公开(公告)号：WO2014165687A1

公开(公告)日：2014-10-09

申请号：PCT/US2014/032849

申请日：2014-04-03

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： GOPALAN, Shridhar ,  SRINATH, Dharapuram, N. ,  SOUTH, Christopher

IPC: B05B1/08

CPC classification number: E01H1/0809 ,  A01G20/43 ,  B05B1/005 ,  B05B1/08

Abstract: An oscillating or pulsing fluid stream, or flow (18, 132, 300), is produced from a flow of pressurized air by fluidic apparatus (10, 100, 130, 180, 220) in a device (250) configured for use in surface cleaning, sweeping, lawn car applications, and the like. Converging inlet chamber walls (20, 22) define a tapered internal lumen having a smooth narrowing profile is configured to generate at a power nozzle (44) a high velocity steam with minimal pressure drop. Downstream of the power nozzle, first and second control ports (CP1, CP2) are in fluid communication with the high velocity steam (46) and with each other via an inertance loop (72) having a lumen of selected cross sectional area and length. The varying air flow is directed through an outlet chamber (14, 134) shaped to produce an oscillating flow (18) or a pulsating flow (132).

Abstract translation: 通过流体设备（10,100,130,180,220）中的加压空气流在由配置用于表面的设备（250）中产生振荡或脉冲流体流或流动（18,132,300） 清洁，清扫，草坪车应用等。 汇入入口室壁（20,22）限定具有平滑变窄轮廓的锥形内腔，其配置成在动力喷嘴（44）处产生具有最小压降的高速蒸汽。 功率喷嘴的下游，第一和第二控制端口（CP1，CP2）通过具有选定横截面积和长度的内腔的惯性回路（72）与高速蒸汽（46）流体连通。 变化的空气流引导通过形状为产生振荡流（18）或脉动流（132）的出口室（14,134）。

公开(公告)号：EP2983829A1

公开(公告)日：2016-02-17

申请号：EP14778885.5

申请日：2014-04-03

Applicant: Bowles Fluidics Corporation

Inventor： GOPALAN, Shridhar ,  SRINATH, Dharapuram, N. ,  SOUTH, Christopher

IPC: B05B1/08

CPC classification number: E01H1/0809 ,  A01G20/43 ,  B05B1/005 ,  B05B1/08

Abstract: An oscillating or pulsing fluid stream, or flow 18, 132, 300, is produced from a flow of pressurized air by fluidic apparatus 10, 100, 130, 180, 220 in a device 250 configured for use in surface cleaning, sweeping, lawn care applications, and the like. Converging inlet chamber walls 20, 22, define a tapered internal lumen having a smooth narrowing profile is configured to generate at a power nozzle 44 a high velocity stream with minimal pressure drop. Downstream of the power nozzle, first and second control ports CP1, CP2 are in fluid communication with the high velocity stream 46 and with each other via an inertance loop 72 having a lumen of selected cross sectional area and length. The varying air flow is directed through an outlet chamber 14, 134 shaped to produce an oscillating flow 18 or a pulsating flow 132.

公开(公告)号：EP2222408A1

公开(公告)日：2010-09-01

申请号：EP08855935.6

申请日：2008-12-05

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： RUSSELL, Gregory ,  GOPALAN, Shridhar ,  SOUTH, Christopher ,  HESTER, Russell ,  KOEHLER, Eric ,  ALLEN, Kerrie ,  SRIDHARA, Srinivasaiah

IPC: B05B1/08

CPC classification number: B05B1/02 ,  A01G25/00 ,  B05B1/08 ,  B05B1/14 ,  B05B1/304 ,  B05B15/65 ,  B05B15/70 ,  B05B15/74

Abstract: A long throw Pop-Up Irrigation Nozzle assembly has no oscillating or rotating parts and includes a cylindrical body having a fluid inlet and a sidewall defining at least one fluidic circuit configured to generate a selected spray pattern when irrigation fluid flows through the body. In order to throw long distance, droplet velocity, droplet size and droplet initial aim angle determine the throw to provide a low precipitation rate (“PR”) for fluidic sprays. The nozzle assembly and method of the present invention achieve a PR of 1 in/hr or less and good spray distribution with a scheduling coefficient (“SC”) of about 1.5 without utilizing any moving components to provide a significantly more cost effective nozzle assembly, as compared to prior art rotator nozzles.