Exam Question
With reference to stuffing Box of a two stroke main engine explain following:
(a) Why stuffing box is required in two stroke diesel engines. (8)
(b) Explain the maintenance carried out on stuffing box during piston overhaul (8)
Class 4 (4th Engineer)
MEP
📅 Nov 2022
Reference Answer
The stuffing box in a two-stroke main engine is a critical component designed to maintain the integrity of the engine's operational divisions. It primarily separates the high-pressure scavenge air space and the combustion chamber from the crankcase, preventing cross-contamination and ensuring efficient engine operation.
### (a) Why stuffing box is required in two-stroke diesel engines.
A two-stroke marine diesel engine requires a stuffing box for several fundamental reasons, primarily relating to the segregation of engine spaces, lubrication systems, and combustion by-products. The stuffing box creates a vital barrier between the engine's power-generating components (cylinder and scavenge space) and its lubricating system (crankcase).
1. **Separation of Engine Spaces and Pressure Differentials:**
### (a) Why stuffing box is required in two-stroke diesel engines.
A two-stroke marine diesel engine requires a stuffing box for several fundamental reasons, primarily relating to the segregation of engine spaces, lubrication systems, and combustion by-products. The stuffing box creates a vital barrier between the engine's power-generating components (cylinder and scavenge space) and its lubricating system (crankcase).
1. **Separation of Engine Spaces and Pressure Differentials:**
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play