WD615 Diesel Engine Intake Ports Improvement

The target and method of the WD615 diesel engine intake and exhaust ports improvement are introduced. The helix-angel of intake ports is educed and valve set is a new design, the exhaust ports adopt the approximate circle shape cross-section as the exhaust pipe. Experimental results show that after the design improvement, swirl ratio decreases from 2.43 to 1.85, intake and exhaust ports flow coefficients increase by 24.5% and 50% respectively. The engine test proves that the engine performance and exhaust emission have been optimized.