Cylinder Oil Feed Rate - WinGD LCD
WinGD Load-Change-Dependent feed-rate at given load and BN. Encourages under-feeding at part-load to cut lube consumption.
Feed rate
17.50g/kWh
Formula, assumptions, and limits
$$\dot m_\text{cyl} = \max\!\left(\dot m_\text{min}, \; 0.20 \cdot S \cdot \tfrac{70}{BN}\right)$$
WinGD LCD service-letter values (factor 0.20 vs MAN's 0.26 reflects different engine design reserve). Min rate differs at part-load (< 40 % MCR) vs above to protect against cold running / corrosive wear.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $S$ | Fuel sulphur | % m/m | BDN |
| $BN$ | Cylinder oil base number | mg KOH/g | oil data |
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