EP1431571B1 - Fuel injection valve with integrated spark plug - Google Patents

Fuel injection valve with integrated spark plug Download PDF

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Publication number
EP1431571B1
EP1431571B1 EP04000412A EP04000412A EP1431571B1 EP 1431571 B1 EP1431571 B1 EP 1431571B1 EP 04000412 A EP04000412 A EP 04000412A EP 04000412 A EP04000412 A EP 04000412A EP 1431571 B1 EP1431571 B1 EP 1431571B1
Authority
EP
European Patent Office
Prior art keywords
valve
spark plug
fuel injection
fuel
ignition electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04000412A
Other languages
German (de)
French (fr)
Other versions
EP1431571A3 (en
EP1431571A2 (en
Inventor
Franz Rieger
Gernot Wuerfel
Stefan Kampmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19828849 priority Critical
Priority to DE1998128849 priority patent/DE19828849A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP99924738A priority patent/EP1032762B1/en
Publication of EP1431571A2 publication Critical patent/EP1431571A2/en
Publication of EP1431571A3 publication Critical patent/EP1431571A3/en
Application granted granted Critical
Publication of EP1431571B1 publication Critical patent/EP1431571B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00Fuel-injectors combined or associated with other devices
    • F02M57/06Fuel-injectors combined or associated with other devices the devices being sparking plugs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/162Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163Means being injection-valves with helically or spirally shaped grooves

Description

  • The invention relates to a fuel injection valve with integrated spark plug according to the preamble of the main claim.
  • It is already known from EP 0 661 446 A1 a fuel injection valve with integrated spark plug according to the preamble of the main claim. The fuel injector with integrated spark plug is used for direct injection of fuel into the combustion chamber of an internal combustion engine and for igniting the fuel injected into the combustion chamber. The compact integration of a fuel injection valve with a spark plug installation space can be saved on the cylinder head of the engine. The known fuel injection valve with integrated spark plug has a valve body which, together with an actuatable by means of a valve needle valve closing body forms a sealing seat, which is followed by an opening on one of the combustion chamber end face of the valve body ejection opening. The valve body is high-voltage resistant isolated by a ceramic insulating body of a screwed into the cylinder head of the internal combustion engine housing body. On the housing body is a ground electrode to form a counter potential to the high voltage applied valve body. When the valve body is acted upon with a sufficient high voltage, a sparkover occurs between the valve body and the ground electrode connected to the housing body.
  • In the known fuel injection valve with integrated spark plug is disadvantageous, however, that the position of the flashover with respect to the ejected from the ejection port fuel jet is not defined, since the flashover at an almost arbitrary position in the lateral region of a Projection of the valve body can be done. A reliable ignition of the so-called jet root of the ejected from the spray discharge fuel jet is not possible in this known construction with the necessary security. However, a safe and timely exactly defined ignition of the fuel jet is absolutely necessary for reducing pollutants. Furthermore, at the outlet opening of the fuel jet, a steadily progressing fouling or coking can occur, which affects the ejected jet shape.
  • Advantages of the invention
  • The fuel injection valve with integrated spark plug according to the invention with the characterizing features of the main claim has the advantage that the position of the flashover with respect to the position of the injection opening is reproducible and clearly defined. Thus, a safe ignition of the sprayed fuel jet is guaranteed. The position of the flashover and thus the ignition point can be placed in the area of the sprayed fuel jet with the least cyclic beam fluctuations. The timing of the ignition of the fuel jet therefore has extremely small variations from injection cycle to injection cycle. The positioning of the flashover or the ignition point in the vicinity of the injection orifice coagulation and coking of the injection orifice is counteracted and thus counteracted by a consequent change in the beam geometry.
  • The edge for determining the position of the flashover can be provided either on the end face of the valve body or on the ignition electrodes. The edge may be formed on the end face of the valve body by an elevation or depression. It is advantageous if the valve body has at the elevation a rounded edge region in order to direct the air flow targeted to the ignition point. If the firing point defining edge is formed on the end face of the valve body, as ignition electrode can be a simple find the end face of the valve body spanning wire use, which is a particularly cost-effective design.
  • The measures listed in the dependent claims advantageous refinements and improvements of the main claim fuel injector with integrated spark plug are possible.
  • drawing
  • An embodiment of the invention is shown in simplified form in FIG. 3 and explained in more detail in the following description. Show it:
  • Fig. 3
    a section through the discharge-side end portion of a Brennstoffeinspritzventiis invention with integrated spark plug according to an embodiment, and also
    Fig. 1
    a section through a fuel injection valve with integrated spark plug according to another example.
    Fig. 2
    8 is an enlarged view of the discharge-side end portion of the fuel injection valve with integrated spark plug shown in FIG. 1;
    Fig. 4
    a section through the discharge-side end portion of a fuel injection valve with integrated spark plug according to another example.
    Fig. 5
    a section through the discharge-side end portion of a fuel injection valve with integrated spark plug according to another example,
    Fig. 6
    a section through the discharge-side end portion of a fuel injection valve with integrated spark plug according to another example, and
    Figure 7
    a section through the discharge-side end portion of a fuel injection valve with integrated spark plug according to another example, wherein in the
  • Figs. 1 and 2 and Figs. 4 to 7 illustrate the understanding of the invention but are not exemplary embodiments of the invention.
  • Description of the embodiments
  • In Fig. 1, a fuel injection valve with integrated spark plug for directly injecting fuel into a combustion chamber of a mixture-compressed spark-ignited internal combustion engine and for igniting the fuel injected into the combustion chamber is shown in accordance with one to facilitate the understanding of the invention.
  • The generally provided with the reference numeral 1 fuel injector with integrated spark plug has a first housing body 2, which is screwed by means of a thread 3 in a receiving bore of a cylinder head, not shown in Fig. 1, and a second housing body 4 and a third housing body 5. The metallic housing formed by the housing body 3, 4, 5 surrounds an insulating body 6, which in turn at least partially radially outside a valve body 7, a swirl insert 14 and extending inside the swirl insert 14 via the inlet end 8 of the valve body 7 surrounds. With the valve needle 9 is a discharge side conical valve closing body 10 is connected, which forms a sealing seat together with an inside conical valve seat surface at the discharge-side end 11 of the valve body 7. In the example shown, the valve needle 9 and the valve closing body 10 are integrally formed. When lifting the valve-closing body 10 from the valve seat surface of the valve body 7, the valve-closing body 10 releases an outlet opening 12 formed in the valve body 7, so that a conical fuel jet 13 is hosed down. For better circumferential distribution of the fuel in the example shown in the swirl insert 14 a swirl groove 14a is provided, wherein a plurality of swirl grooves 14a may be provided.
  • First ignition electrodes 70a for generating a spark are provided on the first housing body 2. The ignition electrodes 70a lead 'while ground potential, while the valve body 7 can be acted upon by a high voltage potential. The lengths of the ignition electrodes 70a are the beam angle and the beam shape of the Fuel jet 13 adapt. In this case, the ignition electrodes 70a can either dip into the fuel jet 13, or the fuel jet 13 can be guided past the ignition electrodes 70a at a small distance, without the ignition electrodes 70a being wetted by the fuel. It is also conceivable to immerse the ignition electrodes 70a in gaps of individual beams generated by the outlet opening 12 or a plurality of spray-discharge openings.
  • The valve body 7 is preferably formed in two parts from a first part body 7a and a second part body 7b, which are welded together at a weld 17.
  • The valve needle 9 is divided in the example in a first metallic, discharge-side guide portion 9a, a second metallic inlet-side guide portion 9b and a sleeve-shaped in the example, ceramic insulation portion 9c. The first guide portion 9a is guided in the swirl insert 14. In the exemplary embodiment, the guide is provided by the cylindrical lateral surface 18 of the valve closing body 10 formed integrally with the first guide section 9a. A second guide of the valve needle 9 takes place by means of the second guide section 9b in the insulation body 6. For this purpose, the lateral surface 19 of the second guide section 9b acts with a bore 20 in the insulation body 6 together. The guide portions 9a and 9b serving as the guide are formed as metallic components and can be manufactured with the manufacturing accuracy required for the guide. Due to the low surface roughness of the metallic components results in only a low coefficient of friction on the guides. The insulating section 9c, however, can be made as a ceramic part. Since the insulating section 9c does not serve to guide the valve needle 9, only small demands are placed on the dimensional accuracy and the surface roughness. A revision of the ceramic part is therefore not required.
  • The guide sections 9a and 9b are not only positively connected to the insulation section 9c but also positively connected. In the illustrated example, the guide portions 9a and 9b each have a pin 21 and 22 respectively, which is inserted into a bore 23 formed as a recess of the insulating portion 9c. Preferably, the connection between the pins 21 and 22 of the guide portions 9a and 9b is made by a frictional engagement, by gluing or shrinking.
  • The insulation section 9c is preferably sleeve-shaped. The saved over a solid body material results in a weight saving, which leads to shorter switching times of the fuel injection valve 1.
  • The second guide portion 9b is connected to an armature 24, which cooperates with a solenoid coil 25 for the electromagnetic actuation of the valve closing body 10. A sleeve-shaped core 28 at least partially penetrates the magnet coil 25 and is separated from the armature 24 by a gap, not visible from the figure, in the closed position of the fuel injection valve 1 spaced. The magnetic flux circuit is closed by the ferromagnetic components 29 and 30. The fuel flows through a fuel inlet port 31, which is connectable via a thread 32 with a fuel distributor, not shown, in the fuel injection valve with integrated spark plug 1. The fuel first flows through a fuel filter 33 and then flows into a longitudinal bore 34 of the core 28. In the longitudinal bore 34 is provided with a hollow bore 35 adjusting sleeve 36 which is screwed into the longitudinal bore 34 of the core 28. The adjusting sleeve 36 serves to adjust the bias of a return spring 37, which acts on the armature 24 in the closing direction. To secure the setting of the adjusting sleeve 36 is a counter sleeve 38th
  • The fuel continues to flow through a longitudinal bore 39 in the second guide portion 9b of the valve needle 9 and enters at an axial recess 40 in a cavity 41 of the insulating body 6 a. The fuel flows from there into a longitudinal bore 42 of the valve body 7, in which also the valve needle 9 extends, and finally reaches the already described twist groove 14a on the outer circumference of the swirl insert 14th
  • As already described, the ignition electrodes 70a connected to the housing body 2 carry ground potential, while the valve body 7 can be subjected to a high-voltage potential for generating ignition sparks. To supply the high voltage is a high voltage cable 50, which is inserted through a lateral, pocket-like recess 51 in the insulation body 6. The stripped end 52 of the high-voltage cable 50 is soldered or welded to a soldering or welding point 53 with a contact clip 54. The contact clip 54 grips the valve body 7 and establishes a secure electrically conductive contact between the stripped end 52 of the high voltage cable 50 and the valve body 7. For better accessibility of the soldering or welding point 53, the insulating body 6 has a radial bore 55, via which a soldering or Welding tool to the soldering or welding point 53 can be performed. After the soldering or welding connection, the pocket-like recess 51 is filled with an electrically insulating potting compound 56. In this case, an integrated in the high voltage cable 50 Abbrandwiderstand 57 can be poured into the potting compound 56 with. For improved insulation of the soldering or welding point 53, a high-voltage resistant film 58 can be inserted into the pocket-like recess 51 of the insulating body 6 and also encapsulated with the sealing compound 56. As potting compound 56 is suitable for. Silicone.
  • The insulating body 6 and the valve body 7 may be screwed together at a thread 60. Furthermore, the insulating body 6 may be screwed to the housing body 2 at a further thread 61 with each other. Preferably, threads 60 and 61 are secured with a suitable adhesive. The insulating body 6 can be produced inexpensively as a sprue ceramic part. The valve body 7 and the insulating body 6 can be screwed and glued with a mounting mandrel to compensate for misalignment in the leadership of the valve needle 9.
  • The spatially close arrangement of Abbrandwidersrands 57 to the ignition electrodes 70a reduces the burnup of the ignition electrodes 7a and allows despite an increased electrical capacity a full metal sheath of the fuel injection valve with integrated spark plug 1 through the metallic housing body 2, 4 and 5.
  • 2 shows an enlarged representation of the discharge-side end region of the fuel injection valve with integrated spark plug 1 shown in FIG. 1. In addition to the valve closing body 10 and the outlet opening 12 designed as a cylinder bore, the ignition electrodes 70a can be seen particularly well in this illustration. The fuel injection valve with integrated spark plug 1 is screwed in the illustration of FIG. 2 in a cylinder head 71 of an internal combustion engine, so that the ignition electrodes 70a protrude into a combustion chamber 72 of the internal combustion engine.
  • For attachment in the example of Figs. 1 and 2 pin-like, z. The projections 78 of the housing body 2 are arranged circumferentially offset from one another on the housing body 2, wherein between the individual projections 78 relatively large gaps are formed to an unimpeded influx of combustion air to the outlet of the outlet opening 12 to allow the combustion chamber 72 facing end face 73 of the valve body 7. At each of the holder serving projection 78 of the housing body. 2 is in each case an ignition electrode 70 a arranged and at the associated projection 78 z. B. attached by welding or screwing. The ignition electrodes 70a are each inclined relative to the plane of the end face 73 of the valve body 7 by a predetermined inclination angle α in the direction of the end face 73 of the valve body 7. In this case, the end face 73 of the valve body 7 is in each case opposite an edge 74 of the pin-shaped ignition electrodes 70a. The position of the edges 74 defines the location of the smallest distance between the ignition electrodes 70a and the end face 73 of the valve body 7 and thus determines the firing point. Due to the edge-shaped formation results at this point an increased electric field strength, which causes the plasma discharge of the spark. The firing point defined by the edges 74 is therefore reproducible from injection cycle to injection cycle. The most favorable position of the ignition point can be optimized by experiments and is in the range of the so-called beam root of ejected from the outlet opening 12 fuel jet 13. By changing the length and the inclination angle α of the ignition electrodes 70a, the position of the edges 74 at the opening angle β of the Outlet opening 12 already sprayed fuel jet 13 are adapted. The distance of the edges 74 of the Zündelelctroden 70a of the end face 73 of the valve body 7 can be adjusted by bending a bend 75 of the projections 78 manufacturing technology exactly.
  • Fig. 3 shows a section through the discharge-side end portion of a fuel injection valve with integrated spark plug 1 according to an embodiment of the invention. Already described elements are provided with matching reference numerals.
  • The difference to the example described with reference to FIGS. 1 and 2 is essentially that the edge for determining the position of the flashover and thus the ignition point is not formed on the ignition electrode 70, but on the end face 73 of the valve body 7. In this case, the end face 73 of the valve body 7 on an increase 80 with a circumferential edge 81. When the valve body 7 is acted upon by a high voltage, an increased electric field strength, which triggers the plasma discharge of the ignition spark, is produced at the edge 81. The position of the ignition point can be exactly determined with respect to the position of the outlet opening 12 by suitable dimensioning of the diameter of the elevation 80. The ground potential leading ignition electrode 70 b can be formed in this embodiment by a simple wire which is clamped between a first projection 78 a of the housing body 2 and a second projection 78 b of the housing body 2 and can be fixed by welds 82. The wire-shaped ignition electrode 70b results in a configuration with particularly low Production expense. Instead of an increase 80 may be provided on the end face 73 of the valve body 7, a recess at whose boundary also an edge for selectively increasing the electric field strength is formed.
  • Fig. 4 shows a section through the discharge-side end portion of an example of a fuel injection valve with integrated spark plug 1. Again, already described elements are provided with matching reference numerals.
  • In contrast to the examples already described, in the exemplary embodiment illustrated in FIG. 4, the ignition electrode 70c has an annular shape and has an opening 90 for the fuel jet 13 sprayed off from the outlet opening 12. The opening 90 of the annular ignition electrode 70c is preferably formed with a conical inner surface and expands in the spray direction 91 of the fuel jet 13. The opening angle β 'of the opening 90 of the annular ignition electrode 70c is preferably adapted to the opening angle β of the fuel jet 13. Preferably, the opening angle β 'of the opening 90 coincides with the opening angle β of the fuel jet 13. At the inner, the end face 73 of the valve body 7 opposite end, the opening 90 has an acute-angled edge 92, which defines the ignition point in this example. The annular ignition electrode 70c is attached to the protrusions 78 of the case body 2 via connecting pins 93. The projections 78 are distributed radially circumferentially on the housing body 2. For example, 3 or 4 such projections 78 are provided. Each projection 78 is associated with a connecting pin 93. The projections 78 and the connecting pins 93 are made relatively narrow, so that between the projections 78 and the connecting pins 93 remain relatively large gaps through which the combustion air can flow unhindered to the mouth of the outlet opening 12 and to the specified by the peripheral edge 92 Zündstelle , An unrestricted influx of combustion air is essential for a safe ignition of the fuel jet 13 and a low sooting and coking at the mouth of the outlet opening 12.
  • Fig. 5 shows a section through the discharge-side end of a fuel injection valve with integrated spark plug 1 according to another example. Already described elements are also provided here with matching reference numerals. The difference from the example already described with reference to FIG. 4 consists essentially in that the annular ignition electrode 70c has a chamfered portion 96, to which the connecting pins 93 are aligned. As a result, edges at the transition between the pins 93rd and avoid the annular ignition electrode 70c, so that no increased field strength occurs at these locations, which could lead to a parasitic ignition point.
  • Fig. 6 shows a section through the discharge-side end of a fuel injection valve with integrated spark plug 1 according to another example. Again, elements already described are provided with matching reference numerals. The example shown in FIG. 6 represents a combination of the examples shown in FIGS. 3 and 4. In this case, a ring electrode 70 c is provided whose opening 90 has an edge 92 at the end opposite the end face 73 of the valve body 7. The end face 73 of the valve body 7 has an elevation 80 with a circumferential edge 81. The peripheral edge 81 of the elevation 80 is located near the circumferential edge 92 of the annular ignition electrode 70c. The ignition point is located between the two circumferential edges 92 and 81, since there the valve body 7 and the ignition electrode 70c on the one hand have the smallest distance from each other and on the other hand at this point due to the edges 81 and 92, a particularly high electric field strength occurs.
  • Fig. 7 shows a section through the discharge-side end portion of a fuel injection valve with integrated spark plug 1 according to another example. Again, elements already described are provided with matching reference numerals. The example shown in FIG. 7 largely corresponds to the example already described with reference to FIG. 6 with the difference that the flank region 97 of the elevation 80 of the end face 73 of the valve body 7 is concavely rounded. As a result, the laterally flowing combustion air is guided to the fuel jet 13 and the firing point defined by the peripheral edges 81 and 92. It therefore results in a particularly good inlet geometry for the combustion air, so that a reliable ignition of the fuel jet 13 and a low-emission combustion are ensured. A fouling and coking of the outlet of the outlet opening 12 is counteracted.
  • Compared with known long and thin finger electrodes, the shape and design of the ignition electrodes 70a-70c of the examples described above avoids unintentional glow ignition. Furthermore, the inventively designed ignition electrodes 70b have an increased mechanical stability and a prolonged life. Due to the geometry of the ignition electrodes 70a to 70c and of the valve body 7, a constant fuel-air mixture with lambda between 0.6 and 1.0 is achieved at the ignition point. The ignition point is in the range of the lowest cyclical fluctuations of the Fuel jet. Due to the sparks possibly deposited on the end face 73 of the valve body 7 impurities are burned according to a self-cleaning effect.

Claims (3)

  1. Fuel injection valve having an integrated spark plug (1), for the direct injection of fuel into a combustion chamber (72) of an internal combustion engine and for igniting the fuel which is injected into the combustion chamber (72), having
    a valve body (7) which forms a sealing seat together with a valve closing body (10), at least one outlet opening (12) which opens on an end face (73) of the valve body (7) which faces the combustion chamber (72) adjoining the said sealing seat, and
    a housing body (2) which is insulated from the valve body (7), at least one ignition electrode (70a) being provided on the housing body (2), in order to produce a sparkover between the valve body (7) and the ignition electrode (70a),
    the ignition electrode (70a) and the valve body (7) being shaped in such a way that the sparkover takes place between that end face (73) of the valve body (7) which faces the combustion chamber (72) and the ignition electrode (70a), and
    that end face (73) of the valve body (7) which faces the combustion chamber (72) and/or the ignition electrode (70a) having an edge (81) in the vicinity of the outlet opening (12), in order to define the position of the sparkover reproducibly on the end face (73) of the valve body (7) with regard to the position of the outlet opening (12),
    characterized in that the end face (73) of the valve body (7) has, at a predefined spacing from the outlet opening (12), a raised part (80) or depression with an edge (81) which delimits the raised part (80) or depression, and at least two holding devices (78a, 78b) which project beyond the end face (73) of the valve body (7) are provided on the housing body (2), between which at least one wire-shaped ignition electrode (70b) extends.
  2. Fuel injection valve having an integrated spark plug according to Claim 1, characterized in that the end face (73) of the valve body (7) has a raised part (80) with a rounded flank region (97).
  3. Fuel injection valve having an integrated spark plug according to Claim 1 or 2, characterized in that the wire-shaped ignition electrode (70b) can be fastened to the at least two holding devices (78a, 78b) by means of welded seams (82).
EP04000412A 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug Expired - Fee Related EP1431571B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19828849 1998-06-27
DE1998128849 DE19828849A1 (en) 1998-06-27 1998-06-27 Fuel injection valve with integrated spark plug for direct injection of fuel into combustion chamber of IC engine and its ignition
EP99924738A EP1032762B1 (en) 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP99924738A Division EP1032762B1 (en) 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug
EP99924738A Division-Into EP1032762B1 (en) 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug

Publications (3)

Publication Number Publication Date
EP1431571A2 EP1431571A2 (en) 2004-06-23
EP1431571A3 EP1431571A3 (en) 2004-08-04
EP1431571B1 true EP1431571B1 (en) 2006-03-29

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EP99924738A Expired - Lifetime EP1032762B1 (en) 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug
EP04000412A Expired - Fee Related EP1431571B1 (en) 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug

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EP99924738A Expired - Lifetime EP1032762B1 (en) 1998-06-27 1999-04-01 Fuel injection valve with integrated spark plug

Country Status (6)

Country Link
US (2) US6536405B1 (en)
EP (2) EP1032762B1 (en)
JP (1) JP2002519571A (en)
KR (1) KR20010022302A (en)
DE (2) DE19828849A1 (en)
WO (1) WO2000000738A1 (en)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020054332A (en) * 1999-10-18 2002-07-06 톰 바스코비치 Direct injection of fuels in internal combustion engines
AUPQ588500A0 (en) 2000-02-28 2000-03-23 Orbital Engine Company (Australia) Proprietary Limited Combined fuel injection and ignition means
EP1295022B1 (en) * 2000-06-08 2007-04-04 Knite, Inc. Combustion enhancement system and method
DE10038293A1 (en) * 2000-08-05 2002-02-14 Bosch Gmbh Robert Fuel injector
DE10150167B4 (en) * 2001-10-11 2016-01-07 Volkswagen Ag Internal combustion engine with improved high-frequency ignition
DE10214167A1 (en) 2002-03-28 2003-10-09 Bosch Gmbh Robert The fuel injector-spark plug combination
JP4082347B2 (en) * 2003-12-18 2008-04-30 トヨタ自動車株式会社 Plasma injector and exhaust gas purification system
DE102004024535A1 (en) * 2004-05-18 2005-12-15 Robert Bosch Gmbh Fuel injection valve with integrated ignition device
FR2870569B1 (en) * 2004-05-19 2006-07-21 Renault Sas Fuel injector device for internal combustion engine with command ignition
US6955154B1 (en) * 2004-08-26 2005-10-18 Denis Douglas Fuel injector spark plug
US7314033B2 (en) 2004-11-18 2008-01-01 Massachusetts Institute Of Technology Fuel management system for variable ethanol octane enhancement of gasoline engines
US8353269B2 (en) * 2004-11-18 2013-01-15 Massachusetts Institute Of Technology Spark ignition engine that uses intake port injection of alcohol to extend knock limits
US20080060627A1 (en) * 2004-11-18 2008-03-13 Massachusetts Institute Of Technology Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US8082735B2 (en) * 2005-04-06 2011-12-27 Massachusetts Institute Of Technology Optimized fuel management system for direct injection ethanol enhancement of gasoline engines
US7640913B2 (en) * 2006-03-08 2010-01-05 Ethanol Boosting Systems, Llc Single nozzle injection of gasoline and anti-knock fuel
US7726265B2 (en) * 2006-03-10 2010-06-01 Ethanol Boosting Systems, Llc Fuel tank system for direct ethanol injection octane boosted gasoline engine
CA2582529A1 (en) * 2006-03-23 2007-09-23 Steven Keays Internal combustion water injection engine
DE102006029210A1 (en) * 2006-06-26 2007-12-27 Ford Global Technologies, LLC, Dearborn Fuel injector for e.g. diesel engine, has electrode pairs arranged such that spark gap possesses conical fuel injection beam that is left from nozzle, where spark gap is formed during extraneous ignition
US7650873B2 (en) 2006-07-05 2010-01-26 Advanced Propulsion Technologies, Inc. Spark ignition and fuel injector system for an internal combustion engine
US20100063712A1 (en) * 2006-07-24 2010-03-11 Leslie Bromberg Single nozzle direct injection system for rapidly variable gasoline/anti-knock agent mixtures
JP4818873B2 (en) * 2006-10-25 2011-11-16 東洋電装株式会社 Spark plug integrated multifunction ignition device
JP4414457B2 (en) * 2007-12-19 2010-02-10 日本特殊陶業株式会社 Spark plug
EP2470775B1 (en) 2009-08-27 2015-04-29 McAlister Technologies, LLC Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control
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
US8074625B2 (en) 2008-01-07 2011-12-13 Mcalister Technologies, Llc Fuel injector actuator assemblies and associated methods of use and manufacture
US7628137B1 (en) 2008-01-07 2009-12-08 Mcalister Roy E Multifuel storage, metering and ignition system
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
EP2470773B1 (en) * 2009-08-27 2015-04-29 McAlister Technologies, LLC Fuel injection valve with sensor to detect combustion
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
EP2510213A4 (en) * 2009-12-07 2014-07-23 Mcalister Technologies Llc Adaptive control system for fuel injectors and igniters
US8528519B2 (en) 2010-10-27 2013-09-10 Mcalister Technologies, Llc Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture
US8522758B2 (en) 2008-09-12 2013-09-03 Ethanol Boosting Systems, Llc Minimizing alcohol use in high efficiency alcohol boosted gasoline engines
US8069836B2 (en) * 2009-03-11 2011-12-06 Point-Man Aeronautics, Llc Fuel injection stream parallel opposed multiple electrode spark gap for fuel injector
WO2011025512A1 (en) * 2009-08-27 2011-03-03 Mcallister Technologies, Llc Integrated fuel injectors and igniters and associated methods of use and manufacture
KR101153801B1 (en) * 2009-12-31 2012-06-13 에이치케이엠엔에스(주) Plasma buner including radial shape fuel pipe
AU2011216246B2 (en) 2010-02-13 2013-01-17 Mcalister Technologies, Llc Fuel injector assemblies having acoustical force modifiers and associated methods of use and manufacture
CN102844540A (en) 2010-02-13 2012-12-26 麦卡利斯特技术有限责任公司 Methods and systems for adaptively cooling combustion chambers in engines
DE102010024567B4 (en) * 2010-06-22 2012-05-31 Continental Automotive Gmbh Ignition device for an internal combustion engine and cylinder head gasket with an electrode of an ignition device embedded therein
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
US20110297753A1 (en) 2010-12-06 2011-12-08 Mcalister Roy E 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
US8683988B2 (en) 2011-08-12 2014-04-01 Mcalister Technologies, Llc Systems and methods for improved engine cooling and energy generation
US8919377B2 (en) 2011-08-12 2014-12-30 Mcalister Technologies, Llc Acoustically actuated flow valve assembly including a plurality of reed valves
US8851047B2 (en) * 2012-08-13 2014-10-07 Mcallister Technologies, Llc Injector-igniters with variable gap electrode
US20140090622A1 (en) * 2012-09-28 2014-04-03 Harold Cranmer Seelig Internal combustion engine
US9200561B2 (en) 2012-11-12 2015-12-01 Mcalister Technologies, Llc Chemical fuel conditioning and activation
US8800527B2 (en) 2012-11-19 2014-08-12 Mcalister Technologies, Llc Method and apparatus for providing adaptive swirl injection and ignition
US9021781B2 (en) 2013-01-04 2015-05-05 General Electric Company Fuel injector having an ignitor for igniting a combustor of a gas turbine
US9562500B2 (en) 2013-03-15 2017-02-07 Mcalister Technologies, Llc Injector-igniter with fuel characterization
US8820293B1 (en) 2013-03-15 2014-09-02 Mcalister Technologies, Llc Injector-igniter with thermochemical regeneration
US20140261272A1 (en) * 2013-03-15 2014-09-18 Alfred Anthony Black I.C.E Igniter with Integral Fuel Injector in Direct Fuel Injection Mode.
GB201521184D0 (en) * 2015-12-01 2016-01-13 Delphi Internat Operations Luxembourg S À R L Gaseous fuel injectors
KR101930077B1 (en) * 2016-11-28 2018-12-17 한국기계연구원 A device of plasma assisted spray combustion and Gas burning Apparatus using the Same
US10690107B1 (en) 2019-02-18 2020-06-23 Caterpillar Inc. Composite spark and liquid pilot igniter for dual fuel engine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1310970A (en) * 1919-07-22 stsottd
FR640927A (en) * 1927-04-28 1928-07-24 Method and apparatus for the use of combustible heavy liquid in engines and their application for processing of petrol engines
US2795214A (en) 1955-05-20 1957-06-11 Ii Thurston W Shook Combined fuel injection and ignition system for internal combustion engines
DE1178644B (en) * 1961-03-17 1964-09-24 Bosch Gmbh Robert With injector Zuendkerze united for internal combustion engines, in particular gas turbines
US3173409A (en) * 1961-10-23 1965-03-16 Glenn B Warren Internal combustion engine operating on stratified combustion principle and combined fuel injection and igniting device for use therewith
US4095580A (en) * 1976-10-22 1978-06-20 The United States Of America As Represented By The United States Department Of Energy Pulse-actuated fuel-injection spark plug
US4736718A (en) * 1987-03-19 1988-04-12 Linder Henry C Combustion control system for internal combustion engines
DE4140962A1 (en) * 1991-12-12 1993-01-21 Bosch Gmbh Robert Blowing in air=fuel mixt. in IC engine combustion chamber - increasing ratio lambda during blow in phase from blow in start to blow in end of mixt.
JPH0719142A (en) * 1993-06-30 1995-01-20 Ngk Spark Plug Co Ltd Spark plug with fuel injection valve
DE69410582T2 (en) 1993-11-29 1998-11-26 Toyota Motor Co Ltd Fuel injection device with integrated spark plug for engine with direct injection

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US20030111042A1 (en) 2003-06-19
EP1032762A1 (en) 2000-09-06
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EP1431571A3 (en) 2004-08-04
DE19828849A1 (en) 1999-12-30
EP1032762B1 (en) 2004-03-31
WO2000000738A1 (en) 2000-01-06
US6748918B2 (en) 2004-06-15
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EP1431571A2 (en) 2004-06-23
JP2002519571A (en) 2002-07-02

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