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Study of Soot Formation in a Direct-Injection Diesel Engine By Using a Laser-Light Sheet Method
Published October 06, 1992 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
Scattered-light images of soot clouds formed during combustion were obtained at different cross-sections in a deep-bowl direct-injection diesel engine by a laser-light sheet method using a high-power YAG pulse laser. From the comparison of them with direct flame photographs taken simultaneously, it was revealed that the soot cloud is mainly formed either in the periphery of the flame or in the vicinity of the chamber wall, where hot over-rich gases may be stagnant and quenched.