal combustion engines, in particular for directly injecting gasoline engines |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8733331B2 (en) | 2008-01-07 | 2014-05-27 | Mcalister Technologies, Llc | Adaptive control system for fuel injectors and igniters |
US8365700B2 (en) | 2008-01-07 | 2013-02-05 | Mcalister Technologies, Llc | Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control |
US8997718B2 (en) | 2008-01-07 | 2015-04-07 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
US8192852B2 (en) | 2008-01-07 | 2012-06-05 | Mcalister Technologies, Llc | Ceramic insulator and methods of use and manufacture thereof |
US8555860B2 (en) | 2008-01-07 | 2013-10-15 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
US8225768B2 (en) | 2008-01-07 | 2012-07-24 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8074625B2 (en) | 2008-01-07 | 2011-12-13 | Mcalister Technologies, Llc | Fuel injector actuator assemblies and associated methods of use and manufacture |
US8561598B2 (en) | 2008-01-07 | 2013-10-22 | Mcalister Technologies, Llc | Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors |
US8413634B2 (en) | 2008-01-07 | 2013-04-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters with conductive cable assemblies |
US8387599B2 (en) | 2008-01-07 | 2013-03-05 | Mcalister Technologies, Llc | Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines |
US8297254B2 (en) | 2008-01-07 | 2012-10-30 | Mcalister Technologies, Llc | Multifuel storage, metering and ignition system |
US8635985B2 (en) | 2008-01-07 | 2014-01-28 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
US8709576B2 (en) | 2008-11-21 | 2014-04-29 | Airbus Operations (Sas) | Curved structural part made of composite material and a process for manufacturing such a part |
US8851046B2 (en) | 2009-08-27 | 2014-10-07 | Mcalister Technologies, Llc | Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control |
KR101364416B1 (en) * | 2009-12-07 | 2014-02-17 | 맥알리스터 테크놀로지즈 엘엘씨 | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
JP2013513070A (en) * | 2009-12-07 | 2013-04-18 | マクアリスター テクノロジーズ エルエルシー | Integrated fuel injection and ignition system suitable for large engine applications and related uses and manufacturing methods |
AU2010328632B2 (en) * | 2009-12-07 | 2014-12-18 | Mcalister Technologies, Llc | An injector for introducing fuel into a combustion chamber and for introducing and igniting fuel at an interface with a combustion chamber |
JP2013092153A (en) * | 2009-12-07 | 2013-05-16 | Mcalister Technologies Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
WO2011071607A3 (en) * | 2009-12-07 | 2011-10-27 | Mcalister Roy E | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8905011B2 (en) | 2010-02-13 | 2014-12-09 | Mcalister Technologies, Llc | Methods and systems for adaptively cooling combustion chambers in engines |
US8205805B2 (en) | 2010-02-13 | 2012-06-26 | Mcalister Technologies, Llc | Fuel injector assemblies having acoustical force modifiers and associated methods of use and manufacture |
US8297265B2 (en) | 2010-02-13 | 2012-10-30 | Mcalister Technologies, Llc | Methods and systems for adaptively cooling combustion chambers in engines |
US9175654B2 (en) | 2010-10-27 | 2015-11-03 | Mcalister Technologies, Llc | Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture |
US8091528B2 (en) | 2010-12-06 | 2012-01-10 | Mcalister Technologies, Llc | Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture |
US8561591B2 (en) | 2010-12-06 | 2013-10-22 | Mcalister Technologies, Llc | Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture |
JP2014500932A (en) * | 2010-12-06 | 2014-01-16 | マクアリスター テクノロジーズ エルエルシー | Integrated fuel injection and ignition device configured to inject a plurality of fuels and / or coolants and associated methods for use and manufacture |
US9410474B2 (en) | 2010-12-06 | 2016-08-09 | Mcalister Technologies, Llc | Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture |
US8820275B2 (en) | 2011-02-14 | 2014-09-02 | Mcalister Technologies, Llc | Torque multiplier engines |
US8919377B2 (en) | 2011-08-12 | 2014-12-30 | Mcalister Technologies, Llc | Acoustically actuated flow valve assembly including a plurality of reed valves |
US8683988B2 (en) | 2011-08-12 | 2014-04-01 | Mcalister Technologies, Llc | Systems and methods for improved engine cooling and energy generation |
US8851047B2 (en) | 2012-08-13 | 2014-10-07 | Mcallister Technologies, Llc | Injector-igniters with variable gap electrode |
US9091238B2 (en) | 2012-11-12 | 2015-07-28 | Advanced Green Technologies, Llc | Systems and methods for providing motion amplification and compensation by fluid displacement |
US9115325B2 (en) | 2012-11-12 | 2015-08-25 | Mcalister Technologies, Llc | Systems and methods for utilizing alcohol fuels |
US9309846B2 (en) | 2012-11-12 | 2016-04-12 | Mcalister Technologies, Llc | Motion modifiers for fuel injection systems |
US20180363592A1 (en) * | 2015-12-01 | 2018-12-20 | Delphi Technologies Ip Limited | Gaseous fuel injectors |
US10683829B2 (en) * | 2015-12-01 | 2020-06-16 | Delphi Technologies Ip Limited | Gaseous fuel injectors |
Also Published As
Publication number | Publication date |
---|---|
DE102006037040B4 (en) | 2008-07-24 |
DE102006037040A1 (en) | 2008-02-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102006037040B4 (en) | Fuel injector with ignition | |
EP1537329B1 (en) | Device for igniting an air-fuel-mixture in an internal combustion engine by means of a high frequency electric energy source | |
DE102013207909B4 (en) | Ignition coil device for high-frequency discharge | |
DE2340865A1 (en) | IGNITION DEVICE FOR COMBUSTION MACHINERY | |
EP3465849B1 (en) | Spark plug for a high-frequency ignition system | |
DE102013215663B4 (en) | Ignition apparatus | |
DE102010045171A1 (en) | An igniter for igniting a fuel-air mixture in a combustion chamber, in particular in an internal combustion engine, by generating a corona discharge | |
DE102020100827B4 (en) | Pre-chamber system, internal combustion engine with pre-chamber system and method for igniting a fuel-air mixture | |
EP2067149A1 (en) | Device for storing energy and transforming energy | |
DE102013202016A1 (en) | IGNITION SYSTEM | |
DE10239411B4 (en) | Device for igniting an air-fuel mixture in an internal combustion engine | |
EP1448890B1 (en) | High-frequency ignition for an internal combustion engine | |
DE60310288T2 (en) | Fuel injection and ignition unit for diesel engine and method | |
EP1979608B1 (en) | Arrangement for detecting a measuring signal on a high voltage side, in particular a signal corresponding to ion current between sparking plug electrodes of an internal combustion engine | |
DE10239409B4 (en) | Device for igniting an air-fuel mixture in an internal combustion engine | |
DE10239414B4 (en) | Device for igniting an air-fuel mixture in an internal combustion engine | |
DE102012210391A1 (en) | detonator | |
EP1929490B1 (en) | Rod ignition transformer for supplying an ignition element, especially a spark plug of an internal combustion engine, with high voltage | |
DE10243271A1 (en) | Device for igniting air-fuel mixture in internal combustion engine, has circuit for producing and/or amplifying HF energy with feedback network for power matching of circuit to variable load impedance | |
DE10360193B4 (en) | Device for igniting an air-fuel mixture in an internal combustion engine | |
WO2008017600A1 (en) | High frequency ignition device | |
DE102008035241A1 (en) | Internal combustion engine for motor vehicle, has ignition devices positioned relative to each other such that plasma volume is formed during producing plasma arc by one of ignition devices and producing electric field by another device | |
DE10006561C1 (en) | Device for igniting or heating a gas or mixture | |
DE10338353A1 (en) | Switching arrangement for combined spark plug/ injection valve unit e.g. for combustion engine, has discharge current circuit of capacitive actuator/control connected to primary winding of ignition transformer | |
DE10337630A1 (en) | Fuel injection valve with integrated ignition plug has hollow valve body holding high voltage electrode that ends approximately flush with valve body, ignition transformer with primary and secondary windings in housing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07787689 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07787689 Country of ref document: EP Kind code of ref document: A1 |