Class 1 (Chief Engineer) Engineering Management 📅 Mar 2022

Exam Question

(a) List out the differences in the ME engine, as compared to conventional MC engine?

(b) What is the purpose of the HPS system? What is meant by the HCU - which components are included in this?

(d) Describe the differences in the working of the fuel pumps (called Fuel Pressure Boosters) in ME engines, as compared to fuel pumps of conventional engines.

Reference Answer

### (a) Differences between ME and Conventional MC Engines
The primary and most fundamental difference is the replacement of the chain-driven camshaft and its associated mechanical/hydraulic components with an electronically controlled, hydraulically actuated system. This leads to the following key distinctions:
| Feature | MAN B&W ME-C Engine (Electronically Controlled) | MAN B&W MC-C Engine (Conventional) | Remarks |
|--------------------------|--------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------|

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