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Reduction of emissions in internal combustion engine by air-assist fuel atomization (Tested in Peugeot Engine). Figure 1: Schematic diagram of atomizer with colliding streams. The atomizer contains a coaxial nozzle 1 for air injection and a nozzle 2 for liquid injection positioned at 90 ? angle to the axis. The diameter d a of the nozzle 1 was made equal to 2 mm, of the nozzle 2 - d w = 1 mm. This atomizer was tested at constant water supply pressure P
w= 0.1 bar and air supply pressures Pa varying from 0.5 to 3 bar. Droplet sizes were measured downstream of the atomizer’s exit using an Aerometrics PDPA system. An argon-ion laser, providing 2W power green light, was used by the PDPA. In principle, this system allows to measure droplet sizes in the range d p = 0.7 - 220 micron. Figure 4: Schematic diagram of the atomizer with vortex chamber.
Tags : argon ion laser, internal combustion engine, droplet sizes, vortex chamber, peugeot engine, aerometrics, liquid injection, atomizer, air injection, schematic diagram, nozzle, pdpa, vortex, water supply, figure 1
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