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7 条记录 (耗时 0.014 秒)

    Glow plug
    2.
    发明公开
    Glow plug 审中-公开
    Glühkerze

    公开(公告)号：EP2873919A1

    公开(公告)日：2015-05-20

    申请号：EP14191847.4

    申请日：2014-11-05

    申请人： NGK Spark Plug Co., Ltd.

    发明人： Okada, Hirofumi

    IPC分类号： F23Q7/00

    CPC分类号： F23Q7/001

    摘要： A glow plug (10), comprising: a heating unit (820); and a sheath tube (810) including a tube portion (860) and a welded portion (850), the tube portion (860) being disposed at an outer circumference of the heating unit (820) and extending in an axial direction, the welded portion (850) containing at least a main constituent of the tube portion (860) and a main constituent of the heating unit (820) and closing a front end of the tube portion (860), wherein at least one of the tube portion (860) and the heating unit (820) contains aluminium, and the welded portion (850) contains aluminium at a content ratio of less than 5 % by mass at a part near a boundary with the tube portion (860).

    摘要翻译： 一种电热塞（10），包括：加热单元（820）; 和包括管部（860）和焊接部（850）的护套管（810），所述管部（860）设置在所述加热单元（820）的外周并沿轴向延伸，所述焊接 所述部分（850）至少包含所述管部分（860）的主要部件和所述加热单元（820）的主要部件并且关闭所述管部分（860）的前端，其中所述管部分 860）和加热单元（820）包含铝，并且焊接部分（850）在与管部分（860）的边界附近的部分中含有的含量小于5质量％的铝。

    GLOW PLUG
    4.
    发明公开
    GLOW PLUG 审中-公开

    公开(公告)号：EP3333483A1

    公开(公告)日：2018-06-13

    申请号：EP17200876.5

    申请日：2017-11-09

    申请人： NGK Spark Plug Co., Ltd.

    发明人： Okada, Hirofumi

    IPC分类号： F23Q7/00

    摘要： [Objective] To provide a glow plug that can realize increase in heating temperature and ensure rapid temperature rising property, and that can suppress temperature decrease when an applied voltage is lowered in order to saturate the temperature.
    [Means for Solution] This glow plug includes: a front end coil connected to the front end of a tube and containing W or Mo as a principal component; and a rear end coil connected to the rear end of the front end coil. A resistance ratio which is the ratio of a resistance value at 1000°C of the front end coil relative to a resistance value at 20°C of the front end coil is greater than a resistance ratio which is the ratio of a resistance value at 1000°C of the rear end coil relative to a resistance value at 20°C of the rear end coil. Relative to the resistance value at 20°C between the front end of the tube and the rear end of the front end coil, the proportion of the resistance value at 20°C between a position of the front end coil at 4 mm from the front end of the tube toward the rear side in the axis direction and the front end of the tube is 55% to 80%.

    Glow Plug
    6.
    发明公开
    Glow Plug 审中-公开
    电热塞

    公开(公告)号：EP2410243A3

    公开(公告)日：2013-01-09

    申请号：EP11174774.7

    申请日：2011-07-21

    申请人： NGK Spark Plug Co., Ltd.

    发明人： Kumagai, Kenichi ,  Okada, Hirofumi ,  Ishii, Shuei

    IPC分类号： F23Q7/00

    CPC分类号： F23Q7/001

    摘要： [Problem] To provide a glow plug with which it is possible to improve heat resistance and durability in comparison with a heretofore known one.
    [Means for Resolution] A glow plug uses a sheathed heater with a heating coil housed in a sheath tube. The sheath tube, being formed from a nickel base alloy containing 21 to 30 percent by mass of chromium (Cr), 0.05 to 0.30 percent by mass of carbon (C), 1.0 to 2.4 percent by mass of aluminum (Al), and 0.1 to 0.3 percent by mass of one kind or more among titanium (Ti), zirconium (2r), and niobium (Nb), is such that when examining a metal structure in a circumferential transverse section of the sheath tube, the size of the metal structure has a variation of 2 or less in crystal grain size number according to JIS G0551 (2005), and Vickers hardness is within a range of 200 to 400.

    Glow Plug
    7.
    发明公开
    Glow Plug 审中-公开
    Glühstiftkerze

    公开(公告)号：EP2410243A2

    公开(公告)日：2012-01-25

    申请号：EP11174774.7

    申请日：2011-07-21

    申请人： NGK Spark Plug Co., Ltd.

    发明人： Kumagai, Kenichi ,  Okada, Hirofumi ,  Ishii, Shuei

    IPC分类号： F23Q7/00

    CPC分类号： F23Q7/001

    摘要： [Problem] To provide a glow plug with which it is possible to improve heat resistance and durability in comparison with a heretofore known one.
    [Means for Resolution] A glow plug uses a sheathed heater with a heating coil housed in a sheath tube. The sheath tube, being formed from a nickel base alloy containing 21 to 30 percent by mass of chromium (Cr), 0.05 to 0.30 percent by mass of carbon (C), 1.0 to 2.4 percent by mass of aluminum (Al), and 0.1 to 0.3 percent by mass of one kind or more among titanium (Ti), zirconium (2r), and niobium (Nb), is such that when examining a metal structure in a circumferential transverse section of the sheath tube, the size of the metal structure has a variation of 2 or less in crystal grain size number according to JIS G0551 (2005), and Vickers hardness is within a range of 200 to 400.

    摘要翻译： [问题]提供一种与先前已知的电热塞相比可以提高耐热性和耐久性的电热塞。 [解决方法]电热塞使用带护套管的加热线圈的护套加热器。 由含有21〜30质量％的铬（Cr），0.05〜0.30质量％的碳（C），1.0〜2.4质量％的铝（Al）和0.1重量％的镍基合金形成的护套管 在钛（Ti），锆（2r）和铌（Nb）中，为0.3质量％以下，为了在外皮管的周向横截面检查金属结构时，金属的尺寸 结构根据JIS G0551（2005）的晶粒尺寸数的变化为2以下，维氏硬度在200〜400的范围内。