Fuel injector with a trimmable heater and an increased heater contact area
    1.
    发明授权
    Fuel injector with a trimmable heater and an increased heater contact area 有权
    带可调节加热器的燃油喷射器和增加的加热器接触面积

    公开(公告)号:US09291136B2

    公开(公告)日:2016-03-22

    申请号:US14104144

    申请日:2013-12-12

    CPC classification number: F02M53/06

    Abstract: A fuel injector wherein a cylindrical surface supports an electrical heating structure covering 360° or almost 360° of the surface for heating fuel. The structure comprises a first dielectric layer adhered to the surface; a thick film resistance heating element; a second dielectric layer; spaced-apart first and second conductor pads, wherein the first conductor pad is disposed in contact with a dielectric layer and a first end of the heating element, and wherein the second conductor pad is disposed in contact with a dielectric layer and a second end of the heating element. Another dielectric layer may be disposed over the preceding layers and the first and second conductor pads and having first and second windows formed therein for access to the first and second conductor pads. The resistance heating element may selectively be trimmed by overprinting in a pattern one or more times to improve the uniformity of heating.

    Abstract translation: 一种燃料喷射器,其中圆柱形表面支撑覆盖表面360°或几乎360°以加热燃料的电加热结构。 该结构包括附着在该表面上的第一介电层; 厚膜电阻加热元件; 第二电介质层; 间隔开的第一和第二导体焊盘,其中第一导体焊盘设置成与电介质层和加热元件的第一端接触,并且其中第二导体焊盘设置成与电介质层接触,第二导体焊盘的第二端 加热元件。 另外的电介质层可以设置在先前的层和第一和第二导体焊盘之上,并且具有形成在其中的第一和第二窗口用于接近第一和第二导体焊盘。 电阻加热元件可以通过以图案重叠一次或多次来选择性地修整,以提高加热的均匀性。

    Method for controlling a fuel heater
    2.
    发明授权
    Method for controlling a fuel heater 有权
    燃料加热器控制方法

    公开(公告)号:US09587604B2

    公开(公告)日:2017-03-07

    申请号:US14219295

    申请日:2014-03-19

    Abstract: A method for controlling electrical power applied to a fuel heater includes applying power to the heater, determining a value for an electrical parameter that varies as a function of the temperature of the heater, and determining a value representative of the time rate of change of the electrical parameter. The method further includes determining the value of the electrical parameter corresponding to a change in the time rate of change of the electrical parameter, wherein the change in the time rate of change of the electrical parameter exceeds a predetermined threshold, and controlling electrical power applied to the heater so as to maintain the temperature of the heater about a target temperature that is a predetermined level below the heater temperature at the time at which said change in the time rate of change of the electrical parameter exceeds the predetermined threshold.

    Abstract translation: 用于控制施加到燃料加热器的电力的方法包括向加热器施加电力,确定作为加热器的温度的函数而变化的电参数的值,以及确定代表加热器的时间变化率的值 电参数。 该方法还包括确定与参数的变化时间变化相对应的电参数的值,其中电参数的时间变化率的变化超过预定阈值,并且控制施加到 所述加热器使所述加热器的温度保持在所述电参数的变化时间变化超过预定阈值的时刻的加热器温度以下的预定水平的目标温度。

    Heated fuel injector
    3.
    发明授权
    Heated fuel injector 有权
    加热燃油喷射器

    公开(公告)号:US09476393B2

    公开(公告)日:2016-10-25

    申请号:US13846982

    申请日:2013-03-19

    CPC classification number: F02M53/06 F23D11/10

    Abstract: A heated fuel injector for supplying fuel to a fuel consuming device includes a fuel inlet for receiving fuel, a fuel outlet for dispensing fuel from the fuel injector, and a fuel injector body extending along an axis and fluidly connecting the fuel inlet to the fuel outlet such that fuel flows within the injector body. A cylindrical heating element radially surrounds the fuel injector body and operates to heat fuel flowing through the fuel injector body. An annular space is defined between the heating element and the fuel injector body sufficiently large to accommodate thermally caused radial differential expansion between the fuel injector body and the heating element. A conductive material fills the annular space and has a melting point sufficiently low to be a liquid as the heating element operates to thereby substantially prevent transfer of mechanical stress to the heating element due to the radial differential expansion.

    Abstract translation: 用于向燃料消耗装置供应燃料的加热燃料喷射器包括用于接收燃料的燃料入口,用于从燃料喷射器分配燃料的燃料出口和沿轴线延伸的燃料喷射器主体,并将燃料入口流体连接到燃料出口 使得燃料在喷射器主体内流动。 圆柱形加热元件径向地围绕燃料喷射器主体并且操作以加热流过燃料喷射器主体的燃料。 在加热元件和燃料喷射器主体之间限定一个足够大的环形空间以适应燃料喷射器主体和加热元件之间的热引起的径向差动膨胀。 当加热元件操作时,导电材料填充环形空间并且具有足够低的熔点以成为液体,从而基本上防止由于径向差分膨胀而向加热元件传递机械应力。

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