predicted and measured ring pack performance of a diesel ... - Ricardo
predicted and measured ring pack performance of a diesel ... - Ricardo
predicted and measured ring pack performance of a diesel ... - Ricardo
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Comparions <strong>of</strong> Inter-Ring Gas Pressure <strong>and</strong> Ring Motion<br />
Predicted Ring Motion "a"<br />
Predicted Ring Motion "b"<br />
Actual Ring Motion "a"<br />
Actual Ring Motion "b"<br />
Cylinder Pressure - Model<br />
Predicted Inter-<strong>ring</strong> Pressure<br />
Cylinder Pressure<br />
Actual Inter-Ring Pres.<br />
24<br />
16<br />
8<br />
Pressure<br />
Ring Motion (Up/Down)<br />
Up<br />
Down<br />
Up<br />
Down<br />
Up<br />
Oil<br />
Ring<br />
Down<br />
-24<br />
-360 -270 -180 -90 0 90 180 270 360<br />
Crank Angle (degree)<br />
0<br />
Top<br />
Ring<br />
-8<br />
2nd<br />
Ring<br />
-16<br />
Figure Four: Inter-<strong>ring</strong> Pressure <strong>and</strong> Ring Motion Case 2 – Iteration 1<br />
Comparions <strong>of</strong> Inter-Ring Gas Pressure <strong>and</strong> Ring Motion<br />
Predicted Ring Motion "a"<br />
Predicted Ring Motion "b"<br />
Actual Ring Motion "a"<br />
Actual Ring Motion "b"<br />
Cylinder Pressure - Model<br />
Predicted Inter-<strong>ring</strong> Pressure<br />
Cylinder Pressure<br />
Actual Inter-Ring Pres.<br />
24<br />
16<br />
8<br />
Pressure<br />
Ring Motion (Up/Down)<br />
Up<br />
Down<br />
Up<br />
Down<br />
Up<br />
Oil<br />
Ring<br />
Down<br />
-24<br />
-360 -270 -180 -90 0 90 180 270 360<br />
Crank Angle (degree)<br />
0<br />
Top<br />
Ring<br />
-8<br />
2nd<br />
Ring<br />
-16<br />
Figure Five: Inter-<strong>ring</strong> Pressure <strong>and</strong> Ring Motion Case 2 – Iteration 2<br />
8
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