• 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:
    The present invention relates to a spark plug of an internal combustion engine, preferably for Otto gas engines, comprising a spark plug housing (2) surrounding an insulating body (1) and a center electrode (3) and at least one earth electrode (4) carried by a ground electrode carrier (6). wherein the ignition surface (12) of the central electrode (3) and the ignition surface (26) of the ground electrode (4) are surrounded by a wall (8) forming a combustion chamber side open chamber (5). According to the invention, the ground electrode carrier (6), viewed perpendicularly to the longitudinal axis (A) of the spark plug (2), has a greater distance from the center electrode (3) than the outer surface (7) of the wall (8) of the chamber (5). and at least one finger-shaped ground electrode (4) which extends through a recess (50) in the wall (8) into the chamber (5), wherein the ignition surface (26) of the ground electrode (4) at the height level of the ignition surface ( 12) of the center electrode (3) in the chamber (5).
    公开号:AT510582A4
    申请号:T231/2011
    申请日:2011-02-21
    公开日:2012-05-15
    发明作者:
    申请人:Francesconi Christian；
    IPC主号:
    专利说明:

    The invention relates to a spark plug according to the preamble of claim 1.
    Such spark plugs are known from WO 2009/059339 A1.
    The aim of the invention is to simplify the production of such spark plugs, especially in view of the fact that complicated to be made complex components are avoided and the spark plug is made of easily manufacturable parts. This is especially important for mass production. Furthermore, the electrical properties of such spark plugs should at least match those of comparable spark plugs, if not exceed these properties. Accordingly, care must be taken to ensure optimum power conduction via the individual earth electrodes. Finally, the ignition properties, preferably by optimizing the thermal conductivity and the heat dissipation from the ignition surfaces to be improved in order to achieve better stability.
    These objects are achieved in a spark plug of the type mentioned above with the features mentioned in the characterizing part of claim 1.
    The arrangement of Masseeiektroden on a separate carrier ensures a uniform power line through the ground electrodes. Since the ground electrode carrier is arranged at a distance from the wall of the chamber, the ground electrodes and the ground electrode carrier represent a system independent of the wall of the chamber with respect to current and heat conduction. This allows a simple readjustment of the ground electrodes and the use-dependent electrode burn-off can be easily corrected , Due to the ability to make the ground electrode carrier and the ground electrodes independently, in particular as a one-piece component, considerable advantages in terms of manufacture result. Furthermore, the fact that the ground electrodes can be manufactured with the ground electrode carrier as a one-piece component and that there is a gap between the ground electrode carrier and the wall of the chamber results in improved heat dissipation from the ignition electrodes to the spark plug housing. The special shape of the ground electrodes and their arrangement provide further advantages in terms of improved ignition performance and shielding or flow through the chamber.
    A particularly simple production with a stable construction of the spark plug is achieved by the special shape of the ground electrode carrier. The cylinder-shaped cross-section having ground electrode carrier can be adjusted in a simple manner in a circumferentially constant distance from the outer surface of the wall of the chamber, resulting in defined conditions with respect to combustion and power line. Furthermore, the structure and the assembly of the spark plug are simplified, since the cylindrical annular ground electrode carrier and also a cylindrical annular cross section aulweisende chamber can be placed in a simple manner on the spark plug and fastened there. An advantageous attachment can be achieved if the ground electrode carrier and the wall are carried by the spark plug housing or an end part arranged on the combustion chamber-side end region of the spark plug housing. The ground electrode carrier can be formed on its inner wall surface with a thread or also have a smooth surface; The same applies to the wall of the chamber. Either the ground electrode carrier or the wall of the chamber are screwed onto the respective protruding end heels of the spark plug housing or the end part and / or fixed by welding in their position or these components are pushed with the closest possible fit to the spark plug or the Endteit and in their desired position , in particular by welding, attached.
    It can be provided that two concentric cylindrical end paragraphs are formed on the spark plug housing or on the end part, of which optionally the inner end paragraph dominates the outer end paragraph in the direction of the combustion chamber, wherein on the outer end of the ground electrode carrier and on the inner end paragraph the wall of the Each chamber placed, plugged or screwed and / or by, optionally punctiform or seam-shaped, welding is attached. It is advantageous if the end part is integrally formed with the wall, wherein the ground electrode support is placed on the end part and / or the spark plug housing, plugged or screwed and / or by, optionally punctiform or seam-shaped, welding is attached. Thus, the production of the spark plug is simplified and the spark plug housing is extended at the same spark plug total length. It results in the same length of the spark plug better heat dissipation from the ground electrode and the wall in the spark plug housing and the risk of Glühzündungen is reduced.
    A simple structure of the spark plug and a stable construction result when the ground electrode carrier is arranged to form a distance from the outer surface of the wall and at least partially surrounds and at least one finger-shaped ground electrode, which extends through a recess in the wall of the chamber in the chamber extends and advantageously the firing surface of the ground electrode is at the height level of the firing surface of the center electrode in the chamber.
    In terms of manufacturing, there are advantages if the ground electrode carrier, viewed perpendicular to the longitudinal axis of the spark plug, has an annular cross-section or is formed by a cylinder ring and / or the at least one
    Ground electrode and the ground electrode carrier integrally formed or connected to each other by welding.
    With regard to the heat resistance of the spark plug, it is advantageous if passage recesses for the passage of ignited gas jets or fresh gas mixture are formed in the wall. For the function of the spark plug, there are advantages if the ground electrode carrier carries one, three or five ground electrodes and / or if the ground electrodes are arranged distributed on the ground electrode carrier at equal distances from one another about the center electrode and / or if each of the ground electrodes emerging from the ground electrode carrier at least in Partial regions of their longitudinal extent has a rectangular or cylindrical ring-section-shaped cross-section and / or if the ignition gap between parallel to the longitudinal axis extending, opposing surface areas of the grounding electrode and the center electrode is formed.
    A simple structure results if on the concentric Endabsätzen of the spark plug housing or the end part in each case an external thread and on the inner wall surface of the wall and / or on the inner wall surface of the ground electrode carrier is in each case adapted to the respective external thread internal thread is formed and / or if the ground electrode carrier and the cylindrical annular wall are arranged concentrically with each other forming the predetermined distance and / or when the cylindrical wall and / or the ground electrode carrier is mounted on the respective end shoulder and fixed there by welding. For the construction of the spark plug, in particular with regard to the current and heat conductivity or heat dissipation, it is advantageous if in the wall a number of extending in the direction of the longitudinal axis of the spark plug, preferably parallel slits is formed, through which the ground electrodes are guided in the interior of the chamber, wherein the slots optionally extend from the combustion chamber side end face of the wall to the level of the end side of the inner end portion of the spark plug housing or the end portion.
    According to the invention, therefore, the carriers or bodies of the ground electrodes extend outside the wall and, with their portion located on the side of the combustion chamber, protrude through the longitudinal slots into the chamber delimited by the wall. Thus, the ground electrodes also have a shielding effect and between the ground electrodes and the adjacent slot wall surfaces a certain desired circulation of the gas can be maintained, which is used to cool the
    Contributes to electrodes. This avoids excessive heat build-up and counteracts pre-ignition.
    It is advantageous for ignition and heat dissipation if an ignition surface carrier directed radially through the slot into the interior of the chamber extends from the section extending parallel to and outside the wall and / or if the ignition surface carrier extends in the direction of the longitudinal axis of the spark plug, the circumferential course of the wall following and the slot partially occlusive connection part in the direction of the combustion chamber and optionally ends there in the same plane with the end face of the wall and / or if the outgoing from the ground electrode carrier portion of the ground electrode outside the peripheral region of the wall is located in front of the slot. By this exemption of the wall, the wall can be better cooled by the gas to be burned.
    In a preferred embodiment, provision is made for the center electrode to have a number of radially outwardly projecting, centrally symmetrical electrodes which have an ignition surface in their respective end region, which faces in each case an ignition surface of a ground electrode. A simplified production and exact ignition performance arise when a circumferential annular groove is subsequently formed on the insulator-side end of the firing surfaces of the center electrode
    An advantageous embodiment of the end portion provides that the patch on the end portion of the spark plug housing end portion is cylindrical and arranged centric to the longitudinal axis of the spark plug and the spark plug housing in the form of an intermediate piece extended combustion chamber side and / or that the end portion with its combustion chamber end portion of the base region of the center electrode surrounds.
    A structurally simple and reliable construction results when the end part is connected to the spark plug housing by welding and / or screws and / or when the end part surrounds the base of the center electrode and the insulating body to form a distance.
    Fig. 1 shows a schematic longitudinal section through an embodiment of a spark plug according to the invention. Figs. 2a and 2b show embodiments of a center electrode. Fig. 3 shows a perspective view of a spark plug according to the invention. 4a shows a possible embodiment of the spark plug according to the invention according to FIG. 1. FIG. 4b shows an embodiment of a spark plug with an attached end part. Fig. 4c shows a erfmdungsgemäße spark plug with an attached end portion of which is integral with the wall of the chamber, wherein the ground electrode support is welded to this end part. • «♦ 4 4 44 4 • 4 4 * 4 x 4 x 4 4 4 4 4 5 5 5 5 3 3 4 44 44 · t ·« 4, the invention is explained in more detail below with reference to the drawing, for example.
    Fig. 1 shows a spark plug for use in an internal combustion engine, in particular for a gasoline engine. From a insulating body 1, a spark plug housing 2 is supported, wherein from the insulating body 1, a base center electrode 3a is enclosed or going off. On this base center electrode 3a of the spark plug, the center electrode 3 having at least one ignition surface 12 is mounted.
    To form at least one ignition gap 13, at least one ground electrode 4 carried by a ground electrode carrier 6 is provided. Advantageously, the ground electrodes 4 are arranged distributed on the ground electrode carrier 6 at equal distances from each other about the center electrode 3. The ground electrode carrier 6 is carried by the spark plug housing 2 and is fixed thereto.
    As can be seen from FIG. 1, the ground electrodes 4 each extend in the form of a finger with a section 41 away from the ground electrode carrier 6 and are fastened, preferably welded, to the carrier 6. The ground electrode 4 and the carrier 6 may optionally be designed as a one-piece component. The combustion chamber-side end region or the ignition surface 26 of the ground electrode 4 lie on an ignition surface carrier 51 and extend parallel to the longitudinal axis A of the spark plug or parallel to the facing ignition surface 12 of the center electrode 3. The ignition gap 13 is between the opposing ignition surfaces 26, 12 of the ground electrode 4 and the center electrode 3 is formed. These Zündfiächen 26, 12 may preferably be covered with precious metal or noble metal alloys in the form of sheets or plates.
    For fastening the ground electrode carrier 6 to the spark plug housing 2, it is provided that the spark plug housing 2 has two concentric, cylindrical end shoulders 17, 18, of which the inner end shoulder 17 projects beyond the outer end shoulder 18 in the direction of the combustion chamber. On the outer end paragraph 18 of the ground electrode support 6 and on the inner end paragraph 17 Is a combustion chamber side open chamber 5 forming wall 8 placed, plugged or screwed and / or optionally secured by, in particular point or seam-shaped, welding. The inner dimensions of the wall 8 and the ground electrode carrier 6 are adapted to the respective outer dimensions of the end paragraphs 17, 18. The wall 8 forms a screen or shield and the spark plug according to the invention can also be referred to as Schirmzündkerze.
    The ground electrode carrier 6 and in particular also the portion 41 of each of the ground electrodes 4 departing from the carrier are arranged at a distance from the outer surface 7 of the wall 8 chamber 5, possibly offset with respect to the center electrode 3 down toward the spark plug housing 2. This distance is • fl ♦ t · · · fl fl fl fl fl fl fl fl fl fl fl fl fl fl fl A A A A A A A A A A A A A A A A A A A A A A Fl flfl provided to ensure a defined or uninfluenced current flow in the ground electrode carrier 6. Furthermore, by the distance 21, as already mentioned above, an independent or defined heat dissipation from the ground electrodes 4 to the spark plug housing 2 allows.
    In Fig. 1, a spark plug with a cylindrical wall 8 is shown, which surrounds the center electrode 3 circumferentially. Modifications of the shape of such walls or chambers can also be provided.
    A simple construction and a simple production result when the wall 8 of the combustion chamber side open Wirbefkammer 5 and the ground electrode support 6 at least partially have annular cross-section or are each formed by a cylinder ring.
    In the wall 8 through openings 10 may be formed for the passage of the gas.
    Each finger-shaped ground electrode 4 is advantageously bent from the ground electrode support 6 to form a parallel to the wall 8 extending portion 41 on the center electrode 3 out in the form of Zündflächenträgers 51 and ends before the center electrode 3. In the wall 8 to slots 50 are formed. The width of these slots 50 substantially corresponds to the width of the section 41 or slightly exceeds this width. These slots 50 extend substantially over the entire height of the wall 8, that is, they go in particular from a region of the wall 8, which lies approximately at the level of the end face of the spark plug housing 2, and terminate at the combustion chamber end face of the wall eighth Through this slot 50, the bent radially extending Zündflächenträger 51 of the ground electrode 4 extends in the direction of the center electrode 3. At the extending radially from the portion 41 through the slot 50 into the interior of the chamber 5 Zündflächenträger 51 includes a parallel to or in the direction the longitudinal axis A of the spark plug extending connecting part 52 at. The connecting part 52 follows the circumferential course of the wall 8 and closes in this area at least partially the slot 50 and is preferably within the slot 50. This connector 52 extends from the Zündflächenträger 51 in the direction of the combustion chamber and ends with the end face of the wall 8 and contributes to regulated gas circulation.
    As can be seen from FIGS. 2 and 3, the center electrode 3 has three centrically symmetrically arranged ignition surfaces 12, to each of which an ignition surface 26 faces a ground electrode 4.
    On the radially outwardly facing surface regions 12 of the center electrode 3 and / or on the center electrode 3 facing surfaces 26 of the respective opposing ground electrodes 4 adjacent tracks 40 from
    be applied or melted a noble metal. Instead of directly applied or reflowed noble metal alloy sheets 40 as shown in FIG. 2a, the noble metal alloy can also be applied to cantilevered areas 48 of the cylindrical portion of the center electrode 3 in the form of noble metal platelets 40 'or welded or fused, which areas 48 are formed by welded or integrally molded elevations , Such raised areas 48 can also be formed or attached to the ground electrodes 4, onto which noble metal alloy, optionally in the form of noble metal flakes, is applied or welded or melted. On the brennraumfemen side of the ignition surfaces 12 and directly below the elevations 48 of the center electrode 3, a circumferential annular groove 61 may be formed. This annular groove 61 represents a defined limit of the ignition surfaces 12 and facilitates the welding and application of noble metal platelets and / or tracks 40,40 '.
    The wall 8 of the chamber 5 and / or the ground electrodes 4 and / or the ground electrode support 6 are made of nickel-based alloy and / or high-temperature stainless steel and / or hot corrosion-resistant, good thermal conductivity metal alloys; the wall 8 can also be made of brass. For the production and operation of the spark plugs, it has proved to be advantageous if the number of ground electrodes 4 is odd or that the ground electrodes 4 do not face each other with respect to the central axis of the center electrode 3. Thus, the application of noble metal alloys on the outgoing from the carrier 6 ground electrodes 4 is easily possible.
    The proposed slot 50 facilitates required maintenance or readjustments.
    The ground electrode carrier 6 and the wall 8 of the chamber 5 are electrically conductively connected to the spark plug housing 2. The center electrode 3 is connected to the base center electrode 3a of the spark plug, preferably by welding; the base center electrode 3a is guided in the insulator body 1 and electrically insulated from the insulator body 1 toward the plug housing 2.
    The ground electrodes 4 are designed in such a way that the section 41 extends substantially straight and without a turn parallel to the wall 8 and preferably has a constant cross-sectional shape over this longitudinal extent. The transition from the ground electrode carrier 6 to the section 41 can be rounded.
    In Fig. 4a, a spark plug is shown, as shown in Fig. 1 and described in more detail. L designates the length of the spark plug housing 2, the earth electrode carrier 6 and the wall 8 being mounted on corresponding shoulders 17, 18 of the spark plug housing 2 at the combustion chamber end region of the spark plug 2. »· · · · · Ι £ £ · · · · * * * bzw. bzw. bzw. bzw. bzw. bzw. bzw. bzw. bzw. bzw. bzw. bzw. bzw. insbesondere insbesondere. In the embodiment of the spark plug according to FIG. 4b, an end part 60 in the form of an intermediate ring is placed on the combustion-chamber-side end region of the spark plug housing 2, for example plugged or screwed on, and optionally secured by punctiform or seam-shaped welding. This end portion 60 serves to extend the spark plug housing 2. This end portion 60 carries a shoulder 18, on which the
    Ground electrode carrier 6 is attached by plugging, screwing and / or welding and also carries a paragraph 17, which carries the wall 8. This results in a length L1 of spark plug housing 2 and attached end portion 60, which is greater than the length L. Thus, the parts required for the ignition, namely the ground electrode 4 and the wall 8 designed shorter and the distance B between the wall. 8 and the shaft 41 of the ground electrode can be made larger. This improves heat dissipation and ignition safety.
    In the embodiment of the spark plug according to FIG. 4 c, the wall 8 is formed in one piece with the end part 60, which is fastened to the combustion-chamber-side end region of the spark plug housing 2. For this purpose, a shoulder 64 may be formed on the spark plug housing, on which the end portion 60 is mounted or screwed and optionally secured by seam or spot welding. On the end portion 60 of the ground electrode support 6 is placed, in particular welded. The ground electrode carrier 6 can be placed on a shoulder 18 of the end portion 60 and fixed there by welding.
    The dark arrows, which are directed to the longitudinal axis A of the spark plug, represent possible welds or welds, with which the end portion 60 and / or the ground electrode support 6 and / or the wall 8 can be welded to these respective supporting components.
    It is also possible to provide other types of attachment for the end portion 60 to the spark plug housing 2 and / or to the wall 8 and / or the ground electrode supports at the end portion 60 and / or the spark plug housing 2, e.g. a pressing. In any case, the end portion 60 will not be placed on the tapered insulator body. These parts are necessarily spaced for isolation reasons.
    By one piece, it is understood in particular that the respective component (s) have no welded or soldered connection and are formed from the same material or are present as a single non-composite part or are formed from the same component.
    权利要求:
    Claims (21)
    [1]
    1. A spark plug of an internal combustion engine, preferably for Otto gas engines, with an insulating body (1 ) and a center electrode (3) and at least one ground electrode (4) carried by a ground electrode support (6), wherein the ignition surface (12) of the center electrode (3) and the ignition surface (26) of the ground electrode (4) of a wall (8) forming a combustion chamber side open chamber (5) are surrounded, characterized in that the ground electrode support (6) seen perpendicular to the longitudinal axis (A) of the spark plug (2), from the center electrode (3) has a greater distance than the outer surface (7) of the wall (8) of the chamber (5) and at least one finger-shaped ground electrode (4) extending through a recess (50) in the wall (8) extends into the chamber (5), wherein the Ignition surface (26) of the ground electrode (4) au f is the height level of the ignition surface (12) of the center electrode (3) in the chamber (5).
    [2]
    2. Spark plug according to claim 1, characterized in that the ground electrode carrier (6) and the wall (8) from the spark plug housing (2) or by a combustion chamber end portion of the spark plug housing (2) arranged end portion (60) are supported.
    [3]
    3. Spark plug according to claim 1 or 2, characterized in that on the spark plug housing (2) or on the end portion (60) has two concentric cylindrical end heels (17, 18) are formed, of which optionally the inneniiegende end paragraph (17) the outer End paragraph (18) surmounted in the direction of the combustion chamber, wherein on the outer end shoulder (18) of the ground electrode carrier (6) and on the inner end shoulder (17), the wall (8) of the chamber (5) each placed, plugged or screwed and / or by , optionally punctiform or seam-like, welding is attached.
    [4]
    4. Spark plug according to claim 1 or 2, characterized in that the end part (60) with the wall (8) is integrally formed, wherein the ground electrode carrier (6) on the end portion (60) and / or the spark plug housing (2) mounted, attached or screwed on and / or by, optionally punctiform or seam-shaped, welding is attached.
    [5]
    5. Spark plug according to one of claims 1 to 4, characterized in that the spark plug housing (2) near the base of the wall (8) is closer to the combustion chamber end of the spark plug than the ground electrode carrier (6).
    [6]
    6. Spark plug according to one of claims 1 to 5, characterized in that the ground electrode carrier (6) and / or the wall (8), in section perpendicular to the longitudinal axis (A) of the spark plug, at least partially annular cross-section or formed by a cylinder ring are.
    [7]
    7. Spark plug according to one of claims 1 to 6, characterized in that the at least one ground electrode (4) and the ground electrode carrier (6) are integrally formed or joined together by welding.
    [8]
    8. Spark plug according to one of claims 1 to 7, characterized in that in the wall (8) through recesses (10) are formed for the passage of the gas.
    [9]
    9. Spark plug according to one of claims 1 to 8, characterized in that the ground electrode carrier (6) carries one, three or five ground electrodes (4) and / or that the ground electrodes (4) on the ground electrode carrier (6) at equal distances to each other the center electrode (3) are arranged distributed and / or that each of the mass electrode carrier (6) outgoing ground electrode (4) has at least in partial areas of its longitudinal extension in a section (41) in cross-section rectangular or cylindrical ring section-shaped cross-section.
    [10]
    10. Spark plug according to one of claims 1 to 9, characterized in that the spark gap (13) extending parallel to the longitudinal axis (A), opposite, the ignition surfaces (12, 26) forming, optionally having a precious metal or precious metal alloy order, Surface regions of the ground electrode (4) and the center electrode (3) is formed.
    [11]
    11. Spark plug according to one of claims 1 to 10, characterized in that on the two concentric Endabsätzen (17, 18) of the spark plug housing (2) or the end portion (60) each have an external thread and on the inner wall surface (19) of the wall ( 8) and on the inner wall surface (20) of the ground electrode carrier (6) each adapted to the respective external thread internal thread is formed and / or that the ground electrode carrier (6) and the wall (8) to form a predetermined radial distance (21) or offset are arranged concentrically to each other and / or that the wall (8) and the ground electrode carrier (6) on the respective end paragraph (17,18) plugged and secured there by welding.
    [12]
    12. Spark plug according to one of claims 1 to 11, characterized in that in the wall (8) a number of extending in the longitudinal direction of the spark plug or parallel to the direction of the longitudinal axis (A) of the spark plug slots (50) is formed by the the ground electrodes (4) are guided into the interior of the chamber (5), wherein the slots (50) optionally from the combustion chamber side end face of the wall (8) to the level range of the end side of the inner end portion (17) or the end face of the end portion (60).
    [13]
    13. Spark plug according to one of claims 1 to 12, characterized in that from the ground electrode carrier (6) outgoing portion (41) of the respective ground electrode (4) outside the peripheral region of the wall (8) lying in front of the respective slot (50) Area is located and / or parallel to the longitudinal axis (A) of the spark plug is aligned.
    [14]
    14. Spark plug according to one of claims 1 to 13, characterized in that from the preferably parallel to and outside the wall (8) extending portion (41) of the ground electrode (4) preferably radially through the slot (50) into the interior of the Chamber (5) leading Zündflächenträger (51) goes off, which optionally carries welded or fused precious metal or Edelmetalllegierungsplattchen.
    [15]
    15. Spark plug according to one of claims 1 to 14, characterized in that from the section (41), in particular from the Zündflächenträger (51), preferably in the longitudinal direction of the spark plug or parallel to the longitudinal axis (A) extending, the circumferential course of the wall ( 8) following and the slot (50) partially occlusive and / or at least partially arranged in the slot connection part (52) in the direction of the combustion chamber and optionally ends in the same plane with the end face of the wall (8).
    [16]
    16. Spark plug according to one of claims 1 to 15, characterized in that the center electrode (3) has a number radially outwardly outgoing, centrically symmetrically formed electrodes which have in their respective end an ignition surface (12), each having an ignition surface ( 26) is opposite a ground electrode (4).
    [17]
    17. Spark plug according to one of claims 1 to 16, characterized in that subsequent to the isoiatorseitigen end portion of the ignition surfaces (12) of the central electrode (3) or the electrodes, a circumferential annular groove (61) is formed.
    [18]
    18. Spark plug according to one of claims 2 to 17, characterized in that on the end region of the spark plug housing (2) patch end portion (60) designed in the form of a rotationally symmetrical cap or in the form of a cylinder ring and arranged centrally to the longitudinal axis (A) of the spark plug is and extends the spark plug housing (2) in the form of an extension or intermediate piece on the combustion chamber side.
    [19]
    19. Spark plug according to one of claims 2 to 18, characterized in that the end part (60) with its combustion chamber end region surrounds the base region of the center electrode (3).
    [20]
    20. Spark plug according to one of claims 2 to 19, characterized in that the end part (60) with the spark plug housing (2) is connected by welding and / or screws.
    [21]
    21. Spark plug according to one of claims 2 to 20, characterized in that the end part (60) surrounding the base of the center electrode (3) and / or the combustion chamber side, preferably tapered, end portion of the insulating body (1) to form a distance. Vienna, February 21, 2011
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    同族专利:
    公开号 | 公开日
    CA2826796C|2020-06-30|
    WO2012113001A1|2012-08-30|
    EP2678908A1|2014-01-01|
    AU2012220325A1|2013-10-03|
    EP2678908B8|2015-05-06|
    DK2678908T3|2015-07-13|
    CA2826796A1|2012-08-30|
    BR112013020577B1|2020-10-20|
    US20130313960A1|2013-11-28|
    AU2012220325B2|2016-03-24|
    EP2678908B1|2015-04-01|
    AT510582B1|2012-05-15|
    US9077156B2|2015-07-07|
    ES2543014T3|2015-08-13|
    PT2678908E|2015-07-07|
    BR112013020577A2|2016-10-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5971280A|1982-10-15|1984-04-21|Hiroshi Kanai|Central electrode for ignition plug|
    EP1265328A1|2001-06-05|2002-12-11|Jenbacher Aktiengesellschaft|Spark plug of an internal combustion engine|
    WO2009059339A1|2007-11-05|2009-05-14|Christian Francesconi|Spark plug comprising a ground electrode support|
    AT410151B|2001-06-05|2003-02-25|Jenbacher Ag|SPARK PLUG OF AN INTERNAL COMBUSTION ENGINE|US9285120B2|2012-10-06|2016-03-15|Coorstek, Inc.|Igniter shield device and methods associated therewith|
    DE102014117714B4|2014-12-02|2016-06-09|Federal-Mogul Ignition Gmbh|Spark plug for a gas-powered internal combustion engine|
    DE102016120984B4|2016-11-03|2018-10-18|Federal-Mogul Ignition Gmbh|Prechamber spark plug for a gas-fueled internal combustion engine and method for its production|
    US10669944B2|2016-11-16|2020-06-02|General Electric Company|Cooling shrouds|
    法律状态:
    2015-07-15| PC| Change of the owner|Owner name: FRANCESCONI TECHNOLOGIE GMBH, AT Effective date: 20150605 |
    2016-05-15| HC| Change of the firm name or firm address|Owner name: GE KAPFENBERG GMBH, AT Effective date: 20160331 |
    优先权:
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    PT127086452T| PT2678908E|2011-02-21|2012-02-20|Spark plug|
    PCT/AT2012/000036| WO2012113001A1|2011-02-21|2012-02-20|Spark plug|
    ES12708645.2T| ES2543014T3|2011-02-21|2012-02-20|Spark plug|
    CA2826796A| CA2826796C|2011-02-21|2012-02-20|Spark plug|
    DK12708645.2T| DK2678908T3|2011-02-21|2012-02-20|Spark|
    BR112013020577-6A| BR112013020577B1|2011-02-21|2012-02-20|spark plug|
    AU2012220325A| AU2012220325B2|2011-02-21|2012-02-20|Spark plug|
    EP20120708645| EP2678908B8|2011-02-21|2012-02-20|Spark plug|
    US13/985,320| US9077156B2|2011-02-21|2012-02-20|Spark plug|
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