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    • 57. 发明授权
    • Spark plug having a plurality of center electrodes
    • 具有多个中心电极的火花塞
    • US07282845B2
    • 2007-10-16
    • US10986307
    • 2004-11-12
    • Hiromi Hiramatsu
    • Hiromi Hiramatsu
    • H01T13/48
    • H01T13/467H01T13/22
    • A spark plug according to the invention includes a tubular metal shell, a cylindrical insulator, a plurality of center electrodes, and a plurality of ground electrodes. The meal shell has an end portion in which a plurality of thick-walled portions and a plurality of thin-walled portions are formed. The insulator is fixed in the metal shell. The center electrodes each are retained within one of a plurality of axial bores in the insulator. The ground electrodes each are joined to one of the thick-walled portions to ensure sufficient strength of the ground electrodes. The thin-walled portions each have an inner surface that is outwardly recessed in an angular range including the intersection of the inner surface with a reference line, thereby securing sufficient air pocket size of the spark plug. Accordingly, the spark plug has a high capability to ignite the air-fuel mixture and sufficient strength of the ground electrodes.
    • 根据本发明的火花塞包括管状金属壳,圆柱形绝缘体,多个中心电极和多个接地电极。 餐壳具有端部,其中形成有多个厚壁部分和多个薄壁部分。 绝缘体固定在金属外壳中。 中心电极各自保持在绝缘体中的多个轴向孔中的一个中。 接地电极各自连接到一个厚壁部分,以确保接地电极具有足够的强度。 薄壁部分各自具有内表面,该内表面在包括内表面与参考线的交点的角度范围内向外凹陷,从而确保火花塞的足够的气囊尺寸。 因此,火花塞具有高的点燃空气 - 燃料混合物的能力和足够的接地电极强度。
    • 59. 发明授权
    • Combustion process parameter sensor
    • 燃烧过程参数传感器
    • US4413509A
    • 1983-11-08
    • US313359
    • 1981-10-20
    • Winfried MoserKlaus MullerFranz Rieger
    • Winfried MoserKlaus MullerFranz Rieger
    • G01J1/02F02B1/04F02B3/06F02B23/00G01L23/22H01T13/48G01M15/00
    • H01T13/48G01L23/22F02B1/04F02B3/06
    • To provide for simultaneous transmission of pressure signals and light signals from the combustion chamber (CC) of an internal combustion engine or, selectively, either one or the other of the pressure or light signals, independently, a spark plug-type housing (1, 2) has a glass plug (3) fitted therein, the end face of which at the side remote from the combustion chamber engaging a piezo-ceramic ring (4). The inner opening of the ring (4) transmits light from the glass plug or rod 3 to a light guide fiber cable (7) which, concentrically and insulated from each other, has a metal woven sleeve (10) placed thereabout, and an outer metallic jacket (12), the woven sleeve (10) being connected to a flanged ring (6, 6a) engaging one end face of the piezo-ceramic ring (4), the other end face being connected to the outer metallic sleeve (12) to provide a coaxial electrical signal output cable, with the inner portion thereof surrounding and forming a jacket for the light guide fiber cable (7).
    • 为了同时传输来自内燃机的燃烧室(CC)的压力信号和光信号,或独立地选择性地,一个或另一个压力或光信号,火花塞型壳体(1, 2)具有安装在其中的玻璃塞(3),其端面远离燃烧室的一侧与压电陶瓷环(4)接合。 环(4)的内部开口将来自玻璃塞或者杆3的光透射到光导纤维电缆(7),该光导纤维电缆彼此同心且绝缘,在其周围设有金属编织套筒(10) 金属护套(12),编织套筒(10)连接到接合压电陶瓷环(4)的一个端面的凸缘环(6,6a),另一个端面连接到外部金属套筒(12) )以提供同轴电信号输出电缆,其内部包围并形成用于光导纤维电缆(7)的护套。