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Almost all the researches relating to the characteristics of transient spray have carried out by using the fuel with only single component. However, the actual fuel oil supplying to a reciprocating engine has multiple components. Thus, this paper describes the experimental results on the characteristics of a transient spray formed by the mixed fuel with three kinds of pure fuel. The state of periphery of non evaporating spray near the nozzle outlet was arranged by the dimensionless number. And the technique of laser Induced fluorescence (LIF) was applied to an evaporating spray to find the state of mixing.

To improve fuel consumption, safety and comfort, which are very important themes for automobiles, powertrain control technologies can play a very important role. This paper discusses recent developments and future trends of powertrain control technologies especially in the area of automatic transmission, continuously variable transmission and four wheel drive.