Discharge lamp device having a light distribution compound lens
    2.
    发明授权
    Discharge lamp device having a light distribution compound lens 失效
    具有配光复合透镜的放电灯装置

    公开(公告)号:US6007210A

    公开(公告)日:1999-12-28

    申请号:US713964

    申请日:1996-09-12

    摘要: In a discharge lamp device, the electric power supplied to a discharge lamp is controlled in order of first to fourth control regions from the start of lighting of the discharge lamp. In the first control region, the lamp current is held constant until the lamp voltage reaches a first voltage value. In the second control region, the lamp current is reduced so as to have a correlation with a first time constant curve for a constant time after the lamp voltage reaches the first voltage value. In the third control region, the lamp current is reduced so as to have a correlation with a second time constant curve after a lapse of the constant time. The second time constant curve differs from the first time constant curve. In the fourth control region, a control value of the electric power supplied to the discharge lamp is free of a function of a lapse of time from the start of lighting of the discharge lamp, but is a function of at least the lamp voltage and the lamp current, and the electric power supplied to the discharge lamp is controlled by that control value. Through such a control, luminous flux is built up in a short time from the start of the lighting and an occurrence of overshoot or undershoot is minimized to a possible extent.

    摘要翻译: 在放电灯装置中,从放电灯的点亮开始,向放电灯提供的电力按照第一至第四控制区域的顺序进行控制。 在第一控制区域中,灯电流保持恒定直到灯电压达到第一电压值。 在第二控制区域中,在灯电压达到第一电压值之后,灯电流减小,以便与第一时间常数曲线相关一段恒定的时间。 在第三控制区域中,经过恒定时间后,灯电流减小,使其与第二时间常数曲线相关。 第二时间常数曲线与第一时间常数曲线不同。 在第四控制区域中,提供给放电灯的电力的控制值没有从放电灯的点亮开始经过的时间的功能,而是至少是灯电压和 灯电流,并且通过该控制值控制提供给放电灯的电力。 通过这样的控制,在从点亮开始的短时间内建立光通量,并且可能发生过冲或下冲的发生。

    Lamp control circuit having a V-I converter with slopes of different
magnitudes and a second resistor connected in series with a first such
that the second senses the output current of the V-I converter
    3.
    发明授权
    Lamp control circuit having a V-I converter with slopes of different magnitudes and a second resistor connected in series with a first such that the second senses the output current of the V-I converter 失效
    灯控制电路具有具有不同幅度的斜率的V-I转换器和与第一电阻器串联连接的第二电阻器,使得第二电阻器感测到V-I转换器的输出电流

    公开(公告)号:US5654611A

    公开(公告)日:1997-08-05

    申请号:US568564

    申请日:1995-12-07

    摘要: A lamp current i.sub.L flows through a first resistor. Electric current I, which is the output current of a voltage-current converter which converts a lamp voltage V.sub.L to a lamp current I, flows through a second resistor. Feedback control is executed to make V.sub.-, which is the voltage of one terminal of the second resistor, equal a reference voltage V.sub.ref. The power applied to the lamp during start-up is controlled to be the same as the power applied to the lamp during its stable lighting for a predetermined lamp voltage range. Using the following two linear equations, the electric current I is set as I=aV.sub.L +b (where a and b are positive constants) when the lamp voltage V.sub.L is lower than a first predetermined voltage V.sub.a which is less than the lamp voltage during the normal stable lighting period of the lamp, and as I=cV.sub.L +d (where c and d are positive constants with c b), when the lamp voltage V.sub.L is greater than or equal to the first predetermined value V.sub.a.

    摘要翻译: 灯电流iL流过第一电阻器。 将灯电压VL转换为灯电流I的电压 - 电流转换器的输出电流I流过第二电阻。 执行反馈控制,使V-(其是第二电阻器的一个端子的电压)等于参考电压Vref。 在启动期间施加到灯的功率被控制为与在预定灯电压范围内的稳定点亮期间施加到灯的功率相同。 使用以下两个线性方程式,当灯电压VL低于第一预定电压Va时,电流I被设置为I = aVL + b(其中a和b是正常数),该第一预定电压Va小于在 当灯电压VL大于或等于第一预定值Va时,I = cVL + d(其中c和d是具有c b)的正常数)。

    Surge generator having a low voltage transformer winding connected to a
high voltage winding
    4.
    发明授权
    Surge generator having a low voltage transformer winding connected to a high voltage winding 失效
    具有连接到高压绕组的低压变压器绕组的浪涌发生器

    公开(公告)号:US5606227A

    公开(公告)日:1997-02-25

    申请号:US538044

    申请日:1995-10-02

    摘要: A semiconductor switching element is connected to the first winding of a transformer. A smoothing capacitor is connected to the second winding of the transformer through a rectifier diode. The charging voltage Va of this smoothing capacitor serves as the applied voltage of a discharge lamp. When the discharge lamp is lighting, the second winding serves as a power source for supplying power to the discharge lamp. A capacitor is connected to the third winding of the transformer through a rectifier diode. The charging voltage of this capacitor serves as the applied voltage of a discharge tube. When the discharge tube discharges, a high-voltage starting pulse is provided to the secondary winding of a high-voltage coil, thereby rendering the discharge lamp ready for lighting. Therefore, when the discharge lamp is starting, the third winding serves as a power source for supplying starting power to the discharge lamp.

    摘要翻译: 半导体开关元件连接到变压器的第一绕组。 平滑电容器通过整流二极管连接到变压器的第二绕组。 该平滑电容器的充电电压Va用作放电灯的施加电压。 当放电灯点亮时,第二绕组用作向放电灯供电的电源。 电容器通过整流二极管连接到变压器的第三绕组。 该电容器的充电电压用作放电管的施加电压。 当放电管放电时,向高压线圈的次级绕组提供高电压启动脉冲,从而使放电灯准备好点亮。 因此,当放电灯起动时,第三绕组作为向放电灯提供启动电力的电源。

    Electric discharge lamp device
    8.
    再颁专利
    Electric discharge lamp device 有权
    放电灯装置

    公开(公告)号:USRE42141E1

    公开(公告)日:2011-02-15

    申请号:US11699569

    申请日:2007-01-30

    IPC分类号: H05B37/00

    CPC分类号: H05B41/386 H05B41/2883

    摘要: An electric discharge lamp device has a lighting start voltage storage circuit for storing a lamp voltage immediately after the start of lighting of a lamp, and a change detection circuit for detecting a change in the lamp voltage by subtracting the lamp voltage immediately after the start of lighting of the lamp from the lamp voltage detected currently. The electric power supplied to the lamp is controlled based upon the change in the lamp voltage.

    摘要翻译: 放电灯装置具有用于存储灯开始后的灯电压的点亮开始电压存储电路,以及变更检测电路,用于通过在开始后立即减去灯电压来检测灯电压的变化 目前灯具电压从灯电压检测到。 基于灯电压的变化来控制提供给灯的电力。

    Tractor
    9.
    发明授权
    Tractor 失效
    拖拉机

    公开(公告)号:US07758680B2

    公开(公告)日:2010-07-20

    申请号:US11885678

    申请日:2006-01-04

    IPC分类号: B01D46/00

    CPC分类号: B62D25/10 B60K11/02 B60K13/02

    摘要: The present invention provides a tractor in which necessity of maintenance of a precleaner can be checked without opening a bonnet every time. In a tractor in which the outside air which is purified through a precleaner is further purified through an air cleaner before the outside air is supplied to an engine, a radiator is arranged in front of the engine, the precleaner is arranged in front of the radiator, and the engine, the radiator and the precleaner are covered with a bonnet, the precleaner is arranged such that the interior of at least a dust collecting/storing portion of the precleaner is viewable from the outside in a see-through manner, and the bonnet includes a viewing portion through which the interior of the dust collecting/storing section is viewable.

    摘要翻译: 本发明提供一种拖拉机,其中可以在每次都不打开发动机罩的情况下检查必要的维护预清洗器。 在将外部空气供给发动机之前,通过预净化器净化的外部空气通过空气净化器进一步净化的拖拉机中,散热器布置在发动机前方,预排气器布置在散热器前面 发动机,散热器和预清洗器被罩盖盖住,预清洗器被布置成使得至少预清洗器的集尘/存储部分的内部可以以透视的方式从外部观看,并且 发动机罩包括观察部分,灰尘收集/收集部分的内部可通过该观察部分观察。

    Tractor
    10.
    发明授权
    Tractor 失效
    拖拉机

    公开(公告)号:US07523789B2

    公开(公告)日:2009-04-28

    申请号:US10594346

    申请日:2005-03-25

    IPC分类号: A01B59/043

    CPC分类号: A01B59/067 B62D49/02

    摘要: A tractor of the present invention can reduce a manufacturing cost of a lift arm support body. The tractor is configured such that a lift arm is mounted on an upper portion of a transmission casing by way of a lift arm support body, the lift arm is hydraulically controllable by a hydraulic control valve by way of a hydraulic circuit body, and the hydraulic circuit body and the hydraulic control valve are fixed to the transmission casing as bodies separate from a lift arm support body.

    摘要翻译: 本发明的拖拉机可以降低提升臂支撑体的制造成本。 拖拉机构造成使得提升臂通过提升臂支撑体安装在变速器壳体的上部上,提升臂由液压回路体由液压控制阀液压控制,液压 电路体和液压控制阀作为与提升臂支撑体分离的主体固定到变速器壳体。