1963-01-01

Charge Stratification by Fuel Injection into Swirling Air 630477

Theoretical and experimental investigations of fuel charge stratification by injection into swirling air are presented. Single drop mechanics are used with some modifications. Theoretical fuel-air ratio plots help explain the mechanism of fuel stratification, and are useful in giving directions for optimizing operating conditions. Engine tests show that the stratification system is practicable for idle and low load conditions, and in combination with homogeneous charge induction for up to full load. Such system would use extremely simple injection equipment without any fuel-air ratio controls, and be rather insensitive to timing between injection and spark.

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