Method of Scavenging Analysis for 2-Stroke-Cycle Diesel Cylinders 550291

HOW to go about improving scavenging efficiency in 2-stroke-cycle diesel engines through use of a static method of analysis is discussed here. Briefly, the steps are:
  1. 1.
    Determine airflow pattern in the existing cylinder design by means of instrumentation, and find the synthetic scavenging efficiency by plotting axial and tangential velocity components.
  2. 2.
    Decide what should be improved and the method of accomplishing this improvement, such as using a different port shape and angle.
  3. 3.
    Test the new design on the flow bench and compare with the original design for scavenging efficiency, tangential velocity distribution, and pressure drop.
  4. 4.
    Test the improved design in the engine.


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