The Atomization Characteristics of a Vibration-type Atomizer when Fuel is Supplied Intermittently

Abstract

The atomization characteristics of an atomizer of the ultrasonic vibration type are investigated when fuel is supplied intermittently to the vibration member. The time interval for the liquid supply is 100ms and the supply is varied from 5ms to 20ms. The mean diameter, velocity, and flow rate of the spray are measured by a phase doppler-type analyzer. The velocity is 0.2-1.0m/s and the mean diameter is 70-90μm. When the fuel is supplied intermittently to the vibratory member, large-size droplets are formed initially. The droplet size is reduced by improving the vibratory member shape and controlling its vibration.