利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

245 条记录 (耗时 0.017 秒)

    SPARK PLUG
    151.
    发明授权
    SPARK PLUG 有权

    公开(公告)号：EP2947730B1

    公开(公告)日：2018-02-28

    申请号：EP15168918.9

    申请日：2015-05-22

    申请人： NGK Spark Plug Co., Ltd.

    发明人： Kameda, Hiroyuki

    IPC分类号： H01T13/46 ,  H01T13/32

    CPC分类号： H01T13/462 ,  H01T13/32 ,  H01T13/467

    摘要： A spark plug (100) includes a center electrode (20) extending in the direction of an axis (CL), an insulator (10) having an axial hole (12) which extends in the direction of the axis (CL) and in which the center electrode (20) is disposed, a metallic shell (50) disposed around the insulator (10), a first ground electrode (30A) having a first surface (39A) facing a side surface of the center electrode (20) in a radial direction so as to form a first gap (GA), and a second ground electrode (30B) having a second surface (39B) facing the side surface of the center electrode (20) in the radial direction so as to form a second gap (GB). A relation 60° ‰¤ ¸ ‰¤ 150° is satisfied, where ¸ is a smaller one of angles formed between a first line connecting the axial line and the center of the first surface (39A) and a second line connecting the axis and a center of the second surface (39B) when viewed from a forward end side toward a rear end side in the direction of the axis. The metallic shell (50) has a specific plane (VL) which bisects the metallic shell (50) such that all the ground electrodes (30A, 30B) are located on one side of the plane (VL).

    SPARK PLUG
    152.
    发明公开
    SPARK PLUG 审中-公开
    ZÜNDKERZE

    公开(公告)号：EP3001520A4

    公开(公告)日：2017-01-25

    申请号：EP14800991

    申请日：2014-05-21

    申请人： NGK SPARK PLUG CO

    发明人： SAKAKURA YASUSHI

    IPC分类号： H01T13/32 ,  H01T13/39 ,  H01T13/46

    CPC分类号： H01T13/39 ,  H01T13/32 ,  H01T13/467

    摘要： To provide a new technique that improves durability of a spark plug. A spark plug includes a center electrode, an insulator, a metal shell, a first ground electrode, and a second ground electrode. The center electrode extends in an axial direction. The insulator has an axial hole extending in the axial direction. The center electrode is to be inserted into the axial hole. The metal shell is arranged at an outer periphery of the insulator. The first ground electrode has electrical continuity with the metal shell, and forms a first gap with a front end surface of the center electrode. The second ground electrode has electrical continuity with the metal shell, is sealed to metal shell, extends from the metal shell to a position facing a side surface of the center electrode, and forms an annular second gap between the side surface of the center electrode and an inner peripheral surface of the second ground electrode. Here, a proportion of a size of the first gap to a size of the second gap is equal to or more than 0.80 and equal to or less than 1.25.

    摘要翻译： 提供一种提高火花塞耐久性的新技术。 火花塞包括中心电极，绝缘体，金属壳，第一接地电极和第二接地电极。 中心电极沿轴向延伸。 绝缘体具有沿轴向延伸的轴向孔。 中心电极插入到轴向孔中。 金属壳布置在绝缘体的外周。 第一接地电极与金属壳具有电连续性，并与中心电极的前端表面形成第一间隙。 第二接地电极与金属壳具有电连续性，被密封到金属外壳，从金属壳延伸到面对中心电极的侧表面的位置，并且在中心电极的侧表面和 第二接地电极的内周面。 这里，第一间隙的尺寸与第二间隙的尺寸的比例等于或大于0.80且等于或小于1.25。

    SPARK PLUG
    156.
    发明公开
    SPARK PLUG 有权

    公开(公告)号：EP2360797A4

    公开(公告)日：2014-11-19

    申请号：EP09824581

    申请日：2009-11-02

    申请人： NGK SPARK PLUG CO

    发明人： KAMEDA HIROYUKI ,  KATO TOMOAKI

    IPC分类号： H01T13/32 ,  H01T13/20 ,  H01T13/46

    CPC分类号： H01T13/467 ,  H01T13/32

    摘要： An object is to provide a spark plug which can improve startability and sooting-up prevention performance of an internal combustion engine in a low temperature environment. Means for solution is a spark plug 1 which includes an electrode 5, an insulator 2, a metallic shell 3, a main ground electrode 30, and at least two auxiliary ground electrodes 40. The spark plug 1 is characterized in that (i) the main ground electrode 30 is disposed so that its distal end portion faces a side surface of a front end portion of the center electrode 5 and forms a main spark discharge gap 38 between the distal end portion and the front end portion of the center electrode 5; (ii) each of the auxiliary ground electrodes 40 is disposed so that a portion of its distal end portion end surface faces an outer circumferential surface of a front end portion of the insulator 2; and (iii) a total area S satisfies an expression S/Av

    ZÜNDKERZE
    158.
    发明公开
    ZÜNDKERZE 有权

    公开(公告)号：EP2678908A1

    公开(公告)日：2014-01-01

    申请号：EP12708645.2

    申请日：2012-02-20

    申请人： Francesconi, Christian

    发明人： Francesconi, Christian

    IPC分类号： H01T13/54 ,  H01T13/46

    CPC分类号： H01T13/16 ,  H01T13/467 ,  H01T13/54

    摘要： The invention relates to a spark plug of an internal combustion engine, preferably for spark-ignition gas engines, comprising a spark plug housing (2) that surrounds an insulating body (1) and comprising a center electrode (3) and at least one ground electrode (4) supported by a ground electrode carrier (6), wherein the ignition surface (12) of the center electrode (3) and the ignition surface (26) of the ground electrode (4) are surrounded by a wall (8), which forms a chamber (5) open on the combustion chamber side. According to the invention, the ground electrode carrier (6), as viewed perpendicularly to the longitudinal axis (A) of the spark plug (2), is spaced further apart from the center electrode (3) than the outer surface (7) of the wall (8) of the chamber (5) therefrom and supports at least one finger-shaped ground electrode (4), which extends into the chamber (5) through an opening (50) in the wall (8), wherein the ignition surface (26) of the ground electrode (4) lies at the same height as the ignition surface (12) of the center electrode (3) in the chamber (5).

    摘要翻译： 本发明涉及一种优选用于火花点火燃气发动机的内燃机的火花塞，其包括围绕绝缘体（1）并包括中心电极（3）和至少一个接地体（3）的火花塞壳体（2） （8）围绕中心电极（3）的点火表面（12）和接地电极（4）的点火表面（26），由接地电极载体（6）支撑的电极（4） ，其形成在燃烧室侧开放的腔室（5）。 根据本发明，当垂直于火花塞（2）的纵向轴线（A）观察时，接地电极支架（6）与中心电极（3）相比与中心电极（3）的外表面（7） （5）的壁（8）并且支撑至少一个手指形接地电极（4），所述手指形接地电极通过壁（8）中的开口（50）延伸到腔室（5）中，其中点火 接地电极（4）的表面（26）位于与室（5）中的中心电极（3）的点火表面（12）相同的高度。

    CORONA IGNITION DEVICE HAVING ASYMMETRIC FIRING TIP
    160.
    发明公开
    CORONA IGNITION DEVICE HAVING ASYMMETRIC FIRING TIP 审中-公开
    不对称燃点电晕点火装置

    公开(公告)号：EP2652311A2

    公开(公告)日：2013-10-23

    申请号：EP11799932.6

    申请日：2011-12-12

    申请人： Federal-Mogul Ignition Company

    发明人： BURROWS, John, Anthony ,  LYKOWSKI, James, D.

    IPC分类号： F02P9/00 ,  F02P23/04 ,  H01T13/46 ,  H01T13/50 ,  H01T21/02

    CPC分类号： F02P9/007 ,  F02P23/045 ,  H01T13/467 ,  H01T13/50 ,  H01T21/02 ,  Y10T29/49231

    摘要： A corona ignition system for providing a corona discharge (24) includes an igniter (20) having an electrode (26) with an asymmetrical firing tip (28) relative to an electrode center axis (a
    e ). The firing tip (28) includes a first surface area (A
    1 ) facing the fuel injector (42) which is greater than a second surface area (A
    2 ) facing a cylinder block (32). The first surface area (A
    1 ) presents a projection (60) having a sharp edge, and the second surface area (A
    2 ) presents a round outward surface (62). Accordingly, a radio frequency electric field emitted from the first surface area (A
    1 ) provides a robust corona discharge (24) in a flammable area at an outside edge (30) of the fuel spray. No electric field is emitted from the second surface area (A
    2 ), and no power arcing occurs between the second surface area (A
    2 ) and the cylinder block (32).