• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Flash-spark plug device of the type sliding on an isolator surface for igniting carburated gaseous mixtures comprising a high voltage electrode (1), at least a ground electrode (2), at least a high resistivity dielectric elongated member (12). The dielectric member has a face (11) exposed to the carburated gaseous mixture and the electrodes are in intimate contact with this face and define a dielectric gap thereon. Means is provided for applying a pulsed high voltage across said electrodes. At least a conductive strip (14) lying on the face (13) of the dielectric member opposite to the exposed face and terminating in the region of said face located substantially beneath said high voltage electrode is connected to the ground electrode.
    公开号:SU1074424A3
    申请号:SU813368429
    申请日:1981-12-28
    公开日:1984-02-15
    发明作者:Ларигальди Серж；Лабон Жерар
    申请人:Оффис Насьональ Дъэтюд Э Де Решерш Аэроспасьаль О.Н.Э.Р.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a device for setting fire to carbureted gas mixtures, in particular to arc-type igniters.
    A 5-type arc spark plug is known for igniting carbureted gas mixtures, containing insulated and grounded electrodes connected to a source of high pulse voltage. The candle is equipped with an elongated dielectric part, the working surface of which is grown to a carburized working mixture. The electrodes are in contact with the working surface of the dielectric part. The dielectric part also has a non-working surface oppositely located relative to the working surface. The ends of the electrodes are pointed in such a way that the arc obtained during the operation of the candle follows a curved path. Such a candle allows you to get the length of the discharge arc up to 1 cm [1].
    The disadvantage of a spark plug of an arc type is a low efficiency, due to the limited length of the arc and the impossibility.
    receiving an arc propagating along a given path.
    . TeA arc extension and its distribution along a given path.
    This goal is achieved in that the arc-type spark plug for podsiganiya carbureted gas mixtures containing insulated and grounded electrodes installed with a gap, connected to a high voltage source, and an elongated dielectric part provided with a working surface and. the opposite non-working surface, the electrodes being in contact with the working surface, the candle further comprises a conductive strip located on the non-working surface, with one end of the strip attached to a grounded electrode and the other opposite the insulated electrode.
    The dielectric part can be made in the form of a rectangular plate, and a grounded electrode is provided with a limb along the edge of the plate and connected to a conductive strip on a non-working surface.
    The dielectric part can be made in the form of a hollow cylinder, the inner wall of which forms a working surface, and the electrodes are located at the ends of the cylinder, while conducting
    The purpose of the invention is to increase the ignition efficiency of the mixture pu30
    1074424 4 strip made in the form of a spiral around the outer wall of the cylinder.
    A candle may contain several grounded electrodes and several conductive strips, each of which is connected to one grounded electrode.
    Conducting strips at this ·: can be arranged in the form of a star with rays located at equal angles to one another.
    A candle may contain several dielectric parts, on each of which there is a grounded electrode and a conductive strip, and an insulated electrode is located .; in contact with the working surface of each dielectric part.
    Dielectric parts and their corresponding conductive strips. in this case, stars can be placed in the form of 20 stars with rays located · around the insulated electrode at equal angles to one another.
    . Clearance between; electrodes may be equal to or greater than 3 cm.
    In FIG. 1 shows a diagram of an arc glow plug; in FIG. 2 - axonometric. projection of the first variant of the candle; in FIG. 3 is a diagram 'explaining the principle of operation of a candle} in FIG. 4 · and 5 - the second and third versions of the candles mounted on the wall of the combustion chamber; in FIG. 6 is a fourth embodiment of a candle mounted outside the combustion chamber.
    An arc-type ignition plug is arranged as follows.
    An insulated electrode 1 (Figs. 1 and 2) is connected to one output of a source 2 of a high pulse voltage (30 kV). The other terminal of the source is grounded. The end 3 of the electrode 1 is in contact with the working surface 4 of the elongated dielectric part 5. The working surface '4 is facing the gas mixture. With a gap from the insulated electrode 1, an earthed electrode 6 is located at the edge of the dielectric part 5. It is folded along the edge of the plate and is also in contact with the working surface 4. The end 7 of the grounded electrode 6 ”is raised above the working surface 4. On a non-working surface 8 a conductive strip 9 is located in the dielectric part 5, one end of which is attached to the grounded electrode 6, and the other end is opposite the insulated electrode 1. The conductive strip 9 has a configuration corresponding to the path that the discharge arc should follow. The dielectric part 5 in the embodiment shown in FIG. 2, you. filled in the form of a rectangular plate j
    In FIG. 4 shows a second embodiment of a spark plug mounted in a combustion chamber. Candle comprises grounded electrodes 10-12 and ..takoe same number of conductive strips 13 to May 15, which are arranged in a star shape with rays at equal angles to one another. The dielectric part 16 • in this case is a layer of ceramic coating. The insulated electrode 17 has three branches extending in the radial direction * located in a line with the grounded electrodes 10-12. When working forever, the arc has a 15 star configuration.
    In FIG. 5 shows a third embodiment of a glow plug, also installed in the combustion chamber. In the wall 18 of the combustion chamber there is a place for installing a spark plug. The candle has an insulated electrode 19 connected to a high pulse voltage source 2, a grounded electrode 20. The electrode 20 is held by a conductive plate 21 mounted parallel to the working surface 22 of the dielectric part 23. '
    In FIG. Figure 6 shows the fourth variation of a spark plug designed to ignite a gas mixture in a combustion chamber of a turbo-reactive or direct-flow furnace jet engine. The candle contains a housing 24, mounted on the wall 25 of the combustion chamber. Dielectric: the part is made in the form of a hollow cylinder 26, the inner surface 27 of which is working and facing the gas A mixture. An insulated electrode 28 40 and a grounded electrode 29 are located at opposite ends of the cylinder 26. A small amount of fuel is delivered to the cylinder cavity 26 of the cylinder 26. The outer surface 31 of the cylinder 26 rests on the helical protrusions 32 of the spiral cut in the housing 24, providing an arc along an extended tracks above the work surface 50.
    The dielectric materials used according to this invention must satisfy the requirement of high resistance of at least 1-10 Ohm Cm, preferably 1 · 10 κ 0μ · ομ (for example, alumina-based ceramics).
    Depending on the particular case, the dielectric part 60 can be made in the form of a node with a grounded electrode and a conductive strip with subsequent fastening of the node to the chamber wall.
    In certain cases, all parts of k65 candles can be assembled directly on the chamber wall, and the dielectric part can be performed using spraying or spraying technology, for example, using a plasma torch. In the same way, it is possible to produce a current-conducting strip.
    An arc-type ignition plug works as follows (see Fig. 3). The voltage at the insulated electrode 1 is raised from zero to nons · -. 1 ring kilovolts for several microseconds, i.e. relatively slow. The electric field created around the end 3 of the electrode 1 becomes extensive and produces 1 ionization of the gas mixture. The increase in voltage leads to the formation of a number of small highly ionized conductive filaments 33, which / rapidly grow with increasing voltage. The end of the filament is split into many short, diverging filaments like a cold corona discharge. The current flowing in threads 33 and the temperature rises. Since the filaments 33 are 2 conductors, the electric field changes towards the end 34 of the filaments 33. At the end of the process, one of the ionized filaments 33 reaches the grounded electrode 6 and short-circuit the high-voltage pulse circuit. The current flowing along the thread 33, increases and. Significantly warms it. The arc established in this case receives almost all the energy of source 2, therefore, it can have a considerable length. Conductive plates located at a small distance from the working surface of the dielectric part contribute to the formation of ionized filaments and provide the arc with a predetermined path that can have any desired configuration.
    Although only two forms of a sliding spark are described, namely a diverging sliding spark with a large number of branches and a spiral spark from one branch, a spark of any desired configuration can be obtained in accordance with this invention. In particular, it is easy to obtain parallel sparks consisting of a plurality of branches emerging from one electrode and ending at a common grounded electrode. For example, such a spark may include, firstly, a rectangular branch, and secondly, a U-shaped branch and, thirdly, a converging U-shaped branch.
    A spark plug with a dielectric plate 0.1 mm thick and a resistance of 10 w Ohm-cm, fed by a pulse voltage of 30 kV, gives a spark 3 cm long to ignite a gas under a pressure of 10 atm.
    fig.Z
    figs.
    figure 5
    figb
    VNIIIPI Order 412/56 Circulation 591, Subscription
    Branch of the PPP Patent, Uzhgorod, Project 4,
    权利要求:
    Claims (8)
    [1]
    I
    4H
    tuatt A ((No.
    7
    eight
    about
    four
    Jiib
    R
    ND 4
    , // Av
    [2]
    2. The firing pin according to claim 1, wherein the dielectric part is made in the form of a rectangular plate, and the grounded electrode is provided with a bend along the edge of the plate and connected to a conductive strip on the non-working surface.
    [3]
    3. The spark plug according to claim 1, distinguishing with t & l, that the dielectric part is made in the form of a hollow cylinder, the inner wall of which forms a working surface, and the electrodes are located at the ends of the cylinder; at ucm, the conductive strip is made in the form of a spiral around the outer cylinder wall.
    [4]
    4. The spark plug according to claim 1, wherein it contains several grounded electrodes and several conductive strips, each of which is connected
    with one grounded electrode. .
    [5]
    5. The spark plug according to claim 4, which is characterized by the fact that the conductive strips are arranged in the form of a star with rays arranged at equal angles, one to another.
    [6]
    6. The spark plug according to claim 1, characterized in that it contains several dielectric parts, each of which contains a grounded electrode and a conductive strip, and the insulated electrode is in contact
    with the working surface of each dielectric part.
    [7]
    7. The spark plug according to claim 6, in which the dielectric components and their respective conductive strips are arranged.
    in the form of a star with rays located around an insulated electrode at equal angles to one another.
    [8]
    8. The spark plug according to claim 1, wherein the gap between the electrodes on the working surface is equal to or greater than 3 cm.
    The invention relates to a firing device for igniting carburized gas mixtures, in particular to arc-type spark plugs.
    The known arc-type ignition candle for igniting carburized gas mixtures containing insulated and looped electrodes connected to a source of high pulsed voltage g. The candle is provided with an elongated dielectric component whose working surface is facing the carburized working mixture. The electrodes are in contact with the working surface of the dielectric part. The dielectric part also has a non-working surface opposite to the working surface. The ends of the electrodes are sharpened in such a way that the arc produced during the operation of the candle follows a curved path. Such a candle allows one to obtain an arc length of discharge up to 1 cm l.
    The disadvantage of an arc-type spark plug is the low E (1) efficiency due to the limited length of the arc and the impossibility of obtaining the arc propagating along a given path.
    The purpose of the invention is to improve the efficiency of ignition of a mixture of paths and arc propagation along a given path.
    This goal is achieved in that the arc-type spark plug for igniting carburized gas mixtures, containing installed from a gap / insulated and grounded electrodes connected to a high voltage source, and an elongated dielectric component provided with a working surface and. the opposite surface of the non-working surface, the electrodes having contact with the working surface, the candle further comprises a conductive strip located on the
    whose surface, with one end of the strip attached to a specimen electrode, and the other opposite the insulated electrode. The dielectric part can be made in the form of a rectangular plate, and the grounded electrode is provided with a bend along the edge of the plate and is connected to a conductive strip on the non-working surface.
    The dielectric part can be made in the form of a hollow cylinder, the inner wall of which forms a working surface, and the electrodes are located at the ends
    cylinder, with eto1-1 conductive strip is made in the form of a spiral around the outer wall of the cylinder. A candle can contain several grounded electrodes and several conductors of strips, each of which is connected to one of the electrode electrodes (4. The conductive strips at stati can be arranged in the form of a star with rays located under the corners of the grass one to the other. The candle can contain several dielectric parts, each of which has a grounded electrode and a conductive strip, and an insulated electrode is in contact with the working surface of each dielectric part. Dielectric parts and the conductive strips corresponding to them; in this case, they can be placed in the form of a star with rays located around the insulated electrode at pasnes and angles to each other. The gap between the electrodes can be equal to or greater than 3 cm. } in Fig. 2 is an axon metric, a projection of the first variant of the candle; Fig. 3 is a diagram, explaining the principle of operation of the candle} in Fig. 4 and 5, the second and third versions of the candle mounted on the wall of the combustion chamber; in fig. 6 - the fourth version of the candle installed outside the kg. Measures sgsfani. The arc-type pilot candle is arranged in the following way. The isolated electrode 1 (Figs. 1 and 2) is connected to one output of a high-pulse voltage source 2 (30 kB). The other source pin is grounded. The end 3 of the electrode 1 is in contact with the working surface 4 of the elongated dielectric part 5. The working surface 4 faces the gas mixture. From the ground of the retractor from insulated electrode 1 to the edge of the dielectric part 5, there is a gaped electrode 6. It is bent around the edge of the plate and is also in contact with the working surface 4. The end 7 of the grounded electrode 6 is raised with a working surface On the non-working surface 8 is a dielectric The electrical component 5 has a conductive strip 9, one end of which is attached to the copy of the electrical control unit b, and the other end is located opposite the insulated electrode 1 The conductor and the strip 9 have a configuration corresponding to Uchi, on which the arc should follow. The dielectric part 5 in the embodiment shown in FIG. 2, you. Filled in the form of a rectangular plate. FIG. 4 shows the second variant of the ignition plug installed in the combustion chamber. The candle contains grounded electrodes 10–12 and the same number of conductive strips 1315, which are arranged in the form of a star with rays at equal angles and angles to one another. Dielectric part 16 is in this case a layer of ceramic coating. The insulated electrode 17 has three projections in the radial direction of the wind in one line with grounded electrodes 10-12. During operation of the arc, the arc has a star configuration. FIG. 5 shows a third variant of a spark plug, also installed in the combustion chamber. In the wall 18 of the combustion chamber there is a place for the installation of a spark-plug. The candle has an insulated electrode 19 connected to a source of high pulsed voltage 2, and a grounded electrode 20. The electrode 20 is held by a conductive plate 21 mounted parallel to the working surface 22. Dielectric part 23. In FIG. B shows a fourth version of a spark-plug designed to ignite the gas mixture in the combustion of a turbojet or propulsion jet engine. The candle includes a housing 24 mounted on the wall 25 of the combustion chamber. Dielectric: the part is made in the form of a hollow cylinder 26, the inner surface 27 of which is working and facing the gas mixture. An insulated electrode 28 is a {{grounding-up> 29) electrode located at opposite ends of cylinder 26. Into the cavity of cylinder 26, pipeline 30 supplies small amounts of fuel. over the work surface 27. The dielectric materials used in the present invention must satisfy the requirement of high resistance, at least 1-10 rmsm, preferably 11-6 m-cm (e.g. ramie ceramics based on alumina). Depending on the specific case, the dielectric part may be made in the form of a node with a borrowed electrode and a conductor strip, followed by the attachment of the node to the chamber wall. In certain cases, it is possible to assemble all parts directly on the wall of the chamber, and the dielectric part can be made using sputtering or spraying technology, for example, using a plasma torch. In the same way it is possible to produce a conductive strip. The arc-type spark plug works as follows (see Fig. 3 The voltage on the insulated electrode 1 is raised from zero to a few kilovolts within a few microseconds, i.e. relatively short. The electric field created around the end 3, the electrode 1 became extensive and ionizing the gas mixture. Voltage imbalance leads to the formation of a series of small trotting ionized conductive filaments 33, which rapidly increase with increasing voltage. The end of the filament is split into many short divergent filaments like a cold corona discharge. The current flowing in strands 33 and age-r. Since strands 33 are conductors, the electric field changes to the end of 34 strands 33 At the end of the process, one of the ionized strands 33 reaches the grounded electrode 6 and is short-circuited the high and impulse voltage circuit of the circuit. The current flowing through the Mo thread 33 increases and therefore heats it up. Having established the arc, it receives almost all the energy of source 2, therefore it can have a considerable length. The current-conducting plates, located a short distance from the working surface of the dielectric part, contribute to the formation of ionized filaments and provide the arc with a predetermined path that can have any desired configuration. Although only two forms of a gliding spark are described, namely, discharging a gliding spark with a large number of branches and a spiral spark from one branch, a spark of any desired configuration can be obtained in accordance with this invention. In particular, parallel sparks consisting of multiple branches, emerging from a single electrode and ending at a common grounded electrode can be easily obtained. For example, such a spark may include, firstly, a rectangular branch, secondly, a Y-shaped branch and thirdly, converging, with a Y-shaped branch. A glow plug with a dielectric plate with a thickness of 0.1 mm and resistance of Ω-cm, fed by a pulse voltage of 30 kV, gives a sparkle 3 cm long to ignite the gas under a pressure of 10 atm.
    /
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    类似技术:
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    同族专利:
    公开号 | 公开日
    EP0055658B1|1985-12-04|
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    US4525140A|1985-06-25|
    DE3173158D1|1986-01-16|
    JPS6316644B2|1988-04-11|
    CS273306B2|1991-03-12|
    EP0055658A1|1982-07-07|
    FR2497273B1|1985-09-20|
    FR2497273A1|1982-07-02|
    PL234488A1|1982-07-19|
    CS994381A2|1990-08-14|
    CA1182857A|1985-02-19|
    PL137486B1|1986-06-30|
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    GB1572339A|1975-07-08|1980-07-30|Johnson Matthey Co Ltd|Igniters suitable for gas turbines|
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    JPS55155092U|1979-04-23|1980-11-08|
    US4418300A|1980-01-17|1983-11-29|Mitsubishi Denki Kabushiki Kaisha|Metal vapor discharge lamp with heat insulator and starting aid|DE3544176C1|1985-12-13|1987-05-21|Beru Werk Ruprecht Gmbh Co A|Spark plug with combined sliding and air spark gaps|
    US5046466A|1990-09-20|1991-09-10|Lipski Frank F|Spark-ignition engine|
    US5587630A|1993-10-28|1996-12-24|Pratt & Whitney Canada Inc.|Continuous plasma ignition system|
    US5659132A|1995-03-07|1997-08-19|Fel-Pro Incorporated|Gasket enclosed sensor system|
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    US20090151322A1|2007-12-18|2009-06-18|Perriquest Defense Research Enterprises Llc|Plasma Assisted Combustion Device|
    FR2932229B1|2008-06-05|2011-06-24|Renault Sas|CONTROL OF THE POWER SUPPLY OF AN IGNITION CANDLE OF AN INTERNAL COMBUSTION ENGINE|
    US20130300278A1|2012-05-11|2013-11-14|Uci/Fram Group|Fouling resistant spark plug|
    EP2959135B1|2013-02-21|2019-05-08|United Technologies Corporation|Distributed spark ignition system for a combustor|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8027717A|FR2497273B1|1980-12-29|1980-12-29|METHOD AND DEVICE FOR IGNITION OF A FUEL MIXTURE|
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