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    • 51. 发明申请
    • Intake system for multi-cylinder engine
    • 多缸发动机进气系统
    • US20060037570A1
    • 2006-02-23
    • US11206294
    • 2005-08-18
    • Mitsuo HitomiNoriyuki IwataHiroshi Inatomi
    • Mitsuo HitomiNoriyuki IwataHiroshi Inatomi
    • F02M35/10F01L1/34
    • F02D13/0238F02B27/021F02B29/083F02D13/0219F02D13/0226Y02T10/146Y02T10/18
    • Disclosed is an intake system for a multi-cylinder engine, which comprises an impulse charging device adapted to have a valve function in association with an intake stroke in each of cylinders and at least in a term from the middle of an intake stroke to a compression stroke in the engine so as to generate a high pressure wave in each of the cylinders, engine-speed detection means for detecting an engine speed of the multi-cylinder engine, and valve timing control means operable to control an open timing of the impulse charging device and a valve-open timing of the valuable valve timing system, in accordance with a detection value of the engine-speed detection means, in such a manner as to advance the open timing of said impulse charging device and delay the open timing of each of the intake valves, as the multi-cylinder engine is operated in an higher engine-speed range.
    • 公开了一种用于多气缸发动机的进气系统,其包括脉冲充气装置,其适于在每个气缸中具有与进气冲程相关联的阀功能,并且至少在从进气冲程到压缩的中间 发动机中的行程,以便在每个气缸中产生高压波,用于检测多气缸发动机的发动机转速的发动机速度检测装置,以及用于控制脉冲充电的打开定时的气门正时控制装置 装置和有价值的气门正时系统的阀开启时间,以使发动机转速检测装置的检测值以推进所述脉冲充电装置的打开定时并延迟每个 的进气门,因为多缸发动机在较高的发动机转速范围内运转。
    • 53. 发明授权
    • Zoom finder of real image type and real image type zoom finder capable
of making magnification transition
    • 实际图像类型的缩放查找器和能够进行放大转换的真实图像类型缩放取景器
    • US5448400A
    • 1995-09-05
    • US44628
    • 1993-04-09
    • Syuichi KikuchiTakao YamaguchiNoriyuki IwataMasami Itoh
    • Syuichi KikuchiTakao YamaguchiNoriyuki IwataMasami Itoh
    • G02B13/18G02B15/16G02B15/173G02B23/14G02B15/14
    • G02B15/173G02B23/145
    • A zoom finder of a real image type has an objective lens having positive refracting power and an eyepiece having positive refracting power. The objective lens is constructed by first, second, third and fourth lens groups sequentially arranged from an object side. The first lens group has positive refracting power. The second lens group has negative refracting power. The third lens group has positive refracting power. The fourth lens group has positive refracting power. The zoom finder is constructed such that a real image is focused and formed by the objective lens between the fourth lens group and the eyepiece and is observed through the eyepiece. A magnification of the zoom finder is increased by moving the second lens group from the object side to an eyepiece side. A change in diopter caused by this increase in magnification is corrected by moving the fourth lens group. In accordance with the above structure, an entire length of the zoom finder is short and is not changed in a zooming operation. Further, the structure of a mechanical mechanism for displacing lenses in the zooming operation is simplified and no diopter of the zoom finder is changed in the zooming operation.
    • 实像图像的缩放取景器具有具有正折射力的物镜和具有正折射光焦度的目镜。 物镜由从物体侧依次布置的第一,第二,第三和第四透镜组构成。 第一透镜组具有正折射力。 第二透镜组具有负折射力。 第三透镜组具有正折射力。 第四透镜组具有正折射力。 变焦探测器被构造成使得实像由第四透镜组和目镜之间的物镜聚焦并形成并且通​​过目镜被观察。 通过将第二透镜组从物体侧移动到目镜侧来增大变焦取景器的放大率。 通过移动第四透镜组来校正由该放大率的增加引起的屈光度的变化。 根据上述结构,变焦取景器的整个长度短并且在变焦操作中不改变。 此外,简化了用于在变焦操作中移位透镜的机械机构的结构,并且在变焦操作中变焦取景器的屈光度没有改变。