公开(公告)号：US10066351B2

公开(公告)日：2018-09-04

申请号：US15687162

申请日：2017-08-25

Applicant: DLHBOWLES, Inc.

Inventor： Shridhar Gopalan ,  Dharapuram N Srinath ,  Christopher South

IPC: E01H1/08 ,  B05B1/00 ,  B05B1/08 ,  A01G20/43

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：US09987639B2

公开(公告)日：2018-06-05

申请号：US14535557

申请日：2014-11-07

Applicant: DLHBOWLES, INC.

Inventor： Gregory Russell ,  Shridhar Gopalan ,  Christopher South ,  Russell Hester ,  Eric Koehler ,  Kerrie Allen ,  Srinivasaiah Sridhara

IPC: B05B1/02 ,  B05B1/08 ,  B05B1/30 ,  B05B15/10 ,  A01G25/00 ,  B05B1/14 ,  B05B15/06

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.