In order to see the effect of injection timing and directions on the performance of a DI gas engine, an experimental engine was prepared, and firing tests were carried out. Also a laser induced fluorescence method was used to see in-cylinder fuel distribution. As the result, following conclusions were obtained. 1) NO2 could be used as a tracer substance to visualize in-cylinder gaseous fuel distribution. 2) Injection timing had large influence on the fuel distribution and the performance of the DI engine. 3) In-cylinder fuel distribution and operation stability of the DI engine was also affected by injection directions.
Investigation of Performance and Fuel Distribution of a Direct Injection Gas Engine Using LIF Measurement
Sae Technical Papers
Small Engine Technology Conference & Exposition ; 1999
1999-09-28
Conference paper
English
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