different between twostroke engine foure stroke engine
Answers were Sorted based on User's Feedback
Answer / bharani
In a two stroke engine, for every two rotations of the crank
shaft there will be one power stroke.Hence during
compression stroke, fuel will be drawn in to the crank case
(suction) and during power stroke, burnt fuel will be thrown
out through transfer ports (exaust).
In a four stroke engine, for every four rotations of the
crank shaft there will be one power stroke.
Here, suction, compression,power & exaust strokes are seperate
as there will be inlet and exaust valves.
Is This Answer Correct ? | 15 Yes | 4 No |
Answer / sujay saha ( lecturer of n.h.i
1. Thermodynamic Cycle is completed in 2 revolution of the
crankshaft for 4 stroke engine where as this cycle is
completed in one revolution of the crank shaft for 2 stroke
engine.
2.Turning moment diagram is not so uniformlike 2 stroke
engine for that reason heavier flywheel is required for 4
stroke engine.
3. Volumetric efficiency is more than 2 stroke engine.
4. Thermal efficiency is higher than the 2 stroke engine.
Is This Answer Correct ? | 10 Yes | 0 No |
Answer / manjunath
1.in 4stroke the cycle in completed in 4strokes of the
piston..or in 2rev of crank shaft...
a.in 2stroke the cycle is completed in 2strokes of the
piston..or in 1rev of crank shaft...
2.in 4stroke spark ignition..
b.in 2stroke compression ignition...
3.power produced for same size of engine is small...
c.----"---------"----------"------------ is more....
4.4stroke contains valve mechanisms....
d.2stroke---"----- ports ----"-----...
5.lesser wear and tear in 4stroke.......
e.greater -------"----- in 2stroke.....
6. thermal effi is 25%........
f. --------"------ 30-36%.....
7.4stroke works on ooto cycle....
g.2stroke works on diesel cycle......
Is This Answer Correct ? | 3 Yes | 1 No |
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