EP1032762B1 - Soupape d'injection de carburant a bougie integree - Google Patents

Soupape d'injection de carburant a bougie integree Download PDF

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Publication number
EP1032762B1
EP1032762B1 EP99924738A EP99924738A EP1032762B1 EP 1032762 B1 EP1032762 B1 EP 1032762B1 EP 99924738 A EP99924738 A EP 99924738A EP 99924738 A EP99924738 A EP 99924738A EP 1032762 B1 EP1032762 B1 EP 1032762B1
Authority
EP
European Patent Office
Prior art keywords
valve body
face
ignition
valve
fuel
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 - Lifetime
Application number
EP99924738A
Other languages
German (de)
English (en)
Other versions
EP1032762A1 (fr
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP04000412A priority Critical patent/EP1431571B1/fr
Publication of EP1032762A1 publication Critical patent/EP1032762A1/fr
Application granted granted Critical
Publication of EP1032762B1 publication Critical patent/EP1032762B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors 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
    • F02M51/0671—Injectors 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
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F02M61/163—Means being injection-valves with helically or spirally shaped grooves

Definitions

  • the invention relates to a fuel injector with an integrated spark plug according to the preamble of the main claim.
  • a fuel injector with an integrated spark plug according to the type of the main claim is already known.
  • the fuel injection valve with integrated spark plug is used to inject fuel directly into the combustion chamber of an internal combustion engine and to ignite the fuel injected into the combustion chamber.
  • the compact integration of a fuel injector with a spark plug saves installation space on the cylinder head of the internal combustion engine.
  • the known fuel injection valve with an integrated spark plug has a valve body which, together with a valve closing body which can be actuated by means of a valve needle, forms a sealing seat, to which an injection opening opening on an end face of the valve body facing the combustion chamber is connected.
  • the valve body is insulated against high voltage by a ceramic insulation body from a housing body that can be screwed into the cylinder head of the internal combustion engine.
  • a ground electrode is located on the housing body in order to form a counter potential to the valve body to which high voltage is applied. When a sufficient high voltage is applied to the valve body, a sparkover occurs between the valve body and the ground electrode connected to the housing body.
  • EP 0 632 198 A1 discloses a further fuel injection valve with an integrated spark plug for injecting fuel directly into a combustion chamber of an internal combustion engine and for igniting the fuel injected into the combustion chamber.
  • the spark plug-injection valve combination has a valve body which, together with a valve closing body, forms a sealing seat, which is adjoined by at least one outlet opening opening on an end face of the valve body facing the combustion chamber.
  • the spark plug-injection valve combination has a housing body which is insulated from the valve body, an ignition electrode being provided on the housing body in order to generate a sparkover between the valve body and the ignition electrode.
  • the ignition electrode and the valve body are shaped such that the sparkover occurs between the end face of the valve body facing the combustion chamber and the ignition electrode.
  • the one ignition electrode is equipped in such a way that it comes from the housing body first parallel to the axis and then bent at a right angle to the longitudinal valve axis and thus also to the corresponding end face of the valve body, so that the end of the ignition electrode is parallel to the end face of the valve body.
  • the fuel injector according to the invention with an integrated spark plug with the characterizing features of the main claim has the advantage that the position of the sparkover with respect to the position of the spray opening is reproducible and clearly defined. This ensures reliable ignition of the sprayed fuel jet.
  • the position of the flashover and thus the ignition point can be placed in the area of the sprayed fuel jet with the least cyclical jet fluctuations. The point in time at which the fuel jet ignites therefore exhibits extremely small fluctuations from one injection cycle to the next.
  • By positioning the flashover or the ignition point in the vicinity of the spray opening sooting and coking of the spray opening are counteracted and thus a change in the jet geometry caused thereby is counteracted.
  • the edge for determining the position of the sparkover can be provided either on the end face of the valve body or on the ignition electrodes.
  • the edge can be formed on the end face of the valve body by an elevation or depression. It is advantageous if the valve body has a rounded flank area on the elevation in order to direct the air flow specifically to the ignition point.
  • One or more pin-like ignition electrodes can be attached to the housing body in such a way that they are inclined at a predetermined angle of inclination in the direction of the end face of the valve body.
  • An edge of the ignition electrodes forms the point with the smallest distance from the end face of the valve body and thus defines the ignition point. If the edge defining the ignition point is formed on the end face of the valve body, a simple one can also be used as the ignition electrode wire spanning the end face of the valve body are used, which represents a particularly inexpensive embodiment.
  • the ignition electrode can be configured in a ring shape and have an opening for the fuel jet sprayed off from the spray opening.
  • the edge defining the ignition point is formed at the opening of the ring-shaped ignition electrode.
  • the opening of the ring-shaped ignition electrode widens conically in the spray direction of the fuel jet, the opening angle of the ignition electrode being advantageously adapted to the opening angle of the fuel jet.
  • a design of the holder for the ignition electrode with radially distributed rod-shaped projections and radially arranged pins guided radially to the projections ensures a sufficient radial flow of the combustion air and supports the reliable ignition of the fuel jet.
  • FIG. 1 shows a fuel injection valve with an integrated spark plug for injecting fuel directly into a combustion chamber of a mixed-compression, spark-ignition internal combustion engine and for igniting the fuel injected into the combustion chamber in accordance with an embodiment of the invention.
  • the fuel injector with an integrated spark plug which is generally provided with the reference number 1, has a first housing body 2, which can be screwed into a receiving bore of a cylinder head (not shown in FIG. 1) by means of a thread 3, and a second housing body 4 and a third housing body 5.
  • the metallic housing formed by the housing bodies 3, 4, 5 surrounds an insulation body 6, which in turn has a valve body 7, a swirl insert 14 and a valve needle 9, which extends inside the swirl insert 14 beyond the inlet end 8 of the valve body 7, at least partially radially on the outside surrounds.
  • valve-closure member 10 Connected to the valve needle 9 is a valve-closure member 10 which is conical on the injection side and, together with an inner conical valve seat surface, forms a sealing seat on the injection-side end 11 of the valve body 7.
  • the valve needle 9 and the valve closing body 10 are formed in one piece.
  • the valve closing body 10 When the valve closing body 10 is lifted off the valve seat surface of the valve body 7, the valve closing body 10 opens an outlet opening 12 formed in the valve body 7, so that a conical fuel jet 13 is sprayed off.
  • a swirl groove 14a is provided in the swirl insert 14 in the exemplary embodiment shown, wherein a plurality of swirl grooves 14a can also be provided.
  • First ignition electrodes 70a for generating an ignition spark are provided on the first housing body 2.
  • the ignition electrodes 70a carry 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 Adjust fuel jet 13.
  • the ignition electrodes 70a can either be immersed in the fuel jet 13 or the fuel jet 13 can be guided past the ignition electrodes 70a at a short distance without the ignition electrodes 70a being wetted by the fuel. It is also conceivable for the ignition electrodes 70a to be immersed in gaps in individual jets generated by the outlet opening 12 or a plurality of spray 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 welding point 17.
  • the valve needle 9 is divided into a first metallic, spray-side guide section 9a, a second metallic, inlet-side guide section 9b and, in the exemplary embodiment, sleeve-shaped, ceramic insulation section 9c.
  • the first guide section 9a is guided in the swirl insert 14.
  • the guidance takes place through the cylindrical jacket surface 18 of the valve closing body 10, which is formed in one piece with the first guide section 9a.
  • a second guide of the valve needle 9 takes place in the insulation body 6 by means of the second guide section 9b.
  • the jacket surface 19 of the second guide section 9b acts with a bore 20 together in the insulation body 6.
  • the guide sections 9a and 9b serving as guides are designed as metallic components and can be manufactured with the manufacturing accuracy required for the guide.
  • the insulation section 9c Due to the low surface roughness of the metallic components, there is only a low coefficient of friction on the guides.
  • the insulation section 9c can be manufactured as a ceramic part. Since the insulation section 9c does not serve to guide the valve needle 9, only small demands are made on the dimensional accuracy and the surface roughness. A revision of the ceramic part is therefore not necessary.
  • the guide sections 9a and 9b are connected to the insulation section 9c not only in a force-locking manner but also in a form-fitting manner.
  • the guide sections 9a and 9b each have a pin 21 or 22, which is respectively inserted into a recess in the insulation section 9c designed as a bore 23.
  • the connection between the pins 21 and 22 of the guide sections 9a and 9b is preferably established by a frictional connection, by gluing or shrinking on.
  • the insulation section 9c is preferably sleeve-shaped.
  • the material saved compared to a solid body results in a weight saving, which leads to shorter switching times of the fuel injector 1.
  • the second guide section 9b is connected to an armature 24, which cooperates with a magnet coil 25 for the electromagnetic actuation of the valve closing body 10.
  • a connecting cable 26 is used to energize the solenoid 25.
  • the solenoid 25 is received by a coil carrier 27.
  • a sleeve-shaped core 28 penetrates the solenoid 25 at least partially and is removed from the armature 24 by a gap, which cannot be seen in the figure, in the closed position of the fuel injector 1 apart.
  • the magnetic flux circuit is closed by the ferromagnetic components 29 and 30.
  • the fuel flows into the fuel injector with an integrated spark plug 1 via a fuel inlet connection 31, which can be connected via a thread 32 to a fuel distributor (not shown).
  • the fuel first flows through a fuel filter 33 and then flows into a longitudinal bore 34 of the core 28.
  • an adjusting sleeve 36 is provided which is provided with a hollow bore 35 and which can be screwed into the longitudinal bore 34 of the core 28.
  • the adjusting sleeve 36 is used to adjust the bias of a return spring 37 which acts on the armature 24 in the closing direction.
  • a counter sleeve 38 serves to secure the setting of the adjusting sleeve 36.
  • the fuel continues to flow through a longitudinal bore 39 in the second guide section 9b of the valve needle 9 and enters an cavity 40 of the insulation body 6 at an axial recess 40. From there, the fuel flows into a longitudinal bore 42 of the valve body 7, in which the valve needle 9 also extends, and finally reaches the previously described swirl groove 14a on the outer circumference of the swirl insert 14.
  • the ignition electrodes 70a connected to the housing body 2 have a ground potential, while the valve body 7 can be acted upon by a high-voltage potential for generating ignition sparks.
  • a high-voltage cable 50 which is inserted into the insulation body 6 via a lateral, pocket-like recess 51, is used to supply the high voltage.
  • the stripped end 52 of the high-voltage cable 50 is soldered or welded to a contact clip 54 at a soldering or welding point 53.
  • the contact clip 54 clasps the valve body 7 and establishes a reliable electrically conductive contact between the stripped end 52 of the high-voltage cable 50 and the valve body 7.
  • the insulation body 6 has a radial bore 55 through which a soldering or Welding tool can be guided to the soldering or welding point 53.
  • the pocket-like recess 51 is poured out with an electrically insulating casting compound 56.
  • an erosion resistor 57 integrated in the high-voltage cable 50 can also be cast into the casting compound 56.
  • a high-voltage-resistant film 58 can be inserted into the pocket-like recess 51 of the insulating body 6 and can also be cast with the sealing compound 56.
  • potting compound 56 is such. B. silicone.
  • the insulation body 6 and the valve body 7 can be screwed together on a thread 60. Furthermore, the insulation body 6 can be screwed together with the housing body 2 on a further thread 61. The threads 60 and 61 are preferably secured with a suitable adhesive.
  • the insulation body 6 can be manufactured inexpensively as a molded ceramic part.
  • the valve body 7 and the insulation body 6 can be screwed and glued with a mounting mandrel in order to compensate for misalignments in the guidance of the valve needle 9.
  • the spatially close arrangement of the erosion resistor 57 to the ignition electrodes 70a reduces the erosion at the ignition electrodes 7a and, in spite of an increased electrical capacity, allows the fuel injector with an integrated spark plug 1 to be completely metal-coated by the metallic housing bodies 2, 4 and 5.
  • FIG. 2 shows an enlarged illustration of the end region on the injection side of the first exemplary embodiment of the fuel injector with integrated spark plug 1 shown in FIG. 1.
  • the ignition electrodes 70a can be seen particularly well in this illustration. 2
  • the fuel injector with integrated spark plug 1 is screwed into 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.
  • cylindrical ignition electrodes 70a serve a plurality of projections 78 of the housing body 2.
  • the projections 78 of the housing body 2 are circumferentially offset from one another on the housing body 2, relatively large spaces being formed between the individual projections 78 in order to allow an unimpeded inflow of the combustion air to allow the opening of the outlet opening 12 on the end face 73 of the valve body 7 facing the combustion chamber 72.
  • 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 ⁇ in the direction of the end face 73 of the valve body 7.
  • the end face 73 of the valve body 7 is 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 defines the ignition point. Due to the edge-shaped design, there is an increased electrical field strength at this point, which causes the plasma discharge of the ignition spark. The ignition 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 tests and lies in the area of the so-called jet root of the fuel jet 13 sprayed from the outlet opening 12.
  • the position of the edges 74 can be adjusted to the opening angle ⁇ of that Outlet opening 12 already sprayed fuel jet 13 are adapted.
  • the distance of the edges 74 of the ignition electrodes 70a from the end face 73 of the valve body 7 can be set exactly in terms of production technology by bending a kink 75 of the projections 78.
  • FIG 3 shows a section through the end region of the fuel injection valve with integrated spark plug 1 on the injection side, in accordance with a second exemplary embodiment of the invention. Elements already described are provided with the same reference numerals.
  • the difference from the exemplary embodiment described with reference to FIGS. 1 and 2 consists essentially in the fact that the edge for fixing the position of the sparkover and thus the ignition point is not formed on the ignition electrode 70 but on the end face 73 of the valve body 7.
  • the end face 73 of the valve body 7 has an elevation 80 with a peripheral edge 81.
  • At the edge 81 when the valve body 7 is acted upon by a high voltage, an increased electric field strength arises which triggers the plasma discharge of the ignition spark.
  • the position of the ignition point with respect to the position of the outlet opening 12 can be precisely determined by appropriately dimensioning the diameter of the elevation 80.
  • the ignition electrode 70b carrying the ground potential can be formed by a simple wire which is clamped between a first projection 78a of the housing body 2 and a second projection 78b of the housing body 2 and can be fixed by welds 82.
  • the wire-shaped ignition electrode 70b results in a particularly low configuration Production expense.
  • a recess can also be provided on the end face 73 of the valve body 7, at the boundary of which an edge is likewise formed for the selective increase of the electric field strength.
  • FIG. 4 shows a section through the spray-side end region of a third exemplary embodiment of a fuel injector with an integrated one. Spark plug 1. Elements that have already been described are also provided with the same reference numbers.
  • the ignition electrode 70c is ring-shaped 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 widens in the spray direction 91 of the fuel jet 13.
  • the opening angle ⁇ 'of the opening 90 of the annular ignition electrode 70c is preferably adapted to the opening angle ⁇ of the fuel jet 13.
  • the opening angle ⁇ ′ of the opening 90 preferably coincides with the opening angle ⁇ of the fuel jet 13.
  • the opening 90 has an acute-angled edge 92 which, in this exemplary embodiment, defines the ignition point.
  • the annular ignition electrode 70c is fastened to the projections 78 of the housing body 2 via connecting pins 93.
  • the projections 78 are distributed circumferentially on the housing body 2. For example, 3 or 4 such projections 78 are provided.
  • a connecting pin 93 is assigned to each projection 78.
  • the projections 78 and the connecting pins 93 are relatively narrow, so that relatively large gaps remain between the projections 78 and the connecting pins 93, through which the combustion air can flow unhindered to the mouth of the outlet opening 12 and to the ignition point defined by the peripheral edge 92 , An unimpeded inflow of the combustion air is essential for a safe ignition of the fuel jet 13 and a low soot and coking at the mouth of the outlet opening 12.
  • FIG. 5 shows a section through the spray-side end of a fuel injection valve with integrated spark plug 1 in accordance with a fourth exemplary embodiment.
  • Elements that have already been described are also provided with the same reference numerals here.
  • the difference from the exemplary embodiment already described with reference to FIG. 4 essentially consists in the fact that the ring-shaped ignition electrode 70c has a chamfered section 96, to which the connecting pins 93 connect in an alignment line. This will make edges at the transition between pins 93 and the ring-shaped ignition electrode 70c are avoided, so that there is no increased field strength at these points, which could lead to a parasitic ignition point.
  • FIG. 6 shows a section through the spray-side end of a fuel injector with integrated spark plug 1 in accordance with a fifth exemplary embodiment.
  • the embodiment shown in FIG. 6 represents a combination of the embodiments shown in FIGS. 3 and 4.
  • a ring electrode 70c is provided, the opening 90 of which 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 peripheral edge 81.
  • the circumferential edge 81 of the elevation 80 is located in the vicinity of 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 are on the one hand the smallest distance from one another and on the other hand a particularly high electrical field strength occurs at this point due to the edges 81 and 92.
  • FIG. 7 shows a section through the spray-side end region of a fuel injection valve with integrated spark plug 1 in accordance with a sixth exemplary embodiment of the invention.
  • elements already described are provided with the same reference numerals.
  • the embodiment shown in FIG. 7 largely corresponds to the embodiment already described with reference to FIG. 6 with the difference that the flank area 97 of the elevation 80 of the end face 73 of the valve body 7 is rounded off concavely:
  • the combustion air flowing in from the side is led to the fuel jet 13 and to the ignition point defined by the peripheral edges 81 and 92.
  • the shape and design of the ignition electrodes 70a-70c of the exemplary embodiments described above prevent accidental glow ignition. Furthermore, the ignition electrodes 70a to 70c designed according to the invention have increased mechanical stability and a longer service life. Due to the geometry of the ignition electrodes 70a to 70c and 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 smallest cyclical fluctuations of the Fuel jet. The ignition sparks burn off any deposits on the end face 73 of the valve body 7 in accordance with a self-cleaning effect.

Claims (3)

  1. Injecteur de carburant à bougie intégrée (1) pour l'injection directe de carburant dans une chambre de combustion (72) d'un moteur à combustion interne et pour l'allumage du carburant injecté dans la chambre de combustion (72), comprenant
    - un corps de soupape (7) qui forme, conjointement avec un organe de fermeture de soupape (10), un logement étanche auquel est raccordé au moins un orifice de sortie (12) débouchant sur une surface frontale (73) du corps de soupape (7) tournée vers la chambre de combustion (72), et
    - un corps de boîtier (2) isolé du corps de soupape (7), avec au moins une électrode d'amorçage (70a) placée sur le corps de boîtier (2) afin de générer un éclatement d'étincelles entre le corps de soupape (7) et l'électrode d'amorçage (70a), l'électrode d'amorçage (70a) et le corps de soupape (7) étant formés de manière à ce que l'éclatement d'étincelles se produise entre la surface frontale (73) du corps de soupape (7) tournée vers la chambre de combustion (72) et l'électrode d'amorçage (70a), alors que la surface frontale (73) du corps de soupape (7) tournée vers la chambre de combustion (72) et/ou l'électrode d'amorçage (70a) à proximité de l'orifice de sortie (12) présentent une arête (74, 81, 92) pour fixer de manière reproductible la position de l'éclatement d'étincelles sur la surface frontale (73) du corps de soupape (7) par rapport à la position de l'orifice de sortie (12),
    caractérisé en ce qu'
    une fixation (78) dépassant de la surface frontale (73) du corps de soupape (7) est prévue sur le corps de boîtier (2), une ou plusieurs électrodes d'amorçage (70a) en forme de broche étant fixées sur cette fixation de manière à être inclinées dans la direction de la surface frontale (73) du corps de soupape (7) à un angle d'inclinaison donné (α), moyennant quoi à chaque fois une arête (74) des électrodes d'amorçage (70a) fait face à la surface frontale (73) du corps de soupape (7).
  2. Injecteur de carburant à bougie intégrée selon la revendication 1,
    caractérisé en ce qu'
    à une distance donnée de l'orifice de sortie (12), la surface frontale (73) du corps de soupape (7) comporte une bosse (80) ou un creux avec une arête (81) limitant la bosse (80) ou le creux.
  3. Injecteur de carburant à bougie intégrée selon la revendication 2,
    caractérisé en ce que
    la surface frontale (73) du corps de soupape (7) comporte une bosse (80) avec une zone de flanc (97) arrondie.
EP99924738A 1998-06-27 1999-04-01 Soupape d'injection de carburant a bougie integree Expired - Lifetime EP1032762B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04000412A EP1431571B1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant à bougie integrée

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19828849 1998-06-27
DE19828849A DE19828849A1 (de) 1998-06-27 1998-06-27 Brennstoffeinspritzventil mit integrierter Zündkerze
PCT/DE1999/000984 WO2000000738A1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant a bougie integree

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP04000412A Division EP1431571B1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant à bougie integrée
EP04000412A Division-Into EP1431571B1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant à bougie integrée

Publications (2)

Publication Number Publication Date
EP1032762A1 EP1032762A1 (fr) 2000-09-06
EP1032762B1 true EP1032762B1 (fr) 2004-03-31

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Application Number Title Priority Date Filing Date
EP04000412A Expired - Lifetime EP1431571B1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant à bougie integrée
EP99924738A Expired - Lifetime EP1032762B1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant a bougie integree

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04000412A Expired - Lifetime EP1431571B1 (fr) 1998-06-27 1999-04-01 Soupape d'injection de carburant à bougie integrée

Country Status (6)

Country Link
US (2) US6536405B1 (fr)
EP (2) EP1431571B1 (fr)
JP (1) JP2002519571A (fr)
KR (1) KR20010022302A (fr)
DE (3) DE19828849A1 (fr)
WO (1) WO2000000738A1 (fr)

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WO2001029398A1 (fr) * 1999-10-18 2001-04-26 Orbital Engine Company (Australia) Pty Limited Injection directe de carburants dans des moteurs a combustion interne
AUPQ588500A0 (en) 2000-02-28 2000-03-23 Orbital Engine Company (Australia) Proprietary Limited Combined fuel injection and ignition means
JP5248731B2 (ja) * 2000-06-08 2013-07-31 ナイト，インコーポレイティド 燃焼強化システムおよび燃焼強化方法
DE10038293A1 (de) * 2000-08-05 2002-02-14 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10150167B4 (de) * 2001-10-11 2016-01-07 Volkswagen Ag Verbrennungskraftmaschine mit verbesserter Hochfrequenzzündung
DE10214167A1 (de) 2002-03-28 2003-10-09 Bosch Gmbh Robert Brennstoffeinspritzventil-Zündkerze-Kombination
JP4082347B2 (ja) * 2003-12-18 2008-04-30 トヨタ自動車株式会社 プラズマインジェクター及び排ガス浄化システム
DE102004024535A1 (de) * 2004-05-18 2005-12-15 Robert Bosch Gmbh Brennstoffeinspritzventil mit integrierter Zündvorrichtung
FR2870569B1 (fr) * 2004-05-19 2006-07-21 Renault Sas Dispositif injecteur de carburant pour moteur a combustion interne a allumage commande
US6955154B1 (en) * 2004-08-26 2005-10-18 Denis Douglas Fuel injector spark plug
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
US7314033B2 (en) 2004-11-18 2008-01-01 Massachusetts Institute Of Technology Fuel management system for variable ethanol octane enhancement of gasoline engines
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US6536405B1 (en) 2003-03-25
EP1431571A3 (fr) 2004-08-04
DE19828849A1 (de) 1999-12-30
EP1431571B1 (fr) 2006-03-29
US6748918B2 (en) 2004-06-15
KR20010022302A (ko) 2001-03-15
DE59909032D1 (de) 2004-05-06
EP1032762A1 (fr) 2000-09-06
WO2000000738A1 (fr) 2000-01-06
JP2002519571A (ja) 2002-07-02
EP1431571A2 (fr) 2004-06-23
DE59913266D1 (de) 2006-05-18
US20030111042A1 (en) 2003-06-19

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