Development of a Gaseous Fuel Injection Rate Meter and Measurement of Characteristics of Intermittent Gaseous Fuel Jets

研制了一种采用一维管流的气体燃油喷射量计，测量精度提高到1%左右。结果表明，该注速计适用于多种气体种类和多级注气。利用Mie散射法可视化了间歇气体燃料射流的发展过程，并利用喷油器的瞬态特性数据揭示了间歇气体燃料射流的特性。

A gaseous fuel injection rate meter, which employs 1-dimensional pipe flow, was developed and it is shown that its measurement accuracy was improved to be the order of 1%. It is shown that several gas species and multi-stage injection are applicable to the injection rate meter. The development process of intermittent gaseous fuel jets was visualized using Mie scattering method, and their characteristics were revealed by use of the data of transient characteristics of injectors obtained by the injection rate meter.