1990-02-01

Experimental Study on Unsteady Jet Impinging on the Projection on a Wall 900607

The mixture formation process plays an important role on combustion in the direct injection stratified charge engine. A new mixture formation technology named OSKA has been developed for direct injection stratified charge SI engines. The OSKA process has the potential to yield better fuel economy and cleaner emissions. However, the mixture formation process has not been clarified completely, and detailed studies of the mixture formation process with the OSKA technology are needed.
As a fundamental study on the OSKA mixture formation, time and space resolved distribution is obtained on concentration and on pressure in the unsteady gas jet, which discharges with constant injection pressure into a quiescent atmosphere and impinges on a projection placed on a wall.

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