Advantages of two stroke engine over a four stroke engine, Mechanical Engineering

Advantages of two stroke engine over a four stroke engine:

The advantages of two stroke engine over a four stroke engine are stated below:

1. A two stroke engine has twice the number of power stroke than four strokes engine at the same speed. Hence two stroke engine develops double the power per cubic meter of the swept volume than the four stroke engine.

2. The weight of the two stroke engine is less than four stroke engine because of the lighter flywheel due to more uniform torque on the crankshaft.

3. The scavenging is complete in low speed two stroke engines, as exhaust gases are not left in the clearance volume as in the four stroke engine.

4. Since there are only two strokes in cycle, the work required to overcome the friction and the exhaust strokes is saved.

5. As there are no mechanical valves and valve gears, construction of two strokes engine is simple which reduces the initial cost of it.

6. A two stroke engine can be reversed easily by a simple reversing gear mechanism.

7. A two stroke engine can be started than a four stroke engine:

8. A two stroke engine occupies less space.

9. A lighter foundation will be sufficient for two stroke engine.

10. A two stroke engine is having less maintenance cost as it requires only few parts.

Posted Date: 10/15/2012 5:19:35 AM | Location : United States







Related Discussions:- Advantages of two stroke engine over a four stroke engine, Assignment Help, Ask Question on Advantages of two stroke engine over a four stroke engine, Get Answer, Expert's Help, Advantages of two stroke engine over a four stroke engine Discussions

Write discussion on Advantages of two stroke engine over a four stroke engine
Your posts are moderated
Related Questions
The Mechanical Engineer/Specialist shall be responsible for coordinating project issues related to stress analysis, as they relate to his/her equipment, with the Stress Engineer/Sp

Q. Can you illustrate Sea Coal? Sea coal or coal dust is finely ground soft coal (pulverized coal). It is added to moulding sand used to make ferrous castings. It tends to obta

Determine Mean coil radius - close coiled helical spring:  A close coiled helical spring contains a stiffness of 1 kN/m in compression to a maximum load of 50 N and a maximum

Q. Describe Cold extrusion? • Cold extrusion is done at room temperature or near room temperature. • The advantages of this over hot extrusion are the lack of

Specific Properties of a System The extensive properties while estimated on the unit mass basis result in intensive property that is as well known as specific property. For exa

For example, if one were provided with the set [3 1 3 -4 -6], the resulting answers would be [3 1 -4], [3 1 -4], an [3 3 -6], as these are the three sets of three values which sum


I would like a help for my fluid mechanics assignment

Find out the centre of gravity of solid sphere: Find out the C. G. of a body formed by a solid sphere placed over a solid cylinder of similar radius a as illustrated in Figure

Corporate level - Safety Organization This is a corporate level and there should be a company director which is engaged in formulating safety policies at corporate level. The