公开(公告)号：US08230728B2

公开(公告)日：2012-07-31

申请号：US12143901

申请日：2008-06-23

申请人： Shinji Wakabayashi ,  Hiroshi Nakamura ,  Akikazu Uchida ,  Yukinobu Kajita

发明人： Shinji Wakabayashi ,  Hiroshi Nakamura ,  Akikazu Uchida ,  Yukinobu Kajita

IPC分类号： G01M15/00

CPC分类号： G01N9/36 ,  G01N9/00 ,  G01N27/221 ,  G01N33/2852

摘要： An alcohol density sensor for detecting an alcohol density in mixture fuel composed of petroleum-fuel and alcohol is installed in a fuel tank of an automotive vehicle. The alcohol density sensor includes a pair of electrodes immersed in the mixture fuel and a conductor portion for connecting the electrodes to a control unit having a circuit board. The conductor portion is composed of a first conductor portion integrally formed with the electrode and a second conductor portion connected to the first conductor portion. The first conductor portion is led out of a casing containing the electrodes and liquid-tightly sealed at a first through-hole formed in the casing. The second conductor portion is led out of the fuel tank through a second through-hole formed in the fuel tank. Since the first through-hole is sufficiently sealed to prevent pressurized mixture fuel in the casing from leaking into an inner space of the fuel tank, sealing of the second through-hole can be simplified.

摘要翻译： 用于检测由石油 - 燃料和醇组成的混合燃料中的醇密度的酒精密度传感器安装在机动车辆的燃料箱中。 醇浓度传感器包括浸在混合燃料中的一对电极和用于将电极连接到具有电路板的控制单元的导体部分。 导体部分由与电极整体形成的第一导体部分和连接到第一导体部分的第二导体部分组成。 第一导体部分从包含电极的壳体引出并且在形成于壳体中的第一通孔处被液密密封。 第二导体部分通过形成在燃料箱中的第二通孔从燃料箱引出。 由于第一通孔被充分密封以防止壳体内的加压混合燃料泄漏到燃料箱的内部空间中，所以能够简化第二通孔的密封。

公开(公告)号：US07893688B2

公开(公告)日：2011-02-22

申请号：US12181783

申请日：2008-07-29

申请人： Takashi Kawashima ,  Kimio Uchida ,  Yukinobu Kajita ,  Tatsuya Kitanaka ,  Koichiro Matsumoto ,  Yoshiyuki Kono ,  Hisataka Okado ,  Hiroyuki Shintani

发明人： Takashi Kawashima ,  Kimio Uchida ,  Yukinobu Kajita ,  Tatsuya Kitanaka ,  Koichiro Matsumoto ,  Yoshiyuki Kono ,  Hisataka Okado ,  Hiroyuki Shintani

IPC分类号： G01B7/14

CPC分类号： G01D5/145

摘要： A position sensor includes a longitudinally extending permanent magnet member at least two longitudinally extending arc-shaped projecting elements respectively projecting from the opposite ends toward the inside space to confront each other at a distance and a pair of compatible main magnetic sensors disposed in the inside space along the longitudinal axis at an interval so as to generate a pair of output signals when the permanent magnet member shifts along the longitudinal axis. The opposite ends of the permanent magnet member are configured to surround a common inside space and polarized to have opposite magnetic poles so as to provide in the inside space a magnetic field whose magnetic flux density becomes a maximum at a longitudinal center of the inside space and gradually becomes smaller as a position of the inside space shifts from the longitudinal center along a longitudinal axis of the permanent magnet members. The arc-shaped projecting elements are arranged so that the magnetic flux density and each of the output signals can be expressed by a cosine of a shift value from the longitudinal center, and the interval is ¼ of the cycle of the cosine.

摘要翻译： 位置传感器包括纵向延伸的永磁体构件，其至少两个纵向延伸的弧形突起元件，其分别从相对端向内部空间突出以相隔一定距离，并且一对相容的主磁传感器设置在内部空间 沿着纵轴以一定的间隔，以便当永磁体部件沿着纵向轴线移动时产生一对输出信号。 永久磁铁构件的相对端构成为包围共同的内部空间并且被极化以具有相反的磁极，以便在内部空间中提供在内部空间的纵向中心处的磁通密度变为最大的磁场，以及 随着内部空间的位置沿纵向中心沿永久磁铁构件的纵向轴线偏移，逐渐变小。 弧形突出元件被布置成使得磁通密度和每个输出信号可以由来自纵向中心的偏移值的余弦来表示，并且间隔是余弦周期的1/4。

公开(公告)号：US20090107215A1

公开(公告)日：2009-04-30

申请号：US12143901

申请日：2008-06-23

申请人： Shinji Wakabayashi ,  Hiroshi Nakamura ,  Akikazu Uchida ,  Yukinobu Kajita

发明人： Shinji Wakabayashi ,  Hiroshi Nakamura ,  Akikazu Uchida ,  Yukinobu Kajita

IPC分类号： G01N9/00

CPC分类号： G01N9/36 ,  G01N9/00 ,  G01N27/221 ,  G01N33/2852

摘要： An alcohol density sensor for detecting an alcohol density in mixture fuel composed of petroleum-fuel and alcohol is installed in a fuel tank of an automotive vehicle. The alcohol density sensor includes a pair of electrodes immersed in the mixture fuel and a conductor portion for connecting the electrodes to a control unit having a circuit board. The conductor portion is composed of a first conductor portion integrally formed with the electrode and a second conductor portion connected to the first conductor portion. The first conductor portion is led out of a casing containing the electrodes and liquid-tightly sealed at a first through-hole formed in the casing. The second conductor portion is led out of the fuel tank through a second through-hole formed in the fuel tank. Since the first through-hole is sufficiently sealed to prevent pressurized mixture fuel in the casing from leaking into an inner space of the fuel tank, sealing of the second through-hole can be simplified.

摘要翻译： 用于检测由石油 - 燃料和醇组成的混合燃料中的醇密度的酒精密度传感器安装在机动车辆的燃料箱中。 醇浓度传感器包括浸在混合燃料中的一对电极和用于将电极连接到具有电路板的控制单元的导体部分。 导体部分由与电极整体形成的第一导体部分和连接到第一导体部分的第二导体部分组成。 第一导体部分从包含电极的壳体引出并且在形成于壳体中的第一通孔处被液密密封。 第二导体部分通过形成在燃料箱中的第二通孔从燃料箱引出。 由于第一通孔被充分密封以防止壳体内的加压混合燃料泄漏到燃料箱的内部空间中，所以能够简化第二通孔的密封。

公开(公告)号：US20090033315A1

公开(公告)日：2009-02-05

申请号：US12181783

申请日：2008-07-29

申请人： Takashi Kawashima ,  Kimio Uchida ,  Yukinobu Kajita ,  Tatsuya Kitanaka ,  Koichiro Matsumoto ,  Yoshiyuki Kono ,  Hisataka Okado ,  Hiroyuki Shintani

发明人： Takashi Kawashima ,  Kimio Uchida ,  Yukinobu Kajita ,  Tatsuya Kitanaka ,  Koichiro Matsumoto ,  Yoshiyuki Kono ,  Hisataka Okado ,  Hiroyuki Shintani

IPC分类号： G01B7/00

CPC分类号： G01D5/145

摘要： A position sensor includes a longitudinally extending permanent magnet member at least two longitudinally extending arc-shaped projecting elements respectively projecting from the opposite ends toward the inside space to confront each other at a distance and a pair of compatible main magnetic sensors disposed in the inside space along the longitudinal axis at an interval so as to generate a pair of output signals when the permanent magnet member shifts along the longitudinal axis. The opposite ends of the permanent magnet member are configured to surround a common inside space and polarized to have opposite magnetic poles so as to provide in the inside space a magnetic field whose magnetic flux density becomes a maximum at a longitudinal center of the inside space and gradually becomes smaller as a position of the inside space shifts from the longitudinal center along a longitudinal axis of the permanent magnet members. The arc-shaped projecting elements are arranged so that the magnetic flux density and each of the output signals can be expressed by a cosine of a shift value from the longitudinal center, and the interval is ¼ of the cycle of the cosine.

摘要翻译： 位置传感器包括纵向延伸的永磁体构件，其至少两个纵向延伸的弧形突起元件，其分别从相对端向内部空间突出以相隔一定距离，并且一对相容的主磁传感器设置在内部空间 沿着纵轴以一定的间隔，以便当永磁体部件沿着纵向轴线移动时产生一对输出信号。 永久磁铁构件的相对端构成为包围共同的内部空间并且被极化以具有相反的磁极，以便在内部空间中提供在内部空间的纵向中心处的磁通密度变为最大的磁场，以及 随着内部空间的位置沿纵向中心沿永久磁铁构件的纵向轴线偏移，逐渐变小。 弧形突出元件被布置成使得磁通密度和每个输出信号可以由来自纵向中心的偏移值的余弦来表示，并且间隔是余弦周期的1/4。