Control of Mean Droplet Diameter Issued From Y-Jet-Type Airblast Atomizer by Using Fluid Amplifier

Characteristics of Y-Jet-Type Airblast Atomizer with Self-Control Function

“…The SMD s and SMD l were determined from at least 3 such measurements, respectively, and the difference between the measured and the averaged values was approximately ±5%. The total SMD t for the overall spray was calculated according to the following equation (2) using the flow rates (m Ls , m Ll ) into the ports:…”

“…By dividing the liquid flow into two kinds of injection ports having different inner diameters (2) , the overall mean diameter of the spray was maintained at a fixed value over a broad liquid flow rate. Although this strategy was useful in order to suppress a change in the mean diameter due to the increase in the liquid flow rate in low-flow-rate regions, there was an increase in the mean diameter of the spray, probably due to an inadequate division of liquid flow to the ports in the high-flow-rate region.…”

“…The two flow paths are divided by a splitter (the sharp-edged section in the figure). Figure 2 (c) shows an orifice (2) that prevents any adverse impact on the flow rate control by the negative pressure that is generated in the port. Figure 3 shows a systematic diagram of the liquid flow in the fluid amplifier system.…”