Evaporated fuel leakage detector for use in automotive vehicle
    41.
    发明授权
    Evaporated fuel leakage detector for use in automotive vehicle 有权
    用于汽车的蒸发燃油泄漏检测器

    公开(公告)号:US07472583B2

    公开(公告)日:2009-01-06

    申请号:US11496489

    申请日:2006-08-01

    IPC分类号: G01M3/04

    摘要: A detector for detecting evaporated fuel leakage from a fuel tank is connected to the fuel tank through a canister for absorbing evaporated fuel. When an engine is not in operation, air in the fuel tank is sucked by a pump installed in the detector. If the pressure in the fuel tank decreases to a predetermined level, it is determined that the evaporated fuel leakage is within a permissible range. An orifice passage, formed in the detector, connecting a tank passage to a sensor passage communicating with a sensor chamber where a pressure sensor is disposed is slanted relative to the tank passage to shorten the passage distance up to the pressure sensor. Further, the orifice passage is connected to the sensor passage at an obtuse angle to reduce a pressure loss in the passages. Thus, the leakage of the evaporated fuel is surely detected while making the detector compact.

    摘要翻译: 用于检测来自燃料箱的蒸发燃料泄漏的检测器通过用于吸收蒸发燃料的罐连接到燃料箱。 当发动机不工作时,燃料箱中的空气被安装在检测器中的泵吸入。 如果燃料箱中的压力下降到预定水平,则确定蒸发燃料泄漏在容许范围内。 在检测器中形成的孔口通道将罐通道连接到与传感器室连通的传感器通道,其中设置有压力传感器的传感器通道相对于箱通道倾斜,以缩短通向压力传感器的通道距离。 此外,节流孔通道以钝角连接到传感器通道,以减少通道中的压力损失。 因此,当使检测器紧凑时,可靠地检测到蒸发燃料的泄漏。

    Position detecting system
    45.
    发明授权
    Position detecting system 失效
    位置检测系统

    公开(公告)号:US4589773A

    公开(公告)日:1986-05-20

    申请号:US333295

    申请日:1981-12-22

    CPC分类号: G01B11/026

    摘要: A position detecting system suitable for the position control of the surface of a workpiece mounted in an electron beam exposure system is disclosed which includes an electrically-driven light source, a first optical system for focusing a light beam from the light source on a workpiece, a position-controlling table for mounting thereon the workpiece, a second optical system for focusing light reflected from the workpiece on a predetermined image surface, a photodetector having a light receiving surface arranged on the image surface, and a negative feedback amplifier for controlling the light source by the output of the photodetector.

    摘要翻译: 公开了适用于安装在电子束曝光系统中的工件的表面的位置控制的位置检测系统,其包括电驱动光源,用于将来自光源的光束聚焦在工件上的第一光学系统, 用于在其上安装工件的位置控制台,用于将从工件反射的光聚焦在预定图像表面上的第二光学系统,具有布置在图像表面上的光接收表面的光电检测器,以及用于控制光的负反馈放大器 通过光电检测器的输出源。

    Apparatus for detecting astigmatic axes and measuring refractive powers
    46.
    发明授权
    Apparatus for detecting astigmatic axes and measuring refractive powers 失效
    用于检测散光轴和测量屈光力的装置

    公开(公告)号:US4293199A

    公开(公告)日:1981-10-06

    申请号:US960056

    申请日:1978-11-13

    IPC分类号: A61B3/10 A61B3/103 G01M11/02

    摘要: An apparatus for detecting astigmatic axes and measuring refractive powers such as the lens of a human eye. A disc has a first group of slits oriented in one direction and a second group of slits oriented perpendicular thereto. Each slit has a deflecting means with a direction of deflection perpendicular to the lengthwise direction of its slits for measuring the refractive power. The apparatus also has astigmatic axis detecting target means which can be used immediately prior to the refraction so that the refraction on each astigmatic axis can be measured before conditions change in the eye.

    摘要翻译: 用于检测散光轴并测量折射力的装置,例如人眼的透镜。 盘具有沿一个方向定向的第一组狭缝和与其垂直定向的第二组狭缝。 每个狭缝具有偏转方向,其偏转方向垂直于其狭缝的长度方向,用于测量折射力。 该装置还具有散光轴检测目标装置,其可以在折射之前立即使用,使得可以在眼睛中的条件改变之前测量每个散光轴上的折射。

    Electro-optical light shutter device
    47.
    发明授权
    Electro-optical light shutter device 失效
    电光光闸装置

    公开(公告)号:US4154505A

    公开(公告)日:1979-05-15

    申请号:US778109

    申请日:1977-03-16

    CPC分类号: G02F1/055

    摘要: In an electro-optical light shutter device using a solid-solution ceramic material for alternate transmission and interception of light, a first voltage is applied to the solid-solution ceramic material in the operating (open) position of the shutter, and a second voltage of polarity opposite to that of the first voltage and having an absolute value smaller than that of the first voltage is applied to the solid-solution ceramic material in the non-operating (closed) position of the shutter. The solid-solution ceramic material has a composition in which a ferroelectric phase and a non-ferroelectric phase adjoin each other through a morphotropic phase boundary.

    摘要翻译: 在使用固溶陶瓷材料用于交替传输和截取光的电光光闸装置中,在快门的操作(打开)位置中将固体陶瓷材料施加第一电压,并且将第二电压 极性与第一电压的极性相反,并且具有比第一电压的绝对值小的绝对值施加到快门的非操作(关闭)位置的固溶陶瓷材料。 固溶陶瓷材料具有其中铁电相和非铁电相通过相位相边界彼此连接的组成。

    Stereoscopic measuring apparatus
    48.
    发明授权
    Stereoscopic measuring apparatus 失效
    立体测量装置

    公开(公告)号:US4039829A

    公开(公告)日:1977-08-02

    申请号:US686298

    申请日:1976-05-14

    摘要: Apparatus capable of tridimensionally measuring the distance between two arbitrary points on the surface of a sample is disclosed. In apparatus wherein the surface of the sample to be observed is scanned with an energized beam, wherein a secondary radiation emitted from the sample is detected and wherein a sample image is displayed by making the detected signal a video signal, two sample images obtained by changing-over the incident angle of the beam on the sample surface are displayed, whereby the stereoscopic viewing of the sample surface is enabled. In this invention, there is added means for superposing and displaying marks at two positions of both the sample images as correspond to two arbitrary points on the sample surface and for automatically calculating the tridimensional distance between the two points on the sample surface on the basis of positioning signals of the marks.

    Method of manufacturing triglycine series ferroelectric crystals
    49.
    发明授权
    Method of manufacturing triglycine series ferroelectric crystals 失效
    制备三元系列铁电晶体的方法

    公开(公告)号:US3953503A

    公开(公告)日:1976-04-27

    申请号:US329193

    申请日:1973-02-02

    IPC分类号: C07C101/06

    摘要: A method of manufacturing large ferroelectric crystals having desirable uniform characteristics throughout the crystal from heterogeneous ferroelectric crystals in which only natural faces having the lowest surface energy are allowed to grow while preventing other faces from growing, or the heterogeneous ferroelectric crystals are subjected to a heat treatment so that the entire crystal comes to have the desirable characteristics.

    摘要翻译: 一种制造大型铁电晶体的方法,其具有在异质铁电晶体的整个晶体中具有期望的均匀特性,其中仅允许具有最低表面能的天然面生长,同时防止其它面生长,或异质铁电晶体经受热处理 使得整个晶体具有期望的特性。