1.
    发明专利
    未知

    公开(公告)号:DE60003379D1

    公开(公告)日:2003-07-24

    申请号:DE60003379

    申请日:2000-10-12

    Applicant: DENSO CORP

    Inventor: MORITA YOSHIKI

    Abstract: In a spark plug (100), an annular seal packing (2) is arranged in a gap (1) defined between an insulator (20) and a fitting (10). Electrically insulating oil (4) is filled in an oil-retaining section of the gap (1) that is located on the distal side of the packing (2). The oil-retaining section of the gap (1) is the continuous section having a width (W1) ranging from 0.05 mm to 0.3 mm and an axial length (L1) of 2 mm or more from the packing (2). The filled insulating oil (4) is retained within the oil-retaining section of the gap (1) by its surface tension while it is in a liquid state.

    6.
    发明专利
    未知

    公开(公告)号:DE102005023458A1

    公开(公告)日:2005-12-15

    申请号:DE102005023458

    申请日:2005-05-20

    Applicant: DENSO CORP

    Abstract: An ignition device for an internal combustion engine has a spark plug, an ignition coil, a housing and a mounting portion. The spark plug is for discharging a current to ignite an air-fuel mixture in a combustion chamber of the internal combustion engine. The ignition coil is for supplying the current to the spark plug. The housing encloses the spark plug and the ignition coil therein. The housing has a mounting portion to be disposed in a mounting hole provided in a cylinder head of the internal combustion engine. The mounting portion includes a screw portion a non-screw portion. The screw portion is to be screw-fastened to the mounting hole. The non-screw portion is not to be screw-fastened to the mounting hole.

    7.
    发明专利
    未知

    公开(公告)号:DE60003379T2

    公开(公告)日:2004-05-13

    申请号:DE60003379

    申请日:2000-10-12

    Applicant: DENSO CORP

    Inventor: MORITA YOSHIKI

    Abstract: In a spark plug (100), an annular seal packing (2) is arranged in a gap (1) defined between an insulator (20) and a fitting (10). Electrically insulating oil (4) is filled in an oil-retaining section of the gap (1) that is located on the distal side of the packing (2). The oil-retaining section of the gap (1) is the continuous section having a width (W1) ranging from 0.05 mm to 0.3 mm and an axial length (L1) of 2 mm or more from the packing (2). The filled insulating oil (4) is retained within the oil-retaining section of the gap (1) by its surface tension while it is in a liquid state.

    SPARK PLUG
    9.
    发明专利

    公开(公告)号:JP2001135457A

    公开(公告)日:2001-05-18

    申请号:JP31555499

    申请日:1999-11-05

    Applicant: DENSO CORP

    Inventor: MORITA YOSHIKI

    Abstract: PROBLEM TO BE SOLVED: To provide a spark plug with a simple structure, which can hold insulation oil for preventing stains of an insulator in the gap between the insulator and a mounting bracket and which can maintain the stain-proof effect of the insulation oil for a long time. SOLUTION: In the gap 1 between the insulator 20 and the mounting bracket 10, a ring-shaped seal-packing 2 is arranged, and in the position nearer to the terminal part 1 of the mounting bracket 10 than the packing 2 in the gap 1, insulation oil 4 is filled. The portion filled with the insulation oil 4 in the gap 1 has a width W1 of 0.05 to 0.3 mm and is continuously arranged so that its axial length L1 starting from the packing 2 may be 2 mm or more. The insulation oil 4 thus filled can be held in the gap 1 by its own surface tension in a liquid condition.

    Ignitor for internal combustion engine
    10.
    发明专利
    Ignitor for internal combustion engine 审中-公开
    内燃机点火器

    公开(公告)号:JP2006009783A

    公开(公告)日:2006-01-12

    申请号:JP2005042260

    申请日:2005-02-18

    Abstract: PROBLEM TO BE SOLVED: To prevent breakage of a housing by vibration of an internal combustion engine in an ignitor for the internal combustion engine storing and integrating an ignition plug and an ignition coil in one housing.
    SOLUTION: A non-screw part 12 is provided in a mounting hole 201 of a cylinder head 200 and on an anti-combustion chamber side more than a male screw part 11 among outer peripheral faces of the housing 1 and is brought into contact with an inner peripheral face of the mounting hole 201. Since an end part on the anti-combustion chamber side in the non-screw part 12 becomes a boundary part between a fixing part and a non-fixing part, outside diameter of the boundary part is enlarged and wall thickness of the housing in the boundary part is increased more than that of a conventional housing to improve strength of the boundary part.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:为了防止内燃机的内燃机在将一个火花塞和点火线圈储存和集成在一个外壳中的内燃机的振动中破裂。 解决方案:在壳体1的外周面之间,在气缸盖200的安装孔201和防燃室侧比非阳螺纹部11设置非螺纹部12, 与安装孔201的内周面接触。由于非螺纹部12中的防燃室侧的端部成为固定部和非固定部之间的边界部,所以边界的外径 部分被扩大,边界部分的壳体的壁厚比常规的壳体的壁厚增加得更多,以提高边界部分的强度。 版权所有(C)2006,JPO&NCIPI

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