Measurement of Fuel Injection Rate by LDA Flow Rate Meter and Spray Characteristics

Abstract

It is necessary to clarify spray characteristics for improvement combustion efficiency. The author's group has been developed LDA flow rate meter based on Laser Doppler Anemometer (LDA) for the fuel injection rate measurement. The paper introduces the study of a flow rate measurement by LDA flow meter, Bosch type injection rate meter and of a visualization by high-speed camera. The fuel injection rate is measured with various fuel pressures and injection durations. It is clarified that the reflection pressure wave measured LDA flow rate meter does not affect spray characteristics.