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    • 5. 发明授权
    • Self cleaning screen
    • 自清屏
    • US5006135A
    • 1991-04-09
    • US448124
    • 1989-12-12
    • David Friesen
    • David Friesen
    • B01D46/10F01P11/12
    • B01D46/10F01P11/12
    • A self cleaning screen particularly for an engine cooling system comprises a housing having a screen front wall and a rear wall in which there is provided a circular opening. The housing is divided by divider plates connecting between the front and rear walls and extending outwardly from the circular opening to outer side edges of the housing. A baffle is mounted at the center of the opening and is rotatable by a fin or an electric motor. The baffle includes a triangular front plate for closing off a part of the screen aligned with the opening together with a side plate portion which closes off the area defined between the divider plates. As the baffle rotates therefore a portion of the screen extending radially from the centre of the opening to the side edge is closed off so that air does not flow through that area allowing filter debris to fall from the screen.
    • 特别用于发动机冷却系统的自清洁屏幕包括具有屏幕前壁和后壁的壳体,其中设置有圆形开口。 壳体由连接在前壁和后壁之间的分隔板分隔开并从壳体的圆形开口向外延伸到外侧边缘。 挡板安装在开口的中心,并可通过翅片或电动马达旋转。 挡板包括三角形前板,用于封闭与开口对准的一部分屏幕以及封闭限定在分隔板之间的区域的侧板部分。 当挡板旋转时,屏幕从开口的中心径向延伸到侧边缘的部分被封闭,使得空气不会流过该区域,从而使过滤屑从屏幕上落下。
    • 8. 发明授权
    • Harvester swath pick-up drive
    • 收割机捡起驱动器
    • US4498278A
    • 1985-02-12
    • US486500
    • 1983-04-19
    • David Friesen
    • David Friesen
    • A01D41/10A01D89/00
    • A01D41/10A01D89/00Y10S56/21
    • A swath pick-up for a harvester provides a drive for the transverse toothed members which acts to rotate the toothed members about a transverse axis while moving them longitudinally of the axis. The drive comprises a pair of plates arranged at opposed ends of the transverse member each supporting a plurality of pairs of bevel gears mounted such that one bevel gear rotates with the plate while the other is rotated by rotation of the first to rotate the respective transverse member on a crank. The bevel gears are inter-connected either by a shaft or by an elbow casing. The first bevel gear is either fixed to the plate for rotation therewith or is rotated by an internal cam track provided on a cam plate parallel to the rotatable support plate.
    • 用于收割机的条带拾取器提供用于横向齿形构件的驱动器,其用于围绕横向轴线旋转齿形构件,同时沿着轴线的纵向移动它们。 驱动器包括布置在横向构件的相对端部处的一对板,每对板支撑多对锥齿轮,所述多个锥齿轮安装成使得一个锥齿轮与板一起旋转,而另一个锥齿轮通过第一转动而旋转,以使相应的横向构件 在曲柄上 锥齿轮通过轴或弯头外壳相互连接。 第一锥齿轮或者固定到板上以与其一起旋转,或者通过设置在平行于可旋转支撑板的凸轮板上的内部凸轮轨道旋转。