Exam Question
Sketch and describe a cylinder head for a large diesel engine and show the provision made for cooling. Explain how the water spaces are examined and state the usual causes of cracking. (16)
Class 4 (4th Engineer)
MEKM
📅 Oct 2022
Reference Answer
### **1. Description and Construction of a Cylinder Head**
The cylinder head, also known as the cylinder cover, is a critical component of a large two-stroke diesel engine. It serves multiple essential functions:
* **Sealing the Combustion Space**: It forms the upper boundary of the combustion chamber, containing the high pressures and temperatures generated during combustion.
* **Housing Engine Components**: It provides bores and passages for mounting essential valves such as the central exhaust valve, fuel injectors, air starting valve, safety valve, and an indicator cock.
The cylinder head, also known as the cylinder cover, is a critical component of a large two-stroke diesel engine. It serves multiple essential functions:
* **Sealing the Combustion Space**: It forms the upper boundary of the combustion chamber, containing the high pressures and temperatures generated during combustion.
* **Housing Engine Components**: It provides bores and passages for mounting essential valves such as the central exhaust valve, fuel injectors, air starting valve, safety valve, and an indicator cock.
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