Exam Question
With specitic reference to any make, sketch and describe the Cylinder Lubricating system used in new generation marine diesel engines. How will you effect optimum cylinder oil feed with varying sulphur content of fuel oil.
Class 1 (Chief Engineer)
Engineering Management
📅 Mar 2022
Reference Answer
### **Introduction**
Modern two-stroke crosshead marine diesel engines require a sophisticated cylinder lubrication system to perform three primary functions:
1. **Lubrication**: Reduce friction and wear between the piston rings and cylinder liner.
2. **Neutralization**: Counteract the corrosive effects of sulfuric acid (H₂SO₄), formed during the combustion of sulfur-containing fuels. This prevents 'cold corrosion'.
Modern two-stroke crosshead marine diesel engines require a sophisticated cylinder lubrication system to perform three primary functions:
1. **Lubrication**: Reduce friction and wear between the piston rings and cylinder liner.
2. **Neutralization**: Counteract the corrosive effects of sulfuric acid (H₂SO₄), formed during the combustion of sulfur-containing fuels. This prevents 'cold corrosion'.
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