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公开(公告)号：US4474327A
公开(公告)日：1984-10-02
申请号：US461867
申请日：1983-01-28
CPC分类号： B05B7/1418 , A01C15/02 , A01C15/04 , A01M9/0046
摘要： A fertilizer spreader includes an attachment assembly for use with a portable hand-held air blower for entraining granular fertilizer or the like into the discharge air stream of the blower, whereby the fertilizer is broadcast by the air stream over a lawn or garden area. The attachment assembly comprises an adapter nozzle connected in-line with the discharge air stream of the blower and including a pressure port through which a portion of the discharge air stream is directed for passage through a pressure tube to a diffuser mounted within a portable vented fertilizer-receiving container near the bottom thereof. The diffuser turns the air stream upwardly within the container and divides the stream into a plurality of turbulent air flows for agitating and suspending particles in a localized region above the diffuser, with a substantial portion of the air stream escaping from the container through a vent at a position remote from the localized region. The fertilizer particles suspended within the localized region are drawn into a downwardly open suction tube which is connected back to the adapter nozzle at a Venturi throat therein to provide a vacuum source for drawing the fertilizer particles into the blower discharge air stream for entrainment therewith. A bleed hole in the suction tube is partially closed by an adjustment collar to select the magnitude of the vacuum acting upon the suspended fertilizer particles for controlling the flow rate of particles into the blower discharge air stream.
摘要翻译： 肥料撒布机包括用于与便携式手持式鼓风机一起使用的附接组件，用于将颗粒肥料等夹带到鼓风机的排出空气流中，由此将肥料通过空气流在草坪或花园区域上广播。 附接组件包括与鼓风机的排出空气流成直线连接的适配器喷嘴，并且包括压力端口，排出空气流的一部分通过该压力端口被引导以通过压力管到安装在便携式通风肥料 接收容器在其底部附近。 扩散器使空气流在容器内向上转动，并将流分成多个湍流空气流，用于搅拌和悬浮颗粒在扩散器上方的局部区域，其中大部分空气流从容器中通过排气口逸出 远离本地化区域的位置。 悬浮在局部区域内的肥料颗粒被吸入向下打开的抽吸管中，该抽吸管在文丘里喉管处连接回适配器喷嘴，以提供用于将肥料颗粒吸入鼓风机排出气流中以与其夹带的真空源。 抽吸管中的排放孔部分地被调节环封闭，以选择作用在悬浮肥料颗粒上的真空大小，以控制颗粒进入鼓风机排出气流的流速。
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公开(公告)号：US4387852A
公开(公告)日：1983-06-14
申请号：US301404
申请日：1981-09-11
CPC分类号： B05B7/1418 , A01C15/04 , A01M9/0046
摘要： A fertilizer spreader includes an attachment assembly for use with a portable hand-held air blower for entraining granular fertilizer or the like into the discharge air stream of the blower, whereby the fertilizer is broadcast by the air stream over a lawn or garden area. The attachment assembly comprises an adapter nozzle connected in-line with the discharge air stream of the blower and including a pressure port through which a portion of the discharge air stream is directed for passage through a pressure tube to a diffuser mounted within a portable fertilizer-receiving container near the bottom thereof. The diffuser turns the air stream upwardly within the container and divides the stream into a plurality of turbulent air flows for agitating and suspending particles in a localized region above the diffuser. These suspended fertilizer particles are drawn into a downwardly open suction tube which is connected back to the adapter nozzle at a Venturi throat therein to provide a vacuum source for drawing the fertilizer particles into the blower discharge air stream for entrainment therewith. A bleed hole in the suction tube is partially closed by an adjustment collar to select the magnitude of the vacuum acting upon the suspended fertilizer particles for controlling the flow rate of particles into the blower discharge air stream.
摘要翻译： 肥料撒布机包括用于与便携式手持式鼓风机一起使用的附接组件，用于将颗粒肥料等夹带到鼓风机的排出空气流中，由此将肥料通过空气流在草坪或花园区域上广播。 连接组件包括与鼓风机的排出空气流成直线连接的适配器喷嘴，并且包括压力端口，排出空气流的一部分通过该压力端口被引导以通过压力管到安装在便携式肥料 - 接收容器在其底部附近。 扩散器使空气流在容器内向上转动，并将流分成多个湍流空气流，用于搅拌和悬浮颗粒在扩散器上方的局部区域。 这些悬浮的肥料颗粒被吸入向下打开的抽吸管中，该抽吸管在文丘里喉管处连接回适配器喷嘴，以提供用于将肥料颗粒吸入鼓风机排出气流中以与其夹带的真空源。 抽吸管中的排放孔部分地被调节环封闭，以选择作用在悬浮肥料颗粒上的真空大小，以控制颗粒进入鼓风机排出气流的流速。
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