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1.发明申请Method and Fluidic Apparatus for Generating Pulsed and Oscillating Air Flow for Surface Cleaning and Sweeping 有权用于产生脉冲和振荡空气流的表面清洁和扫描的方法和流体装置公开(公告)号：US20140299672A1
公开(公告)日：2014-10-09
申请号：US14244441
申请日：2014-04-03
Applicant: BOWLES FLUIDICS CORPORATION
Inventor： Shridhar GOPALAN , Dharapuram N. Srinath , Christopher South
CPC classification number: E01H1/0809 , A01G20/43 , B05B1/005 , B05B1/08
Abstract: An oscillating or pulsing fluid stream, or flow, is produced from a flow of pressurized air by fluidic apparatus in a device configured for use in surface cleaning, sweeping, lawn care applications, and the like. A converging nozzle assembly defining a tapered internal lumen having a smooth narrowing profile is configured to generate at a power nozzle a high velocity stream with minimal pressure drop. Downstream of the power nozzle, first and second control ports are in fluid communication with the high velocity stream and with each other via an inertance loop having a lumen of selected cross sectional area and length. The varying air flow is directed through an outlet chamber shaped to produce an oscillating or a pulsating flow.
Abstract translation: 在被配置为用于表面清洁，扫掠，草坪护理应用等的装置中，通过流体装置从加压空气流产生振荡或脉冲流体流或流。 限定具有平滑变窄轮廓的锥形内腔的会聚喷嘴组件被配置为在功率喷嘴处产生具有最小压降的高速流。 在动力喷嘴的下游，第一和第二控制端口与高速流流体连通，并通过具有选定横截面面积和长度的内腔的惯性环流体连通。 变化的气流被引导通过形状为产生振荡或脉动流的出口室。
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公开(公告)号：US09765491B2
公开(公告)日：2017-09-19
申请号：US14244441
申请日：2014-04-03
Applicant: BOWLES FLUIDICS CORPORATION
Inventor： Shridhar Gopalan , Dharapuram N. Srinath , Christopher South
CPC classification number: E01H1/0809 , A01G20/43 , B05B1/005 , B05B1/08
Abstract: An oscillating or pulsing fluid stream, or flow, is produced from a flow of pressurized air by fluidic apparatus in a device configured for use in surface cleaning, sweeping, lawn care applications, and the like. A converging nozzle assembly defining a tapered internal lumen having a smooth narrowing profile is configured to generate at a power nozzle a high velocity stream with minimal pressure drop. Downstream of the power nozzle, first and second control ports are in fluid communication with the high velocity stream and with each other via an inertance loop having a lumen of selected cross sectional area and length. The varying air flow is directed through an outlet chamber shaped to produce an oscillating or a pulsating flow.
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