Liquid crystal composition and liquid crystal light modulating device

    公开(公告)号:US06348961B1

    公开(公告)日:2002-02-19

    申请号:US09370427

    申请日:1999-08-09

    IPC分类号: G02F113

    摘要: A reflective type liquid crystal display which has a liquid crystal composition exhibiting a cholesteric phase in a room temperature and a columnar structure between substrates with ITO electrodes thereon. The liquid crystal composition is a chiral nematic liquid crystal composition which is produced by adding a chiral agent at a ratio within a range from 10 wt % to 45 wt % to nematic liquid crystal which contains a nematic liquid crystal component with a polar group at not less than 25 wt % and of which transition temperature to isotropic phase is within a range from 70° C. to 150° C. The anisotropy of refractive index of the liquid crystal composition is 0.10 to 0.22, and the anisotropy of dielectric constant is 5 to 30.

    Organopolysiloxane
    43.
    发明授权
    Organopolysiloxane 失效
    有机聚硅氧烷

    公开(公告)号:US5464917A

    公开(公告)日:1995-11-07

    申请号:US282490

    申请日:1994-08-01

    IPC分类号: C08G77/24 C08G77/08

    CPC分类号: C08G77/24

    摘要: A straight-chain organopolysiloxane represented by the general formula: ##STR1## wherein R.sup.1 represents a monovalent hydrocarbon group, R.sup.2 represents a bivalent organic group, Rf represents a perfluoroalkyl ether group or a perfluoroalkyl group, X represents a hydrogen atom or an organosilyl group, and n is an integer of 15 to 4,000 and having a content of cyclic polysiloxanes with a molecular weight of 3,000 or below of 50 ppm or below. This organopolysiloxane is novel in that the content of cyclic siloxanes with a molecular weight of 3,000 or below is only 50 ppm or below and the organopolysiloxane can obviate contact failure due to volatilization of components or surrounding contamination due to bleeding when used as materials in the field of electricity and electronics or as building materials.

    摘要翻译: 由以下通式表示的直链有机聚硅氧烷:其中R1表示一价烃基,R2表示二价有机基团,Rf表示全氟烷基醚基或全氟烷基,X表示氢原子或有机甲硅烷基, n为15〜4000的整数,分子量为3000以下的环状聚硅氧烷的含量为50ppm以下。 该有机聚硅氧烷是新颖的,因为分子量为3,000以下的环状硅氧烷的含量仅为50ppm以下,有机聚硅氧烷可以消除由于挥发成分引起的接触不良或当作为本领域的材料使用时出现渗出的周围污染 电力电子或建筑材料。

    Device for determining deterioration of a catalytic converter for an
engine
    45.
    发明授权
    Device for determining deterioration of a catalytic converter for an engine 失效
    用于确定用于发动机的催化转化器的劣化的装置

    公开(公告)号:US5303548A

    公开(公告)日:1994-04-19

    申请号:US957037

    申请日:1992-10-06

    摘要: A device for determining deterioration of a catalytic converter for an engine equipped with a catalytic converter disposed in the exhaust passage and upstream and downstream air-fuel ratio sensors disposed in the exhaust passage upstream and downstream of the catalytic converter, respectively, wherein the device calculates the area surrounded by the output response curve of the downstream air-fuel ratio sensor and a predetermined reference value line, the device determining whether or not the catalyst is deteriorated in accordance with the area calculated when the output of downstream air-fuel ratio sensor stays on a rich side or lean side air-fuel ratio for more than a predetermined time during feedback control of air-fuel ratio by the output of upstream air-fuel ratio sensor.

    摘要翻译: 一种用于确定用于配备有设置在排气通道中的催化转化器的发动机的催化转化器和设置在催化转化器的上游和下游的排气通道中的上游和下游空燃比传感器的劣化的装置,其中该装置计算 由下游空燃比传感器的输出响应曲线包围的区域和预定的基准值线,该装置根据当下游空燃比传感器的输出停留时计算的面积来判定催化剂是否劣化 在上游空燃比传感器的输出的空燃比的反馈控制中,在浓侧或贫侧空燃比超过预定时间。

    Apparatus for controlling ignition timing in an internal combustion
engine
    47.
    发明授权
    Apparatus for controlling ignition timing in an internal combustion engine 失效
    用于控制内燃机中点火正时的装置

    公开(公告)号:US4725955A

    公开(公告)日:1988-02-16

    申请号:US730582

    申请日:1985-05-06

    IPC分类号: F02D41/14 F02P5/15 F02M51/00

    摘要: Disclosed is an engine having an air-fuel ratio control apparatus for obtaining various air-fuel ratios, the range of which is between the stoichiometric air-fuel ratio or lower than that ratio and the high air-fuel ratio providing a very lean air-fuel mixture. A plurality of ignition timing maps is provided, these maps having a respective order of priority determined by the air-fuel ratio. During operation of the engine, parameters substantially related to the air-fuel ratio ranges are detected, and a map having the highest order of priority is selected from the maps which meet the engine parameters. The ignition timing is calculated from the selected map.

    摘要翻译: 公开了一种具有空燃比控制装置的发动机,其用于获得各种空燃比,其范围在理论空燃比或低于该比之间,高空燃比提供非常稀薄的空气 - 燃料混合物 提供了多个点火正时图,这些图具有由空燃比确定的各自的优先顺序。 在发动机运转期间,检测与空燃比范围基本相关的参数,并且从满足发动机参数的图中选择具有最高优先级顺序的地图。 从所选地图计算点火正时。

    Method of producing oil seal
    48.
    发明授权
    Method of producing oil seal 失效
    生产油封的方法

    公开(公告)号:US4723350A

    公开(公告)日:1988-02-09

    申请号:US885653

    申请日:1986-07-15

    摘要: A method of producing an oil seal comprises the following steps: a slicing step in which a seal ring is sliced from an end of a tubular billet of a resin material in a predetermined axial thickness; a fixing step in which the radially outer portion of the seal ring is fixed in the support member; and a bending-out/thread-forming step in which the radially inner portion of the seal ring is bent out of the plane of the radially outer portion of the seal ring thereby forming a tubular seal lip, and sequentially after forming of this seal lip, a screw thread is formed on the inner peripheral surface of the tubular seal lip. The fixing step is conducted by a press having an upper die and a lower die, in which the seal ring is fixed in the support member. The bending-out/thread-forming step is conducted by the press in which the radially inner portion of the seal ring is deformed into the tubular seal lip, and a screw thread is formed on the inner peripheral surface of the tubular seal lip by means of a mandrel having a tap. The bending-out/thread-forming step may be conducted in advance of the fixing step.

    摘要翻译: 一种油封的制造方法,其特征在于,包括以下步骤:从预定轴向厚度的树脂材料的筒状坯料的端部切断密封环的切片工序; 固定步骤,其中所述密封环的径向外部部分固定在所述支撑构件中; 以及弯曲/螺纹形成步骤,其中密封环的径向内部部分从密封环的径向外部部分的平面弯曲,从而形成管状密封唇缘,并且在形成该密封唇之后依次 在管状密封唇的内周面形成螺纹。 定影步骤通过具有上模和下模的压力进行,其中密封环固定在支撑构件中。 弯曲/螺纹成形步骤由密封环的径向内部变形成管状密封唇的压力进行,并且通过装置在管状密封唇的内周面上形成螺纹 具有水龙头的心轴。 弯曲/成纱步骤可以在定影步骤之前进行。

    Method and apparatus for controlling air-fuel ratio in internal
combustion engine
    49.
    发明授权
    Method and apparatus for controlling air-fuel ratio in internal combustion engine 失效
    用于控制内燃机空燃比的方法和装置

    公开(公告)号:US4719888A

    公开(公告)日:1988-01-19

    申请号:US731524

    申请日:1985-05-07

    CPC分类号: F02D41/149 F02D41/1406

    摘要: In an internal combustion engine, when the opening of a throttle valve is smaller than a relatively small definite value, the feedback of the air-fuel ratio of the engine is controlled so that the air-fuel ratio is brought close to a first target air-fuel ratio. When the opening of the throttle valve is equal to or larger than a relatively small definite value and is smaller than a relatively large definite value, the feedback of the air-fuel ratio of the engine is controlled so that the air-fuel ratio is brought close to a second target air-fuel ratio on the rich side with respect to the first target air-fuel ratio. Further, when the opening of the throttle valve is equal to or larger than the relatively large definite value, the air-fuel ratio of the engine is controlled to be a power fuel increment air-fuel ratio.

    摘要翻译: 在内燃机中,当节流阀的开度小于相对较小的定值时,控制发动机的空燃比的反馈,使空燃比接近第一目标空气 - 燃料比。 当节流阀的开度等于或大于相对较小的确定值并且小于相对较大的确定值时,控制发动机的空燃比的反馈,从而使空燃比 相对于第一目标空燃比在浓侧接近第二目标空燃比。 此外,当节流阀的开度等于或大于相对较大的定值时,发动机的空燃比被控制为动力燃料增量空燃比。

    Apparatus for controlling idling speed in internal combustion engine
having two bypass air passages
    50.
    发明授权
    Apparatus for controlling idling speed in internal combustion engine having two bypass air passages 失效
    用于控制具有两个旁路空气通道的内燃机中的空转速度的装置

    公开(公告)号:US4617890A

    公开(公告)日:1986-10-21

    申请号:US749089

    申请日:1985-06-26

    CPC分类号: F02D31/005

    摘要: In an internal combustion engine having two bypass air passages for controlling the idling speed, one (first) of the bypass air passages is controlled in accordance with the engine speed, and the other (second) is controlled in accordance with the ON and OFF state of an electrical load such as an air conditioner. When the electrical load is in the ON state, the first bypass air passage is not closed. Also, before a predetermined time period passes after the electrical load is changed from the ON state to the OFF state, the first bypass air passage is not closed.

    摘要翻译: 在具有用于控制怠速的两个旁路空气通道的内燃机中,根据发动机转速控制一个(第一)旁通空气通道,另一个(第二)根据ON和OFF状态被控制 诸如空调的电负载。 当电气负载处于接通状态时,第一旁通空气通路未闭合。 此外,在电负载从接通状态变为断开状态之前经过预定时间段之前,第一旁路空气通路不关闭。