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
📅 Dec 2023
Reference Answer
The stuffing box in a two-stroke main engine is a critical component ensuring the operational integrity and longevity of the engine. Its design and maintenance are paramount for efficient combustion and lubrication.
### (a) Why stuffing box is required in two stroke diesel engines
A two-stroke diesel engine's operational principle necessitates a robust separation between the combustion space (cylinder liner and scavenge space below the piston) and the crankcase. This separation is achieved by the stuffing box, which is located at the bottom of the cylinder liner and seals around the reciprocating piston rod. The primary reasons for its requirement are:
1. **Separation of Pressures and Environments:**
### (a) Why stuffing box is required in two stroke diesel engines
A two-stroke diesel engine's operational principle necessitates a robust separation between the combustion space (cylinder liner and scavenge space below the piston) and the crankcase. This separation is achieved by the stuffing box, which is located at the bottom of the cylinder liner and seals around the reciprocating piston rod. The primary reasons for its requirement are:
1. **Separation of Pressures and Environments:**
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play