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    • 25. 发明授权
    • Laser spark plug and method for operating same
    • 激光火花塞及其操作方法
    • US08789497B2
    • 2014-07-29
    • US13511324
    • 2010-09-23
    • Martin WeinrotterMartin AstnerPascal WoernerJuergen Raimann
    • Martin WeinrotterMartin AstnerPascal WoernerJuergen Raimann
    • F01P1/10
    • F02P23/04
    • A laser spark plug is described, in particular for an internal combustion engine of a motor vehicle, having a combustion chamber window situated in an end area facing the combustion chamber. Arrangement is provided for cooling a volume region present in the area of the combustion chamber window and/or a medium present in the volume region. The cooling arrangement has a cooling body which has material having a relatively great thermal conductivity, in particular having a thermal conductivity of approximately 90 Watts per Kelvin and meter at room temperature or more. The cooling body is designed essentially annularly. An inner diameter of the cooling body in the area of a front side facing the combustion chamber of the cooling body is smaller than an inner diameter of the cooling body in the area of a front side of the cooling body facing away from the combustion chamber.
    • 描述了一种激光火花塞,特别是用于机动车辆的内燃机,其具有位于面向燃烧室的端部区域中的燃烧室窗口。 提供了用于冷却存在于燃烧室窗口区域中的体积区域和/或存在于体积区域中的介质的布置。 冷却装置具有冷却体,该冷却体具有导热性相对较高的材料,特别是具有大约90瓦/开尔文的导热率和室温以上的仪表。 冷却体基本环形设计。 冷却体的面向冷却体的燃烧室的前方的区域内的冷却体的内径比冷却体的远离燃烧室的前方的区域内的冷却体的内径小。
    • 26. 发明申请
    • COOLING DEVICE FOR A LASER SPARK PLUG
    • 用于激光火花塞的冷却装置
    • US20130186361A1
    • 2013-07-25
    • US13811073
    • 2011-05-18
    • Karl-Heinz NuebelPascal WoernerJuergen RaimannRene HartkeMartin Weinrotter
    • Karl-Heinz NuebelPascal WoernerJuergen RaimannRene HartkeMartin Weinrotter
    • F02P23/04
    • F02P23/04F02P13/00H01S3/025H01S3/0405H01S3/042
    • A cooling device for a laser spark plug. The cooling has a radially inner first contact area which is developed to establish a thermal contact to a housing of the laser spark plug via at least one first radially inner contact surface. The cooling device also has a radially outer second contact area which is developed to establish a thermal contact to a heat sink, in particular to an inner wall of a spark plug hole receiving the laser spark plug, via at least one first radially outer contact surface. A connector is provided, which is developed to establish a thermal contact between the first contact area and the second contact area. The cooling device is developed at least in part elastically in order to allow for a relative movement in a generally radial direction between at least the first contact surface and the second contact surface.
    • 一种用于激光火花塞的冷却装置。 冷却具有径向内部的第一接触区域,其被展开以经由至少一个第一径向内部接触表面建立与激光火花塞的壳体的热接触。 冷却装置还具有径向外部的第二接触区域,其被开发成经由至少一个第一径向外部接触表面建立到散热器的热接触,特别是与接收激光火花塞的火花塞孔的内壁 。 提供了连接器,其被开发以在第一接触区域和第二接触区域之间建立热接触。 冷却装置至少部分地被弹性地展开,以便允许在至少第一接触表面和第二接触表面之间在大致径向上的相对运动。
    • 30. 发明授权
    • Laser-induced spark ignition for an internal combustion engine
    • 用于内燃机的激光火花点火
    • US09284939B2
    • 2016-03-15
    • US13699924
    • 2011-04-05
    • Pascal WoernerJuergen RaimannJoerg EngelhardtMartin Weinrotter
    • Pascal WoernerJuergen RaimannJoerg EngelhardtMartin Weinrotter
    • F02P23/04F02B17/00F02B23/10
    • F02P23/04F02B17/005F02B23/105F02P13/00Y02T10/125
    • A laser spark plug for an internal combustion engine includes at least one element for guiding, shaping and/or generating laser radiation, a combustion chamber window and a housing. The housing has, on the opposite side of the combustion chamber window from the element, an aperture for the passage of the laser radiation guided, shaped and/or generated by the element into a prechamber disposed at the end of the housing on the combustion chamber side. At least one overflow channel is provided for a fluid connection between an internal space of the prechamber and a combustion chamber surrounding the prechamber. When a fluid flows into the internal space of the prechamber through the overflow channel, a fluid flow is obtained that enters the interior of the aperture at a minimum angle ε, in particular measured with respect to the longitudinal axis of the laser spark plug, of 45°.
    • 用于内燃机的激光火花塞包括用于引导,成形和/或产生激光辐射的至少一个元件,燃烧室窗和壳体。 所述壳体在所述燃烧室窗口与所述元件相反的一侧具有用于将由所述元件引导,成形和/或产生的所述激光辐射通过的孔用于设置在所述壳体的所述燃烧室的端部处的预制室 侧。 提供至少一个溢流通道用于在预燃室的内部空间与围绕预燃室的燃烧室之间的流体连接。 当流体通过溢流通道流入预燃室的内部空间时,获得以最小角度进入孔径内部的流体流动,特别是相对于激光火花塞的纵向轴线测量, 45°。